From 873bd99008e5ee5d1e0f3d8a6aca10dad1be0f8b Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20St=C3=B6hr?= Date: Wed, 6 Dec 2017 02:45:49 +0100 Subject: [PATCH] zlib: update to zlib 1.2.11 This should also be done in LyX 2.3.x now or for LyX 2.3.1. --- 3rdparty/zlib/{1.2.8 => 1.2.11}/README | 6 +- 3rdparty/zlib/{1.2.8 => 1.2.11}/adler32.c | 21 +- 3rdparty/zlib/{1.2.8 => 1.2.11}/compress.c | 42 +- 3rdparty/zlib/{1.2.8 => 1.2.11}/crc32.c | 41 +- 3rdparty/zlib/{1.2.8 => 1.2.11}/crc32.h | 0 3rdparty/zlib/{1.2.8 => 1.2.11}/deflate.c | 802 +++++++++++------- 3rdparty/zlib/{1.2.8 => 1.2.11}/deflate.h | 35 +- 3rdparty/zlib/{1.2.8 => 1.2.11}/gzclose.c | 0 3rdparty/zlib/{1.2.8 => 1.2.11}/gzguts.h | 23 +- 3rdparty/zlib/{1.2.8 => 1.2.11}/gzlib.c | 31 +- 3rdparty/zlib/{1.2.8 => 1.2.11}/gzread.c | 156 ++-- 3rdparty/zlib/{1.2.8 => 1.2.11}/gzwrite.c | 332 +++++--- 3rdparty/zlib/{1.2.8 => 1.2.11}/infback.c | 4 +- 3rdparty/zlib/{1.2.8 => 1.2.11}/inffast.c | 85 +- 3rdparty/zlib/{1.2.8 => 1.2.11}/inffast.h | 0 3rdparty/zlib/{1.2.8 => 1.2.11}/inffixed.h | 0 3rdparty/zlib/{1.2.8 => 1.2.11}/inflate.c | 123 ++- 3rdparty/zlib/{1.2.8 => 1.2.11}/inflate.h | 11 +- 3rdparty/zlib/{1.2.8 => 1.2.11}/inftrees.c | 26 +- 3rdparty/zlib/{1.2.8 => 1.2.11}/inftrees.h | 0 3rdparty/zlib/{1.2.8 => 1.2.11}/treebuild.xml | 6 +- 3rdparty/zlib/{1.2.8 => 1.2.11}/trees.c | 99 +-- 3rdparty/zlib/{1.2.8 => 1.2.11}/trees.h | 0 3rdparty/zlib/1.2.11/uncompr.c | 93 ++ 3rdparty/zlib/1.2.11/zconf.h | 534 ++++++++++++ .../zlib/{1.2.8 => 1.2.11}/zconf.h.cmakein | 43 +- 3rdparty/zlib/{1.2.8 => 1.2.11}/zconf.h.in | 41 +- 3rdparty/zlib/{1.2.8 => 1.2.11}/zlib.3 | 72 +- 3rdparty/zlib/{1.2.8 => 1.2.11}/zlib.h | 452 ++++++---- 3rdparty/zlib/{1.2.8 => 1.2.11}/zlib.map | 11 + .../zlib/{1.2.8 => 1.2.11}/zlib.pc.cmakein | 0 3rdparty/zlib/1.2.11/zlib.pc.in | 13 + 3rdparty/zlib/{1.2.8 => 1.2.11}/zutil.c | 49 +- 3rdparty/zlib/{1.2.8 => 1.2.11}/zutil.h | 52 +- 3rdparty/zlib/1.2.8/uncompr.c | 59 -- 3rdparty/zlib/CMakeLists.txt | 4 +- 3rdparty/zlib/Makefile.am | 66 +- 37 files changed, 2265 insertions(+), 1067 deletions(-) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/README (96%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/adler32.c (92%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/compress.c (74%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/crc32.c (91%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/crc32.h (100%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/deflate.c (75%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/deflate.h (92%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/gzclose.c (100%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/gzguts.h (89%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/gzlib.c (95%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/gzread.c (85%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/gzwrite.c (63%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/infback.c (99%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/inffast.c (85%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/inffast.h (100%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/inffixed.h (100%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/inflate.c (93%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/inflate.h (94%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/inftrees.c (95%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/inftrees.h (100%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/treebuild.xml (96%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/trees.c (95%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/trees.h (100%) create mode 100644 3rdparty/zlib/1.2.11/uncompr.c create mode 100644 3rdparty/zlib/1.2.11/zconf.h rename 3rdparty/zlib/{1.2.8 => 1.2.11}/zconf.h.cmakein (93%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/zconf.h.in (93%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/zlib.3 (71%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/zlib.h (82%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/zlib.map (87%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/zlib.pc.cmakein (100%) create mode 100644 3rdparty/zlib/1.2.11/zlib.pc.in rename 3rdparty/zlib/{1.2.8 => 1.2.11}/zutil.c (86%) rename 3rdparty/zlib/{1.2.8 => 1.2.11}/zutil.h (88%) delete mode 100644 3rdparty/zlib/1.2.8/uncompr.c diff --git a/3rdparty/zlib/1.2.8/README b/3rdparty/zlib/1.2.11/README similarity index 96% rename from 3rdparty/zlib/1.2.8/README rename to 3rdparty/zlib/1.2.11/README index 5ca9d127ed..51106de475 100644 --- a/3rdparty/zlib/1.2.8/README +++ b/3rdparty/zlib/1.2.11/README @@ -1,6 +1,6 @@ ZLIB DATA COMPRESSION LIBRARY -zlib 1.2.8 is a general purpose data compression library. All the code is +zlib 1.2.11 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://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and @@ -31,7 +31,7 @@ Mark Nelson 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 1.2.8 are documented in the file ChangeLog. +The changes made in version 1.2.11 are documented in the file ChangeLog. Unsupported third party contributions are provided in directory contrib/ . @@ -84,7 +84,7 @@ Acknowledgments: Copyright notice: - (C) 1995-2013 Jean-loup Gailly and Mark Adler + (C) 1995-2017 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 diff --git a/3rdparty/zlib/1.2.8/adler32.c b/3rdparty/zlib/1.2.11/adler32.c similarity index 92% rename from 3rdparty/zlib/1.2.8/adler32.c rename to 3rdparty/zlib/1.2.11/adler32.c index a868f073d8..d0be4380a3 100644 --- a/3rdparty/zlib/1.2.8/adler32.c +++ b/3rdparty/zlib/1.2.11/adler32.c @@ -1,5 +1,5 @@ /* adler32.c -- compute the Adler-32 checksum of a data stream - * Copyright (C) 1995-2011 Mark Adler + * Copyright (C) 1995-2011, 2016 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -7,11 +7,9 @@ #include "zutil.h" -#define local static - local uLong adler32_combine_ OF((uLong adler1, uLong adler2, z_off64_t len2)); -#define BASE 65521 /* largest prime smaller than 65536 */ +#define BASE 65521U /* 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 */ @@ -62,10 +60,10 @@ local uLong adler32_combine_ OF((uLong adler1, uLong adler2, z_off64_t len2)); #endif /* ========================================================================= */ -uLong ZEXPORT adler32(adler, buf, len) +uLong ZEXPORT adler32_z(adler, buf, len) uLong adler; const Bytef *buf; - uInt len; + z_size_t len; { unsigned long sum2; unsigned n; @@ -132,6 +130,15 @@ uLong ZEXPORT adler32(adler, buf, len) return adler | (sum2 << 16); } +/* ========================================================================= */ +uLong ZEXPORT adler32(adler, buf, len) + uLong adler; + const Bytef *buf; + uInt len; +{ + return adler32_z(adler, buf, len); +} + /* ========================================================================= */ local uLong adler32_combine_(adler1, adler2, len2) uLong adler1; @@ -156,7 +163,7 @@ local uLong adler32_combine_(adler1, adler2, len2) sum2 += ((adler1 >> 16) & 0xffff) + ((adler2 >> 16) & 0xffff) + BASE - rem; if (sum1 >= BASE) sum1 -= BASE; if (sum1 >= BASE) sum1 -= BASE; - if (sum2 >= (BASE << 1)) sum2 -= (BASE << 1); + if (sum2 >= ((unsigned long)BASE << 1)) sum2 -= ((unsigned long)BASE << 1); if (sum2 >= BASE) sum2 -= BASE; return sum1 | (sum2 << 16); } diff --git a/3rdparty/zlib/1.2.8/compress.c b/3rdparty/zlib/1.2.11/compress.c similarity index 74% rename from 3rdparty/zlib/1.2.8/compress.c rename to 3rdparty/zlib/1.2.11/compress.c index 6e9762676a..e2db404abf 100644 --- a/3rdparty/zlib/1.2.8/compress.c +++ b/3rdparty/zlib/1.2.11/compress.c @@ -1,5 +1,5 @@ /* compress.c -- compress a memory buffer - * Copyright (C) 1995-2005 Jean-loup Gailly. + * Copyright (C) 1995-2005, 2014, 2016 Jean-loup Gailly, Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -28,16 +28,11 @@ int ZEXPORT compress2 (dest, destLen, source, sourceLen, level) { z_stream stream; int err; + const uInt max = (uInt)-1; + uLong left; - stream.next_in = (z_const Bytef *)source; - stream.avail_in = (uInt)sourceLen; -#ifdef MAXSEG_64K - /* Check for source > 64K on 16-bit machine: */ - if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; -#endif - stream.next_out = dest; - stream.avail_out = (uInt)*destLen; - if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; + left = *destLen; + *destLen = 0; stream.zalloc = (alloc_func)0; stream.zfree = (free_func)0; @@ -46,15 +41,26 @@ int ZEXPORT compress2 (dest, destLen, source, sourceLen, level) err = deflateInit(&stream, level); if (err != Z_OK) return err; - err = deflate(&stream, Z_FINISH); - if (err != Z_STREAM_END) { - deflateEnd(&stream); - return err == Z_OK ? Z_BUF_ERROR : err; - } - *destLen = stream.total_out; + stream.next_out = dest; + stream.avail_out = 0; + stream.next_in = (z_const Bytef *)source; + stream.avail_in = 0; + + do { + if (stream.avail_out == 0) { + stream.avail_out = left > (uLong)max ? max : (uInt)left; + left -= stream.avail_out; + } + if (stream.avail_in == 0) { + stream.avail_in = sourceLen > (uLong)max ? max : (uInt)sourceLen; + sourceLen -= stream.avail_in; + } + err = deflate(&stream, sourceLen ? Z_NO_FLUSH : Z_FINISH); + } while (err == Z_OK); - err = deflateEnd(&stream); - return err; + *destLen = stream.total_out; + deflateEnd(&stream); + return err == Z_STREAM_END ? Z_OK : err; } /* =========================================================================== diff --git a/3rdparty/zlib/1.2.8/crc32.c b/3rdparty/zlib/1.2.11/crc32.c similarity index 91% rename from 3rdparty/zlib/1.2.8/crc32.c rename to 3rdparty/zlib/1.2.11/crc32.c index 979a7190a3..9580440c0e 100644 --- a/3rdparty/zlib/1.2.8/crc32.c +++ b/3rdparty/zlib/1.2.11/crc32.c @@ -1,5 +1,5 @@ /* crc32.c -- compute the CRC-32 of a data stream - * Copyright (C) 1995-2006, 2010, 2011, 2012 Mark Adler + * Copyright (C) 1995-2006, 2010, 2011, 2012, 2016 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h * * Thanks to Rodney Brown for his contribution of faster @@ -30,17 +30,15 @@ #include "zutil.h" /* for STDC and FAR definitions */ -#define local static - /* Definitions for doing the crc four data bytes at a time. */ #if !defined(NOBYFOUR) && defined(Z_U4) # define BYFOUR #endif #ifdef BYFOUR local unsigned long crc32_little OF((unsigned long, - const unsigned char FAR *, unsigned)); + const unsigned char FAR *, z_size_t)); local unsigned long crc32_big OF((unsigned long, - const unsigned char FAR *, unsigned)); + const unsigned char FAR *, z_size_t)); # define TBLS 8 #else # define TBLS 1 @@ -201,10 +199,10 @@ const z_crc_t FAR * ZEXPORT get_crc_table() #define DO8 DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1 /* ========================================================================= */ -unsigned long ZEXPORT crc32(crc, buf, len) +unsigned long ZEXPORT crc32_z(crc, buf, len) unsigned long crc; const unsigned char FAR *buf; - uInt len; + z_size_t len; { if (buf == Z_NULL) return 0UL; @@ -235,8 +233,29 @@ unsigned long ZEXPORT crc32(crc, buf, len) return crc ^ 0xffffffffUL; } +/* ========================================================================= */ +unsigned long ZEXPORT crc32(crc, buf, len) + unsigned long crc; + const unsigned char FAR *buf; + uInt len; +{ + return crc32_z(crc, buf, len); +} + #ifdef BYFOUR +/* + This BYFOUR code accesses the passed unsigned char * buffer with a 32-bit + integer pointer type. This violates the strict aliasing rule, where a + compiler can assume, for optimization purposes, that two pointers to + fundamentally different types won't ever point to the same memory. This can + manifest as a problem only if one of the pointers is written to. This code + only reads from those pointers. So long as this code remains isolated in + this compilation unit, there won't be a problem. For this reason, this code + should not be copied and pasted into a compilation unit in which other code + writes to the buffer that is passed to these routines. + */ + /* ========================================================================= */ #define DOLIT4 c ^= *buf4++; \ c = crc_table[3][c & 0xff] ^ crc_table[2][(c >> 8) & 0xff] ^ \ @@ -247,7 +266,7 @@ unsigned long ZEXPORT crc32(crc, buf, len) local unsigned long crc32_little(crc, buf, len) unsigned long crc; const unsigned char FAR *buf; - unsigned len; + z_size_t len; { register z_crc_t c; register const z_crc_t FAR *buf4; @@ -278,7 +297,7 @@ local unsigned long crc32_little(crc, buf, len) } /* ========================================================================= */ -#define DOBIG4 c ^= *++buf4; \ +#define DOBIG4 c ^= *buf4++; \ c = crc_table[4][c & 0xff] ^ crc_table[5][(c >> 8) & 0xff] ^ \ crc_table[6][(c >> 16) & 0xff] ^ crc_table[7][c >> 24] #define DOBIG32 DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4 @@ -287,7 +306,7 @@ local unsigned long crc32_little(crc, buf, len) local unsigned long crc32_big(crc, buf, len) unsigned long crc; const unsigned char FAR *buf; - unsigned len; + z_size_t len; { register z_crc_t c; register const z_crc_t FAR *buf4; @@ -300,7 +319,6 @@ local unsigned long crc32_big(crc, buf, len) } buf4 = (const z_crc_t FAR *)(const void FAR *)buf; - buf4--; while (len >= 32) { DOBIG32; len -= 32; @@ -309,7 +327,6 @@ local unsigned long crc32_big(crc, buf, len) DOBIG4; len -= 4; } - buf4++; buf = (const unsigned char FAR *)buf4; if (len) do { diff --git a/3rdparty/zlib/1.2.8/crc32.h b/3rdparty/zlib/1.2.11/crc32.h similarity index 100% rename from 3rdparty/zlib/1.2.8/crc32.h rename to 3rdparty/zlib/1.2.11/crc32.h diff --git a/3rdparty/zlib/1.2.8/deflate.c b/3rdparty/zlib/1.2.11/deflate.c similarity index 75% rename from 3rdparty/zlib/1.2.8/deflate.c rename to 3rdparty/zlib/1.2.11/deflate.c index 696957705b..1ec761448d 100644 --- a/3rdparty/zlib/1.2.8/deflate.c +++ b/3rdparty/zlib/1.2.11/deflate.c @@ -1,5 +1,5 @@ /* deflate.c -- compress data using the deflation algorithm - * Copyright (C) 1995-2013 Jean-loup Gailly and Mark Adler + * Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -52,7 +52,7 @@ #include "deflate.h" const char deflate_copyright[] = - " deflate 1.2.8 Copyright 1995-2013 Jean-loup Gailly and Mark Adler "; + " deflate 1.2.11 Copyright 1995-2017 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 @@ -73,6 +73,8 @@ typedef enum { typedef block_state (*compress_func) OF((deflate_state *s, int flush)); /* Compression function. Returns the block state after the call. */ +local int deflateStateCheck OF((z_streamp strm)); +local void slide_hash OF((deflate_state *s)); local void fill_window OF((deflate_state *s)); local block_state deflate_stored OF((deflate_state *s, int flush)); local block_state deflate_fast OF((deflate_state *s, int flush)); @@ -84,15 +86,16 @@ local block_state deflate_huff OF((deflate_state *s, int flush)); local void lm_init OF((deflate_state *s)); local void putShortMSB OF((deflate_state *s, uInt b)); local void flush_pending OF((z_streamp strm)); -local int read_buf OF((z_streamp strm, Bytef *buf, unsigned size)); +local unsigned read_buf OF((z_streamp strm, Bytef *buf, unsigned size)); #ifdef ASMV +# pragma message("Assembler code may have bugs -- use at your own risk") void match_init OF((void)); /* asm code initialization */ uInt longest_match OF((deflate_state *s, IPos cur_match)); #else local uInt longest_match OF((deflate_state *s, IPos cur_match)); #endif -#ifdef DEBUG +#ifdef ZLIB_DEBUG local void check_match OF((deflate_state *s, IPos start, IPos match, int length)); #endif @@ -148,21 +151,14 @@ local const config configuration_table[10] = { * meaning. */ -#define EQUAL 0 -/* result of memcmp for equal strings */ - -#ifndef NO_DUMMY_DECL -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)) +#define RANK(f) (((f) * 2) - ((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 - * input characters, so that a running hash key can be computed from the - * previous key instead of complete recalculation each time. + * IN assertion: all calls to UPDATE_HASH are made with consecutive input + * characters, so that a running hash key can be computed from the previous + * key instead of complete recalculation each time. */ #define UPDATE_HASH(s,h,c) (h = (((h)<hash_shift) ^ (c)) & s->hash_mask) @@ -173,9 +169,9 @@ struct static_tree_desc_s {int dummy;}; /* for buggy compilers */ * the previous length of the hash chain. * If this file is compiled with -DFASTEST, the compression level is forced * to 1, and no hash chains are maintained. - * IN assertion: all calls to to INSERT_STRING are made with consecutive - * input characters and the first MIN_MATCH bytes of str are valid - * (except for the last MIN_MATCH-1 bytes of the input file). + * IN assertion: all calls to INSERT_STRING are made with consecutive input + * characters and the first MIN_MATCH bytes of str are valid (except for + * the last MIN_MATCH-1 bytes of the input file). */ #ifdef FASTEST #define INSERT_STRING(s, str, match_head) \ @@ -197,6 +193,37 @@ struct static_tree_desc_s {int dummy;}; /* for buggy compilers */ s->head[s->hash_size-1] = NIL; \ zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head)); +/* =========================================================================== + * Slide the hash table when sliding the window down (could be avoided with 32 + * bit values at the expense of memory usage). We slide even when level == 0 to + * keep the hash table consistent if we switch back to level > 0 later. + */ +local void slide_hash(s) + deflate_state *s; +{ + unsigned n, m; + Posf *p; + uInt wsize = s->w_size; + + n = s->hash_size; + p = &s->head[n]; + do { + m = *--p; + *p = (Pos)(m >= wsize ? m - wsize : NIL); + } while (--n); + n = wsize; +#ifndef FASTEST + p = &s->prev[n]; + do { + m = *--p; + *p = (Pos)(m >= wsize ? m - wsize : NIL); + /* If n is not on any hash chain, prev[n] is garbage but + * its value will never be used. + */ + } while (--n); +#endif +} + /* ========================================================================= */ int ZEXPORT deflateInit_(strm, level, version, stream_size) z_streamp strm; @@ -270,7 +297,7 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, #endif if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED || windowBits < 8 || windowBits > 15 || level < 0 || level > 9 || - strategy < 0 || strategy > Z_FIXED) { + strategy < 0 || strategy > Z_FIXED || (windowBits == 8 && wrap != 1)) { return Z_STREAM_ERROR; } if (windowBits == 8) windowBits = 9; /* until 256-byte window bug fixed */ @@ -278,14 +305,15 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, if (s == Z_NULL) return Z_MEM_ERROR; strm->state = (struct internal_state FAR *)s; s->strm = strm; + s->status = INIT_STATE; /* to pass state test in deflateReset() */ s->wrap = wrap; s->gzhead = Z_NULL; - s->w_bits = windowBits; + s->w_bits = (uInt)windowBits; s->w_size = 1 << s->w_bits; s->w_mask = s->w_size - 1; - s->hash_bits = memLevel + 7; + s->hash_bits = (uInt)memLevel + 7; s->hash_size = 1 << s->hash_bits; s->hash_mask = s->hash_size - 1; s->hash_shift = ((s->hash_bits+MIN_MATCH-1)/MIN_MATCH); @@ -319,6 +347,31 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, return deflateReset(strm); } +/* ========================================================================= + * Check for a valid deflate stream state. Return 0 if ok, 1 if not. + */ +local int deflateStateCheck (strm) + z_streamp strm; +{ + deflate_state *s; + if (strm == Z_NULL || + strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0) + return 1; + s = strm->state; + if (s == Z_NULL || s->strm != strm || (s->status != INIT_STATE && +#ifdef GZIP + s->status != GZIP_STATE && +#endif + s->status != EXTRA_STATE && + s->status != NAME_STATE && + s->status != COMMENT_STATE && + s->status != HCRC_STATE && + s->status != BUSY_STATE && + s->status != FINISH_STATE)) + return 1; + return 0; +} + /* ========================================================================= */ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength) z_streamp strm; @@ -331,7 +384,7 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength) unsigned avail; z_const unsigned char *next; - if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL) + if (deflateStateCheck(strm) || dictionary == Z_NULL) return Z_STREAM_ERROR; s = strm->state; wrap = s->wrap; @@ -388,14 +441,35 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength) return Z_OK; } +/* ========================================================================= */ +int ZEXPORT deflateGetDictionary (strm, dictionary, dictLength) + z_streamp strm; + Bytef *dictionary; + uInt *dictLength; +{ + deflate_state *s; + uInt len; + + if (deflateStateCheck(strm)) + return Z_STREAM_ERROR; + s = strm->state; + len = s->strstart + s->lookahead; + if (len > s->w_size) + len = s->w_size; + if (dictionary != Z_NULL && len) + zmemcpy(dictionary, s->window + s->strstart + s->lookahead - len, len); + if (dictLength != Z_NULL) + *dictLength = len; + return Z_OK; +} + /* ========================================================================= */ int ZEXPORT deflateResetKeep (strm) z_streamp strm; { deflate_state *s; - if (strm == Z_NULL || strm->state == Z_NULL || - strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0) { + if (deflateStateCheck(strm)) { return Z_STREAM_ERROR; } @@ -410,7 +484,11 @@ int ZEXPORT deflateResetKeep (strm) if (s->wrap < 0) { s->wrap = -s->wrap; /* was made negative by deflate(..., Z_FINISH); */ } - s->status = s->wrap ? INIT_STATE : BUSY_STATE; + s->status = +#ifdef GZIP + s->wrap == 2 ? GZIP_STATE : +#endif + s->wrap ? INIT_STATE : BUSY_STATE; strm->adler = #ifdef GZIP s->wrap == 2 ? crc32(0L, Z_NULL, 0) : @@ -440,8 +518,8 @@ int ZEXPORT deflateSetHeader (strm, head) z_streamp strm; gz_headerp head; { - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - if (strm->state->wrap != 2) return Z_STREAM_ERROR; + if (deflateStateCheck(strm) || strm->state->wrap != 2) + return Z_STREAM_ERROR; strm->state->gzhead = head; return Z_OK; } @@ -452,7 +530,7 @@ int ZEXPORT deflatePending (strm, pending, bits) int *bits; z_streamp strm; { - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + if (deflateStateCheck(strm)) return Z_STREAM_ERROR; if (pending != Z_NULL) *pending = strm->state->pending; if (bits != Z_NULL) @@ -469,7 +547,7 @@ int ZEXPORT deflatePrime (strm, bits, value) deflate_state *s; int put; - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + if (deflateStateCheck(strm)) return Z_STREAM_ERROR; s = strm->state; if ((Bytef *)(s->d_buf) < s->pending_out + ((Buf_size + 7) >> 3)) return Z_BUF_ERROR; @@ -494,9 +572,8 @@ int ZEXPORT deflateParams(strm, level, strategy) { deflate_state *s; compress_func func; - int err = Z_OK; - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + if (deflateStateCheck(strm)) return Z_STREAM_ERROR; s = strm->state; #ifdef FASTEST @@ -510,13 +587,22 @@ int ZEXPORT deflateParams(strm, level, strategy) func = configuration_table[s->level].func; if ((strategy != s->strategy || func != configuration_table[level].func) && - strm->total_in != 0) { + s->high_water) { /* Flush the last buffer: */ - err = deflate(strm, Z_BLOCK); - if (err == Z_BUF_ERROR && s->pending == 0) - err = Z_OK; + int err = deflate(strm, Z_BLOCK); + if (err == Z_STREAM_ERROR) + return err; + if (strm->avail_out == 0) + return Z_BUF_ERROR; } if (s->level != level) { + if (s->level == 0 && s->matches != 0) { + if (s->matches == 1) + slide_hash(s); + else + CLEAR_HASH(s); + s->matches = 0; + } s->level = level; s->max_lazy_match = configuration_table[level].max_lazy; s->good_match = configuration_table[level].good_length; @@ -524,7 +610,7 @@ int ZEXPORT deflateParams(strm, level, strategy) s->max_chain_length = configuration_table[level].max_chain; } s->strategy = strategy; - return err; + return Z_OK; } /* ========================================================================= */ @@ -537,12 +623,12 @@ int ZEXPORT deflateTune(strm, good_length, max_lazy, nice_length, max_chain) { deflate_state *s; - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + if (deflateStateCheck(strm)) return Z_STREAM_ERROR; s = strm->state; - s->good_match = good_length; - s->max_lazy_match = max_lazy; + s->good_match = (uInt)good_length; + s->max_lazy_match = (uInt)max_lazy; s->nice_match = nice_length; - s->max_chain_length = max_chain; + s->max_chain_length = (uInt)max_chain; return Z_OK; } @@ -569,14 +655,13 @@ uLong ZEXPORT deflateBound(strm, sourceLen) { deflate_state *s; uLong complen, wraplen; - Bytef *str; /* conservative upper bound for compressed data */ complen = sourceLen + ((sourceLen + 7) >> 3) + ((sourceLen + 63) >> 6) + 5; /* if can't get parameters, return conservative bound plus zlib wrapper */ - if (strm == Z_NULL || strm->state == Z_NULL) + if (deflateStateCheck(strm)) return complen + 6; /* compute wrapper length */ @@ -588,9 +673,11 @@ uLong ZEXPORT deflateBound(strm, sourceLen) case 1: /* zlib wrapper */ wraplen = 6 + (s->strstart ? 