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Commit 19ce8c7f authored by Andrey Kamaev's avatar Andrey Kamaev
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#1609 zlib is updated to 1.2.6

parent b8eeb019
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3rdparty/zlib/.cvsignore deleted 100644 → 0
View file @ b8eeb019
*.aps *.plg *.o *.lo Makefile .libs *.user
3rdparty/zlib/CMakeLists.txt
View file @ 19ce8c7f
......@@ -2,31 +2,94 @@
# CMake file for zlib. See root CMakeLists.txt
#
# ----------------------------------------------------------------------------
PROJECT(zlib)
# List of C++ files:
project(zlib C)
include_directories("${CMAKE_CURRENT_SOURCE_DIR}")
include(CheckTypeSize)
include(CheckFunctionExists)
include(CheckIncludeFile)
include(CheckCSourceCompiles)
file(GLOB lib_srcs *.c)
file(GLOB lib_hdrs *.h)
include(CheckTypeSize)
include(CheckFunctionExists)
include(CheckIncludeFile)
include(CheckCSourceCompiles)
set(the_target "zlib")
#
# Check to see if we have large file support
#
check_type_size(off64_t OFF64_T)
if(HAVE_OFF64_T)
add_definitions(-D_LARGEFILE64_SOURCE=1)
endif()
add_library(${the_target} STATIC ${lib_srcs} ${lib_hdrs})
#
# Check for fseeko
#
check_function_exists(fseeko HAVE_FSEEKO)
if(NOT HAVE_FSEEKO)
add_definitions(-DNO_FSEEKO)
endif()
#
# Check for unistd.h
#
check_include_file(unistd.h Z_HAVE_UNISTD_H)
if(MSVC)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /W3")
add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
endif()
configure_file("${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein"
"${OpenCV_BINARY_DIR}/zconf.h" @ONLY)
include_directories("${CMAKE_CURRENT_SOURCE_DIR}")
set(ZLIB_PUBLIC_HDRS
"${OpenCV_BINARY_DIR}/zconf.h"
zlib.h
)
set(ZLIB_PRIVATE_HDRS
crc32.h
deflate.h
gzguts.h
inffast.h
inffixed.h
inflate.h
inftrees.h
trees.h
zutil.h
)
set(ZLIB_SRCS
adler32.c
compress.c
crc32.c
deflate.c
gzclose.c
gzlib.c
gzread.c
gzwrite.c
inflate.c
infback.c
inftrees.c
inffast.c
trees.c
uncompr.c
zutil.c
)
set(the_target "zlib")
add_library(${the_target} STATIC ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
set_target_properties(${the_target} PROPERTIES DEFINE_SYMBOL ZLIB_DLL)
if(UNIX)
if(CMAKE_COMPILER_IS_GNUCXX OR CV_ICC)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
endif()
endif()
set_target_properties(${the_target}
PROPERTIES
set_target_properties(${the_target} PROPERTIES
OUTPUT_NAME "${the_target}"
DEBUG_POSTFIX "${OPENCV_DEBUG_POSTFIX}"
ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/3rdparty/${OPENCV_LIB_INSTALL_PATH}"
......@@ -37,6 +100,5 @@ if(ENABLE_SOLUTION_FOLDERS)
endif()
if(NOT BUILD_SHARED_LIBS)
install(TARGETS ${the_target}
ARCHIVE DESTINATION share/OpenCV/3rdparty/${OPENCV_LIB_INSTALL_PATH} COMPONENT main)
install(TARGETS ${the_target} ARCHIVE DESTINATION share/OpenCV/3rdparty/${OPENCV_LIB_INSTALL_PATH} COMPONENT main)
endif()
3rdparty/zlib/README
View file @ 19ce8c7f
ZLIB DATA COMPRESSION LIBRARY
zlib 1.2.5 is a general purpose data compression library. All the code is
zlib 1.2.6 is a general purpose data compression library. All the code is
thread safe. 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 (zlib format), rfc1951.txt (deflate format)
and rfc1952.txt (gzip format).
http://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and
rfc1952 (gzip format).
All functions of the compression library are documented in the file zlib.h
(volunteer to write man pages welcome, contact zlib@gzip.org). A usage example
of the library is given in the file example.c which also tests that the library
is working correctly. Another example is given in the file minigzip.c. The
compression library itself is composed of all source files except example.c and
minigzip.c.
of the library is given in the file test/example.c which also tests that
the library is working correctly. Another example is given in the file
test/minigzip.c. The compression library itself is composed of all source
files in the root directory.
To compile all files and run the test program, follow the instructions given at
the top of Makefile.in. In short "./configure; make test", and if that goes
well, "make install" should work for most flavors of Unix. For Windows, use one
of the special makefiles in win32/ or contrib/vstudio/ . For VMS, use
well, "make install" should work for most flavors of Unix. For Windows, use
one of the special makefiles in win32/ or contrib/vstudio/ . For VMS, use
make_vms.com.
Questions about zlib should be sent to <zlib@gzip.org>, or to Gilles Vollant
......@@ -31,7 +31,7 @@ Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan. 1997
issue of Dr. Dobb's Journal; a copy of the article is available at
http://marknelson.us/1997/01/01/zlib-engine/ .
The changes made in version 1.2.5 are documented in the file ChangeLog.
The changes made in version 1.2.6 are documented in the file ChangeLog.
Unsupported third party contributions are provided in directory contrib/ .
......@@ -44,7 +44,7 @@ http://search.cpan.org/~pmqs/IO-Compress-Zlib/ .
A Python interface to zlib written by A.M. Kuchling <amk@amk.ca> is
available in Python 1.5 and later versions, see
http://www.python.org/doc/lib/module-zlib.html .
http://docs.python.org/library/zlib.html .
zlib is built into tcl: http://wiki.tcl.tk/4610 .
......@@ -84,7 +84,7 @@ Acknowledgments:
Copyright notice:
(C) 1995-2010 Jean-loup Gailly and Mark Adler
(C) 1995-2012 Jean-loup Gailly and Mark Adler
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
......
3rdparty/zlib/adler32.c
View file @ 19ce8c7f
/* 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
*/
......@@ -9,9 +9,9 @@
#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
/* 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 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
# 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 { \
unsigned long tmp = a >> 16; \
a &= 0xffffUL; \
a += (tmp << 4) - tmp; \
} while (0)
# define MOD28(a) \
do { \
if (a >= (BASE << 16)) a -= (BASE << 16); \
if (a >= (BASE << 15)) a -= (BASE << 15); \
if (a >= (BASE << 14)) a -= (BASE << 14); \
if (a >= (BASE << 13)) a -= (BASE << 13); \
if (a >= (BASE << 12)) a -= (BASE << 12); \
if (a >= (BASE << 11)) a -= (BASE << 11); \
if (a >= (BASE << 10)) a -= (BASE << 10); \
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); \
CHOP(a); \
if (a >= BASE) a -= BASE; \
} while (0)
# define MOD4(a) \
# define MOD(a) \
do { \
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); \
CHOP(a); \
MOD28(a); \
} while (0)
# 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; \
} while (0)
#else
# define MOD(a) a %= BASE
# define MOD4(a) a %= BASE
# define MOD28(a) a %= BASE
# define MOD63(a) a %= BASE
#endif
/* ========================================================================= */
......@@ -92,7 +97,7 @@ uLong ZEXPORT adler32(adler, buf, len)
}
if (adler >= BASE)
adler -= BASE;
MOD4(sum2); /* only added so many BASE's */
MOD28(sum2); /* only added so many BASE's */
return adler | (sum2 << 16);
}
......@@ -137,8 +142,13 @@ local uLong adler32_combine_(adler1, adler2, len2)
unsigned long sum2;
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 */
rem = (unsigned)(len2 % BASE);
MOD63(len2); /* assumes len2 >= 0 */
rem = (unsigned)len2;
sum1 = adler1 & 0xffff;
sum2 = rem * sum1;
MOD(sum2);
......
3rdparty/zlib/crc32.c
View file @ 19ce8c7f
/* crc32.c -- compute the CRC-32 of a data stream
* Copyright (C) 1995-2006, 2010 Mark Adler
* Copyright (C) 1995-2006, 2010, 2011 Mark Adler
* 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
......@@ -17,6 +17,8 @@
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
one thread to use crc32().
DYNAMIC_CRC_TABLE and MAKECRCH can be #defined to write out crc32.h.
*/
#ifdef MAKECRCH
......@@ -53,6 +55,7 @@
/* Definitions for doing the crc four data bytes at a time. */
#ifdef BYFOUR
typedef u4 crc_table_t;
# define REV(w) ((((w)>>24)&0xff)+(((w)>>8)&0xff00)+ \
(((w)&0xff00)<<8)+(((w)&0xff)<<24))
local unsigned long crc32_little OF((unsigned long,
......@@ -61,6 +64,7 @@
const unsigned char FAR *, unsigned));
# define TBLS 8
#else
typedef unsigned long crc_table_t;
# define TBLS 1
#endif /* BYFOUR */
......@@ -68,16 +72,16 @@
local unsigned long gf2_matrix_times OF((unsigned long *mat,
unsigned long vec));
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
local volatile int crc_table_empty = 1;
local unsigned long FAR crc_table[TBLS][256];
local crc_table_t FAR crc_table[TBLS][256];
local void make_crc_table OF((void));
#ifdef MAKECRCH
local void write_table OF((FILE *, const unsigned long FAR *));
local void write_table OF((FILE *, const crc_table_t FAR *));
#endif /* MAKECRCH */
/*
Generate tables for a byte-wise 32-bit CRC calculation on the polynomial:
......@@ -107,9 +111,9 @@ local void make_crc_table OF((void));
*/
local void make_crc_table()
{
unsigned long c;
crc_table_t c;
int n, k;
unsigned long poly; /* polynomial exclusive-or pattern */
crc_table_t poly; /* polynomial exclusive-or pattern */
/* terms of polynomial defining this crc (except x^32): */
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};
......@@ -121,13 +125,13 @@ local void make_crc_table()
first = 0;
/* make exclusive-or pattern from polynomial (0xedb88320UL) */
poly = 0UL;
for (n = 0; n < sizeof(p)/sizeof(unsigned char); n++)
poly |= 1UL << (31 - p[n]);
poly = 0;
for (n = 0; n < (int)(sizeof(p)/sizeof(unsigned char)); n++)
poly |= (crc_table_t)1 << (31 - p[n]);
/* generate a crc for every 8-bit value */
for (n = 0; n < 256; n++) {
c = (unsigned long)n;
c = (crc_table_t)n;
for (k = 0; k < 8; k++)
c = c & 1 ? poly ^ (c >> 1) : c >> 1;
crc_table[0][n] = c;
......@@ -164,7 +168,7 @@ local void make_crc_table()
if (out == NULL) return;
fprintf(out, "/* crc32.h -- tables for rapid CRC calculation\n");
fprintf(out, " * Generated automatically by crc32.c\n */\n\n");
fprintf(out, "local const unsigned long FAR ");
fprintf(out, "local const crc_table_t FAR ");
fprintf(out, "crc_table[TBLS][256] =\n{\n {\n");
write_table(out, crc_table[0]);
# ifdef BYFOUR
......@@ -184,12 +188,13 @@ local void make_crc_table()
#ifdef MAKECRCH
local void write_table(out, table)
FILE *out;
const unsigned long FAR *table;
const crc_table_t FAR *table;
{
int 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" : ", "));
}
#endif /* MAKECRCH */
......
