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zlib updated to the version 1.2.7

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This commit is contained in:
Marian Krivos
2012-08-07 20:42:25 +00:00
parent 20c9c08ea1
commit 871cdaff44
19 changed files with 1143 additions and 636 deletions
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10
Foundation/CMakeLists.txt
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@@ -151,11 +151,11 @@ set( BASE_SRCS
src/compress.c src/compress.c
src/crc32.c src/crc32.c
src/deflate.c src/deflate.c
# src/gzclose.c src/gzclose.c
# src/gzlib.c src/gzlib.c
# src/gzread.c src/gzread.c
# src/gzwrite.c src/gzwrite.c
# src/uncompr.c src/uncompr.c
src/infback.c src/infback.c
src/inffast.c src/inffast.c
src/inflate.c src/inflate.c

3
Foundation/Makefile
View File

@@ -34,7 +34,8 @@ objects = ArchiveStrategy Ascii ASCIIEncoding AsyncChannel Base64Decoder Base64E
MemoryStream FileStream AtomicCounter MemoryStream FileStream AtomicCounter
zlib_objects = adler32 compress crc32 deflate \ zlib_objects = adler32 compress crc32 deflate \
infback inffast inflate inftrees trees zutil infback inffast inflate inftrees trees zutil \
gzclose gzlib gzread gzwrite uncompr
pcre_objects = pcre_chartables pcre_compile pcre_globals pcre_maketables \ pcre_objects = pcre_chartables pcre_compile pcre_globals pcre_maketables \
pcre_study pcre_try_flipped pcre_valid_utf8 \ pcre_study pcre_try_flipped pcre_valid_utf8 \

112
Foundation/include/Poco/zconf.h
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@@ -1,9 +1,9 @@
/* 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
*/ */
/* @(#) $Id: //poco/1.4/Foundation/include/Poco/zconf.h#3 $ */ /* @(#) $Id$ */
#ifndef ZCONF_H #ifndef ZCONF_H
#define ZCONF_H #define ZCONF_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
@@ -356,14 +388,45 @@ typedef uLong FAR uLongf;
typedef Byte *voidp; typedef Byte *voidp;
#endif #endif
/* ./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 */ #ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */
# define Z_HAVE_UNISTD_H # define Z_HAVE_UNISTD_H
#endif #endif
#ifndef _WIN32_WCE #ifdef HAVE_STDARG_H /* may be set to #if 1 by ./configure */
#ifdef STDC # define Z_HAVE_STDARG_H
# include <sys/types.h> /* for off_t */
#endif #endif
#ifdef STDC
# ifndef Z_SOLO
# include <sys/types.h> /* for off_t */
# endif
#endif
#ifdef _WIN32
# include <stddef.h> /* for wchar_t */
#endif #endif
/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and /* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
@@ -372,21 +435,38 @@ 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
# ifndef z_off_t # ifndef z_off_t
# 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" */
@@ -396,18 +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
Foundation/include/Poco/zlib.h
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@@ -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, May 2nd, 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"
#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,
@@ -688,9 +702,29 @@ 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,
int bits, int bits,
int value)); int value));
@@ -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
} }

68
Foundation/src/adler32.c
View File

@@ -1,5 +1,5 @@
/* adler32.c -- compute the Adler-32 checksum of a data stream /* adler32.c -- compute the Adler-32 checksum of a data stream
* Copyright (C) 1995-2007 Mark Adler * Copyright (C) 1995-2011 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
@@ -9,9 +9,9 @@
#define local static #define local static
local uLong adler32_combine_(uLong adler1, uLong adler2, z_off64_t len2); local uLong adler32_combine_ OF((uLong adler1, uLong adler2, z_off64_t len2));
#define BASE 65521UL /* largest prime smaller than 65536 */ #define BASE 65521 /* largest prime smaller than 65536 */
#define NMAX 5552 #define NMAX 5552
/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */ /* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */
@@ -21,39 +21,44 @@ local uLong adler32_combine_(uLong adler1, uLong adler2, z_off64_t len2);
#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4); #define DO8(buf,i) DO4(buf,i); DO4(buf,i+4);
#define DO16(buf) DO8(buf,0); DO8(buf,8); #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 #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 { \ do { \
if (a >= (BASE << 16)) a -= (BASE << 16); \ unsigned long tmp = a >> 16; \
if (a >= (BASE << 15)) a -= (BASE << 15); \ a &= 0xffffUL; \
if (a >= (BASE << 14)) a -= (BASE << 14); \ a += (tmp << 4) - tmp; \
if (a >= (BASE << 13)) a -= (BASE << 13); \ } while (0)
if (a >= (BASE << 12)) a -= (BASE << 12); \ # define MOD28(a) \
if (a >= (BASE << 11)) a -= (BASE << 11); \ do { \
if (a >= (BASE << 10)) a -= (BASE << 10); \ CHOP(a); \
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); \
if (a >= BASE) a -= BASE; \ if (a >= BASE) a -= BASE; \
} while (0) } while (0)
# define MOD4(a) \ # define MOD(a) \
do { \ do { \
if (a >= (BASE << 4)) a -= (BASE << 4); \ CHOP(a); \
if (a >= (BASE << 3)) a -= (BASE << 3); \ MOD28(a); \
if (a >= (BASE << 2)) a -= (BASE << 2); \ } while (0)
if (a >= (BASE << 1)) a -= (BASE << 1); \ # 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; \ if (a >= BASE) a -= BASE; \
} while (0) } while (0)
#else #else
# define MOD(a) a %= BASE # define MOD(a) a %= BASE
# define MOD4(a) a %= BASE # define MOD28(a) a %= BASE
# define MOD63(a) a %= BASE
#endif #endif
/* ========================================================================= */ /* ========================================================================= */
@@ -92,7 +97,7 @@ uLong ZEXPORT adler32(adler, buf, len)
} }
if (adler >= BASE) if (adler >= BASE)
adler -= BASE; adler -= BASE;
MOD4(sum2); /* only added so many BASE's */ MOD28(sum2); /* only added so many BASE's */
return adler | (sum2 << 16); return adler | (sum2 << 16);
} }
@@ -137,8 +142,13 @@ local uLong adler32_combine_(adler1, adler2, len2)
unsigned long sum2; unsigned long sum2;
unsigned rem; 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 */ /* 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; sum1 = adler1 & 0xffff;
sum2 = rem * sum1; sum2 = rem * sum1;
MOD(sum2); MOD(sum2);

2
Foundation/src/compress.c
View File

@@ -3,7 +3,7 @@
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
/* @(#) $Id: //poco/1.4/Foundation/src/compress.c#2 $ */ /* @(#) $Id$ */
#define ZLIB_INTERNAL #define ZLIB_INTERNAL
#include "zlib.h" #include "zlib.h"

