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authorAndré Klitzing <aklitzing@gmail.com>2017-06-24 00:11:01 +0200
committerSimon Hausmann <simon.hausmann@qt.io>2017-08-04 08:36:22 +0000
commit5169d588a599036aa1962f518a7c321f5e3e7296 (patch)
tree4268ab94056c9e476b4ae1e73bd88a87975141d4
parent959cc53b618b632d1c768f561c68e0b23b85335f (diff)
Update bundled zlib to version 1.2.11
Also clean up some unused files. The remaining diff to clean 1.2.11 is archived in the qtpatches.diff file. [ChangeLog][Third-Party Code] zlib was updated to version 1.2.11. Task-number: QTBUG-31020 Change-Id: I89f890904af48c6e9ba6eabc5d58f5adbe2c53f0 Reviewed-by: Kai Koehne <kai.koehne@qt.io>
-rw-r--r--src/3rdparty/zlib.pri32
-rw-r--r--src/3rdparty/zlib/0001-Fix-WEC2013-build-of-zlib.patch26
-rw-r--r--src/3rdparty/zlib/CMakeLists.txt190
-rw-r--r--src/3rdparty/zlib/FAQ366
-rw-r--r--src/3rdparty/zlib/INDEX65
-rw-r--r--src/3rdparty/zlib/doc/algorithm.txt209
-rw-r--r--src/3rdparty/zlib/doc/rfc1950.txt619
-rw-r--r--src/3rdparty/zlib/doc/rfc1951.txt955
-rw-r--r--src/3rdparty/zlib/doc/rfc1952.txt675
-rw-r--r--src/3rdparty/zlib/doc/txtvsbin.txt107
-rw-r--r--src/3rdparty/zlib/example.c565
-rw-r--r--src/3rdparty/zlib/gzread.c653
-rwxr-xr-xsrc/3rdparty/zlib/import_from_zlib_tarball.sh112
-rw-r--r--src/3rdparty/zlib/minigzip.c440
-rw-r--r--src/3rdparty/zlib/qt_attribution.json4
-rw-r--r--src/3rdparty/zlib/qtpatches.diff154
-rw-r--r--src/3rdparty/zlib/src/ChangeLog (renamed from src/3rdparty/zlib/ChangeLog)319
-rw-r--r--src/3rdparty/zlib/src/README (renamed from src/3rdparty/zlib/README)27
-rw-r--r--src/3rdparty/zlib/src/adler32.c (renamed from src/3rdparty/zlib/adler32.c)85
-rw-r--r--src/3rdparty/zlib/src/compress.c (renamed from src/3rdparty/zlib/compress.c)42
-rw-r--r--src/3rdparty/zlib/src/crc32.c (renamed from src/3rdparty/zlib/crc32.c)122
-rw-r--r--src/3rdparty/zlib/src/crc32.h (renamed from src/3rdparty/zlib/crc32.h)2
-rw-r--r--src/3rdparty/zlib/src/deflate.c (renamed from src/3rdparty/zlib/deflate.c)1033
-rw-r--r--src/3rdparty/zlib/src/deflate.h (renamed from src/3rdparty/zlib/deflate.h)45
-rw-r--r--src/3rdparty/zlib/src/gzclose.c (renamed from src/3rdparty/zlib/gzclose.c)0
-rw-r--r--src/3rdparty/zlib/src/gzguts.h (renamed from src/3rdparty/zlib/gzguts.h)129
-rw-r--r--src/3rdparty/zlib/src/gzlib.c (renamed from src/3rdparty/zlib/gzlib.c)204
-rw-r--r--src/3rdparty/zlib/src/gzread.c654
-rw-r--r--src/3rdparty/zlib/src/gzwrite.c (renamed from src/3rdparty/zlib/gzwrite.c)462
-rw-r--r--src/3rdparty/zlib/src/infback.c (renamed from src/3rdparty/zlib/infback.c)18
-rw-r--r--src/3rdparty/zlib/src/inffast.c (renamed from src/3rdparty/zlib/inffast.c)89
-rw-r--r--src/3rdparty/zlib/src/inffast.h (renamed from src/3rdparty/zlib/inffast.h)0
-rw-r--r--src/3rdparty/zlib/src/inffixed.h (renamed from src/3rdparty/zlib/inffixed.h)6
-rw-r--r--src/3rdparty/zlib/src/inflate.c (renamed from src/3rdparty/zlib/inflate.c)253
-rw-r--r--src/3rdparty/zlib/src/inflate.h (renamed from src/3rdparty/zlib/inflate.h)11
-rw-r--r--src/3rdparty/zlib/src/inftrees.c (renamed from src/3rdparty/zlib/inftrees.c)74
-rw-r--r--src/3rdparty/zlib/src/inftrees.h (renamed from src/3rdparty/zlib/inftrees.h)0
-rw-r--r--src/3rdparty/zlib/src/trees.c (renamed from src/3rdparty/zlib/trees.c)151
-rw-r--r--src/3rdparty/zlib/src/trees.h (renamed from src/3rdparty/zlib/trees.h)0
-rw-r--r--src/3rdparty/zlib/src/uncompr.c93
-rw-r--r--src/3rdparty/zlib/src/zconf.h (renamed from src/3rdparty/zlib/zconf.h)236
-rw-r--r--src/3rdparty/zlib/src/zlib.h (renamed from src/3rdparty/zlib/zlib.h)753
-rw-r--r--src/3rdparty/zlib/src/zutil.c (renamed from src/3rdparty/zlib/zutil.c)79
-rw-r--r--src/3rdparty/zlib/src/zutil.h (renamed from src/3rdparty/zlib/zutil.h)166
-rw-r--r--src/3rdparty/zlib/treebuild.xml116
-rw-r--r--src/3rdparty/zlib/uncompr.c59
-rw-r--r--src/3rdparty/zlib/zconf.h.cmakein430
-rw-r--r--src/3rdparty/zlib/zconf.h.in428
-rw-r--r--src/3rdparty/zlib/zlib.3151
-rw-r--r--src/3rdparty/zlib/zlib.3.pdfbin8686 -> 0 bytes
-rw-r--r--src/3rdparty/zlib/zlib.pc.in13
-rw-r--r--src/3rdparty/zlib_dependency.pri2
52 files changed, 3899 insertions, 7525 deletions
diff --git a/src/3rdparty/zlib.pri b/src/3rdparty/zlib.pri
index ccddb181e1..4d8af3f0c6 100644
--- a/src/3rdparty/zlib.pri
+++ b/src/3rdparty/zlib.pri
@@ -1,19 +1,19 @@
-INCLUDEPATH = $$PWD/zlib $$INCLUDEPATH
+INCLUDEPATH = $$PWD/zlib/src $$INCLUDEPATH
SOURCES+= \
- $$PWD/zlib/adler32.c \
- $$PWD/zlib/compress.c \
- $$PWD/zlib/crc32.c \
- $$PWD/zlib/deflate.c \
- $$PWD/zlib/gzclose.c \
- $$PWD/zlib/gzlib.c \
- $$PWD/zlib/gzread.c \
- $$PWD/zlib/gzwrite.c \
- $$PWD/zlib/infback.c \
- $$PWD/zlib/inffast.c \
- $$PWD/zlib/inflate.c \
- $$PWD/zlib/inftrees.c \
- $$PWD/zlib/trees.c \
- $$PWD/zlib/uncompr.c \
- $$PWD/zlib/zutil.c
+ $$PWD/zlib/src/adler32.c \
+ $$PWD/zlib/src/compress.c \
+ $$PWD/zlib/src/crc32.c \
+ $$PWD/zlib/src/deflate.c \
+ $$PWD/zlib/src/gzclose.c \
+ $$PWD/zlib/src/gzlib.c \
+ $$PWD/zlib/src/gzread.c \
+ $$PWD/zlib/src/gzwrite.c \
+ $$PWD/zlib/src/infback.c \
+ $$PWD/zlib/src/inffast.c \
+ $$PWD/zlib/src/inflate.c \
+ $$PWD/zlib/src/inftrees.c \
+ $$PWD/zlib/src/trees.c \
+ $$PWD/zlib/src/uncompr.c \
+ $$PWD/zlib/src/zutil.c
TR_EXCLUDE += $$PWD/*
diff --git a/src/3rdparty/zlib/0001-Fix-WEC2013-build-of-zlib.patch b/src/3rdparty/zlib/0001-Fix-WEC2013-build-of-zlib.patch
deleted file mode 100644
index ef6fb33eed..0000000000
--- a/src/3rdparty/zlib/0001-Fix-WEC2013-build-of-zlib.patch
+++ /dev/null
@@ -1,26 +0,0 @@
-From f2652cfd83f34ec3e70a936e5ea9f8623b66bd95 Mon Sep 17 00:00:00 2001
-From: Bjoern Breitmeyer <bjoern.breitmeyer@kdab.com>
-Date: Fri, 27 Mar 2015 15:46:59 +0100
-Subject: [PATCH] Fix WEC2013 build of zlib.
-
-Change-Id: I4d1908f1175ed39e2df8717fb0b5a17befe88744
----
- src/3rdparty/zlib/zutil.h | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/3rdparty/zlib/zutil.h b/src/3rdparty/zlib/zutil.h
-index 8e535ac..4d367a9 100644
---- a/src/3rdparty/zlib/zutil.h
-+++ b/src/3rdparty/zlib/zutil.h
-@@ -143,7 +143,7 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
- #endif
-
- #if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX
--# if defined(_WIN32_WCE)
-+# if defined(_WIN32_WCE) && _WIN32_WCE < 0x800
- # define fdopen(fd,mode) NULL /* No fdopen() */
- # ifndef _PTRDIFF_T_DEFINED
- typedef int ptrdiff_t;
---
-1.8.1.msysgit.1
-
diff --git a/src/3rdparty/zlib/CMakeLists.txt b/src/3rdparty/zlib/CMakeLists.txt
deleted file mode 100644
index a64fe0b2ca..0000000000
--- a/src/3rdparty/zlib/CMakeLists.txt
+++ /dev/null
@@ -1,190 +0,0 @@
-cmake_minimum_required(VERSION 2.4.4)
-set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON)
-
-project(zlib C)
-
-if(NOT DEFINED BUILD_SHARED_LIBS)
- option(BUILD_SHARED_LIBS "Build a shared library form of zlib" ON)
-endif()
-
-include(CheckTypeSize)
-include(CheckFunctionExists)
-include(CheckIncludeFile)
-include(CheckCSourceCompiles)
-enable_testing()
-
-check_include_file(sys/types.h HAVE_SYS_TYPES_H)
-check_include_file(stdint.h HAVE_STDINT_H)
-check_include_file(stddef.h HAVE_STDDEF_H)
-
-#
-# Check to see if we have large file support
-#
-set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1)
-# We add these other definitions here because CheckTypeSize.cmake
-# in CMake 2.4.x does not automatically do so and we want
-# compatibility with CMake 2.4.x.
-if(HAVE_SYS_TYPES_H)
- list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_TYPES_H)
-endif()
-if(HAVE_STDINT_H)
- list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDINT_H)
-endif()
-if(HAVE_STDDEF_H)
- list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDDEF_H)
-endif()
-check_type_size(off64_t OFF64_T)
-if(HAVE_OFF64_T)
- add_definitions(-D_LARGEFILE64_SOURCE=1)
-endif()
-set(CMAKE_REQUIRED_DEFINITIONS) # clear variable
-
-#
-# Check for fseeko
-#
-check_function_exists(fseeko HAVE_FSEEKO)
-if(NOT HAVE_FSEEKO)
- add_definitions(-DNO_FSEEKO)
-endif()
-
-#
-# Check for unistd.h
-#
-check_include_file(unistd.h Z_HAVE_UNISTD_H)
-
-if(MSVC)
- set(CMAKE_DEBUG_POSTFIX "d")
- add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
- add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
-endif()
-
-if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
- # If we're doing an out of source build and the user has a zconf.h
- # in their source tree...
- if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h)
- message(FATAL_ERROR
- "You must remove ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h "
- "from the source tree. This file is included with zlib "
- "but CMake generates this file for you automatically "
- "in the build directory.")
- endif()
-endif()
-
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein
- ${CMAKE_CURRENT_BINARY_DIR}/zconf.h @ONLY)
-include_directories(${CMAKE_CURRENT_BINARY_DIR})
-
-
-#============================================================================
-# zlib
-#============================================================================
-
-set(ZLIB_PUBLIC_HDRS
- ${CMAKE_CURRENT_BINARY_DIR}/zconf.h
- zlib.h
-)
-set(ZLIB_PRIVATE_HDRS
- crc32.h
- deflate.h
- gzguts.h
- inffast.h
- inffixed.h
- inflate.h
- inftrees.h
- trees.h
- zutil.h
-)
-set(ZLIB_SRCS
- adler32.c
- compress.c
- crc32.c
- deflate.c
- gzclose.c
- gzlib.c
- gzread.c
- gzwrite.c
- inflate.c
- infback.c
- inftrees.c
- inffast.c
- trees.c
- uncompr.c
- zutil.c
- win32/zlib1.rc
-)
-
-# parse the full version number from zlib.h and include in ZLIB_FULL_VERSION
-file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h _zlib_h_contents)
-string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([0-9A-Za-z.]+)\".*"
- "\\1" ZLIB_FULL_VERSION ${_zlib_h_contents})
-
-if(MINGW)
- # This gets us DLL resource information when compiling on MinGW.
- add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
- COMMAND windres.exe
- -D GCC_WINDRES
- -I ${CMAKE_CURRENT_SOURCE_DIR}
- -I ${CMAKE_CURRENT_BINARY_DIR}
- -o ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
- -i ${CMAKE_CURRENT_SOURCE_DIR}/win32/zlib1.rc)
- set(ZLIB_SRCS ${ZLIB_SRCS} ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj)
-endif(MINGW)
-
-add_library(zlib ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
-set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL)
-
-set_target_properties(zlib PROPERTIES SOVERSION 1)
-
-if(NOT CYGWIN)
- # This property causes shared libraries on Linux to have the full version
- # encoded into their final filename. We disable this on Cygwin because
- # it causes cygz-${ZLIB_FULL_VERSION}.dll to be created when cygz.dll
- # seems to be the default.
- #
- # This has no effect with MSVC, on that platform the version info for
- # the DLL comes from the resource file win32/zlib1.rc
- set_target_properties(zlib PROPERTIES VERSION ${ZLIB_FULL_VERSION})
-endif()
-
-if(UNIX)
- # On unix-like platforms the library is almost always called libz
- set_target_properties(zlib PROPERTIES OUTPUT_NAME z)
-elseif(BUILD_SHARED_LIBS AND WIN32)
- # Creates zlib1.dll when building shared library version
- set_target_properties(zlib PROPERTIES SUFFIX "1.dll")
-endif()
-
-if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
- install(TARGETS zlib
- RUNTIME DESTINATION bin
- ARCHIVE DESTINATION lib
- LIBRARY DESTINATION lib )
-endif()
-if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL )
- install(FILES ${ZLIB_PUBLIC_HDRS} DESTINATION include)
-endif()
-if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
- install(FILES zlib.3 DESTINATION share/man/man3)
-endif()
-
-#============================================================================
-# Example binaries
-#============================================================================
-
-add_executable(example example.c)
-target_link_libraries(example zlib)
-add_test(example example)
-
-add_executable(minigzip minigzip.c)
-target_link_libraries(minigzip zlib)
-
-if(HAVE_OFF64_T)
- add_executable(example64 example.c)
- target_link_libraries(example64 zlib)
- set_target_properties(example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
- add_test(example64 example64)
-
- add_executable(minigzip64 minigzip.c)
- target_link_libraries(minigzip64 zlib)
- set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
-endif()
diff --git a/src/3rdparty/zlib/FAQ b/src/3rdparty/zlib/FAQ
deleted file mode 100644
index 1a22750a58..0000000000
--- a/src/3rdparty/zlib/FAQ
+++ /dev/null
@@ -1,366 +0,0 @@
-
- Frequently Asked Questions about zlib
-
-
-If your question is not there, please check the zlib home page
-http://zlib.net/ which may have more recent information.
-The lastest zlib FAQ is at http://zlib.net/zlib_faq.html
-
-
- 1. Is zlib Y2K-compliant?
-
- Yes. zlib doesn't handle dates.
-
- 2. Where can I get a Windows DLL version?
-
- The zlib sources can be compiled without change to produce a DLL. See the
- file win32/DLL_FAQ.txt in the zlib distribution. Pointers to the
- precompiled DLL are found in the zlib web site at http://zlib.net/ .
-
- 3. Where can I get a Visual Basic interface to zlib?
-
- See
- * http://marknelson.us/1997/01/01/zlib-engine/
- * win32/DLL_FAQ.txt in the zlib distribution
-
- 4. compress() returns Z_BUF_ERROR.
-
- Make sure that before the call of compress(), the length of the compressed
- buffer is equal to the available size of the compressed buffer and not
- zero. For Visual Basic, check that this parameter is passed by reference
- ("as any"), not by value ("as long").
-
- 5. deflate() or inflate() returns Z_BUF_ERROR.
-
- Before making the call, make sure that avail_in and avail_out are not zero.
- When setting the parameter flush equal to Z_FINISH, also make sure that
- avail_out is big enough to allow processing all pending input. Note that a
- Z_BUF_ERROR is not fatal--another call to deflate() or inflate() can be
- made with more input or output space. A Z_BUF_ERROR may in fact be
- unavoidable depending on how the functions are used, since it is not
- possible to tell whether or not there is more output pending when
- strm.avail_out returns with zero. See http://zlib.net/zlib_how.html for a
- heavily annotated example.
-
- 6. Where's the zlib documentation (man pages, etc.)?
-
- It's in zlib.h . Examples of zlib usage are in the files example.c and
- minigzip.c, with more in examples/ .
-
- 7. Why don't you use GNU autoconf or libtool or ...?
-
- Because we would like to keep zlib as a very small and simple package.
- zlib is rather portable and doesn't need much configuration.
-
- 8. I found a bug in zlib.
-
- Most of the time, such problems are due to an incorrect usage of zlib.
- Please try to reproduce the problem with a small program and send the
- corresponding source to us at zlib@gzip.org . Do not send multi-megabyte
- data files without prior agreement.
-
- 9. Why do I get "undefined reference to gzputc"?
-
- If "make test" produces something like
-
- example.o(.text+0x154): undefined reference to `gzputc'
-
- check that you don't have old files libz.* in /usr/lib, /usr/local/lib or
- /usr/X11R6/lib. Remove any old versions, then do "make install".
-
-10. I need a Delphi interface to zlib.
-
- See the contrib/delphi directory in the zlib distribution.
-
-11. Can zlib handle .zip archives?
-
- Not by itself, no. See the directory contrib/minizip in the zlib
- distribution.
-
-12. Can zlib handle .Z files?
-
- No, sorry. You have to spawn an uncompress or gunzip subprocess, or adapt
- the code of uncompress on your own.
-
-13. How can I make a Unix shared library?
-
- make clean
- ./configure -s
- make
-
-14. How do I install a shared zlib library on Unix?
-
- After the above, then:
-
- make install
-
- However, many flavors of Unix come with a shared zlib already installed.
- Before going to the trouble of compiling a shared version of zlib and
- trying to install it, you may want to check if it's already there! If you
- can #include <zlib.h>, it's there. The -lz option will probably link to
- it. You can check the version at the top of zlib.h or with the
- ZLIB_VERSION symbol defined in zlib.h .
-
-15. I have a question about OttoPDF.
-
- We are not the authors of OttoPDF. The real author is on the OttoPDF web
- site: Joel Hainley, jhainley@myndkryme.com.
-
-16. Can zlib decode Flate data in an Adobe PDF file?
-
- Yes. See http://www.pdflib.com/ . To modify PDF forms, see
- http://sourceforge.net/projects/acroformtool/ .
-
-17. Why am I getting this "register_frame_info not found" error on Solaris?
-
- After installing zlib 1.1.4 on Solaris 2.6, running applications using zlib
- generates an error such as:
-
- ld.so.1: rpm: fatal: relocation error: file /usr/local/lib/libz.so:
- symbol __register_frame_info: referenced symbol not found
-
- The symbol __register_frame_info is not part of zlib, it is generated by
- the C compiler (cc or gcc). You must recompile applications using zlib
- which have this problem. This problem is specific to Solaris. See
- http://www.sunfreeware.com for Solaris versions of zlib and applications
- using zlib.
-
-18. Why does gzip give an error on a file I make with compress/deflate?
-
- The compress and deflate functions produce data in the zlib format, which
- is different and incompatible with the gzip format. The gz* functions in
- zlib on the other hand use the gzip format. Both the zlib and gzip formats
- use the same compressed data format internally, but have different headers
- and trailers around the compressed data.
-
-19. Ok, so why are there two different formats?
-
- The gzip format was designed to retain the directory information about a
- single file, such as the name and last modification date. The zlib format
- on the other hand was designed for in-memory and communication channel
- applications, and has a much more compact header and trailer and uses a
- faster integrity check than gzip.
-
-20. Well that's nice, but how do I make a gzip file in memory?
-
- You can request that deflate write the gzip format instead of the zlib
- format using deflateInit2(). You can also request that inflate decode the
- gzip format using inflateInit2(). Read zlib.h for more details.
-
-21. Is zlib thread-safe?
-
- Yes. However any library routines that zlib uses and any application-
- provided memory allocation routines must also be thread-safe. zlib's gz*
- functions use stdio library routines, and most of zlib's functions use the
- library memory allocation routines by default. zlib's *Init* functions
- allow for the application to provide custom memory allocation routines.
-
- Of course, you should only operate on any given zlib or gzip stream from a
- single thread at a time.
-
-22. Can I use zlib in my commercial application?
-
- Yes. Please read the license in zlib.h.
-
-23. Is zlib under the GNU license?
-
- No. Please read the license in zlib.h.
-
-24. The license says that altered source versions must be "plainly marked". So
- what exactly do I need to do to meet that requirement?
-
- You need to change the ZLIB_VERSION and ZLIB_VERNUM #defines in zlib.h. In
- particular, the final version number needs to be changed to "f", and an
- identification string should be appended to ZLIB_VERSION. Version numbers
- x.x.x.f are reserved for modifications to zlib by others than the zlib
- maintainers. For example, if the version of the base zlib you are altering
- is "1.2.3.4", then in zlib.h you should change ZLIB_VERNUM to 0x123f, and
- ZLIB_VERSION to something like "1.2.3.f-zachary-mods-v3". You can also
- update the version strings in deflate.c and inftrees.c.
-
- For altered source distributions, you should also note the origin and
- nature of the changes in zlib.h, as well as in ChangeLog and README, along
- with the dates of the alterations. The origin should include at least your
- name (or your company's name), and an email address to contact for help or
- issues with the library.
-
- Note that distributing a compiled zlib library along with zlib.h and
- zconf.h is also a source distribution, and so you should change
- ZLIB_VERSION and ZLIB_VERNUM and note the origin and nature of the changes
- in zlib.h as you would for a full source distribution.
-
-25. Will zlib work on a big-endian or little-endian architecture, and can I
- exchange compressed data between them?
-
- Yes and yes.
-
-26. Will zlib work on a 64-bit machine?
-
- Yes. It has been tested on 64-bit machines, and has no dependence on any
- data types being limited to 32-bits in length. If you have any
- difficulties, please provide a complete problem report to zlib@gzip.org
-
-27. Will zlib decompress data from the PKWare Data Compression Library?
-
- No. The PKWare DCL uses a completely different compressed data format than
- does PKZIP and zlib. However, you can look in zlib's contrib/blast
- directory for a possible solution to your problem.
-
-28. Can I access data randomly in a compressed stream?
-
- No, not without some preparation. If when compressing you periodically use
- Z_FULL_FLUSH, carefully write all the pending data at those points, and
- keep an index of those locations, then you can start decompression at those
- points. You have to be careful to not use Z_FULL_FLUSH too often, since it
- can significantly degrade compression. Alternatively, you can scan a
- deflate stream once to generate an index, and then use that index for
- random access. See examples/zran.c .
-
-29. Does zlib work on MVS, OS/390, CICS, etc.?
-
- It has in the past, but we have not heard of any recent evidence. There
- were working ports of zlib 1.1.4 to MVS, but those links no longer work.
- If you know of recent, successful applications of zlib on these operating
- systems, please let us know. Thanks.
-
-30. Is there some simpler, easier to read version of inflate I can look at to
- understand the deflate format?
-
- First off, you should read RFC 1951. Second, yes. Look in zlib's
- contrib/puff directory.
-
-31. Does zlib infringe on any patents?
-
- As far as we know, no. In fact, that was originally the whole point behind
- zlib. Look here for some more information:
-
- http://www.gzip.org/#faq11
-
-32. Can zlib work with greater than 4 GB of data?
-
- Yes. inflate() and deflate() will process any amount of data correctly.
- Each call of inflate() or deflate() is limited to input and output chunks
- of the maximum value that can be stored in the compiler's "unsigned int"
- type, but there is no limit to the number of chunks. Note however that the
- strm.total_in and strm_total_out counters may be limited to 4 GB. These
- counters are provided as a convenience and are not used internally by
- inflate() or deflate(). The application can easily set up its own counters
- updated after each call of inflate() or deflate() to count beyond 4 GB.
- compress() and uncompress() may be limited to 4 GB, since they operate in a
- single call. gzseek() and gztell() may be limited to 4 GB depending on how
- zlib is compiled. See the zlibCompileFlags() function in zlib.h.
-
- The word "may" appears several times above since there is a 4 GB limit only
- if the compiler's "long" type is 32 bits. If the compiler's "long" type is
- 64 bits, then the limit is 16 exabytes.
-
-33. Does zlib have any security vulnerabilities?
-
- The only one that we are aware of is potentially in gzprintf(). If zlib is
- compiled to use sprintf() or vsprintf(), then there is no protection
- against a buffer overflow of an 8K string space (or other value as set by
- gzbuffer()), other than the caller of gzprintf() assuring that the output
- will not exceed 8K. On the other hand, if zlib is compiled to use
- snprintf() or vsnprintf(), which should normally be the case, then there is
- no vulnerability. The ./configure script will display warnings if an
- insecure variation of sprintf() will be used by gzprintf(). Also the
- zlibCompileFlags() function will return information on what variant of
- sprintf() is used by gzprintf().
-
- If you don't have snprintf() or vsnprintf() and would like one, you can
- find a portable implementation here:
-
- http://www.ijs.si/software/snprintf/
-
- Note that you should be using the most recent version of zlib. Versions
- 1.1.3 and before were subject to a double-free vulnerability, and versions
- 1.2.1 and 1.2.2 were subject to an access exception when decompressing
- invalid compressed data.
-
-34. Is there a Java version of zlib?
-
- Probably what you want is to use zlib in Java. zlib is already included
- as part of the Java SDK in the java.util.zip package. If you really want
- a version of zlib written in the Java language, look on the zlib home
- page for links: http://zlib.net/ .
-
-35. I get this or that compiler or source-code scanner warning when I crank it
- up to maximally-pedantic. Can't you guys write proper code?
-
- Many years ago, we gave up attempting to avoid warnings on every compiler
- in the universe. It just got to be a waste of time, and some compilers
- were downright silly as well as contradicted each other. So now, we simply
- make sure that the code always works.
-
-36. Valgrind (or some similar memory access checker) says that deflate is
- performing a conditional jump that depends on an uninitialized value.
- Isn't that a bug?
-
- No. That is intentional for performance reasons, and the output of deflate
- is not affected. This only started showing up recently since zlib 1.2.x
- uses malloc() by default for allocations, whereas earlier versions used
- calloc(), which zeros out the allocated memory. Even though the code was
- correct, versions 1.2.4 and later was changed to not stimulate these
- checkers.
-
-37. Will zlib read the (insert any ancient or arcane format here) compressed
- data format?
-
- Probably not. Look in the comp.compression FAQ for pointers to various
- formats and associated software.
-
-38. How can I encrypt/decrypt zip files with zlib?
-
- zlib doesn't support encryption. The original PKZIP encryption is very
- weak and can be broken with freely available programs. To get strong
- encryption, use GnuPG, http://www.gnupg.org/ , which already includes zlib
- compression. For PKZIP compatible "encryption", look at
- http://www.info-zip.org/
-
-39. What's the difference between the "gzip" and "deflate" HTTP 1.1 encodings?
-
- "gzip" is the gzip format, and "deflate" is the zlib format. They should
- probably have called the second one "zlib" instead to avoid confusion with
- the raw deflate compressed data format. While the HTTP 1.1 RFC 2616
- correctly points to the zlib specification in RFC 1950 for the "deflate"
- transfer encoding, there have been reports of servers and browsers that
- incorrectly produce or expect raw deflate data per the deflate
- specficiation in RFC 1951, most notably Microsoft. So even though the
- "deflate" transfer encoding using the zlib format would be the more
- efficient approach (and in fact exactly what the zlib format was designed
- for), using the "gzip" transfer encoding is probably more reliable due to
- an unfortunate choice of name on the part of the HTTP 1.1 authors.
-
- Bottom line: use the gzip format for HTTP 1.1 encoding.
-
-40. Does zlib support the new "Deflate64" format introduced by PKWare?
-
- No. PKWare has apparently decided to keep that format proprietary, since
- they have not documented it as they have previous compression formats. In
- any case, the compression improvements are so modest compared to other more
- modern approaches, that it's not worth the effort to implement.
-
-41. I'm having a problem with the zip functions in zlib, can you help?
-
- There are no zip functions in zlib. You are probably using minizip by
- Giles Vollant, which is found in the contrib directory of zlib. It is not
- part of zlib. In fact none of the stuff in contrib is part of zlib. The
- files in there are not supported by the zlib authors. You need to contact
- the authors of the respective contribution for help.
-
-42. The match.asm code in contrib is under the GNU General Public License.
- Since it's part of zlib, doesn't that mean that all of zlib falls under the
- GNU GPL?
-
- No. The files in contrib are not part of zlib. They were contributed by
- other authors and are provided as a convenience to the user within the zlib
- distribution. Each item in contrib has its own license.
-
-43. Is zlib subject to export controls? What is its ECCN?
-
- zlib is not subject to export controls, and so is classified as EAR99.
-
-44. Can you please sign these lengthy legal documents and fax them back to us
- so that we can use your software in our product?
-
- No. Go away. Shoo.
diff --git a/src/3rdparty/zlib/INDEX b/src/3rdparty/zlib/INDEX
deleted file mode 100644
index f6c51ca175..0000000000
--- a/src/3rdparty/zlib/INDEX
+++ /dev/null
@@ -1,65 +0,0 @@
-CMakeLists.txt cmake build file
-ChangeLog history of changes
-FAQ Frequently Asked Questions about zlib
-INDEX this file
-Makefile dummy Makefile that tells you to ./configure
-Makefile.in template for Unix Makefile
-README guess what
-configure configure script for Unix
-make_vms.com makefile for VMS
-treebuild.xml XML description of source file dependencies
-zconf.h.cmakein zconf.h template for cmake
-zconf.h.in zconf.h template for configure
-zlib.3 Man page for zlib
-zlib.3.pdf Man page in PDF format
-zlib.map Linux symbol information
-zlib.pc.in Template for pkg-config descriptor
-zlib2ansi perl script to convert source files for C++ compilation
-
-amiga/ makefiles for Amiga SAS C
-doc/ documentation for formats and algorithms
-msdos/ makefiles for MSDOS
-nintendods/ makefile for Nintendo DS
-old/ makefiles for various architectures and zlib documentation
- files that have not yet been updated for zlib 1.2.x
-qnx/ makefiles for QNX
-watcom/ makefiles for OpenWatcom
-win32/ makefiles for Windows
-
- zlib public header files (required for library use):
-zconf.h
-zlib.h
-
- private source files used to build the zlib library:
-adler32.c
-compress.c
-crc32.c
-crc32.h
-deflate.c
-deflate.h
-gzclose.c
-gzguts.h
-gzlib.c
-gzread.c
-gzwrite.c
-infback.c
-inffast.c
-inffast.h
-inffixed.h
-inflate.c
-inflate.h
-inftrees.c
-inftrees.h
-trees.c
-trees.h
-uncompr.c
-zutil.c
-zutil.h
-
- source files for sample programs:
-example.c
-minigzip.c
-See examples/README.examples for more
-
- unsupported contribution by third parties
-See contrib/README.contrib
diff --git a/src/3rdparty/zlib/doc/algorithm.txt b/src/3rdparty/zlib/doc/algorithm.txt
deleted file mode 100644
index 34960bddac..0000000000
--- a/src/3rdparty/zlib/doc/algorithm.txt
+++ /dev/null
@@ -1,209 +0,0 @@
-1. Compression algorithm (deflate)
-
-The deflation algorithm used by gzip (also zip and zlib) is a variation of
-LZ77 (Lempel-Ziv 1977, see reference below). It finds duplicated strings in
-the input data. The second occurrence of a string is replaced by a
-pointer to the previous string, in the form of a pair (distance,
-length). Distances are limited to 32K bytes, and lengths are limited
-to 258 bytes. When a string does not occur anywhere in the previous
-32K bytes, it is emitted as a sequence of literal bytes. (In this
-description, `string' must be taken as an arbitrary sequence of bytes,
-and is not restricted to printable characters.)
-
-Literals or match lengths are compressed with one Huffman tree, and
-match distances are compressed with another tree. The trees are stored
-in a compact form at the start of each block. The blocks can have any
-size (except that the compressed data for one block must fit in
-available memory). A block is terminated when deflate() determines that
-it would be useful to start another block with fresh trees. (This is
-somewhat similar to the behavior of LZW-based _compress_.)
-
-Duplicated strings are found using a hash table. All input strings of
-length 3 are inserted in the hash table. A hash index is computed for
-the next 3 bytes. If the hash chain for this index is not empty, all
-strings in the chain are compared with the current input string, and
-the longest match is selected.
-
-The hash chains are searched starting with the most recent strings, to
-favor small distances and thus take advantage of the Huffman encoding.
-The hash chains are singly linked. There are no deletions from the
-hash chains, the algorithm simply discards matches that are too old.
-
-To avoid a worst-case situation, very long hash chains are arbitrarily
-truncated at a certain length, determined by a runtime option (level
-parameter of deflateInit). So deflate() does not always find the longest
-possible match but generally finds a match which is long enough.
-
-deflate() also defers the selection of matches with a lazy evaluation
-mechanism. After a match of length N has been found, deflate() searches for
-a longer match at the next input byte. If a longer match is found, the
-previous match is truncated to a length of one (thus producing a single
-literal byte) and the process of lazy evaluation begins again. Otherwise,
-the original match is kept, and the next match search is attempted only N
-steps later.
-
-The lazy match evaluation is also subject to a runtime parameter. If
-the current match is long enough, deflate() reduces the search for a longer
-match, thus speeding up the whole process. If compression ratio is more
-important than speed, deflate() attempts a complete second search even if
-the first match is already long enough.
-
-The lazy match evaluation is not performed for the fastest compression
-modes (level parameter 1 to 3). For these fast modes, new strings
-are inserted in the hash table only when no match was found, or
-when the match is not too long. This degrades the compression ratio
-but saves time since there are both fewer insertions and fewer searches.
-
-
-2. Decompression algorithm (inflate)
-
-2.1 Introduction
-
-The key question is how to represent a Huffman code (or any prefix code) so
-that you can decode fast. The most important characteristic is that shorter
-codes are much more common than longer codes, so pay attention to decoding the
-short codes fast, and let the long codes take longer to decode.
-
-inflate() sets up a first level table that covers some number of bits of
-input less than the length of longest code. It gets that many bits from the
-stream, and looks it up in the table. The table will tell if the next
-code is that many bits or less and how many, and if it is, it will tell
-the value, else it will point to the next level table for which inflate()
-grabs more bits and tries to decode a longer code.
-
-How many bits to make the first lookup is a tradeoff between the time it
-takes to decode and the time it takes to build the table. If building the
-table took no time (and if you had infinite memory), then there would only
-be a first level table to cover all the way to the longest code. However,
-building the table ends up taking a lot longer for more bits since short
-codes are replicated many times in such a table. What inflate() does is
-simply to make the number of bits in the first table a variable, and then
-to set that variable for the maximum speed.
-
-For inflate, which has 286 possible codes for the literal/length tree, the size
-of the first table is nine bits. Also the distance trees have 30 possible
-values, and the size of the first table is six bits. Note that for each of
-those cases, the table ended up one bit longer than the ``average'' code
-length, i.e. the code length of an approximately flat code which would be a
-little more than eight bits for 286 symbols and a little less than five bits
-for 30 symbols.
-
-
-2.2 More details on the inflate table lookup
-
-Ok, you want to know what this cleverly obfuscated inflate tree actually
-looks like. You are correct that it's not a Huffman tree. It is simply a
-lookup table for the first, let's say, nine bits of a Huffman symbol. The
-symbol could be as short as one bit or as long as 15 bits. If a particular
-symbol is shorter than nine bits, then that symbol's translation is duplicated
-in all those entries that start with that symbol's bits. For example, if the
-symbol is four bits, then it's duplicated 32 times in a nine-bit table. If a
-symbol is nine bits long, it appears in the table once.
-
-If the symbol is longer than nine bits, then that entry in the table points
-to another similar table for the remaining bits. Again, there are duplicated
-entries as needed. The idea is that most of the time the symbol will be short
-and there will only be one table look up. (That's whole idea behind data
-compression in the first place.) For the less frequent long symbols, there
-will be two lookups. If you had a compression method with really long
-symbols, you could have as many levels of lookups as is efficient. For
-inflate, two is enough.
-
-So a table entry either points to another table (in which case nine bits in
-the above example are gobbled), or it contains the translation for the symbol
-and the number of bits to gobble. Then you start again with the next
-ungobbled bit.
-
-You may wonder: why not just have one lookup table for how ever many bits the
-longest symbol is? The reason is that if you do that, you end up spending
-more time filling in duplicate symbol entries than you do actually decoding.
-At least for deflate's output that generates new trees every several 10's of
-kbytes. You can imagine that filling in a 2^15 entry table for a 15-bit code
-would take too long if you're only decoding several thousand symbols. At the
-other extreme, you could make a new table for every bit in the code. In fact,
-that's essentially a Huffman tree. But then you spend too much time
-traversing the tree while decoding, even for short symbols.
-
-So the number of bits for the first lookup table is a trade of the time to
-fill out the table vs. the time spent looking at the second level and above of
-the table.
-
-Here is an example, scaled down:
-
-The code being decoded, with 10 symbols, from 1 to 6 bits long:
-
-A: 0
-B: 10
-C: 1100
-D: 11010
-E: 11011
-F: 11100
-G: 11101
-H: 11110
-I: 111110
-J: 111111
-
-Let's make the first table three bits long (eight entries):
-
-000: A,1
-001: A,1
-010: A,1
-011: A,1
-100: B,2
-101: B,2
-110: -> table X (gobble 3 bits)
-111: -> table Y (gobble 3 bits)
-
-Each entry is what the bits decode as and how many bits that is, i.e. how
-many bits to gobble. Or the entry points to another table, with the number of
-bits to gobble implicit in the size of the table.
-
-Table X is two bits long since the longest code starting with 110 is five bits
-long:
-
-00: C,1
-01: C,1
-10: D,2
-11: E,2
-
-Table Y is three bits long since the longest code starting with 111 is six
-bits long:
-
-000: F,2
-001: F,2
-010: G,2
-011: G,2
-100: H,2
-101: H,2
-110: I,3
-111: J,3
-
-So what we have here are three tables with a total of 20 entries that had to
-be constructed. That's compared to 64 entries for a single table. Or
-compared to 16 entries for a Huffman tree (six two entry tables and one four
-entry table). Assuming that the code ideally represents the probability of
-the symbols, it takes on the average 1.25 lookups per symbol. That's compared
-to one lookup for the single table, or 1.66 lookups per symbol for the
-Huffman tree.
-
-There, I think that gives you a picture of what's going on. For inflate, the
-meaning of a particular symbol is often more than just a letter. It can be a
-byte (a "literal"), or it can be either a length or a distance which
-indicates a base value and a number of bits to fetch after the code that is
-added to the base value. Or it might be the special end-of-block code. The
-data structures created in inftrees.c try to encode all that information
-compactly in the tables.
-
-
-Jean-loup Gailly Mark Adler
-jloup@gzip.org madler@alumni.caltech.edu
-
-
-References:
-
-[LZ77] Ziv J., Lempel A., ``A Universal Algorithm for Sequential Data
-Compression,'' IEEE Transactions on Information Theory, Vol. 23, No. 3,
-pp. 337-343.
-
-``DEFLATE Compressed Data Format Specification'' available in
-http://www.ietf.org/rfc/rfc1951.txt
diff --git a/src/3rdparty/zlib/doc/rfc1950.txt b/src/3rdparty/zlib/doc/rfc1950.txt
deleted file mode 100644
index ce6428a0f2..0000000000
--- a/src/3rdparty/zlib/doc/rfc1950.txt
+++ /dev/null
@@ -1,619 +0,0 @@
-
-
-
-
-
-
-Network Working Group P. Deutsch
-Request for Comments: 1950 Aladdin Enterprises
-Category: Informational J-L. Gailly
- Info-ZIP
- May 1996
-
-
- ZLIB Compressed Data Format Specification version 3.3
-
-Status of This Memo
-
- This memo provides information for the Internet community. This memo
- does not specify an Internet standard of any kind. Distribution of
- this memo is unlimited.
-
-IESG Note:
-
- The IESG takes no position on the validity of any Intellectual
- Property Rights statements contained in this document.
-
-Notices
-
- Copyright (c) 1996 L. Peter Deutsch and Jean-Loup Gailly
-
- Permission is granted to copy and distribute this document for any
- purpose and without charge, including translations into other
- languages and incorporation into compilations, provided that the
- copyright notice and this notice are preserved, and that any
- substantive changes or deletions from the original are clearly
- marked.
-
- A pointer to the latest version of this and related documentation in
- HTML format can be found at the URL
- <ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html>.
-
-Abstract
-
- This specification defines a lossless compressed data format. The
- data can be produced or consumed, even for an arbitrarily long
- sequentially presented input data stream, using only an a priori
- bounded amount of intermediate storage. The format presently uses
- the DEFLATE compression method but can be easily extended to use
- other compression methods. It can be implemented readily in a manner
- not covered by patents. This specification also defines the ADLER-32
- checksum (an extension and improvement of the Fletcher checksum),
- used for detection of data corruption, and provides an algorithm for
- computing it.
-
-
-
-
-Deutsch & Gailly Informational [Page 1]
-
-RFC 1950 ZLIB Compressed Data Format Specification May 1996
-
-
-Table of Contents
-
- 1. Introduction ................................................... 2
- 1.1. Purpose ................................................... 2
- 1.2. Intended audience ......................................... 3
- 1.3. Scope ..................................................... 3
- 1.4. Compliance ................................................ 3
- 1.5. Definitions of terms and conventions used ................ 3
- 1.6. Changes from previous versions ............................ 3
- 2. Detailed specification ......................................... 3
- 2.1. Overall conventions ....................................... 3
- 2.2. Data format ............................................... 4
- 2.3. Compliance ................................................ 7
- 3. References ..................................................... 7
- 4. Source code .................................................... 8
- 5. Security Considerations ........................................ 8
- 6. Acknowledgements ............................................... 8
- 7. Authors' Addresses ............................................. 8
- 8. Appendix: Rationale ............................................ 9
- 9. Appendix: Sample code ..........................................10
-
-1. Introduction
-
- 1.1. Purpose
-
- The purpose of this specification is to define a lossless
- compressed data format that:
-
- * Is independent of CPU type, operating system, file system,
- and character set, and hence can be used for interchange;
-
- * Can be produced or consumed, even for an arbitrarily long
- sequentially presented input data stream, using only an a
- priori bounded amount of intermediate storage, and hence can
- be used in data communications or similar structures such as
- Unix filters;
-
- * Can use a number of different compression methods;
-
- * Can be implemented readily in a manner not covered by
- patents, and hence can be practiced freely.
-
- The data format defined by this specification does not attempt to
- allow random access to compressed data.
-
-
-
-
-
-
-
-Deutsch & Gailly Informational [Page 2]
-
-RFC 1950 ZLIB Compressed Data Format Specification May 1996
-
-
- 1.2. Intended audience
-
- This specification is intended for use by implementors of software
- to compress data into zlib format and/or decompress data from zlib
- format.
-
- The text of the specification assumes a basic background in
- programming at the level of bits and other primitive data
- representations.
-
- 1.3. Scope
-
- The specification specifies a compressed data format that can be
- used for in-memory compression of a sequence of arbitrary bytes.
-
- 1.4. Compliance
-
- Unless otherwise indicated below, a compliant decompressor must be
- able to accept and decompress any data set that conforms to all
- the specifications presented here; a compliant compressor must
- produce data sets that conform to all the specifications presented
- here.
-
- 1.5. Definitions of terms and conventions used
-
- byte: 8 bits stored or transmitted as a unit (same as an octet).
- (For this specification, a byte is exactly 8 bits, even on
- machines which store a character on a number of bits different
- from 8.) See below, for the numbering of bits within a byte.
-
- 1.6. Changes from previous versions
-
- Version 3.1 was the first public release of this specification.
- In version 3.2, some terminology was changed and the Adler-32
- sample code was rewritten for clarity. In version 3.3, the
- support for a preset dictionary was introduced, and the
- specification was converted to RFC style.
-
-2. Detailed specification
-
- 2.1. Overall conventions
-
- In the diagrams below, a box like this:
-
- +---+
- | | <-- the vertical bars might be missing
- +---+
-
-
-
-
-Deutsch & Gailly Informational [Page 3]
-
-RFC 1950 ZLIB Compressed Data Format Specification May 1996
-
-
- represents one byte; a box like this:
-
- +==============+
- | |
- +==============+
-
- represents a variable number of bytes.
-
- Bytes stored within a computer do not have a "bit order", since
- they are always treated as a unit. However, a byte considered as
- an integer between 0 and 255 does have a most- and least-
- significant bit, and since we write numbers with the most-
- significant digit on the left, we also write bytes with the most-
- significant bit on the left. In the diagrams below, we number the
- bits of a byte so that bit 0 is the least-significant bit, i.e.,
- the bits are numbered:
-
- +--------+
- |76543210|
- +--------+
-
- Within a computer, a number may occupy multiple bytes. All
- multi-byte numbers in the format described here are stored with
- the MOST-significant byte first (at the lower memory address).
- For example, the decimal number 520 is stored as:
-
- 0 1
- +--------+--------+
- |00000010|00001000|
- +--------+--------+
- ^ ^
- | |
- | + less significant byte = 8
- + more significant byte = 2 x 256
-
- 2.2. Data format
-
- A zlib stream has the following structure:
-
- 0 1
- +---+---+
- |CMF|FLG| (more-->)
- +---+---+
-
-
-
-
-
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-RFC 1950 ZLIB Compressed Data Format Specification May 1996
-
-
- (if FLG.FDICT set)
-
- 0 1 2 3
- +---+---+---+---+
- | DICTID | (more-->)
- +---+---+---+---+
-
- +=====================+---+---+---+---+
- |...compressed data...| ADLER32 |
- +=====================+---+---+---+---+
-
- Any data which may appear after ADLER32 are not part of the zlib
- stream.
-
- CMF (Compression Method and flags)
- This byte is divided into a 4-bit compression method and a 4-
- bit information field depending on the compression method.
-
- bits 0 to 3 CM Compression method
- bits 4 to 7 CINFO Compression info
-
- CM (Compression method)
- This identifies the compression method used in the file. CM = 8
- denotes the "deflate" compression method with a window size up
- to 32K. This is the method used by gzip and PNG (see
- references [1] and [2] in Chapter 3, below, for the reference
- documents). CM = 15 is reserved. It might be used in a future
- version of this specification to indicate the presence of an
- extra field before the compressed data.
-
- CINFO (Compression info)
- For CM = 8, CINFO is the base-2 logarithm of the LZ77 window
- size, minus eight (CINFO=7 indicates a 32K window size). Values
- of CINFO above 7 are not allowed in this version of the
- specification. CINFO is not defined in this specification for
- CM not equal to 8.
-
- FLG (FLaGs)
- This flag byte is divided as follows:
-
- bits 0 to 4 FCHECK (check bits for CMF and FLG)
- bit 5 FDICT (preset dictionary)
- bits 6 to 7 FLEVEL (compression level)
-
- The FCHECK value must be such that CMF and FLG, when viewed as
- a 16-bit unsigned integer stored in MSB order (CMF*256 + FLG),
- is a multiple of 31.
-
-
-
-
-Deutsch & Gailly Informational [Page 5]
-
-RFC 1950 ZLIB Compressed Data Format Specification May 1996
-
-
- FDICT (Preset dictionary)
- If FDICT is set, a DICT dictionary identifier is present
- immediately after the FLG byte. The dictionary is a sequence of
- bytes which are initially fed to the compressor without
- producing any compressed output. DICT is the Adler-32 checksum
- of this sequence of bytes (see the definition of ADLER32
- below). The decompressor can use this identifier to determine
- which dictionary has been used by the compressor.
-
- FLEVEL (Compression level)
- These flags are available for use by specific compression
- methods. The "deflate" method (CM = 8) sets these flags as
- follows:
-
- 0 - compressor used fastest algorithm
- 1 - compressor used fast algorithm
- 2 - compressor used default algorithm
- 3 - compressor used maximum compression, slowest algorithm
-
- The information in FLEVEL is not needed for decompression; it
- is there to indicate if recompression might be worthwhile.
-
- compressed data
- For compression method 8, the compressed data is stored in the
- deflate compressed data format as described in the document
- "DEFLATE Compressed Data Format Specification" by L. Peter
- Deutsch. (See reference [3] in Chapter 3, below)
-
- Other compressed data formats are not specified in this version
- of the zlib specification.
-
- ADLER32 (Adler-32 checksum)
- This contains a checksum value of the uncompressed data
- (excluding any dictionary data) computed according to Adler-32
- algorithm. This algorithm is a 32-bit extension and improvement
- of the Fletcher algorithm, used in the ITU-T X.224 / ISO 8073
- standard. See references [4] and [5] in Chapter 3, below)
-
- Adler-32 is composed of two sums accumulated per byte: s1 is
- the sum of all bytes, s2 is the sum of all s1 values. Both sums
- are done modulo 65521. s1 is initialized to 1, s2 to zero. The
- Adler-32 checksum is stored as s2*65536 + s1 in most-
- significant-byte first (network) order.
-
-
-
-
-
-
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-RFC 1950 ZLIB Compressed Data Format Specification May 1996
-
-
- 2.3. Compliance
-
- A compliant compressor must produce streams with correct CMF, FLG
- and ADLER32, but need not support preset dictionaries. When the
- zlib data format is used as part of another standard data format,
- the compressor may use only preset dictionaries that are specified
- by this other data format. If this other format does not use the
- preset dictionary feature, the compressor must not set the FDICT
- flag.
-
- A compliant decompressor must check CMF, FLG, and ADLER32, and
- provide an error indication if any of these have incorrect values.
- A compliant decompressor must give an error indication if CM is
- not one of the values defined in this specification (only the
- value 8 is permitted in this version), since another value could
- indicate the presence of new features that would cause subsequent
- data to be interpreted incorrectly. A compliant decompressor must
- give an error indication if FDICT is set and DICTID is not the
- identifier of a known preset dictionary. A decompressor may
- ignore FLEVEL and still be compliant. When the zlib data format
- is being used as a part of another standard format, a compliant
- decompressor must support all the preset dictionaries specified by
- the other format. When the other format does not use the preset
- dictionary feature, a compliant decompressor must reject any
- stream in which the FDICT flag is set.
-
-3. References
-
- [1] Deutsch, L.P.,"GZIP Compressed Data Format Specification",
- available in ftp://ftp.uu.net/pub/archiving/zip/doc/
-
- [2] Thomas Boutell, "PNG (Portable Network Graphics) specification",
- available in ftp://ftp.uu.net/graphics/png/documents/
-
- [3] Deutsch, L.P.,"DEFLATE Compressed Data Format Specification",
- available in ftp://ftp.uu.net/pub/archiving/zip/doc/
-
- [4] Fletcher, J. G., "An Arithmetic Checksum for Serial
- Transmissions," IEEE Transactions on Communications, Vol. COM-30,
- No. 1, January 1982, pp. 247-252.
-
- [5] ITU-T Recommendation X.224, Annex D, "Checksum Algorithms,"
- November, 1993, pp. 144, 145. (Available from
- gopher://info.itu.ch). ITU-T X.244 is also the same as ISO 8073.
-
-
-
-
-
-
-
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-
-RFC 1950 ZLIB Compressed Data Format Specification May 1996
-
-
-4. Source code
-
- Source code for a C language implementation of a "zlib" compliant
- library is available at ftp://ftp.uu.net/pub/archiving/zip/zlib/.
-
-5. Security Considerations
-
- A decoder that fails to check the ADLER32 checksum value may be
- subject to undetected data corruption.
-
-6. Acknowledgements
-
- Trademarks cited in this document are the property of their
- respective owners.
-
- Jean-Loup Gailly and Mark Adler designed the zlib format and wrote
- the related software described in this specification. Glenn
- Randers-Pehrson converted this document to RFC and HTML format.
-
-7. Authors' Addresses
-
- L. Peter Deutsch
- Aladdin Enterprises
- 203 Santa Margarita Ave.
- Menlo Park, CA 94025
-
- Phone: (415) 322-0103 (AM only)
- FAX: (415) 322-1734
- EMail: <ghost@aladdin.com>
-
-
- Jean-Loup Gailly
-
- EMail: <gzip@prep.ai.mit.edu>
-
- Questions about the technical content of this specification can be
- sent by email to
-
- Jean-Loup Gailly <gzip@prep.ai.mit.edu> and
- Mark Adler <madler@alumni.caltech.edu>
-
- Editorial comments on this specification can be sent by email to
-
- L. Peter Deutsch <ghost@aladdin.com> and
- Glenn Randers-Pehrson <randeg@alumni.rpi.edu>
-
-
-
-
-
-
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-
-RFC 1950 ZLIB Compressed Data Format Specification May 1996
-
-
-8. Appendix: Rationale
-
- 8.1. Preset dictionaries
-
- A preset dictionary is specially useful to compress short input
- sequences. The compressor can take advantage of the dictionary
- context to encode the input in a more compact manner. The
- decompressor can be initialized with the appropriate context by
- virtually decompressing a compressed version of the dictionary
- without producing any output. However for certain compression
- algorithms such as the deflate algorithm this operation can be
- achieved without actually performing any decompression.
-
- The compressor and the decompressor must use exactly the same
- dictionary. The dictionary may be fixed or may be chosen among a
- certain number of predefined dictionaries, according to the kind
- of input data. The decompressor can determine which dictionary has
- been chosen by the compressor by checking the dictionary
- identifier. This document does not specify the contents of
- predefined dictionaries, since the optimal dictionaries are
- application specific. Standard data formats using this feature of
- the zlib specification must precisely define the allowed
- dictionaries.
-
- 8.2. The Adler-32 algorithm
-
- The Adler-32 algorithm is much faster than the CRC32 algorithm yet
- still provides an extremely low probability of undetected errors.
-
- The modulo on unsigned long accumulators can be delayed for 5552
- bytes, so the modulo operation time is negligible. If the bytes
- are a, b, c, the second sum is 3a + 2b + c + 3, and so is position
- and order sensitive, unlike the first sum, which is just a
- checksum. That 65521 is prime is important to avoid a possible
- large class of two-byte errors that leave the check unchanged.
- (The Fletcher checksum uses 255, which is not prime and which also
- makes the Fletcher check insensitive to single byte changes 0 <->
- 255.)
-
- The sum s1 is initialized to 1 instead of zero to make the length
- of the sequence part of s2, so that the length does not have to be
- checked separately. (Any sequence of zeroes has a Fletcher
- checksum of zero.)
-
-
-
-
-
-
-
-
-Deutsch & Gailly Informational [Page 9]
-
-RFC 1950 ZLIB Compressed Data Format Specification May 1996
-
-
-9. Appendix: Sample code
-
- The following C code computes the Adler-32 checksum of a data buffer.
- It is written for clarity, not for speed. The sample code is in the
- ANSI C programming language. Non C users may find it easier to read
- with these hints:
-
- & Bitwise AND operator.
- >> Bitwise right shift operator. When applied to an
- unsigned quantity, as here, right shift inserts zero bit(s)
- at the left.
- << Bitwise left shift operator. Left shift inserts zero
- bit(s) at the right.
- ++ "n++" increments the variable n.
- % modulo operator: a % b is the remainder of a divided by b.
-
- #define BASE 65521 /* largest prime smaller than 65536 */
-
- /*
- Update a running Adler-32 checksum with the bytes buf[0..len-1]
- and return the updated checksum. The Adler-32 checksum should be
- initialized to 1.
-
- Usage example:
-
- unsigned long adler = 1L;
-
- while (read_buffer(buffer, length) != EOF) {
- adler = update_adler32(adler, buffer, length);
- }
- if (adler != original_adler) error();
- */
- unsigned long update_adler32(unsigned long adler,
- unsigned char *buf, int len)
- {
- unsigned long s1 = adler & 0xffff;
- unsigned long s2 = (adler >> 16) & 0xffff;
- int n;
-
- for (n = 0; n < len; n++) {
- s1 = (s1 + buf[n]) % BASE;
- s2 = (s2 + s1) % BASE;
- }
- return (s2 << 16) + s1;
- }
-
- /* Return the adler32 of the bytes buf[0..len-1] */
-
-
-
-
-Deutsch & Gailly Informational [Page 10]
-
-RFC 1950 ZLIB Compressed Data Format Specification May 1996
-
-
- unsigned long adler32(unsigned char *buf, int len)
- {
- return update_adler32(1L, buf, len);
- }
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
diff --git a/src/3rdparty/zlib/doc/rfc1951.txt b/src/3rdparty/zlib/doc/rfc1951.txt
deleted file mode 100644
index 403c8c722f..0000000000
--- a/src/3rdparty/zlib/doc/rfc1951.txt
+++ /dev/null
@@ -1,955 +0,0 @@
-
-
-
-
-
-
-Network Working Group P. Deutsch
-Request for Comments: 1951 Aladdin Enterprises
-Category: Informational May 1996
-
-
- DEFLATE Compressed Data Format Specification version 1.3
-
-Status of This Memo
-
- This memo provides information for the Internet community. This memo
- does not specify an Internet standard of any kind. Distribution of
- this memo is unlimited.
-
-IESG Note:
-
- The IESG takes no position on the validity of any Intellectual
- Property Rights statements contained in this document.
-
-Notices
-
- Copyright (c) 1996 L. Peter Deutsch
-
- Permission is granted to copy and distribute this document for any
- purpose and without charge, including translations into other
- languages and incorporation into compilations, provided that the
- copyright notice and this notice are preserved, and that any
- substantive changes or deletions from the original are clearly
- marked.
-
- A pointer to the latest version of this and related documentation in
- HTML format can be found at the URL
- <ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html>.
-
-Abstract
-
- This specification defines a lossless compressed data format that
- compresses data using a combination of the LZ77 algorithm and Huffman
- coding, with efficiency comparable to the best currently available
- general-purpose compression methods. The data can be produced or
- consumed, even for an arbitrarily long sequentially presented input
- data stream, using only an a priori bounded amount of intermediate
- storage. The format can be implemented readily in a manner not
- covered by patents.
-
-
-
-
-
-
-
-
-Deutsch Informational [Page 1]
-
-RFC 1951 DEFLATE Compressed Data Format Specification May 1996
-
-
-Table of Contents
-
- 1. Introduction ................................................... 2
- 1.1. Purpose ................................................... 2
- 1.2. Intended audience ......................................... 3
- 1.3. Scope ..................................................... 3
- 1.4. Compliance ................................................ 3
- 1.5. Definitions of terms and conventions used ................ 3
- 1.6. Changes from previous versions ............................ 4
- 2. Compressed representation overview ............................. 4
- 3. Detailed specification ......................................... 5
- 3.1. Overall conventions ....................................... 5
- 3.1.1. Packing into bytes .................................. 5
- 3.2. Compressed block format ................................... 6
- 3.2.1. Synopsis of prefix and Huffman coding ............... 6
- 3.2.2. Use of Huffman coding in the "deflate" format ....... 7
- 3.2.3. Details of block format ............................. 9
- 3.2.4. Non-compressed blocks (BTYPE=00) ................... 11
- 3.2.5. Compressed blocks (length and distance codes) ...... 11
- 3.2.6. Compression with fixed Huffman codes (BTYPE=01) .... 12
- 3.2.7. Compression with dynamic Huffman codes (BTYPE=10) .. 13
- 3.3. Compliance ............................................... 14
- 4. Compression algorithm details ................................. 14
- 5. References .................................................... 16
- 6. Security Considerations ....................................... 16
- 7. Source code ................................................... 16
- 8. Acknowledgements .............................................. 16
- 9. Author's Address .............................................. 17
-
-1. Introduction
-
- 1.1. Purpose
-
- The purpose of this specification is to define a lossless
- compressed data format that:
- * Is independent of CPU type, operating system, file system,
- and character set, and hence can be used for interchange;
- * Can be produced or consumed, even for an arbitrarily long
- sequentially presented input data stream, using only an a
- priori bounded amount of intermediate storage, and hence
- can be used in data communications or similar structures
- such as Unix filters;
- * Compresses data with efficiency comparable to the best
- currently available general-purpose compression methods,
- and in particular considerably better than the "compress"
- program;
- * Can be implemented readily in a manner not covered by
- patents, and hence can be practiced freely;
-
-
-
-Deutsch Informational [Page 2]
-
-RFC 1951 DEFLATE Compressed Data Format Specification May 1996
-
-
- * Is compatible with the file format produced by the current
- widely used gzip utility, in that conforming decompressors
- will be able to read data produced by the existing gzip
- compressor.
-
- The data format defined by this specification does not attempt to:
-
- * Allow random access to compressed data;
- * Compress specialized data (e.g., raster graphics) as well
- as the best currently available specialized algorithms.
-
- A simple counting argument shows that no lossless compression
- algorithm can compress every possible input data set. For the
- format defined here, the worst case expansion is 5 bytes per 32K-
- byte block, i.e., a size increase of 0.015% for large data sets.
- English text usually compresses by a factor of 2.5 to 3;
- executable files usually compress somewhat less; graphical data
- such as raster images may compress much more.
-
- 1.2. Intended audience
-
- This specification is intended for use by implementors of software
- to compress data into "deflate" format and/or decompress data from
- "deflate" format.
-
- The text of the specification assumes a basic background in
- programming at the level of bits and other primitive data
- representations. Familiarity with the technique of Huffman coding
- is helpful but not required.
-
- 1.3. Scope
-
- The specification specifies a method for representing a sequence
- of bytes as a (usually shorter) sequence of bits, and a method for
- packing the latter bit sequence into bytes.
-
- 1.4. Compliance
-
- Unless otherwise indicated below, a compliant decompressor must be
- able to accept and decompress any data set that conforms to all
- the specifications presented here; a compliant compressor must
- produce data sets that conform to all the specifications presented
- here.
-
- 1.5. Definitions of terms and conventions used
-
- Byte: 8 bits stored or transmitted as a unit (same as an octet).
- For this specification, a byte is exactly 8 bits, even on machines
-
-
-
-Deutsch Informational [Page 3]
-
-RFC 1951 DEFLATE Compressed Data Format Specification May 1996
-
-
- which store a character on a number of bits different from eight.
- See below, for the numbering of bits within a byte.
-
- String: a sequence of arbitrary bytes.
-
- 1.6. Changes from previous versions
-
- There have been no technical changes to the deflate format since
- version 1.1 of this specification. In version 1.2, some
- terminology was changed. Version 1.3 is a conversion of the
- specification to RFC style.
-
-2. Compressed representation overview
-
- A compressed data set consists of a series of blocks, corresponding
- to successive blocks of input data. The block sizes are arbitrary,
- except that non-compressible blocks are limited to 65,535 bytes.
-
- Each block is compressed using a combination of the LZ77 algorithm
- and Huffman coding. The Huffman trees for each block are independent
- of those for previous or subsequent blocks; the LZ77 algorithm may
- use a reference to a duplicated string occurring in a previous block,
- up to 32K input bytes before.
-
- Each block consists of two parts: a pair of Huffman code trees that
- describe the representation of the compressed data part, and a
- compressed data part. (The Huffman trees themselves are compressed
- using Huffman encoding.) The compressed data consists of a series of
- elements of two types: literal bytes (of strings that have not been
- detected as duplicated within the previous 32K input bytes), and
- pointers to duplicated strings, where a pointer is represented as a
- pair <length, backward distance>. The representation used in the
- "deflate" format limits distances to 32K bytes and lengths to 258
- bytes, but does not limit the size of a block, except for
- uncompressible blocks, which are limited as noted above.