3rdparty/zlib/crc32.h
View file @ 19ce8c7f
......@@ -2,7 +2,7 @@
* Generated automatically by crc32.c
*/
local const unsigned long FAR crc_table[TBLS][256] =
local const crc_table_t FAR crc_table[TBLS][256] =
{
{
0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
......
3rdparty/zlib/deflate.c
View file @ 19ce8c7f
/* 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
*/
......@@ -37,7 +37,7 @@
* REFERENCES
*
* 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
* "Algorithms" by R. Sedgewick, Addison-Wesley, p252.
......@@ -52,7 +52,7 @@
#include "deflate.h"
const char deflate_copyright[] =
" deflate 1.2.5 Copyright 1995-2010 Jean-loup Gailly and Mark Adler ";
" deflate 1.2.6 Copyright 1995-2012 Jean-loup Gailly and Mark Adler ";
/*
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
......@@ -155,6 +155,9 @@ local const config configuration_table[10] = {
struct static_tree_desc_s {int dummy;}; /* for buggy compilers */
#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
* 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;
if (strm->zalloc == (alloc_func)0) {
#ifdef Z_SOLO
return Z_STREAM_ERROR;
#else
strm->zalloc = zcalloc;
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
if (level != 0) level = 1;
......@@ -314,43 +326,70 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
uInt dictLength;
{
deflate_state *s;
uInt length = dictLength;
uInt n;
IPos hash_head = 0;
uInt str, n;
int wrap;
unsigned avail;
unsigned char *next;
if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL ||
strm->state->wrap == 2 ||
(strm->state->wrap == 1 && strm->state->status != INIT_STATE))
if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL)
return Z_STREAM_ERROR;
s = strm->state;
if (s->wrap)
wrap = s->wrap;
if (wrap == 2 || (wrap == 1 && s->status != INIT_STATE) || s->lookahead)
return Z_STREAM_ERROR;
/* when using zlib wrappers, compute Adler-32 for provided dictionary */
if (wrap == 1)
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 (length > s->w_size) {
length = s->w_size;
dictionary += dictLength - length; /* use the tail of the dictionary */
/* if dictionary would fill window, just replace the history */
if (dictLength >= s->w_size) {
if (wrap == 0) { /* already empty otherwise */
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).
* s->lookahead stays null, so s->ins_h will be recomputed at the next
* call of fill_window.
*/
s->ins_h = s->window[0];
UPDATE_HASH(s, s->ins_h, s->window[1]);
for (n = 0; n <= length - MIN_MATCH; n++) {
INSERT_STRING(s, n, hash_head);
/* insert dictionary into window and hash */
avail = strm->avail_in;
next = strm->next_in;
strm->avail_in = dictLength;
strm->next_in = (Bytef *)dictionary;
fill_window(s);
while (s->lookahead >= MIN_MATCH) {
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;
}
/* ========================================================================= */
int ZEXPORT deflateReset (strm)
int ZEXPORT deflateResetKeep (strm)
z_streamp strm;
{
deflate_state *s;
......@@ -380,11 +419,22 @@ int ZEXPORT deflateReset (strm)
s->last_flush = Z_NO_FLUSH;
_tr_init(s);
lm_init(s);
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)
z_streamp strm;
......@@ -396,15 +446,43 @@ int ZEXPORT deflateSetHeader (strm, head)
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)
z_streamp strm;
int bits;
int value;
{
deflate_state *s;
int put;
if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
strm->state->bi_valid = bits;
strm->state->bi_buf = (ush)(value & ((1 << bits) - 1));
s = strm->state;
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;
}
......@@ -562,19 +640,22 @@ local void putShortMSB (s, b)
local void flush_pending(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 == 0) return;
zmemcpy(strm->next_out, strm->state->pending_out, len);
zmemcpy(strm->next_out, s->pending_out, len);
strm->next_out += len;
strm->state->pending_out += len;
s->pending_out += len;
strm->total_out += len;
strm->avail_out -= len;
strm->state->pending -= len;
if (strm->state->pending == 0) {
strm->state->pending_out = strm->state->pending_buf;
s->pending -= len;
if (s->pending == 0) {
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
* 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) {
ERR_RETURN(strm, Z_BUF_ERROR);
}
......@@ -850,6 +931,7 @@ int ZEXPORT deflate (strm, flush)
if (s->lookahead == 0) {
s->strstart = 0;
s->block_start = 0L;
s->insert = 0;
}
}
}
......@@ -945,12 +1027,12 @@ int ZEXPORT deflateCopy (dest, source)
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));
if (ds == Z_NULL) return Z_MEM_ERROR;
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->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 */
zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte));
zmemcpy(ds->prev, ss->prev, ds->w_size * sizeof(Pos));
zmemcpy(ds->head, ss->head, ds->hash_size * sizeof(Pos));
zmemcpy((voidpf)ds->prev, (voidpf)ss->prev, ds->w_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);
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;
zmemcpy(buf, strm->next_in, len);
if (strm->state->wrap == 1) {
strm->adler = adler32(strm->adler, strm->next_in, len);
strm->adler = adler32(strm->adler, buf, len);
}
#ifdef GZIP
else if (strm->state->wrap == 2) {
strm->adler = crc32(strm->adler, strm->next_in, len);
strm->adler = crc32(strm->adler, buf, len);
}
#endif
zmemcpy(buf, strm->next_in, len);
strm->next_in += len;
strm->total_in += len;
......@@ -1036,6 +1118,7 @@ local void lm_init (s)
s->strstart = 0;
s->block_start = 0L;
s->lookahead = 0;
s->insert = 0;
s->match_length = s->prev_length = MIN_MATCH-1;
s->match_available = 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. */
uInt wsize = s->w_size;
Assert(s->lookahead < MIN_LOOKAHEAD, "already enough lookahead");
do {
more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart);
......@@ -1362,7 +1447,7 @@ local void fill_window(s)
#endif
more += wsize;
}
if (s->strm->avail_in == 0) return;
if (s->strm->avail_in == 0) break;
/* If there was no sliding:
* strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 &&
......@@ -1381,12 +1466,24 @@ local void fill_window(s)
s->lookahead += n;
/* Initialize the hash value now that we have some input: */
if (s->lookahead >= MIN_MATCH) {
s->ins_h = s->window[s->strstart];
UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]);
if (s->lookahead + s->insert >= MIN_MATCH) {
uInt str = s->strstart - s->insert;
s->ins_h = s->window[str];
UPDATE_HASH(s, s->ins_h, s->window[str + 1]);
#if MIN_MATCH != 3
Call UPDATE_HASH() MIN_MATCH-3 more times
#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,
* 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;
}
}
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, flush == Z_FINISH);
return flush == Z_FINISH ? finish_done : block_done;
s->insert = 0;
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);
}
FLUSH_BLOCK(s, flush == Z_FINISH);
return flush == Z_FINISH ? finish_done : block_done;
s->insert = s->strstart < MIN_MATCH-1 ? s->strstart : MIN_MATCH-1;
if (flush == Z_FINISH) {
FLUSH_BLOCK(s, 1);
return finish_done;
}
if (s->last_lit)
FLUSH_BLOCK(s, 0);
return block_done;
}
#ifndef FASTEST
......@@ -1728,8 +1840,14 @@ local block_state deflate_slow(s, flush)
_tr_tally_lit(s, s->window[s->strstart-1], bflush);
s->match_available = 0;
}
FLUSH_BLOCK(s, flush == Z_FINISH);
return flush == Z_FINISH ? finish_done : block_done;
s->insert = s->strstart < MIN_MATCH-1 ? s->strstart : MIN_MATCH-1;
if (flush == Z_FINISH) {
FLUSH_BLOCK(s, 1);
return finish_done;
}
if (s->last_lit)
FLUSH_BLOCK(s, 0);
return block_done;
}
#endif /* FASTEST */
......@@ -1749,11 +1867,11 @@ local block_state deflate_rle(s, flush)
for (;;) {
/* Make sure that we always have enough lookahead, except
* 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);
if (s->lookahead < MAX_MATCH && flush == Z_NO_FLUSH) {
if (s->lookahead <= MAX_MATCH && flush == Z_NO_FLUSH) {
return need_more;
}
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)
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 */
......@@ -1796,8 +1915,14 @@ local block_state deflate_rle(s, flush)
}
if (bflush) FLUSH_BLOCK(s, 0);
}
FLUSH_BLOCK(s, flush == Z_FINISH);
return flush == Z_FINISH ? finish_done : block_done;
s->insert = 0;
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++;
if (bflush) FLUSH_BLOCK(s, 0);
}
FLUSH_BLOCK(s, flush == Z_FINISH);
return flush == Z_FINISH ? finish_done : block_done;
s->insert = 0;
if (flush == Z_FINISH) {
FLUSH_BLOCK(s, 1);
return finish_done;
}
if (s->last_lit)
FLUSH_BLOCK(s, 0);
return block_done;
}
3rdparty/zlib/deflate.h
View file @ 19ce8c7f
/* 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
*/
......@@ -48,6 +48,9 @@
#define MAX_BITS 15
/* All codes must not exceed MAX_BITS bits */
#define Buf_size 16
/* size of bit buffer in bi_buf */
#define INIT_STATE 42
#define EXTRA_STATE 69
#define NAME_STATE 73
......@@ -188,7 +191,7 @@ typedef struct internal_state {
int nice_match; /* Stop searching when current match exceeds this */
/* 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_dtree[2*D_CODES+1]; /* distance tree */
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 static_len; /* bit length of current block with static trees */
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
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));
void ZLIB_INTERNAL _tr_flush_block OF((deflate_state *s, charf *buf,
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_stored_block OF((deflate_state *s, charf *buf,
ulg stored_len, int last));
......
