1 2 ChangeLog file for zlib 3 4 Changes in 1.2.5 (19 Apr 2010) 5 - Disable visibility attribute in win32/Makefile.gcc [Bar-Lev] 6 - Default to libdir as sharedlibdir in configure [Nieder] 7 - Update copyright dates on modified source files 8 - Update trees.c to be able to generate modified trees.h 9 - Exit configure for MinGW, suggesting win32/Makefile.gcc 10 11 Changes in 1.2.4.5 (18 Apr 2010) 12 - Set sharedlibdir in configure [Torok] 13 - Set LDFLAGS in Makefile.in [Bar-Lev] 14 - Avoid mkdir objs race condition in Makefile.in [Bowler] 15 - Add ZLIB_INTERNAL in front of internal inter-module functions and arrays 16 - Define ZLIB_INTERNAL to hide internal functions and arrays for GNU C 17 - Don't use hidden attribute when it is a warning generator (e.g. Solaris) 18 19 Changes in 1.2.4.4 (18 Apr 2010) 20 - Fix CROSS_PREFIX executable testing, CHOST extract, mingw* [Torok] 21 - Undefine _LARGEFILE64_SOURCE in zconf.h if it is zero, but not if empty 22 - Try to use bash or ksh regardless of functionality of /bin/sh 23 - Fix configure incompatibility with NetBSD sh 24 - Remove attempt to run under bash or ksh since have better NetBSD fix 25 - Fix win32/Makefile.gcc for MinGW [Bar-Lev] 26 - Add diagnostic messages when using CROSS_PREFIX in configure 27 - Added --sharedlibdir option to configure [Weigelt] 28 - Use hidden visibility attribute when available [Frysinger] 29 30 Changes in 1.2.4.3 (10 Apr 2010) 31 - Only use CROSS_PREFIX in configure for ar and ranlib if they exist 32 - Use CROSS_PREFIX for nm [Bar-Lev] 33 - Assume _LARGEFILE64_SOURCE defined is equivalent to true 34 - Avoid use of undefined symbols in #if with && and || 35 - Make *64 prototypes in gzguts.h consistent with functions 36 - Add -shared load option for MinGW in configure [Bowler] 37 - Move z_off64_t to public interface, use instead of off64_t 38 - Remove ! from shell test in configure (not portable to Solaris) 39 - Change +0 macro tests to -0 for possibly increased portability 40 41 Changes in 1.2.4.2 (9 Apr 2010) 42 - Add consistent carriage returns to readme.txt's in masmx86 and masmx64 43 - Really provide prototypes for *64 functions when building without LFS 44 - Only define unlink() in minigzip.c if unistd.h not included 45 - Update README to point to contrib/vstudio project files 46 - Move projects/vc6 to old/ and remove projects/ 47 - Include stdlib.h in minigzip.c for setmode() definition under WinCE 48 - Clean up assembler builds in win32/Makefile.msc [Rowe] 49 - Include sys/types.h for Microsoft for off_t definition 50 - Fix memory leak on error in gz_open() 51 - Symbolize nm as $NM in configure [Weigelt] 52 - Use TEST_LDSHARED instead of LDSHARED to link test programs [Weigelt] 53 - Add +0 to _FILE_OFFSET_BITS and _LFS64_LARGEFILE in case not defined 54 - Fix bug in gzeof() to take into account unused input data 55 - Avoid initialization of structures with variables in puff.c 56 - Updated win32/README-WIN32.txt [Rowe] 57 58 Changes in 1.2.4.1 (28 Mar 2010) 59 - Remove the use of [a-z] constructs for sed in configure [gentoo 310225] 60 - Remove $(SHAREDLIB) from LIBS in Makefile.in [Creech] 61 - Restore "for debugging" comment on sprintf() in gzlib.c 62 - Remove fdopen for MVS from gzguts.h 63 - Put new README-WIN32.txt in win32 [Rowe] 64 - Add check for shell to configure and invoke another shell if needed 65 - Fix big fat stinking bug in gzseek() on uncompressed files 66 - Remove vestigial F_OPEN64 define in zutil.h 67 - Set and check the value of _LARGEFILE_SOURCE and _LARGEFILE64_SOURCE 68 - Avoid errors on non-LFS systems when applications define LFS macros 69 - Set EXE to ".exe" in configure for MINGW [Kahle] 70 - Match crc32() in crc32.c exactly to the prototype in zlib.h [Sherrill] 71 - Add prefix for cross-compilation in win32/makefile.gcc [Bar-Lev] 72 - Add DLL install in win32/makefile.gcc [Bar-Lev] 73 - Allow Linux* or linux* from uname in configure [Bar-Lev] 74 - Allow ldconfig to be redefined in configure and Makefile.in [Bar-Lev] 75 - Add cross-compilation prefixes to configure [Bar-Lev] 76 - Match type exactly in gz_load() invocation in gzread.c 77 - Match type exactly of zcalloc() in zutil.c to zlib.h alloc_func 78 - Provide prototypes for *64 functions when building zlib without LFS 79 - Don't use -lc when linking shared library on MinGW 80 - Remove errno.h check in configure and vestigial errno code in zutil.h 81 82 Changes in 1.2.4 (14 Mar 2010) 83 - Fix VER3 extraction in configure for no fourth subversion 84 - Update zlib.3, add docs to Makefile.in to make .pdf out of it 85 - Add zlib.3.pdf to distribution 86 - Don't set error code in gzerror() if passed pointer is NULL 87 - Apply destination directory fixes to CMakeLists.txt [Lowman] 88 - Move #cmakedefine's to a new