diff options
Diffstat (limited to 'src/libs/3rdparty/botan/src/lib/utils/data_src.cpp')
| -rw-r--r-- | src/libs/3rdparty/botan/src/lib/utils/data_src.cpp | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/src/libs/3rdparty/botan/src/lib/utils/data_src.cpp b/src/libs/3rdparty/botan/src/lib/utils/data_src.cpp deleted file mode 100644 index c5689534ff..0000000000 --- a/src/libs/3rdparty/botan/src/lib/utils/data_src.cpp +++ /dev/null @@ -1,214 +0,0 @@ -/* -* DataSource -* (C) 1999-2007 Jack Lloyd -* 2005 Matthew Gregan -* -* Botan is released under the Simplified BSD License (see license.txt) -*/ - -#include <botan/data_src.h> -#include <botan/exceptn.h> -#include <algorithm> -#include <istream> - -#if defined(BOTAN_TARGET_OS_HAS_FILESYSTEM) - #include <fstream> -#endif - -namespace Botan { - -/* -* Read a single byte from the DataSource -*/ -size_t DataSource::read_byte(uint8_t& out) - { - return read(&out, 1); - } - -/* -* Peek a single byte from the DataSource -*/ -size_t DataSource::peek_byte(uint8_t& out) const - { - return peek(&out, 1, 0); - } - -/* -* Discard the next N bytes of the data -*/ -size_t DataSource::discard_next(size_t n) - { - uint8_t buf[64] = { 0 }; - size_t discarded = 0; - - while(n) - { - const size_t got = this->read(buf, std::min(n, sizeof(buf))); - discarded += got; - n -= got; - - if(got == 0) - break; - } - - return discarded; - } - -/* -* Read from a memory buffer -*/ -size_t DataSource_Memory::read(uint8_t out[], size_t length) - { - const size_t got = std::min<size_t>(m_source.size() - m_offset, length); - copy_mem(out, m_source.data() + m_offset, got); - m_offset += got; - return got; - } - -bool DataSource_Memory::check_available(size_t n) - { - return (n <= (m_source.size() - m_offset)); - } - -/* -* Peek into a memory buffer -*/ -size_t DataSource_Memory::peek(uint8_t out[], size_t length, - size_t peek_offset) const - { - const size_t bytes_left = m_source.size() - m_offset; - if(peek_offset >= bytes_left) return 0; - - const size_t got = std::min(bytes_left - peek_offset, length); - copy_mem(out, &m_source[m_offset + peek_offset], got); - return got; - } - -/* -* Check if the memory buffer is empty -*/ -bool DataSource_Memory::end_of_data() const - { - return (m_offset == m_source.size()); - } - -/* -* DataSource_Memory Constructor -*/ -DataSource_Memory::DataSource_Memory(const std::string& in) : - m_source(cast_char_ptr_to_uint8(in.data()), - cast_char_ptr_to_uint8(in.data()) + in.length()), - m_offset(0) - { - } - -/* -* Read from a stream -*/ -size_t DataSource_Stream::read(uint8_t out[], size_t length) - { - m_source.read(cast_uint8_ptr_to_char(out), length); - if(m_source.bad()) - throw Stream_IO_Error("DataSource_Stream::read: Source failure"); - - const size_t got = static_cast<size_t>(m_source.gcount()); - m_total_read += got; - return got; - } - -bool DataSource_Stream::check_available(size_t n) - { - const std::streampos orig_pos = m_source.tellg(); - m_source.seekg(0, std::ios::end); - const size_t avail = static_cast<size_t>(m_source.tellg() - orig_pos); - m_source.seekg(orig_pos); - return (avail >= n); - } - -/* -* Peek into a stream -*/ -size_t DataSource_Stream::peek(uint8_t out[], size_t length, size_t offset) const - { - if(end_of_data()) - throw Invalid_State("DataSource_Stream: Cannot peek when out of data"); - - size_t got = 0; - - if(offset) - { - secure_vector<uint8_t> buf(offset); - m_source.read(cast_uint8_ptr_to_char(buf.data()), buf.size()); - if(m_source.bad()) - throw Stream_IO_Error("DataSource_Stream::peek: Source failure"); - got = static_cast<size_t>(m_source.gcount()); - } - - if(got == offset) - { - m_source.read(cast_uint8_ptr_to_char(out), length); - if(m_source.bad()) - throw Stream_IO_Error("DataSource_Stream::peek: Source failure"); - got = static_cast<size_t>(m_source.gcount()); - } - - if(m_source.eof()) - m_source.clear(); - m_source.seekg(m_total_read, std::ios::beg); - - return got; - } - -/* -* Check if the stream is empty or in error -*/ -bool DataSource_Stream::end_of_data() const - { - return (!m_source.good()); - } - -/* -* Return a human-readable ID for this stream -*/ -std::string DataSource_Stream::id() const - { - return m_identifier; - } - -#if defined(BOTAN_TARGET_OS_HAS_FILESYSTEM) - -/* -* DataSource_Stream Constructor -*/ -DataSource_Stream::DataSource_Stream(const std::string& path, - bool use_binary) : - m_identifier(path), - m_source_memory(new std::ifstream(path, use_binary ? std::ios::binary : std::ios::in)), - m_source(*m_source_memory), - m_total_read(0) - { - if(!m_source.good()) - { - throw Stream_IO_Error("DataSource: Failure opening file " + path); - } - } - -#endif - -/* -* DataSource_Stream Constructor -*/ -DataSource_Stream::DataSource_Stream(std::istream& in, - const std::string& name) : - m_identifier(name), - m_source(in), - m_total_read(0) - { - } - -DataSource_Stream::~DataSource_Stream() - { - // for ~unique_ptr - } - -} |