3rdparty/zlib/gzguts.h
View file @ 19ce8c7f
/* gzguts.h -- zlib internal header definitions for gz* operations
* Copyright (C) 2004, 2005, 2010 Mark Adler
* Copyright (C) 2004, 2005, 2010, 2011, 2012 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
......@@ -19,7 +19,7 @@
#endif
#include <stdio.h>
#include "zutil.h"
#include "zlib.h"
#ifdef STDC
# include <string.h>
# include <stdlib.h>
......@@ -27,17 +27,62 @@
#endif
#include <fcntl.h>
#ifdef __TURBOC__
# include <io.h>
#endif
#ifdef NO_DEFLATE /* for compatibility with old definition */
# define NO_GZCOMPRESS
#endif
#ifdef _MSC_VER
# include <io.h>
# define vsnprintf _vsnprintf
#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
# ifndef HAVE_VSNPRINTF
# define HAVE_VSNPRINTF
# endif
#endif
#ifdef __GNUC__
#include <unistd.h>
#if defined(__CYGWIN__)
# ifndef HAVE_VSNPRINTF
# define HAVE_VSNPRINTF
# endif
#endif
#if defined(MSDOS) && defined(__BORLANDC__) && (BORLANDC > 0x410)
# 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 )
# include <io.h>
# define vsnprintf _vsnprintf
# endif
# endif
# endif
# ifdef __SASC
# define NO_vsnprintf
# endif
# ifdef VMS
# define NO_vsnprintf
# endif
# ifdef __OS400__
# define NO_vsnprintf
# endif
# ifdef __MVS__
# define NO_vsnprintf
# endif
#endif
#ifndef local
......@@ -72,6 +117,13 @@
ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile));
#endif
/* default memLevel */
#if MAX_MEM_LEVEL >= 8
# define DEF_MEM_LEVEL 8
#else
# define DEF_MEM_LEVEL MAX_MEM_LEVEL
#endif
/* default i/o buffer size -- double this for output when reading */
#define GZBUFSIZE 8192
......@@ -88,23 +140,25 @@
/* internal gzip file state data structure */
typedef struct {
/* exposed contents for gzgetc() macro */
struct gzFile_s x; /* "x" for exposed */
/* x.have: number of bytes available at x.next */
/* x.next: next output data to deliver or write */
/* x.pos: current position in uncompressed data */
/* used for both reading and writing */
int mode; /* see gzip modes above */
int fd; /* file descriptor */
char *path; /* path or fd for error messages */
z_off64_t pos; /* current position in uncompressed data */
unsigned size; /* buffer size, zero if not allocated yet */
unsigned want; /* requested buffer size, default is GZBUFSIZE */
unsigned char *in; /* input buffer */
unsigned char *out; /* output buffer (double-sized when reading) */
unsigned char *next; /* next output data to deliver or write */
int direct; /* 0 if processing gzip, 1 if transparent */
/* just for reading */
unsigned have; /* amount of output data unused at next */
int eof; /* true if end of input file reached */
z_off64_t start; /* where the gzip data started, for rewinding */
z_off64_t raw; /* where the raw data started, for seeking */
int how; /* 0: get header, 1: copy, 2: decompress */
int direct; /* true if last read direct, false if gzip */
z_off64_t start; /* where the gzip data started, for rewinding */
int eof; /* true if end of input file reached */
int past; /* true if read requested past end */
/* just for writing */
int level; /* compression level */
int strategy; /* compression strategy */
......
3rdparty/zlib/gzlib.c
View file @ 19ce8c7f
/* gzlib.c -- zlib functions common to reading and writing gzip files
* Copyright (C) 2004, 2010 Mark Adler
* Copyright (C) 2004, 2010, 2011 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
#include "gzguts.h"
#if defined(_WIN32) && !defined(__BORLANDC__)
# define LSEEK _lseeki64
#else
#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
# define LSEEK lseek64
#else
# define LSEEK lseek
#endif
#endif
/* Local functions */
local void gz_reset OF((gz_statep));
......@@ -71,15 +75,15 @@ char ZLIB_INTERNAL *gz_strwinerror (error)
local void gz_reset(state)
gz_statep state;
{
state->x.have = 0; /* no output data available */
if (state->mode == GZ_READ) { /* for reading ... */
state->have = 0; /* no output data available */
state->eof = 0; /* not at end of file */
state->past = 0; /* have not read past end yet */
state->how = LOOK; /* look for gzip header */
state->direct = 1; /* default for empty file */
}
state->seek = 0; /* no seek request pending */
gz_error(state, Z_OK, NULL); /* clear error */
state->pos = 0; /* no uncompressed data yet */
state->x.pos = 0; /* no uncompressed data yet */
state->strm.avail_in = 0; /* no input data yet */
}
......@@ -91,6 +95,10 @@ local gzFile gz_open(path, fd, mode)
{
gz_statep state;
/* check input */
if (path == NULL)
return NULL;
/* allocate gzFile structure to return */
state = malloc(sizeof(gz_state));
if (state == NULL)
......@@ -103,6 +111,7 @@ local gzFile gz_open(path, fd, mode)
state->mode = GZ_NONE;
state->level = Z_DEFAULT_COMPRESSION;
state->strategy = Z_DEFAULT_STRATEGY;
state->direct = 0;
while (*mode) {
if (*mode >= '0' && *mode <= '9')
state->level = *mode - '0';
......@@ -135,6 +144,8 @@ local gzFile gz_open(path, fd, mode)
break;
case 'F':
state->strategy = Z_FIXED;
case 'T':
state->direct = 1;
default: /* could consider as an error, but just ignore */
;
}
......@@ -147,6 +158,15 @@ local gzFile gz_open(path, fd, mode)
return NULL;
}
/* can't force transparent read */
if (state->mode == GZ_READ) {
if (state->direct) {
free(state);
return NULL;
}
state->direct = 1; /* for empty file */
}
/* save the path name for error messages */
state->path = malloc(strlen(path) + 1);
if (state->path == NULL) {
......@@ -243,8 +263,8 @@ int ZEXPORT gzbuffer(file, size)
return -1;
/* check and set requested size */
if (size == 0)
return -1;
if (size < 2)
size = 2; /* need two bytes to check magic header */
state->want = size;
return 0;
}
......@@ -261,7 +281,8 @@ int ZEXPORT gzrewind(file)
state = (gz_statep)file;
/* check that we're reading and that there's no error */
if (state->mode != GZ_READ || state->err != Z_OK)
if (state->mode != GZ_READ ||
(state->err != Z_OK && state->err != Z_BUF_ERROR))
return -1;
/* back up and start over */
......@@ -289,7 +310,7 @@ z_off64_t ZEXPORT gzseek64(file, offset, whence)
return -1;
/* check that there's no error */
if (state->err != Z_OK)
if (state->err != Z_OK && state->err != Z_BUF_ERROR)
return -1;
/* can only seek from start or relative to current position */
......@@ -298,31 +319,32 @@ z_off64_t ZEXPORT gzseek64(file, offset, whence)
/* normalize offset to a SEEK_CUR specification */
if (whence == SEEK_SET)
offset -= state->pos;
offset -= state->x.pos;
else if (state->seek)
offset += state->skip;
state->seek = 0;
/* if within raw area while reading, just go there */
if (state->mode == GZ_READ && state->how == COPY &&
state->pos + offset >= state->raw) {
ret = LSEEK(state->fd, offset - state->have, SEEK_CUR);
state->x.pos + offset >= 0) {
ret = LSEEK(state->fd, offset - state->x.have, SEEK_CUR);
if (ret == -1)
return -1;
state->have = 0;
state->x.have = 0;
state->eof = 0;
state->past = 0;
state->seek = 0;
gz_error(state, Z_OK, NULL);
state->strm.avail_in = 0;
state->pos += offset;
return state->pos;
state->x.pos += offset;
return state->x.pos;
}
/* calculate skip amount, rewinding if needed for back seek when reading */
if (offset < 0) {
if (state->mode != GZ_READ) /* writing -- can't go backwards */
return -1;
offset += state->pos;
offset += state->x.pos;
if (offset < 0) /* before start of file! */
return -1;
if (gzrewind(file) == -1) /* rewind, then skip to offset */
......@@ -331,11 +353,11 @@ z_off64_t ZEXPORT gzseek64(file, offset, whence)
/* if reading, skip what's in output buffer (one less gzgetc() check) */
if (state->mode == GZ_READ) {
n = GT_OFF(state->have) || (z_off64_t)state->have > offset ?
(unsigned)offset : state->have;
state->have -= n;
state->next += n;
state->pos += n;
n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > offset ?
(unsigned)offset : state->x.have;
state->x.have -= n;
state->x.next += n;
state->x.pos += n;
offset -= n;
}
......@@ -344,7 +366,7 @@ z_off64_t ZEXPORT gzseek64(file, offset, whence)
state->seek = 1;
state->skip = offset;
}
return state->pos + offset;
return state->x.pos + offset;
}
/* -- see zlib.h -- */
......@@ -373,7 +395,7 @@ z_off64_t ZEXPORT gztell64(file)
return -1;
/* return position */
return state->pos + (state->seek ? state->skip : 0);
return state->x.pos + (state->seek ? state->skip : 0);
}
/* -- see zlib.h -- */
......@@ -433,8 +455,7 @@ int ZEXPORT gzeof(file)
return 0;
/* return end-of-file state */
return state->mode == GZ_READ ?
(state->eof && state->strm.avail_in == 0 && state->have == 0) : 0;
return state->mode == GZ_READ ? state->past : 0;
}
/* -- see zlib.h -- */
......@@ -471,8 +492,10 @@ void ZEXPORT gzclearerr(file)
return;
/* clear error and end-of-file */
if (state->mode == GZ_READ)
if (state->mode == GZ_READ) {
state->eof = 0;
state->past = 0;
}
gz_error(state, Z_OK, NULL);
}
......@@ -494,6 +517,10 @@ void ZLIB_INTERNAL gz_error(state, err, msg)
state->msg = NULL;
}
/* if fatal, set state->x.have to 0 so that the gzgetc() macro fails */
if (err != Z_OK && err != Z_BUF_ERROR)
state->x.have = 0;
/* set error code, and if no message, then done */
state->err = err;
if (msg == NULL)
......
3rdparty/zlib/gzread.c
View file @ 19ce8c7f
/* gzread.c -- zlib functions for reading gzip files
* Copyright (C) 2004, 2005, 2010 Mark Adler
* Copyright (C) 2004, 2005, 2010, 2011 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
......@@ -8,10 +8,9 @@
/* Local functions */
local int gz_load OF((gz_statep, unsigned char *, unsigned, unsigned *));
local int gz_avail OF((gz_statep));
local int gz_next4 OF((gz_statep, unsigned long *));
local int gz_head OF((gz_statep));
local int gz_look OF((gz_statep));
local int gz_decomp OF((gz_statep));
local int gz_make OF((gz_statep));
local int gz_fetch OF((gz_statep));
local int gz_skip OF((gz_statep, z_off64_t));
/* Use read() to load a buffer -- return -1 on error, otherwise 0. Read from
......@@ -46,67 +45,42 @@ local int gz_load(state, buf, len, have)
error, 0 otherwise. Note that the eof flag is set when the end of the input
file is reached, even though there may be unused data in the buffer. Once
that data has been used, no more attempts will be made to read the file.
gz_avail() assumes that strm->avail_in == 0. */
If strm->avail_in != 0, then the current data is moved to the beginning of
the input buffer, and then the remainder of the buffer is loaded with the
available data from the input file. */
local int gz_avail(state)
gz_statep state;
{
unsigned got;
z_streamp strm = &(state->strm);
if (state->err != Z_OK)
if (state->err != Z_OK && state->err != Z_BUF_ERROR)
return -1;
if (state->eof == 0) {
if (gz_load(state, state->in, state->size,
(unsigned *)&(strm->avail_in)) == -1)
if (strm->avail_in)
memmove(state->in, strm->next_in, strm->avail_in);
if (gz_load(state, state->in + strm->avail_in,
state->size - strm->avail_in, &got) == -1)
return -1;
strm->avail_in += got;
strm->next_in = state->in;
}
return 0;
}
/* Get next byte from input, or -1 if end or error. */
#define NEXT() ((strm->avail_in == 0 && gz_avail(state) == -1) ? -1 : \
(strm->avail_in == 0 ? -1 : \
(strm->avail_in--, *(strm->next_in)++)))
/* Get a four-byte little-endian integer and return 0 on success and the value
in *ret. Otherwise -1 is returned and *ret is not modified. */
local int gz_next4(state, ret)
gz_statep state;
unsigned long *ret;
{
int ch;
unsigned long val;
z_streamp strm = &(state->strm);
val = NEXT();
val += (unsigned)NEXT() << 8;
val += (unsigned long)NEXT() << 16;
ch = NEXT();
if (ch == -1)
return -1;
val += (unsigned long)ch << 24;
*ret = val;
return 0;
}
/* Look for gzip header, set up for inflate or copy. state->have must be zero.
