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Update zconf.h and zlib.h for MacOSX to import z_crc_type 

This is the first revision that introduces the z_crc_type that is used by
the recently updated minizip code.
This commit is contained in:
Piotr Paweł Stefaniak 2024-03-18 22:00:03 +01:00
parent 8c93a8c12b
commit 3791810d2c
2 changed files with 357 additions and 148 deletions
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106
macosx/zconf.h
View File

@ -1,5 +1,5 @@
/* zconf.h -- configuration of the zlib compression library /* zconf.h -- configuration of the zlib compression library
* Copyright (C) 1995-2010 Jean-loup Gailly. * Copyright (C) 1995-2012 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
@ -15,6 +15,7 @@
* this permanently in zconf.h using "./configure --zprefix". * this permanently in zconf.h using "./configure --zprefix".
*/ */
#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */ #ifdef Z_PREFIX /* may be set to #if 1 by ./configure */
# define Z_PREFIX_SET
/* all linked symbols */ /* all linked symbols */
# define _dist_code z__dist_code # define _dist_code z__dist_code
@ -27,9 +28,11 @@
# define adler32 z_adler32 # define adler32 z_adler32
# define adler32_combine z_adler32_combine # define adler32_combine z_adler32_combine
# define adler32_combine64 z_adler32_combine64 # define adler32_combine64 z_adler32_combine64
# ifndef Z_SOLO
# define compress z_compress # define compress z_compress
# define compress2 z_compress2 # define compress2 z_compress2
# define compressBound z_compressBound # define compressBound z_compressBound
# endif
# define crc32 z_crc32 # define crc32 z_crc32
# define crc32_combine z_crc32_combine # define crc32_combine z_crc32_combine
# define crc32_combine64 z_crc32_combine64 # define crc32_combine64 z_crc32_combine64
@ -40,13 +43,16 @@
# define deflateInit2_ z_deflateInit2_ # define deflateInit2_ z_deflateInit2_
# define deflateInit_ z_deflateInit_ # define deflateInit_ z_deflateInit_
# define deflateParams z_deflateParams # define deflateParams z_deflateParams
# define deflatePending z_deflatePending
# define deflatePrime z_deflatePrime # define deflatePrime z_deflatePrime
# define deflateReset z_deflateReset # define deflateReset z_deflateReset
# define deflateResetKeep z_deflateResetKeep
# define deflateSetDictionary z_deflateSetDictionary # define deflateSetDictionary z_deflateSetDictionary
# define deflateSetHeader z_deflateSetHeader # define deflateSetHeader z_deflateSetHeader
# define deflateTune z_deflateTune # define deflateTune z_deflateTune
# define deflate_copyright z_deflate_copyright # define deflate_copyright z_deflate_copyright
# define get_crc_table z_get_crc_table # define get_crc_table z_get_crc_table
# ifndef Z_SOLO
# define gz_error z_gz_error # define gz_error z_gz_error
# define gz_intmax z_gz_intmax # define gz_intmax z_gz_intmax
# define gz_strwinerror z_gz_strwinerror # define gz_strwinerror z_gz_strwinerror
@ -61,11 +67,15 @@
# define gzerror z_gzerror # define gzerror z_gzerror
# define gzflush z_gzflush # define gzflush z_gzflush
# define gzgetc z_gzgetc # define gzgetc z_gzgetc
# define gzgetc_ z_gzgetc_
# define gzgets z_gzgets # define gzgets z_gzgets
# define gzoffset z_gzoffset # define gzoffset z_gzoffset
# define gzoffset64 z_gzoffset64 # define gzoffset64 z_gzoffset64
# define gzopen z_gzopen # define gzopen z_gzopen
# define gzopen64 z_gzopen64 # define gzopen64 z_gzopen64
# ifdef _WIN32
# define gzopen_w z_gzopen_w
# endif
# define gzprintf z_gzprintf # define gzprintf z_gzprintf
# define gzputc z_gzputc # define gzputc z_gzputc
# define gzputs z_gzputs # define gzputs z_gzputs
@ -78,6 +88,7 @@
# define gztell64 z_gztell64 # define gztell64 z_gztell64
# define gzungetc z_gzungetc # define gzungetc z_gzungetc
# define gzwrite z_gzwrite # define gzwrite z_gzwrite
# endif
# define inflate z_inflate # define inflate z_inflate
# define inflateBack z_inflateBack # define inflateBack z_inflateBack
# define inflateBackEnd z_inflateBackEnd # define inflateBackEnd z_inflateBackEnd
@ -95,13 +106,18 @@
# define inflateSync z_inflateSync # define inflateSync z_inflateSync
# define inflateSyncPoint z_inflateSyncPoint # define inflateSyncPoint z_inflateSyncPoint
# define inflateUndermine z_inflateUndermine # define inflateUndermine z_inflateUndermine
# define inflateResetKeep z_inflateResetKeep
# define inflate_copyright z_inflate_copyright # define inflate_copyright z_inflate_copyright
# define inflate_fast z_inflate_fast # define inflate_fast z_inflate_fast
# define inflate_table z_inflate_table # define inflate_table z_inflate_table
# ifndef Z_SOLO
# define uncompress z_uncompress # define uncompress z_uncompress
# endif
# define zError z_zError # define zError z_zError
# ifndef Z_SOLO
# define zcalloc z_zcalloc # define zcalloc z_zcalloc
# define zcfree z_zcfree # define zcfree z_zcfree
# endif
# define zlibCompileFlags z_zlibCompileFlags # define zlibCompileFlags z_zlibCompileFlags
# define zlibVersion z_zlibVersion # define zlibVersion z_zlibVersion
@ -111,7 +127,9 @@