4 : 0); break; +#ifdef GZIP case 2: /* gzip wrapper */ wraplen = 18; if (s->gzhead != Z_NULL) { /* user-supplied gzip header */ + Bytef *str; if (s->gzhead->extra != Z_NULL) wraplen += 2 + s->gzhead->extra_len; str = s->gzhead->name; @@ -607,6 +694,7 @@ uLong ZEXPORT deflateBound(strm, sourceLen) wraplen += 2; } break; +#endif default: /* for compiler happiness */ wraplen = 6; } @@ -634,10 +722,10 @@ local void putShortMSB (s, b) } /* ========================================================================= - * Flush as much pending output as possible. All deflate() output goes - * through this function so some applications may wish to modify it - * to avoid allocating a large strm->next_out buffer and copying into it. - * (See also read_buf()). + * Flush as much pending output as possible. All deflate() output, except for + * some deflate_stored() output, goes through this function so some + * applications may wish to modify it to avoid allocating a large + * strm->next_out buffer and copying into it. (See also read_buf()). */ local void flush_pending(strm) z_streamp strm; @@ -654,13 +742,23 @@ local void flush_pending(strm) strm->next_out += len; s->pending_out += len; strm->total_out += len; - strm->avail_out -= len; - s->pending -= len; + strm->avail_out -= len; + s->pending -= len; if (s->pending == 0) { s->pending_out = s->pending_buf; } } +/* =========================================================================== + * Update the header CRC with the bytes s->pending_buf[beg..s->pending - 1]. + */ +#define HCRC_UPDATE(beg) \ + do { \ + if (s->gzhead->hcrc && s->pending > (beg)) \ + strm->adler = crc32(strm->adler, s->pending_buf + (beg), \ + s->pending - (beg)); \ + } while (0) + /* ========================================================================= */ int ZEXPORT deflate (strm, flush) z_streamp strm; @@ -669,230 +767,229 @@ int ZEXPORT deflate (strm, flush) int old_flush; /* value of flush param for previous deflate call */ deflate_state *s; - if (strm == Z_NULL || strm->state == Z_NULL || - flush > Z_BLOCK || flush < 0) { + if (deflateStateCheck(strm) || flush > Z_BLOCK || flush < 0) { return Z_STREAM_ERROR; } s = strm->state; if (strm->next_out == Z_NULL || - (strm->next_in == Z_NULL && strm->avail_in != 0) || + (strm->avail_in != 0 && strm->next_in == Z_NULL) || (s->status == FINISH_STATE && flush != Z_FINISH)) { ERR_RETURN(strm, Z_STREAM_ERROR); } if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR); - s->strm = strm; /* just in case */ old_flush = s->last_flush; s->last_flush = flush; + /* Flush as much pending output as possible */ + if (s->pending != 0) { + flush_pending(strm); + if (strm->avail_out == 0) { + /* Since avail_out is 0, deflate will be called again with + * more output space, but possibly with both pending and + * avail_in equal to zero. There won't be anything to do, + * but this is not an error situation so make sure we + * return OK instead of BUF_ERROR at next call of deflate: + */ + s->last_flush = -1; + return Z_OK; + } + + /* Make sure there is something to do and avoid duplicate consecutive + * 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 && RANK(flush) <= RANK(old_flush) && + flush != Z_FINISH) { + ERR_RETURN(strm, Z_BUF_ERROR); + } + + /* User must not provide more input after the first FINISH: */ + if (s->status == FINISH_STATE && strm->avail_in != 0) { + ERR_RETURN(strm, Z_BUF_ERROR); + } + /* Write the header */ if (s->status == INIT_STATE) { -#ifdef GZIP - if (s->wrap == 2) { - strm->adler = crc32(0L, Z_NULL, 0); - put_byte(s, 31); - put_byte(s, 139); - put_byte(s, 8); - if (s->gzhead == Z_NULL) { - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, s->level == 9 ? 2 : - (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ? - 4 : 0)); - put_byte(s, OS_CODE); - s->status = BUSY_STATE; - } - else { - put_byte(s, (s->gzhead->text ? 1 : 0) + - (s->gzhead->hcrc ? 2 : 0) + - (s->gzhead->extra == Z_NULL ? 0 : 4) + - (s->gzhead->name == Z_NULL ? 0 : 8) + - (s->gzhead->comment == Z_NULL ? 0 : 16) - ); - put_byte(s, (Byte)(s->gzhead->time & 0xff)); - put_byte(s, (Byte)((s->gzhead->time >> 8) & 0xff)); - put_byte(s, (Byte)((s->gzhead->time >> 16) & 0xff)); - put_byte(s, (Byte)((s->gzhead->time >> 24) & 0xff)); - put_byte(s, s->level == 9 ? 2 : - (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ? - 4 : 0)); - put_byte(s, s->gzhead->os & 0xff); - if (s->gzhead->extra != Z_NULL) { - put_byte(s, s->gzhead->extra_len & 0xff); - put_byte(s, (s->gzhead->extra_len >> 8) & 0xff); - } - if (s->gzhead->hcrc) - strm->adler = crc32(strm->adler, s->pending_buf, - s->pending); - s->gzindex = 0; - s->status = EXTRA_STATE; - } - } + /* zlib header */ + uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8; + uInt level_flags; + + if (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2) + level_flags = 0; + else if (s->level < 6) + level_flags = 1; + else if (s->level == 6) + level_flags = 2; else -#endif - { - uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8; - uInt level_flags; - - if (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2) - level_flags = 0; - else if (s->level < 6) - level_flags = 1; - else if (s->level == 6) - level_flags = 2; - else - level_flags = 3; - header |= (level_flags << 6); - if (s->strstart != 0) header |= PRESET_DICT; - header += 31 - (header % 31); + level_flags = 3; + header |= (level_flags << 6); + if (s->strstart != 0) header |= PRESET_DICT; + header += 31 - (header % 31); + + putShortMSB(s, header); + /* Save the adler32 of the preset dictionary: */ + if (s->strstart != 0) { + putShortMSB(s, (uInt)(strm->adler >> 16)); + putShortMSB(s, (uInt)(strm->adler & 0xffff)); + } + strm->adler = adler32(0L, Z_NULL, 0); + s->status = BUSY_STATE; + + /* Compression must start with an empty pending buffer */ + flush_pending(strm); + if (s->pending != 0) { + s->last_flush = -1; + return Z_OK; + } + } +#ifdef GZIP + if (s->status == GZIP_STATE) { + /* gzip header */ + strm->adler = crc32(0L, Z_NULL, 0); + put_byte(s, 31); + put_byte(s, 139); + put_byte(s, 8); + if (s->gzhead == Z_NULL) { + put_byte(s, 0); + put_byte(s, 0); + put_byte(s, 0); + put_byte(s, 0); + put_byte(s, 0); + put_byte(s, s->level == 9 ? 2 : + (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ? + 4 : 0)); + put_byte(s, OS_CODE); s->status = BUSY_STATE; - putShortMSB(s, header); - /* Save the adler32 of the preset dictionary: */ - if (s->strstart != 0) { - putShortMSB(s, (uInt)(strm->adler >> 16)); - putShortMSB(s, (uInt)(strm->adler & 0xffff)); + /* Compression must start with an empty pending buffer */ + flush_pending(strm); + if (s->pending != 0) { + s->last_flush = -1; + return Z_OK; + } + } + else { + put_byte(s, (s->gzhead->text ? 1 : 0) + + (s->gzhead->hcrc ? 2 : 0) + + (s->gzhead->extra == Z_NULL ? 0 : 4) + + (s->gzhead->name == Z_NULL ? 0 : 8) + + (s->gzhead->comment == Z_NULL ? 0 : 16) + ); + put_byte(s, (Byte)(s->gzhead->time & 0xff)); + put_byte(s, (Byte)((s->gzhead->time >> 8) & 0xff)); + put_byte(s, (Byte)((s->gzhead->time >> 16) & 0xff)); + put_byte(s, (Byte)((s->gzhead->time >> 24) & 0xff)); + put_byte(s, s->level == 9 ? 2 : + (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ? + 4 : 0)); + put_byte(s, s->gzhead->os & 0xff); + if (s->gzhead->extra != Z_NULL) { + put_byte(s, s->gzhead->extra_len & 0xff); + put_byte(s, (s->gzhead->extra_len >> 8) & 0xff); } - strm->adler = adler32(0L, Z_NULL, 0); + if (s->gzhead->hcrc) + strm->adler = crc32(strm->adler, s->pending_buf, + s->pending); + s->gzindex = 0; + s->status = EXTRA_STATE; } } -#ifdef GZIP if (s->status == EXTRA_STATE) { if (s->gzhead->extra != Z_NULL) { - uInt beg = s->pending; /* start of bytes to update crc */ - - while (s->gzindex < (s->gzhead->extra_len & 0xffff)) { - if (s->pending == s->pending_buf_size) { - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - flush_pending(strm); - beg = s->pending; - if (s->pending == s->pending_buf_size) - break; + ulg beg = s->pending; /* start of bytes to update crc */ + uInt left = (s->gzhead->extra_len & 0xffff) - s->gzindex; + while (s->pending + left > s->pending_buf_size) { + uInt copy = s->pending_buf_size - s->pending; + zmemcpy(s->pending_buf + s->pending, + s->gzhead->extra + s->gzindex, copy); + s->pending = s->pending_buf_size; + HCRC_UPDATE(beg); + s->gzindex += copy; + flush_pending(strm); + if (s->pending != 0) { + s->last_flush = -1; + return Z_OK; } - put_byte(s, s->gzhead->extra[s->gzindex]); - s->gzindex++; - } - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - if (s->gzindex == s->gzhead->extra_len) { - s->gzindex = 0; - s->status = NAME_STATE; + beg = 0; + left -= copy; } + zmemcpy(s->pending_buf + s->pending, + s->gzhead->extra + s->gzindex, left); + s->pending += left; + HCRC_UPDATE(beg); + s->gzindex = 0; } - else - s->status = NAME_STATE; + s->status = NAME_STATE; } if (s->status == NAME_STATE) { if (s->gzhead->name != Z_NULL) { - uInt beg = s->pending; /* start of bytes to update crc */ + ulg beg = s->pending; /* start of bytes to update crc */ int val; - do { if (s->pending == s->pending_buf_size) { - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); + HCRC_UPDATE(beg); flush_pending(strm); - beg = s->pending; - if (s->pending == s->pending_buf_size) { - val = 1; - break; + if (s->pending != 0) { + s->last_flush = -1; + return Z_OK; } + beg = 0; } val = s->gzhead->name[s->gzindex++]; put_byte(s, val); } while (val != 0); - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - if (val == 0) { - s->gzindex = 0; - s->status = COMMENT_STATE; - } + HCRC_UPDATE(beg); + s->gzindex = 0; } - else - s->status = COMMENT_STATE; + s->status = COMMENT_STATE; } if (s->status == COMMENT_STATE) { if (s->gzhead->comment != Z_NULL) { - uInt beg = s->pending; /* start of bytes to update crc */ + ulg beg = s->pending; /* start of bytes to update crc */ int val; - do { if (s->pending == s->pending_buf_size) { - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); + HCRC_UPDATE(beg); flush_pending(strm); - beg = s->pending; - if (s->pending == s->pending_buf_size) { - val = 1; - break; + if (s->pending != 0) { + s->last_flush = -1; + return Z_OK; } + beg = 0; } val = s->gzhead->comment[s->gzindex++]; put_byte(s, val); } while (val != 0); - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - if (val == 0) - s->status = HCRC_STATE; + HCRC_UPDATE(beg); } - else - s->status = HCRC_STATE; + s->status = HCRC_STATE; } if (s->status == HCRC_STATE) { if (s->gzhead->hcrc) { - if (s->pending + 2 > s->pending_buf_size) + if (s->pending + 2 > s->pending_buf_size) { flush_pending(strm); - if (s->pending + 2 <= s->pending_buf_size) { - put_byte(s, (Byte)(strm->adler & 0xff)); - put_byte(s, (Byte)((strm->adler >> 8) & 0xff)); - strm->adler = crc32(0L, Z_NULL, 0); - s->status = BUSY_STATE; + if (s->pending != 0) { + s->last_flush = -1; + return Z_OK; + } } + put_byte(s, (Byte)(strm->adler & 0xff)); + put_byte(s, (Byte)((strm->adler >> 8) & 0xff)); + strm->adler = crc32(0L, Z_NULL, 0); } - else - s->status = BUSY_STATE; - } -#endif + s->status = BUSY_STATE; - /* Flush as much pending output as possible */ - if (s->pending != 0) { + /* Compression must start with an empty pending buffer */ flush_pending(strm); - if (strm->avail_out == 0) { - /* Since avail_out is 0, deflate will be called again with - * more output space, but possibly with both pending and - * avail_in equal to zero. There won't be anything to do, - * but this is not an error situation so make sure we - * return OK instead of BUF_ERROR at next call of deflate: - */ + if (s->pending != 0) { s->last_flush = -1; return Z_OK; } - - /* Make sure there is something to do and avoid duplicate consecutive - * 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 && RANK(flush) <= RANK(old_flush) && - flush != Z_FINISH) { - ERR_RETURN(strm, Z_BUF_ERROR); - } - - /* User must not provide more input after the first FINISH: */ - if (s->status == FINISH_STATE && strm->avail_in != 0) { - ERR_RETURN(strm, Z_BUF_ERROR); } +#endif /* Start a new block or continue the current one. */ @@ -900,9 +997,10 @@ int ZEXPORT deflate (strm, flush) (flush != Z_NO_FLUSH && s->status != FINISH_STATE)) { block_state bstate; - bstate = s->strategy == Z_HUFFMAN_ONLY ? deflate_huff(s, flush) : - (s->strategy == Z_RLE ? deflate_rle(s, flush) : - (*(configuration_table[s->level].func))(s, flush)); + bstate = s->level == 0 ? deflate_stored(s, flush) : + s->strategy == Z_HUFFMAN_ONLY ? deflate_huff(s, flush) : + s->strategy == Z_RLE ? deflate_rle(s, flush) : + (*(configuration_table[s->level].func))(s, flush); if (bstate == finish_started || bstate == finish_done) { s->status = FINISH_STATE; @@ -944,7 +1042,6 @@ int ZEXPORT deflate (strm, flush) } } } - Assert(strm->avail_out > 0, "bug2"); if (flush != Z_FINISH) return Z_OK; if (s->wrap <= 0) return Z_STREAM_END; @@ -981,18 +1078,9 @@ int ZEXPORT deflateEnd (strm) { int status; - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + if (deflateStateCheck(strm)) return Z_STREAM_ERROR; status = strm->state->status; - if (status != INIT_STATE && - status != EXTRA_STATE && - status != NAME_STATE && - status != COMMENT_STATE && - status != HCRC_STATE && - status != BUSY_STATE && - status != FINISH_STATE) { - return Z_STREAM_ERROR; - } /* Deallocate in reverse order of allocations: */ TRY_FREE(strm, strm->state->pending_buf); @@ -1023,7 +1111,7 @@ int ZEXPORT deflateCopy (dest, source) ushf *overlay; - if (source == Z_NULL || dest == Z_NULL || source->state == Z_NULL) { + if (deflateStateCheck(source) || dest == Z_NULL) { return Z_STREAM_ERROR; } @@ -1073,7 +1161,7 @@ int ZEXPORT deflateCopy (dest, source) * allocating a large strm->next_in buffer and copying from it. * (See also flush_pending()). */ -local int read_buf(strm, buf, size) +local unsigned read_buf(strm, buf, size) z_streamp strm; Bytef *buf; unsigned size; @@ -1097,7 +1185,7 @@ local int read_buf(strm, buf, size) strm->next_in += len; strm->total_in += len; - return (int)len; + return len; } /* =========================================================================== @@ -1151,9 +1239,9 @@ local uInt longest_match(s, cur_match) { unsigned chain_length = s->max_chain_length;/* max hash chain length */ register Bytef *scan = s->window + s->strstart; /* current string */ - register Bytef *match; /* matched string */ + register Bytef *match; /* matched string */ register int len; /* length of current match */ - int best_len = s->prev_length; /* best match length so far */ + int best_len = (int)s->prev_length; /* best match length so far */ int nice_match = s->nice_match; /* stop if match long enough */ IPos limit = s->strstart > (IPos)MAX_DIST(s) ? s->strstart - (IPos)MAX_DIST(s) : NIL; @@ -1188,7 +1276,7 @@ local uInt longest_match(s, cur_match) /* Do not look for matches beyond the end of the input. This is necessary * to make deflate deterministic. */ - if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; + if ((uInt)nice_match > s->lookahead) nice_match = (int)s->lookahead; Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); @@ -1349,7 +1437,11 @@ local uInt longest_match(s, cur_match) #endif /* FASTEST */ -#ifdef DEBUG +#ifdef ZLIB_DEBUG + +#define EQUAL 0 +/* result of memcmp for equal strings */ + /* =========================================================================== * Check that the match at match_start is indeed a match. */ @@ -1375,7 +1467,7 @@ local void check_match(s, start, match, length) } #else # define check_match(s, start, match, length) -#endif /* DEBUG */ +#endif /* ZLIB_DEBUG */ /* =========================================================================== * Fill the window when the lookahead becomes insufficient. @@ -1390,8 +1482,7 @@ local void check_match(s, start, match, length) local void fill_window(s) deflate_state *s; { - register unsigned n, m; - register Posf *p; + unsigned n; unsigned more; /* Amount of free space at the end of the window. */ uInt wsize = s->w_size; @@ -1418,35 +1509,11 @@ local void fill_window(s) */ if (s->strstart >= wsize+MAX_DIST(s)) { - zmemcpy(s->window, s->window+wsize, (unsigned)wsize); + zmemcpy(s->window, s->window+wsize, (unsigned)wsize - more); s->match_start -= wsize; s->strstart -= wsize; /* we now have strstart >= MAX_DIST */ s->block_start -= (long) wsize; - - /* Slide the hash table (could be avoided with 32 bit values - at the expense of memory usage). We slide even when level == 0 - to keep the hash table consistent if we switch back to level > 0 - later. (Using level 0 permanently is not an optimal usage of - zlib, so we don't care about this pathological case.) - */ - n = s->hash_size; - p = &s->head[n]; - do { - m = *--p; - *p = (Pos)(m >= wsize ? m-wsize : NIL); - } while (--n); - - n = wsize; -#ifndef FASTEST - p = &s->prev[n]; - do { - m = *--p; - *p = (Pos)(m >= wsize ? m-wsize : NIL); - /* If n is not on any hash chain, prev[n] is garbage but - * its value will never be used. - */ - } while (--n); -#endif + slide_hash(s); more += wsize; } if (s->strm->avail_in == 0) break; @@ -1552,70 +1619,199 @@ local void fill_window(s) if (s->strm->avail_out == 0) return (last) ? finish_started : need_more; \ } +/* Maximum stored block length in deflate format (not including header). */ +#define MAX_STORED 65535 + +/* Minimum of a and b. */ +#define MIN(a, b) ((a) > (b) ? (b) : (a)) + /* =========================================================================== * Copy without compression as much as possible from the input stream, return * the current block state. - * This function does not insert new strings in the dictionary since - * uncompressible data is probably not useful. This function is used - * only for the level=0 compression option. - * NOTE: this function should be optimized to avoid extra copying from - * window to pending_buf. + * + * In case deflateParams() is used to later switch to a non-zero compression + * level, s->matches (otherwise unused when storing) keeps track of the number + * of hash table slides to perform. If s->matches is 1, then one hash table + * slide will be done when switching. If s->matches is 2, the maximum value + * allowed here, then the hash table will be cleared, since two or more slides + * is the same as a clear. + * + * deflate_stored() is written to minimize the number of times an input byte is + * copied. It is most efficient with large input and output buffers, which + * maximizes the opportunites to have a single copy from next_in to next_out. */ local block_state deflate_stored(s, flush) deflate_state *s; int flush; { - /* Stored blocks are limited to 0xffff bytes, pending_buf is limited - * to pending_buf_size, and each stored block has a 5 byte header: + /* Smallest worthy block size when not flushing or finishing. By default + * this is 32K. This can be as small as 507 bytes for memLevel == 1. For + * large input and output buffers, the stored block size will be larger. */ - ulg max_block_size = 0xffff; - ulg max_start; - - if (max_block_size > s->pending_buf_size - 5) { - max_block_size = s->pending_buf_size - 5; - } + unsigned min_block = MIN(s->pending_buf_size - 5, s->w_size); - /* Copy as much as possible from input to output: */ - for (;;) { - /* Fill the window as much as possible: */ - if (s->lookahead <= 1) { - - Assert(s->strstart < s->w_size+MAX_DIST(s) || - s->block_start >= (long)s->w_size, "slide too late"); + /* Copy as many min_block or larger stored blocks directly to next_out as + * possible. If flushing, copy the remaining available input to next_out as + * stored blocks, if there is enough space. + */ + unsigned len, left, have, last = 0; + unsigned used = s->strm->avail_in; + do { + /* Set len to the maximum size block that we can copy directly with the + * available input data and output space. Set left to how much of that + * would be copied from what's left in the window. + */ + len = MAX_STORED; /* maximum deflate stored block length */ + have = (s->bi_valid + 42) >> 3; /* number of header bytes */ + if (s->strm->avail_out < have) /* need room for header */ + break; + /* maximum stored block length that will fit in avail_out: */ + have = s->strm->avail_out - have; + left = s->strstart - s->block_start; /* bytes left in window */ + if (len > (ulg)left + s->strm->avail_in) + len = left + s->strm->avail_in; /* limit len to the input */ + if (len > have) + len = have; /* limit len to the output */ + + /* If the stored block would be less than min_block in length, or if + * unable to copy all of the available input when flushing, then try + * copying to the window and the pending buffer instead. Also don't + * write an empty block when flushing -- deflate() does that. + */ + if (len < min_block && ((len == 0 && flush != Z_FINISH) || + flush == Z_NO_FLUSH || + len != left + s->strm->avail_in)) + break; - fill_window(s); - if (s->lookahead == 0 && flush == Z_NO_FLUSH) return need_more; + /* Make a dummy stored block in pending to get the header bytes, + * including any pending bits. This also updates the debugging counts. + */ + last = flush == Z_FINISH && len == left + s->strm->avail_in ? 1 : 0; + _tr_stored_block(s, (char *)0, 0L, last); + + /* Replace the lengths in the dummy stored block with len. */ + s->pending_buf[s->pending - 4] = len; + s->pending_buf[s->pending - 3] = len >> 8; + s->pending_buf[s->pending - 2] = ~len; + s->pending_buf[s->pending - 1] = ~len >> 8; + + /* Write the stored block header bytes. */ + flush_pending(s->strm); + +#ifdef ZLIB_DEBUG + /* Update debugging counts for the data about to be copied. */ + s->compressed_len += len << 3; + s->bits_sent += len << 3; +#endif - if (s->lookahead == 0) break; /* flush the current block */ + /* Copy uncompressed bytes from the window to next_out. */ + if (left) { + if (left > len) + left = len; + zmemcpy(s->strm->next_out, s->window + s->block_start, left); + s->strm->next_out += left; + s->strm->avail_out -= left; + s->strm->total_out += left; + s->block_start += left; + len -= left; } - Assert(s->block_start >= 0L, "block gone"); - - s->strstart += s->lookahead; - s->lookahead = 0; - - /* Emit a stored block if pending_buf will be full: */ - max_start = s->block_start + max_block_size; - if (s->strstart == 0 || (ulg)s->strstart >= max_start) { - /* strstart == 0 is possible when wraparound on 16-bit machine */ - s->lookahead = (uInt)(s->strstart - max_start); - s->strstart = (uInt)max_start; - FLUSH_BLOCK(s, 0); + + /* Copy uncompressed bytes directly from next_in to next_out, updating + * the check value. + */ + if (len) { + read_buf(s->strm, s->strm->next_out, len); + s->strm->next_out += len; + s->strm->avail_out -= len; + s->strm->total_out += len; } - /* Flush if we may have to slide, otherwise block_start may become - * negative and the data will be gone: + } while (last == 0); + + /* Update the sliding window with the last s->w_size bytes of the copied + * data, or append all of the copied data to the existing window if less + * than s->w_size bytes were copied. Also update the number of bytes to + * insert in the hash tables, in the event that deflateParams() switches to + * a non-zero compression level. + */ + used -= s->strm->avail_in; /* number of input bytes directly copied */ + if (used) { + /* If any input was used, then no unused input remains in the window, + * therefore s->block_start == s->strstart. */ - if (s->strstart - (uInt)s->block_start >= MAX_DIST(s)) { - FLUSH_BLOCK(s, 0); + if (used >= s->w_size) { /* supplant the previous history */ + s->matches = 2; /* clear hash */ + zmemcpy(s->window, s->strm->next_in - s->w_size, s->w_size); + s->strstart = s->w_size; } + else { + if (s->window_size - s->strstart <= used) { + /* Slide the window down. */ + s->strstart -= s->w_size; + zmemcpy(s->window, s->window + s->w_size, s->strstart); + if (s->matches < 2) + s->matches++; /* add a pending slide_hash() */ + } + zmemcpy(s->window + s->strstart, s->strm->next_in - used, used); + s->strstart += used; + } + s->block_start = s->strstart; + s->insert += MIN(used, s->w_size - s->insert); } - s->insert = 0; - if (flush == Z_FINISH) { - FLUSH_BLOCK(s, 1); + if (s->high_water < s->strstart) + s->high_water = s->strstart; + + /* If the last block was written to next_out, then done. */ + if (last) return finish_done; + + /* If flushing and all input has been consumed, then done. */ + if (flush != Z_NO_FLUSH && flush != Z_FINISH && + s->strm->avail_in == 0 && (long)s->strstart == s->block_start) + return block_done; + + /* Fill the window with any remaining input. */ + have = s->window_size - s->strstart - 1; + if (s->strm->avail_in > have && s->block_start >= (long)s->w_size) { + /* Slide the window down. */ + s->block_start -= s->w_size; + s->strstart -= s->w_size; + zmemcpy(s->window, s->window + s->w_size, s->strstart); + if (s->matches < 2) + s->matches++; /* add a pending slide_hash() */ + have += s->w_size; /* more space now */ } - if ((long)s->strstart > s->block_start) - FLUSH_BLOCK(s, 0); - return block_done; + if (have > s->strm->avail_in) + have = s->strm->avail_in; + if (have) { + read_buf(s->strm, s->window + s->strstart, have); + s->strstart += have; + } + if (s->high_water < s->strstart) + s->high_water = s->strstart; + + /* There was not enough avail_out to write a complete worthy or flushed + * stored block to next_out. Write a stored block to pending instead, if we + * have enough input for a worthy block, or if flushing and there is enough + * room for the remaining input as a stored block in the pending buffer. + */ + have = (s->bi_valid + 42) >> 3; /* number of header bytes */ + /* maximum stored block length that will fit in pending: */ + have = MIN(s->pending_buf_size - have, MAX_STORED); + min_block = MIN(have, s->w_size); + left = s->strstart - s->block_start; + if (left >= min_block || + ((left || flush == Z_FINISH) && flush != Z_NO_FLUSH && + s->strm->avail_in == 0 && left <= have)) { + len = MIN(left, have); + last = flush == Z_FINISH && s->strm->avail_in == 0 && + len == left ? 