/* Look for gzip header, set up for inflate or copy. state->x.have must be 0.
If this is the first time in, allocate required memory. state->how will be
left unchanged if there is no more input data available, will be set to COPY
if there is no gzip header and direct copying will be performed, or it will
be set to GZIP for decompression, and the gzip header will be skipped so
that the next available input data is the raw deflate stream. If direct
copying, then leftover input data from the input buffer will be copied to
the output buffer. In that case, all further file reads will be directly to
either the output buffer or a user buffer. If decompressing, the inflate
state and the check value will be initialized. gz_head() will return 0 on
success or -1 on failure. Failures may include read errors or gzip header
errors. */
local int gz_head(state)
be set to GZIP for decompression. If direct copying, then leftover input
data from the input buffer will be copied to the output buffer. In that
case, all further file reads will be directly to either the output buffer or
a user buffer. If decompressing, the inflate state will be initialized.
gz_look() will return 0 on success or -1 on failure. */
local int gz_look(state)
gz_statep state;
{
z_streamp strm = &(state->strm);
int flags;
unsigned len;
/* allocate read buffers and inflate memory */
if (state->size == 0) {
......@@ -129,7 +103,7 @@ local int gz_head(state)
state->strm.opaque = Z_NULL;
state->strm.avail_in = 0;
state->strm.next_in = Z_NULL;
if (inflateInit2(&(state->strm), -15) != Z_OK) { /* raw inflate */
if (inflateInit2(&(state->strm), 15 + 16) != Z_OK) { /* gunzip */
free(state->out);
free(state->in);
state->size = 0;
......@@ -138,83 +112,45 @@ local int gz_head(state)
}
}
/* get some data in the input buffer */
if (strm->avail_in == 0) {
/* get at least the magic bytes in the input buffer */
if (strm->avail_in < 2) {
if (gz_avail(state) == -1)
return -1;
if (strm->avail_in == 0)
return 0;
}
/* look for the gzip magic header bytes 31 and 139 */
if (strm->next_in[0] == 31) {
strm->avail_in--;
strm->next_in++;
if (strm->avail_in == 0 && gz_avail(state) == -1)
return -1;
if (strm->avail_in && strm->next_in[0] == 139) {
/* we have a gzip header, woo hoo! */
strm->avail_in--;
strm->next_in++;
/* skip rest of header */
if (NEXT() != 8) { /* compression method */
gz_error(state, Z_DATA_ERROR, "unknown compression method");
return -1;
}
flags = NEXT();
if (flags & 0xe0) { /* reserved flag bits */
gz_error(state, Z_DATA_ERROR, "unknown header flags set");
return -1;
}
NEXT(); /* modification time */
NEXT();
NEXT();
NEXT();
NEXT(); /* extra flags */
NEXT(); /* operating system */
if (flags & 4) { /* extra field */
len = (unsigned)NEXT();
len += (unsigned)NEXT() << 8;
while (len--)
if (NEXT() < 0)
break;
}
if (flags & 8) /* file name */
while (NEXT() > 0)
;
if (flags & 16) /* comment */
while (NEXT() > 0)
;
if (flags & 2) { /* header crc */
NEXT();
NEXT();
}
/* an unexpected end of file is not checked for here -- it will be
noticed on the first request for uncompressed data */
/* set up for decompression */
/* look for gzip magic bytes -- if there, do gzip decoding (note: there is
a logical dilemma here when considering the case of a partially written
gzip file, to wit, if a single 31 byte is written, then we cannot tell
whether this is a single-byte file, or just a partially written gzip
file -- for here we assume that if a gzip file is being written, then
the header will be written in a single operation, so that reading a
single byte is sufficient indication that it is not a gzip file) */
if (strm->avail_in > 1 &&
strm->next_in[0] == 31 && strm->next_in[1] == 139) {
inflateReset(strm);
strm->adler = crc32(0L, Z_NULL, 0);
state->how = GZIP;
state->direct = 0;
return 0;
}
else {
/* not a gzip file -- save first byte (31) and fall to raw i/o */
state->out[0] = 31;
state->have = 1;
}
/* no gzip header -- if we were decoding gzip before, then this is trailing
garbage. Ignore the trailing garbage and finish. */
if (state->direct == 0) {
strm->avail_in = 0;
state->eof = 1;
state->x.have = 0;
return 0;
}
/* doing raw i/o, save start of raw data for seeking, copy any leftover
input to output -- this assumes that the output buffer is larger than
the input buffer, which also assures space for gzungetc() */
state->raw = state->pos;
state->next = state->out;
/* doing raw i/o, copy any leftover input to output -- this assumes that
the output buffer is larger than the input buffer, which also assures
space for gzungetc() */
state->x.next = state->out;
if (strm->avail_in) {
memcpy(state->next + state->have, strm->next_in, strm->avail_in);
state->have += strm->avail_in;
memcpy(state->x.next, strm->next_in, strm->avail_in);
state->x.have = strm->avail_in;
strm->avail_in = 0;
}
state->how = COPY;
......@@ -223,19 +159,15 @@ local int gz_head(state)
}
/* Decompress from input to the provided next_out and avail_out in the state.
If the end of the compressed data is reached, then verify the gzip trailer
check value and length (modulo 2^32). state->have and state->next are set
to point to the just decompressed data, and the crc is updated. If the
trailer is verified, state->how is reset to LOOK to look for the next gzip
stream or raw data, once state->have is depleted. Returns 0 on success, -1
on failure. Failures may include invalid compressed data or a failed gzip
trailer verification. */
On return, state->x.have and state->x.next point to the just decompressed
data. If the gzip stream completes, state->how is reset to LOOK to look for
the next gzip stream or raw data, once state->x.have is depleted. Returns 0
on success, -1 on failure. */
local int gz_decomp(state)
gz_statep state;
{
int ret;
int ret = Z_OK;
unsigned had;
unsigned long crc, len;
z_streamp strm = &(state->strm);
/* fill output buffer up to end of deflate stream */
......@@ -245,8 +177,8 @@ local int gz_decomp(state)
if (strm->avail_in == 0 && gz_avail(state) == -1)
return -1;
if (strm->avail_in == 0) {
gz_error(state, Z_DATA_ERROR, "unexpected end of file");
return -1;
gz_error(state, Z_BUF_ERROR, "unexpected end of file");
break;
}
/* decompress and handle errors */
......@@ -267,62 +199,50 @@ local int gz_decomp(state)
}
} while (strm->avail_out && ret != Z_STREAM_END);
/* update available output and crc check value */
state->have = had - strm->avail_out;
state->next = strm->next_out - state->have;
strm->adler = crc32(strm->adler, state->next, state->have);
/* update available output */
state->x.have = had - strm->avail_out;
state->x.next = strm->next_out - state->x.have;
/* check gzip trailer if at end of deflate stream */
if (ret == Z_STREAM_END) {
if (gz_next4(state, &crc) == -1 || gz_next4(state, &len) == -1) {
gz_error(state, Z_DATA_ERROR, "unexpected end of file");
return -1;
}
if (crc != strm->adler) {
gz_error(state, Z_DATA_ERROR, "incorrect data check");
return -1;
}
if (len != (strm->total_out & 0xffffffffL)) {
gz_error(state, Z_DATA_ERROR, "incorrect length check");
return -1;
}
state->how = LOOK; /* ready for next stream, once have is 0 (leave
state->direct unchanged to remember how) */
}
/* if the gzip stream completed successfully, look for another */
if (ret == Z_STREAM_END)
state->how = LOOK;
/* good decompression */
return 0;
}
/* Make data and put in the output buffer. Assumes that state->have == 0.
/* Fetch data and put it in the output buffer. Assumes state->x.have is 0.
Data is either copied from the input file or decompressed from the input
file depending on state->how. If state->how is LOOK, then a gzip header is
looked for (and skipped if found) to determine wither to copy or decompress.
Returns -1 on error, otherwise 0. gz_make() will leave state->have as COPY
or GZIP unless the end of the input file has been reached and all data has
been processed. */
local int gz_make(state)
looked for to determine whether to copy or decompress. Returns -1 on error,
otherwise 0. gz_fetch() will leave state->how as COPY or GZIP unless the
end of the input file has been reached and all data has been processed. */
local int gz_fetch(state)
gz_statep state;
{
z_streamp strm = &(state->strm);
if (state->how == LOOK) { /* look for gzip header */
if (gz_head(state) == -1)
do {
switch(state->how) {
case LOOK: /* -> LOOK, COPY (only if never GZIP), or GZIP */
if (gz_look(state) == -1)
return -1;
if (state->have) /* got some data from gz_head() */
if (state->how == LOOK)
return 0;
}
if (state->how == COPY) { /* straight copy */
if (gz_load(state, state->out, state->size << 1, &(state->have)) == -1)
break;
case COPY: /* -> COPY */
if (gz_load(state, state->out, state->size << 1, &(state->x.have))
== -1)
return -1;
state->next = state->out;
}
else if (state->how == GZIP) { /* decompress */
state->x.next = state->out;
return 0;
case GZIP: /* -> GZIP or LOOK (if end of gzip stream) */
strm->avail_out = state->size << 1;
strm->next_out = state->out;
if (gz_decomp(state) == -1)
return -1;
}
} while (state->x.have == 0 && (!state->eof || strm->avail_in));
return 0;
}
......@@ -336,12 +256,12 @@ local int gz_skip(state, len)
/* skip over len bytes or reach end-of-file, whichever comes first */
while (len)
/* skip over whatever is in output buffer */
if (state->have) {
n = GT_OFF(state->have) || (z_off64_t)state->have > len ?