-
- Each type of value (literals, distances, and lengths) in the
- compressed data is represented using a Huffman code, using one code
- tree for literals and lengths and a separate code tree for distances.
- The code trees for each block appear in a compact form just before
- the compressed data for that block.
-
-
-
-
-
-
-
-
-
-
-Deutsch Informational [Page 4]
-
-RFC 1951 DEFLATE Compressed Data Format Specification May 1996
-
-
-3. Detailed specification
-
- 3.1. Overall conventions In the diagrams below, a box like this:
-
- +---+
- | | <-- the vertical bars might be missing
- +---+
-
- represents one byte; a box like this:
-
- +==============+
- | |
- +==============+
-
- represents a variable number of bytes.
-
- Bytes stored within a computer do not have a "bit order", since
- they are always treated as a unit. However, a byte considered as
- an integer between 0 and 255 does have a most- and least-
- significant bit, and since we write numbers with the most-
- significant digit on the left, we also write bytes with the most-
- significant bit on the left. In the diagrams below, we number the
- bits of a byte so that bit 0 is the least-significant bit, i.e.,
- the bits are numbered:
-
- +--------+
- |76543210|
- +--------+
-
- Within a computer, a number may occupy multiple bytes. All
- multi-byte numbers in the format described here are stored with
- the least-significant byte first (at the lower memory address).
- For example, the decimal number 520 is stored as:
-
- 0 1
- +--------+--------+
- |00001000|00000010|
- +--------+--------+
- ^ ^
- | |
- | + more significant byte = 2 x 256
- + less significant byte = 8
-
- 3.1.1. Packing into bytes
-
- This document does not address the issue of the order in which
- bits of a byte are transmitted on a bit-sequential medium,
- since the final data format described here is byte- rather than
-
-
-
-Deutsch Informational [Page 5]
-
-RFC 1951 DEFLATE Compressed Data Format Specification May 1996
-
-
- bit-oriented. However, we describe the compressed block format
- in below, as a sequence of data elements of various bit
- lengths, not a sequence of bytes. We must therefore specify
- how to pack these data elements into bytes to form the final
- compressed byte sequence:
-
- * Data elements are packed into bytes in order of
- increasing bit number within the byte, i.e., starting
- with the least-significant bit of the byte.
- * Data elements other than Huffman codes are packed
- starting with the least-significant bit of the data
- element.
- * Huffman codes are packed starting with the most-
- significant bit of the code.
-
- In other words, if one were to print out the compressed data as
- a sequence of bytes, starting with the first byte at the
- *right* margin and proceeding to the *left*, with the most-
- significant bit of each byte on the left as usual, one would be
- able to parse the result from right to left, with fixed-width
- elements in the correct MSB-to-LSB order and Huffman codes in
- bit-reversed order (i.e., with the first bit of the code in the
- relative LSB position).
-
- 3.2. Compressed block format
-
- 3.2.1. Synopsis of prefix and Huffman coding
-
- Prefix coding represents symbols from an a priori known
- alphabet by bit sequences (codes), one code for each symbol, in
- a manner such that different symbols may be represented by bit
- sequences of different lengths, but a parser can always parse
- an encoded string unambiguously symbol-by-symbol.
-
- We define a prefix code in terms of a binary tree in which the
- two edges descending from each non-leaf node are labeled 0 and
- 1 and in which the leaf nodes correspond one-for-one with (are
- labeled with) the symbols of the alphabet; then the code for a
- symbol is the sequence of 0's and 1's on the edges leading from
- the root to the leaf labeled with that symbol. For example:
-
-
-
-
-
-
-
-
-
-
-
-Deutsch Informational [Page 6]
-
-RFC 1951 DEFLATE Compressed Data Format Specification May 1996
-
-
- /\ Symbol Code
- 0 1 ------ ----
- / \ A 00
- /\ B B 1
- 0 1 C 011
- / \ D 010
- A /\
- 0 1
- / \
- D C
-
- A parser can decode the next symbol from an encoded input
- stream by walking down the tree from the root, at each step
- choosing the edge corresponding to the next input bit.
-
- Given an alphabet with known symbol frequencies, the Huffman
- algorithm allows the construction of an optimal prefix code
- (one which represents strings with those symbol frequencies
- using the fewest bits of any possible prefix codes for that
- alphabet). Such a code is called a Huffman code. (See
- reference [1] in Chapter 5, references for additional
- information on Huffman codes.)
-
- Note that in the "deflate" format, the Huffman codes for the
- various alphabets must not exceed certain maximum code lengths.
- This constraint complicates the algorithm for computing code
- lengths from symbol frequencies. Again, see Chapter 5,
- references for details.
-
- 3.2.2. Use of Huffman coding in the "deflate" format
-
- The Huffman codes used for each alphabet in the "deflate"
- format have two additional rules:
-
- * All codes of a given bit length have lexicographically
- consecutive values, in the same order as the symbols
- they represent;
-
- * Shorter codes lexicographically precede longer codes.
-
-
-
-
-
-
-
-
-
-
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-Deutsch Informational [Page 7]
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-RFC 1951 DEFLATE Compressed Data Format Specification May 1996
-
-
- We could recode the example above to follow this rule as
- follows, assuming that the order of the alphabet is ABCD:
-
- Symbol Code
- ------ ----
- A 10
- B 0
- C 110
- D 111
-
- I.e., 0 precedes 10 which precedes 11x, and 110 and 111 are
- lexicographically consecutive.
-
- Given this rule, we can define the Huffman code for an alphabet
- just by giving the bit lengths of the codes for each symbol of
- the alphabet in order; this is sufficient to determine the
- actual codes. In our example, the code is completely defined
- by the sequence of bit lengths (2, 1, 3, 3). The following
- algorithm generates the codes as integers, intended to be read
- from most- to least-significant bit. The code lengths are
- initially in tree[I].Len; the codes are produced in
- tree[I].Code.
-
- 1) Count the number of codes for each code length. Let
- bl_count[N] be the number of codes of length N, N >= 1.
-
- 2) Find the numerical value of the smallest code for each
- code length:
-
- code = 0;
- bl_count[0] = 0;
- for (bits = 1; bits <= MAX_BITS; bits++) {
- code = (code + bl_count[bits-1]) << 1;
- next_code[bits] = code;
- }
-
- 3) Assign numerical values to all codes, using consecutive
- values for all codes of the same length with the base
- values determined at step 2. Codes that are never used
- (which have a bit length of zero) must not be assigned a
- value.
-
- for (n = 0; n <= max_code; n++) {
- len = tree[n].Len;
- if (len != 0) {
- tree[n].Code = next_code[len];
- next_code[len]++;
- }
-
-
-
-Deutsch Informational [Page 8]
-
-RFC 1951 DEFLATE Compressed Data Format Specification May 1996
-
-
- }
-
- Example:
-
- Consider the alphabet ABCDEFGH, with bit lengths (3, 3, 3, 3,
- 3, 2, 4, 4). After step 1, we have:
-
- N bl_count[N]
- - -----------
- 2 1
- 3 5
- 4 2
-
- Step 2 computes the following next_code values:
-
- N next_code[N]
- - ------------
- 1 0
- 2 0
- 3 2
- 4 14
-
- Step 3 produces the following code values:
-
- Symbol Length Code
- ------ ------ ----
- A 3 010
- B 3 011
- C 3 100
- D 3 101
- E 3 110
- F 2 00
- G 4 1110
- H 4 1111
-
- 3.2.3. Details of block format
-
- Each block of compressed data begins with 3 header bits
- containing the following data:
-
- first bit BFINAL
- next 2 bits BTYPE
-
- Note that the header bits do not necessarily begin on a byte
- boundary, since a block does not necessarily occupy an integral
- number of bytes.
-
-
-
-
-
-Deutsch Informational [Page 9]
-
-RFC 1951 DEFLATE Compressed Data Format Specification May 1996
-
-
- BFINAL is set if and only if this is the last block of the data
- set.
-
- BTYPE specifies how the data are compressed, as follows:
-
- 00 - no compression
- 01 - compressed with fixed Huffman codes
- 10 - compressed with dynamic Huffman codes
- 11 - reserved (error)
-
- The only difference between the two compressed cases is how the
- Huffman codes for the literal/length and distance alphabets are
- defined.
-
- In all cases, the decoding algorithm for the actual data is as
- follows:
-
- do
- read block header from input stream.
- if stored with no compression
- skip any remaining bits in current partially
- processed byte
- read LEN and NLEN (see next section)
- copy LEN bytes of data to output
- otherwise
- if compressed with dynamic Huffman codes
- read representation of code trees (see
- subsection below)
- loop (until end of block code recognized)
- decode literal/length value from input stream
- if value < 256
- copy value (literal byte) to output stream
- otherwise
- if value = end of block (256)
- break from loop
- otherwise (value = 257..285)
- decode distance from input stream
-
- move backwards distance bytes in the output
- stream, and copy length bytes from this
- position to the output stream.
- end loop
- while not last block
-
- Note that a duplicated string reference may refer to a string
- in a previous block; i.e., the backward distance may cross one
- or more block boundaries. However a distance cannot refer past
- the beginning of the output stream. (An application using a
-
-
-
-Deutsch Informational [Page 10]
-
-RFC 1951 DEFLATE Compressed Data Format Specification May 1996
-
-
- preset dictionary might discard part of the output stream; a
- distance can refer to that part of the output stream anyway)
- Note also that the referenced string may overlap the current
- position; for example, if the last 2 bytes decoded have values
- X and Y, a string reference with <length = 5, distance = 2>
- adds X,Y,X,Y,X to the output stream.
-
- We now specify each compression method in turn.
-
- 3.2.4. Non-compressed blocks (BTYPE=00)
-
- Any bits of input up to the next byte boundary are ignored.
- The rest of the block consists of the following information:
-
- 0 1 2 3 4...
- +---+---+---+---+================================+
- | LEN | NLEN |... LEN bytes of literal data...|
- +---+---+---+---+================================+
-
- LEN is the number of data bytes in the block. NLEN is the
- one's complement of LEN.
-
- 3.2.5. Compressed blocks (length and distance codes)
-
- As noted above, encoded data blocks in the "deflate" format
- consist of sequences of symbols drawn from three conceptually
- distinct alphabets: either literal bytes, from the alphabet of
- byte values (0..255), or <length, backward distance> pairs,
- where the length is drawn from (3..258) and the distance is
- drawn from (1..32,768). In fact, the literal and length
- alphabets are merged into a single alphabet (0..285), where
- values 0..255 represent literal bytes, the value 256 indicates
- end-of-block, and values 257..285 represent length codes
- (possibly in conjunction with extra bits following the symbol
- code) as follows:
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-Deutsch Informational [Page 11]
-
-RFC 1951 DEFLATE Compressed Data Format Specification May 1996
-
-
- Extra Extra Extra
- Code Bits Length(s) Code Bits Lengths Code Bits Length(s)
- ---- ---- ------ ---- ---- ------- ---- ---- -------
- 257 0 3 267 1 15,16 277 4 67-82
- 258 0 4 268 1 17,18 278 4 83-98
- 259 0 5 269 2 19-22 279 4 99-114
- 260 0 6 270 2 23-26 280 4 115-130
- 261 0 7 271 2 27-30 281 5 131-162
- 262 0 8 272 2 31-34 282 5 163-194
- 263 0 9 273 3 35-42 283 5 195-226
- 264 0 10 274 3 43-50 284 5 227-257
- 265 1 11,12 275 3 51-58 285 0 258
- 266 1 13,14 276 3 59-66
-
- The extra bits should be interpreted as a machine integer
- stored with the most-significant bit first, e.g., bits 1110
- represent the value 14.
-
- Extra Extra Extra
- Code Bits Dist Code Bits Dist Code Bits Distance
- ---- ---- ---- ---- ---- ------ ---- ---- --------
- 0 0 1 10 4 33-48 20 9 1025-1536
- 1 0 2 11 4 49-64 21 9 1537-2048
- 2 0 3 12 5 65-96 22 10 2049-3072
- 3 0 4 13 5 97-128 23 10 3073-4096
- 4 1 5,6 14 6 129-192 24 11 4097-6144
- 5 1 7,8 15 6 193-256 25 11 6145-8192
- 6 2 9-12 16 7 257-384 26 12 8193-12288
- 7 2 13-16 17 7 385-512 27 12 12289-16384
- 8 3 17-24 18 8 513-768 28 13 16385-24576
- 9 3 25-32 19 8 769-1024 29 13 24577-32768
-
- 3.2.6. Compression with fixed Huffman codes (BTYPE=01)
-
- The Huffman codes for the two alphabets are fixed, and are not
- represented explicitly in the data. The Huffman code lengths
- for the literal/length alphabet are:
-
- Lit Value Bits Codes
- --------- ---- -----
- 0 - 143 8 00110000 through
- 10111111
- 144 - 255 9 110010000 through
- 111111111
- 256 - 279 7 0000000 through
- 0010111
- 280 - 287 8 11000000 through
- 11000111
-
-
-
-Deutsch Informational [Page 12]
-
-RFC 1951 DEFLATE Compressed Data Format Specification May 1996
-
-
- The code lengths are sufficient to generate the actual codes,
- as described above; we show the codes in the table for added
- clarity. Literal/length values 286-287 will never actually
- occur in the compressed data, but participate in the code
- construction.
-
- Distance codes 0-31 are represented by (fixed-length) 5-bit
- codes, with possible additional bits as shown in the table
- shown in Paragraph 3.2.5, above. Note that distance codes 30-
- 31 will never actually occur in the compressed data.
-
- 3.2.7. Compression with dynamic Huffman codes (BTYPE=10)
-
- The Huffman codes for the two alphabets appear in the block
- immediately after the header bits and before the actual
- compressed data, first the literal/length code and then the
- distance code. Each code is defined by a sequence of code
- lengths, as discussed in Paragraph 3.2.2, above. For even
- greater compactness, the code length sequences themselves are
- compressed using a Huffman code. The alphabet for code lengths
- is as follows:
-
- 0 - 15: Represent code lengths of 0 - 15
- 16: Copy the previous code length 3 - 6 times.
- The next 2 bits indicate repeat length
- (0 = 3, ... , 3 = 6)
- Example: Codes 8, 16 (+2 bits 11),
- 16 (+2 bits 10) will expand to
- 12 code lengths of 8 (1 + 6 + 5)
- 17: Repeat a code length of 0 for 3 - 10 times.
- (3 bits of length)
- 18: Repeat a code length of 0 for 11 - 138 times
- (7 bits of length)
-
- A code length of 0 indicates that the corresponding symbol in
- the literal/length or distance alphabet will not occur in the
- block, and should not participate in the Huffman code
- construction algorithm given earlier. If only one distance
- code is used, it is encoded using one bit, not zero bits; in
- this case there is a single code length of one, with one unused
- code. One distance code of zero bits means that there are no
- distance codes used at all (the data is all literals).
-
- We can now define the format of the block:
-
- 5 Bits: HLIT, # of Literal/Length codes - 257 (257 - 286)
- 5 Bits: HDIST, # of Distance codes - 1 (1 - 32)
- 4 Bits: HCLEN, # of Code Length codes - 4 (4 - 19)
-
-
-
-Deutsch Informational [Page 13]
-
-RFC 1951 DEFLATE Compressed Data Format Specification May 1996
-
-
- (HCLEN + 4) x 3 bits: code lengths for the code length
- alphabet given just above, in the order: 16, 17, 18,
- 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15
-
- These code lengths are interpreted as 3-bit integers
- (0-7); as above, a code length of 0 means the
- corresponding symbol (literal/length or distance code
- length) is not used.
-
- HLIT + 257 code lengths for the literal/length alphabet,
- encoded using the code length Huffman code
-
- HDIST + 1 code lengths for the distance alphabet,
- encoded using the code length Huffman code
-
- The actual compressed data of the block,
- encoded using the literal/length and distance Huffman
- codes
-
- The literal/length symbol 256 (end of data),
- encoded using the literal/length Huffman code
-
- The code length repeat codes can cross from HLIT + 257 to the
- HDIST + 1 code lengths. In other words, all code lengths form
- a single sequence of HLIT + HDIST + 258 values.
-
- 3.3. Compliance
-
- A compressor may limit further the ranges of values specified in
- the previous section and still be compliant; for example, it may
- limit the range of backward pointers to some value smaller than
- 32K. Similarly, a compressor may limit the size of blocks so that
- a compressible block fits in memory.
-
- A compliant decompressor must accept the full range of possible
- values defined in the previous section, and must accept blocks of
- arbitrary size.
-
-4. Compression algorithm details
-
- While it is the intent of this document to define the "deflate"
- compressed data format without reference to any particular
- compression algorithm, the format is related to the compressed
- formats produced by LZ77 (Lempel-Ziv 1977, see reference [2] below);
- since many variations of LZ77 are patented, it is strongly
- recommended that the implementor of a compressor follow the general
- algorithm presented here, which is known not to be patented per se.
- The material in this section is not part of the definition of the
-
-
-
-Deutsch Informational [Page 14]
-
-RFC 1951 DEFLATE Compressed Data Format Specification May 1996
-
-
- specification per se, and a compressor need not follow it in order to
- be compliant.
-
- The compressor terminates a block when it determines that starting a
- new block with fresh trees would be useful, or when the block size
- fills up the compressor's block buffer.
-
- The compressor uses a chained hash table to find duplicated strings,
- using a hash function that operates on 3-byte sequences. At any
- given point during compression, let XYZ be the next 3 input bytes to
- be examined (not necessarily all different, of course). First, the
- compressor examines the hash chain for XYZ. If the chain is empty,
- the compressor simply writes out X as a literal byte and advances one
- byte in the input. If the hash chain is not empty, indicating that
- the sequence XYZ (or, if we are unlucky, some other 3 bytes with the
- same hash function value) has occurred recently, the compressor
- compares all strings on the XYZ hash chain with the actual input data
- sequence starting at the current point, and selects the longest
- match.
-
- The compressor searches the hash chains starting with the most recent
- strings, to favor small distances and thus take advantage of the
- Huffman encoding. The hash chains are singly linked. There are no
- deletions from the hash chains; the algorithm simply discards matches
- that are too old. To avoid a worst-case situation, very long hash
- chains are arbitrarily truncated at a certain length, determined by a
- run-time parameter.
-
- To improve overall compression, the compressor optionally defers the
- selection of matches ("lazy matching"): after a match of length N has
- been found, the compressor searches for a longer match starting at
- the next input byte. If it finds a longer match, it truncates the
- previous match to a length of one (thus producing a single literal
- byte) and then emits the longer match. Otherwise, it emits the
- original match, and, as described above, advances N bytes before
- continuing.
-
- Run-time parameters also control this "lazy match" procedure. If
- compression ratio is most important, the compressor attempts a
- complete second search regardless of the length of the first match.
- In the normal case, if the current match is "long enough", the
- compressor reduces the search for a longer match, thus speeding up
- the process. If speed is most important, the compressor inserts new
- strings in the hash table only when no match was found, or when the
- match is not "too long". This degrades the compression ratio but
- saves time since there are both fewer insertions and fewer searches.
-
-
-
-
-
-Deutsch Informational [Page 15]
-
-RFC 1951 DEFLATE Compressed Data Format Specification May 1996
-
-
-5. References
-
- [1] Huffman, D. A., "A Method for the Construction of Minimum
- Redundancy Codes", Proceedings of the Institute of Radio
- Engineers, September 1952, Volume 40, Number 9, pp. 1098-1101.
-
- [2] Ziv J., Lempel A., "A Universal Algorithm for Sequential Data
- Compression", IEEE Transactions on Information Theory, Vol. 23,
- No. 3, pp. 337-343.
-
- [3] Gailly, J.-L., and Adler, M., ZLIB documentation and sources,
- available in ftp://ftp.uu.net/pub/archiving/zip/doc/
-
- [4] Gailly, J.-L., and Adler, M., GZIP documentation and sources,
- available as gzip-*.tar in ftp://prep.ai.mit.edu/pub/gnu/
-
- [5] Schwartz, E. S., and Kallick, B. "Generating a canonical prefix
- encoding." Comm. ACM, 7,3 (Mar. 1964), pp. 166-169.
-
- [6] Hirschberg and Lelewer, "Efficient decoding of prefix codes,"
- Comm. ACM, 33,4, April 1990, pp. 449-459.
-
-6. Security Considerations
-
- Any data compression method involves the reduction of redundancy in
- the data. Consequently, any corruption of the data is likely to have
- severe effects and be difficult to correct. Uncompressed text, on
- the other hand, will probably still be readable despite the presence
- of some corrupted bytes.
-
- It is recommended that systems using this data format provide some
- means of validating the integrity of the compressed data. See
- reference [3], for example.
-
-7. Source code
-
- Source code for a C language implementation of a "deflate" compliant
- compressor and decompressor is available within the zlib package at
- ftp://ftp.uu.net/pub/archiving/zip/zlib/.
-
-8. Acknowledgements
-
- Trademarks cited in this document are the property of their
- respective owners.
-
- Phil Katz designed the deflate format. Jean-Loup Gailly and Mark
- Adler wrote the related software described in this specification.
- Glenn Randers-Pehrson converted this document to RFC and HTML format.
-
-
-
-Deutsch Informational [Page 16]
-
-RFC 1951 DEFLATE Compressed Data Format Specification May 1996
-
-
-9. Author's Address
-
- L. Peter Deutsch
- Aladdin Enterprises
- 203 Santa Margarita Ave.
- Menlo Park, CA 94025
-
- Phone: (415) 322-0103 (AM only)
- FAX: (415) 322-1734
- EMail: <ghost@aladdin.com>
-
- Questions about the technical content of this specification can be
- sent by email to:
-
- Jean-Loup Gailly <gzip@prep.ai.mit.edu> and
- Mark Adler <madler@alumni.caltech.edu>
-
- Editorial comments on this specification can be sent by email to:
-
- L. Peter Deutsch <ghost@aladdin.com> and
- Glenn Randers-Pehrson <randeg@alumni.rpi.edu>
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-Deutsch Informational [Page 17]
-
diff --git a/src/3rdparty/zlib/doc/rfc1952.txt b/src/3rdparty/zlib/doc/rfc1952.txt
deleted file mode 100644
index a8e51b4567..0000000000
--- a/src/3rdparty/zlib/doc/rfc1952.txt
+++ /dev/null
@@ -1,675 +0,0 @@
-
-
-
-
-
-
-Network Working Group P. Deutsch
-Request for Comments: 1952 Aladdin Enterprises
-Category: Informational May 1996
-
-
- GZIP file format specification version 4.3
-
-Status of This Memo
-
- This memo provides information for the Internet community. This memo
- does not specify an Internet standard of any kind. Distribution of
- this memo is unlimited.
-
-IESG Note:
-
- The IESG takes no position on the validity of any Intellectual
- Property Rights statements contained in this document.
-
-Notices
-
- Copyright (c) 1996 L. Peter Deutsch
-
- Permission is granted to copy and distribute this document for any
- purpose and without charge, including translations into other
- languages and incorporation into compilations, provided that the
- copyright notice and this notice are preserved, and that any
- substantive changes or deletions from the original are clearly
- marked.
-
- A pointer to the latest version of this and related documentation in
- HTML format can be found at the URL
- <ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html>.
-
-Abstract
-
- This specification defines a lossless compressed data format that is
- compatible with the widely used GZIP utility. The format includes a
- cyclic redundancy check value for detecting data corruption. The
- format presently uses the DEFLATE method of compression but can be
- easily extended to use other compression methods. The format can be
- implemented readily in a manner not covered by patents.
-
-
-
-
-
-
-
-
-
-
-Deutsch Informational [Page 1]
-
-RFC 1952 GZIP File Format Specification May 1996
-
-
-Table of Contents
-
- 1. Introduction ................................................... 2
- 1.1. Purpose ................................................... 2
- 1.2. Intended audience ......................................... 3
- 1.3. Scope ..................................................... 3
- 1.4. Compliance ................................................ 3
- 1.5. Definitions of terms and conventions used ................. 3
- 1.6. Changes from previous versions ............................ 3
- 2. Detailed specification ......................................... 4
- 2.1. Overall conventions ....................................... 4
- 2.2. File format ............................................... 5
- 2.3. Member format ............................................. 5
- 2.3.1. Member header and trailer ........................... 6
- 2.3.1.1. Extra field ................................... 8
- 2.3.1.2. Compliance .................................... 9
- 3. References .................................................. 9
- 4. Security Considerations .................................... 10
- 5. Acknowledgements ........................................... 10
- 6. Author's Address ........................................... 10
- 7. Appendix: Jean-Loup Gailly's gzip utility .................. 11
- 8. Appendix: Sample CRC Code .................................. 11
-
-1. Introduction
-
- 1.1. Purpose
-
- The purpose of this specification is to define a lossless
- compressed data format that:
-
- * Is independent of CPU type, operating system, file system,
- and character set, and hence can be used for interchange;
- * Can compress or decompress a data stream (as opposed to a
- randomly accessible file) to produce another data stream,
- using only an a priori bounded amount of intermediate
- storage, and hence can be used in data communications or
- similar structures such as Unix filters;
- * Compresses data with efficiency comparable to the best
- currently available general-purpose compression methods,
- and in particular considerably better than the "compress"
- program;
- * Can be implemented readily in a manner not covered by
- patents, and hence can be practiced freely;
- * Is compatible with the file format produced by the current
- widely used gzip utility, in that conforming decompressors
- will be able to read data produced by the existing gzip
- compressor.
-
-
-
-
-Deutsch Informational [Page 2]
-
-RFC 1952 GZIP File Format Specification May 1996
-
-
- The data format defined by this specification does not attempt to:
-
- * Provide random access to compressed data;
- * Compress specialized data (e.g., raster graphics) as well as
- the best currently available specialized algorithms.
-
- 1.2. Intended audience
-
- This specification is intended for use by implementors of software
- to compress data into gzip format and/or decompress data from gzip
- format.
-
- The text of the specification assumes a basic background in
- programming at the level of bits and other primitive data
- representations.
-
- 1.3. Scope
-
- The specification specifies a compression method and a file format
- (the latter assuming only that a file can store a sequence of
- arbitrary bytes). It does not specify any particular interface to
- a file system or anything about character sets or encodings
- (except for file names and comments, which are optional).
-
- 1.4. Compliance
-
- Unless otherwise indicated below, a compliant decompressor must be
- able to accept and decompress any file that conforms to all the
- specifications presented here; a compliant compressor must produce
- files that conform to all the specifications presented here. The
- material in the appendices is not part of the specification per se
- and is not relevant to compliance.
-
- 1.5. Definitions of terms and conventions used
-
- byte: 8 bits stored or transmitted as a unit (same as an octet).
- (For this specification, a byte is exactly 8 bits, even on
- machines which store a character on a number of bits different
- from 8.) See below for the numbering of bits within a byte.
-
- 1.6. Changes from previous versions
-
- There have been no technical changes to the gzip format since
- version 4.1 of this specification. In version 4.2, some
- terminology was changed, and the sample CRC code was rewritten for
- clarity and to eliminate the requirement for the caller to do pre-
- and post-conditioning. Version 4.3 is a conversion of the
- specification to RFC style.
-
-
-
-Deutsch Informational [Page 3]
-
-RFC 1952 GZIP File Format Specification May 1996
-
-
-2. Detailed specification
-
- 2.1. Overall conventions
-
- In the diagrams below, a box like this:
-
- +---+
- | | <-- the vertical bars might be missing
- +---+
-
- represents one byte; a box like this:
-
- +==============+
- | |
- +==============+
-
- represents a variable number of bytes.
-
- Bytes stored within a computer do not have a "bit order", since
- they are always treated as a unit. However, a byte considered as
- an integer between 0 and 255 does have a most- and least-
- significant bit, and since we write numbers with the most-
- significant digit on the left, we also write bytes with the most-
- significant bit on the left. In the diagrams below, we number the
- bits of a byte so that bit 0 is the least-significant bit, i.e.,
- the bits are numbered:
-
- +--------+
- |76543210|
- +--------+
-
- This document does not address the issue of the order in which
- bits of a byte are transmitted on a bit-sequential medium, since
- the data format described here is byte- rather than bit-oriented.
-
- Within a computer, a number may occupy multiple bytes. All
- multi-byte numbers in the format described here are stored with
- the least-significant byte first (at the lower memory address).
- For example, the decimal number 520 is stored as:
-
- 0 1
- +--------+--------+
- |00001000|00000010|
- +--------+--------+
- ^ ^
- | |
- | + more significant byte = 2 x 256
- + less significant byte = 8
-
-
-
-Deutsch Informational [Page 4]
-
-RFC 1952 GZIP File Format Specification May 1996
-
-
- 2.2. File format
-
- A gzip file consists of a series of "members" (compressed data
- sets). The format of each member is specified in the following
- section. The members simply appear one after another in the file,
- with no additional information before, between, or after them.
-
- 2.3. Member format
-
- Each member has the following structure:
-
- +---+---+---+---+---+---+---+---+---+---+
- |ID1|ID2|CM |FLG| MTIME |XFL|OS | (more-->)
- +---+---+---+---+---+---+---+---+---+---+
-
- (if FLG.FEXTRA set)
-
- +---+---+=================================+
- | XLEN |...XLEN bytes of "extra field"...| (more-->)
- +---+---+=================================+
-
- (if FLG.FNAME set)
-
- +=========================================+
- |...original file name, zero-terminated...| (more-->)
- +=========================================+
-
- (if FLG.FCOMMENT set)
-
- +===================================+
- |...file comment, zero-terminated...| (more-->)
- +===================================+
-
- (if FLG.FHCRC set)
-
- +---+---+
- | CRC16 |
- +---+---+
-
- +=======================+
- |...compressed blocks...| (more-->)
- +=======================+
-
- 0 1 2 3 4 5 6 7
- +---+---+---+---+---+---+---+---+
- | CRC32 | ISIZE |
- +---+---+---+---+---+---+---+---+
-
-
-
-
-Deutsch Informational [Page 5]
-
-RFC 1952 GZIP File Format Specification May 1996
-
-
- 2.3.1. Member header and trailer
-
- ID1 (IDentification 1)
- ID2 (IDentification 2)
- These have the fixed values ID1 = 31 (0x1f, \037), ID2 = 139
- (0x8b, \213), to identify the file as being in gzip format.
-
- CM (Compression Method)
- This identifies the compression method used in the file. CM
- = 0-7 are reserved. CM = 8 denotes the "deflate"
- compression method, which is the one customarily used by
- gzip and which is documented elsewhere.
-
- FLG (FLaGs)
- This flag byte is divided into individual bits as follows:
-
- bit 0 FTEXT
- bit 1 FHCRC
- bit 2 FEXTRA
- bit 3 FNAME
- bit 4 FCOMMENT
- bit 5 reserved
- bit 6 reserved
- bit 7 reserved
-
- If FTEXT is set, the file is probably ASCII text. This is
- an optional indication, which the compressor may set by
- checking a small amount of the input data to see whether any
- non-ASCII characters are present. In case of doubt, FTEXT
- is cleared, indicating binary data. For systems which have
- different file formats for ascii text and binary data, the
- decompressor can use FTEXT to choose the appropriate format.
- We deliberately do not specify the algorithm used to set
- this bit, since a compressor always has the option of
- leaving it cleared and a decompressor always has the option
- of ignoring it and letting some other program handle issues
- of data conversion.
-
- If FHCRC is set, a CRC16 for the gzip header is present,
- immediately before the compressed data. The CRC16 consists
- of the two least significant bytes of the CRC32 for all
- bytes of the gzip header up to and not including the CRC16.
- [The FHCRC bit was never set by versions of gzip up to
- 1.2.4, even though it was documented with a different
- meaning in gzip 1.2.4.]
-
- If FEXTRA is set, optional extra fields are present, as
- described in a following section.
-
-
-
-Deutsch Informational [Page 6]
-
-RFC 1952 GZIP File Format Specification May 1996
-
-
- If FNAME is set, an original file name is present,
- terminated by a zero byte. The name must consist of ISO
- 8859-1 (LATIN-1) characters; on operating systems using
- EBCDIC or any other character set for file names, the name
- must be translated to the ISO LATIN-1 character set. This
- is the original name of the file being compressed, with any
- directory components removed, and, if the file being
- compressed is on a file system with case insensitive names,
- forced to lower case. There is no original file name if the
- data was compressed from a source other than a named file;
- for example, if the source was stdin on a Unix system, there
- is no file name.
-
- If FCOMMENT is set, a zero-terminated file comment is
- present. This comment is not interpreted; it is only
- intended for human consumption. The comment must consist of
- ISO 8859-1 (LATIN-1) characters. Line breaks should be
- denoted by a single line feed character (10 decimal).
-
- Reserved FLG bits must be zero.
-
- MTIME (Modification TIME)
- This gives the most recent modification time of the original
- file being compressed. The time is in Unix format, i.e.,
- seconds since 00:00:00 GMT, Jan. 1, 1970. (Note that this
- may cause problems for MS-DOS and other systems that use
- local rather than Universal time.) If the compressed data
- did not come from a file, MTIME is set to the time at which
- compression started. MTIME = 0 means no time stamp is
- available.
-
- XFL (eXtra FLags)
- These flags are available for use by specific compression
- methods. The "deflate" method (CM = 8) sets these flags as
- follows:
-
- XFL = 2 - compressor used maximum compression,
- slowest algorithm
- XFL = 4 - compressor used fastest algorithm
-
- OS (Operating System)
- This identifies the type of file system on which compression
- took place. This may be useful in determining end-of-line
- convention for text files. The currently defined values are
- as follows:
-
-
-
-
-
-
-Deutsch Informational [Page 7]
-
-RFC 1952 GZIP File Format Specification May 1996
-
-
- 0 - FAT filesystem (MS-DOS, OS/2, NT/Win32)
- 1 - Amiga
- 2 - VMS (or OpenVMS)
- 3 - Unix
- 4 - VM/CMS
- 5 - Atari TOS
- 6 - HPFS filesystem (OS/2, NT)
- 7 - Macintosh
- 8 - Z-System
- 9 - CP/M
- 10 - TOPS-20
- 11 - NTFS filesystem (NT)
- 12 - QDOS
- 13 - Acorn RISCOS
- 255 - unknown
-
- XLEN (eXtra LENgth)
- If FLG.FEXTRA is set, this gives the length of the optional
- extra field. See below for details.
-
- CRC32 (CRC-32)
- This contains a Cyclic Redundancy Check value of the
- uncompressed data computed according to CRC-32 algorithm
- used in the ISO 3309 standard and in section 8.1.1.6.2 of
- ITU-T recommendation V.42. (See http://www.iso.ch for
- ordering ISO documents. See gopher://info.itu.ch for an
- online version of ITU-T V.42.)
-
- ISIZE (Input SIZE)
- This contains the size of the original (uncompressed) input
- data modulo 2^32.
-
- 2.3.1.1. Extra field
-
- If the FLG.FEXTRA bit is set, an "extra field" is present in
- the header, with total length XLEN bytes. It consists of a
- series of subfields, each of the form:
-
- +---+---+---+---+==================================+
- |SI1|SI2| LEN |... LEN bytes of subfield data ...|
- +---+---+---+---+==================================+
-
- SI1 and SI2 provide a subfield ID, typically two ASCII letters
- with some mnemonic value. Jean-Loup Gailly
- <gzip@prep.ai.mit.edu> is maintaining a registry of subfield
- IDs; please send him any subfield ID you wish to use. Subfield
- IDs with SI2 = 0 are reserved for future use. The following
- IDs are currently defined:
-
-
-
-Deutsch Informational [Page 8]
-
-RFC 1952 GZIP File Format Specification May 1996
-
-
- SI1 SI2 Data
- ---------- ---------- ----
- 0x41 ('A') 0x70 ('P') Apollo file type information
-
- LEN gives the length of the subfield data, excluding the 4
- initial bytes.
-
- 2.3.1.2. Compliance
-
- A compliant compressor must produce files with correct ID1,
- ID2, CM, CRC32, and ISIZE, but may set all the other fields in
- the fixed-length part of the header to default values (255 for
- OS, 0 for all others). The compressor must set all reserved
- bits to zero.
-
- A compliant decompressor must check ID1, ID2, and CM, and
- provide an error indication if any of these have incorrect
- values. It must examine FEXTRA/XLEN, FNAME, FCOMMENT and FHCRC
- at least so it can skip over the optional fields if they are
- present. It need not examine any other part of the header or
- trailer; in particular, a decompressor may ignore FTEXT and OS
- and always produce binary output, and still be compliant. A
- compliant decompressor must give an error indication if any
- reserved bit is non-zero, since such a bit could indicate the
- presence of a new field that would cause subsequent data to be
- interpreted incorrectly.
-
-3. References
-
- [1] "Information Processing - 8-bit single-byte coded graphic
- character sets - Part 1: Latin alphabet No.1" (ISO 8859-1:1987).
- The ISO 8859-1 (Latin-1) character set is a superset of 7-bit
- ASCII. Files defining this character set are available as
- iso_8859-1.* in ftp://ftp.uu.net/graphics/png/documents/
-
- [2] ISO 3309
-
- [3] ITU-T recommendation V.42
-
- [4] Deutsch, L.P.,"DEFLATE Compressed Data Format Specification",
- available in ftp://ftp.uu.net/pub/archiving/zip/doc/
-
- [5] Gailly, J.-L., GZIP documentation, available as gzip-*.tar in
- ftp://prep.ai.mit.edu/pub/gnu/
-
- [6] Sarwate, D.V., "Computation of Cyclic Redundancy Checks via Table
- Look-Up", Communications of the ACM, 31(8), pp.1008-1013.
-
-
-
-
-Deutsch Informational [Page 9]
-
-RFC 1952 GZIP File Format Specification May 1996
-
-
- [7] Schwaderer, W.D., "CRC Calculation", April 85 PC Tech Journal,
- pp.118-133.
-
- [8] ftp://ftp.adelaide.edu.au/pub/rocksoft/papers/crc_v3.txt,
- describing the CRC concept.
-
-4. Security Considerations
-
- Any data compression method involves the reduction of redundancy in
- the data. Consequently, any corruption of the data is likely to have
- severe effects and be difficult to correct. Uncompressed text, on
- the other hand, will probably still be readable despite the presence
- of some corrupted bytes.
-
- It is recommended that systems using this data format provide some
- means of validating the integrity of the compressed data, such as by
- setting and checking the CRC-32 check value.
-
-5. Acknowledgements
-
- Trademarks cited in this document are the property of their
- respective owners.
-
- Jean-Loup Gailly designed the gzip format and wrote, with Mark Adler,
- the related software described in this specification. Glenn
- Randers-Pehrson converted this document to RFC and HTML format.
-
-6. Author's Address
-
- L. Peter Deutsch
- Aladdin Enterprises
- 203 Santa Margarita Ave.
- Menlo Park, CA 94025
-
- Phone: (415) 322-0103 (AM only)
- FAX: (415) 322-1734
- EMail: <ghost@aladdin.com>
-
- Questions about the technical content of this specification can be
- sent by email to:
-
- Jean-Loup Gailly <gzip@prep.ai.mit.edu> and
- Mark Adler <madler@alumni.caltech.edu>
-
- Editorial comments on this specification can be sent by email to:
-
- L. Peter Deutsch <ghost@aladdin.com> and
- Glenn Randers-Pehrson <randeg@alumni.rpi.edu>
-
-
-
-Deutsch Informational [Page 10]
-
-RFC 1952 GZIP File Format Specification May 1996
-
-
-7. Appendix: Jean-Loup Gailly's gzip utility
-
- The most widely used implementation of gzip compression, and the
- original documentation on which this specification is based, were
- created by Jean-Loup Gailly <gzip@prep.ai.mit.edu>. Since this
- implementation is a de facto standard, we mention some more of its
- features here. Again, the material in this section is not part of
- the specification per se, and implementations need not follow it to
- be compliant.
-
- When compressing or decompressing a file, gzip preserves the
- protection, ownership, and modification time attributes on the local
- file system, since there is no provision for representing protection
- attributes in the gzip file format itself. Since the file format
- includes a modification time, the gzip decompressor provides a
- command line switch that assigns the modification time from the file,
- rather than the local modification time of the compressed input, to
- the decompressed output.
-
-8. Appendix: Sample CRC Code
-
- The following sample code represents a practical implementation of
- the CRC (Cyclic Redundancy Check). (See also ISO 3309 and ITU-T V.42
- for a formal specification.)
-
- The sample code is in the ANSI C programming language. Non C users
- may find it easier to read with these hints:
-
- & Bitwise AND operator.
- ^ Bitwise exclusive-OR operator.
- >> Bitwise right shift operator. When applied to an
- unsigned quantity, as here, right shift inserts zero
- bit(s) at the left.
- ! Logical NOT operator.
- ++ "n++" increments the variable n.
- 0xNNN 0x introduces a hexadecimal (base 16) constant.
- Suffix L indicates a long value (at least 32 bits).
-
- /* Table of CRCs of all 8-bit messages. */
- unsigned long crc_table[256];
-
- /* Flag: has the table been computed? Initially false. */
- int crc_table_computed = 0;
-
- /* Make the table for a fast CRC. */
- void make_crc_table(void)
- {
- unsigned long c;
-
-
-
-Deutsch Informational [Page 11]
-
-RFC 1952 GZIP File Format Specification May 1996
-
-
- int n, k;
- for (n = 0; n < 256; n++) {
- c = (unsigned long) n;
- for (k = 0; k < 8; k++) {
- if (c & 1) {
- c = 0xedb88320L ^ (c >> 1);
- } else {
- c = c >> 1;
- }
- }
- crc_table[n] = c;
- }
- crc_table_computed = 1;
- }
-
- /*
- Update a running crc with the bytes buf[0..len-1] and return
- the updated crc. The crc should be initialized to zero. Pre- and
- post-conditioning (one's complement) is performed within this
- function so it shouldn't be done by the caller. Usage example:
-
- unsigned long crc = 0L;
-
- while (read_buffer(buffer, length) != EOF) {
- crc = update_crc(crc, buffer, length);
- }
- if (crc != original_crc) error();
- */
- unsigned long update_crc(unsigned long crc,
- unsigned char *buf, int len)
- {
- unsigned long c = crc ^ 0xffffffffL;
- int n;
-
- if (!crc_table_computed)
- make_crc_table();
- for (n = 0; n < len; n++) {
- c = crc_table[(c ^ buf[n]) & 0xff] ^ (c >> 8);
- }
- return c ^ 0xffffffffL;
- }
-
- /* Return the CRC of the bytes buf[0..len-1]. */
- unsigned long crc(unsigned char *buf, int len)
- {
- return update_crc(0L, buf, len);
- }
-
-
-
-
-Deutsch Informational [Page 12]
-
diff --git a/src/3rdparty/zlib/doc/txtvsbin.txt b/src/3rdparty/zlib/doc/txtvsbin.txt
deleted file mode 100644
index 3d0f0634f7..0000000000
--- a/src/3rdparty/zlib/doc/txtvsbin.txt
+++ /dev/null
@@ -1,107 +0,0 @@
-A Fast Method for Identifying Plain Text Files
-==============================================
-
-
-Introduction
-------------
-
-Given a file coming from an unknown source, it is sometimes desirable
-to find out whether the format of that file is plain text. Although
-this may appear like a simple task, a fully accurate detection of the
-file type requires heavy-duty semantic analysis on the file contents.
-It is, however, possible to obtain satisfactory results by employing
-various heuristics.
-
-Previous versions of PKZip and other zip-compatible compression tools
-were using a crude detection scheme: if more than 80% (4/5) of the bytes
-found in a certain buffer are within the range [7..127], the file is
-labeled as plain text, otherwise it is labeled as binary. A prominent
-limitation of this scheme is the restriction to Latin-based alphabets.
-Other alphabets, like Greek, Cyrillic or Asian, make extensive use of
-the bytes within the range [128..255], and texts using these alphabets
-are most often misidentified by this scheme; in other words, the rate
-of false negatives is sometimes too high, which means that the recall
-is low. Another weakness of this scheme is a reduced precision, due to
-the false positives that may occur when binary files containing large
-amounts of textual characters are misidentified as plain text.
-
-In this article we propose a new, simple detection scheme that features
-a much increased precision and a near-100% recall. This scheme is
-designed to work on ASCII, Unicode and other ASCII-derived alphabets,
-and it handles single-byte encodings (ISO-8859, MacRoman, KOI8, etc.)
-and variable-sized encodings (ISO-2022, UTF-8, etc.). Wider encodings
-(UCS-2/UTF-16 and UCS-4/UTF-32) are not handled, however.
-
-
-The Algorithm
--------------
-
-The algorithm works by dividing the set of bytecodes [0..255] into three
-categories:
-- The white list of textual bytecodes:
- 9 (TAB), 10 (LF), 13 (CR), 32 (SPACE) to 255.
-- The gray list of tolerated bytecodes:
- 7 (BEL), 8 (BS), 11 (VT), 12 (FF), 26 (SUB), 27 (ESC).
-- The black list of undesired, non-textual bytecodes:
- 0 (NUL) to 6, 14 to 31.
-
-If a file contains at least one byte that belongs to the white list and
-no byte that belongs to the black list, then the file is categorized as
-plain text; otherwise, it is categorized as binary. (The boundary case,
-when the file is empty, automatically falls into the latter category.)
-
-
-Rationale
----------
-
-The idea behind this algorithm relies on two observations.
-
-The first observation is that, although the full range of 7-bit codes
-[0..127] is properly specified by the ASCII standard, most control
-characters in the range [0..31] are not used in practice. The only
-widely-used, almost universally-portable control codes are 9 (TAB),
-10 (LF) and 13 (CR). There are a few more control codes that are
-recognized on a reduced range of platforms and text viewers/editors:
-7 (BEL), 8 (BS), 11 (VT), 12 (FF), 26 (SUB) and 27 (ESC); but these
-codes are rarely (if ever) used alone, without being accompanied by
-some printable text. Even the newer, portable text formats such as
-XML avoid using control characters outside the list mentioned here.
-
-The second observation is that most of the binary files tend to contain
-control characters, especially 0 (NUL). Even though the older text
-detection schemes observe the presence of non-ASCII codes from the range
-[128..255], the precision rarely has to suffer if this upper range is
-labeled as textual, because the files that are genuinely binary tend to
-contain both control characters and codes from the upper range. On the
-other hand, the upper range needs to be labeled as textual, because it
-is used by virtually all ASCII extensions. In particular, this range is
-used for encoding non-Latin scripts.
-
-Since there is no counting involved, other than simply observing the
-presence or the absence of some byte values, the algorithm produces
-consistent results, regardless what alphabet encoding is being used.
-(If counting were involved, it could be possible to obtain different
-results on a text encoded, say, using ISO-8859-16 versus UTF-8.)
-
-There is an extra category of plain text files that are "polluted" with
-one or more black-listed codes, either by mistake or by peculiar design
-considerations. In such cases, a scheme that tolerates a small fraction
-of black-listed codes would provide an increased recall (i.e. more true
-positives). This, however, incurs a reduced precision overall, since
-false positives are more likely to appear in binary files that contain
-large chunks of textual data. Furthermore, "polluted" plain text should
-be regarded as binary by general-purpose text detection schemes, because
-general-purpose text processing algorithms might not be applicable.
-Under this premise, it is safe to say that our detection method provides
-a near-100% recall.
-
-Experiments have been run on many files coming from various platforms
-and applications. We tried plain text files, system logs, source code,
-formatted office documents, compiled object code, etc. The results
-confirm the optimistic assumptions about the capabilities of this
-algorithm.
-
-
---
-Cosmin Truta
-Last updated: 2006-May-28
diff --git a/src/3rdparty/zlib/example.c b/src/3rdparty/zlib/example.c
deleted file mode 100644
index 604736f15f..0000000000
--- a/src/3rdparty/zlib/example.c
+++ /dev/null
@@ -1,565 +0,0 @@
-/* example.c -- usage example of the zlib compression library
- * Copyright (C) 1995-2006 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id$ */
-
-#include "zlib.h"
-#include <stdio.h>
-
-#ifdef STDC
-# include <string.h>
-# include <stdlib.h>
-#endif
-
-#if defined(VMS) || defined(RISCOS)
-# define TESTFILE "foo-gz"
-#else
-# define TESTFILE "foo.gz"
-#endif
-
-#define CHECK_ERR(err, msg) { \
- if (err != Z_OK) { \
- fprintf(stderr, "%s error: %d\n", msg, err); \
- exit(1); \
- } \
-}
-
-const char hello[] = "hello, hello!";
-/* "hello world" would be more standard, but the repeated "hello"
- * stresses the compression code better, sorry...
- */
-
-const char dictionary[] = "hello";
-uLong dictId; /* Adler32 value of the dictionary */
-
-void test_compress OF((Byte *compr, uLong comprLen,
- Byte *uncompr, uLong uncomprLen));
-void test_gzio OF((const char *fname,
- Byte *uncompr, uLong uncomprLen));
-void test_deflate OF((Byte *compr, uLong comprLen));
-void test_inflate OF((Byte *compr, uLong comprLen,
- Byte *uncompr, uLong uncomprLen));
-void test_large_deflate OF((Byte *compr, uLong comprLen,
- Byte *uncompr, uLong uncomprLen));
-void test_large_inflate OF((Byte *compr, uLong comprLen,
- Byte *uncompr, uLong uncomprLen));
-void test_flush OF((Byte *compr, uLong *comprLen));
-void test_sync OF((Byte *compr, uLong comprLen,
- Byte *uncompr, uLong uncomprLen));
-void test_dict_deflate OF((Byte *compr, uLong comprLen));
-void test_dict_inflate OF((Byte *compr, uLong comprLen,
- Byte *uncompr, uLong uncomprLen));
-int main OF((int argc, char *argv[]));
-
-/* ===========================================================================
- * Test compress() and uncompress()
- */
-void test_compress(compr, comprLen, uncompr, uncomprLen)
- Byte *compr, *uncompr;
- uLong comprLen, uncomprLen;
-{
- int err;
- uLong len = (uLong)strlen(hello)+1;
-
- err = compress(compr, &comprLen, (const Bytef*)hello, len);
- CHECK_ERR(err, "compress");
-
- strcpy((char*)uncompr, "garbage");
-
- err = uncompress(uncompr, &uncomprLen, compr, comprLen);
- CHECK_ERR(err, "uncompress");
-
- if (strcmp((char*)uncompr, hello)) {
- fprintf(stderr, "bad uncompress\n");
- exit(1);
- } else {
- printf("uncompress(): %s\n", (char *)uncompr);
- }
-}
-
-/* ===========================================================================
- * Test read/write of .gz files
- */
-void test_gzio(fname, uncompr, uncomprLen)
- const char *fname; /* compressed file name */
- Byte *uncompr;
- uLong uncomprLen;
-{
-#ifdef NO_GZCOMPRESS
- fprintf(stderr, "NO_GZCOMPRESS -- gz* functions cannot compress\n");
-#else
- int err;
- int len = (int)strlen(hello)+1;
- gzFile file;
- z_off_t pos;
-
- file = gzopen(fname, "wb");
- if (file == NULL) {
- fprintf(stderr, "gzopen error\n");
- exit(1);
- }
- gzputc(file, 'h');
- if (gzputs(file, "ello") != 4) {
- fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err));
- exit(1);
- }
- if (gzprintf(file, ", %s!", "hello") != 8) {
- fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
- exit(1);
- }
- gzseek(file, 1L, SEEK_CUR); /* add one zero byte */
- gzclose(file);
-
- file = gzopen(fname, "rb");
- if (file == NULL) {
- fprintf(stderr, "gzopen error\n");
- exit(1);
- }
- strcpy((char*)uncompr, "garbage");
-
- if (gzread(file, uncompr, (unsigned)uncomprLen) != len) {
- fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
- exit(1);
- }
- if (strcmp((char*)uncompr, hello)) {
- fprintf(stderr, "bad gzread: %s\n", (char*)uncompr);
- exit(1);
- } else {
- printf("gzread(): %s\n", (char*)uncompr);
- }
-
- pos = gzseek(file, -8L, SEEK_CUR);
- if (pos != 6 || gztell(file) != pos) {
- fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n",
- (long)pos, (long)gztell(file));
- exit(1);
- }
-
- if (gzgetc(file) != ' ') {
- fprintf(stderr, "gzgetc error\n");
- exit(1);
- }
-
- if (gzungetc(' ', file) != ' ') {
- fprintf(stderr, "gzungetc error\n");
- exit(1);
- }
-
- gzgets(file, (char*)uncompr, (int)uncomprLen);
- if (strlen((char*)uncompr) != 7) { /* " hello!" */
- fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err));
- exit(1);
- }
- if (strcmp((char*)uncompr, hello + 6)) {
- fprintf(stderr, "bad gzgets after gzseek\n");
- exit(1);
- } else {
- printf("gzgets() after gzseek: %s\n", (char*)uncompr);
- }
-
- gzclose(file);
-#endif
-}
-
-/* ===========================================================================
- * Test deflate() with small buffers
- */
-void test_deflate(compr, comprLen)
- Byte *compr;
- uLong comprLen;
-{
- z_stream c_stream; /* compression stream */
- int err;
- uLong len = (uLong)strlen(hello)+1;
-
- c_stream.zalloc = (alloc_func)0;
- c_stream.zfree = (free_func)0;
- c_stream.opaque = (voidpf)0;
-
- err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
- CHECK_ERR(err, "deflateInit");
-
- c_stream.next_in = (Bytef*)hello;
- c_stream.next_out = compr;
-
- while (c_stream.total_in != len && c_stream.total_out < comprLen) {
- c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */
- err = deflate(&c_stream, Z_NO_FLUSH);
- CHECK_ERR(err, "deflate");
- }
- /* Finish the stream, still forcing small buffers: */
- for (;;) {
- c_stream.avail_out = 1;
- err = deflate(&c_stream, Z_FINISH);
- if (err == Z_STREAM_END) break;
- CHECK_ERR(err, "deflate");
- }
-
- err = deflateEnd(&c_stream);
- CHECK_ERR(err, "deflateEnd");
-}
-
-/* ===========================================================================
- * Test inflate() with small buffers
- */
-void test_inflate(compr, comprLen, uncompr, uncomprLen)
- Byte *compr, *uncompr;
- uLong comprLen, uncomprLen;
-{
- int err;
- z_stream d_stream; /* decompression stream */
-
- strcpy((char*)uncompr, "garbage");
-
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
- d_stream.opaque = (voidpf)0;
-
- d_stream.next_in = compr;
- d_stream.avail_in = 0;
- d_stream.next_out = uncompr;
-
- err = inflateInit(&d_stream);
- CHECK_ERR(err, "inflateInit");
-
- while (d_stream.total_out < uncomprLen && d_stream.total_in < comprLen) {
- d_stream.avail_in = d_stream.avail_out = 1; /* force small buffers */
- err = inflate(&d_stream, Z_NO_FLUSH);
- if (err == Z_STREAM_END) break;
- CHECK_ERR(err, "inflate");
- }
-
- err = inflateEnd(&d_stream);
- CHECK_ERR(err, "inflateEnd");
-
- if (strcmp((char*)uncompr, hello)) {
- fprintf(stderr, "bad inflate\n");
- exit(1);
- } else {
- printf("inflate(): %s\n", (char *)uncompr);
- }
-}
-
-/* ===========================================================================
- * Test deflate() with large buffers and dynamic change of compression level
- */
-void test_large_deflate(compr, comprLen, uncompr, uncomprLen)
- Byte *compr, *uncompr;
- uLong comprLen, uncomprLen;
-{
- z_stream c_stream; /* compression stream */
- int err;
-
- c_stream.zalloc = (alloc_func)0;
- c_stream.zfree = (free_func)0;
- c_stream.opaque = (voidpf)0;
-
- err = deflateInit(&c_stream, Z_BEST_SPEED);
- CHECK_ERR(err, "deflateInit");
-
- c_stream.next_out = compr;
- c_stream.avail_out = (uInt)comprLen;
-
- /* At this point, uncompr is still mostly zeroes, so it should compress
- * very well:
- */
- c_stream.next_in = uncompr;
- c_stream.avail_in = (uInt)uncomprLen;
- err = deflate(&c_stream, Z_NO_FLUSH);
- CHECK_ERR(err, "deflate");
- if (c_stream.avail_in != 0) {
- fprintf(stderr, "deflate not greedy\n");
- exit(1);
- }
-
- /* Feed in already compressed data and switch to no compression: */
- deflateParams(&c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY);
- c_stream.next_in = compr;
- c_stream.avail_in = (uInt)comprLen/2;
- err = deflate(&c_stream, Z_NO_FLUSH);
- CHECK_ERR(err, "deflate");
-
- /* Switch back to compressing mode: */
- deflateParams(&c_stream, Z_BEST_COMPRESSION, Z_FILTERED);
- c_stream.next_in = uncompr;
- c_stream.avail_in = (uInt)uncomprLen;
- err = deflate(&c_stream, Z_NO_FLUSH);
- CHECK_ERR(err, "deflate");
-
- err = deflate(&c_stream, Z_FINISH);
- if (err != Z_STREAM_END) {
- fprintf(stderr, "deflate should report Z_STREAM_END\n");
- exit(1);
- }
- err = deflateEnd(&c_stream);
- CHECK_ERR(err, "deflateEnd");
-}
-
-/* ===========================================================================
- * Test inflate() with large buffers
- */
-void test_large_inflate(compr, comprLen, uncompr, uncomprLen)
- Byte *compr, *uncompr;
- uLong comprLen, uncomprLen;
-{
- int err;
- z_stream d_stream; /* decompression stream */
-
- strcpy((char*)uncompr, "garbage");
-
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
- d_stream.opaque = (voidpf)0;
-
- d_stream.next_in = compr;
- d_stream.avail_in = (uInt)comprLen;
-
- err = inflateInit(&d_stream);
- CHECK_ERR(err, "inflateInit");
-
- for (;;) {
- d_stream.next_out = uncompr; /* discard the output */
- d_stream.avail_out = (uInt)uncomprLen;
- err = inflate(&d_stream, Z_NO_FLUSH);
- if (err == Z_STREAM_END) break;
- CHECK_ERR(err, "large inflate");
- }
-
- err = inflateEnd(&d_stream);
- CHECK_ERR(err, "inflateEnd");
-
- if (d_stream.total_out != 2*uncomprLen + comprLen/2) {
- fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out);
- exit(1);
- } else {
- printf("large_inflate(): OK\n");
- }
-}
-
-/* ===========================================================================
- * Test deflate() with full flush
- */
-void test_flush(compr, comprLen)
- Byte *compr;
- uLong *comprLen;
-{
- z_stream c_stream; /* compression stream */
- int err;
- uInt len = (uInt)strlen(hello)+1;
-
- c_stream.zalloc = (alloc_func)0;
- c_stream.zfree = (free_func)0;
- c_stream.opaque = (voidpf)0;
-
- err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
- CHECK_ERR(err, "deflateInit");
-
- c_stream.next_in = (Bytef*)hello;
- c_stream.next_out = compr;
- c_stream.avail_in = 3;
- c_stream.avail_out = (uInt)*comprLen;
- err = deflate(&c_stream, Z_FULL_FLUSH);
- CHECK_ERR(err, "deflate");
-
- compr[3]++; /* force an error in first compressed block */
- c_stream.avail_in = len - 3;
-
- err = deflate(&c_stream, Z_FINISH);
- if (err != Z_STREAM_END) {
- CHECK_ERR(err, "deflate");
- }
- err = deflateEnd(&c_stream);
- CHECK_ERR(err, "deflateEnd");
-
- *comprLen = c_stream.total_out;
-}
-
-/* ===========================================================================
- * Test inflateSync()
- */
-void test_sync(compr, comprLen, uncompr, uncomprLen)
- Byte *compr, *uncompr;
- uLong comprLen, uncomprLen;
-{
- int err;
- z_stream d_stream; /* decompression stream */
-
- strcpy((char*)uncompr, "garbage");
-
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
- d_stream.opaque = (voidpf)0;
-
- d_stream.next_in = compr;
- d_stream.avail_in = 2; /* just read the zlib header */
-
- err = inflateInit(&d_stream);
- CHECK_ERR(err, "inflateInit");
-
- d_stream.next_out = uncompr;
- d_stream.avail_out = (uInt)uncomprLen;
-
- inflate(&d_stream, Z_NO_FLUSH);
- CHECK_ERR(err, "inflate");
-
- d_stream.avail_in = (uInt)comprLen-2; /* read all compressed data */
- err = inflateSync(&d_stream); /* but skip the damaged part */
- CHECK_ERR(err, "inflateSync");
-
- err = inflate(&d_stream, Z_FINISH);
- if (err != Z_DATA_ERROR) {
- fprintf(stderr, "inflate should report DATA_ERROR\n");
- /* Because of incorrect adler32 */
- exit(1);
- }
- err = inflateEnd(&d_stream);
- CHECK_ERR(err, "inflateEnd");
-
- printf("after inflateSync(): hel%s\n", (char *)uncompr);
-}
-
-/* ===========================================================================
- * Test deflate() with preset dictionary
- */
-void test_dict_deflate(compr, comprLen)
- Byte *compr;
- uLong comprLen;
-{
- z_stream c_stream; /* compression stream */
- int err;
-
- c_stream.zalloc = (alloc_func)0;
- c_stream.zfree = (free_func)0;
- c_stream.opaque = (voidpf)0;
-
- err = deflateInit(&c_stream, Z_BEST_COMPRESSION);
- CHECK_ERR(err, "deflateInit");
-
- err = deflateSetDictionary(&c_stream,
- (const Bytef*)dictionary, sizeof(dictionary));
- CHECK_ERR(err, "deflateSetDictionary");
-
- dictId = c_stream.adler;
- c_stream.next_out = compr;
- c_stream.avail_out = (uInt)comprLen;
-
- c_stream.next_in = (Bytef*)hello;
- c_stream.avail_in = (uInt)strlen(hello)+1;
-
- err = deflate(&c_stream, Z_FINISH);
- if (err != Z_STREAM_END) {
- fprintf(stderr, "deflate should report Z_STREAM_END\n");
- exit(1);
- }
- err = deflateEnd(&c_stream);
- CHECK_ERR(err, "deflateEnd");
-}
-
-/* ===========================================================================
- * Test inflate() with a preset dictionary
- */
-void test_dict_inflate(compr, comprLen, uncompr, uncomprLen)
- Byte *compr, *uncompr;
- uLong comprLen, uncomprLen;
-{
- int err;
- z_stream d_stream; /* decompression stream */
-
- strcpy((char*)uncompr, "garbage");
-
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
- d_stream.opaque = (voidpf)0;
-
- d_stream.next_in = compr;
- d_stream.avail_in = (uInt)comprLen;
-
- err = inflateInit(&d_stream);
- CHECK_ERR(err, "inflateInit");
-
- d_stream.next_out = uncompr;
- d_stream.avail_out = (uInt)uncomprLen;
-
- for (;;) {
- err = inflate(&d_stream, Z_NO_FLUSH);
- if (err == Z_STREAM_END) break;
- if (err == Z_NEED_DICT) {
- if (d_stream.adler != dictId) {
- fprintf(stderr, "unexpected dictionary");
- exit(1);
- }
- err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
- sizeof(dictionary));
- }
- CHECK_ERR(err, "inflate with dict");
- }
-
- err = inflateEnd(&d_stream);
- CHECK_ERR(err, "inflateEnd");
-
- if (strcmp((char*)uncompr, hello)) {
- fprintf(stderr, "bad inflate with dict\n");
- exit(1);
- } else {
- printf("inflate with dictionary: %s\n", (char *)uncompr);
- }
-}
-
-/* ===========================================================================
- * Usage: example [output.gz [input.gz]]
- */
-
-int main(argc, argv)
- int argc;
- char *argv[];
-{
- Byte *compr, *uncompr;
- uLong comprLen = 10000*sizeof(int); /* don't overflow on MSDOS */
- uLong uncomprLen = comprLen;
- static const char* myVersion = ZLIB_VERSION;
-
- if (zlibVersion()[0] != myVersion[0]) {
- fprintf(stderr, "incompatible zlib version\n");
- exit(1);
-
- } else if (strcmp(zlibVersion(), ZLIB_VERSION) != 0) {
- fprintf(stderr, "warning: different zlib version\n");
- }
-
- printf("zlib version %s = 0x%04x, compile flags = 0x%lx\n",
- ZLIB_VERSION, ZLIB_VERNUM, zlibCompileFlags());
-
- compr = (Byte*)calloc((uInt)comprLen, 1);
- uncompr = (Byte*)calloc((uInt)uncomprLen, 1);
- /* compr and uncompr are cleared to avoid reading uninitialized
- * data and to ensure that uncompr compresses well.