# define alloc_func z_alloc_func # define alloc_func z_alloc_func
# define charf z_charf # define charf z_charf
# define free_func z_free_func # define free_func z_free_func
# ifndef Z_SOLO
# define gzFile z_gzFile # define gzFile z_gzFile
# endif
# define gz_header z_gz_header # define gz_header z_gz_header
# define gz_headerp z_gz_headerp # define gz_headerp z_gz_headerp
# define in_func z_in_func # define in_func z_in_func
@ -197,6 +215,12 @@
# endif # endif
#endif #endif
#if defined(ZLIB_CONST) && !defined(z_const)
# define z_const const
#else
# define z_const
#endif
/* Some Mac compilers merge all .h files incorrectly: */ /* Some Mac compilers merge all .h files incorrectly: */
#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) #if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__)
# define NO_DUMMY_DECL # define NO_DUMMY_DECL
@ -243,6 +267,14 @@
# endif # endif
#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 /* The following definitions for FAR are needed only for MSDOS mixed
* model programming (small or medium model with some far allocations). * model programming (small or medium model with some far allocations).
* This was tested only with MSC; for other MSDOS compilers you may have * This was tested only with MSC; for other MSDOS compilers you may have
@ -356,13 +388,46 @@ typedef uLong FAR uLongf;
typedef Byte *voidp; typedef Byte *voidp;
#endif #endif
#if 1 /* was set to #if 1 by ./configure */ /* ./configure may #define Z_U4 here */
#if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC)
# include <limits.h>
# if (UINT_MAX == 0xffffffffUL)
# define Z_U4 unsigned
# else
# if (ULONG_MAX == 0xffffffffUL)
# define Z_U4 unsigned long
# else
# if (USHRT_MAX == 0xffffffffUL)
# define Z_U4 unsigned short
# endif
# endif
# endif
#endif
#ifdef Z_U4
typedef Z_U4 z_crc_t;
#else
typedef unsigned long z_crc_t;
#endif
#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */
# define Z_HAVE_UNISTD_H # define Z_HAVE_UNISTD_H
#endif #endif
#ifdef HAVE_STDARG_H /* may be set to #if 1 by ./configure */
# define Z_HAVE_STDARG_H
#endif
#ifdef STDC #ifdef STDC
# ifndef Z_SOLO
# include <sys/types.h> /* for off_t */ # include <sys/types.h> /* for off_t */
# endif # endif
#endif
#ifdef _WIN32
# include <stddef.h> /* for wchar_t */
#endif
/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and /* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
* "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even
@ -370,12 +435,16 @@ typedef uLong FAR uLongf;
* both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
* equivalently requesting no 64-bit operations * equivalently requesting no 64-bit operations
*/ */
#if -_LARGEFILE64_SOURCE - -1 == 1 #if defined(LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
# undef _LARGEFILE64_SOURCE # undef _LARGEFILE64_SOURCE
#endif #endif
#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE) #if defined(__WATCOMC__) && !defined(Z_HAVE_UNISTD_H)
# include <unistd.h> /* for SEEK_* and off_t */ # 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 # ifdef VMS
# include <unixio.h> /* for off_t */ # include <unixio.h> /* for off_t */
# endif # endif
@ -383,8 +452,21 @@ typedef uLong FAR uLongf;
# define z_off_t off_t # define z_off_t off_t
# endif # endif
# 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_SET 0 /* Seek from beginning of file. */
# define SEEK_CUR 1 /* Seek from current position. */ # define SEEK_CUR 1 /* Seek from current position. */
# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ # define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
@ -394,18 +476,14 @@ typedef uLong FAR uLongf;
# define z_off_t long # define z_off_t long
#endif #endif
#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 #if !defined(_WIN32) && defined(Z_LARGE64)
# define z_off64_t off64_t # define z_off64_t off64_t
#else #else
# if defined(_WIN32) && !defined(__GNUC__) && !defined(Z_SOLO)
# define z_off64_t __int64
# else
# define z_off64_t z_off_t # define z_off64_t z_off_t
# endif # endif
#if defined(__OS400__)
# define NO_vsnprintf
#endif
#if defined(__MVS__)
# define NO_vsnprintf
#endif #endif
/* MVS linker does not support external names larger than 8 bytes */ /* MVS linker does not support external names larger than 8 bytes */

295
macosx/zlib.h
View File

@ -1,7 +1,7 @@
/* zlib.h -- interface of the 'zlib' general purpose compression library /* zlib.h -- interface of the 'zlib' general purpose compression library
version 1.2.5, April 19th, 2010 version 1.2.7, February xxth, 2012
Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler Copyright (C) 1995-2012 Jean-loup Gailly and Mark Adler
This software is provided 'as-is', without any express or implied This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages 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 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 Comments) 1950 to 1952 in the files http://tools.ietf.org/html/rfc1950
(zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format). (zlib format), rfc1951 (deflate format) and rfc1952 (gzip format).
*/ */
#ifndef ZLIB_H #ifndef ZLIB_H
@ -37,11 +37,11 @@
extern "C" { extern "C" {
#endif #endif
#define ZLIB_VERSION "1.2.5" #define ZLIB_VERSION "1.2.7-motley"
#define ZLIB_VERNUM 0x1250 #define ZLIB_VERNUM 0x1270
#define ZLIB_VER_MAJOR 1 #define ZLIB_VER_MAJOR 1
#define ZLIB_VER_MINOR 2 #define ZLIB_VER_MINOR 2
#define ZLIB_VER_REVISION 5 #define ZLIB_VER_REVISION 7
#define ZLIB_VER_SUBREVISION 0 #define ZLIB_VER_SUBREVISION 0
/* /*
@ -83,15 +83,15 @@ typedef void (*free_func) OF((voidpf opaque, voidpf address));
struct internal_state; struct internal_state;
typedef struct z_stream_s { 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 */ 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 should be put there */
uInt avail_out; /* remaining free space at next_out */ 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 */ struct internal_state FAR *state; /* not visible by applications */
alloc_func zalloc; /* used to allocate the internal state */ alloc_func zalloc; /* used to allocate the internal state */
@ -327,8 +327,9 @@ ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
Z_FINISH can be used immediately after deflateInit if all the compression 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 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 value returned by deflateBound (see below). Then deflate is guaranteed to
Z_STREAM_END, then it must be called again as described above. 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 adler32 checksum of all input read deflate() sets strm->adler to the adler32 checksum of all input read
so far (that is, total_in bytes). so far (that is, total_in bytes).
@ -451,23 +452,29 @@ ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
error. However if all decompression is to be performed in a single step (a 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 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; 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 avail_out must be large enough to hold all of the uncompressed data for the
of the uncompressed data may have been saved by the compressor for this operation to complete. (The size of the uncompressed data may have been
purpose.) The next operation on this stream must be inflateEnd to deallocate saved by the compressor for this purpose.) The use of Z_FINISH is not
the decompression state. The use of Z_FINISH is never required, but can be required to perform an inflation in one step. However it may be used to
used to inform inflate that a faster approach may be used for the single inform inflate that a faster approach can be used for the single inflate()
inflate() call. 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 In this implementation, inflate() always flushes as much output as
possible to the output buffer, and always uses the faster approach on the 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 first call. So the effects of the flush parameter in this implementation are
is on the return value of inflate(), as noted below, or when it returns early on the return value of inflate() as noted below, when inflate() returns early
because Z_BLOCK or Z_TREES is used. 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 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 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 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 adler32
checksum is equal to that saved by the compressor and returns Z_STREAM_END checksum is equal to that saved by the compressor and returns Z_STREAM_END
@ -478,7 +485,9 @@ ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
initializing with inflateInit2(). Any information contained in the gzip initializing with inflateInit2(). Any information contained in the gzip
header is not retained, so applications that need that information should header is not retained, so applications that need that information should
instead use raw inflate, see inflateInit2() below, or inflateBack() and instead use raw inflate, see inflateInit2() below, or inflateBack() and
perform their own processing of the gzip header and trailer. perform their own processing of the gzip header and trailer. When processing
gzip-wrapped deflate data, strm->adler32 is set to the CRC-32 of the output
producted so far. The CRC-32 is checked against the gzip trailer.