85
Foundation/src/crc32.c
View File

@@ -1,5 +1,5 @@
/* crc32.c -- compute the CRC-32 of a data stream /* crc32.c -- compute the CRC-32 of a data stream
* Copyright (C) 1995-2006, 2010 Mark Adler * Copyright (C) 1995-2006, 2010, 2011, 2012 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h * 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 * Thanks to Rodney Brown <rbrown64@csc.com.au> for his contribution of faster
@@ -9,7 +9,7 @@
* factor of two increase in speed on a Power PC G4 (PPC7455) using gcc -O3. * factor of two increase in speed on a Power PC G4 (PPC7455) using gcc -O3.
*/ */
/* @(#) $Id: //poco/1.4/Foundation/src/crc32.c#2 $ */ /* @(#) $Id$ */
/* /*
Note on the use of DYNAMIC_CRC_TABLE: there is no mutex or semaphore Note on the use of DYNAMIC_CRC_TABLE: there is no mutex or semaphore
@@ -17,6 +17,8 @@
of the crc tables. Therefore, if you #define DYNAMIC_CRC_TABLE, you should 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 first call get_crc_table() to initialize the tables before allowing more than
one thread to use crc32(). one thread to use crc32().
DYNAMIC_CRC_TABLE and MAKECRCH can be #defined to write out crc32.h.
*/ */
#ifdef MAKECRCH #ifdef MAKECRCH
@@ -30,31 +32,11 @@
#define local static #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. */ /* Definitions for doing the crc four data bytes at a time. */
#if !defined(NOBYFOUR) && defined(Z_U4)
# define BYFOUR
#endif
#ifdef BYFOUR #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, local unsigned long crc32_little OF((unsigned long,
const unsigned char FAR *, unsigned)); const unsigned char FAR *, unsigned));
local unsigned long crc32_big OF((unsigned long, local unsigned long crc32_big OF((unsigned long,
@@ -68,16 +50,16 @@
local unsigned long gf2_matrix_times OF((unsigned long *mat, local unsigned long gf2_matrix_times OF((unsigned long *mat,
unsigned long vec)); unsigned long vec));
local void gf2_matrix_square OF((unsigned long *square, unsigned long *mat)); 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 #ifdef DYNAMIC_CRC_TABLE
local volatile int crc_table_empty = 1; 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)); local void make_crc_table OF((void));
#ifdef MAKECRCH #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 */ #endif /* MAKECRCH */
/* /*
Generate tables for a byte-wise 32-bit CRC calculation on the polynomial: Generate tables for a byte-wise 32-bit CRC calculation on the polynomial:
@@ -107,9 +89,9 @@ local void make_crc_table OF((void));
*/ */
local void make_crc_table() local void make_crc_table()
{ {
unsigned long c; z_crc_t c;
int n, k; 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): */ /* terms of polynomial defining this crc (except x^32): */
static volatile int first = 1; /* flag to limit concurrent making */ 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}; static const unsigned char p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26};
@@ -121,13 +103,13 @@ local void make_crc_table()
first = 0; first = 0;
/* make exclusive-or pattern from polynomial (0xedb88320UL) */ /* make exclusive-or pattern from polynomial (0xedb88320UL) */
poly = 0UL; poly = 0;
for (n = 0; n < sizeof(p)/sizeof(unsigned char); n++) for (n = 0; n < (int)(sizeof(p)/sizeof(unsigned char)); n++)
poly |= 1UL << (31 - p[n]); poly |= (z_crc_t)1 << (31 - p[n]);
/* generate a crc for every 8-bit value */ /* generate a crc for every 8-bit value */
for (n = 0; n < 256; n++) { for (n = 0; n < 256; n++) {
c = (unsigned long)n; c = (z_crc_t)n;
for (k = 0; k < 8; k++) for (k = 0; k < 8; k++)
c = c & 1 ? poly ^ (c >> 1) : c >> 1; c = c & 1 ? poly ^ (c >> 1) : c >> 1;
crc_table[0][n] = c; crc_table[0][n] = c;
@@ -138,11 +120,11 @@ local void make_crc_table()
and then the byte reversal of those as well as the first table */ and then the byte reversal of those as well as the first table */
for (n = 0; n < 256; n++) { for (n = 0; n < 256; n++) {
c = crc_table[0][n]; c = crc_table[0][n];
crc_table[4][n] = REV(c); crc_table[4][n] = ZSWAP32(c);
for (k = 1; k < 4; k++) { for (k = 1; k < 4; k++) {
c = crc_table[0][c & 0xff] ^ (c >> 8); c = crc_table[0][c & 0xff] ^ (c >> 8);
crc_table[k][n] = c; crc_table[k][n] = c;
crc_table[k + 4][n] = REV(c); crc_table[k + 4][n] = ZSWAP32(c);
} }
} }
#endif /* BYFOUR */ #endif /* BYFOUR */
@@ -164,7 +146,7 @@ local void make_crc_table()
if (out == NULL) return; if (out == NULL) return;
fprintf(out, "/* crc32.h -- tables for rapid CRC calculation\n"); fprintf(out, "/* crc32.h -- tables for rapid CRC calculation\n");
fprintf(out, " * Generated automatically by crc32.c\n */\n\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"); fprintf(out, "crc_table[TBLS][256] =\n{\n {\n");
write_table(out, crc_table[0]); write_table(out, crc_table[0]);
# ifdef BYFOUR # ifdef BYFOUR
@@ -184,12 +166,13 @@ local void make_crc_table()
#ifdef MAKECRCH #ifdef MAKECRCH
local void write_table(out, table) local void write_table(out, table)
FILE *out; FILE *out;
const unsigned long FAR *table; const z_crc_t FAR *table;
{ {
int n; int n;
for (n = 0; n < 256; 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" : ", ")); n == 255 ? "\n" : (n % 5 == 4 ? ",\n" : ", "));
} }
#endif /* MAKECRCH */ #endif /* MAKECRCH */
@@ -204,13 +187,13 @@ local void write_table(out, table)
/* ========================================================================= /* =========================================================================
* This function can be used by asm versions of crc32() * 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 #ifdef DYNAMIC_CRC_TABLE
if (crc_table_empty) if (crc_table_empty)
make_crc_table(); make_crc_table();
#endif /* DYNAMIC_CRC_TABLE */ #endif /* DYNAMIC_CRC_TABLE */
return (const unsigned long FAR *)crc_table; return (const z_crc_t FAR *)crc_table;
} }
/* ========================================================================= */ /* ========================================================================= */
@@ -232,7 +215,7 @@ unsigned long ZEXPORT crc32(crc, buf, len)
#ifdef BYFOUR #ifdef BYFOUR
if (sizeof(void *) == sizeof(ptrdiff_t)) { if (sizeof(void *) == sizeof(ptrdiff_t)) {
u4 endian; z_crc_t endian;
endian = 1; endian = 1;
if (*((unsigned char *)(&endian))) if (*((unsigned char *)(&endian)))
@@ -266,17 +249,17 @@ local unsigned long crc32_little(crc, buf, len)
const unsigned char FAR *buf; const unsigned char FAR *buf;
unsigned len; unsigned len;
{ {
register u4 c; register z_crc_t c;
register const u4 FAR *buf4; register const z_crc_t FAR *buf4;
c = (u4)crc; c = (z_crc_t)crc;
c = ~c; c = ~c;
while (len && ((ptrdiff_t)buf & 3)) { while (len && ((ptrdiff_t)buf & 3)) {
c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8); c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8);
len--; len--;
} }
buf4 = (const u4 FAR *)(const void FAR *)buf; buf4 = (const z_crc_t FAR *)(const void FAR *)buf;
while (len >= 32) { while (len >= 32) {
DOLIT32; DOLIT32;
len -= 32; len -= 32;
@@ -306,17 +289,17 @@ local unsigned long crc32_big(crc, buf, len)
const unsigned char FAR *buf; const unsigned char FAR *buf;
unsigned len; unsigned len;
{ {
register u4 c; register z_crc_t c;
register const u4 FAR *buf4; register const z_crc_t FAR *buf4;
c = REV((u4)crc); c = ZSWAP32((z_crc_t)crc);
c = ~c; c = ~c;
while (len && ((ptrdiff_t)buf & 3)) { while (len && ((ptrdiff_t)buf & 3)) {
c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8); c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8);
len--; len--;
} }
buf4 = (const u4 FAR *)(const void FAR *)buf; buf4 = (const z_crc_t FAR *)(const void FAR *)buf;
buf4--; buf4--;
while (len >= 32) { while (len >= 32) {
DOBIG32; DOBIG32;
@@ -333,7 +316,7 @@ local unsigned long crc32_big(crc, buf, len)
c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8); c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8);
} while (--len); } while (--len);
c = ~c; c = ~c;
return (unsigned long)(REV(c)); return (unsigned long)(ZSWAP32(c));
} }
#endif /* BYFOUR */ #endif /* BYFOUR */