- */
- if (compr == Z_NULL || uncompr == Z_NULL) {
- printf("out of memory\n");
- exit(1);
- }
- test_compress(compr, comprLen, uncompr, uncomprLen);
-
- test_gzio((argc > 1 ? argv[1] : TESTFILE),
- uncompr, uncomprLen);
-
- test_deflate(compr, comprLen);
- test_inflate(compr, comprLen, uncompr, uncomprLen);
-
- test_large_deflate(compr, comprLen, uncompr, uncomprLen);
- test_large_inflate(compr, comprLen, uncompr, uncomprLen);
-
- test_flush(compr, &comprLen);
- test_sync(compr, comprLen, uncompr, uncomprLen);
- comprLen = uncomprLen;
-
- test_dict_deflate(compr, comprLen);
- test_dict_inflate(compr, comprLen, uncompr, uncomprLen);
-
- free(compr);
- free(uncompr);
-
- return 0;
-}
diff --git a/src/3rdparty/zlib/gzread.c b/src/3rdparty/zlib/gzread.c
deleted file mode 100644
index 548201ab00..0000000000
--- a/src/3rdparty/zlib/gzread.c
+++ /dev/null
@@ -1,653 +0,0 @@
-/* gzread.c -- zlib functions for reading gzip files
- * Copyright (C) 2004, 2005, 2010 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-#include "gzguts.h"
-
-/* Local functions */
-local int gz_load OF((gz_statep, unsigned char *, unsigned, unsigned *));
-local int gz_avail OF((gz_statep));
-local int gz_next4 OF((gz_statep, unsigned long *));
-local int gz_head OF((gz_statep));
-local int gz_decomp OF((gz_statep));
-local int gz_make OF((gz_statep));
-local int gz_skip OF((gz_statep, z_off64_t));
-
-/* Use read() to load a buffer -- return -1 on error, otherwise 0. Read from
- state->fd, and update state->eof, state->err, and state->msg as appropriate.
- This function needs to loop on read(), since read() is not guaranteed to
- read the number of bytes requested, depending on the type of descriptor. */
-local int gz_load(state, buf, len, have)
- gz_statep state;
- unsigned char *buf;
- unsigned len;
- unsigned *have;
-{
- int ret;
-
- *have = 0;
- do {
- ret = read(state->fd, buf + *have, len - *have);
- if (ret <= 0)
- break;
- *have += ret;
- } while (*have < len);
- if (ret < 0) {
- gz_error(state, Z_ERRNO, zstrerror());
- return -1;
- }
- if (ret == 0)
- state->eof = 1;
- return 0;
-}
-
-/* Load up input buffer and set eof flag if last data loaded -- return -1 on
- error, 0 otherwise. Note that the eof flag is set when the end of the input
- file is reached, even though there may be unused data in the buffer. Once
- that data has been used, no more attempts will be made to read the file.
- gz_avail() assumes that strm->avail_in == 0. */
-local int gz_avail(state)
- gz_statep state;
-{
- z_streamp strm = &(state->strm);
-
- if (state->err != Z_OK)
- return -1;
- if (state->eof == 0) {
- if (gz_load(state, state->in, state->size,
- (unsigned *)&(strm->avail_in)) == -1)
- return -1;
- strm->next_in = state->in;
- }
- return 0;
-}
-
-/* Get next byte from input, or -1 if end or error. */
-#define NEXT() ((strm->avail_in == 0 && gz_avail(state) == -1) ? -1 : \
- (strm->avail_in == 0 ? -1 : \
- (strm->avail_in--, *(strm->next_in)++)))
-
-/* Get a four-byte little-endian integer and return 0 on success and the value
- in *ret. Otherwise -1 is returned and *ret is not modified. */
-local int gz_next4(state, ret)
- gz_statep state;
- unsigned long *ret;
-{
- int ch;
- unsigned long val;
- z_streamp strm = &(state->strm);
-
- val = NEXT();
- val += (unsigned)NEXT() << 8;
- val += (unsigned long)NEXT() << 16;
- ch = NEXT();
- if (ch == -1)
- return -1;
- val += (unsigned long)ch << 24;
- *ret = val;
- return 0;
-}
-
-/* Look for gzip header, set up for inflate or copy. state->have must be zero.
- If this is the first time in, allocate required memory. state->how will be
- left unchanged if there is no more input data available, will be set to COPY
- if there is no gzip header and direct copying will be performed, or it will
- be set to GZIP for decompression, and the gzip header will be skipped so
- that the next available input data is the raw deflate stream. If direct
- copying, then leftover input data from the input buffer will be copied to
- the output buffer. In that case, all further file reads will be directly to
- either the output buffer or a user buffer. If decompressing, the inflate
- state and the check value will be initialized. gz_head() will return 0 on
- success or -1 on failure. Failures may include read errors or gzip header
- errors. */
-local int gz_head(state)
- gz_statep state;
-{
- z_streamp strm = &(state->strm);
- int flags;
- unsigned len;
-
- /* allocate read buffers and inflate memory */
- if (state->size == 0) {
- /* allocate buffers */
- state->in = malloc(state->want);
- state->out = malloc(state->want << 1);
- if (state->in == NULL || state->out == NULL) {
- if (state->out != NULL)
- free(state->out);
- if (state->in != NULL)
- free(state->in);
- gz_error(state, Z_MEM_ERROR, "out of memory");
- return -1;
- }
- state->size = state->want;
-
- /* allocate inflate memory */
- state->strm.zalloc = Z_NULL;
- state->strm.zfree = Z_NULL;
- state->strm.opaque = Z_NULL;
- state->strm.avail_in = 0;
- state->strm.next_in = Z_NULL;
- if (inflateInit2(&(state->strm), -15) != Z_OK) { /* raw inflate */
- free(state->out);
- free(state->in);
- state->size = 0;
- gz_error(state, Z_MEM_ERROR, "out of memory");
- return -1;
- }
- }
-
- /* get some data in the input buffer */
- if (strm->avail_in == 0) {
- if (gz_avail(state) == -1)
- return -1;
- if (strm->avail_in == 0)
- return 0;
- }
-
- /* look for the gzip magic header bytes 31 and 139 */
- if (strm->next_in[0] == 31) {
- strm->avail_in--;
- strm->next_in++;
- if (strm->avail_in == 0 && gz_avail(state) == -1)
- return -1;
- if (strm->avail_in && strm->next_in[0] == 139) {
- /* we have a gzip header, woo hoo! */
- strm->avail_in--;
- strm->next_in++;
-
- /* skip rest of header */
- if (NEXT() != 8) { /* compression method */
- gz_error(state, Z_DATA_ERROR, "unknown compression method");
- return -1;
- }
- flags = NEXT();
- if (flags & 0xe0) { /* reserved flag bits */
- gz_error(state, Z_DATA_ERROR, "unknown header flags set");
- return -1;
- }
- NEXT(); /* modification time */
- NEXT();
- NEXT();
- NEXT();
- NEXT(); /* extra flags */
- NEXT(); /* operating system */
- if (flags & 4) { /* extra field */
- len = (unsigned)NEXT();
- len += (unsigned)NEXT() << 8;
- while (len--)
- if (NEXT() < 0)
- break;
- }
- if (flags & 8) /* file name */
- while (NEXT() > 0)
- ;
- if (flags & 16) /* comment */
- while (NEXT() > 0)
- ;
- if (flags & 2) { /* header crc */
- NEXT();
- NEXT();
- }
- /* an unexpected end of file is not checked for here -- it will be
- noticed on the first request for uncompressed data */
-
- /* set up for decompression */
- inflateReset(strm);
- strm->adler = crc32(0L, Z_NULL, 0);
- state->how = GZIP;
- state->direct = 0;
- return 0;
- }
- else {
- /* not a gzip file -- save first byte (31) and fall to raw i/o */
- state->out[0] = 31;
- state->have = 1;
- }
- }
-
- /* doing raw i/o, save start of raw data for seeking, copy any leftover
- input to output -- this assumes that the output buffer is larger than
- the input buffer, which also assures space for gzungetc() */
- state->raw = state->pos;
- state->next = state->out;
- if (strm->avail_in) {
- memcpy(state->next + state->have, strm->next_in, strm->avail_in);
- state->have += strm->avail_in;
- strm->avail_in = 0;
- }
- state->how = COPY;
- state->direct = 1;
- return 0;
-}
-
-/* Decompress from input to the provided next_out and avail_out in the state.
- If the end of the compressed data is reached, then verify the gzip trailer
- check value and length (modulo 2^32). state->have and state->next are set
- to point to the just decompressed data, and the crc is updated. If the
- trailer is verified, state->how is reset to LOOK to look for the next gzip
- stream or raw data, once state->have is depleted. Returns 0 on success, -1
- on failure. Failures may include invalid compressed data or a failed gzip
- trailer verification. */
-local int gz_decomp(state)
- gz_statep state;
-{
- int ret;
- unsigned had;
- unsigned long crc, len;
- z_streamp strm = &(state->strm);
-
- /* fill output buffer up to end of deflate stream */
- had = strm->avail_out;
- do {
- /* get more input for inflate() */
- if (strm->avail_in == 0 && gz_avail(state) == -1)
- return -1;
- if (strm->avail_in == 0) {
- gz_error(state, Z_DATA_ERROR, "unexpected end of file");
- return -1;
- }
-
- /* decompress and handle errors */
- ret = inflate(strm, Z_NO_FLUSH);
- if (ret == Z_STREAM_ERROR || ret == Z_NEED_DICT) {
- gz_error(state, Z_STREAM_ERROR,
- "internal error: inflate stream corrupt");
- return -1;
- }
- if (ret == Z_MEM_ERROR) {
- gz_error(state, Z_MEM_ERROR, "out of memory");
- return -1;
- }
- if (ret == Z_DATA_ERROR) { /* deflate stream invalid */
- gz_error(state, Z_DATA_ERROR,
- strm->msg == NULL ? "compressed data error" : strm->msg);
- return -1;
- }
- } while (strm->avail_out && ret != Z_STREAM_END);
-
- /* update available output and crc check value */
- state->have = had - strm->avail_out;
- state->next = strm->next_out - state->have;
- strm->adler = crc32(strm->adler, state->next, state->have);
-
- /* check gzip trailer if at end of deflate stream */
- if (ret == Z_STREAM_END) {
- if (gz_next4(state, &crc) == -1 || gz_next4(state, &len) == -1) {
- gz_error(state, Z_DATA_ERROR, "unexpected end of file");
- return -1;
- }
- if (crc != strm->adler) {
- gz_error(state, Z_DATA_ERROR, "incorrect data check");
- return -1;
- }
- if (len != (strm->total_out & 0xffffffffL)) {
- gz_error(state, Z_DATA_ERROR, "incorrect length check");
- return -1;
- }
- state->how = LOOK; /* ready for next stream, once have is 0 (leave
- state->direct unchanged to remember how) */
- }
-
- /* good decompression */
- return 0;
-}
-
-/* Make data and put in the output buffer. Assumes that state->have == 0.
- Data is either copied from the input file or decompressed from the input
- file depending on state->how. If state->how is LOOK, then a gzip header is
- looked for (and skipped if found) to determine wither to copy or decompress.
- Returns -1 on error, otherwise 0. gz_make() will leave state->have as COPY
- or GZIP unless the end of the input file has been reached and all data has
- been processed. */
-local int gz_make(state)
- gz_statep state;
-{
- z_streamp strm = &(state->strm);
-
- if (state->how == LOOK) { /* look for gzip header */
- if (gz_head(state) == -1)
- return -1;
- if (state->have) /* got some data from gz_head() */
- return 0;
- }
- if (state->how == COPY) { /* straight copy */
- if (gz_load(state, state->out, state->size << 1, &(state->have)) == -1)
- return -1;
- state->next = state->out;
- }
- else if (state->how == GZIP) { /* decompress */
- strm->avail_out = state->size << 1;
- strm->next_out = state->out;
- if (gz_decomp(state) == -1)
- return -1;
- }
- return 0;
-}
-
-/* Skip len uncompressed bytes of output. Return -1 on error, 0 on success. */
-local int gz_skip(state, len)
- gz_statep state;
- z_off64_t len;
-{
- unsigned n;
-
- /* skip over len bytes or reach end-of-file, whichever comes first */
- while (len)
- /* skip over whatever is in output buffer */
- if (state->have) {
- n = GT_OFF(state->have) || (z_off64_t)state->have > len ?
- (unsigned)len : state->have;
- state->have -= n;
- state->next += n;
- state->pos += n;
- len -= n;
- }
-
- /* output buffer empty -- return if we're at the end of the input */
- else if (state->eof && state->strm.avail_in == 0)
- break;
-
- /* need more data to skip -- load up output buffer */
- else {
- /* get more output, looking for header if required */
- if (gz_make(state) == -1)
- return -1;
- }
- return 0;
-}
-
-/* -- see zlib.h -- */
-int ZEXPORT gzread(file, buf, len)
- gzFile file;
- voidp buf;
- unsigned len;
-{
- unsigned got, n;
- gz_statep state;
- z_streamp strm;
-
- /* get internal structure */
- if (file == NULL)
- return -1;
- state = (gz_statep)file;
- strm = &(state->strm);
-
- /* check that we're reading and that there's no error */
- if (state->mode != GZ_READ || state->err != Z_OK)
- return -1;
-
- /* since an int is returned, make sure len fits in one, otherwise return
- with an error (this avoids the flaw in the interface) */
- if ((int)len < 0) {
- gz_error(state, Z_BUF_ERROR, "requested length does not fit in int");
- return -1;
- }
-
- /* if len is zero, avoid unnecessary operations */
- if (len == 0)
- return 0;
-
- /* process a skip request */
- if (state->seek) {
- state->seek = 0;
- if (gz_skip(state, state->skip) == -1)
- return -1;
- }
-
- /* get len bytes to buf, or less than len if at the end */
- got = 0;
- do {
- /* first just try copying data from the output buffer */
- if (state->have) {
- n = state->have > len ? len : state->have;
- memcpy(buf, state->next, n);
- state->next += n;
- state->have -= n;
- }
-
- /* output buffer empty -- return if we're at the end of the input */
- else if (state->eof && strm->avail_in == 0)
- break;
-
- /* need output data -- for small len or new stream load up our output
- buffer */
- else if (state->how == LOOK || len < (state->size << 1)) {
- /* get more output, looking for header if required */
- if (gz_make(state) == -1)
- return -1;
- continue; /* no progress yet -- go back to memcpy() above */
- /* the copy above assures that we will leave with space in the
- output buffer, allowing at least one gzungetc() to succeed */
- }
-
- /* large len -- read directly into user buffer */
- else if (state->how == COPY) { /* read directly */
- if (gz_load(state, buf, len, &n) == -1)
- return -1;
- }
-
- /* large len -- decompress directly into user buffer */
- else { /* state->how == GZIP */
- strm->avail_out = len;
- strm->next_out = buf;
- if (gz_decomp(state) == -1)
- return -1;
- n = state->have;
- state->have = 0;
- }
-
- /* update progress */
- len -= n;
- buf = (char *)buf + n;
- got += n;
- state->pos += n;
- } while (len);
-
- /* return number of bytes read into user buffer (will fit in int) */
- return (int)got;
-}
-
-/* -- see zlib.h -- */
-int ZEXPORT gzgetc(file)
- gzFile file;
-{
- int ret;
- unsigned char buf[1];
- gz_statep state;
-
- /* get internal structure */
- if (file == NULL)
- return -1;
- state = (gz_statep)file;
-
- /* check that we're reading and that there's no error */
- if (state->mode != GZ_READ || state->err != Z_OK)
- return -1;
-
- /* try output buffer (no need to check for skip request) */
- if (state->have) {
- state->have--;
- state->pos++;
- return *(state->next)++;
- }
-
- /* nothing there -- try gzread() */
- ret = gzread(file, buf, 1);
- return ret < 1 ? -1 : buf[0];
-}
-
-/* -- see zlib.h -- */
-int ZEXPORT gzungetc(c, file)
- int c;
- gzFile file;
-{
- gz_statep state;
-
- /* get internal structure */
- if (file == NULL)
- return -1;
- state = (gz_statep)file;
-
- /* check that we're reading and that there's no error */
- if (state->mode != GZ_READ || state->err != Z_OK)
- return -1;
-
- /* process a skip request */
- if (state->seek) {
- state->seek = 0;
- if (gz_skip(state, state->skip) == -1)
- return -1;
- }
-
- /* can't push EOF */
- if (c < 0)
- return -1;
-
- /* if output buffer empty, put byte at end (allows more pushing) */
- if (state->have == 0) {
- state->have = 1;
- state->next = state->out + (state->size << 1) - 1;
- state->next[0] = c;
- state->pos--;
- return c;
- }
-
- /* if no room, give up (must have already done a gzungetc()) */
- if (state->have == (state->size << 1)) {
- gz_error(state, Z_BUF_ERROR, "out of room to push characters");
- return -1;
- }
-
- /* slide output data if needed and insert byte before existing data */
- if (state->next == state->out) {
- unsigned char *src = state->out + state->have;
- unsigned char *dest = state->out + (state->size << 1);
- while (src > state->out)
- *--dest = *--src;
- state->next = dest;
- }
- state->have++;
- state->next--;
- state->next[0] = c;
- state->pos--;
- return c;
-}
-
-/* -- see zlib.h -- */
-char * ZEXPORT gzgets(file, buf, len)
- gzFile file;
- char *buf;
- int len;
-{
- unsigned left, n;
- char *str;
- unsigned char *eol;
- gz_statep state;
-
- /* check parameters and get internal structure */
- if (file == NULL || buf == NULL || len < 1)
- return NULL;
- state = (gz_statep)file;
-
- /* check that we're reading and that there's no error */
- if (state->mode != GZ_READ || state->err != Z_OK)
- return NULL;
-
- /* process a skip request */
- if (state->seek) {
- state->seek = 0;
- if (gz_skip(state, state->skip) == -1)
- return NULL;
- }
-
- /* copy output bytes up to new line or len - 1, whichever comes first --
- append a terminating zero to the string (we don't check for a zero in
- the contents, let the user worry about that) */
- str = buf;
- left = (unsigned)len - 1;
- if (left) do {
- /* assure that something is in the output buffer */
- if (state->have == 0) {
- if (gz_make(state) == -1)
- return NULL; /* error */
- if (state->have == 0) { /* end of file */
- if (buf == str) /* got bupkus */
- return NULL;
- break; /* got something -- return it */
- }
- }
-
- /* look for end-of-line in current output buffer */
- n = state->have > left ? left : state->have;
- eol = memchr(state->next, '\n', n);
- if (eol != NULL)
- n = (unsigned)(eol - state->next) + 1;
-
- /* copy through end-of-line, or remainder if not found */
- memcpy(buf, state->next, n);
- state->have -= n;
- state->next += n;
- state->pos += n;
- left -= n;
- buf += n;
- } while (left && eol == NULL);
-
- /* found end-of-line or out of space -- terminate string and return it */
- buf[0] = 0;
- return str;
-}
-
-/* -- see zlib.h -- */
-int ZEXPORT gzdirect(file)
- gzFile file;
-{
- gz_statep state;
-
- /* get internal structure */
- if (file == NULL)
- return 0;
- state = (gz_statep)file;
-
- /* check that we're reading */
- if (state->mode != GZ_READ)
- return 0;
-
- /* if the state is not known, but we can find out, then do so (this is
- mainly for right after a gzopen() or gzdopen()) */
- if (state->how == LOOK && state->have == 0)
- (void)gz_head(state);
-
- /* return 1 if reading direct, 0 if decompressing a gzip stream */
- return state->direct;
-}
-
-/* -- see zlib.h -- */
-int ZEXPORT gzclose_r(file)
- gzFile file;
-{
- int ret;
- gz_statep state;
-
- /* get internal structure */
- if (file == NULL)
- return Z_STREAM_ERROR;
- state = (gz_statep)file;
-
- /* check that we're reading */
- if (state->mode != GZ_READ)
- return Z_STREAM_ERROR;
-
- /* free memory and close file */
- if (state->size) {
- inflateEnd(&(state->strm));
- free(state->out);
- free(state->in);
- }
- gz_error(state, Z_OK, NULL);
- free(state->path);
- ret = close(state->fd);
- free(state);
- return ret ? Z_ERRNO : Z_OK;
-}
diff --git a/src/3rdparty/zlib/import_from_zlib_tarball.sh b/src/3rdparty/zlib/import_from_zlib_tarball.sh
new file mode 100755
index 0000000000..5251f43d33
--- /dev/null
+++ b/src/3rdparty/zlib/import_from_zlib_tarball.sh
@@ -0,0 +1,112 @@
+#! /bin/sh
+#############################################################################
+##
+## Copyright (C) 2017 André Klitzing
+## Contact: https://www.qt.io/licensing/
+##
+## This file is the build configuration utility of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:LGPL$
+## Commercial License Usage
+## Licensees holding valid commercial Qt licenses may use this file in
+## accordance with the commercial license agreement provided with the
+## Software or, alternatively, in accordance with the terms contained in
+## a written agreement between you and The Qt Company. For licensing terms
+## and conditions see https://www.qt.io/terms-conditions. For further
+## information use the contact form at https://www.qt.io/contact-us.
+##
+## GNU Lesser General Public License Usage
+## Alternatively, this file may be used under the terms of the GNU Lesser
+## General Public License version 3 as published by the Free Software
+## Foundation and appearing in the file LICENSE.LGPL3 included in the
+## packaging of this file. Please review the following information to
+## ensure the GNU Lesser General Public License version 3 requirements
+## will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+##
+## GNU General Public License Usage
+## Alternatively, this file may be used under the terms of the GNU
+## General Public License version 2.0 or (at your option) the GNU General
+## Public license version 3 or any later version approved by the KDE Free
+## Qt Foundation. The licenses are as published by the Free Software
+## Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+## included in the packaging of this file. Please review the following
+## information to ensure the GNU General Public License requirements will
+## be met: https://www.gnu.org/licenses/gpl-2.0.html and
+## https://www.gnu.org/licenses/gpl-3.0.html.
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+# This is a small script to copy the required files from a zlib tarball
+# into 3rdparty/zlib/
+
+if [ $# -ne 2 ]; then
+ echo "Usage: $0 zlib_tarball_dir/ \$QTDIR/src/3rdparty/zlib/"
+ exit 1
+fi
+
+ZLIB_DIR=$1
+TARGET_DIR=$2
+
+if [ ! -d "$ZLIB_DIR" -o ! -r "$ZLIB_DIR" -o ! -d "$TARGET_DIR" -o ! -w "$TARGET_DIR" ]; then
+ echo "Either the zlib source dir or the target dir do not exist,"
+ echo "are not directories or have the wrong permissions."
+ exit 2
+fi
+
+# with 1 argument, copies ZLIB_DIR/$1 to TARGET_DIR/$1
+# with 2 arguments, copies ZLIB_DIR/$1 to TARGET_DIR/$2
+copy_file() {
+ if [ $# -lt 1 -o $# -gt 2 ]; then
+ echo "Wrong number of arguments to copy_file"
+ exit 3
+ fi
+
+ SOURCE_FILE=$1
+ if [ -n "$2" ]; then
+ DEST_FILE=$2
+ else
+ DEST_FILE=$1
+ fi
+
+ mkdir -p "$TARGET_DIR/$(dirname "$SOURCE_FILE")"
+ cp "$ZLIB_DIR/$SOURCE_FILE" "$TARGET_DIR/$DEST_FILE"
+}
+
+FILES="
+ README
+ ChangeLog
+
+ adler32.c
+ compress.c
+ crc32.c
+ crc32.h
+ deflate.c
+ deflate.h
+ gzclose.c
+ gzguts.h
+ gzlib.c
+ gzread.c
+ gzwrite.c
+ infback.c
+ inffast.c
+ inffast.h
+ inffixed.h
+ inflate.c
+ inflate.h
+ inftrees.c
+ inftrees.h
+ trees.c
+ trees.h
+ uncompr.c
+ zconf.h
+ zlib.h
+ zutil.c
+ zutil.h
+
+"
+
+for i in $FILES; do
+ copy_file "$i" "src/$i"
+done
diff --git a/src/3rdparty/zlib/minigzip.c b/src/3rdparty/zlib/minigzip.c
deleted file mode 100644
index 9825ccc3a7..0000000000
--- a/src/3rdparty/zlib/minigzip.c
+++ /dev/null
@@ -1,440 +0,0 @@
-/* minigzip.c -- simulate gzip using the zlib compression library
- * Copyright (C) 1995-2006, 2010 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/*
- * minigzip is a minimal implementation of the gzip utility. This is
- * only an example of using zlib and isn't meant to replace the
- * full-featured gzip. No attempt is made to deal with file systems
- * limiting names to 14 or 8+3 characters, etc... Error checking is
- * very limited. So use minigzip only for testing; use gzip for the
- * real thing. On MSDOS, use only on file names without extension
- * or in pipe mode.
- */
-
-/* @(#) $Id$ */
-
-#include "zlib.h"
-#include <stdio.h>
-
-#ifdef STDC
-# include <string.h>
-# include <stdlib.h>
-#endif
-
-#ifdef USE_MMAP
-# include <sys/types.h>
-# include <sys/mman.h>
-# include <sys/stat.h>
-#endif
-
-#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
-# include <fcntl.h>
-# include <io.h>
-# ifdef UNDER_CE
-# include <stdlib.h>
-# endif
-# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
-#else
-# define SET_BINARY_MODE(file)
-#endif
-
-#ifdef VMS
-# define unlink delete
-# define GZ_SUFFIX "-gz"
-#endif
-#ifdef RISCOS
-# define unlink remove
-# define GZ_SUFFIX "-gz"
-# define fileno(file) file->__file
-#endif
-#if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
-# include <unix.h> /* for fileno */
-#endif
-
-#if !defined(Z_HAVE_UNISTD_H) && !defined(_LARGEFILE64_SOURCE)
-#ifndef WIN32 /* unlink already in stdio.h for WIN32 */
- extern int unlink OF((const char *));
-#endif
-#endif
-
-#if defined(UNDER_CE)
-# include <windows.h>
-# define perror(s) pwinerror(s)
-
-/* Map the Windows error number in ERROR to a locale-dependent error
- message string and return a pointer to it. Typically, the values
- for ERROR come from GetLastError.
-
- The string pointed to shall not be modified by the application,
- but may be overwritten by a subsequent call to strwinerror
-
- The strwinerror function does not change the current setting
- of GetLastError. */
-
-static char *strwinerror (error)
- DWORD error;
-{
- static char buf[1024];
-
- wchar_t *msgbuf;
- DWORD lasterr = GetLastError();
- DWORD chars = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM
- | FORMAT_MESSAGE_ALLOCATE_BUFFER,
- NULL,
- error,
- 0, /* Default language */
- (LPVOID)&msgbuf,
- 0,
- NULL);
- if (chars != 0) {
- /* If there is an \r\n appended, zap it. */
- if (chars >= 2
- && msgbuf[chars - 2] == '\r' && msgbuf[chars - 1] == '\n') {
- chars -= 2;
- msgbuf[chars] = 0;
- }
-
- if (chars > sizeof (buf) - 1) {
- chars = sizeof (buf) - 1;
- msgbuf[chars] = 0;
- }
-
- wcstombs(buf, msgbuf, chars + 1);
- LocalFree(msgbuf);
- }
- else {
- sprintf(buf, "unknown win32 error (%ld)", error);
- }
-
- SetLastError(lasterr);
- return buf;
-}
-
-static void pwinerror (s)
- const char *s;
-{
- if (s && *s)
- fprintf(stderr, "%s: %s\n", s, strwinerror(GetLastError ()));
- else
- fprintf(stderr, "%s\n", strwinerror(GetLastError ()));
-}
-
-#endif /* UNDER_CE */
-
-#ifndef GZ_SUFFIX
-# define GZ_SUFFIX ".gz"
-#endif
-#define SUFFIX_LEN (sizeof(GZ_SUFFIX)-1)
-
-#define BUFLEN 16384
-#define MAX_NAME_LEN 1024
-
-#ifdef MAXSEG_64K
-# define local static
- /* Needed for systems with limitation on stack size. */
-#else
-# define local
-#endif
-
-char *prog;
-
-void error OF((const char *msg));
-void gz_compress OF((FILE *in, gzFile out));
-#ifdef USE_MMAP
-int gz_compress_mmap OF((FILE *in, gzFile out));
-#endif
-void gz_uncompress OF((gzFile in, FILE *out));
-void file_compress OF((char *file, char *mode));
-void file_uncompress OF((char *file));
-int main OF((int argc, char *argv[]));
-
-/* ===========================================================================
- * Display error message and exit
- */
-void error(msg)
- const char *msg;
-{
- fprintf(stderr, "%s: %s\n", prog, msg);
- exit(1);
-}
-
-/* ===========================================================================
- * Compress input to output then close both files.
- */
-
-void gz_compress(in, out)
- FILE *in;
- gzFile out;
-{
- local char buf[BUFLEN];
- int len;
- int err;
-
-#ifdef USE_MMAP
- /* Try first compressing with mmap. If mmap fails (minigzip used in a
- * pipe), use the normal fread loop.
- */
- if (gz_compress_mmap(in, out) == Z_OK) return;
-#endif
- for (;;) {
- len = (int)fread(buf, 1, sizeof(buf), in);
- if (ferror(in)) {
- perror("fread");
- exit(1);
- }
- if (len == 0) break;
-
- if (gzwrite(out, buf, (unsigned)len) != len) error(gzerror(out, &err));
- }
- fclose(in);
- if (gzclose(out) != Z_OK) error("failed gzclose");
-}
-
-#ifdef USE_MMAP /* MMAP version, Miguel Albrecht <malbrech@eso.org> */
-
-/* Try compressing the input file at once using mmap. Return Z_OK if
- * if success, Z_ERRNO otherwise.
- */
-int gz_compress_mmap(in, out)
- FILE *in;
- gzFile out;
-{
- int len;
- int err;
- int ifd = fileno(in);
- caddr_t buf; /* mmap'ed buffer for the entire input file */
- off_t buf_len; /* length of the input file */
- struct stat sb;
-
- /* Determine the size of the file, needed for mmap: */
- if (fstat(ifd, &sb) < 0) return Z_ERRNO;
- buf_len = sb.st_size;
- if (buf_len <= 0) return Z_ERRNO;
-
- /* Now do the actual mmap: */
- buf = mmap((caddr_t) 0, buf_len, PROT_READ, MAP_SHARED, ifd, (off_t)0);
- if (buf == (caddr_t)(-1)) return Z_ERRNO;
-
- /* Compress the whole file at once: */
- len = gzwrite(out, (char *)buf, (unsigned)buf_len);
-
- if (len != (int)buf_len) error(gzerror(out, &err));
-
- munmap(buf, buf_len);
- fclose(in);
- if (gzclose(out) != Z_OK) error("failed gzclose");
- return Z_OK;
-}
-#endif /* USE_MMAP */
-
-/* ===========================================================================
- * Uncompress input to output then close both files.
- */
-void gz_uncompress(in, out)
- gzFile in;
- FILE *out;
-{
- local char buf[BUFLEN];
- int len;
- int err;
-
- for (;;) {
- len = gzread(in, buf, sizeof(buf));
- if (len < 0) error (gzerror(in, &err));
- if (len == 0) break;
-
- if ((int)fwrite(buf, 1, (unsigned)len, out) != len) {
- error("failed fwrite");
- }
- }
- if (fclose(out)) error("failed fclose");
-
- if (gzclose(in) != Z_OK) error("failed gzclose");
-}
-
-
-/* ===========================================================================
- * Compress the given file: create a corresponding .gz file and remove the
- * original.
- */
-void file_compress(file, mode)
- char *file;
- char *mode;
-{
- local char outfile[MAX_NAME_LEN];
- FILE *in;
- gzFile out;
-
- if (strlen(file) + strlen(GZ_SUFFIX) >= sizeof(outfile)) {
- fprintf(stderr, "%s: filename too long\n", prog);
- exit(1);
- }
-
- strcpy(outfile, file);
- strcat(outfile, GZ_SUFFIX);
-
- in = fopen(file, "rb");
- if (in == NULL) {
- perror(file);
- exit(1);
- }
- out = gzopen(outfile, mode);
- if (out == NULL) {
- fprintf(stderr, "%s: can't gzopen %s\n", prog, outfile);
- exit(1);
- }
- gz_compress(in, out);
-
- unlink(file);
-}
-
-
-/* ===========================================================================
- * Uncompress the given file and remove the original.
- */
-void file_uncompress(file)
- char *file;
-{
- local char buf[MAX_NAME_LEN];
- char *infile, *outfile;
- FILE *out;
- gzFile in;
- size_t len = strlen(file);
-
- if (len + strlen(GZ_SUFFIX) >= sizeof(buf)) {
- fprintf(stderr, "%s: filename too long\n", prog);
- exit(1);
- }
-
- strcpy(buf, file);
-
- if (len > SUFFIX_LEN && strcmp(file+len-SUFFIX_LEN, GZ_SUFFIX) == 0) {
- infile = file;
- outfile = buf;
- outfile[len-3] = '\0';
- } else {
- outfile = file;
- infile = buf;
- strcat(infile, GZ_SUFFIX);
- }
- in = gzopen(infile, "rb");
- if (in == NULL) {
- fprintf(stderr, "%s: can't gzopen %s\n", prog, infile);
- exit(1);
- }
- out = fopen(outfile, "wb");
- if (out == NULL) {
- perror(file);
- exit(1);
- }
-
- gz_uncompress(in, out);
-
- unlink(infile);
-}
-
-
-/* ===========================================================================
- * Usage: minigzip [-c] [-d] [-f] [-h] [-r] [-1 to -9] [files...]
- * -c : write to standard output
- * -d : decompress
- * -f : compress with Z_FILTERED
- * -h : compress with Z_HUFFMAN_ONLY
- * -r : compress with Z_RLE
- * -1 to -9 : compression level
- */
-
-int main(argc, argv)
- int argc;
- char *argv[];
-{
- int copyout = 0;
- int uncompr = 0;
- gzFile file;
- char *bname, outmode[20];
-
- strcpy(outmode, "wb6 ");
-
- prog = argv[0];
- bname = strrchr(argv[0], '/');
- if (bname)
- bname++;
- else
- bname = argv[0];
- argc--, argv++;
-
- if (!strcmp(bname, "gunzip"))
- uncompr = 1;
- else if (!strcmp(bname, "zcat"))
- copyout = uncompr = 1;
-
- while (argc > 0) {
- if (strcmp(*argv, "-c") == 0)
- copyout = 1;
- else if (strcmp(*argv, "-d") == 0)
- uncompr = 1;
- else if (strcmp(*argv, "-f") == 0)
- outmode[3] = 'f';
- else if (strcmp(*argv, "-h") == 0)
- outmode[3] = 'h';
- else if (strcmp(*argv, "-r") == 0)
- outmode[3] = 'R';
- else if ((*argv)[0] == '-' && (*argv)[1] >= '1' && (*argv)[1] <= '9' &&
- (*argv)[2] == 0)
- outmode[2] = (*argv)[1];
- else
- break;
- argc--, argv++;
- }
- if (outmode[3] == ' ')
- outmode[3] = 0;
- if (argc == 0) {
- SET_BINARY_MODE(stdin);
- SET_BINARY_MODE(stdout);
- if (uncompr) {
- file = gzdopen(fileno(stdin), "rb");
- if (file == NULL) error("can't gzdopen stdin");
- gz_uncompress(file, stdout);
- } else {
- file = gzdopen(fileno(stdout), outmode);
- if (file == NULL) error("can't gzdopen stdout");
- gz_compress(stdin, file);
- }
- } else {
- if (copyout) {
- SET_BINARY_MODE(stdout);
- }
- do {
- if (uncompr) {
- if (copyout) {
- file = gzopen(*argv, "rb");
- if (file == NULL)
- fprintf(stderr, "%s: can't gzopen %s\n", prog, *argv);
- else
- gz_uncompress(file, stdout);
- } else {
- file_uncompress(*argv);
- }
- } else {
- if (copyout) {
- FILE * in = fopen(*argv, "rb");
-
- if (in == NULL) {
- perror(*argv);
- } else {
- file = gzdopen(fileno(stdout), outmode);
- if (file == NULL) error("can't gzdopen stdout");
-
- gz_compress(in, file);
- }
-
- } else {
- file_compress(*argv, outmode);
- }
- }
- } while (argv++, --argc);
- }
- return 0;
-}
diff --git a/src/3rdparty/zlib/qt_attribution.json b/src/3rdparty/zlib/qt_attribution.json
index a10fd1921f..ce3fa50f35 100644
--- a/src/3rdparty/zlib/qt_attribution.json
+++ b/src/3rdparty/zlib/qt_attribution.json
@@ -6,10 +6,10 @@
"Description": "zlib is a general purpose data compression library.",
"Homepage": "http://zlib.net/",
- "Version": "1.2.5",
+ "Version": "1.2.11",
"License": "ZLib license",
"LicenseId": "Zlib",
"LicenseFile": "LICENSE",
- "Copyright": "(C) 1995-2010 Jean-loup Gailly and Mark Adler"
+ "Copyright": "(C) 1995-2017 Jean-loup Gailly and Mark Adler"
}
diff --git a/src/3rdparty/zlib/qtpatches.diff b/src/3rdparty/zlib/qtpatches.diff
new file mode 100644
index 0000000000..105dda967c
--- /dev/null
+++ b/src/3rdparty/zlib/qtpatches.diff
@@ -0,0 +1,154 @@
+diff -ruN orig/ChangeLog src/ChangeLog
+--- orig/ChangeLog 2017-08-03 08:25:11.347386101 +0200
++++ src/ChangeLog 2017-08-03 08:25:21.477268439 +0200
+@@ -1,6 +1,10 @@
+
+ ChangeLog file for zlib
+
++Changes in 1.2.11 (Qt) (28 Jul 2017)
++- This is a stripped down copy of zlib that contains patches to
++ make it compile as part of Qt. See also "qtpatches.diff".
++
+ Changes in 1.2.11 (15 Jan 2017)
+ - Fix deflate stored bug when pulling last block from window
+ - Permit immediate deflateParams changes before any deflate input
+diff -ruN orig/gzguts.h src/gzguts.h
+--- orig/gzguts.h 2017-08-03 08:25:11.347386101 +0200
++++ src/gzguts.h 2017-08-03 08:25:21.477268439 +0200
+@@ -3,6 +3,15 @@
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
++#ifdef _MSC_VER
++# ifndef _CRT_SECURE_NO_DEPRECATE
++# define _CRT_SECURE_NO_DEPRECATE
++# endif
++# ifndef _CRT_NONSTDC_NO_DEPRECATE
++# define _CRT_NONSTDC_NO_DEPRECATE
++# endif
++#endif
++
+ #ifdef _LARGEFILE64_SOURCE
+ # ifndef _LARGEFILE_SOURCE
+ # define _LARGEFILE_SOURCE 1
+@@ -12,6 +21,15 @@
+ # endif
+ #endif
+
++#ifndef QT_BOOTSTRAPPED
++# include <qconfig.h>
++#endif
++
++#ifdef QT_VISIBILITY_AVAILABLE
++#define HAVE_HIDDEN
++#endif
++
++
+ #ifdef HAVE_HIDDEN
+ # define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
+ #else
+diff -ruN orig/README src/README
+--- orig/README 2017-08-03 08:25:11.347386101 +0200
++++ src/README 2017-08-03 08:25:21.477268439 +0200
+@@ -6,6 +6,9 @@
+ http://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and
+ rfc1952 (gzip format).
+
++This is a stripped down copy of zlib that contains patches to make it compile
++as part of Qt. See also "qtpatches.diff".
++
+ All functions of the compression library are documented in the file zlib.h
+ (volunteer to write man pages welcome, contact zlib@gzip.org). A usage example
+ of the library is given in the file test/example.c which also tests that
+diff -ruN orig/zconf.h src/zconf.h
+--- orig/zconf.h 2017-08-03 08:25:11.347386101 +0200
++++ src/zconf.h 2017-08-03 08:25:21.477268439 +0200
+@@ -8,6 +8,9 @@
+ #ifndef ZCONF_H
+ #define ZCONF_H
+
++/* Since Qt Core must export these symbols, define Z_PREFIX to avoid clashes system zlib */
++#define Z_PREFIX
++
+ /*
+ * If you *really* need a unique prefix for all types and library functions,
+ * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
+@@ -136,6 +139,7 @@
+ # endif
+ # define zlibCompileFlags z_zlibCompileFlags
+ # define zlibVersion z_zlibVersion
++# define z_errmsg z_z_errmsg
+
+ /* all zlib typedefs in zlib.h and zconf.h */
+ # define Byte z_Byte
+@@ -431,7 +435,7 @@
+ typedef unsigned long z_crc_t;
+ #endif
+
+-#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */
++#if defined(HAVE_UNISTD_H) || !defined(WIN32)
+ # define Z_HAVE_UNISTD_H
+ #endif
+
+diff -ruN orig/zlib.h src/zlib.h
+--- orig/zlib.h 2017-08-03 08:25:11.347386101 +0200
++++ src/zlib.h 2017-08-03 08:25:21.480601733 +0200
+@@ -33,12 +33,16 @@
+
+ #include "zconf.h"
+
++#include <qglobal.h>
++#undef ZEXTERN
++#define ZEXTERN Q_CORE_EXPORT
++
+ #ifdef __cplusplus
+ extern "C" {
+ #endif
+
+-#define ZLIB_VERSION "1.2.11"
+-#define ZLIB_VERNUM 0x12b0
++#define ZLIB_VERSION "1.2.11 (Qt)"
++#define ZLIB_VERNUM 0x12b0f
+ #define ZLIB_VER_MAJOR 1
+ #define ZLIB_VER_MINOR 2
+ #define ZLIB_VER_REVISION 11
+diff -ruN orig/zutil.h src/zutil.h
+--- orig/zutil.h 2017-08-03 08:25:11.347386101 +0200
++++ src/zutil.h 2017-08-03 08:30:04.490657570 +0200
+@@ -13,6 +13,15 @@
+ #ifndef ZUTIL_H
+ #define ZUTIL_H
+
++#ifndef QT_BOOTSTRAPPED
++# include <qconfig.h>
++#endif
++
++#ifdef QT_VISIBILITY_AVAILABLE
++#define HAVE_HIDDEN
++#endif
++
++
+ #ifdef HAVE_HIDDEN
+ # define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
+ #else
+@@ -136,6 +145,11 @@
+ # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
+ # include <unix.h> /* for fdopen */
+ # else
++// We need to include stdio.h here because zlib.h will include TargetConditionals.h
++// This will define TARGET_OS_MAC that leads to this check.
++// Since zutil.h will include gzguts.h and gzguts.h includes stdio.h
++// AFTER check for fdopen we need to include stdio.h directly
++# include <stdio.h>
+ # ifndef fdopen
+ # define fdopen(fd,mode) NULL /* No fdopen() */
+ # endif
+@@ -159,7 +173,7 @@
+ # define OS_CODE 18
+ #endif
+
+-#ifdef __APPLE__
++#if defined(__APPLE__) && !defined(OS_CODE)
+ # define OS_CODE 19
+ #endif
+
diff --git a/src/3rdparty/zlib/ChangeLog b/src/3rdparty/zlib/src/ChangeLog
index f310bb0fcd..251a32262f 100644
--- a/src/3rdparty/zlib/ChangeLog
+++ b/src/3rdparty/zlib/src/ChangeLog
@@ -1,12 +1,323 @@
ChangeLog file for zlib
+Changes in 1.2.11 (Qt) (28 Jul 2017)
+- This is a stripped down copy of zlib that contains patches to
+ make it compile as part of Qt. See also "qtpatches.diff".
+
+Changes in 1.2.11 (15 Jan 2017)
+- Fix deflate stored bug when pulling last block from window
+- Permit immediate deflateParams changes before any deflate input
+
+Changes in 1.2.10 (2 Jan 2017)
+- Avoid warnings on snprintf() return value
+- Fix bug in deflate_stored() for zero-length input
+- Fix bug in gzwrite.c that produced corrupt gzip files
+- Remove files to be installed before copying them in Makefile.in
+- Add warnings when compiling with assembler code
+
+Changes in 1.2.9 (31 Dec 2016)
+- Fix contrib/minizip to permit unzipping with desktop API [Zouzou]
+- Improve contrib/blast to return unused bytes
+- Assure that gzoffset() is correct when appending
+- Improve compress() and uncompress() to support large lengths
+- Fix bug in test/example.c where error code not saved
+- Remedy Coverity warning [Randers-Pehrson]
+- Improve speed of gzprintf() in transparent mode
+- Fix inflateInit2() bug when windowBits is 16 or 32
+- Change DEBUG macro to ZLIB_DEBUG
+- Avoid uninitialized access by gzclose_w()
+- Allow building zlib outside of the source directory
+- Fix bug that accepted invalid zlib header when windowBits is zero
+- Fix gzseek() problem on MinGW due to buggy _lseeki64 there
+- Loop on write() calls in gzwrite.c in case of non-blocking I/O
+- Add --warn (-w) option to ./configure for more compiler warnings
+- Reject a window size of 256 bytes if not using the zlib wrapper
+- Fix bug when level 0 used with Z_HUFFMAN or Z_RLE
+- Add --debug (-d) option to ./configure to define ZLIB_DEBUG
+- Fix bugs in creating a very large gzip header
+- Add uncompress2() function, which returns the input size used
+- Assure that deflateParams() will not switch functions mid-block
+- Dramatically speed up deflation for level 0 (storing)
+- Add gzfread(), duplicating the interface of fread()
+- Add gzfwrite(), duplicating the interface of fwrite()
+- Add deflateGetDictionary() function
+- Use snprintf() for later versions of Microsoft C
+- Fix *Init macros to use z_ prefix when requested
+- Replace as400 with os400 for OS/400 support [Monnerat]
+- Add crc32_z() and adler32_z() functions with size_t lengths
+- Update Visual Studio project files [AraHaan]
+
+Changes in 1.2.8 (28 Apr 2013)
+- Update contrib/minizip/iowin32.c for Windows RT [Vollant]
+- Do not force Z_CONST for C++
+- Clean up contrib/vstudio [Roß]
+- Correct spelling error in zlib.h
+- Fix mixed line endings in contrib/vstudio
+
+Changes in 1.2.7.3 (13 Apr 2013)
+- Fix version numbers and DLL names in contrib/vstudio/*/zlib.rc
+
+Changes in 1.2.7.2 (13 Apr 2013)
+- Change check for a four-byte type back to hexadecimal
+- Fix typo in win32/Makefile.msc
+- Add casts in gzwrite.c for pointer differences
+
+Changes in 1.2.7.1 (24 Mar 2013)
+- Replace use of unsafe string functions with snprintf if available
+- Avoid including stddef.h on Windows for Z_SOLO compile [Niessink]
+- Fix gzgetc undefine when Z_PREFIX set [Turk]
+- Eliminate use of mktemp in Makefile (not always available)
+- Fix bug in 'F' mode for gzopen()
+- Add inflateGetDictionary() function
+- Correct comment in deflate.h
+- Use _snprintf for snprintf in Microsoft C
+- On Darwin, only use /usr/bin/libtool if libtool is not Apple
+- Delete "--version" file if created by "ar --version" [Richard G.]
+- Fix configure check for veracity of compiler error return codes
+- Fix CMake compilation of static lib for MSVC2010 x64
+- Remove unused variable in infback9.c
+- Fix argument checks in gzlog_compress() and gzlog_write()
+- Clean up the usage of z_const and respect const usage within zlib
+- Clean up examples/gzlog.[ch] comparisons of different types
+- Avoid shift equal to bits in type (caused endless loop)
+- Fix uninitialized value bug in gzputc() introduced by const patches
+- Fix memory allocation error in examples/zran.c [Nor]
+- Fix bug where gzopen(), gzclose() would write an empty file
+- Fix bug in gzclose() when gzwrite() runs out of memory
+- Check for input buffer malloc failure in examples/gzappend.c
+- Add note to contrib/blast to use binary mode in stdio
+- Fix comparisons of differently signed integers in contrib/blast
+- Check for invalid code length codes in contrib/puff
+- Fix serious but very rare decompression bug in inftrees.c
+- Update inflateBack() comments, since inflate() can be faster
+- Use underscored I/O function names for WINAPI_FAMILY
+- Add _tr_flush_bits to the external symbols prefixed by --zprefix
+- Add contrib/vstudio/vc10 pre-build step for static only
+- Quote --version-script argument in CMakeLists.txt
+- Don't specify --version-script on Apple platforms in CMakeLists.txt
+- Fix casting error in contrib/testzlib/testzlib.c
+- Fix types in contrib/minizip to match result of get_crc_table()
+- Simplify contrib/vstudio/vc10 with 'd' suffix
+- Add TOP support to win32/Makefile.msc
+- Suport i686 and amd64 assembler builds in CMakeLists.txt
+- Fix typos in the use of _LARGEFILE64_SOURCE in zconf.h
+- Add vc11 and vc12 build files to contrib/vstudio
+- Add gzvprintf() as an undocumented function in zlib
+- Fix configure for Sun shell
+- Remove runtime check in configure for four-byte integer type
+- Add casts and consts to ease user conversion to C++
+- Add man pages for minizip and miniunzip
+- In Makefile uninstall, don't rm if preceding cd fails
+- Do not return Z_BUF_ERROR if deflateParam() has nothing to write
+
+Changes in 1.2.7 (2 May 2012)
+- Replace use of memmove() with a simple copy for portability
+- Test for existence of strerror
+- Restore gzgetc_ for backward compatibility with 1.2.6
+- Fix build with non-GNU make on Solaris
+- Require gcc 4.0 or later on Mac OS X to use the hidden attribute
+- Include unistd.h for Watcom C
+- Use __WATCOMC__ instead of __WATCOM__
+- Do not use the visibility attribute if NO_VIZ defined
+- Improve the detection of no hidden visibility attribute
+- Avoid using __int64 for gcc or solo compilation
+- Cast to char * in gzprintf to avoid warnings [Zinser]
+- Fix make_vms.com for VAX [Zinser]
+- Don't use library or built-in byte swaps
+- Simplify test and use of gcc hidden attribute
+- Fix bug in gzclose_w() when gzwrite() fails to allocate memory
+- Add "x" (O_EXCL) and "e" (O_CLOEXEC) modes support to gzopen()
+- Fix bug in test/minigzip.c for configure --solo
+- Fix contrib/vstudio project link errors [Mohanathas]
+- Add ability to choose the builder in make_vms.com [Schweda]
+- Add DESTDIR support to mingw32 win32/Makefile.gcc
+- Fix comments in win32/Makefile.gcc for proper usage
+- Allow overriding the default install locations for cmake
+- Generate and install the pkg-config file with cmake
+- Build both a static and a shared version of zlib with cmake
+- Include version symbols for cmake builds
+- If using cmake with MSVC, add the source directory to the includes
+- Remove unneeded EXTRA_CFLAGS from win32/Makefile.gcc [Truta]
+- Move obsolete emx makefile to old [Truta]
+- Allow the use of -Wundef when compiling or using zlib
+- Avoid the use of the -u option with mktemp
+- Improve inflate() documentation on the use of Z_FINISH
+- Recognize clang as gcc
+- Add gzopen_w() in Windows for wide character path names
+- Rename zconf.h in CMakeLists.txt to move it out of the way
+- Add source directory in CMakeLists.txt for building examples
+- Look in build directory for zlib.pc in CMakeLists.txt
+- Remove gzflags from zlibvc.def in vc9 and vc10
+- Fix contrib/minizip compilation in the MinGW environment
+- Update ./configure for Solaris, support --64 [Mooney]
+- Remove -R. from Solaris shared build (possible security issue)
+- Avoid race condition for parallel make (-j) running example
+- Fix type mismatch between get_crc_table() and crc_table
+- Fix parsing of version with "-" in CMakeLists.txt [Snider, Ziegler]
+- Fix the path to zlib.map in CMakeLists.txt
+- Force the native libtool in Mac OS X to avoid GNU libtool [Beebe]
+- Add instructions to win32/Makefile.gcc for shared install [Torri]
+
+Changes in 1.2.6.1 (12 Feb 2012)
+- Avoid the use of the Objective-C reserved name "id"
+- Include io.h in gzguts.h for Microsoft compilers
+- Fix problem with ./configure --prefix and gzgetc macro
+- Include gz_header definition when compiling zlib solo
+- Put gzflags() functionality back in zutil.c
+- Avoid library header include in crc32.c for Z_SOLO
+- Use name in GCC_CLASSIC as C compiler for coverage testing, if set
+- Minor cleanup in contrib/minizip/zip.c [Vollant]
+- Update make_vms.com [Zinser]
+- Remove unnecessary gzgetc_ function
+- Use optimized byte swap operations for Microsoft and GNU [Snyder]
+- Fix minor typo in zlib.h comments [Rzesniowiecki]
+
+Changes in 1.2.6 (29 Jan 2012)
+- Update the Pascal interface in contrib/pascal
+- Fix function numbers for gzgetc_ in zlibvc.def files
+- Fix configure.ac for contrib/minizip [Schiffer]
+- Fix large-entry detection in minizip on 64-bit systems [Schiffer]
+- Have ./configure use the compiler return code for error indication
+- Fix CMakeLists.txt for cross compilation [McClure]
+- Fix contrib/minizip/zip.c for 64-bit architectures [Dalsnes]
+- Fix compilation of contrib/minizip on FreeBSD [Marquez]
+- Correct suggested usages in win32/Makefile.msc [Shachar, Horvath]
+- Include io.h for Turbo C / Borland C on all platforms [Truta]
+- Make version explicit in contrib/minizip/configure.ac [Bosmans]
+- Avoid warning for no encryption in contrib/minizip/zip.c [Vollant]
+- Minor cleanup up contrib/minizip/unzip.c [Vollant]
+- Fix bug when compiling minizip with C++ [Vollant]
+- Protect for long name and extra fields in contrib/minizip [Vollant]
+- Avoid some warnings in contrib/minizip [Vollant]
+- Add -I../.. -L../.. to CFLAGS for minizip and miniunzip
+- Add missing libs to minizip linker command
+- Add support for VPATH builds in contrib/minizip
+- Add an --enable-demos option to contrib/minizip/configure
+- Add the generation of configure.log by ./configure
+- Exit when required parameters not provided to win32/Makefile.gcc
+- Have gzputc return the character written instead of the argument
+- Use the -m option on ldconfig for BSD systems [Tobias]
+- Correct in zlib.map when deflateResetKeep was added
+
+Changes in 1.2.5.3 (15 Jan 2012)
+- Restore gzgetc function for binary compatibility
+- Do not use _lseeki64 under Borland C++ [Truta]
+- Update win32/Makefile.msc to build test/*.c [Truta]
+- Remove old/visualc6 given CMakefile and other alternatives
+- Update AS400 build files and documentation [Monnerat]
+- Update win32/Makefile.gcc to build test/*.c [Truta]
+- Permit stronger flushes after Z_BLOCK flushes
+- Avoid extraneous empty blocks when doing empty flushes
+- Permit Z_NULL arguments to deflatePending
+- Allow deflatePrime() to insert bits in the middle of a stream
+- Remove second empty static block for Z_PARTIAL_FLUSH
+- Write out all of the available bits when using Z_BLOCK
+- Insert the first two strings in the hash table after a flush
+
+Changes in 1.2.5.2 (17 Dec 2011)
+- fix ld error: unable to find version dependency 'ZLIB_1.2.5'
+- use relative symlinks for shared libs
+- Avoid searching past window for Z_RLE strategy
+- Assure that high-water mark initialization is always applied in deflate
+- Add assertions to fill_window() in deflate.c to match comments
+- Update python link in README
+- Correct spelling error in gzread.c
+- Fix bug in gzgets() for a concatenated empty gzip stream
+- Correct error in comment for gz_make()
+- Change gzread() and related to ignore junk after gzip streams
+- Allow gzread() and related to continue after gzclearerr()
+- Allow gzrewind() and gzseek() after a premature end-of-file
+- Simplify gzseek() now that raw after gzip is ignored
+- Change gzgetc() to a macro for speed (~40% speedup in testing)
+- Fix gzclose() to return the actual error last encountered
+- Always add large file support for windows
+- Include zconf.h for windows large file support
+- Include zconf.h.cmakein for windows large file support
+- Update zconf.h.cmakein on make distclean
+- Merge vestigial vsnprintf determination from zutil.h to gzguts.h
+- Clarify how gzopen() appends in zlib.h comments
+- Correct documentation of gzdirect() since junk at end now ignored
+- Add a transparent write mode to gzopen() when 'T' is in the mode
+- Update python link in zlib man page
+- Get inffixed.h and MAKEFIXED result to match
+- Add a ./config --solo option to make zlib subset with no library use
+- Add undocumented inflateResetKeep() function for CAB file decoding
+- Add --cover option to ./configure for gcc coverage testing
+- Add #define ZLIB_CONST option to use const in the z_stream interface
+- Add comment to gzdopen() in zlib.h to use dup() when using fileno()
+- Note behavior of uncompress() to provide as much data as it can
+- Add files in contrib/minizip to aid in building libminizip
+- Split off AR options in Makefile.in and configure
+- Change ON macro to Z_ARG to avoid application conflicts
+- Facilitate compilation with Borland C++ for pragmas and vsnprintf
+- Include io.h for Turbo C / Borland C++
+- Move example.c and minigzip.c to test/
+- Simplify incomplete code table filling in inflate_table()
+- Remove code from inflate.c and infback.c that is impossible to execute
+- Test the inflate code with full coverage
+- Allow deflateSetDictionary, inflateSetDictionary at any time (in raw)
+- Add deflateResetKeep and fix inflateResetKeep to retain dictionary
+- Fix gzwrite.c to accommodate reduced memory zlib compilation
+- Have inflate() with Z_FINISH avoid the allocation of a window
+- Do not set strm->adler when doing raw inflate
+- Fix gzeof() to behave just like feof() when read is not past end of file
+- Fix bug in gzread.c when end-of-file is reached
+- Avoid use of Z_BUF_ERROR in gz* functions except for premature EOF
+- Document gzread() capability to read concurrently written files
+- Remove hard-coding of resource compiler in CMakeLists.txt [Blammo]
+
+Changes in 1.2.5.1 (10 Sep 2011)
+- Update FAQ entry on shared builds (#13)
+- Avoid symbolic argument to chmod in Makefile.in
+- Fix bug and add consts in contrib/puff [Oberhumer]
+- Update contrib/puff/zeros.raw test file to have all block types
+- Add full coverage test for puff in contrib/puff/Makefile
+- Fix static-only-build install in Makefile.in
+- Fix bug in unzGetCurrentFileInfo() in contrib/minizip [Kuno]
+- Add libz.a dependency to shared in Makefile.in for parallel builds
+- Spell out "number" (instead of "nb") in zlib.h for total_in, total_out
+- Replace $(...) with `...` in configure for non-bash sh [Bowler]
+- Add darwin* to Darwin* and solaris* to SunOS\ 5* in configure [Groffen]
+- Add solaris* to Linux* in configure to allow gcc use [Groffen]
+- Add *bsd* to Linux* case in configure [Bar-Lev]
+- Add inffast.obj to dependencies in win32/Makefile.msc
+- Correct spelling error in deflate.h [Kohler]
+- Change libzdll.a again to libz.dll.a (!) in win32/Makefile.gcc
+- Add test to configure for GNU C looking for gcc in output of $cc -v
+- Add zlib.pc generation to win32/Makefile.gcc [Weigelt]
+- Fix bug in zlib.h for _FILE_OFFSET_BITS set and _LARGEFILE64_SOURCE not
+- Add comment in zlib.h that adler32_combine with len2 < 0 makes no sense
+- Make NO_DIVIDE option in adler32.c much faster (thanks to John Reiser)
+- Make stronger test in zconf.h to include unistd.h for LFS
+- Apply Darwin patches for 64-bit file offsets to contrib/minizip [Slack]
+- Fix zlib.h LFS support when Z_PREFIX used
+- Add updated as400 support (removed from old) [Monnerat]
+- Avoid deflate sensitivity to volatile input data
+- Avoid division in adler32_combine for NO_DIVIDE
+- Clarify the use of Z_FINISH with deflateBound() amount of space
+- Set binary for output file in puff.c
+- Use u4 type for crc_table to avoid conversion warnings
+- Apply casts in zlib.h to avoid conversion warnings
+- Add OF to prototypes for adler32_combine_ and crc32_combine_ [Miller]
+- Improve inflateSync() documentation to note indeterminancy
+- Add deflatePending() function to return the amount of pending output
+- Correct the spelling of "specification" in FAQ [Randers-Pehrson]
+- Add a check in configure for stdarg.h, use for gzprintf()
+- Check that pointers fit in ints when gzprint() compiled old style
+- Add dummy name before $(SHAREDLIBV) in Makefile [Bar-Lev, Bowler]
+- Delete line in configure that adds -L. libz.a to LDFLAGS [Weigelt]
+- Add debug records in assmebler code [Londer]
+- Update RFC references to use http://tools.ietf.org/html/... [Li]
+- Add --archs option, use of libtool to configure for Mac OS X [Borstel]
+
Changes in 1.2.5 (19 Apr 2010)
- Disable visibility attribute in win32/Makefile.gcc [Bar-Lev]
- Default to libdir as sharedlibdir in configure [Nieder]
- Update copyright dates on modified source files
- Update trees.c to be able to generate modified trees.h
- Exit configure for MinGW, suggesting win32/Makefile.gcc
+- Check for NULL path in gz_open [Homurlu]
Changes in 1.2.4.5 (18 Apr 2010)
- Set sharedlibdir in configure [Torok]
@@ -261,7 +572,7 @@ Changes in 1.2.3.4 (21 Dec 2009)
- Clear bytes after deflate lookahead to avoid use of uninitialized data
- Change a limit in inftrees.c to be more transparent to Coverity Prevent
- Update win32/zlib.def with exported symbols from zlib.h
-- Correct spelling error in zlib.h [Willem]
+- Correct spelling errors in zlib.h [Willem, Sobrado]
- Allow Z_BLOCK for deflate() to force a new block
- Allow negative bits in inflatePrime() to delete existing bit buffer
- Add Z_TREES flush option to inflate() to return at end of trees
@@ -300,7 +611,7 @@ Changes in 1.2.3.1 (16 August 2006)
- Update make_vms.com [Zinser]
- Use -fPIC for shared build in configure [Teredesai, Nicholson]
- Use only major version number for libz.so on IRIX and OSF1 [Reinholdtsen]
-- Use fdopen() (not _fdopen()) for Interix in zutil.h [Bck]
+- Use fdopen() (not _fdopen()) for Interix in zutil.h [Bäck]
- Add some FAQ entries about the contrib directory
- Update the MVS question in the FAQ
- Avoid extraneous reads after EOF in gzio.c [Brown]
@@ -914,7 +1225,7 @@ Changes in 1.0.6 (19 Jan 1998)
386 asm code replacing longest_match().
contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
A C++ I/O streams interface to the zlib gz* functions
- contrib/iostream2/ by Tyge Lvset <Tyge.Lovset@cmr.no>
+ contrib/iostream2/ by Tyge Løvset <Tyge.Lovset@cmr.no>
Another C++ I/O streams interface
contrib/untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es>
A very simple tar.gz file extractor using zlib
@@ -1003,7 +1314,7 @@ Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion]
- fix array overlay in deflate.c which sometimes caused bad compressed data
- fix inflate bug with empty stored block
- fix MSDOS medium model which was broken in 0.99
-- fix deflateParams() which could generated bad compressed data.
+- fix deflateParams() which could generate bad compressed data.
- Bytef is define'd instead of typedef'ed (work around Borland bug)
- added an INDEX file
- new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32),
diff --git a/src/3rdparty/zlib/README b/src/3rdparty/zlib/src/README
index d4219bf889..4dc7436a3b 100644
--- a/src/3rdparty/zlib/README
+++ b/src/3rdparty/zlib/src/README
@@ -1,22 +1,25 @@
ZLIB DATA COMPRESSION LIBRARY
-zlib 1.2.5 is a general purpose data compression library. All the code is
+zlib 1.2.11 is a general purpose data compression library. All the code is
thread safe. The data format used by the zlib library is described by RFCs
(Request for Comments) 1950 to 1952 in the files
-http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format)
-and rfc1952.txt (gzip format).
+http://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and
+rfc1952 (gzip format).
+
+This is a stripped down copy of zlib that contains patches to make it compile
+as part of Qt. See also "qtpatches.diff".
All functions of the compression library are documented in the file zlib.h
(volunteer to write man pages welcome, contact zlib@gzip.org). A usage example
-of the library is given in the file example.c which also tests that the library
-is working correctly. Another example is given in the file minigzip.c. The
-compression library itself is composed of all source files except example.c and
-minigzip.c.
+of the library is given in the file test/example.c which also tests that
+the library is working correctly. Another example is given in the file
+test/minigzip.c. The compression library itself is composed of all source
+files in the root directory.