inflate() returns Z_OK if some progress has been made (more input processed 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 or more output produced), Z_STREAM_END if the end of the compressed data has
@ -580,10 +589,15 @@ ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm,
uInt dictLength)); uInt dictLength));
/* /*
Initializes the compression dictionary from the given byte sequence Initializes the compression dictionary from the given byte sequence
without producing any compressed output. This function must be called without producing any compressed output. When using the zlib format, this
immediately after deflateInit, deflateInit2 or deflateReset, before any call function must be called immediately after deflateInit, deflateInit2 or
of deflate. The compressor and decompressor must use exactly the same deflateReset, and before any call of deflate. When doing raw deflate, this
dictionary (see inflateSetDictionary). 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 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 to be encountered later in the data to be compressed, with the most commonly
@ -610,8 +624,8 @@ ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm,
deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a 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 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 inconsistent (for example if deflate has already been called for this stream
or if the compression method is bsort). deflateSetDictionary does not or if not at a block boundary for raw deflate). deflateSetDictionary does
perform any compression: this will be done by deflate(). not perform any compression: this will be done by deflate().
*/ */
ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest, ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest,
@ -688,7 +702,27 @@ ZEXTERN uLong ZEXPORT deflateBound OF((z_streamp strm,
deflation of sourceLen bytes. It must be called after deflateInit() or deflation of sourceLen bytes. It must be called after deflateInit() or
deflateInit2(), and after deflateSetHeader(), if used. This would be used 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 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, ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm,
@ -703,8 +737,9 @@ ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm,
than or equal to 16, and that many of the least significant bits of value than or equal to 16, and that many of the least significant bits of value
will be inserted in the output. will be inserted in the output.
deflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source deflatePrime returns Z_OK if success, Z_BUF_ERROR if there was not enough
stream state was inconsistent. 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, ZEXTERN int ZEXPORT deflateSetHeader OF((z_streamp strm,
@ -790,10 +825,11 @@ ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm,
if that call returned Z_NEED_DICT. The dictionary chosen by the compressor 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 adler32 value returned by that call of inflate.
The compressor and decompressor must use exactly the same dictionary (see The compressor and decompressor must use exactly the same dictionary (see
deflateSetDictionary). For raw inflate, this function can be called deflateSetDictionary). For raw inflate, this function can be called at any
immediately after inflateInit2() or inflateReset() and before any call of time to set the dictionary. If the provided dictionary is smaller than the
inflate() to set the dictionary. The application must insure that the window and there is already data in the window, then the provided dictionary
dictionary that was used for compression is provided. 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 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 parameter is invalid (e.g. dictionary being Z_NULL) or the stream state is
@ -805,17 +841,21 @@ ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm,
ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm)); ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm));
/* /*
Skips invalid compressed data until a full flush point (see above the Skips invalid compressed data until a possible full flush point (see above
description of deflate with Z_FULL_FLUSH) can be found, or until all for the description of deflate with Z_FULL_FLUSH) can be found, or until all
available input is skipped. No output is provided. available input is skipped. No output is provided.
inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR inflateSync searches for a 00 00 FF FF pattern in the compressed data.
if no more input was provided, Z_DATA_ERROR if no flush point has been All full flush points have this pattern, but not all occurences of this
found, or Z_STREAM_ERROR if the stream structure was inconsistent. In the pattern are full flush points.