(unsigned)len : state->have;
state->have -= n;
state->next += n;
state->pos += n;
if (state->x.have) {
n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > len ?
(unsigned)len : state->x.have;
state->x.have -= n;
state->x.next += n;
state->x.pos += n;
len -= n;
}
......@@ -352,7 +272,7 @@ local int gz_skip(state, len)
/* need more data to skip -- load up output buffer */
else {
/* get more output, looking for header if required */
if (gz_make(state) == -1)
if (gz_fetch(state) == -1)
return -1;
}
return 0;
......@@ -374,14 +294,15 @@ int ZEXPORT gzread(file, buf, len)
state = (gz_statep)file;
strm = &(state->strm);
/* check that we're reading and that there's no error */
if (state->mode != GZ_READ || state->err != Z_OK)
/* check that we're reading and that there's no (serious) error */
if (state->mode != GZ_READ ||
(state->err != Z_OK && state->err != Z_BUF_ERROR))
return -1;
/* since an int is returned, make sure len fits in one, otherwise return
with an error (this avoids the flaw in the interface) */
if ((int)len < 0) {
gz_error(state, Z_BUF_ERROR, "requested length does not fit in int");
gz_error(state, Z_DATA_ERROR, "requested length does not fit in int");
return -1;
}
......@@ -400,22 +321,24 @@ int ZEXPORT gzread(file, buf, len)
got = 0;
do {
/* first just try copying data from the output buffer */
if (state->have) {
n = state->have > len ? len : state->have;
memcpy(buf, state->next, n);
state->next += n;
state->have -= n;
if (state->x.have) {
n = state->x.have > len ? len : state->x.have;
memcpy(buf, state->x.next, n);
state->x.next += n;
state->x.have -= n;
}
/* output buffer empty -- return if we're at the end of the input */
else if (state->eof && strm->avail_in == 0)
else if (state->eof && strm->avail_in == 0) {
state->past = 1; /* tried to read past end */
break;
}
/* need output data -- for small len or new stream load up our output
buffer */
else if (state->how == LOOK || len < (state->size << 1)) {
/* get more output, looking for header if required */
if (gz_make(state) == -1)
if (gz_fetch(state) == -1)
return -1;
continue; /* no progress yet -- go back to memcpy() above */
/* the copy above assures that we will leave with space in the
......@@ -434,15 +357,15 @@ int ZEXPORT gzread(file, buf, len)
strm->next_out = buf;
if (gz_decomp(state) == -1)
return -1;
n = state->have;
state->have = 0;
n = state->x.have;
state->x.have = 0;
}
/* update progress */
len -= n;
buf = (char *)buf + n;
got += n;
state->pos += n;
state->x.pos += n;
} while (len);
/* return number of bytes read into user buffer (will fit in int) */
......@@ -450,7 +373,7 @@ int ZEXPORT gzread(file, buf, len)
}
/* -- see zlib.h -- */
int ZEXPORT gzgetc(file)
int ZEXPORT gzgetc_(file)
gzFile file;
{
int ret;
......@@ -462,15 +385,16 @@ int ZEXPORT gzgetc(file)
return -1;
state = (gz_statep)file;
/* check that we're reading and that there's no error */
if (state->mode != GZ_READ || state->err != Z_OK)
/* check that we're reading and that there's no (serious) error */
if (state->mode != GZ_READ ||
(state->err != Z_OK && state->err != Z_BUF_ERROR))
return -1;
/* try output buffer (no need to check for skip request) */
if (state->have) {
state->have--;
state->pos++;
return *(state->next)++;
if (state->x.have) {
state->x.have--;
state->x.pos++;
return *(state->x.next)++;
}
/* nothing there -- try gzread() */
......@@ -478,6 +402,13 @@ int ZEXPORT gzgetc(file)
return ret < 1 ? -1 : buf[0];
}
#undef gzgetc
int ZEXPORT gzgetc(file)
gzFile file;
{
return gzgetc_(file);
}
/* -- see zlib.h -- */
int ZEXPORT gzungetc(c, file)
int c;
......@@ -490,8 +421,9 @@ int ZEXPORT gzungetc(c, file)
return -1;
state = (gz_statep)file;
/* check that we're reading and that there's no error */
if (state->mode != GZ_READ || state->err != Z_OK)
/* check that we're reading and that there's no (serious) error */
if (state->mode != GZ_READ ||
(state->err != Z_OK && state->err != Z_BUF_ERROR))
return -1;
/* process a skip request */
......@@ -506,32 +438,34 @@ int ZEXPORT gzungetc(c, file)
return -1;
/* if output buffer empty, put byte at end (allows more pushing) */
if (state->have == 0) {
state->have = 1;
state->next = state->out + (state->size << 1) - 1;
state->next[0] = c;
state->pos--;
if (state->x.have == 0) {
state->x.have = 1;
state->x.next = state->out + (state->size << 1) - 1;
state->x.next[0] = c;
state->x.pos--;
state->past = 0;
return c;
}
/* if no room, give up (must have already done a gzungetc()) */
if (state->have == (state->size << 1)) {
gz_error(state, Z_BUF_ERROR, "out of room to push characters");
if (state->x.have == (state->size << 1)) {
gz_error(state, Z_DATA_ERROR, "out of room to push characters");
return -1;
}
/* slide output data if needed and insert byte before existing data */
if (state->next == state->out) {
unsigned char *src = state->out + state->have;
if (state->x.next == state->out) {
unsigned char *src = state->out + state->x.have;
unsigned char *dest = state->out + (state->size << 1);
while (src > state->out)
*--dest = *--src;
state->next = dest;
state->x.next = dest;
}
state->have++;
state->next--;
state->next[0] = c;
state->pos--;
state->x.have++;
state->x.next--;
state->x.next[0] = c;
state->x.pos--;
state->past = 0;
return c;
}
......@@ -551,8 +485,9 @@ char * ZEXPORT gzgets(file, buf, len)
return NULL;
state = (gz_statep)file;
/* check that we're reading and that there's no error */
if (state->mode != GZ_READ || state->err != Z_OK)
/* check that we're reading and that there's no (serious) error */
if (state->mode != GZ_READ ||
(state->err != Z_OK && state->err != Z_BUF_ERROR))
return NULL;
/* process a skip request */
......@@ -569,32 +504,31 @@ char * ZEXPORT gzgets(file, buf, len)
left = (unsigned)len - 1;
if (left) do {
/* assure that something is in the output buffer */
if (state->have == 0) {
if (gz_make(state) == -1)
if (state->x.have == 0 && gz_fetch(state) == -1)
return NULL; /* error */
if (state->have == 0) { /* end of file */
if (buf == str) /* got bupkus */
return NULL;
break; /* got something -- return it */
}
if (state->x.have == 0) { /* end of file */
state->past = 1; /* read past end */
break; /* return what we have */
}
/* look for end-of-line in current output buffer */
n = state->have > left ? left : state->have;
eol = memchr(state->next, '\n', n);
n = state->x.have > left ? left : state->x.have;
eol = memchr(state->x.next, '\n', n);
if (eol != NULL)
n = (unsigned)(eol - state->next) + 1;
n = (unsigned)(eol - state->x.next) + 1;
/* copy through end-of-line, or remainder if not found */
memcpy(buf, state->next, n);
state->have -= n;
state->next += n;
state->pos += n;
memcpy(buf, state->x.next, n);
state->x.have -= n;
state->x.next += n;
state->x.pos += n;
left -= n;
buf += n;
} while (left && eol == NULL);
/* found end-of-line or out of space -- terminate string and return it */
/* return terminated string, or if nothing, end of file */
if (buf == str)
return NULL;
buf[0] = 0;
return str;
}
......@@ -610,16 +544,12 @@ int ZEXPORT gzdirect(file)
return 0;
state = (gz_statep)file;
/* check that we're reading */
if (state->mode != GZ_READ)
return 0;
/* if the state is not known, but we can find out, then do so (this is
mainly for right after a gzopen() or gzdopen()) */
if (state->how == LOOK && state->have == 0)
(void)gz_head(state);
if (state->mode == GZ_READ && state->how == LOOK && state->x.have == 0)
(void)gz_look(state);
/* return 1 if reading direct, 0 if decompressing a gzip stream */
/* return 1 if transparent, 0 if processing a gzip stream */
return state->direct;
}
......@@ -627,7 +557,7 @@ int ZEXPORT gzdirect(file)
int ZEXPORT gzclose_r(file)
gzFile file;
{
int ret;
int ret, err;
gz_statep state;
/* get internal structure */
......@@ -645,9 +575,10 @@ int ZEXPORT gzclose_r(file)
free(state->out);
free(state->in);
}
err = state->err == Z_BUF_ERROR ? Z_BUF_ERROR : Z_OK;
gz_error(state, Z_OK, NULL);
free(state->path);
ret = close(state->fd);
free(state);
return ret ? Z_ERRNO : Z_OK;
return ret ? Z_ERRNO : err;
}
3rdparty/zlib/gzwrite.c
View file @ 19ce8c7f
/* gzwrite.c -- zlib functions for writing gzip files
* Copyright (C) 2004, 2005, 2010 Mark Adler
* Copyright (C) 2004, 2005, 2010, 2011, 2012 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
......@@ -18,13 +18,18 @@ local int gz_init(state)
int ret;
z_streamp strm = &(state->strm);
/* allocate input and output buffers */
/* allocate input buffer */
state->in = malloc(state->want);
if (state->in == NULL) {
gz_error(state, Z_MEM_ERROR, "out of memory");
return -1;
}
/* only need output buffer and deflate state if compressing */
if (!state->direct) {
/* allocate output buffer */
state->out = malloc(state->want);
if (state->in == NULL || state->out == NULL) {
if (state->out != NULL)
free(state->out);
if (state->in != NULL)
if (state->out == NULL) {
free(state->in);
gz_error(state, Z_MEM_ERROR, "out of memory");
return -1;
......@@ -35,27 +40,33 @@ local int gz_init(state)
strm->zfree = Z_NULL;
strm->opaque = Z_NULL;
ret = deflateInit2(strm, state->level, Z_DEFLATED,
15 + 16, 8, state->strategy);
MAX_WBITS + 16, DEF_MEM_LEVEL, state->strategy);
if (ret != Z_OK) {
free(state->out);
free(state->in);
gz_error(state, Z_MEM_ERROR, "out of memory");
return -1;
}
}
/* mark state as initialized */
state->size = state->want;
/* initialize write buffer */
/* initialize write buffer if compressing */
if (!state->direct) {
strm->avail_out = state->size;
strm->next_out = state->out;
state->next = strm->next_out;
state->x.next = strm->next_out;
}
return 0;
}
/* Compress whatever is at avail_in and next_in and write to the output file.