To compile all files and run the test program, follow the instructions given at
the top of Makefile.in. In short "./configure; make test", and if that goes
-well, "make install" should work for most flavors of Unix. For Windows, use one
-of the special makefiles in win32/ or contrib/vstudio/ . For VMS, use
+well, "make install" should work for most flavors of Unix. For Windows, use
+one of the special makefiles in win32/ or contrib/vstudio/ . For VMS, use
make_vms.com.
Questions about zlib should be sent to <zlib@gzip.org>, or to Gilles Vollant
@@ -31,7 +34,7 @@ Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan. 1997
issue of Dr. Dobb's Journal; a copy of the article is available at
http://marknelson.us/1997/01/01/zlib-engine/ .
-The changes made in version 1.2.5 are documented in the file ChangeLog.
+The changes made in version 1.2.11 are documented in the file ChangeLog.
Unsupported third party contributions are provided in directory contrib/ .
@@ -44,7 +47,7 @@ http://search.cpan.org/~pmqs/IO-Compress-Zlib/ .
A Python interface to zlib written by A.M. Kuchling <amk@amk.ca> is
available in Python 1.5 and later versions, see
-http://www.python.org/doc/lib/module-zlib.html .
+http://docs.python.org/library/zlib.html .
zlib is built into tcl: http://wiki.tcl.tk/4610 .
@@ -84,7 +87,7 @@ Acknowledgments:
Copyright notice:
- (C) 1995-2010 Jean-loup Gailly and Mark Adler
+ (C) 1995-2017 Jean-loup Gailly and Mark Adler
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
diff --git a/src/3rdparty/zlib/adler32.c b/src/3rdparty/zlib/src/adler32.c
index 65ad6a5adc..d0be4380a3 100644
--- a/src/3rdparty/zlib/adler32.c
+++ b/src/3rdparty/zlib/src/adler32.c
@@ -1,5 +1,5 @@
/* adler32.c -- compute the Adler-32 checksum of a data stream
- * Copyright (C) 1995-2007 Mark Adler
+ * Copyright (C) 1995-2011, 2016 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -7,11 +7,9 @@
#include "zutil.h"
-#define local static
+local uLong adler32_combine_ OF((uLong adler1, uLong adler2, z_off64_t len2));
-local uLong adler32_combine_(uLong adler1, uLong adler2, z_off64_t len2);
-
-#define BASE 65521UL /* largest prime smaller than 65536 */
+#define BASE 65521U /* largest prime smaller than 65536 */
#define NMAX 5552
/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */
@@ -21,46 +19,51 @@ local uLong adler32_combine_(uLong adler1, uLong adler2, z_off64_t len2);
#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4);
#define DO16(buf) DO8(buf,0); DO8(buf,8);
-/* use NO_DIVIDE if your processor does not do division in hardware */
+/* use NO_DIVIDE if your processor does not do division in hardware --
+ try it both ways to see which is faster */
#ifdef NO_DIVIDE
-# define MOD(a) \
+/* note that this assumes BASE is 65521, where 65536 % 65521 == 15
+ (thank you to John Reiser for pointing this out) */
+# define CHOP(a) \
do { \
- if (a >= (BASE << 16)) a -= (BASE << 16); \
- if (a >= (BASE << 15)) a -= (BASE << 15); \
- if (a >= (BASE << 14)) a -= (BASE << 14); \
- if (a >= (BASE << 13)) a -= (BASE << 13); \
- if (a >= (BASE << 12)) a -= (BASE << 12); \
- if (a >= (BASE << 11)) a -= (BASE << 11); \
- if (a >= (BASE << 10)) a -= (BASE << 10); \
- if (a >= (BASE << 9)) a -= (BASE << 9); \
- if (a >= (BASE << 8)) a -= (BASE << 8); \
- if (a >= (BASE << 7)) a -= (BASE << 7); \
- if (a >= (BASE << 6)) a -= (BASE << 6); \
- if (a >= (BASE << 5)) a -= (BASE << 5); \
- if (a >= (BASE << 4)) a -= (BASE << 4); \
- if (a >= (BASE << 3)) a -= (BASE << 3); \
- if (a >= (BASE << 2)) a -= (BASE << 2); \
- if (a >= (BASE << 1)) a -= (BASE << 1); \
+ unsigned long tmp = a >> 16; \
+ a &= 0xffffUL; \
+ a += (tmp << 4) - tmp; \
+ } while (0)
+# define MOD28(a) \
+ do { \
+ CHOP(a); \
if (a >= BASE) a -= BASE; \
} while (0)
-# define MOD4(a) \
+# define MOD(a) \
do { \
- if (a >= (BASE << 4)) a -= (BASE << 4); \
- if (a >= (BASE << 3)) a -= (BASE << 3); \
- if (a >= (BASE << 2)) a -= (BASE << 2); \
- if (a >= (BASE << 1)) a -= (BASE << 1); \
+ CHOP(a); \
+ MOD28(a); \
+ } while (0)
+# define MOD63(a) \
+ do { /* this assumes a is not negative */ \
+ z_off64_t tmp = a >> 32; \
+ a &= 0xffffffffL; \
+ a += (tmp << 8) - (tmp << 5) + tmp; \
+ tmp = a >> 16; \
+ a &= 0xffffL; \
+ a += (tmp << 4) - tmp; \
+ tmp = a >> 16; \
+ a &= 0xffffL; \
+ a += (tmp << 4) - tmp; \
if (a >= BASE) a -= BASE; \
} while (0)
#else
# define MOD(a) a %= BASE
-# define MOD4(a) a %= BASE
+# define MOD28(a) a %= BASE
+# define MOD63(a) a %= BASE
#endif
/* ========================================================================= */
-uLong ZEXPORT adler32(adler, buf, len)
+uLong ZEXPORT adler32_z(adler, buf, len)
uLong adler;
const Bytef *buf;
- uInt len;
+ z_size_t len;
{
unsigned long sum2;
unsigned n;
@@ -92,7 +95,7 @@ uLong ZEXPORT adler32(adler, buf, len)
}
if (adler >= BASE)
adler -= BASE;
- MOD4(sum2); /* only added so many BASE's */
+ MOD28(sum2); /* only added so many BASE's */
return adler | (sum2 << 16);
}
@@ -128,6 +131,15 @@ uLong ZEXPORT adler32(adler, buf, len)
}
/* ========================================================================= */
+uLong ZEXPORT adler32(adler, buf, len)
+ uLong adler;
+ const Bytef *buf;
+ uInt len;
+{
+ return adler32_z(adler, buf, len);
+}
+
+/* ========================================================================= */
local uLong adler32_combine_(adler1, adler2, len2)
uLong adler1;
uLong adler2;
@@ -137,8 +149,13 @@ local uLong adler32_combine_(adler1, adler2, len2)
unsigned long sum2;
unsigned rem;
+ /* for negative len, return invalid adler32 as a clue for debugging */
+ if (len2 < 0)
+ return 0xffffffffUL;
+
/* the derivation of this formula is left as an exercise for the reader */
- rem = (unsigned)(len2 % BASE);
+ MOD63(len2); /* assumes len2 >= 0 */
+ rem = (unsigned)len2;
sum1 = adler1 & 0xffff;
sum2 = rem * sum1;
MOD(sum2);
@@ -146,7 +163,7 @@ local uLong adler32_combine_(adler1, adler2, len2)
sum2 += ((adler1 >> 16) & 0xffff) + ((adler2 >> 16) & 0xffff) + BASE - rem;
if (sum1 >= BASE) sum1 -= BASE;
if (sum1 >= BASE) sum1 -= BASE;
- if (sum2 >= (BASE << 1)) sum2 -= (BASE << 1);
+ if (sum2 >= ((unsigned long)BASE << 1)) sum2 -= ((unsigned long)BASE << 1);
if (sum2 >= BASE) sum2 -= BASE;
return sum1 | (sum2 << 16);
}
diff --git a/src/3rdparty/zlib/compress.c b/src/3rdparty/zlib/src/compress.c
index ea4dfbe9d7..e2db404abf 100644
--- a/src/3rdparty/zlib/compress.c
+++ b/src/3rdparty/zlib/src/compress.c
@@ -1,5 +1,5 @@
/* compress.c -- compress a memory buffer
- * Copyright (C) 1995-2005 Jean-loup Gailly.
+ * Copyright (C) 1995-2005, 2014, 2016 Jean-loup Gailly, Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -28,16 +28,11 @@ int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
{
z_stream stream;
int err;
+ const uInt max = (uInt)-1;
+ uLong left;
- stream.next_in = (Bytef*)source;
- stream.avail_in = (uInt)sourceLen;
-#ifdef MAXSEG_64K
- /* Check for source > 64K on 16-bit machine: */
- if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;
-#endif
- stream.next_out = dest;
- stream.avail_out = (uInt)*destLen;
- if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR;
+ left = *destLen;
+ *destLen = 0;
stream.zalloc = (alloc_func)0;
stream.zfree = (free_func)0;
@@ -46,15 +41,26 @@ int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
err = deflateInit(&stream, level);
if (err != Z_OK) return err;
- err = deflate(&stream, Z_FINISH);
- if (err != Z_STREAM_END) {
- deflateEnd(&stream);
- return err == Z_OK ? Z_BUF_ERROR : err;
- }
- *destLen = stream.total_out;
+ stream.next_out = dest;
+ stream.avail_out = 0;
+ stream.next_in = (z_const Bytef *)source;
+ stream.avail_in = 0;
- err = deflateEnd(&stream);
- return err;
+ do {
+ if (stream.avail_out == 0) {
+ stream.avail_out = left > (uLong)max ? max : (uInt)left;
+ left -= stream.avail_out;
+ }
+ if (stream.avail_in == 0) {
+ stream.avail_in = sourceLen > (uLong)max ? max : (uInt)sourceLen;
+ sourceLen -= stream.avail_in;
+ }
+ err = deflate(&stream, sourceLen ? Z_NO_FLUSH : Z_FINISH);
+ } while (err == Z_OK);
+
+ *destLen = stream.total_out;
+ deflateEnd(&stream);
+ return err == Z_STREAM_END ? Z_OK : err;
}
/* ===========================================================================
diff --git a/src/3rdparty/zlib/crc32.c b/src/3rdparty/zlib/src/crc32.c
index 91be372d22..9580440c0e 100644
--- a/src/3rdparty/zlib/crc32.c
+++ b/src/3rdparty/zlib/src/crc32.c
@@ -1,5 +1,5 @@
/* crc32.c -- compute the CRC-32 of a data stream
- * Copyright (C) 1995-2006, 2010 Mark Adler
+ * Copyright (C) 1995-2006, 2010, 2011, 2012, 2016 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*
* Thanks to Rodney Brown <rbrown64@csc.com.au> for his contribution of faster
@@ -17,6 +17,8 @@
of the crc tables. Therefore, if you #define DYNAMIC_CRC_TABLE, you should
first call get_crc_table() to initialize the tables before allowing more than
one thread to use crc32().
+
+ DYNAMIC_CRC_TABLE and MAKECRCH can be #defined to write out crc32.h.
*/
#ifdef MAKECRCH
@@ -28,37 +30,15 @@
#include "zutil.h" /* for STDC and FAR definitions */
-#define local static
-
-/* Find a four-byte integer type for crc32_little() and crc32_big(). */
-#ifndef NOBYFOUR
-# ifdef STDC /* need ANSI C limits.h to determine sizes */
-# include <limits.h>
-# define BYFOUR
-# if (UINT_MAX == 0xffffffffUL)
- typedef unsigned int u4;
-# else
-# if (ULONG_MAX == 0xffffffffUL)
- typedef unsigned long u4;
-# else
-# if (USHRT_MAX == 0xffffffffUL)
- typedef unsigned short u4;
-# else
-# undef BYFOUR /* can't find a four-byte integer type! */
-# endif
-# endif
-# endif
-# endif /* STDC */
-#endif /* !NOBYFOUR */
-
/* Definitions for doing the crc four data bytes at a time. */
+#if !defined(NOBYFOUR) && defined(Z_U4)
+# define BYFOUR
+#endif
#ifdef BYFOUR
-# define REV(w) ((((w)>>24)&0xff)+(((w)>>8)&0xff00)+ \
- (((w)&0xff00)<<8)+(((w)&0xff)<<24))
local unsigned long crc32_little OF((unsigned long,
- const unsigned char FAR *, unsigned));
+ const unsigned char FAR *, z_size_t));
local unsigned long crc32_big OF((unsigned long,
- const unsigned char FAR *, unsigned));
+ const unsigned char FAR *, z_size_t));
# define TBLS 8
#else
# define TBLS 1
@@ -68,16 +48,16 @@
local unsigned long gf2_matrix_times OF((unsigned long *mat,
unsigned long vec));
local void gf2_matrix_square OF((unsigned long *square, unsigned long *mat));
-local uLong crc32_combine_(uLong crc1, uLong crc2, z_off64_t len2);
+local uLong crc32_combine_ OF((uLong crc1, uLong crc2, z_off64_t len2));
#ifdef DYNAMIC_CRC_TABLE
local volatile int crc_table_empty = 1;
-local unsigned long FAR crc_table[TBLS][256];
+local z_crc_t FAR crc_table[TBLS][256];
local void make_crc_table OF((void));
#ifdef MAKECRCH
- local void write_table OF((FILE *, const unsigned long FAR *));
+ local void write_table OF((FILE *, const z_crc_t FAR *));
#endif /* MAKECRCH */
/*
Generate tables for a byte-wise 32-bit CRC calculation on the polynomial:
@@ -107,9 +87,9 @@ local void make_crc_table OF((void));
*/
local void make_crc_table()
{
- unsigned long c;
+ z_crc_t c;
int n, k;
- unsigned long poly; /* polynomial exclusive-or pattern */
+ z_crc_t poly; /* polynomial exclusive-or pattern */
/* terms of polynomial defining this crc (except x^32): */
static volatile int first = 1; /* flag to limit concurrent making */
static const unsigned char p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26};
@@ -121,13 +101,13 @@ local void make_crc_table()
first = 0;
/* make exclusive-or pattern from polynomial (0xedb88320UL) */
- poly = 0UL;
- for (n = 0; n < sizeof(p)/sizeof(unsigned char); n++)
- poly |= 1UL << (31 - p[n]);
+ poly = 0;
+ for (n = 0; n < (int)(sizeof(p)/sizeof(unsigned char)); n++)
+ poly |= (z_crc_t)1 << (31 - p[n]);
/* generate a crc for every 8-bit value */
for (n = 0; n < 256; n++) {
- c = (unsigned long)n;
+ c = (z_crc_t)n;
for (k = 0; k < 8; k++)
c = c & 1 ? poly ^ (c >> 1) : c >> 1;
crc_table[0][n] = c;
@@ -138,11 +118,11 @@ local void make_crc_table()
and then the byte reversal of those as well as the first table */
for (n = 0; n < 256; n++) {
c = crc_table[0][n];
- crc_table[4][n] = REV(c);
+ crc_table[4][n] = ZSWAP32(c);
for (k = 1; k < 4; k++) {
c = crc_table[0][c & 0xff] ^ (c >> 8);
crc_table[k][n] = c;
- crc_table[k + 4][n] = REV(c);
+ crc_table[k + 4][n] = ZSWAP32(c);
}
}
#endif /* BYFOUR */
@@ -164,7 +144,7 @@ local void make_crc_table()
if (out == NULL) return;
fprintf(out, "/* crc32.h -- tables for rapid CRC calculation\n");
fprintf(out, " * Generated automatically by crc32.c\n */\n\n");
- fprintf(out, "local const unsigned long FAR ");
+ fprintf(out, "local const z_crc_t FAR ");
fprintf(out, "crc_table[TBLS][256] =\n{\n {\n");
write_table(out, crc_table[0]);
# ifdef BYFOUR
@@ -184,12 +164,13 @@ local void make_crc_table()
#ifdef MAKECRCH
local void write_table(out, table)
FILE *out;
- const unsigned long FAR *table;
+ const z_crc_t FAR *table;
{
int n;
for (n = 0; n < 256; n++)
- fprintf(out, "%s0x%08lxUL%s", n % 5 ? "" : " ", table[n],
+ fprintf(out, "%s0x%08lxUL%s", n % 5 ? "" : " ",
+ (unsigned long)(table[n]),
n == 255 ? "\n" : (n % 5 == 4 ? ",\n" : ", "));
}
#endif /* MAKECRCH */
@@ -204,13 +185,13 @@ local void write_table(out, table)
/* =========================================================================
* This function can be used by asm versions of crc32()
*/
-const unsigned long FAR * ZEXPORT get_crc_table()
+const z_crc_t FAR * ZEXPORT get_crc_table()
{
#ifdef DYNAMIC_CRC_TABLE
if (crc_table_empty)
make_crc_table();
#endif /* DYNAMIC_CRC_TABLE */
- return (const unsigned long FAR *)crc_table;
+ return (const z_crc_t FAR *)crc_table;
}
/* ========================================================================= */
@@ -218,10 +199,10 @@ const unsigned long FAR * ZEXPORT get_crc_table()
#define DO8 DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1
/* ========================================================================= */
-unsigned long ZEXPORT crc32(crc, buf, len)
+unsigned long ZEXPORT crc32_z(crc, buf, len)
unsigned long crc;
const unsigned char FAR *buf;
- uInt len;
+ z_size_t len;
{
if (buf == Z_NULL) return 0UL;
@@ -232,7 +213,7 @@ unsigned long ZEXPORT crc32(crc, buf, len)
#ifdef BYFOUR
if (sizeof(void *) == sizeof(ptrdiff_t)) {
- u4 endian;
+ z_crc_t endian;
endian = 1;
if (*((unsigned char *)(&endian)))
@@ -252,8 +233,29 @@ unsigned long ZEXPORT crc32(crc, buf, len)
return crc ^ 0xffffffffUL;
}
+/* ========================================================================= */
+unsigned long ZEXPORT crc32(crc, buf, len)
+ unsigned long crc;
+ const unsigned char FAR *buf;
+ uInt len;
+{
+ return crc32_z(crc, buf, len);
+}
+
#ifdef BYFOUR
+/*
+ This BYFOUR code accesses the passed unsigned char * buffer with a 32-bit
+ integer pointer type. This violates the strict aliasing rule, where a
+ compiler can assume, for optimization purposes, that two pointers to
+ fundamentally different types won't ever point to the same memory. This can
+ manifest as a problem only if one of the pointers is written to. This code
+ only reads from those pointers. So long as this code remains isolated in
+ this compilation unit, there won't be a problem. For this reason, this code
+ should not be copied and pasted into a compilation unit in which other code
+ writes to the buffer that is passed to these routines.
+ */
+
/* ========================================================================= */
#define DOLIT4 c ^= *buf4++; \
c = crc_table[3][c & 0xff] ^ crc_table[2][(c >> 8) & 0xff] ^ \
@@ -264,19 +266,19 @@ unsigned long ZEXPORT crc32(crc, buf, len)
local unsigned long crc32_little(crc, buf, len)
unsigned long crc;
const unsigned char FAR *buf;
- unsigned len;
+ z_size_t len;
{
- register u4 c;
- register const u4 FAR *buf4;
+ register z_crc_t c;
+ register const z_crc_t FAR *buf4;
- c = (u4)crc;
+ c = (z_crc_t)crc;
c = ~c;
while (len && ((ptrdiff_t)buf & 3)) {
c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8);
len--;
}
- buf4 = (const u4 FAR *)(const void FAR *)buf;
+ buf4 = (const z_crc_t FAR *)(const void FAR *)buf;
while (len >= 32) {
DOLIT32;
len -= 32;
@@ -295,7 +297,7 @@ local unsigned long crc32_little(crc, buf, len)
}
/* ========================================================================= */
-#define DOBIG4 c ^= *++buf4; \
+#define DOBIG4 c ^= *buf4++; \
c = crc_table[4][c & 0xff] ^ crc_table[5][(c >> 8) & 0xff] ^ \
crc_table[6][(c >> 16) & 0xff] ^ crc_table[7][c >> 24]
#define DOBIG32 DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4
@@ -304,20 +306,19 @@ local unsigned long crc32_little(crc, buf, len)
local unsigned long crc32_big(crc, buf, len)
unsigned long crc;
const unsigned char FAR *buf;
- unsigned len;
+ z_size_t len;
{
- register u4 c;
- register const u4 FAR *buf4;
+ register z_crc_t c;
+ register const z_crc_t FAR *buf4;
- c = REV((u4)crc);
+ c = ZSWAP32((z_crc_t)crc);
c = ~c;
while (len && ((ptrdiff_t)buf & 3)) {
c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8);
len--;
}
- buf4 = (const u4 FAR *)(const void FAR *)buf;
- buf4--;
+ buf4 = (const z_crc_t FAR *)(const void FAR *)buf;
while (len >= 32) {
DOBIG32;
len -= 32;
@@ -326,14 +327,13 @@ local unsigned long crc32_big(crc, buf, len)
DOBIG4;
len -= 4;
}
- buf4++;
buf = (const unsigned char FAR *)buf4;
if (len) do {
c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8);
} while (--len);
c = ~c;
- return (unsigned long)(REV(c));
+ return (unsigned long)(ZSWAP32(c));
}
#endif /* BYFOUR */
diff --git a/src/3rdparty/zlib/crc32.h b/src/3rdparty/zlib/src/crc32.h
index 8053b6117c..9e0c778102 100644
--- a/src/3rdparty/zlib/crc32.h
+++ b/src/3rdparty/zlib/src/crc32.h
@@ -2,7 +2,7 @@
* Generated automatically by crc32.c
*/
-local const unsigned long FAR crc_table[TBLS][256] =
+local const z_crc_t FAR crc_table[TBLS][256] =
{
{
0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
diff --git a/src/3rdparty/zlib/deflate.c b/src/3rdparty/zlib/src/deflate.c
index 5c4022f3d4..1ec761448d 100644
--- a/src/3rdparty/zlib/deflate.c
+++ b/src/3rdparty/zlib/src/deflate.c
@@ -1,5 +1,5 @@
/* deflate.c -- compress data using the deflation algorithm
- * Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler
+ * Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -37,7 +37,7 @@
* REFERENCES
*
* Deutsch, L.P.,"DEFLATE Compressed Data Format Specification".
- * Available in http://www.ietf.org/rfc/rfc1951.txt
+ * Available in http://tools.ietf.org/html/rfc1951
*
* A description of the Rabin and Karp algorithm is given in the book
* "Algorithms" by R. Sedgewick, Addison-Wesley, p252.
@@ -52,7 +52,7 @@
#include "deflate.h"
const char deflate_copyright[] =
- " deflate 1.2.5 Copyright 1995-2010 Jean-loup Gailly and Mark Adler ";
+ " deflate 1.2.11 Copyright 1995-2017 Jean-loup Gailly and Mark Adler ";
/*
If you use the zlib library in a product, an acknowledgment is welcome
in the documentation of your product. If for some reason you cannot
@@ -73,6 +73,8 @@ typedef enum {
typedef block_state (*compress_func) OF((deflate_state *s, int flush));
/* Compression function. Returns the block state after the call. */
+local int deflateStateCheck OF((z_streamp strm));
+local void slide_hash OF((deflate_state *s));
local void fill_window OF((deflate_state *s));
local block_state deflate_stored OF((deflate_state *s, int flush));
local block_state deflate_fast OF((deflate_state *s, int flush));
@@ -84,15 +86,16 @@ local block_state deflate_huff OF((deflate_state *s, int flush));
local void lm_init OF((deflate_state *s));
local void putShortMSB OF((deflate_state *s, uInt b));
local void flush_pending OF((z_streamp strm));
-local int read_buf OF((z_streamp strm, Bytef *buf, unsigned size));
+local unsigned read_buf OF((z_streamp strm, Bytef *buf, unsigned size));
#ifdef ASMV
+# pragma message("Assembler code may have bugs -- use at your own risk")
void match_init OF((void)); /* asm code initialization */
uInt longest_match OF((deflate_state *s, IPos cur_match));
#else
local uInt longest_match OF((deflate_state *s, IPos cur_match));
#endif
-#ifdef DEBUG
+#ifdef ZLIB_DEBUG
local void check_match OF((deflate_state *s, IPos start, IPos match,
int length));
#endif
@@ -148,18 +151,14 @@ local const config configuration_table[10] = {
* meaning.
*/
-#define EQUAL 0
-/* result of memcmp for equal strings */
-
-#ifndef NO_DUMMY_DECL
-struct static_tree_desc_s {int dummy;}; /* for buggy compilers */
-#endif
+/* rank Z_BLOCK between Z_NO_FLUSH and Z_PARTIAL_FLUSH */
+#define RANK(f) (((f) * 2) - ((f) > 4 ? 9 : 0))
/* ===========================================================================
* Update a hash value with the given input byte
- * IN assertion: all calls to to UPDATE_HASH are made with consecutive
- * input characters, so that a running hash key can be computed from the
- * previous key instead of complete recalculation each time.
+ * IN assertion: all calls to UPDATE_HASH are made with consecutive input
+ * characters, so that a running hash key can be computed from the previous
+ * key instead of complete recalculation each time.
*/
#define UPDATE_HASH(s,h,c) (h = (((h)<<s->hash_shift) ^ (c)) & s->hash_mask)
@@ -170,9 +169,9 @@ struct static_tree_desc_s {int dummy;}; /* for buggy compilers */
* the previous length of the hash chain.
* If this file is compiled with -DFASTEST, the compression level is forced
* to 1, and no hash chains are maintained.
- * IN assertion: all calls to to INSERT_STRING are made with consecutive
- * input characters and the first MIN_MATCH bytes of str are valid
- * (except for the last MIN_MATCH-1 bytes of the input file).
+ * IN assertion: all calls to INSERT_STRING are made with consecutive input
+ * characters and the first MIN_MATCH bytes of str are valid (except for
+ * the last MIN_MATCH-1 bytes of the input file).
*/
#ifdef FASTEST
#define INSERT_STRING(s, str, match_head) \
@@ -194,6 +193,37 @@ struct static_tree_desc_s {int dummy;}; /* for buggy compilers */
s->head[s->hash_size-1] = NIL; \
zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head));
+/* ===========================================================================
+ * Slide the hash table when sliding the window down (could be avoided with 32
+ * bit values at the expense of memory usage). We slide even when level == 0 to
+ * keep the hash table consistent if we switch back to level > 0 later.
+ */
+local void slide_hash(s)
+ deflate_state *s;
+{
+ unsigned n, m;
+ Posf *p;
+ uInt wsize = s->w_size;
+
+ n = s->hash_size;
+ p = &s->head[n];
+ do {
+ m = *--p;
+ *p = (Pos)(m >= wsize ? m - wsize : NIL);
+ } while (--n);
+ n = wsize;
+#ifndef FASTEST
+ p = &s->prev[n];
+ do {
+ m = *--p;
+ *p = (Pos)(m >= wsize ? m - wsize : NIL);
+ /* If n is not on any hash chain, prev[n] is garbage but
+ * its value will never be used.
+ */
+ } while (--n);
+#endif
+}
+
/* ========================================================================= */
int ZEXPORT deflateInit_(strm, level, version, stream_size)
z_streamp strm;
@@ -235,10 +265,19 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
strm->msg = Z_NULL;
if (strm->zalloc == (alloc_func)0) {
+#ifdef Z_SOLO
+ return Z_STREAM_ERROR;
+#else
strm->zalloc = zcalloc;
strm->opaque = (voidpf)0;
+#endif
}
- if (strm->zfree == (free_func)0) strm->zfree = zcfree;
+ if (strm->zfree == (free_func)0)
+#ifdef Z_SOLO
+ return Z_STREAM_ERROR;
+#else
+ strm->zfree = zcfree;
+#endif
#ifdef FASTEST
if (level != 0) level = 1;
@@ -258,7 +297,7 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
#endif
if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED ||
windowBits < 8 || windowBits > 15 || level < 0 || level > 9 ||
- strategy < 0 || strategy > Z_FIXED) {
+ strategy < 0 || strategy > Z_FIXED || (windowBits == 8 && wrap != 1)) {
return Z_STREAM_ERROR;
}
if (windowBits == 8) windowBits = 9; /* until 256-byte window bug fixed */
@@ -266,14 +305,15 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
if (s == Z_NULL) return Z_MEM_ERROR;
strm->state = (struct internal_state FAR *)s;
s->strm = strm;
+ s->status = INIT_STATE; /* to pass state test in deflateReset() */
s->wrap = wrap;
s->gzhead = Z_NULL;
- s->w_bits = windowBits;
+ s->w_bits = (uInt)windowBits;
s->w_size = 1 << s->w_bits;
s->w_mask = s->w_size - 1;
- s->hash_bits = memLevel + 7;
+ s->hash_bits = (uInt)memLevel + 7;
s->hash_size = 1 << s->hash_bits;
s->hash_mask = s->hash_size - 1;
s->hash_shift = ((s->hash_bits+MIN_MATCH-1)/MIN_MATCH);
@@ -293,7 +333,7 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL ||
s->pending_buf == Z_NULL) {
s->status = FINISH_STATE;
- strm->msg = (char*)ERR_MSG(Z_MEM_ERROR);
+ strm->msg = ERR_MSG(Z_MEM_ERROR);
deflateEnd (strm);
return Z_MEM_ERROR;
}
@@ -307,6 +347,31 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
return deflateReset(strm);
}
+/* =========================================================================
+ * Check for a valid deflate stream state. Return 0 if ok, 1 if not.
+ */
+local int deflateStateCheck (strm)
+ z_streamp strm;
+{
+ deflate_state *s;
+ if (strm == Z_NULL ||
+ strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0)
+ return 1;
+ s = strm->state;
+ if (s == Z_NULL || s->strm != strm || (s->status != INIT_STATE &&
+#ifdef GZIP
+ s->status != GZIP_STATE &&
+#endif
+ s->status != EXTRA_STATE &&
+ s->status != NAME_STATE &&
+ s->status != COMMENT_STATE &&
+ s->status != HCRC_STATE &&
+ s->status != BUSY_STATE &&
+ s->status != FINISH_STATE))
+ return 1;
+ return 0;
+}
+
/* ========================================================================= */
int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
z_streamp strm;
@@ -314,49 +379,97 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
uInt dictLength;
{
deflate_state *s;
- uInt length = dictLength;
- uInt n;
- IPos hash_head = 0;
+ uInt str, n;
+ int wrap;
+ unsigned avail;
+ z_const unsigned char *next;
- if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL ||
- strm->state->wrap == 2 ||
- (strm->state->wrap == 1 && strm->state->status != INIT_STATE))
+ if (deflateStateCheck(strm) || dictionary == Z_NULL)
return Z_STREAM_ERROR;
-
s = strm->state;
- if (s->wrap)
- strm->adler = adler32(strm->adler, dictionary, dictLength);
+ wrap = s->wrap;
+ if (wrap == 2 || (wrap == 1 && s->status != INIT_STATE) || s->lookahead)
+ return Z_STREAM_ERROR;
- if (length < MIN_MATCH) return Z_OK;
- if (length > s->w_size) {
- length = s->w_size;
- dictionary += dictLength - length; /* use the tail of the dictionary */
+ /* when using zlib wrappers, compute Adler-32 for provided dictionary */
+ if (wrap == 1)
+ strm->adler = adler32(strm->adler, dictionary, dictLength);
+ s->wrap = 0; /* avoid computing Adler-32 in read_buf */
+
+ /* if dictionary would fill window, just replace the history */
+ if (dictLength >= s->w_size) {
+ if (wrap == 0) { /* already empty otherwise */
+ CLEAR_HASH(s);
+ s->strstart = 0;
+ s->block_start = 0L;
+ s->insert = 0;
+ }
+ dictionary += dictLength - s->w_size; /* use the tail */
+ dictLength = s->w_size;
}
- zmemcpy(s->window, dictionary, length);
- s->strstart = length;
- s->block_start = (long)length;
- /* Insert all strings in the hash table (except for the last two bytes).
- * s->lookahead stays null, so s->ins_h will be recomputed at the next
- * call of fill_window.
- */
- s->ins_h = s->window[0];
- UPDATE_HASH(s, s->ins_h, s->window[1]);
- for (n = 0; n <= length - MIN_MATCH; n++) {
- INSERT_STRING(s, n, hash_head);
+ /* insert dictionary into window and hash */
+ avail = strm->avail_in;
+ next = strm->next_in;
+ strm->avail_in = dictLength;
+ strm->next_in = (z_const Bytef *)dictionary;
+ fill_window(s);
+ while (s->lookahead >= MIN_MATCH) {
+ str = s->strstart;
+ n = s->lookahead - (MIN_MATCH-1);
+ do {
+ UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]);
+#ifndef FASTEST
+ s->prev[str & s->w_mask] = s->head[s->ins_h];
+#endif
+ s->head[s->ins_h] = (Pos)str;
+ str++;
+ } while (--n);
+ s->strstart = str;
+ s->lookahead = MIN_MATCH-1;
+ fill_window(s);
}
- if (hash_head) hash_head = 0; /* to make compiler happy */
+ s->strstart += s->lookahead;
+ s->block_start = (long)s->strstart;
+ s->insert = s->lookahead;
+ s->lookahead = 0;
+ s->match_length = s->prev_length = MIN_MATCH-1;
+ s->match_available = 0;
+ strm->next_in = next;
+ strm->avail_in = avail;
+ s->wrap = wrap;
return Z_OK;
}
/* ========================================================================= */
-int ZEXPORT deflateReset (strm)
+int ZEXPORT deflateGetDictionary (strm, dictionary, dictLength)
+ z_streamp strm;
+ Bytef *dictionary;
+ uInt *dictLength;
+{
+ deflate_state *s;
+ uInt len;
+
+ if (deflateStateCheck(strm))
+ return Z_STREAM_ERROR;
+ s = strm->state;
+ len = s->strstart + s->lookahead;
+ if (len > s->w_size)
+ len = s->w_size;
+ if (dictionary != Z_NULL && len)
+ zmemcpy(dictionary, s->window + s->strstart + s->lookahead - len, len);
+ if (dictLength != Z_NULL)
+ *dictLength = len;
+ return Z_OK;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateResetKeep (strm)
z_streamp strm;
{
deflate_state *s;
- if (strm == Z_NULL || strm->state == Z_NULL ||
- strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0) {
+ if (deflateStateCheck(strm)) {
return Z_STREAM_ERROR;
}
@@ -371,7 +484,11 @@ int ZEXPORT deflateReset (strm)
if (s->wrap < 0) {
s->wrap = -s->wrap; /* was made negative by deflate(..., Z_FINISH); */
}
- s->status = s->wrap ? INIT_STATE : BUSY_STATE;
+ s->status =
+#ifdef GZIP
+ s->wrap == 2 ? GZIP_STATE :
+#endif
+ s->wrap ? INIT_STATE : BUSY_STATE;
strm->adler =
#ifdef GZIP
s->wrap == 2 ? crc32(0L, Z_NULL, 0) :
@@ -380,31 +497,70 @@ int ZEXPORT deflateReset (strm)
s->last_flush = Z_NO_FLUSH;
_tr_init(s);
- lm_init(s);
return Z_OK;
}
/* ========================================================================= */
+int ZEXPORT deflateReset (strm)
+ z_streamp strm;
+{
+ int ret;
+
+ ret = deflateResetKeep(strm);
+ if (ret == Z_OK)
+ lm_init(strm->state);
+ return ret;
+}
+
+/* ========================================================================= */
int ZEXPORT deflateSetHeader (strm, head)
z_streamp strm;
gz_headerp head;
{
- if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
- if (strm->state->wrap != 2) return Z_STREAM_ERROR;
+ if (deflateStateCheck(strm) || strm->state->wrap != 2)
+ return Z_STREAM_ERROR;
strm->state->gzhead = head;
return Z_OK;
}
/* ========================================================================= */
+int ZEXPORT deflatePending (strm, pending, bits)
+ unsigned *pending;
+ int *bits;
+ z_streamp strm;
+{
+ if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
+ if (pending != Z_NULL)
+ *pending = strm->state->pending;
+ if (bits != Z_NULL)
+ *bits = strm->state->bi_valid;
+ return Z_OK;
+}
+
+/* ========================================================================= */
int ZEXPORT deflatePrime (strm, bits, value)
z_streamp strm;
int bits;
int value;
{
- if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
- strm->state->bi_valid = bits;
- strm->state->bi_buf = (ush)(value & ((1 << bits) - 1));
+ deflate_state *s;
+ int put;
+
+ if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
+ s = strm->state;
+ if ((Bytef *)(s->d_buf) < s->pending_out + ((Buf_size + 7) >> 3))
+ return Z_BUF_ERROR;
+ do {
+ put = Buf_size - s->bi_valid;
+ if (put > bits)
+ put = bits;
+ s->bi_buf |= (ush)((value & ((1 << put) - 1)) << s->bi_valid);
+ s->bi_valid += put;
+ _tr_flush_bits(s);
+ value >>= put;
+ bits -= put;
+ } while (bits);
return Z_OK;
}
@@ -416,9 +572,8 @@ int ZEXPORT deflateParams(strm, level, strategy)
{
deflate_state *s;
compress_func func;
- int err = Z_OK;
- if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+ if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
s = strm->state;
#ifdef FASTEST
@@ -432,11 +587,22 @@ int ZEXPORT deflateParams(strm, level, strategy)
func = configuration_table[s->level].func;
if ((strategy != s->strategy || func != configuration_table[level].func) &&
- strm->total_in != 0) {
+ s->high_water) {
/* Flush the last buffer: */
- err = deflate(strm, Z_BLOCK);
+ int err = deflate(strm, Z_BLOCK);
+ if (err == Z_STREAM_ERROR)
+ return err;
+ if (strm->avail_out == 0)
+ return Z_BUF_ERROR;
}
if (s->level != level) {
+ if (s->level == 0 && s->matches != 0) {
+ if (s->matches == 1)
+ slide_hash(s);
+ else
+ CLEAR_HASH(s);
+ s->matches = 0;
+ }
s->level = level;
s->max_lazy_match = configuration_table[level].max_lazy;
s->good_match = configuration_table[level].good_length;
@@ -444,7 +610,7 @@ int ZEXPORT deflateParams(strm, level, strategy)
s->max_chain_length = configuration_table[level].max_chain;
}
s->strategy = strategy;
- return err;
+ return Z_OK;
}
/* ========================================================================= */
@@ -457,12 +623,12 @@ int ZEXPORT deflateTune(strm, good_length, max_lazy, nice_length, max_chain)
{
deflate_state *s;
- if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+ if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
s = strm->state;
- s->good_match = good_length;
- s->max_lazy_match = max_lazy;
+ s->good_match = (uInt)good_length;
+ s->max_lazy_match = (uInt)max_lazy;
s->nice_match = nice_length;
- s->max_chain_length = max_chain;
+ s->max_chain_length = (uInt)max_chain;
return Z_OK;
}
@@ -489,14 +655,13 @@ uLong ZEXPORT deflateBound(strm, sourceLen)
{
deflate_state *s;
uLong complen, wraplen;
- Bytef *str;
/* conservative upper bound for compressed data */
complen = sourceLen +
((sourceLen + 7) >> 3) + ((sourceLen + 63) >> 6) + 5;
/* if can't get parameters, return conservative bound plus zlib wrapper */
- if (strm == Z_NULL || strm->state == Z_NULL)
+ if (deflateStateCheck(strm))
return complen + 6;
/* compute wrapper length */
@@ -508,9 +673,11 @@ uLong ZEXPORT deflateBound(strm, sourceLen)
case 1: /* zlib wrapper */
wraplen = 6 + (s->strstart ? 4 : 0);
break;
+#ifdef GZIP
case 2: /* gzip wrapper */
wraplen = 18;
if (s->gzhead != Z_NULL) { /* user-supplied gzip header */
+ Bytef *str;
if (s->gzhead->extra != Z_NULL)
wraplen += 2 + s->gzhead->extra_len;
str = s->gzhead->name;
@@ -527,6 +694,7 @@ uLong ZEXPORT deflateBound(strm, sourceLen)
wraplen += 2;
}
break;
+#endif
default: /* for compiler happiness */
wraplen = 6;
}
@@ -554,30 +722,43 @@ local void putShortMSB (s, b)
}
/* =========================================================================
- * Flush as much pending output as possible. All deflate() output goes
- * through this function so some applications may wish to modify it
- * to avoid allocating a large strm->next_out buffer and copying into it.
- * (See also read_buf()).
+ * Flush as much pending output as possible. All deflate() output, except for
+ * some deflate_stored() output, goes through this function so some
+ * applications may wish to modify it to avoid allocating a large
+ * strm->next_out buffer and copying into it. (See also read_buf()).
*/
local void flush_pending(strm)
z_streamp strm;
{
- unsigned len = strm->state->pending;
+ unsigned len;
+ deflate_state *s = strm->state;
+ _tr_flush_bits(s);
+ len = s->pending;
if (len > strm->avail_out) len = strm->avail_out;
if (len == 0) return;
- zmemcpy(strm->next_out, strm->state->pending_out, len);
+ zmemcpy(strm->next_out, s->pending_out, len);
strm->next_out += len;
- strm->state->pending_out += len;
+ s->pending_out += len;
strm->total_out += len;
- strm->avail_out -= len;
- strm->state->pending -= len;
- if (strm->state->pending == 0) {
- strm->state->pending_out = strm->state->pending_buf;
+ strm->avail_out -= len;
+ s->pending -= len;
+ if (s->pending == 0) {
+ s->pending_out = s->pending_buf;
}
}
+/* ===========================================================================
+ * Update the header CRC with the bytes s->pending_buf[beg..s->pending - 1].
+ */
+#define HCRC_UPDATE(beg) \
+ do { \
+ if (s->gzhead->hcrc && s->pending > (beg)) \
+ strm->adler = crc32(strm->adler, s->pending_buf + (beg), \
+ s->pending - (beg)); \
+ } while (0)
+
/* ========================================================================= */
int ZEXPORT deflate (strm, flush)
z_streamp strm;
@@ -586,230 +767,229 @@ int ZEXPORT deflate (strm, flush)
int old_flush; /* value of flush param for previous deflate call */
deflate_state *s;
- if (strm == Z_NULL || strm->state == Z_NULL ||
- flush > Z_BLOCK || flush < 0) {
+ if (deflateStateCheck(strm) || flush > Z_BLOCK || flush < 0) {
return Z_STREAM_ERROR;
}
s = strm->state;
if (strm->next_out == Z_NULL ||
- (strm->next_in == Z_NULL && strm->avail_in != 0) ||
+ (strm->avail_in != 0 && strm->next_in == Z_NULL) ||
(s->status == FINISH_STATE && flush != Z_FINISH)) {
ERR_RETURN(strm, Z_STREAM_ERROR);
}
if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR);
- s->strm = strm; /* just in case */
old_flush = s->last_flush;
s->last_flush = flush;
+ /* Flush as much pending output as possible */
+ if (s->pending != 0) {
+ flush_pending(strm);
+ if (strm->avail_out == 0) {
+ /* Since avail_out is 0, deflate will be called again with
+ * more output space, but possibly with both pending and
+ * avail_in equal to zero. There won't be anything to do,
+ * but this is not an error situation so make sure we
+ * return OK instead of BUF_ERROR at next call of deflate:
+ */
+ s->last_flush = -1;
+ return Z_OK;
+ }
+
+ /* Make sure there is something to do and avoid duplicate consecutive
+ * flushes. For repeated and useless calls with Z_FINISH, we keep
+ * returning Z_STREAM_END instead of Z_BUF_ERROR.
+ */
+ } else if (strm->avail_in == 0 && RANK(flush) <= RANK(old_flush) &&
+ flush != Z_FINISH) {
+ ERR_RETURN(strm, Z_BUF_ERROR);
+ }
+
+ /* User must not provide more input after the first FINISH: */
+ if (s->status == FINISH_STATE && strm->avail_in != 0) {
+ ERR_RETURN(strm, Z_BUF_ERROR);
+ }
+
/* Write the header */
if (s->status == INIT_STATE) {
-#ifdef GZIP
- if (s->wrap == 2) {
- strm->adler = crc32(0L, Z_NULL, 0);
- put_byte(s, 31);
- put_byte(s, 139);
- put_byte(s, 8);
- if (s->gzhead == Z_NULL) {
- put_byte(s, 0);
- put_byte(s, 0);
- put_byte(s, 0);
- put_byte(s, 0);
- put_byte(s, 0);
- put_byte(s, s->level == 9 ? 2 :
- (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ?
- 4 : 0));
- put_byte(s, OS_CODE);
- s->status = BUSY_STATE;
- }
- else {
- put_byte(s, (s->gzhead->text ? 1 : 0) +
- (s->gzhead->hcrc ? 2 : 0) +
- (s->gzhead->extra == Z_NULL ? 0 : 4) +
- (s->gzhead->name == Z_NULL ? 0 : 8) +
- (s->gzhead->comment == Z_NULL ? 0 : 16)
- );
- put_byte(s, (Byte)(s->gzhead->time & 0xff));
- put_byte(s, (Byte)((s->gzhead->time >> 8) & 0xff));
- put_byte(s, (Byte)((s->gzhead->time >> 16) & 0xff));
- put_byte(s, (Byte)((s->gzhead->time >> 24) & 0xff));
- put_byte(s, s->level == 9 ? 2 :
- (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ?
- 4 : 0));
- put_byte(s, s->gzhead->os & 0xff);
- if (s->gzhead->extra != Z_NULL) {
- put_byte(s, s->gzhead->extra_len & 0xff);
- put_byte(s, (s->gzhead->extra_len >> 8) & 0xff);
- }
- if (s->gzhead->hcrc)
- strm->adler = crc32(strm->adler, s->pending_buf,
- s->pending);
- s->gzindex = 0;
- s->status = EXTRA_STATE;
- }
- }
+ /* zlib header */
+ uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8;
+ uInt level_flags;
+
+ if (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2)
+ level_flags = 0;
+ else if (s->level < 6)
+ level_flags = 1;
+ else if (s->level == 6)
+ level_flags = 2;
else
-#endif
- {
- uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8;
- uInt level_flags;
-
- if (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2)
- level_flags = 0;
- else if (s->level < 6)
- level_flags = 1;
- else if (s->level == 6)
- level_flags = 2;
- else
- level_flags = 3;
- header |= (level_flags << 6);
- if (s->strstart != 0) header |= PRESET_DICT;
- header += 31 - (header % 31);
+ level_flags = 3;
+ header |= (level_flags << 6);
+ if (s->strstart != 0) header |= PRESET_DICT;
+ header += 31 - (header % 31);
+ putShortMSB(s, header);
+
+ /* Save the adler32 of the preset dictionary: */
+ if (s->strstart != 0) {
+ putShortMSB(s, (uInt)(strm->adler >> 16));
+ putShortMSB(s, (uInt)(strm->adler & 0xffff));
+ }
+ strm->adler = adler32(0L, Z_NULL, 0);
+ s->status = BUSY_STATE;
+
+ /* Compression must start with an empty pending buffer */
+ flush_pending(strm);
+ if (s->pending != 0) {
+ s->last_flush = -1;
+ return Z_OK;
+ }
+ }
+#ifdef GZIP
+ if (s->status == GZIP_STATE) {
+ /* gzip header */
+ strm->adler = crc32(0L, Z_NULL, 0);
+ put_byte(s, 31);
+ put_byte(s, 139);
+ put_byte(s, 8);
+ if (s->gzhead == Z_NULL) {
+ put_byte(s, 0);
+ put_byte(s, 0);
+ put_byte(s, 0);
+ put_byte(s, 0);
+ put_byte(s, 0);
+ put_byte(s, s->level == 9 ? 2 :
+ (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ?
+ 4 : 0));
+ put_byte(s, OS_CODE);
s->status = BUSY_STATE;
- putShortMSB(s, header);
- /* Save the adler32 of the preset dictionary: */
- if (s->strstart != 0) {
- putShortMSB(s, (uInt)(strm->adler >> 16));
- putShortMSB(s, (uInt)(strm->adler & 0xffff));
+ /* Compression must start with an empty pending buffer */
+ flush_pending(strm);
+ if (s->pending != 0) {
+ s->last_flush = -1;
+ return Z_OK;
+ }
+ }
+ else {
+ put_byte(s, (s->gzhead->text ? 1 : 0) +
+ (s->gzhead->hcrc ? 2 : 0) +
+ (s->gzhead->extra == Z_NULL ? 0 : 4) +
+ (s->gzhead->name == Z_NULL ? 0 : 8) +
+ (s->gzhead->comment == Z_NULL ? 0 : 16)
+ );
+ put_byte(s, (Byte)(s->gzhead->time & 0xff));
+ put_byte(s, (Byte)((s->gzhead->time >> 8) & 0xff));
+ put_byte(s, (Byte)((s->gzhead->time >> 16) & 0xff));
+ put_byte(s, (Byte)((s->gzhead->time >> 24) & 0xff));
+ put_byte(s, s->level == 9 ? 2 :
+ (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ?
+ 4 : 0));
+ put_byte(s, s->gzhead->os & 0xff);
+ if (s->gzhead->extra != Z_NULL) {
+ put_byte(s, s->gzhead->extra_len & 0xff);
+ put_byte(s, (s->gzhead->extra_len >> 8) & 0xff);
}
- strm->adler = adler32(0L, Z_NULL, 0);
+ if (s->gzhead->hcrc)
+ strm->adler = crc32(strm->adler, s->pending_buf,
+ s->pending);
+ s->gzindex = 0;
+ s->status = EXTRA_STATE;
}
}
-#ifdef GZIP
if (s->status == EXTRA_STATE) {
if (s->gzhead->extra != Z_NULL) {
- uInt beg = s->pending; /* start of bytes to update crc */
-
- while (s->gzindex < (s->gzhead->extra_len & 0xffff)) {
- if (s->pending == s->pending_buf_size) {
- if (s->gzhead->hcrc && s->pending > beg)
- strm->adler = crc32(strm->adler, s->pending_buf + beg,
- s->pending - beg);
- flush_pending(strm);
- beg = s->pending;
- if (s->pending == s->pending_buf_size)
- break;
+ ulg beg = s->pending; /* start of bytes to update crc */
+ uInt left = (s->gzhead->extra_len & 0xffff) - s->gzindex;
+ while (s->pending + left > s->pending_buf_size) {
+ uInt copy = s->pending_buf_size - s->pending;
+ zmemcpy(s->pending_buf + s->pending,
+ s->gzhead->extra + s->gzindex, copy);
+ s->pending = s->pending_buf_size;
+ HCRC_UPDATE(beg);
+ s->gzindex += copy;
+ flush_pending(strm);
+ if (s->pending != 0) {
+ s->last_flush = -1;
+ return Z_OK;
}
- put_byte(s, s->gzhead->extra[s->gzindex]);
- s->gzindex++;
- }
- if (s->gzhead->hcrc && s->pending > beg)
- strm->adler = crc32(strm->adler, s->pending_buf + beg,
- s->pending - beg);
- if (s->gzindex == s->gzhead->extra_len) {
- s->gzindex = 0;
- s->status = NAME_STATE;
+ beg = 0;
+ left -= copy;
}
+ zmemcpy(s->pending_buf + s->pending,
+ s->gzhead->extra + s->gzindex, left);
+ s->pending += left;
+ HCRC_UPDATE(beg);
+ s->gzindex = 0;
}
- else
- s->status = NAME_STATE;
+ s->status = NAME_STATE;
}
if (s->status == NAME_STATE) {
if (s->gzhead->name != Z_NULL) {
- uInt beg = s->pending; /* start of bytes to update crc */
+ ulg beg = s->pending; /* start of bytes to update crc */
int val;
-
do {
if (s->pending == s->pending_buf_size) {
- if (s->gzhead->hcrc && s->pending > beg)
- strm->adler = crc32(strm->adler, s->pending_buf + beg,
- s->pending - beg);
+ HCRC_UPDATE(beg);
flush_pending(strm);
- beg = s->pending;
- if (s->pending == s->pending_buf_size) {
- val = 1;
- break;
+ if (s->pending != 0) {
+ s->last_flush = -1;
+ return Z_OK;
}
+ beg = 0;
}
val = s->gzhead->name[s->gzindex++];
put_byte(s, val);
} while (val != 0);
- if (s->gzhead->hcrc && s->pending > beg)
- strm->adler = crc32(strm->adler, s->pending_buf + beg,
- s->pending - beg);
- if (val == 0) {
- s->gzindex = 0;
- s->status = COMMENT_STATE;
- }
+ HCRC_UPDATE(beg);
+ s->gzindex = 0;
}
- else
- s->status = COMMENT_STATE;
+ s->status = COMMENT_STATE;
}
if (s->status == COMMENT_STATE) {
if (s->gzhead->comment != Z_NULL) {
- uInt beg = s->pending; /* start of bytes to update crc */
+ ulg beg = s->pending; /* start of bytes to update crc */
int val;
-
do {
if (s->pending == s->pending_buf_size) {
- if (s->gzhead->hcrc && s->pending > beg)
- strm->adler = crc32(strm->adler, s->pending_buf + beg,
- s->pending - beg);
+ HCRC_UPDATE(beg);
flush_pending(strm);
- beg = s->pending;
- if (s->pending == s->pending_buf_size) {
- val = 1;
- break;
+ if (s->pending != 0) {
+ s->last_flush = -1;
+ return Z_OK;
}
+ beg = 0;
}
val = s->gzhead->comment[s->gzindex++];
put_byte(s, val);
} while (val != 0);
- if (s->gzhead->hcrc && s->pending > beg)
- strm->adler = crc32(strm->adler, s->pending_buf + beg,
- s->pending - beg);
- if (val == 0)
- s->status = HCRC_STATE;
+ HCRC_UPDATE(beg);
}
- else
- s->status = HCRC_STATE;
+ s->status = HCRC_STATE;
}
if (s->status == HCRC_STATE) {
if (s->gzhead->hcrc) {
- if (s->pending + 2 > s->pending_buf_size)
+ if (s->pending + 2 > s->pending_buf_size) {
flush_pending(strm);
- if (s->pending + 2 <= s->pending_buf_size) {
- put_byte(s, (Byte)(strm->adler & 0xff));
- put_byte(s, (Byte)((strm->adler >> 8) & 0xff));
- strm->adler = crc32(0L, Z_NULL, 0);
- s->status = BUSY_STATE;
+ if (s->pending != 0) {
+ s->last_flush = -1;
+ return Z_OK;
+ }
}
+ put_byte(s, (Byte)(strm->adler & 0xff));
+ put_byte(s, (Byte)((strm->adler >> 8) & 0xff));
+ strm->adler = crc32(0L, Z_NULL, 0);
}
- else
- s->status = BUSY_STATE;
- }
-#endif
+ s->status = BUSY_STATE;
- /* Flush as much pending output as possible */
- if (s->pending != 0) {
+ /* Compression must start with an empty pending buffer */
flush_pending(strm);
- if (strm->avail_out == 0) {
- /* Since avail_out is 0, deflate will be called again with
- * more output space, but possibly with both pending and
- * avail_in equal to zero. There won't be anything to do,
- * but this is not an error situation so make sure we
- * return OK instead of BUF_ERROR at next call of deflate:
- */
+ if (s->pending != 0) {
s->last_flush = -1;
return Z_OK;
}
-
- /* Make sure there is something to do and avoid duplicate consecutive
- * flushes. For repeated and useless calls with Z_FINISH, we keep
- * returning Z_STREAM_END instead of Z_BUF_ERROR.
- */
- } else if (strm->avail_in == 0 && flush <= old_flush &&
- flush != Z_FINISH) {
- ERR_RETURN(strm, Z_BUF_ERROR);
- }
-
- /* User must not provide more input after the first FINISH: */
- if (s->status == FINISH_STATE && strm->avail_in != 0) {
- ERR_RETURN(strm, Z_BUF_ERROR);
}
+#endif
/* Start a new block or continue the current one.
*/
@@ -817,9 +997,10 @@ int ZEXPORT deflate (strm, flush)
(flush != Z_NO_FLUSH && s->status != FINISH_STATE)) {
block_state bstate;
- bstate = s->strategy == Z_HUFFMAN_ONLY ? deflate_huff(s, flush) :
- (s->strategy == Z_RLE ? deflate_rle(s, flush) :
- (*(configuration_table[s->level].func))(s, flush));
+ bstate = s->level == 0 ? deflate_stored(s, flush) :
+ s->strategy == Z_HUFFMAN_ONLY ? deflate_huff(s, flush) :
+ s->strategy == Z_RLE ? deflate_rle(s, flush) :
+ (*(configuration_table[s->level].func))(s, flush);
if (bstate == finish_started || bstate == finish_done) {
s->status = FINISH_STATE;
@@ -850,6 +1031,7 @@ int ZEXPORT deflate (strm, flush)
if (s->lookahead == 0) {
s->strstart = 0;
s->block_start = 0L;
+ s->insert = 0;
}
}
}
@@ -860,7 +1042,6 @@ int ZEXPORT deflate (strm, flush)
}
}
}
- Assert(strm->avail_out > 0, "bug2");
if (flush != Z_FINISH) return Z_OK;
if (s->wrap <= 0) return Z_STREAM_END;
@@ -897,18 +1078,9 @@ int ZEXPORT deflateEnd (strm)
{
int status;
- if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+ if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
status = strm->state->status;
- if (status != INIT_STATE &&
- status != EXTRA_STATE &&
- status != NAME_STATE &&
- status != COMMENT_STATE &&
- status != HCRC_STATE &&
- status != BUSY_STATE &&
- status != FINISH_STATE) {
- return Z_STREAM_ERROR;
- }
/* Deallocate in reverse order of allocations: */
TRY_FREE(strm, strm->state->pending_buf);
@@ -939,18 +1111,18 @@ int ZEXPORT deflateCopy (dest, source)
ushf *overlay;
- if (source == Z_NULL || dest == Z_NULL || source->state == Z_NULL) {
+ if (deflateStateCheck(source) || dest == Z_NULL) {
return Z_STREAM_ERROR;
}
ss = source->state;
- zmemcpy(dest, source, sizeof(z_stream));
+ zmemcpy((voidpf)dest, (voidpf)source, sizeof(z_stream));
ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state));
if (ds == Z_NULL) return Z_MEM_ERROR;
dest->state = (struct internal_state FAR *) ds;
- zmemcpy(ds, ss, sizeof(deflate_state));
+ zmemcpy((voidpf)ds, (voidpf)ss, sizeof(deflate_state));
ds->strm = dest;
ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte));
@@ -966,8 +1138,8 @@ int ZEXPORT deflateCopy (dest, source)
}
/* following zmemcpy do not work for 16-bit MSDOS */
zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte));
- zmemcpy(ds->prev, ss->prev, ds->w_size * sizeof(Pos));
- zmemcpy(ds->head, ss->head, ds->hash_size * sizeof(Pos));
+ zmemcpy((voidpf)ds->prev, (voidpf)ss->prev, ds->w_size * sizeof(Pos));
+ zmemcpy((voidpf)ds->head, (voidpf)ss->head, ds->hash_size * sizeof(Pos));
zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size);
ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf);
@@ -989,7 +1161,7 @@ int ZEXPORT deflateCopy (dest, source)
* allocating a large strm->next_in buffer and copying from it.
* (See also flush_pending()).
*/
-local int read_buf(strm, buf, size)
+local unsigned read_buf(strm, buf, size)
z_streamp strm;
Bytef *buf;
unsigned size;
@@ -1001,19 +1173,19 @@ local int read_buf(strm, buf, size)
strm->avail_in -= len;
+ zmemcpy(buf, strm->next_in, len);
if (strm->state->wrap == 1) {
- strm->adler = adler32(strm->adler, strm->next_in, len);
+ strm->adler = adler32(strm->adler, buf, len);
}
#ifdef GZIP
else if (strm->state->wrap == 2) {
- strm->adler = crc32(strm->adler, strm->next_in, len);
+ strm->adler = crc32(strm->adler, buf, len);
}
#endif
- zmemcpy(buf, strm->next_in, len);
strm->next_in += len;
strm->total_in += len;
- return (int)len;
+ return len;
}
/* ===========================================================================
@@ -1036,6 +1208,7 @@ local void lm_init (s)
s->strstart = 0;
s->block_start = 0L;
s->lookahead = 0;
+ s->insert = 0;
s->match_length = s->prev_length = MIN_MATCH-1;
s->match_available = 0;
s->ins_h = 0;
@@ -1066,9 +1239,9 @@ local uInt longest_match(s, cur_match)
{
unsigned chain_length = s->max_chain_length;/* max hash chain length */
register Bytef *scan = s->window + s->strstart; /* current string */
- register Bytef *match; /* matched string */
+ register Bytef *match; /* matched string */
register int len; /* length of current match */
- int best_len = s->prev_length; /* best match length so far */
+ int best_len = (int)s->prev_length; /* best match length so far */
int nice_match = s->nice_match; /* stop if match long enough */
IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
s->strstart - (IPos)MAX_DIST(s) : NIL;
@@ -1103,7 +1276,7 @@ local uInt longest_match(s, cur_match)
/* Do not look for matches beyond the end of the input. This is necessary
* to make deflate deterministic.
*/
- if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
+ if ((uInt)nice_match > s->lookahead) nice_match = (int)s->lookahead;
Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");
@@ -1264,7 +1437,11 @@ local uInt longest_match(s, cur_match)
#endif /* FASTEST */
-#ifdef DEBUG
+#ifdef ZLIB_DEBUG
+
+#define EQUAL 0
+/* result of memcmp for equal strings */
+
/* ===========================================================================
* Check that the match at match_start is indeed a match.
*/
@@ -1290,7 +1467,7 @@ local void check_match(s, start, match, length)
}
#else
# define check_match(s, start, match, length)
-#endif /* DEBUG */
+#endif /* ZLIB_DEBUG */
/* ===========================================================================
* Fill the window when the lookahead becomes insufficient.
@@ -1305,11 +1482,12 @@ local void check_match(s, start, match, length)
local void fill_window(s)
deflate_state *s;
{
- register unsigned n, m;
- register Posf *p;
+ unsigned n;
unsigned more; /* Amount of free space at the end of the window. */
uInt wsize = s->w_size;
+ Assert(s->lookahead < MIN_LOOKAHEAD, "already enough lookahead");
+
do {
more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart);
@@ -1331,38 +1509,14 @@ local void fill_window(s)
*/
if (s->strstart >= wsize+MAX_DIST(s)) {
- zmemcpy(s->window, s->window+wsize, (unsigned)wsize);
+ zmemcpy(s->window, s->window+wsize, (unsigned)wsize - more);
s->match_start -= wsize;
s->strstart -= wsize; /* we now have strstart >= MAX_DIST */
s->block_start -= (long) wsize;
-
- /* Slide the hash table (could be avoided with 32 bit values
- at the expense of memory usage). We slide even when level == 0
- to keep the hash table consistent if we switch back to level > 0
- later. (Using level 0 permanently is not an optimal usage of
- zlib, so we don't care about this pathological case.)
- */
- n = s->hash_size;
- p = &s->head[n];
- do {
- m = *--p;
- *p = (Pos)(m >= wsize ? m-wsize : NIL);
- } while (--n);
-
- n = wsize;
-#ifndef FASTEST
- p = &s->prev[n];
- do {
- m = *--p;
- *p = (Pos)(m >= wsize ? m-wsize : NIL);
- /* If n is not on any hash chain, prev[n] is garbage but
- * its value will never be used.
- */
- } while (--n);
-#endif
+ slide_hash(s);
more += wsize;
}
- if (s->strm->avail_in == 0) return;
+ if (s->strm->avail_in == 0) break;
/* If there was no sliding:
* strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 &&
@@ -1381,12 +1535,24 @@ local void fill_window(s)
s->lookahead += n;
/* Initialize the hash value now that we have some input: */
- if (s->lookahead >= MIN_MATCH) {
- s->ins_h = s->window[s->strstart];
- UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]);
+ if (s->lookahead + s->insert >= MIN_MATCH) {
+ uInt str = s->strstart - s->insert;
+ s->ins_h = s->window[str];
+ UPDATE_HASH(s, s->ins_h, s->window[str + 1]);
#if MIN_MATCH != 3
Call UPDATE_HASH() MIN_MATCH-3 more times
#endif
+ while (s->insert) {
+ UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]);
+#ifndef FASTEST
+ s->prev[str & s->w_mask] = s->head[s->ins_h];
+#endif
+ s->head[s->ins_h] = (Pos)str;
+ str++;
+ s->insert--;
+ if (s->lookahead + s->insert < MIN_MATCH)
+ break;
+ }
}
/* If the whole input has less than MIN_MATCH bytes, ins_h is garbage,
* but this is not important since only literal bytes will be emitted.