1 : 0; + _tr_stored_block(s, (charf *)s->window + s->block_start, len, last); + s->block_start += len; + flush_pending(s->strm); + } + + /* We've done all we can with the available input and output. */ + return last ? finish_started : need_more; } /* =========================================================================== @@ -1892,7 +2088,7 @@ local block_state deflate_rle(s, flush) prev == *++scan && prev == *++scan && prev == *++scan && prev == *++scan && scan < strend); - s->match_length = MAX_MATCH - (int)(strend - scan); + s->match_length = MAX_MATCH - (uInt)(strend - scan); if (s->match_length > s->lookahead) s->match_length = s->lookahead; } diff --git a/3rdparty/zlib/1.2.8/deflate.h b/3rdparty/zlib/1.2.11/deflate.h similarity index 92% rename from 3rdparty/zlib/1.2.8/deflate.h rename to 3rdparty/zlib/1.2.11/deflate.h index ce0299edd1..23ecdd312b 100644 --- a/3rdparty/zlib/1.2.8/deflate.h +++ b/3rdparty/zlib/1.2.11/deflate.h @@ -1,5 +1,5 @@ /* deflate.h -- internal compression state - * Copyright (C) 1995-2012 Jean-loup Gailly + * Copyright (C) 1995-2016 Jean-loup Gailly * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -51,13 +51,16 @@ #define Buf_size 16 /* size of bit buffer in bi_buf */ -#define INIT_STATE 42 -#define EXTRA_STATE 69 -#define NAME_STATE 73 -#define COMMENT_STATE 91 -#define HCRC_STATE 103 -#define BUSY_STATE 113 -#define FINISH_STATE 666 +#define INIT_STATE 42 /* zlib header -> BUSY_STATE */ +#ifdef GZIP +# define GZIP_STATE 57 /* gzip header -> BUSY_STATE | EXTRA_STATE */ +#endif +#define EXTRA_STATE 69 /* gzip extra block -> NAME_STATE */ +#define NAME_STATE 73 /* gzip file name -> COMMENT_STATE */ +#define COMMENT_STATE 91 /* gzip comment -> HCRC_STATE */ +#define HCRC_STATE 103 /* gzip header CRC -> BUSY_STATE */ +#define BUSY_STATE 113 /* deflate -> FINISH_STATE */ +#define FINISH_STATE 666 /* stream complete */ /* Stream status */ @@ -83,7 +86,7 @@ typedef struct static_tree_desc_s static_tree_desc; typedef struct tree_desc_s { ct_data *dyn_tree; /* the dynamic tree */ int max_code; /* largest code with non zero frequency */ - static_tree_desc *stat_desc; /* the corresponding static tree */ + const static_tree_desc *stat_desc; /* the corresponding static tree */ } FAR tree_desc; typedef ush Pos; @@ -100,10 +103,10 @@ typedef struct internal_state { Bytef *pending_buf; /* output still pending */ ulg pending_buf_size; /* size of pending_buf */ Bytef *pending_out; /* next pending byte to output to the stream */ - uInt pending; /* nb of bytes in the pending buffer */ + ulg pending; /* nb of bytes in the pending buffer */ int wrap; /* bit 0 true for zlib, bit 1 true for gzip */ gz_headerp gzhead; /* gzip header information to write */ - uInt gzindex; /* where in extra, name, or comment */ + ulg gzindex; /* where in extra, name, or comment */ Byte method; /* can only be DEFLATED */ int last_flush; /* value of flush param for previous deflate call */ @@ -249,7 +252,7 @@ typedef struct internal_state { uInt matches; /* number of string matches in current block */ uInt insert; /* bytes at end of window left to insert */ -#ifdef DEBUG +#ifdef ZLIB_DEBUG ulg compressed_len; /* total bit length of compressed file mod 2^32 */ ulg bits_sent; /* bit length of compressed data sent mod 2^32 */ #endif @@ -275,7 +278,7 @@ typedef struct internal_state { /* Output a byte on the stream. * IN assertion: there is enough room in pending_buf. */ -#define put_byte(s, c) {s->pending_buf[s->pending++] = (c);} +#define put_byte(s, c) {s->pending_buf[s->pending++] = (Bytef)(c);} #define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1) @@ -309,7 +312,7 @@ void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf, * used. */ -#ifndef DEBUG +#ifndef ZLIB_DEBUG /* Inline versions of _tr_tally for speed: */ #if defined(GEN_TREES_H) || !defined(STDC) @@ -328,8 +331,8 @@ void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf, flush = (s->last_lit == s->lit_bufsize-1); \ } # define _tr_tally_dist(s, distance, length, flush) \ - { uch len = (length); \ - ush dist = (distance); \ + { uch len = (uch)(length); \ + ush dist = (ush)(distance); \ s->d_buf[s->last_lit] = dist; \ s->l_buf[s->last_lit++] = len; \ dist--; \ diff --git a/3rdparty/zlib/1.2.8/gzclose.c b/3rdparty/zlib/1.2.11/gzclose.c similarity index 100% rename from 3rdparty/zlib/1.2.8/gzclose.c rename to 3rdparty/zlib/1.2.11/gzclose.c diff --git a/3rdparty/zlib/1.2.8/gzguts.h b/3rdparty/zlib/1.2.11/gzguts.h similarity index 89% rename from 3rdparty/zlib/1.2.8/gzguts.h rename to 3rdparty/zlib/1.2.11/gzguts.h index d87659d031..990a4d2514 100644 --- a/3rdparty/zlib/1.2.8/gzguts.h +++ b/3rdparty/zlib/1.2.11/gzguts.h @@ -1,5 +1,5 @@ /* gzguts.h -- zlib internal header definitions for gz* operations - * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013 Mark Adler + * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013, 2016 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -25,6 +25,10 @@ # include # include #endif + +#ifndef _POSIX_SOURCE +# define _POSIX_SOURCE +#endif #include #ifdef _WIN32 @@ -35,6 +39,10 @@ # include #endif +#if defined(_WIN32) || defined(__CYGWIN__) +# define WIDECHAR +#endif + #ifdef WINAPI_FAMILY # define open _open # define read _read @@ -95,18 +103,19 @@ # endif #endif -/* unlike snprintf (which is required in C99, yet still not supported by - Microsoft more than a decade later!), _snprintf does not guarantee null - termination of the result -- however this is only used in gzlib.c where +/* unlike snprintf (which is required in C99), _snprintf does not guarantee + null termination of the result -- however this is only used in gzlib.c where the result is assured to fit in the space provided */ -#ifdef _MSC_VER +#if defined(_MSC_VER) && _MSC_VER < 1900 # define snprintf _snprintf #endif #ifndef local # define local static #endif -/* compile with -Dlocal if your debugger can't find static symbols */ +/* since "static" is used to mean two completely different things in C, we + define "local" for the non-static meaning of "static", for readability + (compile with -Dlocal if your debugger can't find static symbols) */ /* gz* functions always use library allocation functions */ #ifndef STDC @@ -170,7 +179,7 @@ typedef struct { char *path; /* path or fd for error messages */ unsigned size; /* buffer size, zero if not allocated yet */ unsigned want; /* requested buffer size, default is GZBUFSIZE */ - unsigned char *in; /* input buffer */ + unsigned char *in; /* input buffer (double-sized when writing) */ unsigned char *out; /* output buffer (double-sized when reading) */ int direct; /* 0 if processing gzip, 1 if transparent */ /* just for reading */ diff --git a/3rdparty/zlib/1.2.8/gzlib.c b/3rdparty/zlib/1.2.11/gzlib.c similarity index 95% rename from 3rdparty/zlib/1.2.8/gzlib.c rename to 3rdparty/zlib/1.2.11/gzlib.c index fae202ef89..4105e6aff9 100644 --- a/3rdparty/zlib/1.2.8/gzlib.c +++ b/3rdparty/zlib/1.2.11/gzlib.c @@ -1,11 +1,11 @@ /* gzlib.c -- zlib functions common to reading and writing gzip files - * Copyright (C) 2004, 2010, 2011, 2012, 2013 Mark Adler + * Copyright (C) 2004-2017 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ #include "gzguts.h" -#if defined(_WIN32) && !defined(__BORLANDC__) +#if defined(_WIN32) && !defined(__BORLANDC__) && !defined(__MINGW32__) # define LSEEK _lseeki64 #else #if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 @@ -94,7 +94,7 @@ local gzFile gz_open(path, fd, mode) const char *mode; { gz_statep state; - size_t len; + z_size_t len; int oflag; #ifdef O_CLOEXEC int cloexec = 0; @@ -188,10 +188,10 @@ local gzFile gz_open(path, fd, mode) } /* save the path name for error messages */ -#ifdef _WIN32 +#ifdef WIDECHAR if (fd == -2) { len = wcstombs(NULL, path, 0); - if (len == (size_t)-1) + if (len == (z_size_t)-1) len = 0; } else @@ -202,7 +202,7 @@ local gzFile gz_open(path, fd, mode) free(state); return NULL; } -#ifdef _WIN32 +#ifdef WIDECHAR if (fd == -2) if (len) wcstombs(state->path, path, len + 1); @@ -211,7 +211,7 @@ local gzFile gz_open(path, fd, mode) else #endif #if !defined(NO_snprintf) && !defined(NO_vsnprintf) - snprintf(state->path, len + 1, "%s", (const char *)path); + (void)snprintf(state->path, len + 1, "%s", (const char *)path); #else strcpy(state->path, path); #endif @@ -239,7 +239,7 @@ local gzFile gz_open(path, fd, mode) /* open the file with the appropriate flags (or just use fd) */ state->fd = fd > -1 ? fd : ( -#ifdef _WIN32 +#ifdef WIDECHAR fd == -2 ? _wopen(path, oflag, 0666) : #endif open((const char *)path, oflag, 0666)); @@ -248,8 +248,10 @@ local gzFile gz_open(path, fd, mode) free(state); return NULL; } - if (state->mode == GZ_APPEND) + if (state->mode == GZ_APPEND) { + LSEEK(state->fd, 0, SEEK_END); /* so gzoffset() is correct */ state->mode = GZ_WRITE; /* simplify later checks */ + } /* save the current position for rewinding (only if reading) */ if (state->mode == GZ_READ) { @@ -291,7 +293,7 @@ gzFile ZEXPORT gzdopen(fd, mode) if (fd == -1 || (path = (char *)malloc(7 + 3 * sizeof(int))) == NULL) return NULL; #if !defined(NO_snprintf) && !defined(NO_vsnprintf) - snprintf(path, 7 + 3 * sizeof(int), "", fd); /* for debugging */ + (void)snprintf(path, 7 + 3 * sizeof(int), "", fd); #else sprintf(path, "", fd); /* for debugging */ #endif @@ -301,7 +303,7 @@ gzFile ZEXPORT gzdopen(fd, mode) } /* -- see zlib.h -- */ -#ifdef _WIN32 +#ifdef WIDECHAR gzFile ZEXPORT gzopen_w(path, mode) const wchar_t *path; const char *mode; @@ -329,6 +331,8 @@ int ZEXPORT gzbuffer(file, size) return -1; /* check and set requested size */ + if ((size << 1) < size) + return -1; /* need to be able to double it */ if (size < 2) size = 2; /* need two bytes to check magic header */ state->want = size; @@ -604,14 +608,13 @@ void ZLIB_INTERNAL gz_error(state, err, msg) return; } #if !defined(NO_snprintf) && !defined(NO_vsnprintf) - snprintf(state->msg, strlen(state->path) + strlen(msg) + 3, - "%s%s%s", state->path, ": ", msg); + (void)snprintf(state->msg, strlen(state->path) + strlen(msg) + 3, + "%s%s%s", state->path, ": ", msg); #else strcpy(state->msg, state->path); strcat(state->msg, ": "); strcat(state->msg, msg); #endif - return; } #ifndef INT_MAX diff --git a/3rdparty/zlib/1.2.8/gzread.c b/3rdparty/zlib/1.2.11/gzread.c similarity index 85% rename from 3rdparty/zlib/1.2.8/gzread.c rename to 3rdparty/zlib/1.2.11/gzread.c index bf4538eb27..956b91ea7d 100644 --- a/3rdparty/zlib/1.2.8/gzread.c +++ b/3rdparty/zlib/1.2.11/gzread.c @@ -1,5 +1,5 @@ /* gzread.c -- zlib functions for reading gzip files - * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013 Mark Adler + * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013, 2016 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -12,6 +12,7 @@ local int gz_look OF((gz_statep)); local int gz_decomp OF((gz_statep)); local int gz_fetch OF((gz_statep)); local int gz_skip OF((gz_statep, z_off64_t)); +local z_size_t gz_read OF((gz_statep, voidp, z_size_t)); /* Use read() to load a buffer -- return -1 on error, otherwise 0. Read from state->fd, and update state->eof, state->err, and state->msg as appropriate. @@ -24,13 +25,17 @@ local int gz_load(state, buf, len, have) unsigned *have; { int ret; + unsigned get, max = ((unsigned)-1 >> 2) + 1; *have = 0; do { - ret = read(state->fd, buf + *have, len - *have); + get = len - *have; + if (get > max) + get = max; + ret = read(state->fd, buf + *have, get); if (ret <= 0) break; - *have += ret; + *have += (unsigned)ret; } while (*have < len); if (ret < 0) { gz_error(state, Z_ERRNO, zstrerror()); @@ -94,10 +99,8 @@ local int gz_look(state) state->in = (unsigned char *)malloc(state->want); state->out = (unsigned char *)malloc(state->want << 1); if (state->in == NULL || state->out == NULL) { - if (state->out != NULL) - free(state->out); - if (state->in != NULL) - free(state->in); + free(state->out); + free(state->in); gz_error(state, Z_MEM_ERROR, "out of memory"); return -1; } @@ -284,33 +287,17 @@ local int gz_skip(state, len) return 0; } -/* -- see zlib.h -- */ -int ZEXPORT gzread(file, buf, len) - gzFile file; +/* Read len bytes into buf from file, or less than len up to the end of the + input. Return the number of bytes read. If zero is returned, either the + end of file was reached, or there was an error. state->err must be + consulted in that case to determine which. */ +local z_size_t gz_read(state, buf, len) + gz_statep state; voidp buf; - unsigned len; + z_size_t len; { - unsigned got, n; - gz_statep state; - z_streamp strm; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - strm = &(state->strm); - - /* 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_DATA_ERROR, "requested length does not fit in int"); - return -1; - } + z_size_t got; + unsigned n; /* if len is zero, avoid unnecessary operations */ if (len == 0) @@ -320,32 +307,38 @@ int ZEXPORT gzread(file, buf, len) if (state->seek) { state->seek = 0; if (gz_skip(state, state->skip) == -1) - return -1; + return 0; } /* get len bytes to buf, or less than len if at the end */ got = 0; do { + /* set n to the maximum amount of len that fits in an unsigned int */ + n = -1; + if (n > len) + n = len; + /* first just try copying data from the output buffer */ if (state->x.have) { - n = state->x.have > len ? len : state->x.have; + if (state->x.have < n) + n = 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 && state->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)) { + else if (state->how == LOOK || n < (state->size << 1)) { /* get more output, looking for header if required */ if (gz_fetch(state) == -1) - return -1; + return 0; continue; /* no progress yet -- go back to copy above */ /* the copy above assures that we will leave with space in the output buffer, allowing at least one gzungetc() to succeed */ @@ -353,16 +346,16 @@ int ZEXPORT gzread(file, buf, len) /* large len -- read directly into user buffer */ else if (state->how == COPY) { /* read directly */ - if (gz_load(state, (unsigned char *)buf, len, &n) == -1) - return -1; + if (gz_load(state, (unsigned char *)buf, n, &n) == -1) + return 0; } /* large len -- decompress directly into user buffer */ else { /* state->how == GZIP */ - strm->avail_out = len; - strm->next_out = (unsigned char *)buf; + state->strm.avail_out = n; + state->strm.next_out = (unsigned char *)buf; if (gz_decomp(state) == -1) - return -1; + return 0; n = state->x.have; state->x.have = 0; } @@ -374,8 +367,75 @@ int ZEXPORT gzread(file, buf, len) state->x.pos += n; } while (len); - /* return number of bytes read into user buffer (will fit in int) */ - return (int)got; + /* return number of bytes read into user buffer */ + return got; +} + +/* -- see zlib.h -- */ +int ZEXPORT gzread(file, buf, len) + gzFile file; + voidp buf; + unsigned len; +{ + gz_statep state; + + /* get internal structure */ + if (file == NULL) + return -1; + state = (gz_statep)file; + + /* 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 a flaw in the interface) */ + if ((int)len < 0) { + gz_error(state, Z_STREAM_ERROR, "request does