2
Foundation/src/crc32.h
View File

@@ -2,7 +2,7 @@
* Generated automatically by crc32.c * 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, 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,

259
Foundation/src/deflate.c
View File

@@ -1,5 +1,5 @@
/* deflate.c -- compress data using the deflation algorithm /* deflate.c -- compress data using the deflation algorithm
* Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler * Copyright (C) 1995-2012 Jean-loup Gailly and Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
@@ -37,7 +37,7 @@
* REFERENCES * REFERENCES
* *
* Deutsch, L.P.,"DEFLATE Compressed Data Format Specification". * 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 * A description of the Rabin and Karp algorithm is given in the book
* "Algorithms" by R. Sedgewick, Addison-Wesley, p252. * "Algorithms" by R. Sedgewick, Addison-Wesley, p252.
@@ -47,12 +47,12 @@
* *
*/ */
/* @(#) $Id: //poco/1.4/Foundation/src/deflate.c#2 $ */ /* @(#) $Id$ */
#include "deflate.h" #include "deflate.h"
const char deflate_copyright[] = const char deflate_copyright[] =
" deflate 1.2.5 Copyright 1995-2010 Jean-loup Gailly and Mark Adler "; " deflate 1.2.7 Copyright 1995-2012 Jean-loup Gailly and Mark Adler ";
/* /*
If you use the zlib library in a product, an acknowledgment is welcome 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 in the documentation of your product. If for some reason you cannot
@@ -155,6 +155,9 @@ local const config configuration_table[10] = {
struct static_tree_desc_s {int dummy;}; /* for buggy compilers */ struct static_tree_desc_s {int dummy;}; /* for buggy compilers */
#endif #endif
/* rank Z_BLOCK between Z_NO_FLUSH and Z_PARTIAL_FLUSH */
#define RANK(f) (((f) << 1) - ((f) > 4 ? 9 : 0))
/* =========================================================================== /* ===========================================================================
* Update a hash value with the given input byte * Update a hash value with the given input byte
* IN assertion: all calls to to UPDATE_HASH are made with consecutive * IN assertion: all calls to to UPDATE_HASH are made with consecutive
@@ -235,10 +238,19 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
strm->msg = Z_NULL; strm->msg = Z_NULL;
if (strm->zalloc == (alloc_func)0) { if (strm->zalloc == (alloc_func)0) {
#ifdef Z_SOLO
return Z_STREAM_ERROR;
#else
strm->zalloc = zcalloc; strm->zalloc = zcalloc;
strm->opaque = (voidpf)0; 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 #ifdef FASTEST
if (level != 0) level = 1; if (level != 0) level = 1;
@@ -314,43 +326,70 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
uInt dictLength; uInt dictLength;
{ {
deflate_state *s; deflate_state *s;
uInt length = dictLength; uInt str, n;
uInt n; int wrap;
IPos hash_head = 0; unsigned avail;
unsigned char *next;
if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL || if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL)
strm->state->wrap == 2 || return Z_STREAM_ERROR;
(strm->state->wrap == 1 && strm->state->status != INIT_STATE)) s = strm->state;
wrap = s->wrap;
if (wrap == 2 || (wrap == 1 && s->status != INIT_STATE) || s->lookahead)
return Z_STREAM_ERROR; return Z_STREAM_ERROR;
s = strm->state; /* when using zlib wrappers, compute Adler-32 for provided dictionary */
if (s->wrap) if (wrap == 1)
strm->adler = adler32(strm->adler, dictionary, dictLength); strm->adler = adler32(strm->adler, dictionary, dictLength);
s->wrap = 0; /* avoid computing Adler-32 in read_buf */
if (length < MIN_MATCH) return Z_OK; /* if dictionary would fill window, just replace the history */
if (length > s->w_size) { if (dictLength >= s->w_size) {
length = s->w_size; if (wrap == 0) { /* already empty otherwise */
dictionary += dictLength - length; /* use the tail of the dictionary */ 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). /* insert dictionary into window and hash */
* s->lookahead stays null, so s->ins_h will be recomputed at the next avail = strm->avail_in;
* call of fill_window. next = strm->next_in;
*/ strm->avail_in = dictLength;
s->ins_h = s->window[0]; strm->next_in = (Bytef *)dictionary;
UPDATE_HASH(s, s->ins_h, s->window[1]); fill_window(s);
for (n = 0; n <= length - MIN_MATCH; n++) { while (s->lookahead >= MIN_MATCH) {
INSERT_STRING(s, n, hash_head); 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; return Z_OK;
} }
/* ========================================================================= */ /* ========================================================================= */
int ZEXPORT deflateReset (strm) int ZEXPORT deflateResetKeep (strm)
z_streamp strm; z_streamp strm;
{ {
deflate_state *s; deflate_state *s;
@@ -380,11 +419,22 @@ int ZEXPORT deflateReset (strm)
s->last_flush = Z_NO_FLUSH; s->last_flush = Z_NO_FLUSH;
_tr_init(s); _tr_init(s);
lm_init(s);
return Z_OK; 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) int ZEXPORT deflateSetHeader (strm, head)
z_streamp strm; z_streamp strm;
@@ -396,15 +446,43 @@ int ZEXPORT deflateSetHeader (strm, head)
return Z_OK; return Z_OK;
} }
/* ========================================================================= */
int ZEXPORT deflatePending (strm, pending, bits)
unsigned *pending;
int *bits;
z_streamp strm;
{
if (strm == Z_NULL || strm->state == Z_NULL) 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) int ZEXPORT deflatePrime (strm, bits, value)
z_streamp strm; z_streamp strm;
int bits; int bits;
int value; int value;
{ {
deflate_state *s;
int put;
if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
strm->state->bi_valid = bits; s = strm->state;
strm->state->bi_buf = (ush)(value & ((1 << bits) - 1)); 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; return Z_OK;
} }
@@ -562,19 +640,22 @@ local void putShortMSB (s, b)
local void flush_pending(strm) local void flush_pending(strm)
z_streamp 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 > strm->avail_out) len = strm->avail_out;
if (len == 0) return; 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->next_out += len;
strm->state->pending_out += len; s->pending_out += len;
strm->total_out += len; strm->total_out += len;
strm->avail_out -= len; strm->avail_out -= len;
strm->state->pending -= len; s->pending -= len;
if (strm->state->pending == 0) { if (s->pending == 0) {
strm->state->pending_out = strm->state->pending_buf; s->pending_out = s->pending_buf;
} }
} }
@@ -801,7 +882,7 @@ int ZEXPORT deflate (strm, flush)
* flushes. For repeated and useless calls with Z_FINISH, we keep * flushes. For repeated and useless calls with Z_FINISH, we keep
* returning Z_STREAM_END instead of Z_BUF_ERROR. * returning Z_STREAM_END instead of Z_BUF_ERROR.
*/ */
} else if (strm->avail_in == 0 && flush <= old_flush && } else if (strm->avail_in == 0 && RANK(flush) <= RANK(old_flush) &&
flush != Z_FINISH) { flush != Z_FINISH) {
ERR_RETURN(strm, Z_BUF_ERROR); ERR_RETURN(strm, Z_BUF_ERROR);
} }
@@ -850,6 +931,7 @@ int ZEXPORT deflate (strm, flush)
if (s->lookahead == 0) { if (s->lookahead == 0) {
s->strstart = 0; s->strstart = 0;
s->block_start = 0L; s->block_start = 0L;
s->insert = 0;
} }
} }
} }
@@ -945,12 +1027,12 @@ int ZEXPORT deflateCopy (dest, source)
ss = source->state; 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)); ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state));