@@ -1427,6 +1593,9 @@ local void fill_window(s)
s->high_water += init;
}
}
+
+ Assert((ulg)s->strstart <= s->window_size - MIN_LOOKAHEAD,
+ "not enough room for search");
}
/* ===========================================================================
@@ -1450,64 +1619,199 @@ local void fill_window(s)
if (s->strm->avail_out == 0) return (last) ? finish_started : need_more; \
}
+/* Maximum stored block length in deflate format (not including header). */
+#define MAX_STORED 65535
+
+/* Minimum of a and b. */
+#define MIN(a, b) ((a) > (b) ? (b) : (a))
+
/* ===========================================================================
* Copy without compression as much as possible from the input stream, return
* the current block state.
- * This function does not insert new strings in the dictionary since
- * uncompressible data is probably not useful. This function is used
- * only for the level=0 compression option.
- * NOTE: this function should be optimized to avoid extra copying from
- * window to pending_buf.
+ *
+ * In case deflateParams() is used to later switch to a non-zero compression
+ * level, s->matches (otherwise unused when storing) keeps track of the number
+ * of hash table slides to perform. If s->matches is 1, then one hash table
+ * slide will be done when switching. If s->matches is 2, the maximum value
+ * allowed here, then the hash table will be cleared, since two or more slides
+ * is the same as a clear.
+ *
+ * deflate_stored() is written to minimize the number of times an input byte is
+ * copied. It is most efficient with large input and output buffers, which
+ * maximizes the opportunites to have a single copy from next_in to next_out.
*/
local block_state deflate_stored(s, flush)
deflate_state *s;
int flush;
{
- /* Stored blocks are limited to 0xffff bytes, pending_buf is limited
- * to pending_buf_size, and each stored block has a 5 byte header:
+ /* Smallest worthy block size when not flushing or finishing. By default
+ * this is 32K. This can be as small as 507 bytes for memLevel == 1. For
+ * large input and output buffers, the stored block size will be larger.
*/
- ulg max_block_size = 0xffff;
- ulg max_start;
+ unsigned min_block = MIN(s->pending_buf_size - 5, s->w_size);
- if (max_block_size > s->pending_buf_size - 5) {
- max_block_size = s->pending_buf_size - 5;
- }
-
- /* Copy as much as possible from input to output: */
- for (;;) {
- /* Fill the window as much as possible: */
- if (s->lookahead <= 1) {
-
- Assert(s->strstart < s->w_size+MAX_DIST(s) ||
- s->block_start >= (long)s->w_size, "slide too late");
+ /* Copy as many min_block or larger stored blocks directly to next_out as
+ * possible. If flushing, copy the remaining available input to next_out as
+ * stored blocks, if there is enough space.
+ */
+ unsigned len, left, have, last = 0;
+ unsigned used = s->strm->avail_in;
+ do {
+ /* Set len to the maximum size block that we can copy directly with the
+ * available input data and output space. Set left to how much of that
+ * would be copied from what's left in the window.
+ */
+ len = MAX_STORED; /* maximum deflate stored block length */
+ have = (s->bi_valid + 42) >> 3; /* number of header bytes */
+ if (s->strm->avail_out < have) /* need room for header */
+ break;
+ /* maximum stored block length that will fit in avail_out: */
+ have = s->strm->avail_out - have;
+ left = s->strstart - s->block_start; /* bytes left in window */
+ if (len > (ulg)left + s->strm->avail_in)
+ len = left + s->strm->avail_in; /* limit len to the input */
+ if (len > have)
+ len = have; /* limit len to the output */
+
+ /* If the stored block would be less than min_block in length, or if
+ * unable to copy all of the available input when flushing, then try
+ * copying to the window and the pending buffer instead. Also don't
+ * write an empty block when flushing -- deflate() does that.
+ */
+ if (len < min_block && ((len == 0 && flush != Z_FINISH) ||
+ flush == Z_NO_FLUSH ||
+ len != left + s->strm->avail_in))
+ break;
- fill_window(s);
- if (s->lookahead == 0 && flush == Z_NO_FLUSH) return need_more;
+ /* Make a dummy stored block in pending to get the header bytes,
+ * including any pending bits. This also updates the debugging counts.
+ */
+ last = flush == Z_FINISH && len == left + s->strm->avail_in ? 1 : 0;
+ _tr_stored_block(s, (char *)0, 0L, last);
+
+ /* Replace the lengths in the dummy stored block with len. */
+ s->pending_buf[s->pending - 4] = len;
+ s->pending_buf[s->pending - 3] = len >> 8;
+ s->pending_buf[s->pending - 2] = ~len;
+ s->pending_buf[s->pending - 1] = ~len >> 8;
+
+ /* Write the stored block header bytes. */
+ flush_pending(s->strm);
+
+#ifdef ZLIB_DEBUG
+ /* Update debugging counts for the data about to be copied. */
+ s->compressed_len += len << 3;
+ s->bits_sent += len << 3;
+#endif
- if (s->lookahead == 0) break; /* flush the current block */
+ /* Copy uncompressed bytes from the window to next_out. */
+ if (left) {
+ if (left > len)
+ left = len;
+ zmemcpy(s->strm->next_out, s->window + s->block_start, left);
+ s->strm->next_out += left;
+ s->strm->avail_out -= left;
+ s->strm->total_out += left;
+ s->block_start += left;
+ len -= left;
}
- Assert(s->block_start >= 0L, "block gone");
-
- s->strstart += s->lookahead;
- s->lookahead = 0;
-
- /* Emit a stored block if pending_buf will be full: */
- max_start = s->block_start + max_block_size;
- if (s->strstart == 0 || (ulg)s->strstart >= max_start) {
- /* strstart == 0 is possible when wraparound on 16-bit machine */
- s->lookahead = (uInt)(s->strstart - max_start);
- s->strstart = (uInt)max_start;
- FLUSH_BLOCK(s, 0);
+
+ /* Copy uncompressed bytes directly from next_in to next_out, updating
+ * the check value.
+ */
+ if (len) {
+ read_buf(s->strm, s->strm->next_out, len);
+ s->strm->next_out += len;
+ s->strm->avail_out -= len;
+ s->strm->total_out += len;
}
- /* Flush if we may have to slide, otherwise block_start may become
- * negative and the data will be gone:
+ } while (last == 0);
+
+ /* Update the sliding window with the last s->w_size bytes of the copied
+ * data, or append all of the copied data to the existing window if less
+ * than s->w_size bytes were copied. Also update the number of bytes to
+ * insert in the hash tables, in the event that deflateParams() switches to
+ * a non-zero compression level.
+ */
+ used -= s->strm->avail_in; /* number of input bytes directly copied */
+ if (used) {
+ /* If any input was used, then no unused input remains in the window,
+ * therefore s->block_start == s->strstart.
*/
- if (s->strstart - (uInt)s->block_start >= MAX_DIST(s)) {
- FLUSH_BLOCK(s, 0);
+ if (used >= s->w_size) { /* supplant the previous history */
+ s->matches = 2; /* clear hash */
+ zmemcpy(s->window, s->strm->next_in - s->w_size, s->w_size);
+ s->strstart = s->w_size;
+ }
+ else {
+ if (s->window_size - s->strstart <= used) {
+ /* Slide the window down. */
+ s->strstart -= s->w_size;
+ zmemcpy(s->window, s->window + s->w_size, s->strstart);
+ if (s->matches < 2)
+ s->matches++; /* add a pending slide_hash() */
+ }
+ zmemcpy(s->window + s->strstart, s->strm->next_in - used, used);
+ s->strstart += used;
}
+ s->block_start = s->strstart;
+ s->insert += MIN(used, s->w_size - s->insert);
+ }
+ if (s->high_water < s->strstart)
+ s->high_water = s->strstart;
+
+ /* If the last block was written to next_out, then done. */
+ if (last)
+ return finish_done;
+
+ /* If flushing and all input has been consumed, then done. */
+ if (flush != Z_NO_FLUSH && flush != Z_FINISH &&
+ s->strm->avail_in == 0 && (long)s->strstart == s->block_start)
+ return block_done;
+
+ /* Fill the window with any remaining input. */
+ have = s->window_size - s->strstart - 1;
+ if (s->strm->avail_in > have && s->block_start >= (long)s->w_size) {
+ /* Slide the window down. */
+ s->block_start -= s->w_size;
+ s->strstart -= s->w_size;
+ zmemcpy(s->window, s->window + s->w_size, s->strstart);
+ if (s->matches < 2)
+ s->matches++; /* add a pending slide_hash() */
+ have += s->w_size; /* more space now */
+ }
+ if (have > s->strm->avail_in)
+ have = s->strm->avail_in;
+ if (have) {
+ read_buf(s->strm, s->window + s->strstart, have);
+ s->strstart += have;
+ }
+ if (s->high_water < s->strstart)
+ s->high_water = s->strstart;
+
+ /* There was not enough avail_out to write a complete worthy or flushed
+ * stored block to next_out. Write a stored block to pending instead, if we
+ * have enough input for a worthy block, or if flushing and there is enough
+ * room for the remaining input as a stored block in the pending buffer.
+ */
+ have = (s->bi_valid + 42) >> 3; /* number of header bytes */
+ /* maximum stored block length that will fit in pending: */
+ have = MIN(s->pending_buf_size - have, MAX_STORED);
+ min_block = MIN(have, s->w_size);
+ left = s->strstart - s->block_start;
+ if (left >= min_block ||
+ ((left || flush == Z_FINISH) && flush != Z_NO_FLUSH &&
+ s->strm->avail_in == 0 && left <= have)) {
+ len = MIN(left, have);
+ last = flush == Z_FINISH && s->strm->avail_in == 0 &&
+ len == left ? 1 : 0;
+ _tr_stored_block(s, (charf *)s->window + s->block_start, len, last);
+ s->block_start += len;
+ flush_pending(s->strm);
}
- FLUSH_BLOCK(s, flush == Z_FINISH);
- return flush == Z_FINISH ? finish_done : block_done;
+
+ /* We've done all we can with the available input and output. */
+ return last ? finish_started : need_more;
}
/* ===========================================================================
@@ -1603,8 +1907,14 @@ local block_state deflate_fast(s, flush)
}
if (bflush) FLUSH_BLOCK(s, 0);
}
- FLUSH_BLOCK(s, flush == Z_FINISH);
- return flush == Z_FINISH ? finish_done : block_done;
+ s->insert = s->strstart < MIN_MATCH-1 ? s->strstart : MIN_MATCH-1;
+ if (flush == Z_FINISH) {
+ FLUSH_BLOCK(s, 1);
+ return finish_done;
+ }
+ if (s->last_lit)
+ FLUSH_BLOCK(s, 0);
+ return block_done;
}
#ifndef FASTEST
@@ -1728,8 +2038,14 @@ local block_state deflate_slow(s, flush)
_tr_tally_lit(s, s->window[s->strstart-1], bflush);
s->match_available = 0;
}
- FLUSH_BLOCK(s, flush == Z_FINISH);
- return flush == Z_FINISH ? finish_done : block_done;
+ s->insert = s->strstart < MIN_MATCH-1 ? s->strstart : MIN_MATCH-1;
+ if (flush == Z_FINISH) {
+ FLUSH_BLOCK(s, 1);
+ return finish_done;
+ }
+ if (s->last_lit)
+ FLUSH_BLOCK(s, 0);
+ return block_done;
}
#endif /* FASTEST */
@@ -1749,11 +2065,11 @@ local block_state deflate_rle(s, flush)
for (;;) {
/* Make sure that we always have enough lookahead, except
* at the end of the input file. We need MAX_MATCH bytes
- * for the longest encodable run.
+ * for the longest run, plus one for the unrolled loop.
*/
- if (s->lookahead < MAX_MATCH) {
+ if (s->lookahead <= MAX_MATCH) {
fill_window(s);
- if (s->lookahead < MAX_MATCH && flush == Z_NO_FLUSH) {
+ if (s->lookahead <= MAX_MATCH && flush == Z_NO_FLUSH) {
return need_more;
}
if (s->lookahead == 0) break; /* flush the current block */
@@ -1772,10 +2088,11 @@ local block_state deflate_rle(s, flush)
prev == *++scan && prev == *++scan &&
prev == *++scan && prev == *++scan &&
scan < strend);
- s->match_length = MAX_MATCH - (int)(strend - scan);
+ s->match_length = MAX_MATCH - (uInt)(strend - scan);
if (s->match_length > s->lookahead)
s->match_length = s->lookahead;
}
+ Assert(scan <= s->window+(uInt)(s->window_size-1), "wild scan");
}
/* Emit match if have run of MIN_MATCH or longer, else emit literal */
@@ -1796,8 +2113,14 @@ local block_state deflate_rle(s, flush)
}
if (bflush) FLUSH_BLOCK(s, 0);
}
- FLUSH_BLOCK(s, flush == Z_FINISH);
- return flush == Z_FINISH ? finish_done : block_done;
+ s->insert = 0;
+ if (flush == Z_FINISH) {
+ FLUSH_BLOCK(s, 1);
+ return finish_done;
+ }
+ if (s->last_lit)
+ FLUSH_BLOCK(s, 0);
+ return block_done;
}
/* ===========================================================================
@@ -1829,6 +2152,12 @@ local block_state deflate_huff(s, flush)
s->strstart++;
if (bflush) FLUSH_BLOCK(s, 0);
}
- FLUSH_BLOCK(s, flush == Z_FINISH);
- return flush == Z_FINISH ? finish_done : block_done;
+ s->insert = 0;
+ if (flush == Z_FINISH) {
+ FLUSH_BLOCK(s, 1);
+ return finish_done;
+ }
+ if (s->last_lit)
+ FLUSH_BLOCK(s, 0);
+ return block_done;
}
diff --git a/src/3rdparty/zlib/deflate.h b/src/3rdparty/zlib/src/deflate.h
index cbf0d1ea5d..23ecdd312b 100644
--- a/src/3rdparty/zlib/deflate.h
+++ b/src/3rdparty/zlib/src/deflate.h
@@ -1,5 +1,5 @@
/* deflate.h -- internal compression state
- * Copyright (C) 1995-2010 Jean-loup Gailly
+ * Copyright (C) 1995-2016 Jean-loup Gailly
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -48,13 +48,19 @@
#define MAX_BITS 15
/* All codes must not exceed MAX_BITS bits */
-#define INIT_STATE 42
-#define EXTRA_STATE 69
-#define NAME_STATE 73
-#define COMMENT_STATE 91
-#define HCRC_STATE 103
-#define BUSY_STATE 113
-#define FINISH_STATE 666
+#define Buf_size 16
+/* size of bit buffer in bi_buf */
+
+#define INIT_STATE 42 /* zlib header -> BUSY_STATE */
+#ifdef GZIP
+# define GZIP_STATE 57 /* gzip header -> BUSY_STATE | EXTRA_STATE */
+#endif
+#define EXTRA_STATE 69 /* gzip extra block -> NAME_STATE */
+#define NAME_STATE 73 /* gzip file name -> COMMENT_STATE */
+#define COMMENT_STATE 91 /* gzip comment -> HCRC_STATE */
+#define HCRC_STATE 103 /* gzip header CRC -> BUSY_STATE */
+#define BUSY_STATE 113 /* deflate -> FINISH_STATE */
+#define FINISH_STATE 666 /* stream complete */
/* Stream status */
@@ -80,7 +86,7 @@ typedef struct static_tree_desc_s static_tree_desc;
typedef struct tree_desc_s {
ct_data *dyn_tree; /* the dynamic tree */
int max_code; /* largest code with non zero frequency */
- static_tree_desc *stat_desc; /* the corresponding static tree */
+ const static_tree_desc *stat_desc; /* the corresponding static tree */
} FAR tree_desc;
typedef ush Pos;
@@ -97,11 +103,11 @@ typedef struct internal_state {
Bytef *pending_buf; /* output still pending */
ulg pending_buf_size; /* size of pending_buf */
Bytef *pending_out; /* next pending byte to output to the stream */
- uInt pending; /* nb of bytes in the pending buffer */
+ ulg pending; /* nb of bytes in the pending buffer */
int wrap; /* bit 0 true for zlib, bit 1 true for gzip */
gz_headerp gzhead; /* gzip header information to write */
- uInt gzindex; /* where in extra, name, or comment */
- Byte method; /* STORED (for zip only) or DEFLATED */
+ ulg gzindex; /* where in extra, name, or comment */
+ Byte method; /* can only be DEFLATED */
int last_flush; /* value of flush param for previous deflate call */
/* used by deflate.c: */
@@ -188,7 +194,7 @@ typedef struct internal_state {
int nice_match; /* Stop searching when current match exceeds this */
/* used by trees.c: */
- /* Didn't use ct_data typedef below to supress compiler warning */
+ /* Didn't use ct_data typedef below to suppress compiler warning */
struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */
struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */
struct ct_data_s bl_tree[2*BL_CODES+1]; /* Huffman tree for bit lengths */
@@ -244,9 +250,9 @@ typedef struct internal_state {
ulg opt_len; /* bit length of current block with optimal trees */
ulg static_len; /* bit length of current block with static trees */
uInt matches; /* number of string matches in current block */
- int last_eob_len; /* bit length of EOB code for last block */
+ uInt insert; /* bytes at end of window left to insert */
-#ifdef DEBUG
+#ifdef ZLIB_DEBUG
ulg compressed_len; /* total bit length of compressed file mod 2^32 */
ulg bits_sent; /* bit length of compressed data sent mod 2^32 */
#endif
@@ -272,7 +278,7 @@ typedef struct internal_state {
/* Output a byte on the stream.
* IN assertion: there is enough room in pending_buf.
*/
-#define put_byte(s, c) {s->pending_buf[s->pending++] = (c);}
+#define put_byte(s, c) {s->pending_buf[s->pending++] = (Bytef)(c);}
#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
@@ -294,6 +300,7 @@ void ZLIB_INTERNAL _tr_init OF((deflate_state *s));
int ZLIB_INTERNAL _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc));
void ZLIB_INTERNAL _tr_flush_block OF((deflate_state *s, charf *buf,
ulg stored_len, int last));
+void ZLIB_INTERNAL _tr_flush_bits OF((deflate_state *s));
void ZLIB_INTERNAL _tr_align OF((deflate_state *s));
void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf,
ulg stored_len, int last));
@@ -305,7 +312,7 @@ void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf,
* used.
*/
-#ifndef DEBUG
+#ifndef ZLIB_DEBUG
/* Inline versions of _tr_tally for speed: */
#if defined(GEN_TREES_H) || !defined(STDC)
@@ -324,8 +331,8 @@ void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf,
flush = (s->last_lit == s->lit_bufsize-1); \
}
# define _tr_tally_dist(s, distance, length, flush) \
- { uch len = (length); \
- ush dist = (distance); \
+ { uch len = (uch)(length); \
+ ush dist = (ush)(distance); \
s->d_buf[s->last_lit] = dist; \
s->l_buf[s->last_lit++] = len; \
dist--; \
diff --git a/src/3rdparty/zlib/gzclose.c b/src/3rdparty/zlib/src/gzclose.c
index caeb99a317..caeb99a317 100644
--- a/src/3rdparty/zlib/gzclose.c
+++ b/src/3rdparty/zlib/src/gzclose.c
diff --git a/src/3rdparty/zlib/gzguts.h b/src/3rdparty/zlib/src/gzguts.h
index 3daf1070c4..20de7cb4ce 100644
--- a/src/3rdparty/zlib/gzguts.h
+++ b/src/3rdparty/zlib/src/gzguts.h
@@ -1,5 +1,5 @@
/* gzguts.h -- zlib internal header definitions for gz* operations
- * Copyright (C) 2004, 2005, 2010 Mark Adler
+ * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013, 2016 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -24,7 +24,13 @@
#ifndef QT_BOOTSTRAPPED
# include <qconfig.h>
#endif
-#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ) && defined(QT_VISIBILITY_AVAILABLE)
+
+#ifdef QT_VISIBILITY_AVAILABLE
+#define HAVE_HIDDEN
+#endif
+
+
+#ifdef HAVE_HIDDEN
# define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
#else
# define ZLIB_INTERNAL
@@ -37,28 +43,97 @@
# include <stdlib.h>
# include <limits.h>
#endif
-#if !defined(_WIN32_WCE)
-# include <fcntl.h>
-#else
-# include <qglobal.h>
-# include <qfunctions_wince.h>
+
+#ifndef _POSIX_SOURCE
+# define _POSIX_SOURCE
+#endif
+#include <fcntl.h>
+
+#ifdef _WIN32
+# include <stddef.h>
+#endif
+
+#if defined(__TURBOC__) || defined(_MSC_VER) || defined(_WIN32)
+# include <io.h>
+#endif
+
+#if defined(_WIN32) || defined(__CYGWIN__)
+# define WIDECHAR
+#endif
+
+#ifdef WINAPI_FAMILY
+# define open _open
+# define read _read
+# define write _write
+# define close _close
#endif
#ifdef NO_DEFLATE /* for compatibility with old definition */
# define NO_GZCOMPRESS
#endif
-#ifdef _MSC_VER
-# if !defined(_WIN32_WCE)
-# include <io.h>
+#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
+# ifndef HAVE_VSNPRINTF
+# define HAVE_VSNPRINTF
# endif
-# define vsnprintf _vsnprintf
+#endif
+
+#if defined(__CYGWIN__)
+# ifndef HAVE_VSNPRINTF
+# define HAVE_VSNPRINTF
+# endif
+#endif
+
+#if defined(MSDOS) && defined(__BORLANDC__) && (BORLANDC > 0x410)
+# ifndef HAVE_VSNPRINTF
+# define HAVE_VSNPRINTF
+# endif
+#endif
+
+#ifndef HAVE_VSNPRINTF
+# ifdef MSDOS
+/* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
+ but for now we just assume it doesn't. */
+# define NO_vsnprintf
+# endif
+# ifdef __TURBOC__
+# define NO_vsnprintf
+# endif
+# ifdef WIN32
+/* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
+# if !defined(vsnprintf) && !defined(NO_vsnprintf)
+# if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )
+# define vsnprintf _vsnprintf
+# endif
+# endif
+# endif
+# ifdef __SASC
+# define NO_vsnprintf
+# endif
+# ifdef VMS
+# define NO_vsnprintf
+# endif
+# ifdef __OS400__
+# define NO_vsnprintf
+# endif
+# ifdef __MVS__
+# define NO_vsnprintf
+# endif
+#endif
+
+/* unlike snprintf (which is required in C99), _snprintf does not guarantee
+ null termination of the result -- however this is only used in gzlib.c where
+ the result is assured to fit in the space provided */
+#if defined(_MSC_VER) && _MSC_VER < 1900
+# define snprintf _snprintf
#endif
#ifndef local
# define local static
#endif
-/* compile with -Dlocal if your debugger can't find static symbols */
+/* since "static" is used to mean two completely different things in C, we
+ define "local" for the non-static meaning of "static", for readability
+ (compile with -Dlocal if your debugger can't find static symbols) */
/* gz* functions always use library allocation functions */
#ifndef STDC
@@ -71,7 +146,7 @@
# include <windows.h>
# define zstrerror() gz_strwinerror((DWORD)GetLastError())
#else
-# ifdef STDC
+# ifndef NO_STRERROR
# include <errno.h>
# define zstrerror() strerror(errno)
# else
@@ -87,7 +162,15 @@
ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile));
#endif
-/* default i/o buffer size -- double this for output when reading */
+/* default memLevel */
+#if MAX_MEM_LEVEL >= 8
+# define DEF_MEM_LEVEL 8
+#else
+# define DEF_MEM_LEVEL MAX_MEM_LEVEL
+#endif
+
+/* default i/o buffer size -- double this for output when reading (this and
+ twice this must be able to fit in an unsigned type) */
#define GZBUFSIZE 8192
/* gzip modes, also provide a little integrity check on the passed structure */
@@ -103,23 +186,25 @@
/* internal gzip file state data structure */
typedef struct {
+ /* exposed contents for gzgetc() macro */
+ struct gzFile_s x; /* "x" for exposed */
+ /* x.have: number of bytes available at x.next */
+ /* x.next: next output data to deliver or write */
+ /* x.pos: current position in uncompressed data */
/* used for both reading and writing */
int mode; /* see gzip modes above */
int fd; /* file descriptor */
char *path; /* path or fd for error messages */
- z_off64_t pos; /* current position in uncompressed data */
unsigned size; /* buffer size, zero if not allocated yet */
unsigned want; /* requested buffer size, default is GZBUFSIZE */
- unsigned char *in; /* input buffer */
+ unsigned char *in; /* input buffer (double-sized when writing) */
unsigned char *out; /* output buffer (double-sized when reading) */
- unsigned char *next; /* next output data to deliver or write */
+ int direct; /* 0 if processing gzip, 1 if transparent */
/* just for reading */
- unsigned have; /* amount of output data unused at next */
- int eof; /* true if end of input file reached */
- z_off64_t start; /* where the gzip data started, for rewinding */
- z_off64_t raw; /* where the raw data started, for seeking */
int how; /* 0: get header, 1: copy, 2: decompress */
- int direct; /* true if last read direct, false if gzip */
+ z_off64_t start; /* where the gzip data started, for rewinding */
+ int eof; /* true if end of input file reached */
+ int past; /* true if read requested past end */
/* just for writing */
int level; /* compression level */
int strategy; /* compression strategy */
diff --git a/src/3rdparty/zlib/gzlib.c b/src/3rdparty/zlib/src/gzlib.c
index 603e60ed54..4105e6aff9 100644
--- a/src/3rdparty/zlib/gzlib.c
+++ b/src/3rdparty/zlib/src/gzlib.c
@@ -1,19 +1,23 @@
/* gzlib.c -- zlib functions common to reading and writing gzip files
- * Copyright (C) 2004, 2010 Mark Adler
+ * Copyright (C) 2004-2017 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
#include "gzguts.h"
+#if defined(_WIN32) && !defined(__BORLANDC__) && !defined(__MINGW32__)
+# define LSEEK _lseeki64
+#else
#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
# define LSEEK lseek64
#else
# define LSEEK lseek
#endif
+#endif
/* Local functions */
local void gz_reset OF((gz_statep));
-local gzFile gz_open OF((const char *, int, const char *));
+local gzFile gz_open OF((const void *, int, const char *));
#if defined UNDER_CE
@@ -71,28 +75,40 @@ char ZLIB_INTERNAL *gz_strwinerror (error)
local void gz_reset(state)
gz_statep state;
{
+ state->x.have = 0; /* no output data available */
if (state->mode == GZ_READ) { /* for reading ... */
- state->have = 0; /* no output data available */
state->eof = 0; /* not at end of file */
+ state->past = 0; /* have not read past end yet */
state->how = LOOK; /* look for gzip header */
- state->direct = 1; /* default for empty file */
}
state->seek = 0; /* no seek request pending */
gz_error(state, Z_OK, NULL); /* clear error */
- state->pos = 0; /* no uncompressed data yet */
+ state->x.pos = 0; /* no uncompressed data yet */
state->strm.avail_in = 0; /* no input data yet */
}
/* Open a gzip file either by name or file descriptor. */
local gzFile gz_open(path, fd, mode)
- const char *path;
+ const void *path;
int fd;
const char *mode;
{
gz_statep state;
+ z_size_t len;
+ int oflag;
+#ifdef O_CLOEXEC
+ int cloexec = 0;
+#endif
+#ifdef O_EXCL
+ int exclusive = 0;
+#endif
+
+ /* check input */
+ if (path == NULL)
+ return NULL;
/* allocate gzFile structure to return */
- state = malloc(sizeof(gz_state));
+ state = (gz_statep)malloc(sizeof(gz_state));
if (state == NULL)
return NULL;
state->size = 0; /* no buffers allocated yet */
@@ -103,6 +119,7 @@ local gzFile gz_open(path, fd, mode)
state->mode = GZ_NONE;
state->level = Z_DEFAULT_COMPRESSION;
state->strategy = Z_DEFAULT_STRATEGY;
+ state->direct = 0;
while (*mode) {
if (*mode >= '0' && *mode <= '9')
state->level = *mode - '0';
@@ -124,6 +141,16 @@ local gzFile gz_open(path, fd, mode)
return NULL;
case 'b': /* ignore -- will request binary anyway */
break;
+#ifdef O_CLOEXEC
+ case 'e':
+ cloexec = 1;
+ break;
+#endif
+#ifdef O_EXCL
+ case 'x':
+ exclusive = 1;
+ break;
+#endif
case 'f':
state->strategy = Z_FILTERED;
break;
@@ -135,6 +162,10 @@ local gzFile gz_open(path, fd, mode)
break;
case 'F':
state->strategy = Z_FIXED;
+ break;
+ case 'T':
+ state->direct = 1;
+ break;
default: /* could consider as an error, but just ignore */
;
}
@@ -147,37 +178,80 @@ local gzFile gz_open(path, fd, mode)
return NULL;
}
+ /* can't force transparent read */
+ if (state->mode == GZ_READ) {
+ if (state->direct) {
+ free(state);
+ return NULL;
+ }
+ state->direct = 1; /* for empty file */
+ }
+
/* save the path name for error messages */
- state->path = malloc(strlen(path) + 1);
+#ifdef WIDECHAR
+ if (fd == -2) {
+ len = wcstombs(NULL, path, 0);
+ if (len == (z_size_t)-1)
+ len = 0;
+ }
+ else
+#endif
+ len = strlen((const char *)path);
+ state->path = (char *)malloc(len + 1);
if (state->path == NULL) {
free(state);
return NULL;
}
- strcpy(state->path, path);
+#ifdef WIDECHAR
+ if (fd == -2)
+ if (len)
+ wcstombs(state->path, path, len + 1);
+ else
+ *(state->path) = 0;
+ else
+#endif
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+ (void)snprintf(state->path, len + 1, "%s", (const char *)path);
+#else
+ strcpy(state->path, path);
+#endif
- /* open the file with the appropriate mode (or just use fd) */
- state->fd = fd != -1 ? fd :
- open(path,
+ /* compute the flags for open() */
+ oflag =
#ifdef O_LARGEFILE
- O_LARGEFILE |
+ O_LARGEFILE |
#endif
#ifdef O_BINARY
- O_BINARY |
+ O_BINARY |
+#endif
+#ifdef O_CLOEXEC
+ (cloexec ? O_CLOEXEC : 0) |
#endif
- (state->mode == GZ_READ ?
- O_RDONLY :
- (O_WRONLY | O_CREAT | (
- state->mode == GZ_WRITE ?
- O_TRUNC :
- O_APPEND))),
- 0666);
+ (state->mode == GZ_READ ?
+ O_RDONLY :
+ (O_WRONLY | O_CREAT |
+#ifdef O_EXCL
+ (exclusive ? O_EXCL : 0) |
+#endif
+ (state->mode == GZ_WRITE ?
+ O_TRUNC :
+ O_APPEND)));
+
+ /* open the file with the appropriate flags (or just use fd) */
+ state->fd = fd > -1 ? fd : (
+#ifdef WIDECHAR
+ fd == -2 ? _wopen(path, oflag, 0666) :
+#endif
+ open((const char *)path, oflag, 0666));
if (state->fd == -1) {
free(state->path);
free(state);
return NULL;
}
- if (state->mode == GZ_APPEND)
+ if (state->mode == GZ_APPEND) {
+ LSEEK(state->fd, 0, SEEK_END); /* so gzoffset() is correct */
state->mode = GZ_WRITE; /* simplify later checks */
+ }
/* save the current position for rewinding (only if reading) */
if (state->mode == GZ_READ) {
@@ -216,15 +290,29 @@ gzFile ZEXPORT gzdopen(fd, mode)
char *path; /* identifier for error messages */
gzFile gz;
- if (fd == -1 || (path = malloc(7 + 3 * sizeof(int))) == NULL)
+ if (fd == -1 || (path = (char *)malloc(7 + 3 * sizeof(int))) == NULL)
return NULL;
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+ (void)snprintf(path, 7 + 3 * sizeof(int), "<fd:%d>", fd);
+#else
sprintf(path, "<fd:%d>", fd); /* for debugging */
+#endif
gz = gz_open(path, fd, mode);
free(path);
return gz;
}
/* -- see zlib.h -- */
+#ifdef WIDECHAR
+gzFile ZEXPORT gzopen_w(path, mode)
+ const wchar_t *path;
+ const char *mode;
+{
+ return gz_open(path, -2, mode);
+}
+#endif
+
+/* -- see zlib.h -- */
int ZEXPORT gzbuffer(file, size)
gzFile file;
unsigned size;
@@ -243,8 +331,10 @@ int ZEXPORT gzbuffer(file, size)
return -1;
/* check and set requested size */
- if (size == 0)
- return -1;
+ if ((size << 1) < size)
+ return -1; /* need to be able to double it */
+ if (size < 2)
+ size = 2; /* need two bytes to check magic header */
state->want = size;
return 0;
}
@@ -261,7 +351,8 @@ int ZEXPORT gzrewind(file)
state = (gz_statep)file;
/* check that we're reading and that there's no error */
- if (state->mode != GZ_READ || state->err != Z_OK)
+ if (state->mode != GZ_READ ||
+ (state->err != Z_OK && state->err != Z_BUF_ERROR))
return -1;
/* back up and start over */
@@ -289,7 +380,7 @@ z_off64_t ZEXPORT gzseek64(file, offset, whence)
return -1;
/* check that there's no error */
- if (state->err != Z_OK)
+ if (state->err != Z_OK && state->err != Z_BUF_ERROR)
return -1;
/* can only seek from start or relative to current position */
@@ -298,31 +389,32 @@ z_off64_t ZEXPORT gzseek64(file, offset, whence)
/* normalize offset to a SEEK_CUR specification */
if (whence == SEEK_SET)
- offset -= state->pos;
+ offset -= state->x.pos;
else if (state->seek)
offset += state->skip;
state->seek = 0;
/* if within raw area while reading, just go there */
if (state->mode == GZ_READ && state->how == COPY &&
- state->pos + offset >= state->raw) {
- ret = LSEEK(state->fd, offset - state->have, SEEK_CUR);
+ state->x.pos + offset >= 0) {
+ ret = LSEEK(state->fd, offset - state->x.have, SEEK_CUR);
if (ret == -1)
return -1;
- state->have = 0;
+ state->x.have = 0;
state->eof = 0;
+ state->past = 0;
state->seek = 0;
gz_error(state, Z_OK, NULL);
state->strm.avail_in = 0;
- state->pos += offset;
- return state->pos;
+ state->x.pos += offset;
+ return state->x.pos;
}
/* calculate skip amount, rewinding if needed for back seek when reading */
if (offset < 0) {
if (state->mode != GZ_READ) /* writing -- can't go backwards */
return -1;
- offset += state->pos;
+ offset += state->x.pos;
if (offset < 0) /* before start of file! */
return -1;
if (gzrewind(file) == -1) /* rewind, then skip to offset */
@@ -331,11 +423,11 @@ z_off64_t ZEXPORT gzseek64(file, offset, whence)
/* if reading, skip what's in output buffer (one less gzgetc() check) */
if (state->mode == GZ_READ) {
- n = GT_OFF(state->have) || (z_off64_t)state->have > offset ?
- (unsigned)offset : state->have;
- state->have -= n;
- state->next += n;
- state->pos += n;
+ n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > offset ?
+ (unsigned)offset : state->x.have;
+ state->x.have -= n;
+ state->x.next += n;
+ state->x.pos += n;
offset -= n;
}
@@ -344,7 +436,7 @@ z_off64_t ZEXPORT gzseek64(file, offset, whence)
state->seek = 1;
state->skip = offset;
}
- return state->pos + offset;
+ return state->x.pos + offset;
}
/* -- see zlib.h -- */
@@ -373,7 +465,7 @@ z_off64_t ZEXPORT gztell64(file)
return -1;
/* return position */
- return state->pos + (state->seek ? state->skip : 0);
+ return state->x.pos + (state->seek ? state->skip : 0);
}
/* -- see zlib.h -- */
@@ -433,8 +525,7 @@ int ZEXPORT gzeof(file)
return 0;
/* return end-of-file state */
- return state->mode == GZ_READ ?
- (state->eof && state->strm.avail_in == 0 && state->have == 0) : 0;
+ return state->mode == GZ_READ ? state->past : 0;
}
/* -- see zlib.h -- */
@@ -454,7 +545,8 @@ const char * ZEXPORT gzerror(file, errnum)
/* return error information */
if (errnum != NULL)
*errnum = state->err;
- return state->msg == NULL ? "" : state->msg;
+ return state->err == Z_MEM_ERROR ? "out of memory" :
+ (state->msg == NULL ? "" : state->msg);
}
/* -- see zlib.h -- */
@@ -471,8 +563,10 @@ void ZEXPORT gzclearerr(file)
return;
/* clear error and end-of-file */
- if (state->mode == GZ_READ)
+ if (state->mode == GZ_READ) {
state->eof = 0;
+ state->past = 0;
+ }
gz_error(state, Z_OK, NULL);
}
@@ -494,27 +588,33 @@ void ZLIB_INTERNAL gz_error(state, err, msg)
state->msg = NULL;
}
+ /* if fatal, set state->x.have to 0 so that the gzgetc() macro fails */
+ if (err != Z_OK && err != Z_BUF_ERROR)
+ state->x.have = 0;
+
/* set error code, and if no message, then done */
state->err = err;
if (msg == NULL)
return;
- /* for an out of memory error, save as static string */
- if (err == Z_MEM_ERROR) {
- state->msg = (char *)msg;
+ /* for an out of memory error, return literal string when requested */
+ if (err == Z_MEM_ERROR)
return;
- }
/* construct error message with path */
- if ((state->msg = malloc(strlen(state->path) + strlen(msg) + 3)) == NULL) {
+ if ((state->msg = (char *)malloc(strlen(state->path) + strlen(msg) + 3)) ==
+ NULL) {
state->err = Z_MEM_ERROR;
- state->msg = (char *)"out of memory";
return;
}
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+ (void)snprintf(state->msg, strlen(state->path) + strlen(msg) + 3,
+ "%s%s%s", state->path, ": ", msg);
+#else
strcpy(state->msg, state->path);
strcat(state->msg, ": ");
strcat(state->msg, msg);
- return;
+#endif
}
#ifndef INT_MAX
diff --git a/src/3rdparty/zlib/src/gzread.c b/src/3rdparty/zlib/src/gzread.c
new file mode 100644
index 0000000000..956b91ea7d
--- /dev/null
+++ b/src/3rdparty/zlib/src/gzread.c
@@ -0,0 +1,654 @@
+/* gzread.c -- zlib functions for reading gzip files
+ * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013, 2016 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "gzguts.h"
+
+/* Local functions */
+local int gz_load OF((gz_statep, unsigned char *, unsigned, unsigned *));
+local int gz_avail OF((gz_statep));
+local int gz_look OF((gz_statep));
+local int gz_decomp OF((gz_statep));
+local int gz_fetch OF((gz_statep));
+local int gz_skip OF((gz_statep, z_off64_t));
+local z_size_t gz_read OF((gz_statep, voidp, z_size_t));
+
+/* Use read() to load a buffer -- return -1 on error, otherwise 0. Read from
+ state->fd, and update state->eof, state->err, and state->msg as appropriate.
+ This function needs to loop on read(), since read() is not guaranteed to
+ read the number of bytes requested, depending on the type of descriptor. */
+local int gz_load(state, buf, len, have)
+ gz_statep state;
+ unsigned char *buf;
+ unsigned len;
+ unsigned *have;
+{
+ int ret;
+ unsigned get, max = ((unsigned)-1 >> 2) + 1;
+
+ *have = 0;
+ do {
+ get = len - *have;
+ if (get > max)
+ get = max;
+ ret = read(state->fd, buf + *have, get);
+ if (ret <= 0)
+ break;
+ *have += (unsigned)ret;
+ } while (*have < len);
+ if (ret < 0) {
+ gz_error(state, Z_ERRNO, zstrerror());
+ return -1;
+ }
+ if (ret == 0)
+ state->eof = 1;
+ return 0;
+}
+
+/* Load up input buffer and set eof flag if last data loaded -- return -1 on
+ error, 0 otherwise. Note that the eof flag is set when the end of the input
+ file is reached, even though there may be unused data in the buffer. Once
+ that data has been used, no more attempts will be made to read the file.
+ If strm->avail_in != 0, then the current data is moved to the beginning of
+ the input buffer, and then the remainder of the buffer is loaded with the
+ available data from the input file. */
+local int gz_avail(state)
+ gz_statep state;
+{
+ unsigned got;
+ z_streamp strm = &(state->strm);
+
+ if (state->err != Z_OK && state->err != Z_BUF_ERROR)
+ return -1;
+ if (state->eof == 0) {
+ if (strm->avail_in) { /* copy what's there to the start */
+ unsigned char *p = state->in;
+ unsigned const char *q = strm->next_in;
+ unsigned n = strm->avail_in;
+ do {
+ *p++ = *q++;
+ } while (--n);
+ }
+ if (gz_load(state, state->in + strm->avail_in,
+ state->size - strm->avail_in, &got) == -1)
+ return -1;
+ strm->avail_in += got;
+ strm->next_in = state->in;
+ }
+ return 0;
+}
+
+/* Look for gzip header, set up for inflate or copy. state->x.have must be 0.
+ If this is the first time in, allocate required memory. state->how will be
+ left unchanged if there is no more input data available, will be set to COPY
+ if there is no gzip header and direct copying will be performed, or it will
+ be set to GZIP for decompression. If direct copying, then leftover input
+ data from the input buffer will be copied to the output buffer. In that
+ case, all further file reads will be directly to either the output buffer or
+ a user buffer. If decompressing, the inflate state will be initialized.
+ gz_look() will return 0 on success or -1 on failure. */
+local int gz_look(state)
+ gz_statep state;
+{
+ z_streamp strm = &(state->strm);
+
+ /* allocate read buffers and inflate memory */
+ if (state->size == 0) {
+ /* allocate buffers */
+ state->in = (unsigned char *)malloc(state->want);
+ state->out = (unsigned char *)malloc(state->want << 1);
+ if (state->in == NULL || state->out == NULL) {
+ free(state->out);
+ free(state->in);
+ gz_error(state, Z_MEM_ERROR, "out of memory");
+ return -1;
+ }
+ state->size = state->want;
+
+ /* allocate inflate memory */
+ state->strm.zalloc = Z_NULL;
+ state->strm.zfree = Z_NULL;
+ state->strm.opaque = Z_NULL;
+ state->strm.avail_in = 0;
+ state->strm.next_in = Z_NULL;
+ if (inflateInit2(&(state->strm), 15 + 16) != Z_OK) { /* gunzip */
+ free(state->out);
+ free(state->in);
+ state->size = 0;
+ gz_error(state, Z_MEM_ERROR, "out of memory");
+ return -1;
+ }
+ }
+
+ /* get at least the magic bytes in the input buffer */
+ if (strm->avail_in < 2) {
+ if (gz_avail(state) == -1)
+ return -1;
+ if (strm->avail_in == 0)
+ return 0;
+ }
+
+ /* look for gzip magic bytes -- if there, do gzip decoding (note: there is
+ a logical dilemma here when considering the case of a partially written
+ gzip file, to wit, if a single 31 byte is written, then we cannot tell
+ whether this is a single-byte file, or just a partially written gzip
+ file -- for here we assume that if a gzip file is being written, then
+ the header will be written in a single operation, so that reading a
+ single byte is sufficient indication that it is not a gzip file) */
+ if (strm->avail_in > 1 &&
+ strm->next_in[0] == 31 && strm->next_in[1] == 139) {
+ inflateReset(strm);
+ state->how = GZIP;
+ state->direct = 0;
+ return 0;
+ }
+
+ /* no gzip header -- if we were decoding gzip before, then this is trailing
+ garbage. Ignore the trailing garbage and finish. */
+ if (state->direct == 0) {
+ strm->avail_in = 0;
+ state->eof = 1;
+ state->x.have = 0;
+ return 0;
+ }
+
+ /* doing raw i/o, copy any leftover input to output -- this assumes that
+ the output buffer is larger than the input buffer, which also assures
+ space for gzungetc() */
+ state->x.next = state->out;
+ if (strm->avail_in) {
+ memcpy(state->x.next, strm->next_in, strm->avail_in);
+ state->x.have = strm->avail_in;
+ strm->avail_in = 0;
+ }
+ state->how = COPY;
+ state->direct = 1;
+ return 0;
+}
+
+/* Decompress from input to the provided next_out and avail_out in the state.
+ On return, state->x.have and state->x.next point to the just decompressed
+ data. If the gzip stream completes, state->how is reset to LOOK to look for
+ the next gzip stream or raw data, once state->x.have is depleted. Returns 0
+ on success, -1 on failure. */
+local int gz_decomp(state)
+ gz_statep state;
+{
+ int ret = Z_OK;
+ unsigned had;
+ z_streamp strm = &(state->strm);
+
+ /* fill output buffer up to end of deflate stream */
+ had = strm->avail_out;
+ do {
+ /* get more input for inflate() */
+ if (strm->avail_in == 0 && gz_avail(state) == -1)
+ return -1;
+ if (strm->avail_in == 0) {
+ gz_error(state, Z_BUF_ERROR, "unexpected end of file");
+ break;
+ }
+
+ /* decompress and handle errors */
+ ret = inflate(strm, Z_NO_FLUSH);
+ if (ret == Z_STREAM_ERROR || ret == Z_NEED_DICT) {
+ gz_error(state, Z_STREAM_ERROR,
+ "internal error: inflate stream corrupt");
+ return -1;
+ }
+ if (ret == Z_MEM_ERROR) {
+ gz_error(state, Z_MEM_ERROR, "out of memory");
+ return -1;
+ }
+ if (ret == Z_DATA_ERROR) { /* deflate stream invalid */
+ gz_error(state, Z_DATA_ERROR,
+ strm->msg == NULL ? "compressed data error" : strm->msg);
+ return -1;
+ }
+ } while (strm->avail_out && ret != Z_STREAM_END);
+
+ /* update available output */
+ state->x.have = had - strm->avail_out;
+ state->x.next = strm->next_out - state->x.have;
+
+ /* if the gzip stream completed successfully, look for another */
+ if (ret == Z_STREAM_END)
+ state->how = LOOK;
+
+ /* good decompression */
+ return 0;
+}
+
+/* Fetch data and put it in the output buffer. Assumes state->x.have is 0.
+ Data is either copied from the input file or decompressed from the input
+ file depending on state->how. If state->how is LOOK, then a gzip header is
+ looked for to determine whether to copy or decompress. Returns -1 on error,
+ otherwise 0. gz_fetch() will leave state->how as COPY or GZIP unless the
+ end of the input file has been reached and all data has been processed. */
+local int gz_fetch(state)
+ gz_statep state;
+{
+ z_streamp strm = &(state->strm);
+
+ do {
+ switch(state->how) {
+ case LOOK: /* -> LOOK, COPY (only if never GZIP), or GZIP */
+ if (gz_look(state) == -1)
+ return -1;
+ if (state->how == LOOK)
+ return 0;
+ break;
+ case COPY: /* -> COPY */
+ if (gz_load(state, state->out, state->size << 1, &(state->x.have))
+ == -1)
+ return -1;
+ state->x.next = state->out;
+ return 0;
+ case GZIP: /* -> GZIP or LOOK (if end of gzip stream) */
+ strm->avail_out = state->size << 1;
+ strm->next_out = state->out;
+ if (gz_decomp(state) == -1)
+ return -1;
+ }
+ } while (state->x.have == 0 && (!state->eof || strm->avail_in));
+ return 0;
+}
+
+/* Skip len uncompressed bytes of output. Return -1 on error, 0 on success. */
+local int gz_skip(state, len)
+ gz_statep state;
+ z_off64_t len;
+{
+ unsigned n;
+
+ /* skip over len bytes or reach end-of-file, whichever comes first */
+ while (len)
+ /* skip over whatever is in output buffer */
+ if (state->x.have) {
+ n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > len ?
+ (unsigned)len : state->x.have;
+ state->x.have -= n;
+ state->x.next += n;
+ state->x.pos += n;
+ len -= n;
+ }
+
+ /* output buffer empty -- return if we're at the end of the input */
+ else if (state->eof && state->strm.avail_in == 0)
+ break;
+
+ /* need more data to skip -- load up output buffer */
+ else {
+ /* get more output, looking for header if required */
+ if (gz_fetch(state) == -1)
+ return -1;
+ }
+ return 0;
+}
+
+/* Read len bytes into buf from file, or less than len up to the end of the
+ input. Return the number of bytes read. If zero is returned, either the
+ end of file was reached, or there was an error. state->err must be
+ consulted in that case to determine which. */
+local z_size_t gz_read(state, buf, len)
+ gz_statep state;
+ voidp buf;
+ z_size_t len;
+{
+ z_size_t got;
+ unsigned n;
+
+ /* if len is zero, avoid unnecessary operations */
+ if (len == 0)
+ return 0;
+
+ /* process a skip request */
+ if (state->seek) {
+ state->seek = 0;
+ if (gz_skip(state, state->skip) == -1)
+ return 0;
+ }
+
+ /* get len bytes to buf, or less than len if at the end */
+ got = 0;
+ do {
+ /* set n to the maximum amount of len that fits in an unsigned int */
+ n = -1;
+ if (n > len)
+ n = len;
+
+ /* first just try copying data from the output buffer */
+ if (state->x.have) {
+ if (state->x.have < n)
+ n = state->x.have;
+ memcpy(buf, state->x.next, n);
+ state->x.next += n;
+ state->x.have -= n;
+ }
+
+ /* output buffer empty -- return if we're at the end of the input */
+ else if (state->eof && state->strm.avail_in == 0) {
+ state->past = 1; /* tried to read past end */
+ break;
+ }
+
+ /* need output data -- for small len or new stream load up our output
+ buffer */
+ else if (state->how == LOOK || n < (state->size << 1)) {
+ /* get more output, looking for header if required */
+ if (gz_fetch(state) == -1)
+ return 0;
+ continue; /* no progress yet -- go back to copy above */
+ /* the copy above assures that we will leave with space in the
+ output buffer, allowing at least one gzungetc() to succeed */
+ }
+
+ /* large len -- read directly into user buffer */
+ else if (state->how == COPY) { /* read directly */
+ if (gz_load(state, (unsigned char *)buf, n, &n) == -1)
+ return 0;
+ }
+
+ /* large len -- decompress directly into user buffer */
+ else { /* state->how == GZIP */
+ state->strm.avail_out = n;
+ state->strm.next_out = (unsigned char *)buf;
+ if (gz_decomp(state) == -1)
+ return 0;
+ n = state->x.have;
+ state->x.have = 0;
+ }
+
+ /* update progress */
+ len -= n;
+ buf = (char *)buf + n;
+ got += n;
+ state->x.pos += n;
+ } while (len);
+
+ /* return number of bytes read into user buffer */
+ return got;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzread(file, buf, len)
+ gzFile file;
+ voidp buf;
+ unsigned len;
+{
+ gz_statep state;
+
+ /* get internal structure */
+ if (file == NULL)
+ return -1;
+ state = (gz_statep)file;
+
+ /* check that we're reading and that there's no (serious) error */
+ if (state->mode != GZ_READ ||
+ (state->err != Z_OK && state->err != Z_BUF_ERROR))
+ return -1;
+
+ /* since an int is returned, make sure len fits in one, otherwise return
+ with an error (this avoids a flaw in the interface) */
+ if ((int)len < 0) {
+ gz_error(state, Z_STREAM_ERROR, "request does not fit in an int");
+ return -1;
+ }
+
+ /* read len or fewer bytes to buf */
+ len = gz_read(state, buf, len);
+
+ /* check for an error */
+ if (len == 0 && state->err != Z_OK && state->err != Z_BUF_ERROR)
+ return -1;
+
+ /* return the number of bytes read (this is assured to fit in an int) */
+ return (int)len;
+}
+
+/* -- see zlib.h -- */
+z_size_t ZEXPORT gzfread(buf, size, nitems, file)
+ voidp buf;
+ z_size_t size;
+ z_size_t nitems;
+ gzFile file;
+{
+ z_size_t len;
+ gz_statep state;
+
+ /* get internal structure */
+ if (file == NULL)
+ return 0;
+ state = (gz_statep)file;
+
+ /* check that we're reading and that there's no (serious) error */
+ if (state->mode != GZ_READ ||
+ (state->err != Z_OK && state->err != Z_BUF_ERROR))
+ return 0;
+
+ /* compute bytes to read -- error on overflow */
+ len = nitems * size;
+ if (size && len / size != nitems) {
+ gz_error(state, Z_STREAM_ERROR, "request does not fit in a size_t");
+ return 0;
+ }
+
+ /* read len or fewer bytes to buf, return the number of full items read */
+ return len ? gz_read(state, buf, len) / size : 0;
+}
+
+/* -- see zlib.h -- */
+#ifdef Z_PREFIX_SET
+# undef z_gzgetc
+#else
+# undef gzgetc
+#endif
+int ZEXPORT gzgetc(file)
+ gzFile file;
+{
+ int ret;
+ unsigned char buf[1];
+ gz_statep state;
+
+ /* get internal structure */
+ if (file == NULL)
+ return -1;
+ state = (gz_statep)file;
+
+ /* check that we're reading and that there's no (serious) error */
+ if (state->mode != GZ_READ ||
+ (state->err != Z_OK && state->err != Z_BUF_ERROR))
+ return -1;
+
+ /* try output buffer (no need to check for skip request) */
+ if (state->x.have) {
+ state->x.have--;
+ state->x.pos++;
+ return *(state->x.next)++;
+ }
+
+ /* nothing there -- try gz_read() */
+ ret = gz_read(state, buf, 1);
+ return ret < 1 ? -1 : buf[0];
+}
+
+int ZEXPORT gzgetc_(file)
+gzFile file;
+{
+ return gzgetc(file);
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzungetc(c, file)
+ int c;
+ gzFile file;
+{
+ gz_statep state;
+
+ /* get internal structure */
+ if (file == NULL)
+ return -1;
+ state = (gz_statep)file;
+
+ /* check that we're reading and that there's no (serious) error */
+ if (state->mode != GZ_READ ||
+ (state->err != Z_OK && state->err != Z_BUF_ERROR))
+ return -1;
+
+ /* process a skip request */
+ if (state->seek) {
+ state->seek = 0;
+ if (gz_skip(state, state->skip) == -1)
+ return -1;
+ }
+
+ /* can't push EOF */
+ if (c < 0)
+ return -1;
+
+ /* if output buffer empty, put byte at end (allows more pushing) */
+ if (state->x.have == 0) {
+ state->x.have = 1;
+ state->x.next = state->out + (state->size << 1) - 1;
+ state->x.next[0] = (unsigned char)c;
+ state->x.pos--;
+ state->past = 0;
+ return c;
+ }
+
+ /* if no room, give up (must have already done a gzungetc()) */
+ if (state->x.have == (state->size << 1)) {
+ gz_error(state, Z_DATA_ERROR, "out of room to push characters");
+ return -1;
+ }
+
+ /* slide output data if needed and insert byte before existing data */
+ if (state->x.next == state->out) {
+ unsigned char *src = state->out + state->x.have;
+ unsigned char *dest = state->out + (state->size << 1);
+ while (src > state->out)
+ *--dest = *--src;
+ state->x.next = dest;
+ }
+ state->x.have++;
+ state->x.next--;
+ state->x.next[0] = (unsigned char)c;
+ state->x.pos--;
+ state->past = 0;
+ return c;
+}
+
+/* -- see zlib.h -- */
+char * ZEXPORT gzgets(file, buf, len)
+ gzFile file;
+ char *buf;
+ int len;
+{
+ unsigned left, n;
+ char *str;
+ unsigned char *eol;
+ gz_statep state;
+
+ /* check parameters and get internal structure */
+ if (file == NULL || buf == NULL || len < 1)
+ return NULL;
+ state = (gz_statep)file;
+
+ /* check that we're reading and that there's no (serious) error */
+ if (state->mode != GZ_READ ||
+ (state->err != Z_OK && state->err != Z_BUF_ERROR))
+ return NULL;
+
+ /* process a skip request */
+ if (state->seek) {
+ state->seek = 0;
+ if (gz_skip(state, state->skip) == -1)
+ return NULL;
+ }
+
+ /* copy output bytes up to new line or len - 1, whichever comes first --
+ append a terminating zero to the string (we don't check for a zero in
+ the contents, let the user worry about that) */
+ str = buf;
+ left = (unsigned)len - 1;
+ if (left) do {
+ /* assure that something is in the output buffer */
+ if (state->x.have == 0 && gz_fetch(state) == -1)
+ return NULL; /* error */
+ if (state->x.have == 0) { /* end of file */
+ state->past = 1; /* read past end */
+ break; /* return what we have */
+ }
+
+ /* look for end-of-line in current output buffer */
+ n = state->x.have > left ? left : state->x.have;
+ eol = (unsigned char *)memchr(state->x.next, '\n', n);
+ if (eol != NULL)
+ n = (unsigned)(eol - state->x.next) + 1;
+
+ /* copy through end-of-line, or remainder if not found */
+ memcpy(buf, state->x.next, n);
+ state->x.have -= n;
+ state->x.next += n;
+ state->x.pos += n;
+ left -= n;
+ buf += n;
+ } while (left && eol == NULL);
+
+ /* return terminated string, or if nothing, end of file */
+ if (buf == str)
+ return NULL;
+ buf[0] = 0;
+ return str;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzdirect(file)
+ gzFile file;
+{
+ gz_statep state;
+
+ /* get internal structure */
+ if (file == NULL)
+ return 0;
+ state = (gz_statep)file;
+
+ /* if the state is not known, but we can find out, then do so (this is
+ mainly for right after a gzopen() or gzdopen()) */
+ if (state->mode == GZ_READ && state->how == LOOK && state->x.have == 0)
+ (void)gz_look(state);
+
+ /* return 1 if transparent, 0 if processing a gzip stream */
+ return state->direct;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzclose_r(file)
+ gzFile file;
+{
+ int ret, err;
+ gz_statep state;
+
+ /* get internal structure */
+ if (file == NULL)
+ return Z_STREAM_ERROR;
+ state = (gz_statep)file;
+
+ /* check that we're reading */
+ if (state->mode != GZ_READ)
+ return Z_STREAM_ERROR;
+
+ /* free memory and close file */
+ if (state->size) {
+ inflateEnd(&(state->strm));
+ free(state->out);
+ free(state->in);
+ }
+ err = state->err == Z_BUF_ERROR ? Z_BUF_ERROR : Z_OK;
+ gz_error(state, Z_OK, NULL);
+ free(state->path);
+ ret = close(state->fd);
+ free(state);
+ return ret ? Z_ERRNO : err;
+}
diff --git a/src/3rdparty/zlib/gzwrite.c b/src/3rdparty/zlib/src/gzwrite.c
index e8defc6887..c7b5651d70 100644
--- a/src/3rdparty/zlib/gzwrite.c
+++ b/src/3rdparty/zlib/src/gzwrite.c
@@ -1,5 +1,5 @@
/* gzwrite.c -- zlib functions for writing gzip files
- * Copyright (C) 2004, 2005, 2010 Mark Adler
+ * Copyright (C) 2004-2017 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -9,65 +9,94 @@
local int gz_init OF((gz_statep));
local int gz_comp OF((gz_statep, int));
local int gz_zero OF((gz_statep, z_off64_t));
+local z_size_t gz_write OF((gz_statep, voidpc, z_size_t));
/* Initialize state for writing a gzip file. Mark initialization by setting
- state->size to non-zero. Return -1 on failure or 0 on success. */
+ state->size to non-zero. Return -1 on a memory allocation failure, or 0 on
+ success. */
local int gz_init(state)
gz_statep state;
{
int ret;
z_streamp strm = &(state->strm);
- /* allocate input and output buffers */
- state->in = malloc(state->want);
- state->out = malloc(state->want);
- if (state->in == NULL || state->out == NULL) {
- if (state->out != NULL)
- free(state->out);
- if (state->in != NULL)
- free(state->in);
+ /* allocate input buffer (double size for gzprintf) */
+ state->in = (unsigned char *)malloc(state->want << 1);
+ if (state->in == NULL) {
gz_error(state, Z_MEM_ERROR, "out of memory");
return -1;
}
- /* allocate deflate memory, set up for gzip compression */
- strm->zalloc = Z_NULL;
- strm->zfree = Z_NULL;
- strm->opaque = Z_NULL;
- ret = deflateInit2(strm, state->level, Z_DEFLATED,
- 15 + 16, 8, state->strategy);
- if (ret != Z_OK) {
- free(state->in);
- gz_error(state, Z_MEM_ERROR, "out of memory");
- return -1;
+ /* only need output buffer and deflate state if compressing */
+ if (!state->direct) {
+ /* allocate output buffer */
+ state->out = (unsigned char *)malloc(state->want);
+ if (state->out == NULL) {
+ free(state->in);
+ gz_error(state, Z_MEM_ERROR, "out of memory");
+ return -1;
+ }
+
+ /* allocate deflate memory, set up for gzip compression */
+ strm->zalloc = Z_NULL;
+ strm->zfree = Z_NULL;
+ strm->opaque = Z_NULL;
+ ret = deflateInit2(strm, state->level, Z_DEFLATED,
+ MAX_WBITS + 16, DEF_MEM_LEVEL, state->strategy);
+ if (ret != Z_OK) {
+ free(state->out);
+ free(state->in);
+ gz_error(state, Z_MEM_ERROR, "out of memory");
+ return -1;
+ }
+ strm->next_in = NULL;
}
/* mark state as initialized */
state->size = state->want;
- /* initialize write buffer */
- strm->avail_out = state->size;
- strm->next_out = state->out;
- state->next = strm->next_out;
+ /* initialize write buffer if compressing */
+ if (!state->direct) {
+ strm->avail_out = state->size;
+ strm->next_out = state->out;
+ state->x.next = strm->next_out;
+ }
return 0;
}
/* Compress whatever is at avail_in and next_in and write to the output file.
- Return -1 if there is an error writing to the output file, otherwise 0.