not fit in an int"); + return -1; + } + + /* read len or fewer bytes to buf */ + len = gz_read(state, buf, len); + + /* check for an error */ + if (len == 0 && state->err != Z_OK && state->err != Z_BUF_ERROR) + return -1; + + /* return the number of bytes read (this is assured to fit in an int) */ + return (int)len; +} + +/* -- see zlib.h -- */ +z_size_t ZEXPORT gzfread(buf, size, nitems, file) + voidp buf; + z_size_t size; + z_size_t nitems; + gzFile file; +{ + z_size_t len; + gz_statep state; + + /* get internal structure */ + if (file == NULL) + return 0; + state = (gz_statep)file; + + /* 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 0; + + /* compute bytes to read -- error on overflow */ + len = nitems * size; + if (size && len / size != nitems) { + gz_error(state, Z_STREAM_ERROR, "request does not fit in a size_t"); + return 0; + } + + /* read len or fewer bytes to buf, return the number of full items read */ + return len ? gz_read(state, buf, len) / size : 0; } /* -- see zlib.h -- */ @@ -408,8 +468,8 @@ int ZEXPORT gzgetc(file) return *(state->x.next)++; } - /* nothing there -- try gzread() */ - ret = gzread(file, buf, 1); + /* nothing there -- try gz_read() */ + ret = gz_read(state, buf, 1); return ret < 1 ? -1 : buf[0]; } @@ -451,7 +511,7 @@ int ZEXPORT gzungetc(c, file) 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.next[0] = (unsigned char)c; state->x.pos--; state->past = 0; return c; @@ -473,7 +533,7 @@ int ZEXPORT gzungetc(c, file) } state->x.have++; state->x.next--; - state->x.next[0] = c; + state->x.next[0] = (unsigned char)c; state->x.pos--; state->past = 0; return c; diff --git a/3rdparty/zlib/1.2.8/gzwrite.c b/3rdparty/zlib/1.2.11/gzwrite.c similarity index 63% rename from 3rdparty/zlib/1.2.8/gzwrite.c rename to 3rdparty/zlib/1.2.11/gzwrite.c index aa767fbf63..c7b5651d70 100644 --- a/3rdparty/zlib/1.2.8/gzwrite.c +++ b/3rdparty/zlib/1.2.11/gzwrite.c @@ -1,5 +1,5 @@ /* gzwrite.c -- zlib functions for writing gzip files - * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013 Mark Adler + * Copyright (C) 2004-2017 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -9,17 +9,19 @@ local int gz_init OF((gz_statep)); local int gz_comp OF((gz_statep, int)); local int gz_zero OF((gz_statep, z_off64_t)); +local z_size_t gz_write OF((gz_statep, voidpc, z_size_t)); /* Initialize state for writing a gzip file. Mark initialization by setting - state->size to non-zero. Return -1 on failure or 0 on success. */ + state->size to non-zero. Return -1 on a memory allocation failure, or 0 on + success. */ local int gz_init(state) gz_statep state; { int ret; z_streamp strm = &(state->strm); - /* allocate input buffer */ - state->in = (unsigned char *)malloc(state->want); + /* allocate input buffer (double size for gzprintf) */ + state->in = (unsigned char *)malloc(state->want << 1); if (state->in == NULL) { gz_error(state, Z_MEM_ERROR, "out of memory"); return -1; @@ -47,6 +49,7 @@ local int gz_init(state) gz_error(state, Z_MEM_ERROR, "out of memory"); return -1; } + strm->next_in = NULL; } /* mark state as initialized */ @@ -62,17 +65,17 @@ local int gz_init(state) } /* 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. If gz->direct - is true, then simply write to the output file without compressing, and - ignore flush. */ + Return -1 if there is an error writing to the output file or if gz_init() + fails to allocate memory, 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. 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; { - int ret, got; - unsigned have; + int ret, writ; + unsigned have, put, max = ((unsigned)-1 >> 2) + 1; z_streamp strm = &(state->strm); /* allocate memory if this is the first time through */ @@ -81,12 +84,16 @@ local int gz_comp(state, flush) /* 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; + while (strm->avail_in) { + put = strm->avail_in > max ? max : strm->avail_in; + writ = write(state->fd, strm->next_in, put); + if (writ < 0) { + gz_error(state, Z_ERRNO, zstrerror()); + return -1; + } + strm->avail_in -= (unsigned)writ; + strm->next_in += writ; } - strm->avail_in = 0; return 0; } @@ -97,17 +104,21 @@ 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->x.next); - if (have && ((got = write(state->fd, state->x.next, have)) < 0 || - (unsigned)got != have)) { - gz_error(state, Z_ERRNO, zstrerror()); - return -1; + while (strm->next_out > state->x.next) { + put = strm->next_out - state->x.next > (int)max ? max : + (unsigned)(strm->next_out - state->x.next); + writ = write(state->fd, state->x.next, put); + if (writ < 0) { + gz_error(state, Z_ERRNO, zstrerror()); + return -1; + } + state->x.next += writ; } if (strm->avail_out == 0) { strm->avail_out = state->size; strm->next_out = state->out; + state->x.next = state->out; } - state->x.next = strm->next_out; } /* compress */ @@ -129,7 +140,8 @@ local int gz_comp(state, flush) return 0; } -/* Compress len zeros to output. Return -1 on error, 0 on success. */ +/* Compress len zeros to output. Return -1 on a write error or memory + allocation failure by gz_comp(), or 0 on success. */ local int gz_zero(state, len) gz_statep state; z_off64_t len; @@ -161,32 +173,14 @@ local int gz_zero(state, len) return 0; } -/* -- see zlib.h -- */ -int ZEXPORT gzwrite(file, buf, len) - gzFile file; +/* Write len bytes from buf to file. Return the number of bytes written. If + the returned value is less than len, then there was an error. */ +local z_size_t gz_write(state, buf, len) + gz_statep state; voidpc buf; - unsigned len; + z_size_t len; { - unsigned put = len; - gz_statep state; - z_streamp strm; - - /* get internal structure */ - if (file == NULL) - return 0; - state = (gz_statep)file; - strm = &(state->strm); - - /* check that we're writing and that there's no error */ - if (state->mode != GZ_WRITE || state->err != Z_OK) - return 0; - - /* 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_DATA_ERROR, "requested length does not fit in int"); - return 0; - } + z_size_t put = len; /* if len is zero, avoid unnecessary operations */ if (len == 0) @@ -209,14 +203,15 @@ int ZEXPORT gzwrite(file, buf, len) do { unsigned have, copy; - if (strm->avail_in == 0) - strm->next_in = state->in; - have = (unsigned)((strm->next_in + strm->avail_in) - state->in); + if (state->strm.avail_in == 0) + state->strm.next_in = state->in; + have = (unsigned)((state->strm.next_in + state->strm.avail_in) - + state->in); copy = state->size - have; if (copy > len) copy = len; memcpy(state->in + have, buf, copy); - strm->avail_in += copy; + state->strm.avail_in += copy; state->x.pos += copy; buf = (const char *)buf + copy; len -= copy; @@ -226,19 +221,83 @@ int ZEXPORT gzwrite(file, buf, len) } else { /* consume whatever's left in the input buffer */ - if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1) + if (state->strm.avail_in && gz_comp(state, Z_NO_FLUSH) == -1) return 0; /* directly compress user buffer to file */ - strm->avail_in = len; - strm->next_in = (z_const Bytef *)buf; - state->x.pos += len; - if (gz_comp(state, Z_NO_FLUSH) == -1) - return 0; + state->strm.next_in = (z_const Bytef *)buf; + do { + unsigned n = (unsigned)-1; + if (n > len) + n = len; + state->strm.avail_in = n; + state->x.pos += n; + if (gz_comp(state, Z_NO_FLUSH) == -1) + return 0; + len -= n; + } while (len); + } + + /* input was all buffered or compressed */ + return put; +} + +/* -- see zlib.h -- */ +int ZEXPORT gzwrite(file, buf, len) + gzFile file; + voidpc buf; + unsigned len; +{ + gz_statep state; + + /* get internal structure */ + if (file == NULL) + return 0; + state = (gz_statep)file; + + /* check that we're writing and that there's no error */ + if (state->mode != GZ_WRITE || state->err != Z_OK) + return 0; + + /* since an int is returned, make sure len fits in one, otherwise return + with an error (this avoids a flaw in the interface) */ + if ((int)len < 0) { + gz_error(state, Z_DATA_ERROR, "requested length does not fit in int"); + return 0; + } + + /* write len bytes from buf (the return value will fit in an int) */ + return (int)gz_write(state, buf, len); +} + +/* -- see zlib.h -- */ +z_size_t ZEXPORT gzfwrite(buf, size, nitems, file) + voidpc buf; + z_size_t size; + z_size_t nitems; + gzFile file; +{ + z_size_t len; + gz_statep state; + + /* get internal structure */ + if (file == NULL) + return 0; + state = (gz_statep)file; + + /* check that we're writing and that there's no error */ + if (state->mode != GZ_WRITE || state->err != Z_OK) + return 0; + + /* compute bytes to read -- error on overflow */ + len = nitems * size; + if (size && len / size != nitems) { + gz_error(state, Z_STREAM_ERROR, "request does not fit in a size_t"); + return 0; } - /* input was all buffered or compressed (put will fit in int) */ - return (int)put; + /* write len bytes to buf, return the number of full items written */ + return len ? gz_write(state, buf, len) / size : 0; } /* -- see zlib.h -- */ @@ -275,7 +334,7 @@ int ZEXPORT gzputc(file, c) strm->next_in = state->in; have = (unsigned)((strm->next_in + strm->avail_in) - state->in); if (have < state->size) { - state->in[have] = c; + state->in[have] = (unsigned char)c; strm->avail_in++; state->x.pos++; return c & 0xff; @@ -283,8 +342,8 @@ int ZEXPORT gzputc(file, c) } /* no room in buffer or not initialized, use gz_write() */ - buf[0] = c; - if (gzwrite(file, buf, 1) != 1) + buf[0] = (unsigned char)c; + if (gz_write(state, buf, 1) != 1) return -1; return c & 0xff; } @@ -295,11 +354,21 @@ int ZEXPORT gzputs(file, str) const char *str; { int ret; - unsigned len; + z_size_t len; + gz_statep state; + + /* get internal structure */ + if (file == NULL) + return -1; + state = (gz_statep)file; + + /* check that we're writing and that there's no error */ + if (state->mode != GZ_WRITE || state->err != Z_OK) + return -1; /* write string */ - len = (unsigned)strlen(str); - ret = gzwrite(file, str, len); + len = strlen(str); + ret = gz_write(state, str, len); return ret == 0 && len != 0 ? -1 : ret; } @@ -309,63 +378,73 @@ int ZEXPORT gzputs(file, str) /* -- see zlib.h -- */ int ZEXPORTVA gzvprintf(gzFile file, const char *format, va_list va) { - int size, len; + int len; + unsigned left; + char *next; gz_statep state; z_streamp strm; /* get internal structure */ if (file == NULL) - return -1; + return Z_STREAM_ERROR; state = (gz_statep)file; strm = &(state->strm); /* check that we're writing and that there's no error */ if (state->mode != GZ_WRITE || state->err != Z_OK) - return 0; + return Z_STREAM_ERROR; /* make sure we have some buffer space */ if (state->size == 0 && gz_init(state) == -1) - return 0; + return state->err; /* check for seek request */ if (state->seek) { state->seek = 0; if (gz_zero(state, state->skip) == -1) - return 0; + return state->err; } - /* consume whatever's left in the input buffer */ - if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1) - return 0; - - /* do the printf() into the input buffer, put length in len */ - size = (int)(state->size); - state->in[size - 1] = 0; + /* do the printf() into the input buffer, put length in len -- the input + buffer is double-sized just for this function, so there is guaranteed to + be state->size bytes available after the current contents */ + if (strm->avail_in == 0) + strm->next_in = state->in; + next = (char *)(state->in + (strm->next_in - state->in) + strm->avail_in); + next[state->size - 1] = 0; #ifdef NO_vsnprintf # ifdef HAS_vsprintf_void - (void)vsprintf((char *)(state->in), format, va); - for (len = 0; len < size; len++) - if (state->in[len] == 0) break; + (void)vsprintf(next, format, va); + for (len = 0; len < state->size; len++) + if (next[len] == 0) break; # else - len = vsprintf((char *)(state->in), format, va); + len = vsprintf(next, format, va); # endif #else # ifdef HAS_vsnprintf_void - (void)vsnprintf((char *)(state->in), size, format, va); - len = strlen((char *)(state->in)); + (void)vsnprintf(next, state->size, format, va); + len = strlen(next); # else - len = vsnprintf((char *)(state->in), size, format, va); + len = vsnprintf(next, state->size, format, va); # endif #endif /* check that printf() results fit in buffer */ - if (len <= 0 || len >= (int)size || state->in[size - 1] != 0) + if (len == 0 || (unsigned)len >= state->size || next[state->size - 1] != 0) return 0; - /* update buffer and position, defer compression until needed */ - strm->avail_in = (unsigned)len; - strm->next_in = state->in; + /* update buffer and position, compress first half if past that */ + strm->avail_in += (unsigned)len; state->x.pos += len; + if (strm->avail_in >= state->size) { + left = strm->avail_in - state->size; + strm->avail_in = state->size; + if (gz_comp(state, Z_NO_FLUSH) == -1) + return state->err; + memcpy(state->in, state->in + state->size, left); + strm->next_in = state->in; + strm->avail_in = left; + } return len; } @@ -390,73 +469,82 @@ int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20; { - int size, len; + unsigned len, left; + char *next; gz_statep state; z_streamp strm; /* get internal structure */ if (file == NULL) - return -1; + return Z_STREAM_ERROR; state = (gz_statep)file; strm = &(state->strm); /* check that can really pass