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, inflateSync returns Z_OK if a possible full flush point has been found,
the application may repeatedly call inflateSync, providing more input each Z_BUF_ERROR if no more input was provided, Z_DATA_ERROR if no flush point
time, until success or end of the input data. 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, ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest,
@ -962,7 +1002,7 @@ ZEXTERN int ZEXPORT inflateBackInit OF((z_streamp strm, int windowBits,
See inflateBack() for the usage of these routines. See inflateBack() for the usage of these routines.
inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of 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 allocated, or Z_VERSION_ERROR if the version of the library does not match
the version of the header file. the version of the header file.
*/ */
@ -1088,6 +1128,7 @@ ZEXTERN uLong ZEXPORT zlibCompileFlags OF((void));
27-31: 0 (reserved) 27-31: 0 (reserved)
*/ */
#ifndef Z_SOLO
/* utility functions */ /* utility functions */
@ -1149,10 +1190,11 @@ ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen,
uncompress returns Z_OK if success, Z_MEM_ERROR if there was not 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 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.
*/ */
/* gzip file access functions */ /* gzip file access functions */
/* /*
@ -1162,7 +1204,7 @@ ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen,
wrapper, documented in RFC 1952, wrapped around a deflate stream. 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)); ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode));
@ -1172,13 +1214,28 @@ ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode));
a strategy: 'f' for filtered data as in "wb6f", 'h' for Huffman-only 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' 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 for fixed code compression as in "wb9F". (See the description of
deflateInit2 for more information about the strategy parameter.) Also "a" deflateInit2 for more information about the strategy parameter.) 'T' will
can be used instead of "w" to request that the gzip stream that will be request transparent writing or appending with no compression and not using
written be appended to the file. "+" will result in an error, since reading the gzip format.
and writing to the same gzip file is not supported.
"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 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 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 insufficient memory to allocate the gzFile state, or if an invalid mode was
@ -1197,7 +1254,11 @@ ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode));
descriptor fd, just like fclose(fdopen(fd, mode)) closes the file descriptor 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, 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 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 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 gzFile state, if an invalid mode was specified (an 'r', 'w', or 'a' was not
@ -1235,14 +1296,26 @@ ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy));
ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len)); ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len));
/* /*
Reads the given number of uncompressed bytes from the compressed file. If 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 the input file is not in gzip format, gzread copies the given number of
bytes into the buffer. bytes into the buffer directly from the file.
After reaching the end of a gzip stream in the input, gzread will continue 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 to read, looking for another gzip stream. Any number of gzip streams may be
of the input file directly without decompression. The entire input file concatenated in the input file, and will all be decompressed by gzread().
will be read if gzread is called until it returns less than the requested If something other than a gzip stream is encountered after a gzip stream,
len. 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 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.
@ -1256,7 +1329,7 @@ ZEXTERN int ZEXPORT gzwrite OF((gzFile file,
error. error.
*/ */
ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...)); ZEXTERN int ZEXPORTVA gzprintf Z_ARG((gzFile file, const char *format, ...));
/* /*
Converts, formats, and writes the arguments to the compressed file under Converts, formats, and writes the arguments to the compressed file under
control of the format string, as in fprintf. gzprintf returns the number of control of the format string, as in fprintf. gzprintf returns the number of
@ -1301,7 +1374,10 @@ ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c));
ZEXTERN int ZEXPORT gzgetc OF((gzFile file)); ZEXTERN int ZEXPORT gzgetc OF((gzFile file));
/* /*
Reads one byte from the compressed file. gzgetc returns this byte or -1 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)); ZEXTERN int ZEXPORT gzungetc OF((int c, gzFile file));
@ -1397,9 +1473,7 @@ ZEXTERN int ZEXPORT gzeof OF((gzFile file));
ZEXTERN int ZEXPORT gzdirect OF((gzFile file)); ZEXTERN int ZEXPORT gzdirect OF((gzFile file));
/* /*
Returns true (1) if file is being copied directly while reading, or false 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 (0) if file is a gzip stream being decompressed.
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.
If the input file is empty, gzdirect() will return true, since the input If the input file is empty, gzdirect() will return true, since the input
does not contain a gzip stream. does not contain a gzip stream.
@ -1408,6 +1482,13 @@ ZEXTERN int ZEXPORT gzdirect OF((gzFile file));
cause buffers to be allocated to allow reading the file to determine if it 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 is a gzip file. Therefore if gzbuffer() is used, it should be called before
gzdirect(). 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)); ZEXTERN int ZEXPORT gzclose OF((gzFile file));
@ -1419,7 +1500,8 @@ ZEXTERN int ZEXPORT gzclose OF((gzFile file));
must not be called more than once on the same allocation. 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 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)); ZEXTERN int ZEXPORT gzclose_r OF((gzFile file));
@ -1457,6 +1539,7 @@ ZEXTERN void ZEXPORT gzclearerr OF((gzFile file));
file that is being written concurrently. file that is being written concurrently.