- flush is assumed to be a valid deflate() flush value. If flush is Z_FINISH,
- then the deflate() state is reset to start a new gzip stream. */
+ Return -1 if there is an error writing to the output file or if gz_init()
+ fails to allocate memory, otherwise 0. flush is assumed to be a valid
+ deflate() flush value. If flush is Z_FINISH, then the deflate() state is
+ reset to start a new gzip stream. If gz->direct is true, then simply write
+ to the output file without compressing, and ignore flush. */
local int gz_comp(state, flush)
gz_statep state;
int flush;
{
- int ret, got;
- unsigned have;
+ int ret, writ;
+ unsigned have, put, max = ((unsigned)-1 >> 2) + 1;
z_streamp strm = &(state->strm);
/* allocate memory if this is the first time through */
if (state->size == 0 && gz_init(state) == -1)
return -1;
+ /* write directly if requested */
+ if (state->direct) {
+ while (strm->avail_in) {
+ put = strm->avail_in > max ? max : strm->avail_in;
+ writ = write(state->fd, strm->next_in, put);
+ if (writ < 0) {
+ gz_error(state, Z_ERRNO, zstrerror());
+ return -1;
+ }
+ strm->avail_in -= (unsigned)writ;
+ strm->next_in += writ;
+ }
+ return 0;
+ }
+
/* run deflate() on provided input until it produces no more output */
ret = Z_OK;
do {
@@ -75,17 +104,21 @@ local int gz_comp(state, flush)
doing Z_FINISH then don't write until we get to Z_STREAM_END */
if (strm->avail_out == 0 || (flush != Z_NO_FLUSH &&
(flush != Z_FINISH || ret == Z_STREAM_END))) {
- have = (unsigned)(strm->next_out - state->next);
- if (have && ((got = write(state->fd, state->next, have)) < 0 ||
- (unsigned)got != have)) {
- gz_error(state, Z_ERRNO, zstrerror());
- return -1;
+ while (strm->next_out > state->x.next) {
+ put = strm->next_out - state->x.next > (int)max ? max :
+ (unsigned)(strm->next_out - state->x.next);
+ writ = write(state->fd, state->x.next, put);
+ if (writ < 0) {
+ gz_error(state, Z_ERRNO, zstrerror());
+ return -1;
+ }
+ state->x.next += writ;
}
if (strm->avail_out == 0) {
strm->avail_out = state->size;
strm->next_out = state->out;
+ state->x.next = state->out;
}
- state->next = strm->next_out;
}
/* compress */
@@ -107,7 +140,8 @@ local int gz_comp(state, flush)
return 0;
}
-/* Compress len zeros to output. Return -1 on error, 0 on success. */
+/* Compress len zeros to output. Return -1 on a write error or memory
+ allocation failure by gz_comp(), or 0 on success. */
local int gz_zero(state, len)
gz_statep state;
z_off64_t len;
@@ -131,7 +165,7 @@ local int gz_zero(state, len)
}
strm->avail_in = n;
strm->next_in = state->in;
- state->pos += n;
+ state->x.pos += n;
if (gz_comp(state, Z_NO_FLUSH) == -1)
return -1;
len -= n;
@@ -139,33 +173,14 @@ local int gz_zero(state, len)
return 0;
}
-/* -- see zlib.h -- */
-int ZEXPORT gzwrite(file, buf, len)
- gzFile file;
+/* Write len bytes from buf to file. Return the number of bytes written. If
+ the returned value is less than len, then there was an error. */
+local z_size_t gz_write(state, buf, len)
+ gz_statep state;
voidpc buf;
- unsigned len;
+ z_size_t len;
{
- unsigned put = len;
- unsigned n;
- gz_statep state;
- z_streamp strm;
-
- /* get internal structure */
- if (file == NULL)
- return 0;
- state = (gz_statep)file;
- strm = &(state->strm);
-
- /* check that we're writing and that there's no error */
- if (state->mode != GZ_WRITE || state->err != Z_OK)
- return 0;
-
- /* since an int is returned, make sure len fits in one, otherwise return
- with an error (this avoids the flaw in the interface) */
- if ((int)len < 0) {
- gz_error(state, Z_BUF_ERROR, "requested length does not fit in int");
- return 0;
- }
+ z_size_t put = len;
/* if len is zero, avoid unnecessary operations */
if (len == 0)
@@ -186,35 +201,103 @@ int ZEXPORT gzwrite(file, buf, len)
if (len < state->size) {
/* copy to input buffer, compress when full */
do {
- if (strm->avail_in == 0)
- strm->next_in = state->in;
- n = state->size - strm->avail_in;
- if (n > len)
- n = len;
- memcpy(strm->next_in + strm->avail_in, buf, n);
- strm->avail_in += n;
- state->pos += n;
- buf = (char *)buf + n;
- len -= n;
+ unsigned have, copy;
+
+ if (state->strm.avail_in == 0)
+ state->strm.next_in = state->in;
+ have = (unsigned)((state->strm.next_in + state->strm.avail_in) -
+ state->in);
+ copy = state->size - have;
+ if (copy > len)
+ copy = len;
+ memcpy(state->in + have, buf, copy);
+ state->strm.avail_in += copy;
+ state->x.pos += copy;
+ buf = (const char *)buf + copy;
+ len -= copy;
if (len && gz_comp(state, Z_NO_FLUSH) == -1)
return 0;
} while (len);
}
else {
/* consume whatever's left in the input buffer */
- if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1)
+ if (state->strm.avail_in && gz_comp(state, Z_NO_FLUSH) == -1)
return 0;
/* directly compress user buffer to file */
- strm->avail_in = len;
- strm->next_in = (voidp)buf;
- state->pos += len;
- if (gz_comp(state, Z_NO_FLUSH) == -1)
- return 0;
+ state->strm.next_in = (z_const Bytef *)buf;
+ do {
+ unsigned n = (unsigned)-1;
+ if (n > len)
+ n = len;
+ state->strm.avail_in = n;
+ state->x.pos += n;
+ if (gz_comp(state, Z_NO_FLUSH) == -1)
+ return 0;
+ len -= n;
+ } while (len);
+ }
+
+ /* input was all buffered or compressed */
+ return put;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzwrite(file, buf, len)
+ gzFile file;
+ voidpc buf;
+ unsigned len;
+{
+ gz_statep state;
+
+ /* get internal structure */
+ if (file == NULL)
+ return 0;
+ state = (gz_statep)file;
+
+ /* check that we're writing and that there's no error */
+ if (state->mode != GZ_WRITE || state->err != Z_OK)
+ return 0;
+
+ /* since an int is returned, make sure len fits in one, otherwise return
+ with an error (this avoids a flaw in the interface) */
+ if ((int)len < 0) {
+ gz_error(state, Z_DATA_ERROR, "requested length does not fit in int");
+ return 0;
}
- /* input was all buffered or compressed (put will fit in int) */
- return (int)put;
+ /* write len bytes from buf (the return value will fit in an int) */
+ return (int)gz_write(state, buf, len);
+}
+
+/* -- see zlib.h -- */
+z_size_t ZEXPORT gzfwrite(buf, size, nitems, file)
+ voidpc buf;
+ z_size_t size;
+ z_size_t nitems;
+ gzFile file;
+{
+ z_size_t len;
+ gz_statep state;
+
+ /* get internal structure */
+ if (file == NULL)
+ return 0;
+ state = (gz_statep)file;
+
+ /* check that we're writing and that there's no error */
+ if (state->mode != GZ_WRITE || state->err != Z_OK)
+ return 0;
+
+ /* compute bytes to read -- error on overflow */
+ len = nitems * size;
+ if (size && len / size != nitems) {
+ gz_error(state, Z_STREAM_ERROR, "request does not fit in a size_t");
+ return 0;
+ }
+
+ /* write len bytes to buf, return the number of full items written */
+ return len ? gz_write(state, buf, len) / size : 0;
}
/* -- see zlib.h -- */
@@ -222,6 +305,7 @@ int ZEXPORT gzputc(file, c)
gzFile file;
int c;
{
+ unsigned have;
unsigned char buf[1];
gz_statep state;
z_streamp strm;
@@ -245,19 +329,23 @@ int ZEXPORT gzputc(file, c)
/* try writing to input buffer for speed (state->size == 0 if buffer not
initialized) */
- if (strm->avail_in < state->size) {
+ if (state->size) {
if (strm->avail_in == 0)
strm->next_in = state->in;
- strm->next_in[strm->avail_in++] = c;
- state->pos++;
- return c;
+ have = (unsigned)((strm->next_in + strm->avail_in) - state->in);
+ if (have < state->size) {
+ state->in[have] = (unsigned char)c;
+ strm->avail_in++;
+ state->x.pos++;
+ return c & 0xff;
+ }
}
/* no room in buffer or not initialized, use gz_write() */
- buf[0] = c;
- if (gzwrite(file, buf, 1) != 1)
+ buf[0] = (unsigned char)c;
+ if (gz_write(state, buf, 1) != 1)
return -1;
- return c;
+ return c & 0xff;
}
/* -- see zlib.h -- */
@@ -266,87 +354,112 @@ int ZEXPORT gzputs(file, str)
const char *str;
{
int ret;
- unsigned len;
+ z_size_t len;
+ gz_statep state;
+
+ /* get internal structure */
+ if (file == NULL)
+ return -1;
+ state = (gz_statep)file;
+
+ /* check that we're writing and that there's no error */
+ if (state->mode != GZ_WRITE || state->err != Z_OK)
+ return -1;
/* write string */
- len = (unsigned)strlen(str);
- ret = gzwrite(file, str, len);
+ len = strlen(str);
+ ret = gz_write(state, str, len);
return ret == 0 && len != 0 ? -1 : ret;
}
-#ifdef STDC
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
#include <stdarg.h>
/* -- see zlib.h -- */
-int ZEXPORTVA gzprintf (gzFile file, const char *format, ...)
+int ZEXPORTVA gzvprintf(gzFile file, const char *format, va_list va)
{
- int size, len;
+ int len;
+ unsigned left;
+ char *next;
gz_statep state;
z_streamp strm;
- va_list va;
/* get internal structure */
if (file == NULL)
- return -1;
+ return Z_STREAM_ERROR;
state = (gz_statep)file;
strm = &(state->strm);
/* check that we're writing and that there's no error */
if (state->mode != GZ_WRITE || state->err != Z_OK)
- return 0;
+ return Z_STREAM_ERROR;
/* make sure we have some buffer space */
if (state->size == 0 && gz_init(state) == -1)
- return 0;
+ return state->err;
/* check for seek request */
if (state->seek) {
state->seek = 0;
if (gz_zero(state, state->skip) == -1)
- return 0;
+ return state->err;
}
- /* consume whatever's left in the input buffer */
- if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1)
- return 0;
-
- /* do the printf() into the input buffer, put length in len */
- size = (int)(state->size);
- state->in[size - 1] = 0;
- va_start(va, format);
+ /* do the printf() into the input buffer, put length in len -- the input
+ buffer is double-sized just for this function, so there is guaranteed to
+ be state->size bytes available after the current contents */
+ if (strm->avail_in == 0)
+ strm->next_in = state->in;
+ next = (char *)(state->in + (strm->next_in - state->in) + strm->avail_in);
+ next[state->size - 1] = 0;
#ifdef NO_vsnprintf
# ifdef HAS_vsprintf_void
- (void)vsprintf(state->in, format, va);
- va_end(va);
- for (len = 0; len < size; len++)
- if (state->in[len] == 0) break;
+ (void)vsprintf(next, format, va);
+ for (len = 0; len < state->size; len++)
+ if (next[len] == 0) break;
# else
- len = vsprintf(state->in, format, va);
- va_end(va);
+ len = vsprintf(next, format, va);
# endif
#else
# ifdef HAS_vsnprintf_void
- (void)vsnprintf(state->in, size, format, va);
- va_end(va);
- len = strlen(state->in);
+ (void)vsnprintf(next, state->size, format, va);
+ len = strlen(next);
# else
- len = vsnprintf((char *)(state->in), size, format, va);
- va_end(va);
+ len = vsnprintf(next, state->size, format, va);
# endif
#endif
/* check that printf() results fit in buffer */
- if (len <= 0 || len >= (int)size || state->in[size - 1] != 0)
+ if (len == 0 || (unsigned)len >= state->size || next[state->size - 1] != 0)
return 0;
- /* update buffer and position, defer compression until needed */
- strm->avail_in = (unsigned)len;
- strm->next_in = state->in;
- state->pos += len;
+ /* update buffer and position, compress first half if past that */
+ strm->avail_in += (unsigned)len;
+ state->x.pos += len;
+ if (strm->avail_in >= state->size) {
+ left = strm->avail_in - state->size;
+ strm->avail_in = state->size;
+ if (gz_comp(state, Z_NO_FLUSH) == -1)
+ return state->err;
+ memcpy(state->in, state->in + state->size, left);
+ strm->next_in = state->in;
+ strm->avail_in = left;
+ }
return len;
}
-#else /* !STDC */
+int ZEXPORTVA gzprintf(gzFile file, const char *format, ...)
+{
+ va_list va;
+ int ret;
+
+ va_start(va, format);
+ ret = gzvprintf(file, format, va);
+ va_end(va);
+ return ret;
+}
+
+#else /* !STDC && !Z_HAVE_STDARG_H */
/* -- see zlib.h -- */
int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
@@ -356,68 +469,82 @@ int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
a11, a12, a13, a14, a15, a16, a17, a18, a19, a20;
{
- int size, len;
+ unsigned len, left;
+ char *next;
gz_statep state;
z_streamp strm;
/* get internal structure */
if (file == NULL)
- return -1;
+ return Z_STREAM_ERROR;
state = (gz_statep)file;
strm = &(state->strm);
+ /* check that can really pass pointer in ints */
+ if (sizeof(int) != sizeof(void *))
+ return Z_STREAM_ERROR;
+
/* check that we're writing and that there's no error */
if (state->mode != GZ_WRITE || state->err != Z_OK)
- return 0;
+ return Z_STREAM_ERROR;
/* make sure we have some buffer space */
if (state->size == 0 && gz_init(state) == -1)
- return 0;
+ return state->error;
/* check for seek request */
if (state->seek) {
state->seek = 0;
if (gz_zero(state, state->skip) == -1)
- return 0;
+ return state->error;
}
- /* consume whatever's left in the input buffer */
- if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1)
- return 0;
-
- /* do the printf() into the input buffer, put length in len */
- size = (int)(state->size);
- state->in[size - 1] = 0;
+ /* do the printf() into the input buffer, put length in len -- the input
+ buffer is double-sized just for this function, so there is guaranteed to
+ be state->size bytes available after the current contents */
+ if (strm->avail_in == 0)
+ strm->next_in = state->in;
+ next = (char *)(strm->next_in + strm->avail_in);
+ next[state->size - 1] = 0;
#ifdef NO_snprintf
# ifdef HAS_sprintf_void
- sprintf(state->in, format, a1, a2, a3, a4, a5, a6, a7, a8,
- a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
+ sprintf(next, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12,
+ a13, a14, a15, a16, a17, a18, a19, a20);
for (len = 0; len < size; len++)
- if (state->in[len] == 0) break;
+ if (next[len] == 0)
+ break;
# else
- len = sprintf(state->in, format, a1, a2, a3, a4, a5, a6, a7, a8,
- a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
+ len = sprintf(next, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11,
+ a12, a13, a14, a15, a16, a17, a18, a19, a20);
# endif
#else
# ifdef HAS_snprintf_void
- snprintf(state->in, size, format, a1, a2, a3, a4, a5, a6, a7, a8,
- a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
- len = strlen(state->in);
+ snprintf(next, state->size, format, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+ a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
+ len = strlen(next);
# else
- len = snprintf(state->in, size, format, a1, a2, a3, a4, a5, a6, a7, a8,
- a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
+ len = snprintf(next, state->size, format, a1, a2, a3, a4, a5, a6, a7, a8,
+ a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
# endif
#endif
/* check that printf() results fit in buffer */
- if (len <= 0 || len >= (int)size || state->in[size - 1] != 0)
+ if (len == 0 || len >= state->size || next[state->size - 1] != 0)
return 0;
- /* update buffer and position, defer compression until needed */
- strm->avail_in = (unsigned)len;
- strm->next_in = state->in;
- state->pos += len;
- return len;
+ /* update buffer and position, compress first half if past that */
+ strm->avail_in += len;
+ state->x.pos += len;
+ if (strm->avail_in >= state->size) {
+ left = strm->avail_in - state->size;
+ strm->avail_in = state->size;
+ if (gz_comp(state, Z_NO_FLUSH) == -1)
+ return state->err;
+ memcpy(state->in, state->in + state->size, left);
+ strm->next_in = state->in;
+ strm->avail_in = left;
+ }
+ return (int)len;
}
#endif
@@ -431,7 +558,7 @@ int ZEXPORT gzflush(file, flush)
/* get internal structure */
if (file == NULL)
- return -1;
+ return Z_STREAM_ERROR;
state = (gz_statep)file;
/* check that we're writing and that there's no error */
@@ -446,11 +573,11 @@ int ZEXPORT gzflush(file, flush)
if (state->seek) {
state->seek = 0;
if (gz_zero(state, state->skip) == -1)
- return -1;
+ return state->err;
}
/* compress remaining data with requested flush */
- gz_comp(state, flush);
+ (void)gz_comp(state, flush);
return state->err;
}
@@ -481,13 +608,13 @@ int ZEXPORT gzsetparams(file, level, strategy)
if (state->seek) {
state->seek = 0;
if (gz_zero(state, state->skip) == -1)
- return -1;
+ return state->err;
}
/* change compression parameters for subsequent input */
if (state->size) {
/* flush previous input with previous parameters before changing */
- if (strm->avail_in && gz_comp(state, Z_PARTIAL_FLUSH) == -1)
+ if (strm->avail_in && gz_comp(state, Z_BLOCK) == -1)
return state->err;
deflateParams(strm, level, strategy);
}
@@ -500,7 +627,7 @@ int ZEXPORT gzsetparams(file, level, strategy)
int ZEXPORT gzclose_w(file)
gzFile file;
{
- int ret = 0;
+ int ret = Z_OK;
gz_statep state;
/* get internal structure */
@@ -515,17 +642,24 @@ int ZEXPORT gzclose_w(file)
/* check for seek request */
if (state->seek) {
state->seek = 0;
- ret += gz_zero(state, state->skip);
+ if (gz_zero(state, state->skip) == -1)
+ ret = state->err;
}
/* flush, free memory, and close file */
- ret += gz_comp(state, Z_FINISH);
- (void)deflateEnd(&(state->strm));
- free(state->out);
- free(state->in);
+ if (gz_comp(state, Z_FINISH) == -1)
+ ret = state->err;
+ if (state->size) {
+ if (!state->direct) {
+ (void)deflateEnd(&(state->strm));
+ free(state->out);
+ }
+ free(state->in);
+ }
gz_error(state, Z_OK, NULL);
free(state->path);
- ret += close(state->fd);
+ if (close(state->fd) == -1)
+ ret = Z_ERRNO;
free(state);
- return ret ? Z_ERRNO : Z_OK;
+ return ret;
}
diff --git a/src/3rdparty/zlib/infback.c b/src/3rdparty/zlib/src/infback.c
index af3a8c965d..59679ecbfc 100644
--- a/src/3rdparty/zlib/infback.c
+++ b/src/3rdparty/zlib/src/infback.c
@@ -1,5 +1,5 @@
/* infback.c -- inflate using a call-back interface
- * Copyright (C) 1995-2009 Mark Adler
+ * Copyright (C) 1995-2016 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -42,17 +42,26 @@ int stream_size;
return Z_STREAM_ERROR;
strm->msg = Z_NULL; /* in case we return an error */
if (strm->zalloc == (alloc_func)0) {
+#ifdef Z_SOLO
+ return Z_STREAM_ERROR;
+#else
strm->zalloc = zcalloc;
strm->opaque = (voidpf)0;
+#endif
}
- if (strm->zfree == (free_func)0) strm->zfree = zcfree;
+ if (strm->zfree == (free_func)0)
+#ifdef Z_SOLO
+ return Z_STREAM_ERROR;
+#else
+ strm->zfree = zcfree;
+#endif
state = (struct inflate_state FAR *)ZALLOC(strm, 1,
sizeof(struct inflate_state));
if (state == Z_NULL) return Z_MEM_ERROR;
Tracev((stderr, "inflate: allocated\n"));
strm->state = (struct internal_state FAR *)state;
state->dmax = 32768U;
- state->wbits = windowBits;
+ state->wbits = (uInt)windowBits;
state->wsize = 1U << windowBits;
state->window = window;
state->wnext = 0;
@@ -246,7 +255,7 @@ out_func out;
void FAR *out_desc;
{
struct inflate_state FAR *state;
- unsigned char FAR *next; /* next input */
+ z_const unsigned char FAR *next; /* next input */
unsigned char FAR *put; /* next output */
unsigned have, left; /* available input and output */
unsigned long hold; /* bit buffer */
@@ -394,7 +403,6 @@ void FAR *out_desc;
PULLBYTE();
}
if (here.val < 16) {
- NEEDBITS(here.bits);
DROPBITS(here.bits);
state->lens[state->have++] = here.val;
}
diff --git a/src/3rdparty/zlib/inffast.c b/src/3rdparty/zlib/src/inffast.c
index 2f1d60b43b..0dbd1dbc09 100644
--- a/src/3rdparty/zlib/inffast.c
+++ b/src/3rdparty/zlib/src/inffast.c
@@ -1,5 +1,5 @@
/* inffast.c -- fast decoding
- * Copyright (C) 1995-2008, 2010 Mark Adler
+ * Copyright (C) 1995-2017 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -8,26 +8,9 @@
#include "inflate.h"
#include "inffast.h"
-#ifndef ASMINF
-
-/* Allow machine dependent optimization for post-increment or pre-increment.
- Based on testing to date,
- Pre-increment preferred for:
- - PowerPC G3 (Adler)
- - MIPS R5000 (Randers-Pehrson)
- Post-increment preferred for:
- - none
- No measurable difference:
- - Pentium III (Anderson)
- - M68060 (Nikl)
- */
-#ifdef POSTINC
-# define OFF 0
-# define PUP(a) *(a)++
+#ifdef ASMINF
+# pragma message("Assembler code may have bugs -- use at your own risk")
#else
-# define OFF 1
-# define PUP(a) *++(a)
-#endif
/*
Decode literal, length, and distance codes and write out the resulting
@@ -69,8 +52,8 @@ z_streamp strm;
unsigned start; /* inflate()'s starting value for strm->avail_out */
{
struct inflate_state FAR *state;
- unsigned char FAR *in; /* local strm->next_in */
- unsigned char FAR *last; /* while in < last, enough input available */
+ z_const unsigned char FAR *in; /* local strm->next_in */
+ z_const unsigned char FAR *last; /* have enough input while in < last */
unsigned char FAR *out; /* local strm->next_out */
unsigned char FAR *beg; /* inflate()'s initial strm->next_out */
unsigned char FAR *end; /* while out < end, enough space available */
@@ -96,9 +79,9 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
/* copy state to local variables */
state = (struct inflate_state FAR *)strm->state;
- in = strm->next_in - OFF;
+ in = strm->next_in;
last = in + (strm->avail_in - 5);
- out = strm->next_out - OFF;
+ out = strm->next_out;
beg = out - (start - strm->avail_out);
end = out + (strm->avail_out - 257);
#ifdef INFLATE_STRICT
@@ -119,9 +102,9 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
input data or output space */
do {
if (bits < 15) {
- hold += (unsigned long)(PUP(in)) << bits;
+ hold += (unsigned long)(*in++) << bits;
bits += 8;
- hold += (unsigned long)(PUP(in)) << bits;
+ hold += (unsigned long)(*in++) << bits;
bits += 8;
}
here = lcode[hold & lmask];
@@ -134,14 +117,14 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
"inflate: literal '%c'\n" :
"inflate: literal 0x%02x\n", here.val));
- PUP(out) = (unsigned char)(here.val);
+ *out++ = (unsigned char)(here.val);
}
else if (op & 16) { /* length base */
len = (unsigned)(here.val);
op &= 15; /* number of extra bits */
if (op) {
if (bits < op) {
- hold += (unsigned long)(PUP(in)) << bits;
+ hold += (unsigned long)(*in++) << bits;
bits += 8;
}
len += (unsigned)hold & ((1U << op) - 1);
@@ -150,9 +133,9 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
}
Tracevv((stderr, "inflate: length %u\n", len));
if (bits < 15) {
- hold += (unsigned long)(PUP(in)) << bits;
+ hold += (unsigned long)(*in++) << bits;
bits += 8;
- hold += (unsigned long)(PUP(in)) << bits;
+ hold += (unsigned long)(*in++) << bits;
bits += 8;
}
here = dcode[hold & dmask];
@@ -165,10 +148,10 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
dist = (unsigned)(here.val);
op &= 15; /* number of extra bits */
if (bits < op) {
- hold += (unsigned long)(PUP(in)) << bits;
+ hold += (unsigned long)(*in++) << bits;
bits += 8;
if (bits < op) {
- hold += (unsigned long)(PUP(in)) << bits;
+ hold += (unsigned long)(*in++) << bits;
bits += 8;
}
}
@@ -196,30 +179,30 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
if (len <= op - whave) {
do {
- PUP(out) = 0;
+ *out++ = 0;
} while (--len);
continue;
}
len -= op - whave;
do {
- PUP(out) = 0;
+ *out++ = 0;
} while (--op > whave);
if (op == 0) {
from = out - dist;
do {
- PUP(out) = PUP(from);
+ *out++ = *from++;
} while (--len);
continue;
}
#endif
}
- from = window - OFF;
+ from = window;
if (wnext == 0) { /* very common case */
from += wsize - op;
if (op < len) { /* some from window */
len -= op;
do {
- PUP(out) = PUP(from);
+ *out++ = *from++;
} while (--op);
from = out - dist; /* rest from output */
}
@@ -230,14 +213,14 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
if (op < len) { /* some from end of window */
len -= op;
do {
- PUP(out) = PUP(from);
+ *out++ = *from++;
} while (--op);
- from = window - OFF;
+ from = window;
if (wnext < len) { /* some from start of window */
op = wnext;
len -= op;
do {
- PUP(out) = PUP(from);
+ *out++ = *from++;
} while (--op);
from = out - dist; /* rest from output */
}
@@ -248,35 +231,35 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
if (op < len) { /* some from window */
len -= op;
do {
- PUP(out) = PUP(from);
+ *out++ = *from++;
} while (--op);
from = out - dist; /* rest from output */
}
}
while (len > 2) {
- PUP(out) = PUP(from);
- PUP(out) = PUP(from);
- PUP(out) = PUP(from);
+ *out++ = *from++;
+ *out++ = *from++;
+ *out++ = *from++;
len -= 3;
}
if (len) {
- PUP(out) = PUP(from);
+ *out++ = *from++;
if (len > 1)
- PUP(out) = PUP(from);
+ *out++ = *from++;
}
}
else {
from = out - dist; /* copy direct from output */
do { /* minimum length is three */
- PUP(out) = PUP(from);
- PUP(out) = PUP(from);
- PUP(out) = PUP(from);
+ *out++ = *from++;
+ *out++ = *from++;
+ *out++ = *from++;
len -= 3;
} while (len > 2);
if (len) {
- PUP(out) = PUP(from);
+ *out++ = *from++;
if (len > 1)
- PUP(out) = PUP(from);
+ *out++ = *from++;
}
}
}
@@ -313,8 +296,8 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
hold &= (1U << bits) - 1;
/* update state and return */
- strm->next_in = in + OFF;
- strm->next_out = out + OFF;
+ strm->next_in = in;
+ strm->next_out = out;
strm->avail_in = (unsigned)(in < last ? 5 + (last - in) : 5 - (in - last));
strm->avail_out = (unsigned)(out < end ?
257 + (end - out) : 257 - (out - end));
diff --git a/src/3rdparty/zlib/inffast.h b/src/3rdparty/zlib/src/inffast.h
index e5c1aa4ca8..e5c1aa4ca8 100644
--- a/src/3rdparty/zlib/inffast.h
+++ b/src/3rdparty/zlib/src/inffast.h
diff --git a/src/3rdparty/zlib/inffixed.h b/src/3rdparty/zlib/src/inffixed.h
index 75ed4b5978..d628327769 100644
--- a/src/3rdparty/zlib/inffixed.h
+++ b/src/3rdparty/zlib/src/inffixed.h
@@ -2,9 +2,9 @@
* Generated automatically by makefixed().
*/
- /* WARNING: this file should *not* be used by applications. It
- is part of the implementation of the compression library and
- is subject to change. Applications should only use zlib.h.
+ /* WARNING: this file should *not* be used by applications.
+ It is part of the implementation of this library and is
+ subject to change. Applications should only use zlib.h.
*/
static const code lenfix[512] = {
diff --git a/src/3rdparty/zlib/inflate.c b/src/3rdparty/zlib/src/inflate.c
index a8431abeac..ac333e8c2e 100644
--- a/src/3rdparty/zlib/inflate.c
+++ b/src/3rdparty/zlib/src/inflate.c
@@ -1,5 +1,5 @@
/* inflate.c -- zlib decompression
- * Copyright (C) 1995-2010 Mark Adler
+ * Copyright (C) 1995-2016 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -92,32 +92,46 @@
#endif
/* function prototypes */
+local int inflateStateCheck OF((z_streamp strm));
local void fixedtables OF((struct inflate_state FAR *state));
-local int updatewindow OF((z_streamp strm, unsigned out));
+local int updatewindow OF((z_streamp strm, const unsigned char FAR *end,
+ unsigned copy));
#ifdef BUILDFIXED
void makefixed OF((void));
#endif
-local unsigned syncsearch OF((unsigned FAR *have, unsigned char FAR *buf,
+local unsigned syncsearch OF((unsigned FAR *have, const unsigned char FAR *buf,
unsigned len));
-int ZEXPORT inflateReset(strm)
+local int inflateStateCheck(strm)
+z_streamp strm;
+{
+ struct inflate_state FAR *state;
+ if (strm == Z_NULL ||
+ strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0)
+ return 1;
+ state = (struct inflate_state FAR *)strm->state;
+ if (state == Z_NULL || state->strm != strm ||
+ state->mode < HEAD || state->mode > SYNC)
+ return 1;
+ return 0;
+}
+
+int ZEXPORT inflateResetKeep(strm)
z_streamp strm;
{
struct inflate_state FAR *state;
- if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+ if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
state = (struct inflate_state FAR *)strm->state;
strm->total_in = strm->total_out = state->total = 0;
strm->msg = Z_NULL;
- strm->adler = 1; /* to support ill-conceived Java test suite */
+ if (state->wrap) /* to support ill-conceived Java test suite */
+ strm->adler = state->wrap & 1;
state->mode = HEAD;
state->last = 0;
state->havedict = 0;
state->dmax = 32768U;
state->head = Z_NULL;
- state->wsize = 0;
- state->whave = 0;
- state->wnext = 0;
state->hold = 0;
state->bits = 0;
state->lencode = state->distcode = state->next = state->codes;
@@ -127,6 +141,19 @@ z_streamp strm;
return Z_OK;
}
+int ZEXPORT inflateReset(strm)
+z_streamp strm;
+{
+ struct inflate_state FAR *state;
+
+ if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+ state = (struct inflate_state FAR *)strm->state;
+ state->wsize = 0;
+ state->whave = 0;
+ state->wnext = 0;
+ return inflateResetKeep(strm);
+}
+
int ZEXPORT inflateReset2(strm, windowBits)
z_streamp strm;
int windowBits;
@@ -135,7 +162,7 @@ int windowBits;
struct inflate_state FAR *state;
/* get the state */
- if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+ if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
state = (struct inflate_state FAR *)strm->state;
/* extract wrap request from windowBits parameter */
@@ -144,7 +171,7 @@ int windowBits;
windowBits = -windowBits;
}
else {
- wrap = (windowBits >> 4) + 1;
+ wrap = (windowBits >> 4) + 5;
#ifdef GUNZIP
if (windowBits < 48)
windowBits &= 15;
@@ -180,16 +207,27 @@ int stream_size;
if (strm == Z_NULL) return Z_STREAM_ERROR;
strm->msg = Z_NULL; /* in case we return an error */
if (strm->zalloc == (alloc_func)0) {
+#ifdef Z_SOLO
+ return Z_STREAM_ERROR;
+#else
strm->zalloc = zcalloc;
strm->opaque = (voidpf)0;
+#endif
}
- if (strm->zfree == (free_func)0) strm->zfree = zcfree;
+ if (strm->zfree == (free_func)0)
+#ifdef Z_SOLO
+ return Z_STREAM_ERROR;
+#else
+ strm->zfree = zcfree;
+#endif
state = (struct inflate_state FAR *)
ZALLOC(strm, 1, sizeof(struct inflate_state));
if (state == Z_NULL) return Z_MEM_ERROR;
Tracev((stderr, "inflate: allocated\n"));
strm->state = (struct internal_state FAR *)state;
+ state->strm = strm;
state->window = Z_NULL;
+ state->mode = HEAD; /* to pass state test in inflateReset2() */
ret = inflateReset2(strm, windowBits);
if (ret != Z_OK) {
ZFREE(strm, state);
@@ -213,17 +251,17 @@ int value;
{
struct inflate_state FAR *state;
- if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+ if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
state = (struct inflate_state FAR *)strm->state;
if (bits < 0) {
state->hold = 0;
state->bits = 0;
return Z_OK;
}
- if (bits > 16 || state->bits + bits > 32) return Z_STREAM_ERROR;
+ if (bits > 16 || state->bits + (uInt)bits > 32) return Z_STREAM_ERROR;
value &= (1L << bits) - 1;
- state->hold += value << state->bits;
- state->bits += bits;
+ state->hold += (unsigned)value << state->bits;
+ state->bits += (uInt)bits;
return Z_OK;
}
@@ -321,8 +359,8 @@ void makefixed()
low = 0;
for (;;) {
if ((low % 7) == 0) printf("\n ");
- printf("{%u,%u,%d}", state.lencode[low].op, state.lencode[low].bits,
- state.lencode[low].val);
+ printf("{%u,%u,%d}", (low & 127) == 99 ? 64 : state.lencode[low].op,
+ state.lencode[low].bits, state.lencode[low].val);
if (++low == size) break;
putchar(',');
}
@@ -355,12 +393,13 @@ void makefixed()
output will fall in the output data, making match copies simpler and faster.
The advantage may be dependent on the size of the processor's data caches.
*/
-local int updatewindow(strm, out)
+local int updatewindow(strm, end, copy)
z_streamp strm;
-unsigned out;
+const Bytef *end;
+unsigned copy;
{
struct inflate_state FAR *state;
- unsigned copy, dist;
+ unsigned dist;
state = (struct inflate_state FAR *)strm->state;
@@ -380,19 +419,18 @@ unsigned out;
}
/* copy state->wsize or less output bytes into the circular window */
- copy = out - strm->avail_out;
if (copy >= state->wsize) {
- zmemcpy(state->window, strm->next_out - state->wsize, state->wsize);
+ zmemcpy(state->window, end - state->wsize, state->wsize);
state->wnext = 0;
state->whave = state->wsize;
}
else {
dist = state->wsize - state->wnext;
if (dist > copy) dist = copy;
- zmemcpy(state->window + state->wnext, strm->next_out - copy, dist);
+ zmemcpy(state->window + state->wnext, end - copy, dist);
copy -= dist;
if (copy) {
- zmemcpy(state->window, strm->next_out - copy, copy);
+ zmemcpy(state->window, end - copy, copy);
state->wnext = copy;
state->whave = state->wsize;
}
@@ -499,11 +537,6 @@ unsigned out;
bits -= bits & 7; \
} while (0)
-/* Reverse the bytes in a 32-bit value */
-#define REVERSE(q) \
- ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \
- (((q) & 0xff00) << 8) + (((q) & 0xff) << 24))
-
/*
inflate() uses a state machine to process as much input data and generate as
much output data as possible before returning. The state machine is
@@ -591,7 +624,7 @@ z_streamp strm;
int flush;
{
struct inflate_state FAR *state;
- unsigned char FAR *next; /* next input */
+ z_const unsigned char FAR *next; /* next input */
unsigned char FAR *put; /* next output */
unsigned have, left; /* available input and output */
unsigned long hold; /* bit buffer */
@@ -609,7 +642,7 @@ int flush;
static const unsigned short order[19] = /* permutation of code lengths */
{16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
- if (strm == Z_NULL || strm->state == Z_NULL || strm->next_out == Z_NULL ||
+ if (inflateStateCheck(strm) || strm->next_out == Z_NULL ||
(strm->next_in == Z_NULL && strm->avail_in != 0))
return Z_STREAM_ERROR;
@@ -629,6 +662,8 @@ int flush;
NEEDBITS(16);
#ifdef GUNZIP
if ((state->wrap & 2) && hold == 0x8b1f) { /* gzip header */
+ if (state->wbits == 0)
+ state->wbits = 15;
state->check = crc32(0L, Z_NULL, 0);
CRC2(state->check, hold);
INITBITS();
@@ -656,7 +691,7 @@ int flush;
len = BITS(4) + 8;
if (state->wbits == 0)
state->wbits = len;
- else if (len > state->wbits) {
+ if (len > 15 || len > state->wbits) {
strm->msg = (char *)"invalid window size";
state->mode = BAD;
break;
@@ -683,14 +718,16 @@ int flush;
}
if (state->head != Z_NULL)
state->head->text = (int)((hold >> 8) & 1);
- if (state->flags & 0x0200) CRC2(state->check, hold);
+ if ((state->flags & 0x0200) && (state->wrap & 4))
+ CRC2(state->check, hold);
INITBITS();
state->mode = TIME;
case TIME:
NEEDBITS(32);
if (state->head != Z_NULL)
state->head->time = hold;
- if (state->flags & 0x0200) CRC4(state->check, hold);
+ if ((state->flags & 0x0200) && (state->wrap & 4))
+ CRC4(state->check, hold);
INITBITS();
state->mode = OS;
case OS:
@@ -699,7 +736,8 @@ int flush;
state->head->xflags = (int)(hold & 0xff);
state->head->os = (int)(hold >> 8);
}
- if (state->flags & 0x0200) CRC2(state->check, hold);
+ if ((state->flags & 0x0200) && (state->wrap & 4))
+ CRC2(state->check, hold);
INITBITS();
state->mode = EXLEN;
case EXLEN:
@@ -708,7 +746,8 @@ int flush;
state->length = (unsigned)(hold);
if (state->head != Z_NULL)
state->head->extra_len = (unsigned)hold;
- if (state->flags & 0x0200) CRC2(state->check, hold);
+ if ((state->flags & 0x0200) && (state->wrap & 4))
+ CRC2(state->check, hold);
INITBITS();
}
else if (state->head != Z_NULL)
@@ -726,7 +765,7 @@ int flush;
len + copy > state->head->extra_max ?
state->head->extra_max - len : copy);
}
- if (state->flags & 0x0200)
+ if ((state->flags & 0x0200) && (state->wrap & 4))
state->check = crc32(state->check, next, copy);
have -= copy;
next += copy;
@@ -745,9 +784,9 @@ int flush;
if (state->head != Z_NULL &&
state->head->name != Z_NULL &&
state->length < state->head->name_max)
- state->head->name[state->length++] = len;
+ state->head->name[state->length++] = (Bytef)len;
} while (len && copy < have);
- if (state->flags & 0x0200)
+ if ((state->flags & 0x0200) && (state->wrap & 4))
state->check = crc32(state->check, next, copy);
have -= copy;
next += copy;
@@ -766,9 +805,9 @@ int flush;
if (state->head != Z_NULL &&
state->head->comment != Z_NULL &&
state->length < state->head->comm_max)
- state->head->comment[state->length++] = len;
+ state->head->comment[state->length++] = (Bytef)len;
} while (len && copy < have);
- if (state->flags & 0x0200)
+ if ((state->flags & 0x0200) && (state->wrap & 4))
state->check = crc32(state->check, next, copy);
have -= copy;
next += copy;
@@ -780,7 +819,7 @@ int flush;
case HCRC:
if (state->flags & 0x0200) {
NEEDBITS(16);
- if (hold != (state->check & 0xffff)) {
+ if ((state->wrap & 4) && hold != (state->check & 0xffff)) {
strm->msg = (char *)"header crc mismatch";
state->mode = BAD;
break;
@@ -797,7 +836,7 @@ int flush;
#endif
case DICTID:
NEEDBITS(32);
- strm->adler = state->check = REVERSE(hold);
+ strm->adler = state->check = ZSWAP32(hold);
INITBITS();
state->mode = DICT;
case DICT:
@@ -905,7 +944,7 @@ int flush;
while (state->have < 19)
state->lens[order[state->have++]] = 0;
state->next = state->codes;
- state->lencode = (code const FAR *)(state->next);
+ state->lencode = (const code FAR *)(state->next);
state->lenbits = 7;
ret = inflate_table(CODES, state->lens, 19, &(state->next),
&(state->lenbits), state->work);
@@ -925,7 +964,6 @@ int flush;
PULLBYTE();
}
if (here.val < 16) {
- NEEDBITS(here.bits);
DROPBITS(here.bits);
state->lens[state->have++] = here.val;
}
@@ -980,7 +1018,7 @@ int flush;
values here (9 and 6) without reading the comments in inftrees.h
concerning the ENOUGH constants, which depend on those values */
state->next = state->codes;
- state->lencode = (code const FAR *)(state->next);
+ state->lencode = (const code FAR *)(state->next);
state->lenbits = 9;
ret = inflate_table(LENS, state->lens, state->nlen, &(state->next),
&(state->lenbits), state->work);
@@ -989,7 +1027,7 @@ int flush;
state->mode = BAD;
break;
}
- state->distcode = (code const FAR *)(state->next);
+ state->distcode = (const code FAR *)(state->next);
state->distbits = 6;
ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist,
&(state->next), &(state->distbits), state->work);
@@ -1162,15 +1200,15 @@ int flush;
out -= left;
strm->total_out += out;
state->total += out;
- if (out)
+ if ((state->wrap & 4) && out)
strm->adler = state->check =
UPDATE(state->check, put - out, out);
out = left;
- if ((
+ if ((state->wrap & 4) && (
#ifdef GUNZIP
state->flags ? hold :
#endif
- REVERSE(hold)) != state->check) {
+ ZSWAP32(hold)) != state->check) {
strm->msg = (char *)"incorrect data check";
state->mode = BAD;
break;
@@ -1214,8 +1252,9 @@ int flush;
*/
inf_leave:
RESTORE();
- if (state->wsize || (state->mode < CHECK && out != strm->avail_out))
- if (updatewindow(strm, out)) {
+ if (state->wsize || (out != strm->avail_out && state->mode < BAD &&
+ (state->mode < CHECK || flush != Z_FINISH)))
+ if (updatewindow(strm, strm->next_out, out - strm->avail_out)) {
state->mode = MEM;
return Z_MEM_ERROR;
}
@@ -1224,10 +1263,10 @@ int flush;
strm->total_in += in;
strm->total_out += out;
state->total += out;
- if (state->wrap && out)
+ if ((state->wrap & 4) && out)
strm->adler = state->check =
UPDATE(state->check, strm->next_out - out, out);
- strm->data_type = state->bits + (state->last ? 64 : 0) +
+ strm->data_type = (int)state->bits + (state->last ? 64 : 0) +
(state->mode == TYPE ? 128 : 0) +
(state->mode == LEN_ || state->mode == COPY_ ? 256 : 0);
if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK)
@@ -1239,7 +1278,7 @@ int ZEXPORT inflateEnd(strm)
z_streamp strm;
{
struct inflate_state FAR *state;
- if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0)
+ if (inflateStateCheck(strm))
return Z_STREAM_ERROR;
state = (struct inflate_state FAR *)strm->state;
if (state->window != Z_NULL) ZFREE(strm, state->window);
@@ -1249,43 +1288,59 @@ z_streamp strm;
return Z_OK;
}
+int ZEXPORT inflateGetDictionary(strm, dictionary, dictLength)
+z_streamp strm;
+Bytef *dictionary;
+uInt *dictLength;
+{
+ struct inflate_state FAR *state;
+
+ /* check state */
+ if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+ state = (struct inflate_state FAR *)strm->state;
+
+ /* copy dictionary */
+ if (state->whave && dictionary != Z_NULL) {
+ zmemcpy(dictionary, state->window + state->wnext,
+ state->whave - state->wnext);
+ zmemcpy(dictionary + state->whave - state->wnext,
+ state->window, state->wnext);
+ }
+ if (dictLength != Z_NULL)
+ *dictLength = state->whave;
+ return Z_OK;
+}
+
int ZEXPORT inflateSetDictionary(strm, dictionary, dictLength)
z_streamp strm;
const Bytef *dictionary;
uInt dictLength;
{
struct inflate_state FAR *state;
- unsigned long id;
+ unsigned long dictid;
+ int ret;
/* check state */
- if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+ if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
state = (struct inflate_state FAR *)strm->state;
if (state->wrap != 0 && state->mode != DICT)
return Z_STREAM_ERROR;
- /* check for correct dictionary id */
+ /* check for correct dictionary identifier */
if (state->mode == DICT) {
- id = adler32(0L, Z_NULL, 0);
- id = adler32(id, dictionary, dictLength);
- if (id != state->check)
+ dictid = adler32(0L, Z_NULL, 0);
+ dictid = adler32(dictid, dictionary, dictLength);
+ if (dictid != state->check)
return Z_DATA_ERROR;
}
- /* copy dictionary to window */
- if (updatewindow(strm, strm->avail_out)) {
+ /* copy dictionary to window using updatewindow(), which will amend the
+ existing dictionary if appropriate */
+ ret = updatewindow(strm, dictionary + dictLength, dictLength);
+ if (ret) {
state->mode = MEM;
return Z_MEM_ERROR;
}
- if (dictLength > state->wsize) {
- zmemcpy(state->window, dictionary + dictLength - state->wsize,
- state->wsize);
- state->whave = state->wsize;
- }
- else {
- zmemcpy(state->window + state->wsize - dictLength, dictionary,
- dictLength);
- state->whave = dictLength;
- }
state->havedict = 1;
Tracev((stderr, "inflate: dictionary set\n"));
return Z_OK;
@@ -1298,7 +1353,7 @@ gz_headerp head;
struct inflate_state FAR *state;
/* check state */
- if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+ if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
state = (struct inflate_state FAR *)strm->state;
if ((state->wrap & 2) == 0) return Z_STREAM_ERROR;
@@ -1321,7 +1376,7 @@ gz_headerp head;
*/
local unsigned syncsearch(have, buf, len)
unsigned FAR *have;
-unsigned char FAR *buf;
+const unsigned char FAR *buf;
unsigned len;
{
unsigned got;
@@ -1351,7 +1406,7 @@ z_streamp strm;
struct inflate_state FAR *state;
/* check parameters */
- if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+ if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
state = (struct inflate_state FAR *)strm->state;
if (strm->avail_in == 0 && state->bits < 8) return Z_BUF_ERROR;
@@ -1398,7 +1453,7 @@ z_streamp strm;
{
struct inflate_state FAR *state;
- if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+ if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
state = (struct inflate_state FAR *)strm->state;
return state->mode == STORED && state->bits == 0;
}
@@ -1413,8 +1468,7 @@ z_streamp source;
unsigned wsize;
/* check input */
- if (dest == Z_NULL || source == Z_NULL || source->state == Z_NULL ||
- source->zalloc == (alloc_func)0 || source->zfree == (free_func)0)
+ if (inflateStateCheck(source) || dest == Z_NULL)
return Z_STREAM_ERROR;
state = (struct inflate_state FAR *)source->state;
@@ -1433,8 +1487,9 @@ z_streamp source;
}
/* copy state */
- zmemcpy(dest, source, sizeof(z_stream));
- zmemcpy(copy, state, sizeof(struct inflate_state));
+ zmemcpy((voidpf)dest, (voidpf)source, sizeof(z_stream));
+ zmemcpy((voidpf)copy, (voidpf)state, sizeof(struct inflate_state));
+ copy->strm = dest;
if (state->lencode >= state->codes &&
state->lencode <= state->codes + ENOUGH - 1) {
copy->lencode = copy->codes + (state->lencode - state->codes);
@@ -1456,25 +1511,51 @@ int subvert;
{
struct inflate_state FAR *state;
- if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+ if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
state = (struct inflate_state FAR *)strm->state;
- state->sane = !subvert;
#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+ state->sane = !subvert;
return Z_OK;
#else
+ (void)subvert;
state->sane = 1;
return Z_DATA_ERROR;
#endif
}
+int ZEXPORT inflateValidate(strm, check)
+z_streamp strm;
+int check;
+{
+ struct inflate_state FAR *state;
+
+ if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+ state = (struct inflate_state FAR *)strm->state;
+ if (check)
+ state->wrap |= 4;
+ else
+ state->wrap &= ~4;
+ return Z_OK;
+}
+
long ZEXPORT inflateMark(strm)
z_streamp strm;
{
struct inflate_state FAR *state;
- if (strm == Z_NULL || strm->state == Z_NULL) return -1L << 16;
+ if (inflateStateCheck(strm))
+ return -(1L << 16);
state = (struct inflate_state FAR *)strm->state;
- return ((long)(state->back) << 16) +
+ return (long)(((unsigned long)((long)state->back)) << 16) +
(state->mode == COPY ? state->length :
(state->mode == MATCH ? state->was - state->length : 0));
}
+
+unsigned long ZEXPORT inflateCodesUsed(strm)
+z_streamp strm;
+{
+ struct inflate_state FAR *state;
+ if (inflateStateCheck(strm)) return (unsigned long)-1;
+ state = (struct inflate_state FAR *)strm->state;
+ return (unsigned long)(state->next - state->codes);
+}
diff --git a/src/3rdparty/zlib/inflate.h b/src/3rdparty/zlib/src/inflate.h
index 95f4986d40..a46cce6b6d 100644
--- a/src/3rdparty/zlib/inflate.h
+++ b/src/3rdparty/zlib/src/inflate.h
@@ -1,5 +1,5 @@
/* inflate.h -- internal inflate state definition
- * Copyright (C) 1995-2009 Mark Adler
+ * Copyright (C) 1995-2016 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -18,7 +18,7 @@
/* Possible inflate modes between inflate() calls */
typedef enum {
- HEAD, /* i: waiting for magic header */
+ HEAD = 16180, /* i: waiting for magic header */
FLAGS, /* i: waiting for method and flags (gzip) */
TIME, /* i: waiting for modification time (gzip) */
OS, /* i: waiting for extra flags and operating system (gzip) */
@@ -77,11 +77,14 @@ typedef enum {
CHECK -> LENGTH -> DONE
*/
-/* state maintained between inflate() calls. Approximately 10K bytes. */
+/* State maintained between inflate() calls -- approximately 7K bytes, not
+ including the allocated sliding window, which is up to 32K bytes. */
struct inflate_state {
+ z_streamp strm; /* pointer back to this zlib stream */
inflate_mode mode; /* current inflate mode */
int last; /* true if processing last block */
- int wrap; /* bit 0 true for zlib, bit 1 true for gzip */
+ int wrap; /* bit 0 true for zlib, bit 1 true for gzip,
+ bit 2 true to validate check value */
int havedict; /* true if dictionary provided */
int flags; /* gzip header method and flags (0 if zlib) */
unsigned dmax; /* zlib header max distance (INFLATE_STRICT) */
diff --git a/src/3rdparty/zlib/inftrees.c b/src/3rdparty/zlib/src/inftrees.c
index 11e9c52acc..2ea08fc13e 100644
--- a/src/3rdparty/zlib/inftrees.c
+++ b/src/3rdparty/zlib/src/inftrees.c
@@ -1,5 +1,5 @@
/* inftrees.c -- generate Huffman trees for efficient decoding
- * Copyright (C) 1995-2010 Mark Adler
+ * Copyright (C) 1995-2017 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -9,7 +9,7 @@
#define MAXBITS 15
const char inflate_copyright[] =
- " inflate 1.2.5 Copyright 1995-2010 Mark Adler ";
+ " inflate 1.2.11 Copyright 1995-2017 Mark Adler ";
/*
If you use the zlib library in a product, an acknowledgment is welcome
in the documentation of your product. If for some reason you cannot
@@ -54,7 +54,7 @@ unsigned short FAR *work;
code FAR *next; /* next available space in table */
const unsigned short FAR *base; /* base value table to use */
const unsigned short FAR *extra; /* extra bits table to use */
- int end; /* use base and extra for symbol > end */
+ unsigned match; /* use base and extra for symbol >= match */
unsigned short count[MAXBITS+1]; /* number of codes of each length */
unsigned short offs[MAXBITS+1]; /* offsets in table for each length */
static const unsigned short lbase[31] = { /* Length codes 257..285 base */
@@ -62,7 +62,7 @@ unsigned short FAR *work;
35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
static const unsigned short lext[31] = { /* Length codes 257..285 extra */
16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
- 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 73, 195};
+ 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 77, 202};
static const unsigned short dbase[32] = { /* Distance codes 0..29 base */
1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
@@ -181,19 +181,17 @@ unsigned short FAR *work;
switch (type) {
case CODES:
base = extra = work; /* dummy value--not used */
- end = 19;
+ match = 20;
break;
case LENS:
base = lbase;
- base -= 257;
extra = lext;
- extra -= 257;
- end = 256;
+ match = 257;
break;
- default: /* DISTS */
+ default: /* DISTS */
base = dbase;
extra = dext;
- end = -1;
+ match = 0;
}
/* initialize state for loop */
@@ -208,21 +206,21 @@ unsigned short FAR *work;
mask = used - 1; /* mask for comparing low */
/* check available table space */
- if ((type == LENS && used >= ENOUGH_LENS) ||
- (type == DISTS && used >= ENOUGH_DISTS))
+ if ((type == LENS && used > ENOUGH_LENS) ||
+ (type == DISTS && used > ENOUGH_DISTS))
return 1;
/* process all codes and make table entries */
for (;;) {
/* create table entry */
here.bits = (unsigned char)(len - drop);
- if ((int)(work[sym]) < end) {
+ if (work[sym] + 1U < match) {
here.op = (unsigned char)0;
here.val = work[sym];
}
- else if ((int)(work[sym]) > end) {
- here.op = (unsigned char)(extra[work[sym]]);
- here.val = base[work[sym]];
+ else if (work[sym] >= match) {
+ here.op = (unsigned char)(extra[work[sym] - match]);
+ here.val = base[work[sym] - match];
}
else {
here.op = (unsigned char)(32 + 64); /* end of block */
@@ -277,8 +275,8 @@ unsigned short FAR *work;
/* check for enough space */
used += 1U << curr;
- if ((type == LENS && used >= ENOUGH_LENS) ||
- (type == DISTS && used >= ENOUGH_DISTS))
+ if ((type == LENS && used > ENOUGH_LENS) ||
+ (type == DISTS && used > ENOUGH_DISTS))
return 1;
/* point entry in root table to sub-table */
@@ -289,38 +287,14 @@ unsigned short FAR *work;
}
}
- /*
- Fill in rest of table for incomplete codes. This loop is similar to the
- loop above in incrementing huff for table indices. It is assumed that
- len is equal to curr + drop, so there is no loop needed to increment
- through high index bits. When the current sub-table is filled, the loop
- drops back to the root table to fill in any remaining entries there.
- */
- here.op = (unsigned char)64; /* invalid code marker */
- here.bits = (unsigned char)(len - drop);
- here.val = (unsigned short)0;
- while (huff != 0) {
- /* when done with sub-table, drop back to root table */
- if (drop != 0 && (huff & mask) != low) {
- drop = 0;
- len = root;
- next = *table;
- here.bits = (unsigned char)len;
- }
-
- /* put invalid code marker in table */
- next[huff >> drop] = here;
-
- /* backwards increment the len-bit code huff */
- incr = 1U << (len - 1);
- while (huff & incr)
- incr >>= 1;
- if (incr != 0) {
- huff &= incr - 1;
- huff += incr;
- }
- else
- huff = 0;
+ /* fill in remaining table entry if code is incomplete (guaranteed to have
+ at most one remaining entry, since if the code is incomplete, the
+ maximum code length that was allowed to get this far is one bit) */
+ if (huff != 0) {
+ here.op = (unsigned char)64; /* invalid code marker */
+ here.bits = (unsigned char)(len - drop);
+ here.val = (unsigned short)0;
+ next[huff] = here;
}
/* set return parameters */
diff --git a/src/3rdparty/zlib/inftrees.h b/src/3rdparty/zlib/src/inftrees.h
index baa53a0b1a..baa53a0b1a 100644
--- a/src/3rdparty/zlib/inftrees.h
+++ b/src/3rdparty/zlib/src/inftrees.h
diff --git a/src/3rdparty/zlib/trees.c b/src/3rdparty/zlib/src/trees.c
index 56e9bb1c11..50cf4b4571 100644
--- a/src/3rdparty/zlib/trees.c
+++ b/src/3rdparty/zlib/src/trees.c
@@ -1,5 +1,5 @@
/* trees.c -- output deflated data using Huffman coding
- * Copyright (C) 1995-2010 Jean-loup Gailly
+ * Copyright (C) 1995-2017 Jean-loup Gailly
* detect_data_type() function provided freely by Cosmin Truta, 2006
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -36,7 +36,7 @@
#include "deflate.h"
-#ifdef DEBUG
+#ifdef ZLIB_DEBUG
# include <ctype.h>
#endif
@@ -74,11 +74,6 @@ local const uch bl_order[BL_CODES]
* probability, to avoid transmitting the lengths for unused bit length codes.
*/
-#define Buf_size (8 * 2*sizeof(char))
-/* Number of bits used within bi_buf. (bi_buf might be implemented on
- * more than 16 bits on some systems.)
- */
-
/* ===========================================================================
* Local data. These are initialized only once.
*/
@@ -127,13 +122,13 @@ struct static_tree_desc_s {
int max_length; /* max bit length for the codes */
};
-local static_tree_desc static_l_desc =
+local const static_tree_desc static_l_desc =
{static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS};
-local static_tree_desc static_d_desc =
+local const static_tree_desc static_d_desc =
{static_dtree, extra_dbits, 0, D_CODES, MAX_BITS};
-local static_tree_desc static_bl_desc =
+local const static_tree_desc static_bl_desc =
{(const ct_data *)0, extra_blbits, 0, BL_CODES, MAX_BL_BITS};
/* ===========================================================================
@@ -151,24 +146,22 @@ local void send_tree OF((deflate_state *s, ct_data *tree, int max_code));
local int build_bl_tree OF((deflate_state *s));
local void send_all_trees OF((deflate_state *s, int lcodes, int dcodes,
int blcodes));
-local void compress_block OF((deflate_state *s, ct_data *ltree,
- ct_data *dtree));
+local void compress_block OF((deflate_state *s, const ct_data *ltree,
+ const ct_data *dtree));
local int detect_data_type OF((deflate_state *s));
local unsigned bi_reverse OF((unsigned value, int length));
local void bi_windup OF((deflate_state *s));
local void bi_flush OF((deflate_state *s));
-local void copy_block OF((deflate_state *s, charf *buf, unsigned len,
- int header));
#ifdef GEN_TREES_H
local void gen_trees_header OF((void));
#endif
-#ifndef DEBUG
+#ifndef ZLIB_DEBUG
# define send_code(s, c, tree) send_bits(s, tree[c].Code, tree[c].Len)
/* Send a code of the given tree. c and tree must not have side effects */
-#else /* DEBUG */
+#else /* !ZLIB_DEBUG */
# define send_code(s, c, tree) \
{ if (z_verbose>2) fprintf(stderr,"\ncd %3d ",(c)); \
send_bits(s, tree[c].Code, tree[c].Len); }
@@ -187,7 +180,7 @@ local void gen_trees_header OF((void));
* Send a value on a given number of bits.
* IN assertion: length <= 16 and value fits in length bits.
*/
-#ifdef DEBUG
+#ifdef ZLIB_DEBUG
local void send_bits OF((deflate_state *s, int value, int length));
local void send_bits(s, value, length)
@@ -213,12 +206,12 @@ local void send_bits(s, value, length)
s->bi_valid += length;
}
}
-#else /* !DEBUG */
+#else /* !ZLIB_DEBUG */
#define send_bits(s, value, length) \
{ int len = length;\
if (s->bi_valid > (int)Buf_size - len) {\
- int val = value;\
+ int val = (int)value;\
s->bi_buf |= (ush)val << s->bi_valid;\
put_short(s, s->bi_buf);\
s->bi_buf = (ush)val >> (Buf_size - s->bi_valid);\
@@ -228,7 +221,7 @@ local void send_bits(s, value, length)
s->bi_valid += len;\
}\
}
-#endif /* DEBUG */
+#endif /* ZLIB_DEBUG */
/* the arguments must not have side effects */
@@ -322,7 +315,7 @@ local void tr_static_init()
* Genererate the file trees.h describing the static trees.
*/
#ifdef GEN_TREES_H
-# ifndef DEBUG
+# ifndef ZLIB_DEBUG
# include <stdio.h>
# endif
@@ -399,8 +392,7 @@ void ZLIB_INTERNAL _tr_init(s)
s->bi_buf = 0;
s->bi_valid = 0;
- s->last_eob_len = 8; /* enough lookahead for inflate */
-#ifdef DEBUG
+#ifdef ZLIB_DEBUG
s->compressed_len = 0L;
s->bits_sent = 0L;
#endif
@@ -528,12 +520,12 @@ local void gen_bitlen(s, desc)
xbits = 0;
if (n >= base) xbits = extra[n-base];
f = tree[n].Freq;
- s->opt_len += (ulg)f * (bits + xbits);
- if (stree) s->static_len += (ulg)f * (stree[n].Len + xbits);
+ s->opt_len += (ulg)f * (unsigned)(bits + xbits);
+ if (stree) s->static_len += (ulg)f * (unsigned)(stree[n].Len + xbits);
}
if (overflow == 0) return;
- Trace((stderr,"\nbit length overflow\n"));
+ Tracev((stderr,"\nbit length overflow\n"));
/* This happens for example on obj2 and pic of the Calgary corpus */
/* Find the first bit length which could increase: */
@@ -560,9 +552,8 @@ local void gen_bitlen(s, desc)
m = s->heap[--h];
if (m > max_code) continue;
if ((unsigned) tree[m].Len != (unsigned) bits) {
- Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits));
- s->opt_len += ((long)bits - (long)tree[m].Len)
- *(long)tree[m].Freq;
+ Tracev((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits));
+ s->opt_len += ((ulg)bits - tree[m].Len) * tree[m].Freq;
tree[m].Len = (ush)bits;
}
n--;
@@ -584,7 +575,7 @@ local void gen_codes (tree, max_code, bl_count)
ushf *bl_count; /* number of codes at each bit length */
{
ush next_code[MAX_BITS+1]; /* next code value for each bit length */
- ush code = 0; /* running code value */
+ unsigned code = 0; /* running code value */
int bits; /* bit index */
int n; /* code index */
@@ -592,7 +583,8 @@ local void gen_codes (tree, max_code, bl_count)
* without bit reversal.
*/
for (bits = 1; bits <= MAX_BITS; bits++) {
- next_code[bits] = code = (code + bl_count[bits-1]) << 1;
+ code = (code + bl_count[bits-1]) << 1;
+ next_code[bits] = (ush)code;
}
/* Check that the bit counts in bl_count are consistent. The last code
* must be all ones.
@@ -605,7 +597,7 @@ local void gen_codes (tree, max_code, bl_count)
int len = tree[n].Len;
if (len == 0) continue;
/* Now reverse the bits */
- tree[n].Code = bi_reverse(next_code[len]++, len);
+ tree[n].Code = (ush)bi_reverse(next_code[len]++, len);
Tracecv(tree != static_ltree, (stderr,"\nn %3d %c l %2d c %4x (%x) ",
n, (isgraph(n) ? n : ' '), len, tree[n].Code, next_code[len]-1));
@@ -827,7 +819,7 @@ local int build_bl_tree(s)
if (s->bl_tree[bl_order[max_blindex]].Len != 0) break;
}
/* Update opt_len to include the bit length tree and counts */
- s->opt_len += 3*(max_blindex+1) + 5+5+4;
+ s->opt_len += 3*((ulg)max_blindex+1) + 5+5+4;
Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld",
s->opt_len, s->static_len));
@@ -875,52 +867,46 @@ void ZLIB_INTERNAL _tr_stored_block(s, buf, stored_len, last)
int last; /* one if this is the last block for a file */
{
send_bits(s, (STORED_BLOCK<<1)+last, 3); /* send block type */
-#ifdef DEBUG
+ bi_windup(s); /* align on byte boundary */
+ put_short(s, (ush)stored_len);
+ put_short(s, (ush)~stored_len);
+ zmemcpy(s->pending_buf + s->pending, (Bytef *)buf, stored_len);
+ s->pending += stored_len;
+#ifdef ZLIB_DEBUG
s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L;
s->compressed_len += (stored_len + 4) << 3;
+ s->bits_sent += 2*16;
+ s->bits_sent += stored_len<<3;
#endif
- copy_block(s, buf, (unsigned)stored_len, 1); /* with header */
+}
+
+/* ===========================================================================
+ * Flush the bits in the bit buffer to pending output (leaves at most 7 bits)
+ */
+void ZLIB_INTERNAL _tr_flush_bits(s)
+ deflate_state *s;
+{
+ bi_flush(s);
}
/* ===========================================================================
* Send one empty static block to give enough lookahead for inflate.
* This takes 10 bits, of which 7 may remain in the bit buffer.
- * The current inflate code requires 9 bits of lookahead. If the
- * last two codes for the previous block (real code plus EOB) were coded
- * on 5 bits or less, inflate may have only 5+3 bits of lookahead to decode
- * the last real code. In this case we send two empty static blocks instead
- * of one. (There are no problems if the previous block is stored or fixed.)
- * To simplify the code, we assume the worst case of last real code encoded
- * on one bit only.
*/
void ZLIB_INTERNAL _tr_align(s)
deflate_state *s;
{
send_bits(s, STATIC_TREES<<1, 3);
send_code(s, END_BLOCK, static_ltree);
-#ifdef DEBUG
+#ifdef ZLIB_DEBUG
s->compressed_len += 10L; /* 3 for block type, 7 for EOB */
#endif
bi_flush(s);
- /* Of the 10 bits for the empty block, we have already sent
- * (10 - bi_valid) bits. The lookahead for the last real code (before
- * the EOB of the previous block) was thus at least one plus the length
- * of the EOB plus what we have just sent of the empty static block.
- */
- if (1 + s->last_eob_len + 10 - s->bi_valid < 9) {
- send_bits(s, STATIC_TREES<<1, 3);
- send_code(s, END_BLOCK, static_ltree);
-#ifdef DEBUG
- s->compressed_len += 10L;
-#endif
- bi_flush(s);
- }
- s->last_eob_len = 7;
}
/* ===========================================================================
* Determine the best encoding for the current block: dynamic trees, static
- * trees or store, and output the encoded block to the zip file.
+ * trees or store, and write out the encoded block.