if (ds == Z_NULL) return Z_MEM_ERROR; if (ds == Z_NULL) return Z_MEM_ERROR;
dest->state = (struct internal_state FAR *) ds; 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->strm = dest;
ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte)); ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte));
@@ -966,8 +1048,8 @@ int ZEXPORT deflateCopy (dest, source)
} }
/* following zmemcpy do not work for 16-bit MSDOS */ /* following zmemcpy do not work for 16-bit MSDOS */
zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte)); zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte));
zmemcpy(ds->prev, ss->prev, ds->w_size * sizeof(Pos)); zmemcpy((voidpf)ds->prev, (voidpf)ss->prev, ds->w_size * sizeof(Pos));
zmemcpy(ds->head, ss->head, ds->hash_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); zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size);
ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf); ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf);
@@ -1001,15 +1083,15 @@ local int read_buf(strm, buf, size)
strm->avail_in -= len; strm->avail_in -= len;
zmemcpy(buf, strm->next_in, len);
if (strm->state->wrap == 1) { if (strm->state->wrap == 1) {
strm->adler = adler32(strm->adler, strm->next_in, len); strm->adler = adler32(strm->adler, buf, len);
} }
#ifdef GZIP #ifdef GZIP
else if (strm->state->wrap == 2) { else if (strm->state->wrap == 2) {
strm->adler = crc32(strm->adler, strm->next_in, len); strm->adler = crc32(strm->adler, buf, len);
} }
#endif #endif
zmemcpy(buf, strm->next_in, len);
strm->next_in += len; strm->next_in += len;
strm->total_in += len; strm->total_in += len;
@@ -1036,6 +1118,7 @@ local void lm_init (s)
s->strstart = 0; s->strstart = 0;
s->block_start = 0L; s->block_start = 0L;
s->lookahead = 0; s->lookahead = 0;
s->insert = 0;
s->match_length = s->prev_length = MIN_MATCH-1; s->match_length = s->prev_length = MIN_MATCH-1;
s->match_available = 0; s->match_available = 0;
s->ins_h = 0; s->ins_h = 0;
@@ -1310,6 +1393,8 @@ local void fill_window(s)
unsigned more; /* Amount of free space at the end of the window. */ unsigned more; /* Amount of free space at the end of the window. */
uInt wsize = s->w_size; uInt wsize = s->w_size;
Assert(s->lookahead < MIN_LOOKAHEAD, "already enough lookahead");
do { do {
more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart); more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart);
@@ -1362,7 +1447,7 @@ local void fill_window(s)
#endif #endif
more += wsize; more += wsize;
} }
if (s->strm->avail_in == 0) return; if (s->strm->avail_in == 0) break;
/* If there was no sliding: /* If there was no sliding:
* strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 && * strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 &&
@@ -1381,12 +1466,24 @@ local void fill_window(s)
s->lookahead += n; s->lookahead += n;
/* Initialize the hash value now that we have some input: */ /* Initialize the hash value now that we have some input: */
if (s->lookahead >= MIN_MATCH) { if (s->lookahead + s->insert >= MIN_MATCH) {
s->ins_h = s->window[s->strstart]; uInt str = s->strstart - s->insert;
UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]); s->ins_h = s->window[str];
UPDATE_HASH(s, s->ins_h, s->window[str + 1]);
#if MIN_MATCH != 3 #if MIN_MATCH != 3
Call UPDATE_HASH() MIN_MATCH-3 more times Call UPDATE_HASH() MIN_MATCH-3 more times
#endif #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, /* 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. * but this is not important since only literal bytes will be emitted.
@@ -1427,6 +1524,9 @@ local void fill_window(s)
s->high_water += init; s->high_water += init;
} }
} }
Assert((ulg)s->strstart <= s->window_size - MIN_LOOKAHEAD,
"not enough room for search");
} }
/* =========================================================================== /* ===========================================================================
@@ -1506,8 +1606,14 @@ local block_state deflate_stored(s, flush)
FLUSH_BLOCK(s, 0); FLUSH_BLOCK(s, 0);
} }
} }
FLUSH_BLOCK(s, flush == Z_FINISH); s->insert = 0;
return flush == Z_FINISH ? finish_done : block_done; if (flush == Z_FINISH) {
FLUSH_BLOCK(s, 1);
return finish_done;
}
if ((long)s->strstart > s->block_start)
FLUSH_BLOCK(s, 0);
return block_done;
} }
/* =========================================================================== /* ===========================================================================
@@ -1603,8 +1709,14 @@ local block_state deflate_fast(s, flush)
} }
if (bflush) FLUSH_BLOCK(s, 0); if (bflush) FLUSH_BLOCK(s, 0);
} }
FLUSH_BLOCK(s, flush == Z_FINISH); s->insert = s->strstart < MIN_MATCH-1 ? s->strstart : MIN_MATCH-1;
return flush == Z_FINISH ? finish_done : block_done; if (flush == Z_FINISH) {
FLUSH_BLOCK(s, 1);
return finish_done;
}
if (s->last_lit)
FLUSH_BLOCK(s, 0);
return block_done;
} }
#ifndef FASTEST #ifndef FASTEST
@@ -1728,8 +1840,14 @@ local block_state deflate_slow(s, flush)
_tr_tally_lit(s, s->window[s->strstart-1], bflush); _tr_tally_lit(s, s->window[s->strstart-1], bflush);
s->match_available = 0; s->match_available = 0;
} }
FLUSH_BLOCK(s, flush == Z_FINISH); s->insert = s->strstart < MIN_MATCH-1 ? s->strstart : MIN_MATCH-1;
return flush == Z_FINISH ? finish_done : block_done; if (flush == Z_FINISH) {
FLUSH_BLOCK(s, 1);
return finish_done;
}
if (s->last_lit)
FLUSH_BLOCK(s, 0);
return block_done;
} }
#endif /* FASTEST */ #endif /* FASTEST */
@@ -1749,11 +1867,11 @@ local block_state deflate_rle(s, flush)
for (;;) { for (;;) {
/* Make sure that we always have enough lookahead, except /* Make sure that we always have enough lookahead, except
* at the end of the input file. We need MAX_MATCH bytes * 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); fill_window(s);
if (s->lookahead < MAX_MATCH && flush == Z_NO_FLUSH) { if (s->lookahead <= MAX_MATCH && flush == Z_NO_FLUSH) {
return need_more; return need_more;
} }
if (s->lookahead == 0) break; /* flush the current block */ if (s->lookahead == 0) break; /* flush the current block */
@@ -1776,6 +1894,7 @@ local block_state deflate_rle(s, flush)
if (s->match_length > s->lookahead) if (s->match_length > s->lookahead)
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 */ /* Emit match if have run of MIN_MATCH or longer, else emit literal */
@@ -1796,8 +1915,14 @@ local block_state deflate_rle(s, flush)
} }
if (bflush) FLUSH_BLOCK(s, 0); if (bflush) FLUSH_BLOCK(s, 0);
} }
FLUSH_BLOCK(s, flush == Z_FINISH); s->insert = 0;
return flush == Z_FINISH ? finish_done : block_done; if (flush == Z_FINISH) {
FLUSH_BLOCK(s, 1);
return finish_done;
}
if (s->last_lit)
FLUSH_BLOCK(s, 0);
return block_done;
} }
/* =========================================================================== /* ===========================================================================
@@ -1829,6 +1954,12 @@ local block_state deflate_huff(s, flush)
s->strstart++; s->strstart++;
if (bflush) FLUSH_BLOCK(s, 0); if (bflush) FLUSH_BLOCK(s, 0);
} }
FLUSH_BLOCK(s, flush == Z_FINISH); s->insert = 0;
return flush == Z_FINISH ? finish_done : block_done; if (flush == Z_FINISH) {
FLUSH_BLOCK(s, 1);
return finish_done;
}
if (s->last_lit)
FLUSH_BLOCK(s, 0);
return block_done;
} }