Return -1 if there is an error writing to the output file, otherwise 0.
flush is assumed to be a valid deflate() flush value. If flush is Z_FINISH,
then the deflate() state is reset to start a new gzip stream. */
then the deflate() state is reset to start a new gzip stream. If gz->direct
is true, then simply write to the output file without compressing, and
ignore flush. */
local int gz_comp(state, flush)
gz_statep state;
int flush;
......@@ -68,6 +79,17 @@ local int gz_comp(state, flush)
if (state->size == 0 && gz_init(state) == -1)
return -1;
/* write directly if requested */
if (state->direct) {
got = write(state->fd, strm->next_in, strm->avail_in);
if (got < 0 || (unsigned)got != strm->avail_in) {
gz_error(state, Z_ERRNO, zstrerror());
return -1;
}
strm->avail_in = 0;
return 0;
}
/* run deflate() on provided input until it produces no more output */
ret = Z_OK;
do {
......@@ -75,8 +97,8 @@ local int gz_comp(state, flush)
doing Z_FINISH then don't write until we get to Z_STREAM_END */
if (strm->avail_out == 0 || (flush != Z_NO_FLUSH &&
(flush != Z_FINISH || ret == Z_STREAM_END))) {
have = (unsigned)(strm->next_out - state->next);
if (have && ((got = write(state->fd, state->next, have)) < 0 ||
have = (unsigned)(strm->next_out - state->x.next);
if (have && ((got = write(state->fd, state->x.next, have)) < 0 ||
(unsigned)got != have)) {
gz_error(state, Z_ERRNO, zstrerror());
return -1;
......@@ -85,7 +107,7 @@ local int gz_comp(state, flush)
strm->avail_out = state->size;
strm->next_out = state->out;
}
state->next = strm->next_out;
state->x.next = strm->next_out;
}
/* compress */
......@@ -131,7 +153,7 @@ local int gz_zero(state, len)
}
strm->avail_in = n;
strm->next_in = state->in;
state->pos += n;
state->x.pos += n;
if (gz_comp(state, Z_NO_FLUSH) == -1)
return -1;
len -= n;
......@@ -163,7 +185,7 @@ int ZEXPORT gzwrite(file, buf, len)
/* since an int is returned, make sure len fits in one, otherwise return
with an error (this avoids the flaw in the interface) */
if ((int)len < 0) {
gz_error(state, Z_BUF_ERROR, "requested length does not fit in int");
gz_error(state, Z_DATA_ERROR, "requested length does not fit in int");
return 0;
}
......@@ -193,7 +215,7 @@ int ZEXPORT gzwrite(file, buf, len)
n = len;
memcpy(strm->next_in + strm->avail_in, buf, n);
strm->avail_in += n;
state->pos += n;
state->x.pos += n;
buf = (char *)buf + n;
len -= n;
if (len && gz_comp(state, Z_NO_FLUSH) == -1)
......@@ -208,7 +230,7 @@ int ZEXPORT gzwrite(file, buf, len)
/* directly compress user buffer to file */
strm->avail_in = len;
strm->next_in = (voidp)buf;
state->pos += len;
state->x.pos += len;
if (gz_comp(state, Z_NO_FLUSH) == -1)
return 0;
}
......@@ -249,15 +271,15 @@ int ZEXPORT gzputc(file, c)
if (strm->avail_in == 0)
strm->next_in = state->in;
strm->next_in[strm->avail_in++] = c;
state->pos++;
return c;
state->x.pos++;
return c & 0xff;
}
/* no room in buffer or not initialized, use gz_write() */
buf[0] = c;
if (gzwrite(file, buf, 1) != 1)
return -1;
return c;
return c & 0xff;
}
/* -- see zlib.h -- */
......@@ -274,7 +296,7 @@ int ZEXPORT gzputs(file, str)
return ret == 0 && len != 0 ? -1 : ret;
}
#ifdef STDC
#if defined(STDC) || defined(Z_HAVE_STDARG_H)
#include <stdarg.h>
/* -- see zlib.h -- */
......@@ -342,11 +364,11 @@ int ZEXPORTVA gzprintf (gzFile file, const char *format, ...)
/* update buffer and position, defer compression until needed */
strm->avail_in = (unsigned)len;
strm->next_in = state->in;
state->pos += len;
state->x.pos += len;
return len;
}
#else /* !STDC */
#else /* !STDC && !Z_HAVE_STDARG_H */
/* -- see zlib.h -- */
int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
......@@ -366,6 +388,10 @@ int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
state = (gz_statep)file;
strm = &(state->strm);
/* check that can really pass pointer in ints */
if (sizeof(int) != sizeof(void *))
return 0;
/* check that we're writing and that there's no error */
if (state->mode != GZ_WRITE || state->err != Z_OK)
return 0;
......@@ -416,7 +442,7 @@ int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
/* update buffer and position, defer compression until needed */
strm->avail_in = (unsigned)len;
strm->next_in = state->in;
state->pos += len;
state->x.pos += len;
return len;
}
......@@ -500,7 +526,7 @@ int ZEXPORT gzsetparams(file, level, strategy)
int ZEXPORT gzclose_w(file)
gzFile file;
{
int ret = 0;
int ret = Z_OK;
gz_statep state;
/* get internal structure */
......@@ -515,17 +541,53 @@ int ZEXPORT gzclose_w(file)
/* check for seek request */
if (state->seek) {
state->seek = 0;
ret += gz_zero(state, state->skip);
if (gz_zero(state, state->skip) == -1)
ret = state->err;
}
/* flush, free memory, and close file */
ret += gz_comp(state, Z_FINISH);
if (gz_comp(state, Z_FINISH) == -1)
ret = state->err;
if (!state->direct) {
(void)deflateEnd(&(state->strm));
free(state->out);
}
free(state->in);
gz_error(state, Z_OK, NULL);
free(state->path);
ret += close(state->fd);
if (close(state->fd) == -1)
ret = Z_ERRNO;
free(state);
return ret ? Z_ERRNO : Z_OK;
return ret;
}
/* used by zlibVersion() to get the vsnprintf story from the horse's mouth */
unsigned long ZEXPORT gzflags()
{
unsigned long flags = 0;
#if defined(STDC) || defined(Z_HAVE_STDARG_H)
# ifdef NO_vsnprintf
flags += 1L << 25;
# ifdef HAS_vsprintf_void
flags += 1L << 26;
# endif
# else
# ifdef HAS_vsnprintf_void
flags += 1L << 26;
# endif
# endif
#else
flags += 1L << 24;
# ifdef NO_snprintf
flags += 1L << 25;
# ifdef HAS_sprintf_void
flags += 1L << 26;
# endif
# else
# ifdef HAS_snprintf_void
flags += 1L << 26;
# endif
# endif
#endif
return flags;
}
3rdparty/zlib/infback.c
View file @ 19ce8c7f
/* 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
*/
......@@ -42,10 +42,19 @@ int stream_size;
return Z_STREAM_ERROR;
strm->msg = Z_NULL; /* in case we return an error */
if (strm->zalloc == (alloc_func)0) {
#ifdef Z_SOLO
return Z_STREAM_ERROR;
#else
strm->zalloc = zcalloc;
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,
sizeof(struct inflate_state));
if (state == Z_NULL) return Z_MEM_ERROR;
......@@ -394,7 +403,6 @@ void FAR *out_desc;
PULLBYTE();
}
if (here.val < 16) {
NEEDBITS(here.bits);
DROPBITS(here.bits);
state->lens[state->have++] = here.val;
}
......
3rdparty/zlib/inffixed.h
View file @ 19ce8c7f
......@@ -2,9 +2,9 @@
* Generated automatically by makefixed().
*/
/* WARNING: this file should *not* be used by applications. It
is part of the implementation of the compression library and
is subject to change. Applications should only use zlib.h.
/* WARNING: this file should *not* be used by applications.
It is part of the implementation of this library and is
subject to change. Applications should only use zlib.h.
*/
static const code lenfix[512] = {
......
3rdparty/zlib/inflate.c
View file @ 19ce8c7f
/* inflate.c -- zlib decompression
* Copyright (C) 1995-2010 Mark Adler
* Copyright (C) 1995-2011 Mark Adler
* 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,
unsigned len));
int ZEXPORT inflateReset(strm)
int ZEXPORT inflateResetKeep(strm)
z_streamp strm;
{
struct inflate_state FAR *state;
......@@ -109,15 +109,13 @@ z_streamp strm;
state = (struct inflate_state FAR *)strm->state;
strm->total_in = strm->total_out = state->total = 0;
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->last = 0;
state->havedict = 0;
state->dmax = 32768U;
state->head = Z_NULL;
state->wsize = 0;
state->whave = 0;
state->wnext = 0;
state->hold = 0;
state->bits = 0;
state->lencode = state->distcode = state->next = state->codes;
......@@ -127,6 +125,19 @@ z_streamp strm;
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)
z_streamp strm;
int windowBits;
......@@ -180,10 +191,19 @@ int stream_size;
if (strm == Z_NULL) return Z_STREAM_ERROR;
strm->msg = Z_NULL; /* in case we return an error */
if (strm->zalloc == (alloc_func)0) {
#ifdef Z_SOLO
return Z_STREAM_ERROR;
#else
strm->zalloc = zcalloc;
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, sizeof(struct inflate_state));
if (state == Z_NULL) return Z_MEM_ERROR;
......@@ -321,8 +341,8 @@ void makefixed()
low = 0;
for (;;) {
if ((low % 7) == 0) printf("\n ");
printf("{%u,%u,%d}", state.lencode[low].op, state.lencode[low].bits,
state.lencode[low].val);
printf("{%u,%u,%d}", (low & 127) == 99 ? 64 : state.lencode[low].op,
state.lencode[low].bits, state.lencode[low].val);
if (++low == size) break;
putchar(',');
}
......@@ -925,7 +945,6 @@ int flush;
PULLBYTE();
}
if (here.val < 16) {
NEEDBITS(here.bits);
DROPBITS(here.bits);
state->lens[state->have++] = here.val;
}
......@@ -1214,7 +1233,8 @@ int flush;
*/
inf_leave:
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)) {
state->mode = MEM;
return Z_MEM_ERROR;
......@@ -1256,6 +1276,9 @@ uInt dictLength;
{
struct inflate_state FAR *state;
unsigned long id;
unsigned char *next;
unsigned avail;
int ret;
/* check state */
if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
......@@ -1271,21 +1294,19 @@ uInt dictLength;
return Z_DATA_ERROR;
}
/* copy dictionary to window */
if (updatewindow(strm, strm->avail_out)) {
/* copy dictionary to window using updatewindow(), which will amend the
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;
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;
Tracev((stderr, "inflate: dictionary set\n"));
return Z_OK;
......@@ -1433,8 +1454,8 @@ z_streamp source;
}
/* copy state */
zmemcpy(dest, source, sizeof(z_stream));
zmemcpy(copy, state, sizeof(struct inflate_state));
zmemcpy((voidpf)dest, (voidpf)source, sizeof(z_stream));
zmemcpy((voidpf)copy, (voidpf)state, sizeof(struct inflate_state));
if (state->lencode >= state->codes &&
state->lencode <= state->codes + ENOUGH - 1) {
copy->lencode = copy->codes + (state->lencode - state->codes);
......
