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zlib.h 85.82 KiB
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/* zlib.h -- interface of the 'zlib' general purpose compression library
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  version 1.2.8, April 28th, 2013
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  Copyright (C) 1995-2013 Jean-loup Gailly and Mark Adler
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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  Jean-loup Gailly        Mark Adler
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  jloup@gzip.org          madler@alumni.caltech.edu
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  The data format used by the zlib library is described by RFCs (Request for
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  Comments) 1950 to 1952 in the files http://tools.ietf.org/html/rfc1950
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  (zlib format), rfc1951 (deflate format) and rfc1952 (gzip format).
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*/
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#ifndef ZLIB_H
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#define ZLIB_H
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#include "zconf.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define ZLIB_VERSION "1.2.8"
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#define ZLIB_VERNUM 0x1280
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#define ZLIB_VER_MAJOR 1
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#define ZLIB_VER_MINOR 2
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#define ZLIB_VER_REVISION 8
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#define ZLIB_VER_SUBREVISION 0
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/*
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    The 'zlib' compression library provides in-memory compression and
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  decompression functions, including integrity checks of the uncompressed data.
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  This version of the library supports only one compression method (deflation)
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  but other algorithms will be added later and will have the same stream
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  interface.
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    Compression can be done in a single step if the buffers are large enough,
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  or can be done by repeated calls of the compression function.  In the latter
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  case, the application must provide more input and/or consume the output
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  (providing more output space) before each call.
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    The compressed data format used by default by the in-memory functions is
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  the zlib format, which is a zlib wrapper documented in RFC 1950, wrapped
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  around a deflate stream, which is itself documented in RFC 1951.
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    The library also supports reading and writing files in gzip (.gz) format
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  with an interface similar to that of stdio using the functions that start
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  with "gz".  The gzip format is different from the zlib format.  gzip is a
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  gzip wrapper, documented in RFC 1952, wrapped around a deflate stream.
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    This library can optionally read and write gzip streams in memory as well.
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    The zlib format was designed to be compact and fast for use in memory