12
Foundation/src/deflate.h
View File

@@ -1,5 +1,5 @@
/* deflate.h -- internal compression state /* deflate.h -- internal compression state
* 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
*/ */
@@ -8,7 +8,7 @@
subject to change. Applications should only use zlib.h. subject to change. Applications should only use zlib.h.
*/ */
/* @(#) $Id: //poco/1.4/Foundation/src/deflate.h#2 $ */ /* @(#) $Id$ */
#ifndef DEFLATE_H #ifndef DEFLATE_H
#define DEFLATE_H #define DEFLATE_H
@@ -48,6 +48,9 @@
#define MAX_BITS 15 #define MAX_BITS 15
/* All codes must not exceed MAX_BITS bits */ /* All codes must not exceed MAX_BITS bits */
#define Buf_size 16
/* size of bit buffer in bi_buf */
#define INIT_STATE 42 #define INIT_STATE 42
#define EXTRA_STATE 69 #define EXTRA_STATE 69
#define NAME_STATE 73 #define NAME_STATE 73
@@ -188,7 +191,7 @@ typedef struct internal_state {
int nice_match; /* Stop searching when current match exceeds this */ int nice_match; /* Stop searching when current match exceeds this */
/* used by trees.c: */ /* 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_ltree[HEAP_SIZE]; /* literal and length tree */
struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance 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 */ struct ct_data_s bl_tree[2*BL_CODES+1]; /* Huffman tree for bit lengths */
@@ -244,7 +247,7 @@ typedef struct internal_state {
ulg opt_len; /* bit length of current block with optimal trees */ ulg opt_len; /* bit length of current block with optimal trees */
ulg static_len; /* bit length of current block with static trees */ ulg static_len; /* bit length of current block with static trees */
uInt matches; /* number of string matches in current block */ 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 DEBUG
ulg compressed_len; /* total bit length of compressed file mod 2^32 */ ulg compressed_len; /* total bit length of compressed file mod 2^32 */
@@ -294,6 +297,7 @@ void ZLIB_INTERNAL _tr_init OF((deflate_state *s));
int ZLIB_INTERNAL _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc)); 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, void ZLIB_INTERNAL _tr_flush_block OF((deflate_state *s, charf *buf,
ulg stored_len, int last)); 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_align OF((deflate_state *s));
void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf, void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf,
ulg stored_len, int last)); ulg stored_len, int last));

14
Foundation/src/infback.c
View File

@@ -1,5 +1,5 @@
/* infback.c -- inflate using a call-back interface /* infback.c -- inflate using a call-back interface
* Copyright (C) 1995-2009 Mark Adler * Copyright (C) 1995-2011 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
@@ -42,10 +42,19 @@ int stream_size;
return Z_STREAM_ERROR; return Z_STREAM_ERROR;
strm->msg = Z_NULL; /* in case we return an error */ strm->msg = Z_NULL; /* in case we return an error */
if (strm->zalloc == (alloc_func)0) { if (strm->zalloc == (alloc_func)0) {
#ifdef Z_SOLO
return Z_STREAM_ERROR;
#else
strm->zalloc = zcalloc; strm->zalloc = zcalloc;
strm->opaque = (voidpf)0; 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, state = (struct inflate_state FAR *)ZALLOC(strm, 1,
sizeof(struct inflate_state)); sizeof(struct inflate_state));
if (state == Z_NULL) return Z_MEM_ERROR; if (state == Z_NULL) return Z_MEM_ERROR;
@@ -394,7 +403,6 @@ void FAR *out_desc;
PULLBYTE(); PULLBYTE();
} }
if (here.val < 16) { if (here.val < 16) {
NEEDBITS(here.bits);
DROPBITS(here.bits); DROPBITS(here.bits);
state->lens[state->have++] = here.val; state->lens[state->have++] = here.val;
} }