*/
void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last)
deflate_state *s;
@@ -990,16 +976,18 @@ void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last)
} else if (s->strategy == Z_FIXED || static_lenb == opt_lenb) {
#endif
send_bits(s, (STATIC_TREES<<1)+last, 3);
- compress_block(s, (ct_data *)static_ltree, (ct_data *)static_dtree);
-#ifdef DEBUG
+ compress_block(s, (const ct_data *)static_ltree,
+ (const ct_data *)static_dtree);
+#ifdef ZLIB_DEBUG
s->compressed_len += 3 + s->static_len;
#endif
} else {
send_bits(s, (DYN_TREES<<1)+last, 3);
send_all_trees(s, s->l_desc.max_code+1, s->d_desc.max_code+1,
max_blindex+1);
- compress_block(s, (ct_data *)s->dyn_ltree, (ct_data *)s->dyn_dtree);
-#ifdef DEBUG
+ compress_block(s, (const ct_data *)s->dyn_ltree,
+ (const ct_data *)s->dyn_dtree);
+#ifdef ZLIB_DEBUG
s->compressed_len += 3 + s->opt_len;
#endif
}
@@ -1011,7 +999,7 @@ void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last)
if (last) {
bi_windup(s);
-#ifdef DEBUG
+#ifdef ZLIB_DEBUG
s->compressed_len += 7; /* align on byte boundary */
#endif
}
@@ -1075,8 +1063,8 @@ int ZLIB_INTERNAL _tr_tally (s, dist, lc)
*/
local void compress_block(s, ltree, dtree)
deflate_state *s;
- ct_data *ltree; /* literal tree */
- ct_data *dtree; /* distance tree */
+ const ct_data *ltree; /* literal tree */
+ const ct_data *dtree; /* distance tree */
{
unsigned dist; /* distance of matched string */
int lc; /* match length or unmatched char (if dist == 0) */
@@ -1106,7 +1094,7 @@ local void compress_block(s, ltree, dtree)
send_code(s, code, dtree); /* send the distance code */
extra = extra_dbits[code];
if (extra != 0) {
- dist -= base_dist[code];
+ dist -= (unsigned)base_dist[code];
send_bits(s, dist, extra); /* send the extra distance bits */
}
} /* literal or match pair ? */
@@ -1118,7 +1106,6 @@ local void compress_block(s, ltree, dtree)
} while (lx < s->last_lit);
send_code(s, END_BLOCK, ltree);
- s->last_eob_len = ltree[END_BLOCK].Len;
}
/* ===========================================================================
@@ -1210,35 +1197,7 @@ local void bi_windup(s)
}
s->bi_buf = 0;
s->bi_valid = 0;
-#ifdef DEBUG
+#ifdef ZLIB_DEBUG
s->bits_sent = (s->bits_sent+7) & ~7;
#endif
}
-
-/* ===========================================================================
- * Copy a stored block, storing first the length and its
- * one's complement if requested.
- */
-local void copy_block(s, buf, len, header)
- deflate_state *s;
- charf *buf; /* the input data */
- unsigned len; /* its length */
- int header; /* true if block header must be written */
-{
- bi_windup(s); /* align on byte boundary */
- s->last_eob_len = 8; /* enough lookahead for inflate */
-
- if (header) {
- put_short(s, (ush)len);
- put_short(s, (ush)~len);
-#ifdef DEBUG
- s->bits_sent += 2*16;
-#endif
- }
-#ifdef DEBUG
- s->bits_sent += (ulg)len<<3;
-#endif
- while (len--) {
- put_byte(s, *buf++);
- }
-}
diff --git a/src/3rdparty/zlib/trees.h b/src/3rdparty/zlib/src/trees.h
index d35639d82a..d35639d82a 100644
--- a/src/3rdparty/zlib/trees.h
+++ b/src/3rdparty/zlib/src/trees.h
diff --git a/src/3rdparty/zlib/src/uncompr.c b/src/3rdparty/zlib/src/uncompr.c
new file mode 100644
index 0000000000..f03a1a865e
--- /dev/null
+++ b/src/3rdparty/zlib/src/uncompr.c
@@ -0,0 +1,93 @@
+/* uncompr.c -- decompress a memory buffer
+ * Copyright (C) 1995-2003, 2010, 2014, 2016 Jean-loup Gailly, Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#define ZLIB_INTERNAL
+#include "zlib.h"
+
+/* ===========================================================================
+ Decompresses the source buffer into the destination buffer. *sourceLen is
+ the byte length of the source buffer. Upon entry, *destLen is the total size
+ of the destination buffer, which must be large enough to hold the entire
+ uncompressed data. (The size of the uncompressed data must have been saved
+ previously by the compressor and transmitted to the decompressor by some
+ mechanism outside the scope of this compression library.) Upon exit,
+ *destLen is the size of the decompressed data and *sourceLen is the number
+ of source bytes consumed. Upon return, source + *sourceLen points to the
+ first unused input byte.
+
+ uncompress returns Z_OK if success, Z_MEM_ERROR if there was not enough
+ memory, Z_BUF_ERROR if there was not enough room in the output buffer, or
+ Z_DATA_ERROR if the input data was corrupted, including if the input data is
+ an incomplete zlib stream.
+*/
+int ZEXPORT uncompress2 (dest, destLen, source, sourceLen)
+ Bytef *dest;
+ uLongf *destLen;
+ const Bytef *source;
+ uLong *sourceLen;
+{
+ z_stream stream;
+ int err;
+ const uInt max = (uInt)-1;
+ uLong len, left;
+ Byte buf[1]; /* for detection of incomplete stream when *destLen == 0 */
+
+ len = *sourceLen;
+ if (*destLen) {
+ left = *destLen;
+ *destLen = 0;
+ }
+ else {
+ left = 1;
+ dest = buf;
+ }
+
+ stream.next_in = (z_const Bytef *)source;
+ stream.avail_in = 0;
+ stream.zalloc = (alloc_func)0;
+ stream.zfree = (free_func)0;
+ stream.opaque = (voidpf)0;
+
+ err = inflateInit(&stream);
+ if (err != Z_OK) return err;
+
+ stream.next_out = dest;
+ stream.avail_out = 0;
+
+ do {
+ if (stream.avail_out == 0) {
+ stream.avail_out = left > (uLong)max ? max : (uInt)left;
+ left -= stream.avail_out;
+ }
+ if (stream.avail_in == 0) {
+ stream.avail_in = len > (uLong)max ? max : (uInt)len;
+ len -= stream.avail_in;
+ }
+ err = inflate(&stream, Z_NO_FLUSH);
+ } while (err == Z_OK);
+
+ *sourceLen -= len + stream.avail_in;
+ if (dest != buf)
+ *destLen = stream.total_out;
+ else if (stream.total_out && err == Z_BUF_ERROR)
+ left = 1;
+
+ inflateEnd(&stream);
+ return err == Z_STREAM_END ? Z_OK :
+ err == Z_NEED_DICT ? Z_DATA_ERROR :
+ err == Z_BUF_ERROR && left + stream.avail_out ? Z_DATA_ERROR :
+ err;
+}
+
+int ZEXPORT uncompress (dest, destLen, source, sourceLen)
+ Bytef *dest;
+ uLongf *destLen;
+ const Bytef *source;
+ uLong sourceLen;
+{
+ return uncompress2(dest, destLen, source, &sourceLen);
+}
diff --git a/src/3rdparty/zlib/zconf.h b/src/3rdparty/zlib/src/zconf.h
index d01f20bc07..afd234fa54 100644
--- a/src/3rdparty/zlib/zconf.h
+++ b/src/3rdparty/zlib/src/zconf.h
@@ -1,5 +1,5 @@
/* zconf.h -- configuration of the zlib compression library
- * Copyright (C) 1995-2010 Jean-loup Gailly.
+ * Copyright (C) 1995-2016 Jean-loup Gailly, Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -18,11 +18,13 @@
* this permanently in zconf.h using "./configure --zprefix".
*/
#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */
+# define Z_PREFIX_SET
-/* all linked symbols */
+/* all linked symbols and init macros */
# define _dist_code z__dist_code
# define _length_code z__length_code
# define _tr_align z__tr_align
+# define _tr_flush_bits z__tr_flush_bits
# define _tr_flush_block z__tr_flush_block
# define _tr_init z__tr_init
# define _tr_stored_block z__tr_stored_block
@@ -30,81 +32,111 @@
# define adler32 z_adler32
# define adler32_combine z_adler32_combine
# define adler32_combine64 z_adler32_combine64
-# define compress z_compress
-# define compress2 z_compress2
-# define compressBound z_compressBound
+# define adler32_z z_adler32_z
+# ifndef Z_SOLO
+# define compress z_compress
+# define compress2 z_compress2
+# define compressBound z_compressBound
+# endif
# define crc32 z_crc32
# define crc32_combine z_crc32_combine
# define crc32_combine64 z_crc32_combine64
+# define crc32_z z_crc32_z
# define deflate z_deflate
# define deflateBound z_deflateBound
# define deflateCopy z_deflateCopy
# define deflateEnd z_deflateEnd
+# define deflateGetDictionary z_deflateGetDictionary
+# define deflateInit z_deflateInit
+# define deflateInit2 z_deflateInit2
# define deflateInit2_ z_deflateInit2_
# define deflateInit_ z_deflateInit_
# define deflateParams z_deflateParams
+# define deflatePending z_deflatePending
# define deflatePrime z_deflatePrime
# define deflateReset z_deflateReset
+# define deflateResetKeep z_deflateResetKeep
# define deflateSetDictionary z_deflateSetDictionary
# define deflateSetHeader z_deflateSetHeader
# define deflateTune z_deflateTune
# define deflate_copyright z_deflate_copyright
# define get_crc_table z_get_crc_table
-# define gz_error z_gz_error
-# define gz_intmax z_gz_intmax
-# define gz_strwinerror z_gz_strwinerror
-# define gzbuffer z_gzbuffer
-# define gzclearerr z_gzclearerr
-# define gzclose z_gzclose
-# define gzclose_r z_gzclose_r
-# define gzclose_w z_gzclose_w
-# define gzdirect z_gzdirect
-# define gzdopen z_gzdopen
-# define gzeof z_gzeof
-# define gzerror z_gzerror
-# define gzflush z_gzflush
-# define gzgetc z_gzgetc
-# define gzgets z_gzgets
-# define gzoffset z_gzoffset
-# define gzoffset64 z_gzoffset64
-# define gzopen z_gzopen
-# define gzopen64 z_gzopen64
-# define gzprintf z_gzprintf
-# define gzputc z_gzputc
-# define gzputs z_gzputs
-# define gzread z_gzread
-# define gzrewind z_gzrewind
-# define gzseek z_gzseek
-# define gzseek64 z_gzseek64
-# define gzsetparams z_gzsetparams
-# define gztell z_gztell
-# define gztell64 z_gztell64
-# define gzungetc z_gzungetc
-# define gzwrite z_gzwrite
+# ifndef Z_SOLO
+# define gz_error z_gz_error
+# define gz_intmax z_gz_intmax
+# define gz_strwinerror z_gz_strwinerror
+# define gzbuffer z_gzbuffer
+# define gzclearerr z_gzclearerr
+# define gzclose z_gzclose
+# define gzclose_r z_gzclose_r
+# define gzclose_w z_gzclose_w
+# define gzdirect z_gzdirect
+# define gzdopen z_gzdopen
+# define gzeof z_gzeof
+# define gzerror z_gzerror
+# define gzflush z_gzflush
+# define gzfread z_gzfread
+# define gzfwrite z_gzfwrite
+# define gzgetc z_gzgetc
+# define gzgetc_ z_gzgetc_
+# define gzgets z_gzgets
+# define gzoffset z_gzoffset
+# define gzoffset64 z_gzoffset64
+# define gzopen z_gzopen
+# define gzopen64 z_gzopen64
+# ifdef _WIN32
+# define gzopen_w z_gzopen_w
+# endif
+# define gzprintf z_gzprintf
+# define gzputc z_gzputc
+# define gzputs z_gzputs
+# define gzread z_gzread
+# define gzrewind z_gzrewind
+# define gzseek z_gzseek
+# define gzseek64 z_gzseek64
+# define gzsetparams z_gzsetparams
+# define gztell z_gztell
+# define gztell64 z_gztell64
+# define gzungetc z_gzungetc
+# define gzvprintf z_gzvprintf
+# define gzwrite z_gzwrite
+# endif
# define inflate z_inflate
# define inflateBack z_inflateBack
# define inflateBackEnd z_inflateBackEnd
+# define inflateBackInit z_inflateBackInit
# define inflateBackInit_ z_inflateBackInit_
+# define inflateCodesUsed z_inflateCodesUsed
# define inflateCopy z_inflateCopy
# define inflateEnd z_inflateEnd
+# define inflateGetDictionary z_inflateGetDictionary
# define inflateGetHeader z_inflateGetHeader
+# define inflateInit z_inflateInit
+# define inflateInit2 z_inflateInit2
# define inflateInit2_ z_inflateInit2_
# define inflateInit_ z_inflateInit_
# define inflateMark z_inflateMark
# define inflatePrime z_inflatePrime
# define inflateReset z_inflateReset
# define inflateReset2 z_inflateReset2
+# define inflateResetKeep z_inflateResetKeep
# define inflateSetDictionary z_inflateSetDictionary
# define inflateSync z_inflateSync
# define inflateSyncPoint z_inflateSyncPoint
# define inflateUndermine z_inflateUndermine
+# define inflateValidate z_inflateValidate
# define inflate_copyright z_inflate_copyright
# define inflate_fast z_inflate_fast
# define inflate_table z_inflate_table
-# define uncompress z_uncompress
+# ifndef Z_SOLO
+# define uncompress z_uncompress
+# define uncompress2 z_uncompress2
+# endif
# define zError z_zError
-# define zcalloc z_zcalloc
-# define zcfree z_zcfree
+# ifndef Z_SOLO
+# define zcalloc z_zcalloc
+# define zcfree z_zcfree
+# endif
# define zlibCompileFlags z_zlibCompileFlags
# define zlibVersion z_zlibVersion
# define z_errmsg z_z_errmsg
@@ -115,7 +147,9 @@
# define alloc_func z_alloc_func
# define charf z_charf
# define free_func z_free_func
-# define gzFile z_gzFile
+# ifndef Z_SOLO
+# define gzFile z_gzFile
+# endif
# define gz_header z_gz_header
# define gz_headerp z_gz_headerp
# define in_func z_in_func
@@ -201,9 +235,25 @@
# endif
#endif
-/* Some Mac compilers merge all .h files incorrectly: */
-#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__)
-# define NO_DUMMY_DECL
+#if defined(ZLIB_CONST) && !defined(z_const)
+# define z_const const
+#else
+# define z_const
+#endif
+
+#ifdef Z_SOLO
+ typedef unsigned long z_size_t;
+#else
+# define z_longlong long long
+# if defined(NO_SIZE_T)
+ typedef unsigned NO_SIZE_T z_size_t;
+# elif defined(STDC)
+# include <stddef.h>
+ typedef size_t z_size_t;
+# else
+ typedef unsigned long z_size_t;
+# endif
+# undef z_longlong
#endif
/* Maximum value for memLevel in deflateInit2 */
@@ -233,7 +283,7 @@
Of course this will generally degrade compression (there's no free lunch).
The memory requirements for inflate are (in bytes) 1 << windowBits
- that is, 32K for windowBits=15 (default value) plus a few kilobytes
+ that is, 32K for windowBits=15 (default value) plus about 7 kilobytes
for small objects.
*/
@@ -247,6 +297,14 @@
# endif
#endif
+#ifndef Z_ARG /* function prototypes for stdarg */
+# if defined(STDC) || defined(Z_HAVE_STDARG_H)
+# define Z_ARG(args) args
+# else
+# define Z_ARG(args) ()
+# endif
+#endif
+
/* The following definitions for FAR are needed only for MSDOS mixed
* model programming (small or medium model with some far allocations).
* This was tested only with MSC; for other MSDOS compilers you may have
@@ -360,12 +418,47 @@ typedef uLong FAR uLongf;
typedef Byte *voidp;
#endif
+#if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC)
+# include <limits.h>
+# if (UINT_MAX == 0xffffffffUL)
+# define Z_U4 unsigned
+# elif (ULONG_MAX == 0xffffffffUL)
+# define Z_U4 unsigned long
+# elif (USHRT_MAX == 0xffffffffUL)
+# define Z_U4 unsigned short
+# endif
+#endif
+
+#ifdef Z_U4
+ typedef Z_U4 z_crc_t;
+#else
+ typedef unsigned long z_crc_t;
+#endif
+
#if defined(HAVE_UNISTD_H) || !defined(WIN32)
# define Z_HAVE_UNISTD_H
#endif
-#if defined(STDC) && !defined(_WIN32_WCE)
-# include <sys/types.h> /* for off_t */
+#ifdef HAVE_STDARG_H /* may be set to #if 1 by ./configure */
+# define Z_HAVE_STDARG_H
+#endif
+
+#ifdef STDC
+# ifndef Z_SOLO
+# include <sys/types.h> /* for off_t */
+# endif
+#endif
+
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+# ifndef Z_SOLO
+# include <stdarg.h> /* for va_list */
+# endif
+#endif
+
+#ifdef _WIN32
+# ifndef Z_SOLO
+# include <stddef.h> /* for wchar_t */
+# endif
#endif
/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
@@ -374,21 +467,38 @@ typedef uLong FAR uLongf;
* both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
* equivalently requesting no 64-bit operations
*/
-#if -_LARGEFILE64_SOURCE - -1 == 1
+#if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
# undef _LARGEFILE64_SOURCE
#endif
-#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
-# include <unistd.h> /* for SEEK_* and off_t */
-# ifdef VMS
-# include <unixio.h> /* for off_t */
-# endif
-# ifndef z_off_t
-# define z_off_t off_t
+#if defined(__WATCOMC__) && !defined(Z_HAVE_UNISTD_H)
+# define Z_HAVE_UNISTD_H
+#endif
+#ifndef Z_SOLO
+# if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
+# include <unistd.h> /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
+# ifdef VMS
+# include <unixio.h> /* for off_t */
+# endif
+# ifndef z_off_t
+# define z_off_t off_t
+# endif
# endif
#endif
-#ifndef SEEK_SET
+#if defined(_LFS64_LARGEFILE) && _LFS64_LARGEFILE-0
+# define Z_LFS64
+#endif
+
+#if defined(_LARGEFILE64_SOURCE) && defined(Z_LFS64)
+# define Z_LARGE64
+#endif
+
+#if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS-0 == 64 && defined(Z_LFS64)
+# define Z_WANT64
+#endif
+
+#if !defined(SEEK_SET) && !defined(Z_SOLO)
# define SEEK_SET 0 /* Seek from beginning of file. */
# define SEEK_CUR 1 /* Seek from current position. */
# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
@@ -398,18 +508,14 @@ typedef uLong FAR uLongf;
# define z_off_t long
#endif
-#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
+#if !defined(_WIN32) && defined(Z_LARGE64)
# define z_off64_t off64_t
#else
-# define z_off64_t z_off_t
-#endif
-
-#if defined(__OS400__)
-# define NO_vsnprintf
-#endif
-
-#if defined(__MVS__)
-# define NO_vsnprintf
+# if defined(_WIN32) && !defined(__GNUC__) && !defined(Z_SOLO)
+# define z_off64_t __int64
+# else
+# define z_off64_t z_off_t
+# endif
#endif
/* MVS linker does not support external names larger than 8 bytes */
diff --git a/src/3rdparty/zlib/zlib.h b/src/3rdparty/zlib/src/zlib.h
index d0908ab6e9..32c2ce0957 100644
--- a/src/3rdparty/zlib/zlib.h
+++ b/src/3rdparty/zlib/src/zlib.h
@@ -1,7 +1,7 @@
/* zlib.h -- interface of the 'zlib' general purpose compression library
- version 1.2.5, April 19th, 2010
+ version 1.2.11, January 15th, 2017
- Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler
+ Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
@@ -24,8 +24,8 @@
The data format used by the zlib library is described by RFCs (Request for
- Comments) 1950 to 1952 in the files http://www.ietf.org/rfc/rfc1950.txt
- (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format).
+ Comments) 1950 to 1952 in the files http://tools.ietf.org/html/rfc1950
+ (zlib format), rfc1951 (deflate format) and rfc1952 (gzip format).
*/
#ifndef ZLIB_H
@@ -41,11 +41,11 @@
extern "C" {
#endif
-#define ZLIB_VERSION "1.2.5"
-#define ZLIB_VERNUM 0x1250
+#define ZLIB_VERSION "1.2.11 (Qt)"
+#define ZLIB_VERNUM 0x12b0f
#define ZLIB_VER_MAJOR 1
#define ZLIB_VER_MINOR 2
-#define ZLIB_VER_REVISION 5
+#define ZLIB_VER_REVISION 11
#define ZLIB_VER_SUBREVISION 0
/*
@@ -69,7 +69,8 @@ extern "C" {
with "gz". The gzip format is different from the zlib format. gzip is a
gzip wrapper, documented in RFC 1952, wrapped around a deflate stream.
- This library can optionally read and write gzip streams in memory as well.
+ This library can optionally read and write gzip and raw deflate streams in
+ memory as well.
The zlib format was designed to be compact and fast for use in memory
and on communications channels. The gzip format was designed for single-
@@ -78,7 +79,7 @@ extern "C" {
The library does not install any signal handler. The decoder checks
the consistency of the compressed data, so the library should never crash
- even in case of corrupted input.
+ even in the case of corrupted input.
*/
typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size));
@@ -87,23 +88,24 @@ typedef void (*free_func) OF((voidpf opaque, voidpf address));
struct internal_state;
typedef struct z_stream_s {
- Bytef *next_in; /* next input byte */
+ z_const Bytef *next_in; /* next input byte */
uInt avail_in; /* number of bytes available at next_in */
- uLong total_in; /* total nb of input bytes read so far */
+ uLong total_in; /* total number of input bytes read so far */
- Bytef *next_out; /* next output byte should be put there */
+ Bytef *next_out; /* next output byte will go here */
uInt avail_out; /* remaining free space at next_out */
- uLong total_out; /* total nb of bytes output so far */
+ uLong total_out; /* total number of bytes output so far */
- char *msg; /* last error message, NULL if no error */
+ z_const char *msg; /* last error message, NULL if no error */
struct internal_state FAR *state; /* not visible by applications */
alloc_func zalloc; /* used to allocate the internal state */
free_func zfree; /* used to free the internal state */
voidpf opaque; /* private data object passed to zalloc and zfree */
- int data_type; /* best guess about the data type: binary or text */
- uLong adler; /* adler32 value of the uncompressed data */
+ int data_type; /* best guess about the data type: binary or text
+ for deflate, or the decoding state for inflate */
+ uLong adler; /* Adler-32 or CRC-32 value of the uncompressed data */
uLong reserved; /* reserved for future use */
} z_stream;
@@ -146,7 +148,9 @@ typedef gz_header FAR *gz_headerp;
zalloc must return Z_NULL if there is not enough memory for the object.
If zlib is used in a multi-threaded application, zalloc and zfree must be
- thread safe.
+ thread safe. In that case, zlib is thread-safe. When zalloc and zfree are
+ Z_NULL on entry to the initialization function, they are set to internal
+ routines that use the standard library functions malloc() and free().
On 16-bit systems, the functions zalloc and zfree must be able to allocate
exactly 65536 bytes, but will not be required to allocate more than this if
@@ -159,7 +163,7 @@ typedef gz_header FAR *gz_headerp;
The fields total_in and total_out can be used for statistics or progress
reports. After compression, total_in holds the total size of the
- uncompressed data and may be saved for use in the decompressor (particularly
+ uncompressed data and may be saved for use by the decompressor (particularly
if the decompressor wants to decompress everything in a single step).
*/
@@ -204,7 +208,7 @@ typedef gz_header FAR *gz_headerp;
#define Z_TEXT 1
#define Z_ASCII Z_TEXT /* for compatibility with 1.2.2 and earlier */
#define Z_UNKNOWN 2
-/* Possible values of the data_type field (though see inflate()) */
+/* Possible values of the data_type field for deflate() */
#define Z_DEFLATED 8
/* The deflate compression method (the only one supported in this version) */
@@ -262,11 +266,11 @@ ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
enough room in the output buffer), next_in and avail_in are updated and
processing will resume at this point for the next call of deflate().
- - Provide more output starting at next_out and update next_out and avail_out
+ - Generate more output starting at next_out and update next_out and avail_out
accordingly. This action is forced if the parameter flush is non zero.
Forcing flush frequently degrades the compression ratio, so this parameter
- should be set only when necessary (in interactive applications). Some
- output may be provided even if flush is not set.
+ should be set only when necessary. Some output may be provided even if
+ flush is zero.
Before the call of deflate(), the application should ensure that at least
one of the actions is possible, by providing more input and/or consuming more
@@ -275,7 +279,9 @@ ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
output when it wants, for example when the output buffer is full (avail_out
== 0), or after each call of deflate(). If deflate returns Z_OK and with
zero avail_out, it must be called again after making room in the output
- buffer because there might be more output pending.
+ buffer because there might be more output pending. See deflatePending(),
+ which can be used if desired to determine whether or not there is more ouput
+ in that case.
Normally the parameter flush is set to Z_NO_FLUSH, which allows deflate to
decide how much data to accumulate before producing output, in order to
@@ -296,8 +302,8 @@ ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
input data so far will be available to the decompressor, as for Z_SYNC_FLUSH.
This completes the current deflate block and follows it with an empty fixed
codes block that is 10 bits long. This assures that enough bytes are output
- in order for the decompressor to finish the block before the empty fixed code
- block.
+ in order for the decompressor to finish the block before the empty fixed
+ codes block.
If flush is set to Z_BLOCK, a deflate block is completed and emitted, as
for Z_SYNC_FLUSH, but the output is not aligned on a byte boundary, and up to
@@ -323,33 +329,38 @@ ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
If the parameter flush is set to Z_FINISH, pending input is processed,
pending output is flushed and deflate returns with Z_STREAM_END if there was
- enough output space; if deflate returns with Z_OK, this function must be
- called again with Z_FINISH and more output space (updated avail_out) but no
- more input data, until it returns with Z_STREAM_END or an error. After
- deflate has returned Z_STREAM_END, the only possible operations on the stream
- are deflateReset or deflateEnd.
-
- Z_FINISH can be used immediately after deflateInit if all the compression
- is to be done in a single step. In this case, avail_out must be at least the
- value returned by deflateBound (see below). If deflate does not return
- Z_STREAM_END, then it must be called again as described above.
-
- deflate() sets strm->adler to the adler32 checksum of all input read
- so far (that is, total_in bytes).
+ enough output space. If deflate returns with Z_OK or Z_BUF_ERROR, this
+ function must be called again with Z_FINISH and more output space (updated
+ avail_out) but no more input data, until it returns with Z_STREAM_END or an
+ error. After deflate has returned Z_STREAM_END, the only possible operations
+ on the stream are deflateReset or deflateEnd.
+
+ Z_FINISH can be used in the first deflate call after deflateInit if all the
+ compression is to be done in a single step. In order to complete in one
+ call, avail_out must be at least the value returned by deflateBound (see
+ below). Then deflate is guaranteed to return Z_STREAM_END. If not enough
+ output space is provided, deflate will not return Z_STREAM_END, and it must
+ be called again as described above.
+
+ deflate() sets strm->adler to the Adler-32 checksum of all input read
+ so far (that is, total_in bytes). If a gzip stream is being generated, then
+ strm->adler will be the CRC-32 checksum of the input read so far. (See
+ deflateInit2 below.)
deflate() may update strm->data_type if it can make a good guess about
- the input data type (Z_BINARY or Z_TEXT). In doubt, the data is considered
- binary. This field is only for information purposes and does not affect the
- compression algorithm in any manner.
+ the input data type (Z_BINARY or Z_TEXT). If in doubt, the data is
+ considered binary. This field is only for information purposes and does not
+ affect the compression algorithm in any manner.
deflate() returns Z_OK if some progress has been made (more input
processed or more output produced), Z_STREAM_END if all input has been
consumed and all output has been produced (only when flush is set to
Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example
- if next_in or next_out was Z_NULL), Z_BUF_ERROR if no progress is possible
- (for example avail_in or avail_out was zero). Note that Z_BUF_ERROR is not
- fatal, and deflate() can be called again with more input and more output
- space to continue compressing.
+ if next_in or next_out was Z_NULL or the state was inadvertently written over
+ by the application), or Z_BUF_ERROR if no progress is possible (for example
+ avail_in or avail_out was zero). Note that Z_BUF_ERROR is not fatal, and
+ deflate() can be called again with more input and more output space to
+ continue compressing.
*/
@@ -372,23 +383,21 @@ ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm));
Initializes the internal stream state for decompression. The fields
next_in, avail_in, zalloc, zfree and opaque must be initialized before by
- the caller. If next_in is not Z_NULL and avail_in is large enough (the
- exact value depends on the compression method), inflateInit determines the
- compression method from the zlib header and allocates all data structures
- accordingly; otherwise the allocation will be deferred to the first call of
- inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to
- use default allocation functions.
+ the caller. In the current version of inflate, the provided input is not
+ read or consumed. The allocation of a sliding window will be deferred to
+ the first call of inflate (if the decompression does not complete on the
+ first call). If zalloc and zfree are set to Z_NULL, inflateInit updates
+ them to use default allocation functions.
inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
version assumed by the caller, or Z_STREAM_ERROR if the parameters are
invalid, such as a null pointer to the structure. msg is set to null if
- there is no error message. inflateInit does not perform any decompression
- apart from possibly reading the zlib header if present: actual decompression
- will be done by inflate(). (So next_in and avail_in may be modified, but
- next_out and avail_out are unused and unchanged.) The current implementation
- of inflateInit() does not process any header information -- that is deferred
- until inflate() is called.
+ there is no error message. inflateInit does not perform any decompression.
+ Actual decompression will be done by inflate(). So next_in, and avail_in,
+ next_out, and avail_out are unused and unchanged. The current
+ implementation of inflateInit() does not process any header information --
+ that is deferred until inflate() is called.
*/
@@ -404,17 +413,20 @@ ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
- Decompress more input starting at next_in and update next_in and avail_in
accordingly. If not all input can be processed (because there is not
- enough room in the output buffer), next_in is updated and processing will
- resume at this point for the next call of inflate().
+ enough room in the output buffer), then next_in and avail_in are updated
+ accordingly, and processing will resume at this point for the next call of
+ inflate().
- - Provide more output starting at next_out and update next_out and avail_out
+ - Generate more output starting at next_out and update next_out and avail_out
accordingly. inflate() provides as much output as possible, until there is
no more input data or no more space in the output buffer (see below about
the flush parameter).
Before the call of inflate(), the application should ensure that at least
one of the actions is possible, by providing more input and/or consuming more
- output, and updating the next_* and avail_* values accordingly. The
+ output, and updating the next_* and avail_* values accordingly. If the
+ caller of inflate() does not provide both available input and available
+ output space, it is possible that there will be no progress made. The
application can consume the uncompressed output when it wants, for example
when the output buffer is full (avail_out == 0), or after each call of
inflate(). If inflate returns Z_OK and with zero avail_out, it must be
@@ -431,7 +443,7 @@ ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
gets to the end of that block, or when it runs out of data.
The Z_BLOCK option assists in appending to or combining deflate streams.
- Also to assist in this, on return inflate() will set strm->data_type to the
+ To assist in this, on return inflate() always sets strm->data_type to the
number of unused bits in the last byte taken from strm->next_in, plus 64 if
inflate() is currently decoding the last block in the deflate stream, plus
128 if inflate() returned immediately after decoding an end-of-block code or
@@ -455,48 +467,57 @@ ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
error. However if all decompression is to be performed in a single step (a
single call of inflate), the parameter flush should be set to Z_FINISH. In
this case all pending input is processed and all pending output is flushed;
- avail_out must be large enough to hold all the uncompressed data. (The size
- of the uncompressed data may have been saved by the compressor for this
- purpose.) The next operation on this stream must be inflateEnd to deallocate
- the decompression state. The use of Z_FINISH is never required, but can be
- used to inform inflate that a faster approach may be used for the single
- inflate() call.
+ avail_out must be large enough to hold all of the uncompressed data for the
+ operation to complete. (The size of the uncompressed data may have been
+ saved by the compressor for this purpose.) The use of Z_FINISH is not
+ required to perform an inflation in one step. However it may be used to
+ inform inflate that a faster approach can be used for the single inflate()
+ call. Z_FINISH also informs inflate to not maintain a sliding window if the
+ stream completes, which reduces inflate's memory footprint. If the stream
+ does not complete, either because not all of the stream is provided or not
+ enough output space is provided, then a sliding window will be allocated and
+ inflate() can be called again to continue the operation as if Z_NO_FLUSH had
+ been used.
In this implementation, inflate() always flushes as much output as
possible to the output buffer, and always uses the faster approach on the
- first call. So the only effect of the flush parameter in this implementation
- is on the return value of inflate(), as noted below, or when it returns early
- because Z_BLOCK or Z_TREES is used.
+ first call. So the effects of the flush parameter in this implementation are
+ on the return value of inflate() as noted below, when inflate() returns early
+ when Z_BLOCK or Z_TREES is used, and when inflate() avoids the allocation of
+ memory for a sliding window when Z_FINISH is used.
If a preset dictionary is needed after this call (see inflateSetDictionary
- below), inflate sets strm->adler to the adler32 checksum of the dictionary
+ below), inflate sets strm->adler to the Adler-32 checksum of the dictionary
chosen by the compressor and returns Z_NEED_DICT; otherwise it sets
- strm->adler to the adler32 checksum of all output produced so far (that is,
+ strm->adler to the Adler-32 checksum of all output produced so far (that is,
total_out bytes) and returns Z_OK, Z_STREAM_END or an error code as described
- below. At the end of the stream, inflate() checks that its computed adler32
+ below. At the end of the stream, inflate() checks that its computed Adler-32
checksum is equal to that saved by the compressor and returns Z_STREAM_END
only if the checksum is correct.
inflate() can decompress and check either zlib-wrapped or gzip-wrapped
deflate data. The header type is detected automatically, if requested when
initializing with inflateInit2(). Any information contained in the gzip
- header is not retained, so applications that need that information should
- instead use raw inflate, see inflateInit2() below, or inflateBack() and
- perform their own processing of the gzip header and trailer.
+ header is not retained unless inflateGetHeader() is used. When processing
+ gzip-wrapped deflate data, strm->adler32 is set to the CRC-32 of the output
+ produced so far. The CRC-32 is checked against the gzip trailer, as is the
+ uncompressed length, modulo 2^32.
inflate() returns Z_OK if some progress has been made (more input processed
or more output produced), Z_STREAM_END if the end of the compressed data has
been reached and all uncompressed output has been produced, Z_NEED_DICT if a
preset dictionary is needed at this point, Z_DATA_ERROR if the input data was
corrupted (input stream not conforming to the zlib format or incorrect check
- value), Z_STREAM_ERROR if the stream structure was inconsistent (for example
- next_in or next_out was Z_NULL), Z_MEM_ERROR if there was not enough memory,
- Z_BUF_ERROR if no progress is possible or if there was not enough room in the
- output buffer when Z_FINISH is used. Note that Z_BUF_ERROR is not fatal, and
+ value, in which case strm->msg points to a string with a more specific
+ error), Z_STREAM_ERROR if the stream structure was inconsistent (for example
+ next_in or next_out was Z_NULL, or the state was inadvertently written over
+ by the application), Z_MEM_ERROR if there was not enough memory, Z_BUF_ERROR
+ if no progress was possible or if there was not enough room in the output
+ buffer when Z_FINISH is used. Note that Z_BUF_ERROR is not fatal, and
inflate() can be called again with more input and more output space to
continue decompressing. If Z_DATA_ERROR is returned, the application may
then call inflateSync() to look for a good compression block if a partial
- recovery of the data is desired.
+ recovery of the data is to be attempted.
*/
@@ -506,9 +527,8 @@ ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm));
This function discards any unprocessed input and does not flush any pending
output.
- inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state
- was inconsistent. In the error case, msg may be set but then points to a
- static string (which must not be deallocated).
+ inflateEnd returns Z_OK if success, or Z_STREAM_ERROR if the stream state
+ was inconsistent.
*/
@@ -539,16 +559,29 @@ ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm,
compression at the expense of memory usage. The default value is 15 if
deflateInit is used instead.
+ For the current implementation of deflate(), a windowBits value of 8 (a
+ window size of 256 bytes) is not supported. As a result, a request for 8
+ will result in 9 (a 512-byte window). In that case, providing 8 to
+ inflateInit2() will result in an error when the zlib header with 9 is
+ checked against the initialization of inflate(). The remedy is to not use 8
+ with deflateInit2() with this initialization, or at least in that case use 9
+ with inflateInit2().
+
windowBits can also be -8..-15 for raw deflate. In this case, -windowBits
determines the window size. deflate() will then generate raw deflate data
- with no zlib header or trailer, and will not compute an adler32 check value.
+ with no zlib header or trailer, and will not compute a check value.
windowBits can also be greater than 15 for optional gzip encoding. Add
16 to windowBits to write a simple gzip header and trailer around the
compressed data instead of a zlib wrapper. The gzip header will have no
file name, no extra data, no comment, no modification time (set to zero), no
- header crc, and the operating system will be set to 255 (unknown). If a
- gzip stream is being written, strm->adler is a crc32 instead of an adler32.
+ header crc, and the operating system will be set to the appropriate value,
+ if the operating system was determined at compile time. If a gzip stream is
+ being written, strm->adler is a CRC-32 instead of an Adler-32.
+
+ For raw deflate or gzip encoding, a request for a 256-byte window is
+ rejected as invalid, since only the zlib header provides a means of
+ transmitting the window size to the decompressor.
The memLevel parameter specifies how much memory should be allocated
for the internal compression state. memLevel=1 uses minimum memory but is
@@ -584,10 +617,15 @@ ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm,
uInt dictLength));
/*
Initializes the compression dictionary from the given byte sequence
- without producing any compressed output. This function must be called
- immediately after deflateInit, deflateInit2 or deflateReset, before any call
- of deflate. The compressor and decompressor must use exactly the same
- dictionary (see inflateSetDictionary).
+ without producing any compressed output. When using the zlib format, this
+ function must be called immediately after deflateInit, deflateInit2 or
+ deflateReset, and before any call of deflate. When doing raw deflate, this
+ function must be called either before any call of deflate, or immediately
+ after the completion of a deflate block, i.e. after all input has been
+ consumed and all output has been delivered when using any of the flush
+ options Z_BLOCK, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, or Z_FULL_FLUSH. The
+ compressor and decompressor must use exactly the same dictionary (see
+ inflateSetDictionary).
The dictionary should consist of strings (byte sequences) that are likely
to be encountered later in the data to be compressed, with the most commonly
@@ -604,18 +642,40 @@ ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm,
addition, the current implementation of deflate will use at most the window
size minus 262 bytes of the provided dictionary.
- Upon return of this function, strm->adler is set to the adler32 value
+ Upon return of this function, strm->adler is set to the Adler-32 value
of the dictionary; the decompressor may later use this value to determine
- which dictionary has been used by the compressor. (The adler32 value
+ which dictionary has been used by the compressor. (The Adler-32 value
applies to the whole dictionary even if only a subset of the dictionary is
actually used by the compressor.) If a raw deflate was requested, then the
- adler32 value is not computed and strm->adler is not set.
+ Adler-32 value is not computed and strm->adler is not set.
deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a
parameter is invalid (e.g. dictionary being Z_NULL) or the stream state is
inconsistent (for example if deflate has already been called for this stream
- or if the compression method is bsort). deflateSetDictionary does not
- perform any compression: this will be done by deflate().
+ or if not at a block boundary for raw deflate). deflateSetDictionary does
+ not perform any compression: this will be done by deflate().
+*/
+
+ZEXTERN int ZEXPORT deflateGetDictionary OF((z_streamp strm,
+ Bytef *dictionary,
+ uInt *dictLength));
+/*
+ Returns the sliding dictionary being maintained by deflate. dictLength is
+ set to the number of bytes in the dictionary, and that many bytes are copied
+ to dictionary. dictionary must have enough space, where 32768 bytes is
+ always enough. If deflateGetDictionary() is called with dictionary equal to
+ Z_NULL, then only the dictionary length is returned, and nothing is copied.
+ Similary, if dictLength is Z_NULL, then it is not set.
+
+ deflateGetDictionary() may return a length less than the window size, even
+ when more than the window size in input has been provided. It may return up
+ to 258 bytes less in that case, due to how zlib's implementation of deflate
+ manages the sliding window and lookahead for matches, where matches can be
+ up to 258 bytes long. If the application needs the last window-size bytes of
+ input, then that would need to be saved by the application outside of zlib.
+
+ deflateGetDictionary returns Z_OK on success, or Z_STREAM_ERROR if the
+ stream state is inconsistent.
*/
ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest,
@@ -638,10 +698,10 @@ ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest,
ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm));
/*
- This function is equivalent to deflateEnd followed by deflateInit,
- but does not free and reallocate all the internal compression state. The
- stream will keep the same compression level and any other attributes that
- may have been set by deflateInit2.
+ This function is equivalent to deflateEnd followed by deflateInit, but
+ does not free and reallocate the internal compression state. The stream
+ will leave the compression level and any other attributes that may have been
+ set unchanged.
deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
stream state was inconsistent (such as zalloc or state being Z_NULL).
@@ -652,20 +712,36 @@ ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm,
int strategy));
/*
Dynamically update the compression level and compression strategy. The
- interpretation of level and strategy is as in deflateInit2. This can be
+ interpretation of level and strategy is as in deflateInit2(). This can be
used to switch between compression and straight copy of the input data, or
to switch to a different kind of input data requiring a different strategy.
- If the compression level is changed, the input available so far is
- compressed with the old level (and may be flushed); the new level will take
- effect only at the next call of deflate().
-
- Before the call of deflateParams, the stream state must be set as for
- a call of deflate(), since the currently available input may have to be
- compressed and flushed. In particular, strm->avail_out must be non-zero.
-
- deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source
- stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR if
- strm->avail_out was zero.
+ If the compression approach (which is a function of the level) or the
+ strategy is changed, and if any input has been consumed in a previous
+ deflate() call, then the input available so far is compressed with the old
+ level and strategy using deflate(strm, Z_BLOCK). There are three approaches
+ for the compression levels 0, 1..3, and 4..9 respectively. The new level
+ and strategy will take effect at the next call of deflate().
+
+ If a deflate(strm, Z_BLOCK) is performed by deflateParams(), and it does
+ not have enough output space to complete, then the parameter change will not
+ take effect. In this case, deflateParams() can be called again with the
+ same parameters and more output space to try again.
+
+ In order to assure a change in the parameters on the first try, the
+ deflate stream should be flushed using deflate() with Z_BLOCK or other flush
+ request until strm.avail_out is not zero, before calling deflateParams().
+ Then no more input data should be provided before the deflateParams() call.
+ If this is done, the old level and strategy will be applied to the data
+ compressed before deflateParams(), and the new level and strategy will be
+ applied to the the data compressed after deflateParams().
+
+ deflateParams returns Z_OK on success, Z_STREAM_ERROR if the source stream
+ state was inconsistent or if a parameter was invalid, or Z_BUF_ERROR if
+ there was not enough output space to complete the compression of the
+ available input data before a change in the strategy or approach. Note that
+ in the case of a Z_BUF_ERROR, the parameters are not changed. A return
+ value of Z_BUF_ERROR is not fatal, in which case deflateParams() can be
+ retried with more output space.
*/
ZEXTERN int ZEXPORT deflateTune OF((z_streamp strm,
@@ -692,8 +768,28 @@ ZEXTERN uLong ZEXPORT deflateBound OF((z_streamp strm,
deflation of sourceLen bytes. It must be called after deflateInit() or
deflateInit2(), and after deflateSetHeader(), if used. This would be used
to allocate an output buffer for deflation in a single pass, and so would be
- called before deflate().
-*/
+ called before deflate(). If that first deflate() call is provided the
+ sourceLen input bytes, an output buffer allocated to the size returned by
+ deflateBound(), and the flush value Z_FINISH, then deflate() is guaranteed
+ to return Z_STREAM_END. Note that it is possible for the compressed size to
+ be larger than the value returned by deflateBound() if flush options other
+ than Z_FINISH or Z_NO_FLUSH are used.
+*/
+
+ZEXTERN int ZEXPORT deflatePending OF((z_streamp strm,
+ unsigned *pending,
+ int *bits));
+/*
+ deflatePending() returns the number of bytes and bits of output that have
+ been generated, but not yet provided in the available output. The bytes not
+ provided would be due to the available output space having being consumed.
+ The number of bits of output not provided are between 0 and 7, where they
+ await more bits to join them in order to fill out a full byte. If pending
+ or bits are Z_NULL, then those values are not set.
+
+ deflatePending returns Z_OK if success, or Z_STREAM_ERROR if the source
+ stream state was inconsistent.
+ */
ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm,
int bits,
@@ -707,8 +803,9 @@ ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm,
than or equal to 16, and that many of the least significant bits of value
will be inserted in the output.
- deflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source
- stream state was inconsistent.
+ deflatePrime returns Z_OK if success, Z_BUF_ERROR if there was not enough
+ room in the internal buffer to insert the bits, or Z_STREAM_ERROR if the
+ source stream state was inconsistent.
*/
ZEXTERN int ZEXPORT deflateSetHeader OF((z_streamp strm,
@@ -762,7 +859,7 @@ ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm,
is for use with other formats that use the deflate compressed data format
such as zip. Those formats provide their own check values. If a custom
format is developed using the raw deflate format for compressed data, it is
- recommended that a check value such as an adler32 or a crc32 be applied to
+ recommended that a check value such as an Adler-32 or a CRC-32 be applied to
the uncompressed data as is done in the zlib, gzip, and zip formats. For
most applications, the zlib format should be used as is. Note that comments
above on the use in deflateInit2() applies to the magnitude of windowBits.
@@ -771,7 +868,10 @@ ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm,
32 to windowBits to enable zlib and gzip decoding with automatic header
detection, or add 16 to decode only the gzip format (the zlib format will
return a Z_DATA_ERROR). If a gzip stream is being decoded, strm->adler is a
- crc32 instead of an adler32.
+ CRC-32 instead of an Adler-32. Unlike the gunzip utility and gzread() (see
+ below), inflate() will not automatically decode concatenated gzip streams.
+ inflate() will return Z_STREAM_END at the end of the gzip stream. The state
+ would need to be reset to continue decoding a subsequent gzip stream.
inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
@@ -792,34 +892,54 @@ ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm,
Initializes the decompression dictionary from the given uncompressed byte
sequence. This function must be called immediately after a call of inflate,
if that call returned Z_NEED_DICT. The dictionary chosen by the compressor
- can be determined from the adler32 value returned by that call of inflate.
+ can be determined from the Adler-32 value returned by that call of inflate.
The compressor and decompressor must use exactly the same dictionary (see
- deflateSetDictionary). For raw inflate, this function can be called
- immediately after inflateInit2() or inflateReset() and before any call of
- inflate() to set the dictionary. The application must insure that the
- dictionary that was used for compression is provided.
+ deflateSetDictionary). For raw inflate, this function can be called at any
+ time to set the dictionary. If the provided dictionary is smaller than the
+ window and there is already data in the window, then the provided dictionary
+ will amend what's there. The application must insure that the dictionary
+ that was used for compression is provided.
inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a
parameter is invalid (e.g. dictionary being Z_NULL) or the stream state is
inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the
- expected one (incorrect adler32 value). inflateSetDictionary does not
+ expected one (incorrect Adler-32 value). inflateSetDictionary does not
perform any decompression: this will be done by subsequent calls of
inflate().
*/
+ZEXTERN int ZEXPORT inflateGetDictionary OF((z_streamp strm,
+ Bytef *dictionary,
+ uInt *dictLength));
+/*
+ Returns the sliding dictionary being maintained by inflate. dictLength is
+ set to the number of bytes in the dictionary, and that many bytes are copied
+ to dictionary. dictionary must have enough space, where 32768 bytes is
+ always enough. If inflateGetDictionary() is called with dictionary equal to
+ Z_NULL, then only the dictionary length is returned, and nothing is copied.
+ Similary, if dictLength is Z_NULL, then it is not set.
+
+ inflateGetDictionary returns Z_OK on success, or Z_STREAM_ERROR if the
+ stream state is inconsistent.
+*/
+
ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm));
/*
- Skips invalid compressed data until a full flush point (see above the
- description of deflate with Z_FULL_FLUSH) can be found, or until all
+ Skips invalid compressed data until a possible full flush point (see above
+ for the description of deflate with Z_FULL_FLUSH) can be found, or until all
available input is skipped. No output is provided.
- inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR
- if no more input was provided, Z_DATA_ERROR if no flush point has been
- found, or Z_STREAM_ERROR if the stream structure was inconsistent. In the
- success case, the application may save the current current value of total_in
- which indicates where valid compressed data was found. In the error case,
- the application may repeatedly call inflateSync, providing more input each
- time, until success or end of the input data.
+ inflateSync searches for a 00 00 FF FF pattern in the compressed data.
+ All full flush points have this pattern, but not all occurrences of this
+ pattern are full flush points.
+
+ inflateSync returns Z_OK if a possible full flush point has been found,
+ Z_BUF_ERROR if no more input was provided, Z_DATA_ERROR if no flush point
+ has been found, or Z_STREAM_ERROR if the stream structure was inconsistent.
+ In the success case, the application may save the current current value of
+ total_in which indicates where valid compressed data was found. In the
+ error case, the application may repeatedly call inflateSync, providing more
+ input each time, until success or end of the input data.
*/
ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest,
@@ -841,7 +961,7 @@ ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest,
ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm));
/*
This function is equivalent to inflateEnd followed by inflateInit,
- but does not free and reallocate all the internal decompression state. The
+ but does not free and reallocate the internal decompression state. The
stream will keep attributes that may have been set by inflateInit2.
inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
@@ -853,7 +973,9 @@ ZEXTERN int ZEXPORT inflateReset2 OF((z_streamp strm,
/*
This function is the same as inflateReset, but it also permits changing
the wrap and window size requests. The windowBits parameter is interpreted
- the same as it is for inflateInit2.
+ the same as it is for inflateInit2. If the window size is changed, then the
+ memory allocated for the window is freed, and the window will be reallocated
+ by inflate() if needed.
inflateReset2 returns Z_OK if success, or Z_STREAM_ERROR if the source
stream state was inconsistent (such as zalloc or state being Z_NULL), or if
@@ -905,7 +1027,7 @@ ZEXTERN long ZEXPORT inflateMark OF((z_streamp strm));
location in the input stream can be determined from avail_in and data_type
as noted in the description for the Z_BLOCK flush parameter for inflate.
- inflateMark returns the value noted above or -1 << 16 if the provided
+ inflateMark returns the value noted above, or -65536 if the provided
source stream state was inconsistent.
*/
@@ -966,12 +1088,13 @@ ZEXTERN int ZEXPORT inflateBackInit OF((z_streamp strm, int windowBits,
See inflateBack() for the usage of these routines.
inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of
- the paramaters are invalid, Z_MEM_ERROR if the internal state could not be
+ the parameters are invalid, Z_MEM_ERROR if the internal state could not be
allocated, or Z_VERSION_ERROR if the version of the library does not match
the version of the header file.
*/
-typedef unsigned (*in_func) OF((void FAR *, unsigned char FAR * FAR *));
+typedef unsigned (*in_func) OF((void FAR *,
+ z_const unsigned char FAR * FAR *));
typedef int (*out_func) OF((void FAR *, unsigned char FAR *, unsigned));
ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm,
@@ -979,11 +1102,12 @@ ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm,
out_func out, void FAR *out_desc));
/*
inflateBack() does a raw inflate with a single call using a call-back
- interface for input and output. This is more efficient than inflate() for
- file i/o applications in that it avoids copying between the output and the
- sliding window by simply making the window itself the output buffer. This
- function trusts the application to not change the output buffer passed by
- the output function, at least until inflateBack() returns.
+ interface for input and output. This is potentially more efficient than
+ inflate() for file i/o applications, in that it avoids copying between the
+ output and the sliding window by simply making the window itself the output
+ buffer. inflate() can be faster on modern CPUs when used with large
+ buffers. inflateBack() trusts the application to not change the output
+ buffer passed by the output function, at least until inflateBack() returns.
inflateBackInit() must be called first to allocate the internal state
and to initialize the state with the user-provided window buffer.
@@ -995,9 +1119,9 @@ ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm,
This routine would normally be used in a utility that reads zip or gzip
files and writes out uncompressed files. The utility would decode the
header and process the trailer on its own, hence this routine expects only
- the raw deflate stream to decompress. This is different from the normal
- behavior of inflate(), which expects either a zlib or gzip header and
- trailer around the deflate stream.
+ the raw deflate stream to decompress. This is different from the default
+ behavior of inflate(), which expects a zlib header and trailer around the
+ deflate stream.
inflateBack() uses two subroutines supplied by the caller that are then
called by inflateBack() for input and output. inflateBack() calls those
@@ -1006,12 +1130,12 @@ ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm,
parameters and return types are defined above in the in_func and out_func
typedefs. inflateBack() will call in(in_desc, &buf) which should return the
number of bytes of provided input, and a pointer to that input in buf. If
- there is no input available, in() must return zero--buf is ignored in that
- case--and inflateBack() will return a buffer error. inflateBack() will call
- out(out_desc, buf, len) to write the uncompressed data buf[0..len-1]. out()
- should return zero on success, or non-zero on failure. If out() returns
- non-zero, inflateBack() will return with an error. Neither in() nor out()
- are permitted to change the contents of the window provided to
+ there is no input available, in() must return zero -- buf is ignored in that
+ case -- and inflateBack() will return a buffer error. inflateBack() will
+ call out(out_desc, buf, len) to write the uncompressed data buf[0..len-1].
+ out() should return zero on success, or non-zero on failure. If out()
+ returns non-zero, inflateBack() will return with an error. Neither in() nor
+ out() are permitted to change the contents of the window provided to
inflateBackInit(), which is also the buffer that out() uses to write from.
The length written by out() will be at most the window size. Any non-zero
amount of input may be provided by in().
@@ -1039,7 +1163,7 @@ ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm,
using strm->next_in which will be Z_NULL only if in() returned an error. If
strm->next_in is not Z_NULL, then the Z_BUF_ERROR was due to out() returning
non-zero. (in() will always be called before out(), so strm->next_in is
- assured to be defined if out() returns non-zero.) Note that inflateBack()
+ assured to be defined if out() returns non-zero.) Note that inflateBack()
cannot return Z_OK.
*/
@@ -1061,7 +1185,7 @@ ZEXTERN uLong ZEXPORT zlibCompileFlags OF((void));
7.6: size of z_off_t
Compiler, assembler, and debug options:
- 8: DEBUG
+ 8: ZLIB_DEBUG
9: ASMV or ASMINF -- use ASM code
10: ZLIB_WINAPI -- exported functions use the WINAPI calling convention
11: 0 (reserved)
@@ -1092,6 +1216,7 @@ ZEXTERN uLong ZEXPORT zlibCompileFlags OF((void));
27-31: 0 (reserved)
*/
+#ifndef Z_SOLO
/* utility functions */
@@ -1110,7 +1235,8 @@ ZEXTERN int ZEXPORT compress OF((Bytef *dest, uLongf *destLen,
the byte length of the source buffer. Upon entry, destLen is the total size
of the destination buffer, which must be at least the value returned by
compressBound(sourceLen). Upon exit, destLen is the actual size of the
- compressed buffer.
+ compressed data. compress() is equivalent to compress2() with a level
+ parameter of Z_DEFAULT_COMPRESSION.
compress returns Z_OK if success, Z_MEM_ERROR if there was not
enough memory, Z_BUF_ERROR if there was not enough room in the output
@@ -1126,7 +1252,7 @@ ZEXTERN int ZEXPORT compress2 OF((Bytef *dest, uLongf *destLen,
length of the source buffer. Upon entry, destLen is the total size of the
destination buffer, which must be at least the value returned by
compressBound(sourceLen). Upon exit, destLen is the actual size of the
- compressed buffer.
+ compressed data.
compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
memory, Z_BUF_ERROR if there was not enough room in the output buffer,
@@ -1149,13 +1275,22 @@ ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen,
uncompressed data. (The size of the uncompressed data must have been saved
previously by the compressor and transmitted to the decompressor by some
mechanism outside the scope of this compression library.) Upon exit, destLen
- is the actual size of the uncompressed buffer.
+ is the actual size of the uncompressed data.
uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
enough memory, Z_BUF_ERROR if there was not enough room in the output
- buffer, or Z_DATA_ERROR if the input data was corrupted or incomplete.
+ buffer, or Z_DATA_ERROR if the input data was corrupted or incomplete. In
+ the case where there is not enough room, uncompress() will fill the output
+ buffer with the uncompressed data up to that point.
*/
+ZEXTERN int ZEXPORT uncompress2 OF((Bytef *dest, uLongf *destLen,
+ const Bytef *source, uLong *sourceLen));
+/*
+ Same as uncompress, except that sourceLen is a pointer, where the
+ length of the source is *sourceLen. On return, *sourceLen is the number of
+ source bytes consumed.
+*/
/* gzip file access functions */
@@ -1166,7 +1301,7 @@ ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen,
wrapper, documented in RFC 1952, wrapped around a deflate stream.
*/
-typedef voidp gzFile; /* opaque gzip file descriptor */
+typedef struct gzFile_s *gzFile; /* semi-opaque gzip file descriptor */
/*
ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode));
@@ -1176,13 +1311,28 @@ ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode));
a strategy: 'f' for filtered data as in "wb6f", 'h' for Huffman-only
compression as in "wb1h", 'R' for run-length encoding as in "wb1R", or 'F'
for fixed code compression as in "wb9F". (See the description of
- deflateInit2 for more information about the strategy parameter.) Also "a"
- can be used instead of "w" to request that the gzip stream that will be
- written be appended to the file. "+" will result in an error, since reading
- and writing to the same gzip file is not supported.
+ deflateInit2 for more information about the strategy parameter.) 'T' will
+ request transparent writing or appending with no compression and not using
+ the gzip format.
+
+ "a" can be used instead of "w" to request that the gzip stream that will
+ be written be appended to the file. "+" will result in an error, since
+ reading and writing to the same gzip file is not supported. The addition of
+ "x" when writing will create the file exclusively, which fails if the file
+ already exists. On systems that support it, the addition of "e" when
+ reading or writing will set the flag to close the file on an execve() call.
+
+ These functions, as well as gzip, will read and decode a sequence of gzip
+ streams in a file. The append function of gzopen() can be used to create
+ such a file. (Also see gzflush() for another way to do this.) When
+ appending, gzopen does not test whether the file begins with a gzip stream,
+ nor does it look for the end of the gzip streams to begin appending. gzopen
+ will simply append a gzip stream to the existing file.
gzopen can be used to read a file which is not in gzip format; in this
- case gzread will directly read from the file without decompression.
+ case gzread will directly read from the file without decompression. When
+ reading, this will be detected automatically by looking for the magic two-
+ byte gzip header.
gzopen returns NULL if the file could not be opened, if there was
insufficient memory to allocate the gzFile state, or if an invalid mode was
@@ -1201,7 +1351,11 @@ ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode));
descriptor fd, just like fclose(fdopen(fd, mode)) closes the file descriptor
fd. If you want to keep fd open, use fd = dup(fd_keep); gz = gzdopen(fd,
mode);. The duplicated descriptor should be saved to avoid a leak, since
- gzdopen does not close fd if it fails.
+ gzdopen does not close fd if it fails. If you are using fileno() to get the
+ file descriptor from a FILE *, then you will have to use dup() to avoid
+ double-close()ing the file descriptor. Both gzclose() and fclose() will
+ close the associated file descriptor, so they need to have different file
+ descriptors.
gzdopen returns NULL if there was insufficient memory to allocate the
gzFile state, if an invalid mode was specified (an 'r', 'w', or 'a' was not
@@ -1216,10 +1370,9 @@ ZEXTERN int ZEXPORT gzbuffer OF((gzFile file, unsigned size));
default buffer size is 8192 bytes. This function must be called after
gzopen() or gzdopen(), and before any other calls that read or write the
file. The buffer memory allocation is always deferred to the first read or
- write. Two buffers are allocated, either both of the specified size when
- writing, or one of the specified size and the other twice that size when
- reading. A larger buffer size of, for example, 64K or 128K bytes will
- noticeably increase the speed of decompression (reading).
+ write. Three times that size in buffer space is allocated. A larger buffer
+ size of, for example, 64K or 128K bytes will noticeably increase the speed
+ of decompression (reading).
The new buffer size also affects the maximum length for gzprintf().
@@ -1230,26 +1383,68 @@ ZEXTERN int ZEXPORT gzbuffer OF((gzFile file, unsigned size));
ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy));
/*
Dynamically update the compression level or strategy. See the description
- of deflateInit2 for the meaning of these parameters.
+ of deflateInit2 for the meaning of these parameters. Previously provided
+ data is flushed before the parameter change.
- gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not
- opened for writing.
+ gzsetparams returns Z_OK if success, Z_STREAM_ERROR if the file was not
+ opened for writing, Z_ERRNO if there is an error writing the flushed data,
+ or Z_MEM_ERROR if there is a memory allocation error.
*/
ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len));
/*
Reads the given number of uncompressed bytes from the compressed file. If
- the input file was not in gzip format, gzread copies the given number of
- bytes into the buffer.
+ the input file is not in gzip format, gzread copies the given number of
+ bytes into the buffer directly from the file.
After reaching the end of a gzip stream in the input, gzread will continue
- to read, looking for another gzip stream, or failing that, reading the rest
- of the input file directly without decompression. The entire input file
- will be read if gzread is called until it returns less than the requested
- len.
+ to read, looking for another gzip stream. Any number of gzip streams may be
+ concatenated in the input file, and will all be decompressed by gzread().
+ If something other than a gzip stream is encountered after a gzip stream,
+ that remaining trailing garbage is ignored (and no error is returned).
+
+ gzread can be used to read a gzip file that is being concurrently written.
+ Upon reaching the end of the input, gzread will return with the available
+ data. If the error code returned by gzerror is Z_OK or Z_BUF_ERROR, then
+ gzclearerr can be used to clear the end of file indicator in order to permit
+ gzread to be tried again. Z_OK indicates that a gzip stream was completed
+ on the last gzread. Z_BUF_ERROR indicates that the input file ended in the
+ middle of a gzip stream. Note that gzread does not return -1 in the event
+ of an incomplete gzip stream. This error is deferred until gzclose(), which
+ will return Z_BUF_ERROR if the last gzread ended in the middle of a gzip
+ stream. Alternatively, gzerror can be used before gzclose to detect this
+ case.
gzread returns the number of uncompressed bytes actually read, less than
- len for end of file, or -1 for error.
+ len for end of file, or -1 for error. If len is too large to fit in an int,
+ then nothing is read, -1 is returned, and the error state is set to
+ Z_STREAM_ERROR.
+*/
+
+ZEXTERN z_size_t ZEXPORT gzfread OF((voidp buf, z_size_t size, z_size_t nitems,
+ gzFile file));
+/*
+ Read up to nitems items of size size from file to buf, otherwise operating
+ as gzread() does. This duplicates the interface of stdio's fread(), with
+ size_t request and return types. If the library defines size_t, then
+ z_size_t is identical to size_t. If not, then z_size_t is an unsigned
+ integer type that can contain a pointer.
+
+ gzfread() returns the number of full items read of size size, or zero if
+ the end of the file was reached and a full item could not be read, or if
+ there was an error. gzerror() must be consulted if zero is returned in
+ order to determine if there was an error. If the multiplication of size and
+ nitems overflows, i.e. the product does not fit in a z_size_t, then nothing
+ is read, zero is returned, and the error state is set to Z_STREAM_ERROR.
+
+ In the event that the end of file is reached and only a partial item is
+ available at the end, i.e. the remaining uncompressed data length is not a
+ multiple of size, then the final partial item is nevetheless read into buf
+ and the end-of-file flag is set. The length of the partial item read is not
+ provided, but could be inferred from the result of gztell(). This behavior
+ is the same as the behavior of fread() implementations in common libraries,
+ but it prevents the direct use of gzfread() to read a concurrently written
+ file, reseting and retrying on end-of-file, when size is not 1.
*/
ZEXTERN int ZEXPORT gzwrite OF((gzFile file,
@@ -1260,19 +1455,33 @@ ZEXTERN int ZEXPORT gzwrite OF((gzFile file,
error.
*/
-ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...));
+ZEXTERN z_size_t ZEXPORT gzfwrite OF((voidpc buf, z_size_t size,
+ z_size_t nitems, gzFile file));
+/*
+ gzfwrite() writes nitems items of size size from buf to file, duplicating
+ the interface of stdio's fwrite(), with size_t request and return types. If
+ the library defines size_t, then z_size_t is identical to size_t. If not,
+ then z_size_t is an unsigned integer type that can contain a pointer.
+
+ gzfwrite() returns the number of full items written of size size, or zero
+ if there was an error. If the multiplication of size and nitems overflows,
+ i.e. the product does not fit in a z_size_t, then nothing is written, zero
+ is returned, and the error state is set to Z_STREAM_ERROR.