pointer in ints */ if (sizeof(int) != sizeof(void *)) - return 0; + return Z_STREAM_ERROR; /* check that we're writing and that there's no error */ if (state->mode != GZ_WRITE || state->err != Z_OK) - return 0; + return Z_STREAM_ERROR; /* make sure we have some buffer space */ if (state->size == 0 && gz_init(state) == -1) - return 0; + return state->error; /* check for seek request */ if (state->seek) { state->seek = 0; if (gz_zero(state, state->skip) == -1) - return 0; + return state->error; } - /* consume whatever's left in the input buffer */ - if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1) - return 0; - - /* do the printf() into the input buffer, put length in len */ - size = (int)(state->size); - state->in[size - 1] = 0; + /* do the printf() into the input buffer, put length in len -- the input + buffer is double-sized just for this function, so there is guaranteed to + be state->size bytes available after the current contents */ + if (strm->avail_in == 0) + strm->next_in = state->in; + next = (char *)(strm->next_in + strm->avail_in); + next[state->size - 1] = 0; #ifdef NO_snprintf # ifdef HAS_sprintf_void - sprintf((char *)(state->in), format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); + sprintf(next, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, + a13, a14, a15, a16, a17, a18, a19, a20); for (len = 0; len < size; len++) - if (state->in[len] == 0) break; + if (next[len] == 0) + break; # else - len = sprintf((char *)(state->in), format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); + len = sprintf(next, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, + a12, a13, a14, a15, a16, a17, a18, a19, a20); # endif #else # ifdef HAS_snprintf_void - snprintf((char *)(state->in), size, format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); - len = strlen((char *)(state->in)); + snprintf(next, state->size, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, + a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); + len = strlen(next); # else - len = snprintf((char *)(state->in), size, format, a1, a2, a3, a4, a5, a6, - a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, - a19, a20); + len = snprintf(next, state->size, format, a1, a2, a3, a4, a5, a6, a7, a8, + a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); # endif #endif /* check that printf() results fit in buffer */ - if (len <= 0 || len >= (int)size || state->in[size - 1] != 0) + if (len == 0 || len >= state->size || next[state->size - 1] != 0) return 0; - /* update buffer and position, defer compression until needed */ - strm->avail_in = (unsigned)len; - strm->next_in = state->in; + /* update buffer and position, compress first half if past that */ + strm->avail_in += len; state->x.pos += len; - return len; + if (strm->avail_in >= state->size) { + left = strm->avail_in - state->size; + strm->avail_in = state->size; + if (gz_comp(state, Z_NO_FLUSH) == -1) + return state->err; + memcpy(state->in, state->in + state->size, left); + strm->next_in = state->in; + strm->avail_in = left; + } + return (int)len; } #endif @@ -470,7 +558,7 @@ int ZEXPORT gzflush(file, flush) /* get internal structure */ if (file == NULL) - return -1; + return Z_STREAM_ERROR; state = (gz_statep)file; /* check that we're writing and that there's no error */ @@ -485,11 +573,11 @@ int ZEXPORT gzflush(file, flush) if (state->seek) { state->seek = 0; if (gz_zero(state, state->skip) == -1) - return -1; + return state->err; } /* compress remaining data with requested flush */ - gz_comp(state, flush); + (void)gz_comp(state, flush); return state->err; } @@ -520,13 +608,13 @@ int ZEXPORT gzsetparams(file, level, strategy) if (state->seek) { state->seek = 0; if (gz_zero(state, state->skip) == -1) - return -1; + return state->err; } /* change compression parameters for subsequent input */ if (state->size) { /* flush previous input with previous parameters before changing */ - if (strm->avail_in && gz_comp(state, Z_PARTIAL_FLUSH) == -1) + if (strm->avail_in && gz_comp(state, Z_BLOCK) == -1) return state->err; deflateParams(strm, level, strategy); } diff --git a/3rdparty/zlib/1.2.8/infback.c b/3rdparty/zlib/1.2.11/infback.c similarity index 99% rename from 3rdparty/zlib/1.2.8/infback.c rename to 3rdparty/zlib/1.2.11/infback.c index f3833c2e43..59679ecbfc 100644 --- a/3rdparty/zlib/1.2.8/infback.c +++ b/3rdparty/zlib/1.2.11/infback.c @@ -1,5 +1,5 @@ /* infback.c -- inflate using a call-back interface - * Copyright (C) 1995-2011 Mark Adler + * Copyright (C) 1995-2016 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -61,7 +61,7 @@ int stream_size; Tracev((stderr, "inflate: allocated\n")); strm->state = (struct internal_state FAR *)state; state->dmax = 32768U; - state->wbits = windowBits; + state->wbits = (uInt)windowBits; state->wsize = 1U << windowBits; state->window = window; state->wnext = 0; diff --git a/3rdparty/zlib/1.2.8/inffast.c b/3rdparty/zlib/1.2.11/inffast.c similarity index 85% rename from 3rdparty/zlib/1.2.8/inffast.c rename to 3rdparty/zlib/1.2.11/inffast.c index bda59ceb6a..0dbd1dbc09 100644 --- a/3rdparty/zlib/1.2.8/inffast.c +++ b/3rdparty/zlib/1.2.11/inffast.c @@ -1,5 +1,5 @@ /* inffast.c -- fast decoding - * Copyright (C) 1995-2008, 2010, 2013 Mark Adler + * Copyright (C) 1995-2017 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -8,26 +8,9 @@ #include "inflate.h" #include "inffast.h" -#ifndef ASMINF - -/* Allow machine dependent optimization for post-increment or pre-increment. - Based on testing to date, - Pre-increment preferred for: - - PowerPC G3 (Adler) - - MIPS R5000 (Randers-Pehrson) - Post-increment preferred for: - - none - No measurable difference: - - Pentium III (Anderson) - - M68060 (Nikl) - */ -#ifdef POSTINC -# define OFF 0 -# define PUP(a) *(a)++ +#ifdef ASMINF +# pragma message("Assembler code may have bugs -- use at your own risk") #else -# define OFF 1 -# define PUP(a) *++(a) -#endif /* Decode literal, length, and distance codes and write out the resulting @@ -96,9 +79,9 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */ /* copy state to local variables */ state = (struct inflate_state FAR *)strm->state; - in = strm->next_in - OFF; + in = strm->next_in; last = in + (strm->avail_in - 5); - out = strm->next_out - OFF; + out = strm->next_out; beg = out - (start - strm->avail_out); end = out + (strm->avail_out - 257); #ifdef INFLATE_STRICT @@ -119,9 +102,9 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */ input data or output space */ do { if (bits < 15) { - hold += (unsigned long)(PUP(in)) << bits; + hold += (unsigned long)(*in++) << bits; bits += 8; - hold += (unsigned long)(PUP(in)) << bits; + hold += (unsigned long)(*in++) << bits; bits += 8; } here = lcode[hold & lmask]; @@ -134,14 +117,14 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */ Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ? "inflate: literal '%c'\n" : "inflate: literal 0x%02x\n", here.val)); - PUP(out) = (unsigned char)(here.val); + *out++ = (unsigned char)(here.val); } else if (op & 16) { /* length base */ len = (unsigned)(here.val); op &= 15; /* number of extra bits */ if (op) { if (bits < op) { - hold += (unsigned long)(PUP(in)) << bits; + hold += (unsigned long)(*in++) << bits; bits += 8; } len += (unsigned)hold & ((1U << op) - 1); @@ -150,9 +133,9 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */ } Tracevv((stderr, "inflate: length %u\n", len)); if (bits < 15) { - hold += (unsigned long)(PUP(in)) << bits; + hold += (unsigned long)(*in++) << bits; bits += 8; - hold += (unsigned long)(PUP(in)) << bits; + hold += (unsigned long)(*in++) << bits; bits += 8; } here = dcode[hold & dmask]; @@ -165,10 +148,10 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */ dist = (unsigned)(here.val); op &= 15; /* number of extra bits */ if (bits < op) { - hold += (unsigned long)(PUP(in)) << bits; + hold += (unsigned long)(*in++) << bits; bits += 8; if (bits < op) { - hold += (unsigned long)(PUP(in)) << bits; + hold += (unsigned long)(*in++) << bits; bits += 8; } } @@ -196,30 +179,30 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */ #ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR if (len <= op - whave) { do { - PUP(out) = 0; + *out++ = 0; } while (--len); continue; } len -= op - whave; do { - PUP(out) = 0; + *out++ = 0; } while (--op > whave); if (op == 0) { from = out - dist; do { - PUP(out) = PUP(from); + *out++ = *from++; } while (--len); continue; } #endif } - from = window - OFF; + from = window; if (wnext == 0) { /* very common case */ from += wsize - op; if (op < len) { /* some from window */ len -= op; do { - PUP(out) = PUP(from); + *out++ = *from++; } while (--op); from = out - dist; /* rest from output */ } @@ -230,14 +213,14 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */ if (op < len) { /* some from end of window */ len -= op; do { - PUP(out) = PUP(from); + *out++ = *from++; } while (--op); - from = window - OFF; + from = window; if (wnext < len) { /* some from start of window */ op = wnext; len -= op; do { - PUP(out) = PUP(from); + *out++ = *from++; } while (--op); from = out - dist; /* rest from output */ } @@ -248,35 +231,35 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */ if (op < len) { /* some from window */ len -= op; do { - PUP(out) = PUP(from); + *out++ = *from++; } while (--op); from = out - dist; /* rest from output */ } } while (len > 2) { - PUP(out) = PUP(from); - PUP(out) = PUP(from); - PUP(out) = PUP(from); + *out++ = *from++; + *out++ = *from++; + *out++ = *from++; len -= 3; } if (len) { - PUP(out) = PUP(from); + *out++ = *from++; if (len > 1) - PUP(out) = PUP(from); + *out++ = *from++; } } else { from = out - dist; /* copy direct from output */ do { /* minimum length is three */ - PUP(out) = PUP(from); - PUP(out) = PUP(from); - PUP(out) = PUP(from); + *out++ = *from++; + *out++ = *from++; + *out++ = *from++; len -= 3; } while (len > 2); if (len) { - PUP(out) = PUP(from); + *out++ = *from++; if (len > 1) - PUP(out) = PUP(from); + *out++ = *from++; } } } @@ -313,8 +296,8 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */ hold &= (1U << bits) - 1; /* update state and return */ - strm->next_in = in + OFF; - strm->next_out = out + OFF; + strm->next_in = in; + strm->next_out = out; strm->avail_in = (unsigned)(in < last ? 5 + (last - in) : 5 - (in - last)); strm->avail_out = (unsigned)(out < end ? 257 + (end - out) : 257 - (out - end)); diff --git a/3rdparty/zlib/1.2.8/inffast.h b/3rdparty/zlib/1.2.11/inffast.h similarity index 100% rename from 3rdparty/zlib/1.2.8/inffast.h rename to 3rdparty/zlib/1.2.11/inffast.h diff --git a/3rdparty/zlib/1.2.8/inffixed.h b/3rdparty/zlib/1.2.11/inffixed.h similarity index 100% rename from 3rdparty/zlib/1.2.8/inffixed.h rename to 3rdparty/zlib/1.2.11/inffixed.h diff --git a/3rdparty/zlib/1.2.8/inflate.c b/3rdparty/zlib/1.2.11/inflate.c similarity index 93% rename from 3rdparty/zlib/1.2.8/inflate.c rename to 3rdparty/zlib/1.2.11/inflate.c index 870f89bb4d..ac333e8c2e 100644 --- a/3rdparty/zlib/1.2.8/inflate.c +++ b/3rdparty/zlib/1.2.11/inflate.c @@ -1,5 +1,5 @@ /* inflate.c -- zlib decompression - * Copyright (C) 1995-2012 Mark Adler + * Copyright (C) 1995-2016 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -92,6 +92,7 @@ #endif /* function prototypes */ +local int inflateStateCheck OF((z_streamp strm)); local void fixedtables OF((struct inflate_state FAR *state)); local int updatewindow OF((z_streamp strm, const unsigned char FAR *end, unsigned copy)); @@ -101,12 +102,26 @@ local int updatewindow OF((z_streamp strm, const unsigned char FAR *end, local unsigned syncsearch OF((unsigned FAR *have, const unsigned char FAR *buf, unsigned len)); +local int inflateStateCheck(strm) +z_streamp strm; +{ + struct inflate_state FAR *state; + if (strm == Z_NULL || + strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0) + return 1; + state = (struct inflate_state FAR *)strm->state; + if (state == Z_NULL || state->strm != strm || + state->mode < HEAD || state->mode > SYNC) + return 1; + return 0; +} + int ZEXPORT inflateResetKeep(strm) z_streamp strm; { struct inflate_state FAR *state; - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + if (inflateStateCheck(strm)) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; strm->total_in = strm->total_out = state->total = 0; strm->msg = Z_NULL; @@ -131,7 +146,7 @@ z_streamp strm; { struct inflate_state FAR *state; - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + if (inflateStateCheck(strm)) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; state->wsize = 0; state->whave = 0; @@ -147,7 +162,7 @@ int windowBits; struct inflate_state FAR *state; /* get the state */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + if (inflateStateCheck(strm)) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; /* extract wrap request from windowBits parameter */ @@ -156,7 +171,7 @@ int windowBits; windowBits = -windowBits; } else { - wrap = (windowBits >> 4) + 1; + wrap = (windowBits >> 4) + 5; #ifdef GUNZIP if (windowBits < 48) windowBits &= 15; @@ -210,7 +225,9 @@ int stream_size; if (state == Z_NULL) return Z_MEM_ERROR; Tracev((stderr, "inflate: allocated\n")); strm->state = (struct