6
Foundation/src/inffixed.h
View File

@@ -2,9 +2,9 @@
* Generated automatically by makefixed(). * Generated automatically by makefixed().
*/ */
/* WARNING: this file should *not* be used by applications. It /* WARNING: this file should *not* be used by applications.
is part of the implementation of the compression library and It is part of the implementation of this library and is
is subject to change. Applications should only use zlib.h. subject to change. Applications should only use zlib.h.
*/ */
static const code lenfix[512] = { static const code lenfix[512] = {

90
Foundation/src/inflate.c
View File

@@ -1,5 +1,5 @@
/* inflate.c -- zlib decompression /* inflate.c -- zlib decompression
* Copyright (C) 1995-2010 Mark Adler * Copyright (C) 1995-2012 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
@@ -100,7 +100,7 @@ local int updatewindow OF((z_streamp strm, unsigned out));
local unsigned syncsearch OF((unsigned FAR *have, unsigned char FAR *buf, local unsigned syncsearch OF((unsigned FAR *have, unsigned char FAR *buf,
unsigned len)); unsigned len));
int ZEXPORT inflateReset(strm) int ZEXPORT inflateResetKeep(strm)
z_streamp strm; z_streamp strm;
{ {
struct inflate_state FAR *state; struct inflate_state FAR *state;
@@ -109,15 +109,13 @@ z_streamp strm;
state = (struct inflate_state FAR *)strm->state; state = (struct inflate_state FAR *)strm->state;
strm->total_in = strm->total_out = state->total = 0; strm->total_in = strm->total_out = state->total = 0;
strm->msg = Z_NULL; 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->mode = HEAD;
state->last = 0; state->last = 0;
state->havedict = 0; state->havedict = 0;
state->dmax = 32768U; state->dmax = 32768U;
state->head = Z_NULL; state->head = Z_NULL;
state->wsize = 0;
state->whave = 0;
state->wnext = 0;
state->hold = 0; state->hold = 0;
state->bits = 0; state->bits = 0;
state->lencode = state->distcode = state->next = state->codes; state->lencode = state->distcode = state->next = state->codes;
@@ -127,6 +125,19 @@ z_streamp strm;
return Z_OK; return Z_OK;
} }
int ZEXPORT inflateReset(strm)
z_streamp strm;
{
struct inflate_state FAR *state;
if (strm == Z_NULL || strm->state == Z_NULL) 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) int ZEXPORT inflateReset2(strm, windowBits)
z_streamp strm; z_streamp strm;
int windowBits; int windowBits;
@@ -180,10 +191,19 @@ int stream_size;
if (strm == Z_NULL) return Z_STREAM_ERROR; if (strm == Z_NULL) return Z_STREAM_ERROR;
strm->msg = Z_NULL; /* in case we return an error */ strm->msg = Z_NULL; /* in case we return an error */
if (strm->zalloc == (alloc_func)0) { if (strm->zalloc == (alloc_func)0) {
#ifdef Z_SOLO
return Z_STREAM_ERROR;
#else
strm->zalloc = zcalloc; strm->zalloc = zcalloc;
strm->opaque = (voidpf)0; 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 *) state = (struct inflate_state FAR *)
ZALLOC(strm, 1, sizeof(struct inflate_state)); ZALLOC(strm, 1, sizeof(struct inflate_state));
if (state == Z_NULL) return Z_MEM_ERROR; if (state == Z_NULL) return Z_MEM_ERROR;
@@ -321,8 +341,8 @@ void makefixed()
low = 0; low = 0;
for (;;) { for (;;) {
if ((low % 7) == 0) printf("\n "); if ((low % 7) == 0) printf("\n ");
printf("{%u,%u,%d}", state.lencode[low].op, state.lencode[low].bits, printf("{%u,%u,%d}", (low & 127) == 99 ? 64 : state.lencode[low].op,
state.lencode[low].val); state.lencode[low].bits, state.lencode[low].val);
if (++low == size) break; if (++low == size) break;
putchar(','); putchar(',');
} }
@@ -499,11 +519,6 @@ unsigned out;
bits -= bits & 7; \ bits -= bits & 7; \
} while (0) } 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 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 much output data as possible before returning. The state machine is
@@ -797,7 +812,7 @@ int flush;
#endif #endif
case DICTID: case DICTID:
NEEDBITS(32); NEEDBITS(32);
strm->adler = state->check = REVERSE(hold); strm->adler = state->check = ZSWAP32(hold);
INITBITS(); INITBITS();
state->mode = DICT; state->mode = DICT;
case DICT: case DICT:
@@ -925,7 +940,6 @@ int flush;
PULLBYTE(); PULLBYTE();
} }
if (here.val < 16) { if (here.val < 16) {
NEEDBITS(here.bits);
DROPBITS(here.bits); DROPBITS(here.bits);
state->lens[state->have++] = here.val; state->lens[state->have++] = here.val;
} }
@@ -1170,7 +1184,7 @@ int flush;
#ifdef GUNZIP #ifdef GUNZIP
state->flags ? hold : state->flags ? hold :
#endif #endif
REVERSE(hold)) != state->check) { ZSWAP32(hold)) != state->check) {
strm->msg = (char *)"incorrect data check"; strm->msg = (char *)"incorrect data check";
state->mode = BAD; state->mode = BAD;
break; break;
@@ -1214,7 +1228,8 @@ int flush;
*/ */
inf_leave: inf_leave:
RESTORE(); RESTORE();
if (state->wsize || (state->mode < CHECK && out != strm->avail_out)) if (state->wsize || (out != strm->avail_out && state->mode < BAD &&
(state->mode < CHECK || flush != Z_FINISH)))
if (updatewindow(strm, out)) { if (updatewindow(strm, out)) {
state->mode = MEM; state->mode = MEM;
return Z_MEM_ERROR; return Z_MEM_ERROR;
@@ -1255,7 +1270,10 @@ const Bytef *dictionary;
uInt dictLength; uInt dictLength;
{ {
struct inflate_state FAR *state; struct inflate_state FAR *state;
unsigned long id; unsigned long dictid;
unsigned char *next;
unsigned avail;
int ret;
/* check state */ /* check state */
if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
@@ -1263,29 +1281,27 @@ uInt dictLength;
if (state->wrap != 0 && state->mode != DICT) if (state->wrap != 0 && state->mode != DICT)
return Z_STREAM_ERROR; return Z_STREAM_ERROR;
/* check for correct dictionary id */ /* check for correct dictionary identifier */
if (state->mode == DICT) { if (state->mode == DICT) {
id = adler32(0L, Z_NULL, 0); dictid = adler32(0L, Z_NULL, 0);
id = adler32(id, dictionary, dictLength); dictid = adler32(dictid, dictionary, dictLength);
if (id != state->check) if (dictid != state->check)
return Z_DATA_ERROR; return Z_DATA_ERROR;
} }
/* copy dictionary to window */ /* copy dictionary to window using updatewindow(), which will amend the
if (updatewindow(strm, strm->avail_out)) { existing dictionary if appropriate */
next = strm->next_out;
avail = strm->avail_out;
strm->next_out = (Bytef *)dictionary + dictLength;
strm->avail_out = 0;
ret = updatewindow(strm, dictLength);
strm->avail_out = avail;
strm->next_out = next;
if (ret) {
state->mode = MEM; state->mode = MEM;
return Z_MEM_ERROR; 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; state->havedict = 1;
Tracev((stderr, "inflate: dictionary set\n")); Tracev((stderr, "inflate: dictionary set\n"));
return Z_OK; return Z_OK;
@@ -1433,8 +1449,8 @@ z_streamp source;
} }
/* copy state */ /* copy state */
zmemcpy(dest, source, sizeof(z_stream)); zmemcpy((voidpf)dest, (voidpf)source, sizeof(z_stream));
zmemcpy(copy, state, sizeof(struct inflate_state)); zmemcpy((voidpf)copy, (voidpf)state, sizeof(struct inflate_state));
if (state->lencode >= state->codes && if (state->lencode >= state->codes &&
state->lencode <= state->codes + ENOUGH - 1) { state->lencode <= state->codes + ENOUGH - 1) {
copy->lencode = copy->codes + (state->lencode - state->codes); copy->lencode = copy->codes + (state->lencode - state->codes);