3rdparty/zlib/inftrees.c
View file @ 19ce8c7f
/* 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
*/
......@@ -9,7 +9,7 @@
#define MAXBITS 15
const char inflate_copyright[] =
" inflate 1.2.5 Copyright 1995-2010 Mark Adler ";
" inflate 1.2.6 Copyright 1995-2012 Mark Adler ";
/*
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
......@@ -62,7 +62,7 @@ unsigned short FAR *work;
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 */
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, 203, 69};
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,
257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
......@@ -289,38 +289,14 @@ unsigned short FAR *work;
}
}
/*
Fill in rest of table for incomplete codes. This loop is similar to the
loop above in incrementing huff for table indices. It is assumed that
len is equal to curr + drop, so there is no loop needed to increment
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.
*/
/* fill in remaining table entry if code is incomplete (guaranteed to have
at most one remaining entry, since if the code is incomplete, the
maximum code length that was allowed to get this far is one bit) */
if (huff != 0) {
here.op = (unsigned char)64; /* invalid code marker */
here.bits = (unsigned char)(len - drop);
here.val = (unsigned short)0;
while (huff != 0) {
/* 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;
next[huff] = here;
}
/* set return parameters */
......
3rdparty/zlib/trees.c
View file @ 19ce8c7f
/* 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
* For conditions of distribution and use, see copyright notice in zlib.h
*/
......@@ -74,11 +74,6 @@ local const uch bl_order[BL_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.
*/
......@@ -399,7 +394,6 @@ void ZLIB_INTERNAL _tr_init(s)
s->bi_buf = 0;
s->bi_valid = 0;
s->last_eob_len = 8; /* enough lookahead for inflate */
#ifdef DEBUG
s->compressed_len = 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 */
}
/* ===========================================================================
* 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.
* 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)
deflate_state *s;
......@@ -902,20 +898,6 @@ void ZLIB_INTERNAL _tr_align(s)
s->compressed_len += 10L; /* 3 for block type, 7 for EOB */
#endif
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);
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 */
{
bi_windup(s); /* align on byte boundary */
s->last_eob_len = 8; /* enough lookahead for inflate */
if (header) {
put_short(s, (ush)len);
......
3rdparty/zlib/zconf.h → 3rdparty/zlib/zconf.h.cmakein
View file @ 19ce8c7f
/* zconf.h -- configuration of the zlib compression library
* Copyright (C) 1995-2010 Jean-loup Gailly.
* Copyright (C) 1995-2011 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
......@@ -7,6 +7,8 @@
#ifndef ZCONF_H
#define ZCONF_H
#cmakedefine Z_PREFIX
#cmakedefine Z_HAVE_UNISTD_H
/*
* If you *really* need a unique prefix for all types and library functions,
......@@ -15,6 +17,7 @@
* this permanently in zconf.h using "./configure --zprefix".
*/
#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */
# define Z_PREFIX_SET
/* all linked symbols */
# define _dist_code z__dist_code
......@@ -27,9 +30,11 @@
# define adler32 z_adler32
# define adler32_combine z_adler32_combine
# define adler32_combine64 z_adler32_combine64
# ifndef Z_SOLO
# define compress z_compress
# define compress2 z_compress2
# define compressBound z_compressBound
# endif
# define crc32 z_crc32
# define crc32_combine z_crc32_combine
# define crc32_combine64 z_crc32_combine64
......@@ -40,13 +45,16 @@
# define deflateInit2_ z_deflateInit2_
# define deflateInit_ z_deflateInit_
# define deflateParams z_deflateParams
# define deflatePending z_deflatePending
# define deflatePrime z_deflatePrime
# define deflateReset z_deflateReset
# define deflateResetKeep z_deflateResetKeep
# define deflateSetDictionary z_deflateSetDictionary
# define deflateSetHeader z_deflateSetHeader
# define deflateTune z_deflateTune
# define deflate_copyright z_deflate_copyright
# define get_crc_table z_get_crc_table
# ifndef Z_SOLO
# define gz_error z_gz_error
# define gz_intmax z_gz_intmax
# define gz_strwinerror z_gz_strwinerror
......@@ -59,8 +67,10 @@
# define gzdopen z_gzdopen
# define gzeof z_gzeof
# define gzerror z_gzerror
# define gzflags z_gzflags
# define gzflush z_gzflush
# define gzgetc z_gzgetc
# define gzgetc_ z_gzgetc_
# define gzgets z_gzgets
# define gzoffset z_gzoffset
# define gzoffset64 z_gzoffset64
......@@ -78,6 +88,7 @@
# define gztell64 z_gztell64
# define gzungetc z_gzungetc
# define gzwrite z_gzwrite
# endif
# define inflate z_inflate
# define inflateBack z_inflateBack
# define inflateBackEnd z_inflateBackEnd
......@@ -95,13 +106,18 @@
# define inflateSync z_inflateSync
# define inflateSyncPoint z_inflateSyncPoint
# define inflateUndermine z_inflateUndermine
# define inflateResetKeep z_inflateResetKeep
# define inflate_copyright z_inflate_copyright
# define inflate_fast z_inflate_fast
# define inflate_table z_inflate_table
# ifndef Z_SOLO
# define uncompress z_uncompress
# endif
# define zError z_zError
# ifndef Z_SOLO
# define zcalloc z_zcalloc
# define zcfree z_zcfree
# endif
# define zlibCompileFlags z_zlibCompileFlags
# define zlibVersion z_zlibVersion
......@@ -111,9 +127,11 @@
# define alloc_func z_alloc_func
# define charf z_charf
# define free_func z_free_func
# ifndef Z_SOLO
# define gzFile z_gzFile
# define gz_header z_gz_header
# define gz_headerp z_gz_headerp
# endif
# define in_func z_in_func
# define intf z_intf
# define out_func z_out_func
......@@ -126,7 +144,9 @@
# define voidpf z_voidpf
/* all zlib structs in zlib.h and zconf.h */
# ifndef Z_SOLO
# define gz_header_s z_gz_header_s
# endif
# define internal_state z_internal_state
#endif
......@@ -197,6 +217,12 @@
# 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: */
#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__)
# define NO_DUMMY_DECL
......@@ -243,6 +269,14 @@
# 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
* model programming (small or medium model with some far allocations).
* This was tested only with MSC; for other MSDOS compilers you may have
......@@ -360,8 +394,14 @@ typedef uLong FAR uLongf;
# define Z_HAVE_UNISTD_H
#endif
#ifdef HAVE_STDARG_H /* may be set to #if 1 by ./configure */
# define Z_HAVE_STDARG_H
#endif
#ifdef STDC
# ifndef Z_SOLO
# include <sys/types.h> /* for off_t */
# endif
#endif
/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
......@@ -374,7 +414,11 @@ typedef uLong FAR uLongf;
# undef _LARGEFILE64_SOURCE
#endif
#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
# define Z_LARGE
#endif
#if (defined(Z_HAVE_UNISTD_H) || defined(Z_LARGE)) && !defined(Z_SOLO)
# include <unistd.h> /* for SEEK_* and off_t */
# ifdef VMS
# include <unixio.h> /* for off_t */
......@@ -384,7 +428,7 @@ typedef uLong FAR uLongf;
# endif
#endif
#ifndef SEEK_SET
#if !defined(SEEK_SET) && !defined(Z_SOLO)
# define SEEK_SET 0 /* Seek from beginning of file. */
# define SEEK_CUR 1 /* Seek from current position. */
# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
......@@ -394,18 +438,14 @@ typedef uLong FAR uLongf;
# define z_off_t long
#endif
#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
#if !defined(_WIN32) && (defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0)
# define z_off64_t off64_t
#else
# if defined(_WIN32)
# define z_off64_t __int64
# else
# define z_off64_t z_off_t
#endif
#if defined(__OS400__)
# define NO_vsnprintf
#endif
#if defined(__MVS__)
# define NO_vsnprintf
#endif
/* MVS linker does not support external names larger than 8 bytes */
......
3rdparty/zlib/zlib.h
View file @ 19ce8c7f
/* zlib.h -- interface of the 'zlib' general purpose compression library
version 1.2.5, April 19th, 2010
version 1.2.6, January 29th, 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
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
Comments) 1950 to 1952 in the files http://www.ietf.org/rfc/rfc1950.txt
(zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format).
Comments) 1950 to 1952 in the files http://tools.ietf.org/html/rfc1950
(zlib format), rfc1951 (deflate format) and rfc1952 (gzip format).
*/
#ifndef ZLIB_H
......@@ -37,11 +37,11 @@
extern "C" {
#endif
#define ZLIB_VERSION "1.2.5"
#define ZLIB_VERNUM 0x1250
#define ZLIB_VERSION "1.2.6"
#define ZLIB_VERNUM 0x1260
#define ZLIB_VER_MAJOR 1
#define ZLIB_VER_MINOR 2
#define ZLIB_VER_REVISION 5
#define ZLIB_VER_REVISION 6
#define ZLIB_VER_SUBREVISION 0
/*
......@@ -83,15 +83,15 @@ typedef void (*free_func) OF((voidpf opaque, voidpf address));
struct internal_state;
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 */
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 */
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 */
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
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
Z_STREAM_END, then it must be called again as described above.
value returned by deflateBound (see below). Then deflate is guaranteed to
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
so far (that is, total_in bytes).
......@@ -454,20 +455,23 @@ ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
avail_out must be large enough to hold all the uncompressed data. (The size
of the uncompressed data may have been saved by the compressor for this
purpose.) The next operation on this stream must be inflateEnd to deallocate
the decompression state. The use of Z_FINISH is never required, but can be
used to inform inflate that a faster approach may be used for the single
inflate() call.
the decompression state. The use of Z_FINISH is not required to perform an
inflation in one step. However it may be used to inform inflate that a
faster approach can be used for the single inflate() call. Z_FINISH also
informs inflate to not maintain a sliding window if the stream completes,
which reduces inflate's memory footprint.
In this implementation, inflate() always flushes as much output as
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
is on the return value of inflate(), as noted below, or when it returns early
because Z_BLOCK or Z_TREES is used.
first call. So the effects of the flush parameter in this implementation are
on the return value of inflate() as noted below, when inflate() returns early
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
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
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
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
......@@ -478,7 +482,9 @@ ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
initializing with inflateInit2(). Any information contained in the gzip
header is not retained, so applications that need that information should
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
or more output produced), Z_STREAM_END if the end of the compressed data has
......@@ -580,10 +586,15 @@ ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm,
uInt dictLength));
/*
Initializes the compression dictionary from the given byte sequence
without producing any compressed output. This function must be called
immediately after deflateInit, deflateInit2 or deflateReset, before any call
of deflate. The compressor and decompressor must use exactly the same
dictionary (see inflateSetDictionary).
without producing any compressed output. When using the zlib format, this
function must be called immediately after deflateInit, deflateInit2 or
deflateReset, and before any call of deflate. When doing raw deflate, this
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
to be encountered later in the data to be compressed, with the most commonly
......@@ -610,8 +621,8 @@ ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm,
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
inconsistent (for example if deflate has already been called for this stream
or if the compression method is bsort). deflateSetDictionary does not
perform any compression: this will be done by deflate().
or if not at a block boundary for raw deflate). deflateSetDictionary does
not perform any compression: this will be done by deflate().