internal_state FAR *)state; + state->strm = strm; state->window = Z_NULL; + state->mode = HEAD; /* to pass state test in inflateReset2() */ ret = inflateReset2(strm, windowBits); if (ret != Z_OK) { ZFREE(strm, state); @@ -234,17 +251,17 @@ int value; { struct inflate_state FAR *state; - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + if (inflateStateCheck(strm)) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; if (bits < 0) { state->hold = 0; state->bits = 0; return Z_OK; } - if (bits > 16 || state->bits + bits > 32) return Z_STREAM_ERROR; + if (bits > 16 || state->bits + (uInt)bits > 32) return Z_STREAM_ERROR; value &= (1L << bits) - 1; - state->hold += value << state->bits; - state->bits += bits; + state->hold += (unsigned)value << state->bits; + state->bits += (uInt)bits; return Z_OK; } @@ -625,7 +642,7 @@ int flush; static const unsigned short order[19] = /* permutation of code lengths */ {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; - if (strm == Z_NULL || strm->state == Z_NULL || strm->next_out == Z_NULL || + if (inflateStateCheck(strm) || strm->next_out == Z_NULL || (strm->next_in == Z_NULL && strm->avail_in != 0)) return Z_STREAM_ERROR; @@ -645,6 +662,8 @@ int flush; NEEDBITS(16); #ifdef GUNZIP if ((state->wrap & 2) && hold == 0x8b1f) { /* gzip header */ + if (state->wbits == 0) + state->wbits = 15; state->check = crc32(0L, Z_NULL, 0); CRC2(state->check, hold); INITBITS(); @@ -672,7 +691,7 @@ int flush; len = BITS(4) + 8; if (state->wbits == 0) state->wbits = len; - else if (len > state->wbits) { + if (len > 15 || len > state->wbits) { strm->msg = (char *)"invalid window size"; state->mode = BAD; break; @@ -699,14 +718,16 @@ int flush; } if (state->head != Z_NULL) state->head->text = (int)((hold >> 8) & 1); - if (state->flags & 0x0200) CRC2(state->check, hold); + if ((state->flags & 0x0200) && (state->wrap & 4)) + CRC2(state->check, hold); INITBITS(); state->mode = TIME; case TIME: NEEDBITS(32); if (state->head != Z_NULL) state->head->time = hold; - if (state->flags & 0x0200) CRC4(state->check, hold); + if ((state->flags & 0x0200) && (state->wrap & 4)) + CRC4(state->check, hold); INITBITS(); state->mode = OS; case OS: @@ -715,7 +736,8 @@ int flush; state->head->xflags = (int)(hold & 0xff); state->head->os = (int)(hold >> 8); } - if (state->flags & 0x0200) CRC2(state->check, hold); + if ((state->flags & 0x0200) && (state->wrap & 4)) + CRC2(state->check, hold); INITBITS(); state->mode = EXLEN; case EXLEN: @@ -724,7 +746,8 @@ int flush; state->length = (unsigned)(hold); if (state->head != Z_NULL) state->head->extra_len = (unsigned)hold; - if (state->flags & 0x0200) CRC2(state->check, hold); + if ((state->flags & 0x0200) && (state->wrap & 4)) + CRC2(state->check, hold); INITBITS(); } else if (state->head != Z_NULL) @@ -742,7 +765,7 @@ int flush; len + copy > state->head->extra_max ? state->head->extra_max - len : copy); } - if (state->flags & 0x0200) + if ((state->flags & 0x0200) && (state->wrap & 4)) state->check = crc32(state->check, next, copy); have -= copy; next += copy; @@ -761,9 +784,9 @@ int flush; if (state->head != Z_NULL && state->head->name != Z_NULL && state->length < state->head->name_max) - state->head->name[state->length++] = len; + state->head->name[state->length++] = (Bytef)len; } while (len && copy < have); - if (state->flags & 0x0200) + if ((state->flags & 0x0200) && (state->wrap & 4)) state->check = crc32(state->check, next, copy); have -= copy; next += copy; @@ -782,9 +805,9 @@ int flush; if (state->head != Z_NULL && state->head->comment != Z_NULL && state->length < state->head->comm_max) - state->head->comment[state->length++] = len; + state->head->comment[state->length++] = (Bytef)len; } while (len && copy < have); - if (state->flags & 0x0200) + if ((state->flags & 0x0200) && (state->wrap & 4)) state->check = crc32(state->check, next, copy); have -= copy; next += copy; @@ -796,7 +819,7 @@ int flush; case HCRC: if (state->flags & 0x0200) { NEEDBITS(16); - if (hold != (state->check & 0xffff)) { + if ((state->wrap & 4) && hold != (state->check & 0xffff)) { strm->msg = (char *)"header crc mismatch"; state->mode = BAD; break; @@ -1177,11 +1200,11 @@ int flush; out -= left; strm->total_out += out; state->total += out; - if (out) + if ((state->wrap & 4) && out) strm->adler = state->check = UPDATE(state->check, put - out, out); out = left; - if (( + if ((state->wrap & 4) && ( #ifdef GUNZIP state->flags ? hold : #endif @@ -1240,10 +1263,10 @@ int flush; strm->total_in += in; strm->total_out += out; state->total += out; - if (state->wrap && out) + if ((state->wrap & 4) && out) strm->adler = state->check = UPDATE(state->check, strm->next_out - out, out); - strm->data_type = state->bits + (state->last ? 64 : 0) + + strm->data_type = (int)state->bits + (state->last ? 64 : 0) + (state->mode == TYPE ? 128 : 0) + (state->mode == LEN_ || state->mode == COPY_ ? 256 : 0); if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK) @@ -1255,7 +1278,7 @@ int ZEXPORT inflateEnd(strm) z_streamp strm; { struct inflate_state FAR *state; - if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0) + if (inflateStateCheck(strm)) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; if (state->window != Z_NULL) ZFREE(strm, state->window); @@ -1273,7 +1296,7 @@ uInt *dictLength; struct inflate_state FAR *state; /* check state */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + if (inflateStateCheck(strm)) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; /* copy dictionary */ @@ -1298,7 +1321,7 @@ uInt dictLength; int ret; /* check state */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + if (inflateStateCheck(strm)) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; if (state->wrap != 0 && state->mode != DICT) return Z_STREAM_ERROR; @@ -1330,7 +1353,7 @@ gz_headerp head; struct inflate_state FAR *state; /* check state */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + if (inflateStateCheck(strm)) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; if ((state->wrap & 2) == 0) return Z_STREAM_ERROR; @@ -1383,7 +1406,7 @@ z_streamp strm; struct inflate_state FAR *state; /* check parameters */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + if (inflateStateCheck(strm)) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; if (strm->avail_in == 0 && state->bits < 8) return Z_BUF_ERROR; @@ -1430,7 +1453,7 @@ z_streamp strm; { struct inflate_state FAR *state; - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + if (inflateStateCheck(strm)) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; return state->mode == STORED && state->bits == 0; } @@ -1445,8 +1468,7 @@ z_streamp source; unsigned wsize; /* check input */ - if (dest == Z_NULL || source == Z_NULL || source->state == Z_NULL || - source->zalloc == (alloc_func)0 || source->zfree == (free_func)0) + if (inflateStateCheck(source) || dest == Z_NULL) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)source->state; @@ -1467,6 +1489,7 @@ z_streamp source; /* copy state */ zmemcpy((voidpf)dest, (voidpf)source, sizeof(z_stream)); zmemcpy((voidpf)copy, (voidpf)state, sizeof(struct inflate_state)); + copy->strm = dest; if (state->lencode >= state->codes && state->lencode <= state->codes + ENOUGH - 1) { copy->lencode = copy->codes + (state->lencode - state->codes); @@ -1488,25 +1511,51 @@ int subvert; { struct inflate_state FAR *state; - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + if (inflateStateCheck(strm)) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; - state->sane = !subvert; #ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR + state->sane = !subvert; return Z_OK; #else + (void)subvert; state->sane = 1; return Z_DATA_ERROR; #endif } +int ZEXPORT inflateValidate(strm, check) +z_streamp strm; +int check; +{ + struct inflate_state FAR *state; + + if (inflateStateCheck(strm)) return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + if (check) + state->wrap |= 4; + else + state->wrap &= ~4; + return Z_OK; +} + long ZEXPORT inflateMark(strm) z_streamp strm; { struct inflate_state FAR *state; - if (strm == Z_NULL || strm->state == Z_NULL) return -1L << 16; + if (inflateStateCheck(strm)) + return -(1L << 16); state = (struct inflate_state FAR *)strm->state; - return ((long)(state->back) << 16) + + return (long)(((unsigned long)((long)state->back)) << 16) + (state->mode == COPY ? state->length : (state->mode == MATCH ? state->was - state->length : 0)); } + +unsigned long ZEXPORT inflateCodesUsed(strm) +z_streamp strm; +{ + struct inflate_state FAR *state; + if (inflateStateCheck(strm)) return (unsigned long)-1; + state = (struct inflate_state FAR *)strm->state; + return (unsigned long)(state->next - state->codes); +} diff --git a/3rdparty/zlib/1.2.8/inflate.h b/3rdparty/zlib/1.2.11/inflate.h similarity index 94% rename from 3rdparty/zlib/1.2.8/inflate.h rename to 3rdparty/zlib/1.2.11/inflate.h index 95f4986d40..a46cce6b6d 100644 --- a/3rdparty/zlib/1.2.8/inflate.h +++ b/3rdparty/zlib/1.2.11/inflate.h @@ -1,5 +1,5 @@ /* inflate.h -- internal inflate state definition - * Copyright (C) 1995-2009 Mark Adler + * Copyright (C) 1995-2016 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -18,7 +18,7 @@ /* Possible inflate modes between inflate() calls */ typedef enum { - HEAD, /* i: waiting for magic header */ + HEAD = 16180, /* i: waiting for magic header */ FLAGS, /* i: waiting for method and flags (gzip) */ TIME, /* i: waiting for modification time (gzip) */ OS, /* i: waiting for extra flags and operating system (gzip) */ @@ -77,11 +77,14 @@ typedef enum { CHECK -> LENGTH -> DONE */ -/* state maintained between inflate() calls. Approximately 10K bytes. */ +/* State maintained between inflate() calls -- approximately 7K bytes, not + including the allocated sliding window, which is up to 32K bytes. */ struct inflate_state { + z_streamp strm; /* pointer back to this zlib stream */ inflate_mode mode; /* current inflate mode */ int last; /* true if processing last block */ - int wrap; /* bit 0 true for zlib, bit 1 true for gzip */ + int wrap; /* bit 0 true for zlib, bit 1 true for gzip, + bit 2 true to validate check value */ int havedict; /* true if dictionary provided */ int flags; /* gzip header method and flags (0 if zlib) */ unsigned dmax; /* zlib header max distance (INFLATE_STRICT) */ diff --git a/3rdparty/zlib/1.2.8/inftrees.c b/3rdparty/zlib/1.2.11/inftrees.c similarity index 95% rename from 3rdparty/zlib/1.2.8/inftrees.c rename to 3rdparty/zlib/1.2.11/inftrees.c index 44d89cf24e..2ea08fc13e 100644 --- a/3rdparty/zlib/1.2.8/inftrees.c +++ b/3rdparty/zlib/1.2.11/inftrees.c @@ -1,5 +1,5 @@ /* inftrees.c -- generate Huffman trees for efficient decoding - * Copyright (C) 1995-2013 Mark Adler + * Copyright (C) 1995-2017 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 1.2.8 Copyright 1995-2013 Mark Adler "; + " inflate 1.2.11 Copyright 1995-2017 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 @@ -54,7 +54,7 @@ unsigned short FAR *work; code FAR *next; /* next available space in table */ const unsigned short FAR *base; /* base value table to use */ const unsigned short FAR *extra; /* extra bits table to use */ - int end; /* use base and extra for symbol > end */ + unsigned match; /* use base and extra for symbol >= match */ unsigned short count[MAXBITS+1]; /* number of codes of each length */ unsigned short offs[MAXBITS+1]; /* offsets in table for each length */ static const unsigned short lbase[31] = { /* Length codes 257..285 base */ @@ -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, 72, 78}; + 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 77, 202}; 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, @@ -181,19 +181,17 @@ unsigned short FAR *work; switch (type) { case CODES: base = extra = work; /* dummy value--not used */ - end = 19; + match = 20; break; case LENS: base = lbase; - base -= 257; extra = lext; - extra -= 257; - end = 256; + match = 257; break; - default: /* DISTS */ + default: /* DISTS */ base = dbase; extra = dext; - end = -1; + match = 0; } /* initialize state for loop */ @@ -216,13 +214,13 @@ unsigned short FAR *work; for (;;) { /* create table entry */ here.bits = (unsigned char)(len - drop); - if ((int)(work[sym]) < end) { + if (work[sym] + 1U < match) { here.op = (unsigned char)0; here.val = work[sym]; } - else if ((int)(work[sym]) > end) { - here.op = (unsigned char)(extra[work[sym]]); - here.val = base[work[sym]]; + else if (work[sym] >= match) { + here.op = (unsigned char)(extra[work[sym] - match]); + here.val = base[work[sym] - match]; } else { here.op = (unsigned char)(32 + 64); /* end of block */ diff --git a/3rdparty/zlib/1.2.8/inftrees.h b/3rdparty/zlib/1.2.11/inftrees.h similarity index 100% rename from 3rdparty/zlib/1.2.8/inftrees.h rename to 3rdparty/zlib/1.2.11/inftrees.h diff --git a/3rdparty/zlib/1.2.8/treebuild.xml b/3rdparty/zlib/1.2.11/treebuild.xml similarity index 96% rename from 3rdparty/zlib/1.2.8/treebuild.xml rename to 3rdparty/zlib/1.2.11/treebuild.xml index 38d29d75ef..fd75525f99 100644 --- a/3rdparty/zlib/1.2.8/treebuild.xml +++ b/3rdparty/zlib/1.2.11/treebuild.xml @@ -1,6 +1,6 @@ - - + + zip compression library @@ -101,7 +101,7 @@