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+.TH ZLIB 3 "19 Apr 2010"
+zlib \- compression/decompression library
+.I zlib.h
+for full description]
+.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.
+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.
+The library also supports reading and writing files in
+.IR gzip (1)
+(.gz) format
+with an interface similar to that of stdio.
+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.
+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
+.IR minigzip.c,
+as well as other examples in the
+.IR examples/
+Changes to this version are documented in the file
+.I ChangeLog
+that accompanies the source.
+.I zlib
+is available in Java using the package:
+A Perl interface to
+.IR zlib ,
+written by Paul Marquess (,
+is available at CPAN (Comprehensive Perl Archive Network) sites,
+A Python interface to
+.IR zlib ,
+written by A.M. Kuchling (,
+is available in Python 1.5 and later versions:
+.I zlib
+is built into
+.IR tcl:
+An experimental package to read and write files in .zip format,
+written on top of
+.I zlib
+by Gilles Vollant (,
+is available at:
+and also in the
+.I contrib/minizip
+directory of the main
+.I zlib
+source distribution.
+.I zlib
+web site can be found at:
+The data format used by the zlib library is described by RFC
+(Request for Comments) 1950 to 1952 in the files:
+ (for the zlib header and trailer format)
+ (for the deflate compressed data format)
+ (for the gzip header and trailer format)
+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:
+Before reporting a problem,
+please check the
+.I zlib
+web site to verify that you have the latest version of
+.IR zlib ;
+obtain the latest version and see if the problem still exists.
+Please read the
+.I zlib
+FAQ at:
+before asking for help.
+Send questions and/or comments to,
+or (for the Windows DLL version) to Gilles Vollant (
+Version 1.2.5
+Copyright (C) 1995-2010 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
+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.
+UNIX manual page by R. P. C. Rodgers,
+U.S. National Library of Medicine (
+.\" end of man page