+*/
+
+ZEXTERN int ZEXPORTVA gzprintf Z_ARG((gzFile file, const char *format, ...));
/*
Converts, formats, and writes the arguments to the compressed file under
control of the format string, as in fprintf. gzprintf returns the number of
- uncompressed bytes actually written, or 0 in case of error. The number of
- uncompressed bytes written is limited to 8191, or one less than the buffer
- size given to gzbuffer(). The caller should assure that this limit is not
- exceeded. If it is exceeded, then gzprintf() will return an error (0) with
- nothing written. In this case, there may also be a buffer overflow with
- unpredictable consequences, which is possible only if zlib was compiled with
- the insecure functions sprintf() or vsprintf() because the secure snprintf()
- or vsnprintf() functions were not available. This can be determined using
- zlibCompileFlags().
+ uncompressed bytes actually written, or a negative zlib error code in case
+ of error. The number of uncompressed bytes written is limited to 8191, or
+ one less than the buffer size given to gzbuffer(). The caller should assure
+ that this limit is not exceeded. If it is exceeded, then gzprintf() will
+ return an error (0) with nothing written. In this case, there may also be a
+ buffer overflow with unpredictable consequences, which is possible only if
+ zlib was compiled with the insecure functions sprintf() or vsprintf()
+ because the secure snprintf() or vsnprintf() functions were not available.
+ This can be determined using zlibCompileFlags().
*/
ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s));
@@ -1305,7 +1514,10 @@ ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c));
ZEXTERN int ZEXPORT gzgetc OF((gzFile file));
/*
Reads one byte from the compressed file. gzgetc returns this byte or -1
- in case of end of file or error.
+ in case of end of file or error. This is implemented as a macro for speed.
+ As such, it does not do all of the checking the other functions do. I.e.
+ it does not check to see if file is NULL, nor whether the structure file
+ points to has been clobbered or not.
*/
ZEXTERN int ZEXPORT gzungetc OF((int c, gzFile file));
@@ -1329,7 +1541,7 @@ ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush));
If the flush parameter is Z_FINISH, the remaining data is written and the
gzip stream is completed in the output. If gzwrite() is called again, a new
gzip stream will be started in the output. gzread() is able to read such
- concatented gzip streams.
+ concatenated gzip streams.
gzflush should be called only when strictly necessary because it will
degrade compression if called too often.
@@ -1401,9 +1613,7 @@ ZEXTERN int ZEXPORT gzeof OF((gzFile file));
ZEXTERN int ZEXPORT gzdirect OF((gzFile file));
/*
Returns true (1) if file is being copied directly while reading, or false
- (0) if file is a gzip stream being decompressed. This state can change from
- false to true while reading the input file if the end of a gzip stream is
- reached, but is followed by data that is not another gzip stream.
+ (0) if file is a gzip stream being decompressed.
If the input file is empty, gzdirect() will return true, since the input
does not contain a gzip stream.
@@ -1412,6 +1622,13 @@ ZEXTERN int ZEXPORT gzdirect OF((gzFile file));
cause buffers to be allocated to allow reading the file to determine if it
is a gzip file. Therefore if gzbuffer() is used, it should be called before
gzdirect().
+
+ When writing, gzdirect() returns true (1) if transparent writing was
+ requested ("wT" for the gzopen() mode), or false (0) otherwise. (Note:
+ gzdirect() is not needed when writing. Transparent writing must be
+ explicitly requested, so the application already knows the answer. When
+ linking statically, using gzdirect() will include all of the zlib code for
+ gzip file reading and decompression, which may not be desired.)
*/
ZEXTERN int ZEXPORT gzclose OF((gzFile file));
@@ -1423,7 +1640,8 @@ ZEXTERN int ZEXPORT gzclose OF((gzFile file));
must not be called more than once on the same allocation.
gzclose will return Z_STREAM_ERROR if file is not valid, Z_ERRNO on a
- file operation error, or Z_OK on success.
+ file operation error, Z_MEM_ERROR if out of memory, Z_BUF_ERROR if the
+ last read ended in the middle of a gzip stream, or Z_OK on success.
*/
ZEXTERN int ZEXPORT gzclose_r OF((gzFile file));
@@ -1461,6 +1679,7 @@ ZEXTERN void ZEXPORT gzclearerr OF((gzFile file));
file that is being written concurrently.
*/
+#endif /* !Z_SOLO */
/* checksum functions */
@@ -1476,7 +1695,7 @@ ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len));
return the updated checksum. If buf is Z_NULL, this function returns the
required initial value for the checksum.
- An Adler-32 checksum is almost as reliable as a CRC32 but can be computed
+ An Adler-32 checksum is almost as reliable as a CRC-32 but can be computed
much faster.
Usage example:
@@ -1489,6 +1708,12 @@ ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len));
if (adler != original_adler) error();
*/
+ZEXTERN uLong ZEXPORT adler32_z OF((uLong adler, const Bytef *buf,
+ z_size_t len));
+/*
+ Same as adler32(), but with a size_t length.
+*/
+
/*
ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2,
z_off_t len2));
@@ -1496,16 +1721,17 @@ ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2,
Combine two Adler-32 checksums into one. For two sequences of bytes, seq1
and seq2 with lengths len1 and len2, Adler-32 checksums were calculated for
each, adler1 and adler2. adler32_combine() returns the Adler-32 checksum of
- seq1 and seq2 concatenated, requiring only adler1, adler2, and len2.
+ seq1 and seq2 concatenated, requiring only adler1, adler2, and len2. Note
+ that the z_off_t type (like off_t) is a signed integer. If len2 is
+ negative, the result has no meaning or utility.
*/
ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len));
/*
Update a running CRC-32 with the bytes buf[0..len-1] and return the
updated CRC-32. If buf is Z_NULL, this function returns the required
- initial value for the for the crc. Pre- and post-conditioning (one's
- complement) is performed within this function so it shouldn't be done by the
- application.
+ initial value for the crc. Pre- and post-conditioning (one's complement) is
+ performed within this function so it shouldn't be done by the application.
Usage example:
@@ -1517,6 +1743,12 @@ ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len));
if (crc != original_crc) error();
*/
+ZEXTERN uLong ZEXPORT crc32_z OF((uLong adler, const Bytef *buf,
+ z_size_t len));
+/*
+ Same as crc32(), but with a size_t length.
+*/
+
/*
ZEXTERN uLong ZEXPORT crc32_combine OF((uLong crc1, uLong crc2, z_off_t len2));
@@ -1547,18 +1779,59 @@ ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits,
unsigned char FAR *window,
const char *version,
int stream_size));
-#define deflateInit(strm, level) \
- deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream))
-#define inflateInit(strm) \
- inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream))
-#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \
- deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
- (strategy), ZLIB_VERSION, sizeof(z_stream))
-#define inflateInit2(strm, windowBits) \
- inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream))
-#define inflateBackInit(strm, windowBits, window) \
- inflateBackInit_((strm), (windowBits), (window), \
- ZLIB_VERSION, sizeof(z_stream))
+#ifdef Z_PREFIX_SET
+# define z_deflateInit(strm, level) \
+ deflateInit_((strm), (level), ZLIB_VERSION, (int)sizeof(z_stream))
+# define z_inflateInit(strm) \
+ inflateInit_((strm), ZLIB_VERSION, (int)sizeof(z_stream))
+# define z_deflateInit2(strm, level, method, windowBits, memLevel, strategy) \
+ deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
+ (strategy), ZLIB_VERSION, (int)sizeof(z_stream))
+# define z_inflateInit2(strm, windowBits) \
+ inflateInit2_((strm), (windowBits), ZLIB_VERSION, \
+ (int)sizeof(z_stream))
+# define z_inflateBackInit(strm, windowBits, window) \
+ inflateBackInit_((strm), (windowBits), (window), \
+ ZLIB_VERSION, (int)sizeof(z_stream))
+#else
+# define deflateInit(strm, level) \
+ deflateInit_((strm), (level), ZLIB_VERSION, (int)sizeof(z_stream))
+# define inflateInit(strm) \
+ inflateInit_((strm), ZLIB_VERSION, (int)sizeof(z_stream))
+# define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \
+ deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
+ (strategy), ZLIB_VERSION, (int)sizeof(z_stream))
+# define inflateInit2(strm, windowBits) \
+ inflateInit2_((strm), (windowBits), ZLIB_VERSION, \
+ (int)sizeof(z_stream))
+# define inflateBackInit(strm, windowBits, window) \
+ inflateBackInit_((strm), (windowBits), (window), \
+ ZLIB_VERSION, (int)sizeof(z_stream))
+#endif
+
+#ifndef Z_SOLO
+
+/* gzgetc() macro and its supporting function and exposed data structure. Note
+ * that the real internal state is much larger than the exposed structure.
+ * This abbreviated structure exposes just enough for the gzgetc() macro. The
+ * user should not mess with these exposed elements, since their names or
+ * behavior could change in the future, perhaps even capriciously. They can
+ * only be used by the gzgetc() macro. You have been warned.
+ */
+struct gzFile_s {
+ unsigned have;
+ unsigned char *next;
+ z_off64_t pos;
+};
+ZEXTERN int ZEXPORT gzgetc_ OF((gzFile file)); /* backward compatibility */
+#ifdef Z_PREFIX_SET
+# undef z_gzgetc
+# define z_gzgetc(g) \
+ ((g)->have ? ((g)->have--, (g)->pos++, *((g)->next)++) : (gzgetc)(g))
+#else
+# define gzgetc(g) \
+ ((g)->have ? ((g)->have--, (g)->pos++, *((g)->next)++) : (gzgetc)(g))
+#endif
/* provide 64-bit offset functions if _LARGEFILE64_SOURCE defined, and/or
* change the regular functions to 64 bits if _FILE_OFFSET_BITS is 64 (if
@@ -1566,7 +1839,7 @@ ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits,
* functions are changed to 64 bits) -- in case these are set on systems
* without large file support, _LFS64_LARGEFILE must also be true
*/
-#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
+#ifdef Z_LARGE64
ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *));
ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, int));
ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile));
@@ -1575,14 +1848,23 @@ ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits,
ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off64_t));
#endif
-#if !defined(ZLIB_INTERNAL) && _FILE_OFFSET_BITS-0 == 64 && _LFS64_LARGEFILE-0
-# define gzopen gzopen64
-# define gzseek gzseek64
-# define gztell gztell64
-# define gzoffset gzoffset64
-# define adler32_combine adler32_combine64
-# define crc32_combine crc32_combine64
-# ifdef _LARGEFILE64_SOURCE
+#if !defined(ZLIB_INTERNAL) && defined(Z_WANT64)
+# ifdef Z_PREFIX_SET
+# define z_gzopen z_gzopen64
+# define z_gzseek z_gzseek64
+# define z_gztell z_gztell64
+# define z_gzoffset z_gzoffset64
+# define z_adler32_combine z_adler32_combine64
+# define z_crc32_combine z_crc32_combine64
+# else
+# define gzopen gzopen64
+# define gzseek gzseek64
+# define gztell gztell64
+# define gzoffset gzoffset64
+# define adler32_combine adler32_combine64
+# define crc32_combine crc32_combine64
+# endif
+# ifndef Z_LARGE64
ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *));
ZEXTERN z_off_t ZEXPORT gzseek64 OF((gzFile, z_off_t, int));
ZEXTERN z_off_t ZEXPORT gztell64 OF((gzFile));
@@ -1599,16 +1881,33 @@ ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits,
ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t));
#endif
-/* hack for buggy compilers */
-#if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL)
- struct internal_state {int dummy;};
-#endif
+#else /* Z_SOLO */
+
+ ZEXTERN uLong ZEXPORT adler32_combine OF((uLong, uLong, z_off_t));
+ ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t));
+
+#endif /* !Z_SOLO */
/* undocumented functions */
ZEXTERN const char * ZEXPORT zError OF((int));
ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp));
-ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void));
+ZEXTERN const z_crc_t FAR * ZEXPORT get_crc_table OF((void));
ZEXTERN int ZEXPORT inflateUndermine OF((z_streamp, int));
+ZEXTERN int ZEXPORT inflateValidate OF((z_streamp, int));
+ZEXTERN unsigned long ZEXPORT inflateCodesUsed OF ((z_streamp));
+ZEXTERN int ZEXPORT inflateResetKeep OF((z_streamp));
+ZEXTERN int ZEXPORT deflateResetKeep OF((z_streamp));
+#if (defined(_WIN32) || defined(__CYGWIN__)) && !defined(Z_SOLO)
+ZEXTERN gzFile ZEXPORT gzopen_w OF((const wchar_t *path,
+ const char *mode));
+#endif
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+# ifndef Z_SOLO
+ZEXTERN int ZEXPORTVA gzvprintf Z_ARG((gzFile file,
+ const char *format,
+ va_list va));
+# endif
+#endif
#ifdef __cplusplus
}
diff --git a/src/3rdparty/zlib/zutil.c b/src/3rdparty/zlib/src/zutil.c
index 3418c5999f..a76c6b0c7e 100644
--- a/src/3rdparty/zlib/zutil.c
+++ b/src/3rdparty/zlib/src/zutil.c
@@ -1,27 +1,27 @@
/* zutil.c -- target dependent utility functions for the compression library
- * Copyright (C) 1995-2005, 2010 Jean-loup Gailly.
+ * Copyright (C) 1995-2017 Jean-loup Gailly
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* @(#) $Id$ */
#include "zutil.h"
-
-#ifndef NO_DUMMY_DECL
-struct internal_state {int dummy;}; /* for buggy compilers */
+#ifndef Z_SOLO
+# include "gzguts.h"
#endif
-const char * const z_errmsg[10] = {
-"need dictionary", /* Z_NEED_DICT 2 */
-"stream end", /* Z_STREAM_END 1 */
-"", /* Z_OK 0 */
-"file error", /* Z_ERRNO (-1) */
-"stream error", /* Z_STREAM_ERROR (-2) */
-"data error", /* Z_DATA_ERROR (-3) */
-"insufficient memory", /* Z_MEM_ERROR (-4) */
-"buffer error", /* Z_BUF_ERROR (-5) */
-"incompatible version",/* Z_VERSION_ERROR (-6) */
-""};
+z_const char * const z_errmsg[10] = {
+ (z_const char *)"need dictionary", /* Z_NEED_DICT 2 */
+ (z_const char *)"stream end", /* Z_STREAM_END 1 */
+ (z_const char *)"", /* Z_OK 0 */
+ (z_const char *)"file error", /* Z_ERRNO (-1) */
+ (z_const char *)"stream error", /* Z_STREAM_ERROR (-2) */
+ (z_const char *)"data error", /* Z_DATA_ERROR (-3) */
+ (z_const char *)"insufficient memory", /* Z_MEM_ERROR (-4) */
+ (z_const char *)"buffer error", /* Z_BUF_ERROR (-5) */
+ (z_const char *)"incompatible version",/* Z_VERSION_ERROR (-6) */
+ (z_const char *)""
+};
const char * ZEXPORT zlibVersion()
@@ -58,7 +58,7 @@ uLong ZEXPORT zlibCompileFlags()
case 8: flags += 2 << 6; break;
default: flags += 3 << 6;
}
-#ifdef DEBUG
+#ifdef ZLIB_DEBUG
flags += 1 << 8;
#endif
#if defined(ASMV) || defined(ASMINF)
@@ -85,35 +85,35 @@ uLong ZEXPORT zlibCompileFlags()
#ifdef FASTEST
flags += 1L << 21;
#endif
-#ifdef STDC
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
# ifdef NO_vsnprintf
- flags += 1L << 25;
+ flags += 1L << 25;
# ifdef HAS_vsprintf_void
- flags += 1L << 26;
+ flags += 1L << 26;
# endif
# else
# ifdef HAS_vsnprintf_void
- flags += 1L << 26;
+ flags += 1L << 26;
# endif
# endif
#else
- flags += 1L << 24;
+ flags += 1L << 24;
# ifdef NO_snprintf
- flags += 1L << 25;
+ flags += 1L << 25;
# ifdef HAS_sprintf_void
- flags += 1L << 26;
+ flags += 1L << 26;
# endif
# else
# ifdef HAS_snprintf_void
- flags += 1L << 26;
+ flags += 1L << 26;
# endif
# endif
#endif
return flags;
}
-#ifdef DEBUG
-
+#ifdef ZLIB_DEBUG
+#include <stdlib.h>
# ifndef verbose
# define verbose 0
# endif
@@ -136,6 +136,14 @@ const char * ZEXPORT zError(err)
return ERR_MSG(err);
}
+#if defined(_WIN32_WCE)
+ /* The Microsoft C Run-Time Library for Windows CE doesn't have
+ * errno. We define it as a global variable to simplify porting.
+ * Its value is always 0 and should not be used.
+ */
+ int errno = 0;
+#endif
+
#ifndef HAVE_MEMCPY
void ZLIB_INTERNAL zmemcpy(dest, source, len)
@@ -173,6 +181,7 @@ void ZLIB_INTERNAL zmemzero(dest, len)
}
#endif
+#ifndef Z_SOLO
#ifdef SYS16BIT
@@ -207,9 +216,11 @@ local ptr_table table[MAX_PTR];
voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, unsigned items, unsigned size)
{
- voidpf buf = opaque; /* just to make some compilers happy */
+ voidpf buf;
ulg bsize = (ulg)items*size;
+ (void)opaque;
+
/* If we allocate less than 65520 bytes, we assume that farmalloc
* will return a usable pointer which doesn't have to be normalized.
*/
@@ -232,6 +243,9 @@ voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, unsigned items, unsigned size)
void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
{
int n;
+
+ (void)opaque;
+
if (*(ush*)&ptr != 0) { /* object < 64K */
farfree(ptr);
return;
@@ -247,7 +261,6 @@ void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
next_ptr--;
return;
}
- ptr = opaque; /* just to make some compilers happy */
Assert(0, "zcfree: ptr not found");
}
@@ -266,13 +279,13 @@ void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, uInt items, uInt size)
{
- if (opaque) opaque = 0; /* to make compiler happy */
+ (void)opaque;
return _halloc((long)items, size);
}
void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
{
- if (opaque) opaque = 0; /* to make compiler happy */
+ (void)opaque;
_hfree(ptr);
}
@@ -294,7 +307,7 @@ voidpf ZLIB_INTERNAL zcalloc (opaque, items, size)
unsigned items;
unsigned size;
{
- if (opaque) items += size - size; /* make compiler happy */
+ (void)opaque;
return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) :
(voidpf)calloc(items, size);
}
@@ -303,8 +316,10 @@ void ZLIB_INTERNAL zcfree (opaque, ptr)
voidpf opaque;
voidpf ptr;
{
+ (void)opaque;
free(ptr);
- if (opaque) return; /* make compiler happy */
}
#endif /* MY_ZCALLOC */
+
+#endif /* !Z_SOLO */
diff --git a/src/3rdparty/zlib/zutil.h b/src/3rdparty/zlib/src/zutil.h
index 881a7ecb3f..38066137fc 100644
--- a/src/3rdparty/zlib/zutil.h
+++ b/src/3rdparty/zlib/src/zutil.h
@@ -1,5 +1,5 @@
/* zutil.h -- internal interface and configuration of the compression library
- * Copyright (C) 1995-2010 Jean-loup Gailly.
+ * Copyright (C) 1995-2016 Jean-loup Gailly, Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -16,7 +16,13 @@
#ifndef QT_BOOTSTRAPPED
# include <qconfig.h>
#endif
-#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ) && defined(QT_VISIBILITY_AVAILABLE)
+
+#ifdef QT_VISIBILITY_AVAILABLE
+#define HAVE_HIDDEN
+#endif
+
+
+#ifdef HAVE_HIDDEN
# define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
#else
# define ZLIB_INTERNAL
@@ -24,7 +30,7 @@
#include "zlib.h"
-#ifdef STDC
+#if defined(STDC) && !defined(Z_SOLO)
# if !(defined(_WIN32_WCE) && defined(_MSC_VER))
# include <stddef.h>
# endif
@@ -32,10 +38,16 @@
# include <stdlib.h>
#endif
+#ifdef Z_SOLO
+ typedef long ptrdiff_t; /* guess -- will be caught if guess is wrong */
+#endif
+
#ifndef local
# define local static
#endif
-/* compile with -Dlocal if your debugger can't find static symbols */
+/* since "static" is used to mean two completely different things in C, we
+ define "local" for the non-static meaning of "static", for readability
+ (compile with -Dlocal if your debugger can't find static symbols) */
typedef unsigned char uch;
typedef uch FAR uchf;
@@ -43,13 +55,13 @@ typedef unsigned short ush;
typedef ush FAR ushf;
typedef unsigned long ulg;
-extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
+extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
/* (size given to avoid silly warnings with Visual C++) */
#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
#define ERR_RETURN(strm,err) \
- return (strm->msg = (char*)ERR_MSG(err), (err))
+ return (strm->msg = ERR_MSG(err), (err))
/* To be used only when the state is known to be valid */
/* common constants */
@@ -81,63 +93,88 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
# define OS_CODE 0x00
-# if defined(__TURBOC__) || defined(__BORLANDC__)
-# if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
- /* Allow compilation with ANSI keywords only enabled */
- void _Cdecl farfree( void *block );
- void *_Cdecl farmalloc( unsigned long nbytes );
-# else
-# include <alloc.h>
+# ifndef Z_SOLO
+# if defined(__TURBOC__) || defined(__BORLANDC__)
+# if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
+ /* Allow compilation with ANSI keywords only enabled */
+ void _Cdecl farfree( void *block );
+ void *_Cdecl farmalloc( unsigned long nbytes );
+# else
+# include <alloc.h>
+# endif
+# else /* MSC or DJGPP */
+# include <malloc.h>
# endif
-# else /* MSC or DJGPP */
-# include <malloc.h>
# endif
#endif
#ifdef AMIGA
-# define OS_CODE 0x01
+# define OS_CODE 1
#endif
#if defined(VAXC) || defined(VMS)
-# define OS_CODE 0x02
+# define OS_CODE 2
# define F_OPEN(name, mode) \
fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
#endif
+#ifdef __370__
+# if __TARGET_LIB__ < 0x20000000
+# define OS_CODE 4
+# elif __TARGET_LIB__ < 0x40000000
+# define OS_CODE 11
+# else
+# define OS_CODE 8
+# endif
+#endif
+
#if defined(ATARI) || defined(atarist)
-# define OS_CODE 0x05
+# define OS_CODE 5
#endif
#ifdef OS2
-# define OS_CODE 0x06
-# ifdef M_I86
+# define OS_CODE 6
+# if defined(M_I86) && !defined(Z_SOLO)
# include <malloc.h>
# endif
#endif
#if defined(MACOS) || defined(TARGET_OS_MAC)
-# define OS_CODE 0x07
-# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
-# include <unix.h> /* for fdopen */
-# else
-# ifndef fdopen
-# define fdopen(fd,mode) NULL /* No fdopen() */
+# define OS_CODE 7
+# ifndef Z_SOLO
+# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
+# include <unix.h> /* for fdopen */
+# else
+// We need to include stdio.h here because zlib.h will include TargetConditionals.h
+// This will define TARGET_OS_MAC that leads to this check.
+// Since zutil.h will include gzguts.h and gzguts.h includes stdio.h
+// AFTER check for fdopen we need to include stdio.h directly
+# include <stdio.h>
+# ifndef fdopen
+# define fdopen(fd,mode) NULL /* No fdopen() */
+# endif
# endif
# endif
#endif
-#ifdef TOPS20
-# define OS_CODE 0x0a
+#ifdef __acorn
+# define OS_CODE 13
#endif
-#ifdef WIN32
-# ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */
-# define OS_CODE 0x0b
-# endif
+#if defined(WIN32) && !defined(__CYGWIN__)
+# define OS_CODE 10
+#endif
+
+#ifdef _BEOS_
+# define OS_CODE 16
#endif
-#ifdef __50SERIES /* Prime/PRIMOS */
-# define OS_CODE 0x0f
+#ifdef __TOS_OS400__
+# define OS_CODE 18
+#endif
+
+#if defined(__APPLE__) && !defined(OS_CODE)
+# define OS_CODE 19
#endif
#if defined(_BEOS_) || defined(RISCOS)
@@ -145,7 +182,7 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
#endif
#if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX
-# if defined(_WIN32_WCE) && _WIN32_WCE < 0x800
+# if defined(_WIN32_WCE)
# define fdopen(fd,mode) NULL /* No fdopen() */
# ifndef _PTRDIFF_T_DEFINED
typedef int ptrdiff_t;
@@ -156,14 +193,15 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
# endif
#endif
-#if defined(__BORLANDC__)
+#if defined(__BORLANDC__) && !defined(MSDOS)
#pragma warn -8004
#pragma warn -8008
#pragma warn -8066
#endif
/* provide prototypes for these when building zlib without LFS */
-#if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0
+#if !defined(_WIN32) && \
+ (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0)
ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
#endif
@@ -171,7 +209,7 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
/* common defaults */
#ifndef OS_CODE
-# define OS_CODE 0x03 /* assume Unix */
+# define OS_CODE 3 /* assume Unix */
#endif
#ifndef F_OPEN
@@ -180,42 +218,7 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
/* functions */
-#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
-# ifndef HAVE_VSNPRINTF
-# define HAVE_VSNPRINTF
-# endif
-#endif
-#if defined(__CYGWIN__)
-# ifndef HAVE_VSNPRINTF
-# define HAVE_VSNPRINTF
-# endif
-#endif
-#ifndef HAVE_VSNPRINTF
-# ifdef MSDOS
- /* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
- but for now we just assume it doesn't. */
-# define NO_vsnprintf
-# endif
-# ifdef __TURBOC__
-# define NO_vsnprintf
-# endif
-# ifdef WIN32
- /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
-# if !defined(vsnprintf) && !defined(NO_vsnprintf)
-# if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )
-# define vsnprintf _vsnprintf
-# endif
-# endif
-# endif
-# ifdef __SASC
-# define NO_vsnprintf
-# endif
-#endif
-#ifdef VMS
-# define NO_vsnprintf
-#endif
-
-#if defined(pyr)
+#if defined(pyr) || defined(Z_SOLO)
# define NO_MEMCPY
#endif
#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
@@ -245,7 +248,7 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
#endif
/* Diagnostic functions */
-#ifdef DEBUG
+#ifdef ZLIB_DEBUG
# include <stdio.h>
extern int ZLIB_INTERNAL z_verbose;
extern void ZLIB_INTERNAL z_error OF((char *m));
@@ -264,14 +267,19 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
# define Tracecv(c,x)
#endif
-
-voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
- unsigned size));
-void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr));
+#ifndef Z_SOLO
+ voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
+ unsigned size));
+ void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr));
+#endif
#define ZALLOC(strm, items, size) \
(*((strm)->zalloc))((strm)->opaque, (items), (size))
#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
+/* Reverse the bytes in a 32-bit value */
+#define ZSWAP32(q) ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \
+ (((q) & 0xff00) << 8) + (((q) & 0xff) << 24))
+
#endif /* ZUTIL_H */
diff --git a/src/3rdparty/zlib/treebuild.xml b/src/3rdparty/zlib/treebuild.xml
deleted file mode 100644
index 6b8f5428d4..0000000000
--- a/src/3rdparty/zlib/treebuild.xml
+++ /dev/null
@@ -1,116 +0,0 @@
-<?xml version="1.0" ?>
-<package name="zlib" version="1.2.5">
- <library name="zlib" dlversion="1.2.5" dlname="z">
- <property name="description"> zip compression library </property>
- <property name="include-target-dir" value="$(@PACKAGE/install-includedir)" />
-
- <!-- fixme: not implemented yet -->
- <property name="compiler/c/inline" value="yes" />
-
- <include-file name="zlib.h" scope="public" mode="644" />
- <include-file name="zconf.h" scope="public" mode="644" />
-
- <source name="adler32.c">
- <depend name="zlib.h" />
- <depend name="zconf.h" />
- </source>
- <source name="compress.c">
- <depend name="zlib.h" />
- <depend name="zconf.h" />
- </source>
- <source name="crc32.c">
- <depend name="zlib.h" />
- <depend name="zconf.h" />
- <depend name="crc32.h" />
- </source>
- <source name="gzclose.c">
- <depend name="zlib.h" />
- <depend name="zconf.h" />
- <depend name="gzguts.h" />
- </source>
- <source name="gzlib.c">
- <depend name="zlib.h" />
- <depend name="zconf.h" />
- <depend name="gzguts.h" />
- </source>
- <source name="gzread.c">
- <depend name="zlib.h" />
- <depend name="zconf.h" />
- <depend name="gzguts.h" />
- </source>
- <source name="gzwrite.c">
- <depend name="zlib.h" />
- <depend name="zconf.h" />
- <depend name="gzguts.h" />
- </source>
- <source name="uncompr.c">
- <depend name="zlib.h" />
- <depend name="zconf.h" />
- </source>
- <source name="deflate.c">
- <depend name="zlib.h" />
- <depend name="zconf.h" />
- <depend name="zutil.h" />
- <depend name="deflate.h" />
- </source>
- <source name="trees.c">
- <depend name="zlib.h" />
- <depend name="zconf.h" />
- <depend name="zutil.h" />
- <depend name="deflate.h" />
- <depend name="trees.h" />
- </source>
- <source name="zutil.c">
- <depend name="zlib.h" />
- <depend name="zconf.h" />
- <depend name="zutil.h" />
- </source>
- <source name="inflate.c">
- <depend name="zlib.h" />
- <depend name="zconf.h" />
- <depend name="zutil.h" />
- <depend name="inftrees.h" />
- <depend name="inflate.h" />
- <depend name="inffast.h" />
- </source>
- <source name="infback.c">
- <depend name="zlib.h" />
- <depend name="zconf.h" />
- <depend name="zutil.h" />
- <depend name="inftrees.h" />
- <depend name="inflate.h" />
- <depend name="inffast.h" />
- </source>
- <source name="inftrees.c">
- <depend name="zlib.h" />
- <depend name="zconf.h" />
- <depend name="zutil.h" />
- <depend name="inftrees.h" />
- </source>
- <source name="inffast.c">
- <depend name="zlib.h" />
- <depend name="zconf.h" />
- <depend name="zutil.h" />
- <depend name="inftrees.h" />
- <depend name="inflate.h" />
- <depend name="inffast.h" />
- </source>
- </library>
-</package>
-
-<!--
-CFLAGS=-O
-#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
-#CFLAGS=-g -DDEBUG
-#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
-# -Wstrict-prototypes -Wmissing-prototypes
-
-# OBJA =
-# to use the asm code: make OBJA=match.o
-#
-match.o: match.S
- $(CPP) match.S > _match.s
- $(CC) -c _match.s
- mv _match.o match.o
- rm -f _match.s
--->
diff --git a/src/3rdparty/zlib/uncompr.c b/src/3rdparty/zlib/uncompr.c
deleted file mode 100644
index ad98be3a5d..0000000000
--- a/src/3rdparty/zlib/uncompr.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/* uncompr.c -- decompress a memory buffer
- * Copyright (C) 1995-2003, 2010 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id$ */
-
-#define ZLIB_INTERNAL
-#include "zlib.h"
-
-/* ===========================================================================
- Decompresses the source buffer into the destination buffer. sourceLen is
- the byte length of the source buffer. Upon entry, destLen is the total
- size of the destination buffer, which must be large enough to hold the
- entire uncompressed data. (The size of the uncompressed data must have
- been saved previously by the compressor and transmitted to the decompressor
- by some mechanism outside the scope of this compression library.)
- Upon exit, destLen is the actual size of the compressed buffer.
-
- uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
- enough memory, Z_BUF_ERROR if there was not enough room in the output
- buffer, or Z_DATA_ERROR if the input data was corrupted.
-*/
-int ZEXPORT uncompress (dest, destLen, source, sourceLen)
- Bytef *dest;
- uLongf *destLen;
- const Bytef *source;
- uLong sourceLen;
-{
- z_stream stream;
- int err;
-
- stream.next_in = (Bytef*)source;
- stream.avail_in = (uInt)sourceLen;
- /* Check for source > 64K on 16-bit machine: */
- if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;
-
- stream.next_out = dest;
- stream.avail_out = (uInt)*destLen;
- if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR;
-
- stream.zalloc = (alloc_func)0;
- stream.zfree = (free_func)0;
-
- err = inflateInit(&stream);
- if (err != Z_OK) return err;
-
- err = inflate(&stream, Z_FINISH);
- if (err != Z_STREAM_END) {
- inflateEnd(&stream);
- if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0))
- return Z_DATA_ERROR;
- return err;
- }
- *destLen = stream.total_out;
-
- err = inflateEnd(&stream);
- return err;
-}
diff --git a/src/3rdparty/zlib/zconf.h.cmakein b/src/3rdparty/zlib/zconf.h.cmakein
deleted file mode 100644
index a2f71b1f32..0000000000
--- a/src/3rdparty/zlib/zconf.h.cmakein
+++ /dev/null
@@ -1,430 +0,0 @@
-/* zconf.h -- configuration of the zlib compression library
- * Copyright (C) 1995-2010 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id$ */
-
-#ifndef ZCONF_H
-#define ZCONF_H
-#cmakedefine Z_PREFIX
-#cmakedefine Z_HAVE_UNISTD_H
-
-/*
- * If you *really* need a unique prefix for all types and library functions,
- * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
- * Even better than compiling with -DZ_PREFIX would be to use configure to set
- * this permanently in zconf.h using "./configure --zprefix".
- */
-#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */
-
-/* all linked symbols */
-# define _dist_code z__dist_code
-# define _length_code z__length_code
-# define _tr_align z__tr_align
-# define _tr_flush_block z__tr_flush_block
-# define _tr_init z__tr_init
-# define _tr_stored_block z__tr_stored_block
-# define _tr_tally z__tr_tally
-# define adler32 z_adler32
-# define adler32_combine z_adler32_combine
-# define adler32_combine64 z_adler32_combine64
-# define compress z_compress
-# define compress2 z_compress2
-# define compressBound z_compressBound
-# define crc32 z_crc32
-# define crc32_combine z_crc32_combine
-# define crc32_combine64 z_crc32_combine64
-# define deflate z_deflate
-# define deflateBound z_deflateBound
-# define deflateCopy z_deflateCopy
-# define deflateEnd z_deflateEnd
-# define deflateInit2_ z_deflateInit2_
-# define deflateInit_ z_deflateInit_
-# define deflateParams z_deflateParams
-# define deflatePrime z_deflatePrime
-# define deflateReset z_deflateReset
-# define deflateSetDictionary z_deflateSetDictionary
-# define deflateSetHeader z_deflateSetHeader
-# define deflateTune z_deflateTune
-# define deflate_copyright z_deflate_copyright
-# define get_crc_table z_get_crc_table
-# define gz_error z_gz_error
-# define gz_intmax z_gz_intmax
-# define gz_strwinerror z_gz_strwinerror
-# define gzbuffer z_gzbuffer
-# define gzclearerr z_gzclearerr
-# define gzclose z_gzclose
-# define gzclose_r z_gzclose_r
-# define gzclose_w z_gzclose_w
-# define gzdirect z_gzdirect
-# define gzdopen z_gzdopen
-# define gzeof z_gzeof
-# define gzerror z_gzerror
-# define gzflush z_gzflush
-# define gzgetc z_gzgetc
-# define gzgets z_gzgets
-# define gzoffset z_gzoffset
-# define gzoffset64 z_gzoffset64
-# define gzopen z_gzopen
-# define gzopen64 z_gzopen64
-# define gzprintf z_gzprintf
-# define gzputc z_gzputc
-# define gzputs z_gzputs
-# define gzread z_gzread
-# define gzrewind z_gzrewind
-# define gzseek z_gzseek
-# define gzseek64 z_gzseek64
-# define gzsetparams z_gzsetparams
-# define gztell z_gztell
-# define gztell64 z_gztell64
-# define gzungetc z_gzungetc
-# define gzwrite z_gzwrite
-# define inflate z_inflate
-# define inflateBack z_inflateBack
-# define inflateBackEnd z_inflateBackEnd
-# define inflateBackInit_ z_inflateBackInit_
-# define inflateCopy z_inflateCopy
-# define inflateEnd z_inflateEnd
-# define inflateGetHeader z_inflateGetHeader
-# define inflateInit2_ z_inflateInit2_
-# define inflateInit_ z_inflateInit_
-# define inflateMark z_inflateMark
-# define inflatePrime z_inflatePrime
-# define inflateReset z_inflateReset
-# define inflateReset2 z_inflateReset2
-# define inflateSetDictionary z_inflateSetDictionary
-# define inflateSync z_inflateSync
-# define inflateSyncPoint z_inflateSyncPoint
-# define inflateUndermine z_inflateUndermine
-# define inflate_copyright z_inflate_copyright
-# define inflate_fast z_inflate_fast
-# define inflate_table z_inflate_table
-# define uncompress z_uncompress
-# define zError z_zError
-# define zcalloc z_zcalloc
-# define zcfree z_zcfree
-# define zlibCompileFlags z_zlibCompileFlags
-# define zlibVersion z_zlibVersion
-
-/* all zlib typedefs in zlib.h and zconf.h */
-# define Byte z_Byte
-# define Bytef z_Bytef
-# define alloc_func z_alloc_func
-# define charf z_charf
-# define free_func z_free_func
-# define gzFile z_gzFile
-# define gz_header z_gz_header
-# define gz_headerp z_gz_headerp
-# define in_func z_in_func
-# define intf z_intf
-# define out_func z_out_func
-# define uInt z_uInt
-# define uIntf z_uIntf
-# define uLong z_uLong
-# define uLongf z_uLongf
-# define voidp z_voidp
-# define voidpc z_voidpc
-# define voidpf z_voidpf
-
-/* all zlib structs in zlib.h and zconf.h */
-# define gz_header_s z_gz_header_s
-# define internal_state z_internal_state
-
-#endif
-
-#if defined(__MSDOS__) && !defined(MSDOS)
-# define MSDOS
-#endif
-#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
-# define OS2
-#endif
-#if defined(_WINDOWS) && !defined(WINDOWS)
-# define WINDOWS
-#endif
-#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__)
-# ifndef WIN32
-# define WIN32
-# endif
-#endif
-#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
-# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
-# ifndef SYS16BIT
-# define SYS16BIT
-# endif
-# endif
-#endif
-
-/*
- * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
- * than 64k bytes at a time (needed on systems with 16-bit int).
- */
-#ifdef SYS16BIT
-# define MAXSEG_64K
-#endif
-#ifdef MSDOS
-# define UNALIGNED_OK
-#endif
-
-#ifdef __STDC_VERSION__
-# ifndef STDC
-# define STDC
-# endif
-# if __STDC_VERSION__ >= 199901L
-# ifndef STDC99
-# define STDC99
-# endif
-# endif
-#endif
-#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
-# define STDC
-#endif
-#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
-# define STDC
-#endif
-#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
-# define STDC
-#endif
-#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
-# define STDC
-#endif
-
-#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */
-# define STDC
-#endif
-
-#ifndef STDC
-# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
-# define const /* note: need a more gentle solution here */
-# endif
-#endif
-
-/* Some Mac compilers merge all .h files incorrectly: */
-#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__)
-# define NO_DUMMY_DECL
-#endif
-
-/* Maximum value for memLevel in deflateInit2 */
-#ifndef MAX_MEM_LEVEL
-# ifdef MAXSEG_64K
-# define MAX_MEM_LEVEL 8
-# else
-# define MAX_MEM_LEVEL 9
-# endif
-#endif
-
-/* Maximum value for windowBits in deflateInit2 and inflateInit2.
- * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
- * created by gzip. (Files created by minigzip can still be extracted by
- * gzip.)
- */
-#ifndef MAX_WBITS
-# define MAX_WBITS 15 /* 32K LZ77 window */
-#endif
-
-/* The memory requirements for deflate are (in bytes):
- (1 << (windowBits+2)) + (1 << (memLevel+9))
- that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values)
- plus a few kilobytes for small objects. For example, if you want to reduce
- the default memory requirements from 256K to 128K, compile with
- make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
- Of course this will generally degrade compression (there's no free lunch).
-
- The memory requirements for inflate are (in bytes) 1 << windowBits
- that is, 32K for windowBits=15 (default value) plus a few kilobytes
- for small objects.
-*/
-
- /* Type declarations */
-
-#ifndef OF /* function prototypes */
-# ifdef STDC
-# define OF(args) args
-# else
-# define OF(args) ()
-# endif
-#endif
-
-/* The following definitions for FAR are needed only for MSDOS mixed
- * model programming (small or medium model with some far allocations).
- * This was tested only with MSC; for other MSDOS compilers you may have
- * to define NO_MEMCPY in zutil.h. If you don't need the mixed model,
- * just define FAR to be empty.
- */
-#ifdef SYS16BIT
-# if defined(M_I86SM) || defined(M_I86MM)
- /* MSC small or medium model */
-# define SMALL_MEDIUM
-# ifdef _MSC_VER
-# define FAR _far
-# else
-# define FAR far
-# endif
-# endif
-# if (defined(__SMALL__) || defined(__MEDIUM__))
- /* Turbo C small or medium model */
-# define SMALL_MEDIUM
-# ifdef __BORLANDC__
-# define FAR _far
-# else
-# define FAR far
-# endif
-# endif
-#endif
-
-#if defined(WINDOWS) || defined(WIN32)
- /* If building or using zlib as a DLL, define ZLIB_DLL.
- * This is not mandatory, but it offers a little performance increase.
- */
-# ifdef ZLIB_DLL
-# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
-# ifdef ZLIB_INTERNAL
-# define ZEXTERN extern __declspec(dllexport)
-# else
-# define ZEXTERN extern __declspec(dllimport)
-# endif
-# endif
-# endif /* ZLIB_DLL */
- /* If building or using zlib with the WINAPI/WINAPIV calling convention,
- * define ZLIB_WINAPI.
- * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
- */
-# ifdef ZLIB_WINAPI
-# ifdef FAR
-# undef FAR
-# endif
-# include <windows.h>
- /* No need for _export, use ZLIB.DEF instead. */
- /* For complete Windows compatibility, use WINAPI, not __stdcall. */
-# define ZEXPORT WINAPI
-# ifdef WIN32
-# define ZEXPORTVA WINAPIV
-# else
-# define ZEXPORTVA FAR CDECL
-# endif
-# endif
-#endif
-
-#if defined (__BEOS__)
-# ifdef ZLIB_DLL
-# ifdef ZLIB_INTERNAL
-# define ZEXPORT __declspec(dllexport)
-# define ZEXPORTVA __declspec(dllexport)
-# else
-# define ZEXPORT __declspec(dllimport)
-# define ZEXPORTVA __declspec(dllimport)
-# endif
-# endif
-#endif
-
-#ifndef ZEXTERN
-# define ZEXTERN extern
-#endif
-#ifndef ZEXPORT
-# define ZEXPORT
-#endif
-#ifndef ZEXPORTVA
-# define ZEXPORTVA
-#endif
-
-#ifndef FAR
-# define FAR
-#endif
-
-#if !defined(__MACTYPES__)
-typedef unsigned char Byte; /* 8 bits */
-#endif
-typedef unsigned int uInt; /* 16 bits or more */
-typedef unsigned long uLong; /* 32 bits or more */
-
-#ifdef SMALL_MEDIUM
- /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
-# define Bytef Byte FAR
-#else
- typedef Byte FAR Bytef;
-#endif
-typedef char FAR charf;
-typedef int FAR intf;
-typedef uInt FAR uIntf;
-typedef uLong FAR uLongf;
-
-#ifdef STDC
- typedef void const *voidpc;
- typedef void FAR *voidpf;
- typedef void *voidp;
-#else
- typedef Byte const *voidpc;
- typedef Byte FAR *voidpf;
- typedef Byte *voidp;
-#endif
-
-#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */
-# define Z_HAVE_UNISTD_H
-#endif
-
-#ifdef STDC
-# include <sys/types.h> /* for off_t */
-#endif
-
-/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
- * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even
- * though the former does not conform to the LFS document), but considering
- * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
- * equivalently requesting no 64-bit operations
- */
-#if -_LARGEFILE64_SOURCE - -1 == 1
-# undef _LARGEFILE64_SOURCE
-#endif
-
-#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
-# include <unistd.h> /* for SEEK_* and off_t */
-# ifdef VMS
-# include <unixio.h> /* for off_t */
-# endif
-# ifndef z_off_t
-# define z_off_t off_t
-# endif
-#endif
-
-#ifndef SEEK_SET
-# define SEEK_SET 0 /* Seek from beginning of file. */
-# define SEEK_CUR 1 /* Seek from current position. */
-# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
-#endif
-
-#ifndef z_off_t
-# define z_off_t long
-#endif
-
-#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
-# define z_off64_t off64_t
-#else
-# define z_off64_t z_off_t
-#endif
-
-#if defined(__OS400__)
-# define NO_vsnprintf
-#endif
-
-#if defined(__MVS__)
-# define NO_vsnprintf
-#endif
-
-/* MVS linker does not support external names larger than 8 bytes */
-#if defined(__MVS__)
- #pragma map(deflateInit_,"DEIN")
- #pragma map(deflateInit2_,"DEIN2")
- #pragma map(deflateEnd,"DEEND")
- #pragma map(deflateBound,"DEBND")
- #pragma map(inflateInit_,"ININ")
- #pragma map(inflateInit2_,"ININ2")
- #pragma map(inflateEnd,"INEND")
- #pragma map(inflateSync,"INSY")
- #pragma map(inflateSetDictionary,"INSEDI")
- #pragma map(compressBound,"CMBND")
- #pragma map(inflate_table,"INTABL")
- #pragma map(inflate_fast,"INFA")
- #pragma map(inflate_copyright,"INCOPY")
-#endif
-
-#endif /* ZCONF_H */
diff --git a/src/3rdparty/zlib/zconf.h.in b/src/3rdparty/zlib/zconf.h.in
deleted file mode 100644
index 02ce56c431..0000000000
--- a/src/3rdparty/zlib/zconf.h.in
+++ /dev/null
@@ -1,428 +0,0 @@
-/* zconf.h -- configuration of the zlib compression library
- * Copyright (C) 1995-2010 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id$ */
-
-#ifndef ZCONF_H
-#define ZCONF_H
-
-/*
- * If you *really* need a unique prefix for all types and library functions,
- * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
- * Even better than compiling with -DZ_PREFIX would be to use configure to set
- * this permanently in zconf.h using "./configure --zprefix".
- */
-#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */
-
-/* all linked symbols */
-# define _dist_code z__dist_code
-# define _length_code z__length_code
-# define _tr_align z__tr_align
-# define _tr_flush_block z__tr_flush_block
-# define _tr_init z__tr_init
-# define _tr_stored_block z__tr_stored_block
-# define _tr_tally z__tr_tally
-# define adler32 z_adler32
-# define adler32_combine z_adler32_combine
-# define adler32_combine64 z_adler32_combine64
-# define compress z_compress
-# define compress2 z_compress2
-# define compressBound z_compressBound
-# define crc32 z_crc32
-# define crc32_combine z_crc32_combine
-# define crc32_combine64 z_crc32_combine64
-# define deflate z_deflate
-# define deflateBound z_deflateBound
-# define deflateCopy z_deflateCopy
-# define deflateEnd z_deflateEnd
-# define deflateInit2_ z_deflateInit2_
-# define deflateInit_ z_deflateInit_
-# define deflateParams z_deflateParams
-# define deflatePrime z_deflatePrime
-# define deflateReset z_deflateReset
-# define deflateSetDictionary z_deflateSetDictionary
-# define deflateSetHeader z_deflateSetHeader
-# define deflateTune z_deflateTune
-# define deflate_copyright z_deflate_copyright
-# define get_crc_table z_get_crc_table
-# define gz_error z_gz_error
-# define gz_intmax z_gz_intmax
-# define gz_strwinerror z_gz_strwinerror
-# define gzbuffer z_gzbuffer
-# define gzclearerr z_gzclearerr
-# define gzclose z_gzclose
-# define gzclose_r z_gzclose_r
-# define gzclose_w z_gzclose_w
-# define gzdirect z_gzdirect
-# define gzdopen z_gzdopen
-# define gzeof z_gzeof
-# define gzerror z_gzerror
-# define gzflush z_gzflush
-# define gzgetc z_gzgetc
-# define gzgets z_gzgets
-# define gzoffset z_gzoffset
-# define gzoffset64 z_gzoffset64
-# define gzopen z_gzopen
-# define gzopen64 z_gzopen64
-# define gzprintf z_gzprintf
-# define gzputc z_gzputc
-# define gzputs z_gzputs
-# define gzread z_gzread
-# define gzrewind z_gzrewind
-# define gzseek z_gzseek
-# define gzseek64 z_gzseek64
-# define gzsetparams z_gzsetparams
-# define gztell z_gztell
-# define gztell64 z_gztell64
-# define gzungetc z_gzungetc
-# define gzwrite z_gzwrite
-# define inflate z_inflate
-# define inflateBack z_inflateBack
-# define inflateBackEnd z_inflateBackEnd
-# define inflateBackInit_ z_inflateBackInit_
-# define inflateCopy z_inflateCopy
-# define inflateEnd z_inflateEnd
-# define inflateGetHeader z_inflateGetHeader
-# define inflateInit2_ z_inflateInit2_
-# define inflateInit_ z_inflateInit_
-# define inflateMark z_inflateMark
-# define inflatePrime z_inflatePrime
-# define inflateReset z_inflateReset
-# define inflateReset2 z_inflateReset2
-# define inflateSetDictionary z_inflateSetDictionary
-# define inflateSync z_inflateSync
-# define inflateSyncPoint z_inflateSyncPoint
-# define inflateUndermine z_inflateUndermine
-# define inflate_copyright z_inflate_copyright
-# define inflate_fast z_inflate_fast
-# define inflate_table z_inflate_table
-# define uncompress z_uncompress
-# define zError z_zError
-# define zcalloc z_zcalloc
-# define zcfree z_zcfree
-# define zlibCompileFlags z_zlibCompileFlags
-# define zlibVersion z_zlibVersion
-
-/* all zlib typedefs in zlib.h and zconf.h */
-# define Byte z_Byte
-# define Bytef z_Bytef
-# define alloc_func z_alloc_func
-# define charf z_charf
-# define free_func z_free_func
-# define gzFile z_gzFile
-# define gz_header z_gz_header
-# define gz_headerp z_gz_headerp
-# define in_func z_in_func
-# define intf z_intf
-# define out_func z_out_func
-# define uInt z_uInt
-# define uIntf z_uIntf
-# define uLong z_uLong
-# define uLongf z_uLongf
-# define voidp z_voidp
-# define voidpc z_voidpc
-# define voidpf z_voidpf
-
-/* all zlib structs in zlib.h and zconf.h */
-# define gz_header_s z_gz_header_s
-# define internal_state z_internal_state
-
-#endif
-
-#if defined(__MSDOS__) && !defined(MSDOS)
-# define MSDOS
-#endif
-#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
-# define OS2
-#endif
-#if defined(_WINDOWS) && !defined(WINDOWS)
-# define WINDOWS
-#endif
-#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__)
-# ifndef WIN32
-# define WIN32
-# endif
-#endif
-#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
-# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
-# ifndef SYS16BIT
-# define SYS16BIT
-# endif
-# endif
-#endif
-
-/*
- * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
- * than 64k bytes at a time (needed on systems with 16-bit int).
- */
-#ifdef SYS16BIT
-# define MAXSEG_64K
-#endif
-#ifdef MSDOS
-# define UNALIGNED_OK
-#endif
-
-#ifdef __STDC_VERSION__
-# ifndef STDC
-# define STDC
-# endif
-# if __STDC_VERSION__ >= 199901L
-# ifndef STDC99
-# define STDC99
-# endif
-# endif
-#endif
-#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
-# define STDC
-#endif
-#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
-# define STDC
-#endif
-#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
-# define STDC
-#endif
-#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
-# define STDC
-#endif
-
-#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */
-# define STDC
-#endif
-
-#ifndef STDC
-# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
-# define const /* note: need a more gentle solution here */
-# endif
-#endif
-
-/* Some Mac compilers merge all .h files incorrectly: */
-#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__)
-# define NO_DUMMY_DECL
-#endif
-
-/* Maximum value for memLevel in deflateInit2 */
-#ifndef MAX_MEM_LEVEL
-# ifdef MAXSEG_64K
-# define MAX_MEM_LEVEL 8
-# else
-# define MAX_MEM_LEVEL 9
-# endif
-#endif
-
-/* Maximum value for windowBits in deflateInit2 and inflateInit2.
- * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
- * created by gzip. (Files created by minigzip can still be extracted by
- * gzip.)
- */
-#ifndef MAX_WBITS
-# define MAX_WBITS 15 /* 32K LZ77 window */
-#endif
-
-/* The memory requirements for deflate are (in bytes):
- (1 << (windowBits+2)) + (1 << (memLevel+9))
- that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values)
- plus a few kilobytes for small objects. For example, if you want to reduce
- the default memory requirements from 256K to 128K, compile with
- make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
- Of course this will generally degrade compression (there's no free lunch).
-
- The memory requirements for inflate are (in bytes) 1 << windowBits
- that is, 32K for windowBits=15 (default value) plus a few kilobytes
- for small objects.
-*/
-
- /* Type declarations */
-
-#ifndef OF /* function prototypes */
-# ifdef STDC
-# define OF(args) args
-# else
-# define OF(args) ()
-# endif
-#endif
-
-/* The following definitions for FAR are needed only for MSDOS mixed
- * model programming (small or medium model with some far allocations).
- * This was tested only with MSC; for other MSDOS compilers you may have
- * to define NO_MEMCPY in zutil.h. If you don't need the mixed model,
- * just define FAR to be empty.
- */
-#ifdef SYS16BIT
-# if defined(M_I86SM) || defined(M_I86MM)
- /* MSC small or medium model */
-# define SMALL_MEDIUM
-# ifdef _MSC_VER
-# define FAR _far
-# else
-# define FAR far
-# endif
-# endif
-# if (defined(__SMALL__) || defined(__MEDIUM__))
- /* Turbo C small or medium model */
-# define SMALL_MEDIUM
-# ifdef __BORLANDC__
-# define FAR _far
-# else
-# define FAR far
-# endif
-# endif
-#endif
-
-#if defined(WINDOWS) || defined(WIN32)
- /* If building or using zlib as a DLL, define ZLIB_DLL.
- * This is not mandatory, but it offers a little performance increase.
- */
-# ifdef ZLIB_DLL
-# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
-# ifdef ZLIB_INTERNAL
-# define ZEXTERN extern __declspec(dllexport)
-# else
-# define ZEXTERN extern __declspec(dllimport)
-# endif
-# endif
-# endif /* ZLIB_DLL */
- /* If building or using zlib with the WINAPI/WINAPIV calling convention,
- * define ZLIB_WINAPI.
- * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
- */
-# ifdef ZLIB_WINAPI
-# ifdef FAR
-# undef FAR
-# endif
-# include <windows.h>
- /* No need for _export, use ZLIB.DEF instead. */
- /* For complete Windows compatibility, use WINAPI, not __stdcall. */
-# define ZEXPORT WINAPI
-# ifdef WIN32
-# define ZEXPORTVA WINAPIV
-# else
-# define ZEXPORTVA FAR CDECL
-# endif
-# endif
-#endif
-
-#if defined (__BEOS__)
-# ifdef ZLIB_DLL
-# ifdef ZLIB_INTERNAL
-# define ZEXPORT __declspec(dllexport)
-# define ZEXPORTVA __declspec(dllexport)
-# else
-# define ZEXPORT __declspec(dllimport)
-# define ZEXPORTVA __declspec(dllimport)
-# endif
-# endif
-#endif
-
-#ifndef ZEXTERN
-# define ZEXTERN extern
-#endif
-#ifndef ZEXPORT
-# define ZEXPORT
-#endif
-#ifndef ZEXPORTVA
-# define ZEXPORTVA
-#endif
-
-#ifndef FAR
-# define FAR
-#endif
-
-#if !defined(__MACTYPES__)
-typedef unsigned char Byte; /* 8 bits */
-#endif
-typedef unsigned int uInt; /* 16 bits or more */
-typedef unsigned long uLong; /* 32 bits or more */
-
-#ifdef SMALL_MEDIUM
- /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
-# define Bytef Byte FAR
-#else
- typedef Byte FAR Bytef;
-#endif
-typedef char FAR charf;
-typedef int FAR intf;
-typedef uInt FAR uIntf;
-typedef uLong FAR uLongf;
-
-#ifdef STDC
- typedef void const *voidpc;
- typedef void FAR *voidpf;
- typedef void *voidp;
-#else
- typedef Byte const *voidpc;
- typedef Byte FAR *voidpf;
- typedef Byte *voidp;
-#endif
-
-#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */
-# define Z_HAVE_UNISTD_H
-#endif
-
-#ifdef STDC
-# include <sys/types.h> /* for off_t */
-#endif
-
-/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
- * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even
- * though the former does not conform to the LFS document), but considering
- * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
- * equivalently requesting no 64-bit operations
- */
-#if -_LARGEFILE64_SOURCE - -1 == 1
-# undef _LARGEFILE64_SOURCE
-#endif
-
-#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
-# include <unistd.h> /* for SEEK_* and off_t */
-# ifdef VMS
-# include <unixio.h> /* for off_t */
-# endif
-# ifndef z_off_t
-# define z_off_t off_t
-# endif
-#endif
-
-#ifndef SEEK_SET
-# define SEEK_SET 0 /* Seek from beginning of file. */
-# define SEEK_CUR 1 /* Seek from current position. */
-# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
-#endif
-
-#ifndef z_off_t
-# define z_off_t long
-#endif
-
-#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
-# define z_off64_t off64_t
-#else
-# define z_off64_t z_off_t
-#endif
-
-#if defined(__OS400__)
-# define NO_vsnprintf
-#endif
-
-#if defined(__MVS__)
-# define NO_vsnprintf
-#endif
-
-/* MVS linker does not support external names larger than 8 bytes */
-#if defined(__MVS__)
- #pragma map(deflateInit_,"DEIN")
- #pragma map(deflateInit2_,"DEIN2")
- #pragma map(deflateEnd,"DEEND")
- #pragma map(deflateBound,"DEBND")
- #pragma map(inflateInit_,"ININ")
- #pragma map(inflateInit2_,"ININ2")
- #pragma map(inflateEnd,"INEND")
- #pragma map(inflateSync,"INSY")
- #pragma map(inflateSetDictionary,"INSEDI")
- #pragma map(compressBound,"CMBND")
- #pragma map(inflate_table,"INTABL")
- #pragma map(inflate_fast,"INFA")
- #pragma map(inflate_copyright,"INCOPY")
-#endif
-
-#endif /* ZCONF_H */
diff --git a/src/3rdparty/zlib/zlib.3 b/src/3rdparty/zlib/zlib.3
deleted file mode 100644
index 27adc4cd10..0000000000
--- a/src/3rdparty/zlib/zlib.3
+++ /dev/null
@@ -1,151 +0,0 @@
-.TH ZLIB 3 "19 Apr 2010"
-.SH NAME
-zlib \- compression/decompression library
-.SH SYNOPSIS
-[see
-.I zlib.h
-for full description]
-.SH DESCRIPTION
-The
-.I zlib
-library is a general purpose data compression library.
-The code is thread safe, assuming that the standard library functions
-used are thread safe, such as memory allocation routines.
-It provides in-memory compression and decompression functions,
-including integrity checks of the uncompressed data.
-This version of the library supports only one compression method (deflation)
-but other algorithms may be added later
-with the same stream interface.
-.LP
-Compression can be done in a single step if the buffers are large enough
-or can be done by repeated calls of the compression function.
-In the latter case,
-the application must provide more input and/or consume the output
-(providing more output space) before each call.
-.LP
-The library also supports reading and writing files in
-.IR gzip (1)
-(.gz) format
-with an interface similar to that of stdio.
-.LP
-The library does not install any signal handler.
-The decoder checks the consistency of the compressed data,
-so the library should never crash even in the case of corrupted input.
-.LP
-All functions of the compression library are documented in the file
-.IR zlib.h .
-The distribution source includes examples of use of the library
-in the files
-.I example.c
-and
-.IR minigzip.c,
-as well as other examples in the
-.IR examples/
-directory.
-.LP
-Changes to this version are documented in the file
-.I ChangeLog
-that accompanies the source.
-.LP
-.I zlib
-is available in Java using the java.util.zip package:
-.IP
-http://java.sun.com/developer/technicalArticles/Programming/compression/
-.LP
-A Perl interface to
-.IR zlib ,
-written by Paul Marquess (pmqs@cpan.org),
-is available at CPAN (Comprehensive Perl Archive Network) sites,
-including:
-.IP
-http://search.cpan.org/~pmqs/IO-Compress-Zlib/
-.LP
-A Python interface to
-.IR zlib ,
-written by A.M. Kuchling (amk@magnet.com),
-is available in Python 1.5 and later versions:
-.IP
-http://www.python.org/doc/lib/module-zlib.html
-.LP
-.I zlib
-is built into
-.IR tcl:
-.IP
-http://wiki.tcl.tk/4610
-.LP
-An experimental package to read and write files in .zip format,
-written on top of
-.I zlib
-by Gilles Vollant (info@winimage.com),
-is available at:
-.IP
-http://www.winimage.com/zLibDll/minizip.html
-and also in the
-.I contrib/minizip
-directory of the main
-.I zlib
-source distribution.
-.SH "SEE ALSO"
-The
-.I zlib
-web site can be found at:
-.IP
-http://zlib.net/
-.LP
-The data format used by the zlib library is described by RFC
-(Request for Comments) 1950 to 1952 in the files:
-.IP
-http://www.ietf.org/rfc/rfc1950.txt (for the zlib header and trailer format)
-.br
-http://www.ietf.org/rfc/rfc1951.txt (for the deflate compressed data format)
-.br
-http://www.ietf.org/rfc/rfc1952.txt (for the gzip header and trailer format)
-.LP
-Mark Nelson wrote an article about
-.I zlib
-for the Jan. 1997 issue of Dr. Dobb's Journal;
-a copy of the article is available at:
-.IP
-http://marknelson.us/1997/01/01/zlib-engine/
-.SH "REPORTING PROBLEMS"
-Before reporting a problem,
-please check the
-.I zlib
-web site to verify that you have the latest version of
-.IR zlib ;
-otherwise,
-obtain the latest version and see if the problem still exists.
-Please read the
-.I zlib
-FAQ at:
-.IP
-http://zlib.net/zlib_faq.html
-.LP
-before asking for help.
-Send questions and/or comments to zlib@gzip.org,
-or (for the Windows DLL version) to Gilles Vollant (info@winimage.com).
-.SH AUTHORS
-Version 1.2.5
-Copyright (C) 1995-2010 Jean-loup Gailly (jloup@gzip.org)
-and Mark Adler (madler@alumni.caltech.edu).
-.LP
-This software is provided "as-is,"
-without any express or implied warranty.
-In no event will the authors be held liable for any damages
-arising from the use of this software.
-See the distribution directory with respect to requirements
-governing redistribution.
-The deflate format used by
-.I zlib
-was defined by Phil Katz.
-The deflate and
-.I zlib
-specifications were written by L. Peter Deutsch.
-Thanks to all the people who reported problems and suggested various
-improvements in
-.IR zlib ;
-who are too numerous to cite here.
-.LP
-UNIX manual page by R. P. C. Rodgers,
-U.S. National Library of Medicine (rodgers@nlm.nih.gov).
-.\" end of man page
diff --git a/src/3rdparty/zlib/zlib.3.pdf b/src/3rdparty/zlib/zlib.3.pdf
deleted file mode 100644
index 9f8a2c3999..0000000000
--- a/src/3rdparty/zlib/zlib.3.pdf
+++ /dev/null
Binary files differ
diff --git a/src/3rdparty/zlib/zlib.pc.in b/src/3rdparty/zlib/zlib.pc.in
deleted file mode 100644
index 7e5acf9c77..0000000000
--- a/src/3rdparty/zlib/zlib.pc.in
+++ /dev/null
@@ -1,13 +0,0 @@
-prefix=@prefix@
-exec_prefix=@exec_prefix@
-libdir=@libdir@
-sharedlibdir=@sharedlibdir@
-includedir=@includedir@
-
-Name: zlib
-Description: zlib compression library
-Version: @VERSION@
-
-Requires:
-Libs: -L${libdir} -L${sharedlibdir} -lz
-Cflags: -I${includedir}
diff --git a/src/3rdparty/zlib_dependency.pri b/src/3rdparty/zlib_dependency.pri
index 6ac7e59158..f35f310c19 100644
--- a/src/3rdparty/zlib_dependency.pri
+++ b/src/3rdparty/zlib_dependency.pri
@@ -2,7 +2,7 @@
qtConfig(system-zlib) {
QMAKE_USE_PRIVATE += zlib
} else {
- INCLUDEPATH += $$PWD/zlib
+ INCLUDEPATH += $$PWD/zlib/src
!no_core_dep {
CONFIG += qt
QT_PRIVATE += core