*/
ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest,
......@@ -688,8 +699,28 @@ ZEXTERN uLong ZEXPORT deflateBound OF((z_streamp strm,
deflation of sourceLen bytes. It must be called after deflateInit() or
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
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,
int bits,
......@@ -703,8 +734,9 @@ ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm,
than or equal to 16, and that many of the least significant bits of value
will be inserted in the output.
deflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source
stream state was inconsistent.
deflatePrime returns Z_OK if success, Z_BUF_ERROR if there was not enough
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,
......@@ -790,10 +822,11 @@ ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm,
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.
The compressor and decompressor must use exactly the same dictionary (see
deflateSetDictionary). For raw inflate, this function can be called
immediately after inflateInit2() or inflateReset() and before any call of
inflate() to set the dictionary. The application must insure that the
dictionary that was used for compression is provided.
deflateSetDictionary). For raw inflate, this function can be called at any
time to set the dictionary. If the provided dictionary is smaller than the
window and there is already data in the window, then the provided dictionary
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
parameter is invalid (e.g. dictionary being Z_NULL) or the stream state is
......@@ -805,17 +838,21 @@ ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm,
ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm));
/*
Skips invalid compressed data until a full flush point (see above the
description of deflate with Z_FULL_FLUSH) can be found, or until all
Skips invalid compressed data until a possible full flush point (see above
for the description of deflate with Z_FULL_FLUSH) can be found, or until all
available input is skipped. No output is provided.
inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR
if no more input was provided, Z_DATA_ERROR if no flush point 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.
inflateSync searches for a 00 00 FF FF pattern in the compressed data.
All full flush points have this pattern, but not all occurences of this
pattern are full flush points.
inflateSync returns Z_OK if a possible full flush point has been found,
Z_BUF_ERROR if no more input was provided, Z_DATA_ERROR if no flush point
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,
......@@ -962,7 +999,7 @@ ZEXTERN int ZEXPORT inflateBackInit OF((z_streamp strm, int windowBits,
See inflateBack() for the usage of these routines.
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
the version of the header file.
*/
......@@ -1088,6 +1125,7 @@ ZEXTERN uLong ZEXPORT zlibCompileFlags OF((void));
27-31: 0 (reserved)
*/
#ifndef Z_SOLO
/* utility functions */
......@@ -1149,10 +1187,11 @@ ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen,
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
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 */
/*
......@@ -1162,7 +1201,7 @@ ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen,
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));
......@@ -1172,13 +1211,25 @@ ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode));
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'
for fixed code compression as in "wb9F". (See the description of
deflateInit2 for more information about the strategy parameter.) Also "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.
deflateInit2 for more information about the strategy parameter.) 'T' will
request transparent writing or appending with no compression and not using
the gzip format.
"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.
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
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
insufficient memory to allocate the gzFile state, or if an invalid mode was
......@@ -1197,7 +1248,11 @@ ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode));
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,
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
gzFile state, if an invalid mode was specified (an 'r', 'w', or 'a' was not
......@@ -1235,14 +1290,26 @@ ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy));
ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len));
/*
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
bytes into the buffer.
the input file is not in gzip format, gzread copies the given number of
bytes into the buffer directly from the file.
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
of the input file directly without decompression. The entire input file
will be read if gzread is called until it returns less than the requested
len.
to read, looking for another gzip stream. Any number of gzip streams may be
concatenated in the input file, and will all be decompressed by gzread().
If something other than a gzip stream is encountered after a gzip stream,
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
len for end of file, or -1 for error.
......@@ -1256,7 +1323,7 @@ ZEXTERN int ZEXPORT gzwrite OF((gzFile file,
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
control of the format string, as in fprintf. gzprintf returns the number of
......@@ -1301,7 +1368,10 @@ ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c));
ZEXTERN int ZEXPORT gzgetc OF((gzFile file));
/*
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));
......@@ -1397,9 +1467,7 @@ ZEXTERN int ZEXPORT gzeof OF((gzFile file));
ZEXTERN int ZEXPORT gzdirect OF((gzFile file));
/*
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
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.
(0) if file is a gzip stream being decompressed.
If the input file is empty, gzdirect() will return true, since the input
does not contain a gzip stream.
......@@ -1408,6 +1476,13 @@ ZEXTERN int ZEXPORT gzdirect OF((gzFile file));
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
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));
......@@ -1419,7 +1494,8 @@ ZEXTERN int ZEXPORT gzclose OF((gzFile file));
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
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));
......@@ -1457,6 +1533,7 @@ ZEXTERN void ZEXPORT gzclearerr OF((gzFile file));
file that is being written concurrently.
*/
#endif /* !Z_SOLO */
/* checksum functions */
......@@ -1492,7 +1569,9 @@ ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2,
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
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));
......@@ -1544,17 +1623,36 @@ ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits,
const char *version,
int stream_size));
#define deflateInit(strm, level) \
deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream))
deflateInit_((strm), (level), ZLIB_VERSION, (int)sizeof(z_stream))
#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) \
deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
(strategy), ZLIB_VERSION, sizeof(z_stream))
(strategy), ZLIB_VERSION, (int)sizeof(z_stream))
#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) \
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));
#define gzgetc(g) \
((g)->have ? ((g)->have--, (g)->pos++, *((g)->next)++) : gzgetc_(g))
/* 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
......@@ -1572,13 +1670,22 @@ ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits,
#endif
#if !defined(ZLIB_INTERNAL) && _FILE_OFFSET_BITS-0 == 64 && _LFS64_LARGEFILE-0
# 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 gzseek gzseek64
# define gztell gztell64
# define gzoffset gzoffset64
# define adler32_combine adler32_combine64
# define crc32_combine crc32_combine64
# ifdef _LARGEFILE64_SOURCE
# endif
# ifndef _LARGEFILE64_SOURCE
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 gztell64 OF((gzFile));
......@@ -1595,6 +1702,13 @@ ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits,
ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t));
#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 */
#if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL)
struct internal_state {int dummy;};
......@@ -1605,6 +1719,11 @@ ZEXTERN const char * ZEXPORT zError OF((int));
ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp));
ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void));
ZEXTERN int ZEXPORT inflateUndermine OF((z_streamp, int));
ZEXTERN int ZEXPORT inflateResetKeep OF((z_streamp));
ZEXTERN int ZEXPORT deflateResetKeep OF((z_streamp));
#ifndef Z_SOLO
ZEXTERN unsigned long ZEXPORT gzflags OF((void));
#endif
#ifdef __cplusplus
}
......
3rdparty/zlib/zutil.c
View file @ 19ce8c7f
/* zutil.c -- target dependent utility functions for the compression library
* Copyright (C) 1995-2005, 2010 Jean-loup Gailly.
* Copyright (C) 1995-2005, 2010, 2011 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
......@@ -85,37 +85,17 @@ uLong ZEXPORT zlibCompileFlags()
#ifdef FASTEST
flags += 1L << 21;
#endif
#ifdef STDC
# ifdef NO_vsnprintf
flags += 1L << 25;
# ifdef HAS_vsprintf_void
flags += 1L << 26;
# endif
# else
# ifdef HAS_vsnprintf_void
flags += 1L << 26;
# endif
# endif
#ifdef Z_SOLO
return flags;
#else
flags += 1L << 24;
# ifdef NO_snprintf
flags += 1L << 25;
# ifdef HAS_sprintf_void
flags += 1L << 26;
# endif
# else
# ifdef HAS_snprintf_void
flags += 1L << 26;
# endif
# endif
return flags + gzflags();
#endif
return flags;
}
#ifdef DEBUG
# ifndef verbose
# define verbose -1
# define verbose 0
# endif
int ZLIB_INTERNAL z_verbose = verbose;
......@@ -181,6 +161,7 @@ void ZLIB_INTERNAL zmemzero(dest, len)
}
#endif
#ifndef Z_SOLO
#ifdef SYS16BIT
......@@ -316,3 +297,5 @@ void ZLIB_INTERNAL zcfree (opaque, ptr)
}
#endif /* MY_ZCALLOC */
#endif /* !Z_SOLO */
3rdparty/zlib/zutil.h
View file @ 19ce8c7f
/* zutil.h -- internal interface and configuration of the compression library
* Copyright (C) 1995-2010 Jean-loup Gailly.
* Copyright (C) 1995-2011 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
......@@ -21,14 +21,7 @@
#include "zlib.h"
#ifdef __arm__
# define z_off64_t z_off_t
#endif
#ifndef Z_TREES
#define Z_TREES 6
#endif
#ifdef STDC
#if defined(STDC) && !defined(Z_SOLO)
# if !(defined(_WIN32_WCE) && defined(_MSC_VER))
# include <stddef.h>
# endif
......@@ -36,6 +29,10 @@
# include <stdlib.h>
#endif
#ifdef Z_SOLO
typedef long ptrdiff_t; /* guess -- will be caught if guess is wrong */
#endif
#ifndef local
# define local static
#endif
......@@ -85,6 +82,7 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
# define OS_CODE 0x00
# ifndef Z_SOLO
# if defined(__TURBOC__) || defined(__BORLANDC__)
# if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
/* Allow compilation with ANSI keywords only enabled */
......@@ -96,6 +94,7 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
# else /* MSC or DJGPP */
# include <malloc.h>
# endif
# endif
#endif
#ifdef AMIGA
......@@ -114,13 +113,14 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
#ifdef OS2
# define OS_CODE 0x06
# ifdef M_I86
# if defined(M_I86) && !defined(Z_SOLO)
# include <malloc.h>
# endif
#endif
#if defined(MACOS) || defined(TARGET_OS_MAC)
# define OS_CODE 0x07
# ifndef Z_SOLO
# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
# include <unix.h> /* for fdopen */
# else
......@@ -128,6 +128,7 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
# define fdopen(fd,mode) NULL /* No fdopen() */
# endif
# endif
# endif
#endif
#ifdef TOPS20
......@@ -160,14 +161,14 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
# endif
#endif
#if defined(__BORLANDC__)
#if defined(__BORLANDC__) && !defined(MSDOS)
#pragma warn -8004
#pragma warn -8008
#pragma warn -8066
#endif
/* 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 crc32_combine64 OF((uLong, uLong, z_off_t));
#endif
......@@ -184,42 +185,7 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
/* functions */
#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
# 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)
#if defined(pyr) || defined(Z_SOLO)
# define NO_MEMCPY
#endif
#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
......@@ -268,10 +234,11 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
# define Tracecv(c,x)
#endif
voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
#ifndef Z_SOLO
voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
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) \
(*((strm)->zalloc))((strm)->opaque, (items), (size))
......
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