40
Foundation/src/inftrees.c
View File

@@ -1,5 +1,5 @@
/* inftrees.c -- generate Huffman trees for efficient decoding /* inftrees.c -- generate Huffman trees for efficient decoding
* Copyright (C) 1995-2010 Mark Adler * Copyright (C) 1995-2012 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
@@ -9,7 +9,7 @@
#define MAXBITS 15 #define MAXBITS 15
const char inflate_copyright[] = const char inflate_copyright[] =
" inflate 1.2.5 Copyright 1995-2010 Mark Adler "; " inflate 1.2.7 Copyright 1995-2012 Mark Adler ";
/* /*
If you use the zlib library in a product, an acknowledgment is welcome 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 in the documentation of your product. If for some reason you cannot
@@ -62,7 +62,7 @@ unsigned short FAR *work;
35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; 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 */ 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, 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, 78, 68};
static const unsigned short dbase[32] = { /* Distance codes 0..29 base */ 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, 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, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
@@ -289,38 +289,14 @@ unsigned short FAR *work;
} }
} }
/* /* fill in remaining table entry if code is incomplete (guaranteed to have
Fill in rest of table for incomplete codes. This loop is similar to the at most one remaining entry, since if the code is incomplete, the
loop above in incrementing huff for table indices. It is assumed that maximum code length that was allowed to get this far is one bit) */
len is equal to curr + drop, so there is no loop needed to increment if (huff != 0) {
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.op = (unsigned char)64; /* invalid code marker */
here.bits = (unsigned char)(len - drop); here.bits = (unsigned char)(len - drop);
here.val = (unsigned short)0; here.val = (unsigned short)0;
while (huff != 0) { next[huff] = here;
/* 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;
} }
/* set return parameters */ /* set return parameters */

42
Foundation/src/trees.c
View File

@@ -1,5 +1,5 @@
/* trees.c -- output deflated data using Huffman coding /* trees.c -- output deflated data using Huffman coding
* Copyright (C) 1995-2010 Jean-loup Gailly * Copyright (C) 1995-2012 Jean-loup Gailly
* detect_data_type() function provided freely by Cosmin Truta, 2006 * detect_data_type() function provided freely by Cosmin Truta, 2006
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
@@ -30,7 +30,7 @@
* Addison-Wesley, 1983. ISBN 0-201-06672-6. * Addison-Wesley, 1983. ISBN 0-201-06672-6.
*/ */
/* @(#) $Id: //poco/1.4/Foundation/src/trees.c#2 $ */ /* @(#) $Id$ */
/* #define GEN_TREES_H */ /* #define GEN_TREES_H */
@@ -74,11 +74,6 @@ local const uch bl_order[BL_CODES]
* probability, to avoid transmitting the lengths for unused bit length 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. * Local data. These are initialized only once.
*/ */
@@ -399,7 +394,6 @@ void ZLIB_INTERNAL _tr_init(s)
s->bi_buf = 0; s->bi_buf = 0;
s->bi_valid = 0; s->bi_valid = 0;
s->last_eob_len = 8; /* enough lookahead for inflate */
#ifdef DEBUG #ifdef DEBUG
s->compressed_len = 0L; s->compressed_len = 0L;
s->bits_sent = 0L; s->bits_sent = 0L;
@@ -882,16 +876,18 @@ void ZLIB_INTERNAL _tr_stored_block(s, buf, stored_len, last)
copy_block(s, buf, (unsigned)stored_len, 1); /* with header */ 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. * Send one empty static block to give enough lookahead for inflate.
* This takes 10 bits, of which 7 may remain in the bit buffer. * 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) void ZLIB_INTERNAL _tr_align(s)
deflate_state *s; deflate_state *s;
@@ -902,20 +898,6 @@ void ZLIB_INTERNAL _tr_align(s)
s->compressed_len += 10L; /* 3 for block type, 7 for EOB */ s->compressed_len += 10L; /* 3 for block type, 7 for EOB */
#endif #endif
bi_flush(s); 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;
} }
/* =========================================================================== /* ===========================================================================
@@ -1118,7 +1100,6 @@ local void compress_block(s, ltree, dtree)
} while (lx < s->last_lit); } while (lx < s->last_lit);
send_code(s, END_BLOCK, ltree); send_code(s, END_BLOCK, ltree);
s->last_eob_len = ltree[END_BLOCK].Len;
} }
/* =========================================================================== /* ===========================================================================
@@ -1226,7 +1207,6 @@ local void copy_block(s, buf, len, header)
int header; /* true if block header must be written */ int header; /* true if block header must be written */
{ {
bi_windup(s); /* align on byte boundary */ bi_windup(s); /* align on byte boundary */
s->last_eob_len = 8; /* enough lookahead for inflate */
if (header) { if (header) {
put_short(s, (ush)len); put_short(s, (ush)len);