*/ */
#endif /* !Z_SOLO */
/* checksum functions */ /* checksum functions */
@ -1492,16 +1575,17 @@ ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2,
Combine two Adler-32 checksums into one. For two sequences of bytes, seq1 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 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 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)); 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 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 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 initial value for the crc. Pre- and post-conditioning (one's complement) is
complement) is performed within this function so it shouldn't be done by the performed within this function so it shouldn't be done by the application.
application.
Usage example: Usage example:
@ -1544,17 +1628,42 @@ ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits,
const char *version, const char *version,
int stream_size)); int stream_size));
#define deflateInit(strm, level) \ #define deflateInit(strm, level) \
deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream)) deflateInit_((strm), (level), ZLIB_VERSION, (int)sizeof(z_stream))
#define inflateInit(strm) \ #define inflateInit(strm) \
inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream)) inflateInit_((strm), ZLIB_VERSION, (int)sizeof(z_stream))
#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \ #define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \
deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\ deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
(strategy), ZLIB_VERSION, sizeof(z_stream)) (strategy), ZLIB_VERSION, (int)sizeof(z_stream))
#define inflateInit2(strm, windowBits) \ #define inflateInit2(strm, windowBits) \
inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream)) inflateInit2_((strm), (windowBits), ZLIB_VERSION, \
(int)sizeof(z_stream))
#define inflateBackInit(strm, windowBits, window) \ #define inflateBackInit(strm, windowBits, window) \
inflateBackInit_((strm), (windowBits), (window), \ inflateBackInit_((strm), (windowBits), (window), \
ZLIB_VERSION, sizeof(z_stream)) ZLIB_VERSION, (int)sizeof(z_stream))
#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 /* 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 * change the regular functions to 64 bits if _FILE_OFFSET_BITS is 64 (if
@ -1562,7 +1671,7 @@ ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits,
* functions are changed to 64 bits) -- in case these are set on systems * functions are changed to 64 bits) -- in case these are set on systems
* without large file support, _LFS64_LARGEFILE must also be true * 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 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 gzseek64 OF((gzFile, z_off64_t, int));
ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile)); ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile));
@ -1571,14 +1680,23 @@ ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits,
ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off64_t)); ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off64_t));
#endif #endif
#if !defined(ZLIB_INTERNAL) && _FILE_OFFSET_BITS-0 == 64 && _LFS64_LARGEFILE-0 #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 gzopen gzopen64
# define gzseek gzseek64 # define gzseek gzseek64
# define gztell gztell64 # define gztell gztell64
# define gzoffset gzoffset64 # define gzoffset gzoffset64
# define adler32_combine adler32_combine64 # define adler32_combine adler32_combine64
# define crc32_combine crc32_combine64 # define crc32_combine crc32_combine64
# ifdef _LARGEFILE64_SOURCE # endif
# ifndef Z_LARGE64
ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *)); 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 gzseek64 OF((gzFile, z_off_t, int));
ZEXTERN z_off_t ZEXPORT gztell64 OF((gzFile)); ZEXTERN z_off_t ZEXPORT gztell64 OF((gzFile));
@ -1595,6 +1713,13 @@ ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits,
ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t)); ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t));
#endif #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 */
/* hack for buggy compilers */ /* hack for buggy compilers */
#if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL) #if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL)
struct internal_state {int dummy;}; struct internal_state {int dummy;};
@ -1603,8 +1728,14 @@ ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits,
/* undocumented functions */ /* undocumented functions */
ZEXTERN const char * ZEXPORT zError OF((int)); ZEXTERN const char * ZEXPORT zError OF((int));
ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp)); 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 inflateUndermine OF((z_streamp, int));
ZEXTERN int ZEXPORT inflateResetKeep OF((z_streamp));
ZEXTERN int ZEXPORT deflateResetKeep OF((z_streamp));
#if defined(_WIN32) && !defined(Z_SOLO)
ZEXTERN gzFile ZEXPORT gzopen_w OF((const wchar_t *path,
const char *mode));
#endif
#ifdef __cplusplus #ifdef __cplusplus
} }