112
Foundation/src/zconf.h
View File

@@ -1,9 +1,9 @@
/* 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
*/ */
/* @(#) $Id: //poco/1.4/Foundation/src/zconf.h#4 $ */ /* @(#) $Id$ */
#ifndef ZCONF_H #ifndef ZCONF_H
#define ZCONF_H #define ZCONF_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
@@ -356,14 +388,45 @@ typedef uLong FAR uLongf;
typedef Byte *voidp; typedef Byte *voidp;
#endif #endif
/* ./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 */ #ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */
# define Z_HAVE_UNISTD_H # define Z_HAVE_UNISTD_H
#endif #endif
#ifndef _WIN32_WCE #ifdef HAVE_STDARG_H /* may be set to #if 1 by ./configure */
#ifdef STDC # define Z_HAVE_STDARG_H
# include <sys/types.h> /* for off_t */
#endif #endif
#ifdef STDC
# ifndef Z_SOLO
# include <sys/types.h> /* for off_t */
# endif
#endif
#ifdef _WIN32
# include <stddef.h> /* for wchar_t */
#endif #endif
/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and /* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
@@ -372,21 +435,38 @@ 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
# ifndef z_off_t # ifndef z_off_t
# 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" */
@@ -396,18 +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
Foundation/src/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, May 2nd, 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"
#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,
@@ -688,9 +702,29 @@ 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,
int bits, int bits,
int value)); int value));
@@ -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
} }

12
Foundation/src/zutil.c
View File

@@ -1,11 +1,14 @@
/* zutil.c -- target dependent utility functions for the compression library /* zutil.c -- target dependent utility functions for the compression library
* Copyright (C) 1995-2005, 2010 Jean-loup Gailly. * Copyright (C) 1995-2005, 2010, 2011, 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
*/ */
/* @(#) $Id: //poco/1.4/Foundation/src/zutil.c#2 $ */ /* @(#) $Id$ */
#include "zutil.h" #include "zutil.h"
#ifndef Z_SOLO
# include "gzguts.h"
#endif
#ifndef NO_DUMMY_DECL #ifndef NO_DUMMY_DECL
struct internal_state {int dummy;}; /* for buggy compilers */ struct internal_state {int dummy;}; /* for buggy compilers */
@@ -85,7 +88,7 @@ uLong ZEXPORT zlibCompileFlags()
#ifdef FASTEST #ifdef FASTEST
flags += 1L << 21; flags += 1L << 21;
#endif #endif
#ifdef STDC #if defined(STDC) || defined(Z_HAVE_STDARG_H)
# ifdef NO_vsnprintf # ifdef NO_vsnprintf
flags += 1L << 25; flags += 1L << 25;
# ifdef HAS_vsprintf_void # ifdef HAS_vsprintf_void
@@ -181,6 +184,7 @@ void ZLIB_INTERNAL zmemzero(dest, len)
} }
#endif #endif
#ifndef Z_SOLO
#ifdef SYS16BIT #ifdef SYS16BIT
@@ -316,3 +320,5 @@ void ZLIB_INTERNAL zcfree (opaque, ptr)
} }
#endif /* MY_ZCALLOC */ #endif /* MY_ZCALLOC */
#endif /* !Z_SOLO */

70
Foundation/src/zutil.h
View File

@@ -1,5 +1,5 @@
/* zutil.h -- internal interface and configuration of the compression library /* zutil.h -- internal interface and configuration of the 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
*/ */
@@ -8,12 +8,12 @@
subject to change. Applications should only use zlib.h. subject to change. Applications should only use zlib.h.
*/ */
/* @(#) $Id: //poco/1.4/Foundation/src/zutil.h#2 $ */ /* @(#) $Id$ */
#ifndef ZUTIL_H #ifndef ZUTIL_H
#define ZUTIL_H #define ZUTIL_H
#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ) #ifdef HAVE_HIDDEN
# define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) # define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
#else #else
# define ZLIB_INTERNAL # define ZLIB_INTERNAL
@@ -21,7 +21,7 @@
#include "zlib.h" #include "zlib.h"
#ifdef STDC #if defined(STDC) && !defined(Z_SOLO)
# if !(defined(_WIN32_WCE) && defined(_MSC_VER)) # if !(defined(_WIN32_WCE) && defined(_MSC_VER))
# include <stddef.h> # include <stddef.h>
# endif # endif
@@ -29,6 +29,10 @@
# include <stdlib.h> # include <stdlib.h>
#endif #endif
#ifdef Z_SOLO
typedef long ptrdiff_t; /* guess -- will be caught if guess is wrong */
#endif
#ifndef local #ifndef local
# define local static # define local static
#endif #endif
@@ -78,6 +82,7 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
# define OS_CODE 0x00 # define OS_CODE 0x00
# ifndef Z_SOLO
# if defined(__TURBOC__) || defined(__BORLANDC__) # if defined(__TURBOC__) || defined(__BORLANDC__)
# if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) # if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
/* Allow compilation with ANSI keywords only enabled */ /* Allow compilation with ANSI keywords only enabled */
@@ -89,6 +94,7 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
# else /* MSC or DJGPP */ # else /* MSC or DJGPP */
# include <malloc.h> # include <malloc.h>
# endif # endif
# endif
#endif #endif
#ifdef AMIGA #ifdef AMIGA
@@ -107,13 +113,14 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
#ifdef OS2 #ifdef OS2
# define OS_CODE 0x06 # define OS_CODE 0x06
# ifdef M_I86 # if defined(M_I86) && !defined(Z_SOLO)
# include <malloc.h> # include <malloc.h>
# endif # endif
#endif #endif
#if defined(MACOS) || defined(TARGET_OS_MAC) #if defined(MACOS) || defined(TARGET_OS_MAC)
# define OS_CODE 0x07 # define OS_CODE 0x07
# ifndef Z_SOLO
# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
# include <unix.h> /* for fdopen */ # include <unix.h> /* for fdopen */
# else # else
@@ -121,6 +128,7 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
# define fdopen(fd,mode) NULL /* No fdopen() */ # define fdopen(fd,mode) NULL /* No fdopen() */
# endif # endif
# endif # endif
# endif
#endif #endif
#ifdef TOPS20 #ifdef TOPS20
@@ -153,14 +161,14 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
# endif # endif
#endif #endif
#if defined(__BORLANDC__) #if defined(__BORLANDC__) && !defined(MSDOS)
#pragma warn -8004 #pragma warn -8004
#pragma warn -8008 #pragma warn -8008
#pragma warn -8066 #pragma warn -8066
#endif #endif
/* provide prototypes for these when building zlib without LFS */ /* 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 adler32_combine64 OF((uLong, uLong, z_off_t));
ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
#endif #endif
@@ -177,42 +185,7 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
/* functions */ /* functions */
#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550) #if defined(pyr) || defined(Z_SOLO)
# 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)
# define NO_MEMCPY # define NO_MEMCPY
#endif #endif
#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
@@ -261,14 +234,19 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
# define Tracecv(c,x) # define Tracecv(c,x)
#endif #endif
#ifndef Z_SOLO
voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items, voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
unsigned size)); unsigned size));
void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr)); void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr));
#endif
#define ZALLOC(strm, items, size) \ #define ZALLOC(strm, items, size) \
(*((strm)->zalloc))((strm)->opaque, (items), (size)) (*((strm)->zalloc))((strm)->opaque, (items), (size))
#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
#define TRY_FREE(s, p) {if (p) ZFREE(s, p);} #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 */ #endif /* ZUTIL_H */