zconf.in.cmakein 89 - Restore zconf.h for builds that don't use configure or cmake 90 - Add distclean to dummy Makefile for convenience 91 - Update and improve INDEX, README, and FAQ 92 - Update CMakeLists.txt for the return of zconf.h [Lowman] 93 - Update contrib/vstudio/vc9 and vc10 [Vollant] 94 - Change libz.dll.a back to libzdll.a in win32/Makefile.gcc 95 - Apply license and readme changes to contrib/asm686 [Raiter] 96 - Check file name lengths and add -c option in minigzip.c [Li] 97 - Update contrib/amd64 and contrib/masmx86/ [Vollant] 98 - Avoid use of "eof" parameter in trees.c to not shadow library variable 99 - Update make_vms.com for removal of zlibdefs.h [Zinser] 100 - Update assembler code and vstudio projects in contrib [Vollant] 101 - Remove outdated assembler code contrib/masm686 and contrib/asm586 102 - Remove old vc7 and vc8 from contrib/vstudio 103 - Update win32/Makefile.msc, add ZLIB_VER_SUBREVISION [Rowe] 104 - Fix memory leaks in gzclose_r() and gzclose_w(), file leak in gz_open() 105 - Add contrib/gcc_gvmat64 for longest_match and inflate_fast [Vollant] 106 - Remove *64 functions from win32/zlib.def (they're not 64-bit yet) 107 - Fix bug in void-returning vsprintf() case in gzwrite.c 108 - Fix name change from inflate.h in contrib/inflate86/inffas86.c 109 - Check if temporary file exists before removing in make_vms.com [Zinser] 110 - Fix make install and uninstall for --static option 111 - Fix usage of _MSC_VER in gzguts.h and zutil.h [Truta] 112 - Update readme.txt in contrib/masmx64 and masmx86 to assemble 113 114 Changes in 1.2.3.9 (21 Feb 2010) 115 - Expunge gzio.c 116 - Move as400 build information to old 117 - Fix updates in contrib/minizip and contrib/vstudio 118 - Add const to vsnprintf test in configure to avoid warnings [Weigelt] 119 - Delete zconf.h (made by configure) [Weigelt] 120 - Change zconf.in.h to zconf.h.in per convention [Weigelt] 121 - Check for NULL buf in gzgets() 122 - Return empty string for gzgets() with len == 1 (like fgets()) 123 - Fix description of gzgets() in zlib.h for end-of-file, NULL return 124 - Update minizip to 1.1 [Vollant] 125 - Avoid MSVC loss of data warnings in gzread.c, gzwrite.c 126 - Note in zlib.h that gzerror() should be used to distinguish from EOF 127 - Remove use of snprintf() from gzlib.c 128 - Fix bug in gzseek() 129 - Update contrib/vstudio, adding vc9 and vc10 [Kuno, Vollant] 130 - Fix zconf.h generation in CMakeLists.txt [Lowman] 131 - Improve comments in zconf.h where modified by configure 132 133 Changes in 1.2.3.8 (13 Feb 2010) 134 - Clean up text files (tabs, trailing whitespace, etc.) [Oberhumer] 135 - Use z_off64_t in gz_zero() and gz_skip() to match state->skip 136 - Avoid comparison problem when sizeof(int) == sizeof(z_off64_t) 137 - Revert to Makefile.in from 1.2.3.6 (live with the clutter) 138 - Fix missing error return in gzflush(), add zlib.h note 139 - Add *64 functions to zlib.map [Levin] 140 - Fix signed/unsigned comparison in gz_comp() 141 - Use SFLAGS when testing shared linking in configure 142 - Add --64 option to ./configure to use -m64 with gcc 143 - Fix ./configure --help to correctly name options 144 - Have make fail if a test fails [Levin] 145 - Avoid buffer overrun in contrib/masmx64/gvmat64.asm [Simpson] 146 - Remove assembler object files from contrib 147 148 Changes in 1.2.3.7 (24 Jan 2010) 149 - Always gzopen() with O_LARGEFILE if available 150 - Fix gzdirect() to work immediately after gzopen() or gzdopen() 151 - Make gzdirect() more precise when the state changes while reading 152 - Improve zlib.h documentation in many places 153 - Catch memory allocation failure in gz_open() 154 - Complete close operation if seek forward in gzclose_w() fails 155 - Return Z_ERRNO from gzclose_r() if close() fails 156 - Return Z_STREAM_ERROR instead of EOF for gzclose() being passed NULL 157 - Return zero for gzwrite() errors to match zlib.h description 158 - Return -1 on gzputs() error to match zlib.h description 159 - Add zconf.in.h to allow recovery from configure modification [Weigelt] 160 - Fix static library permissions in Makefile.in [Weigelt] 161 - Avoid warnings in configure tests that hide functionality [Weigelt] 162 - Add *BSD and DragonFly to Linux case in configure [gentoo 123571] 163 - Change libzdll.a to libz.dll.a in win32/Makefile.gcc [gentoo 288212] 164 - Avoid access of uninitialized data for first inflateReset2 call [Gomes] 165 - Keep object files in subdirectories to reduce the clutter somewhat 166 - Remove default Makefile and zlibdefs.h, add dummy Makefile 167 - Add new external functions to Z_PREFIX, remove duplicates, z_z_ -> z_ 168 - Remove zlibdefs.h completely -- modify zconf.h instead 169 170 Changes in 1.2.3.6 (17 Jan 2010) 171 - Avoid void * arithmetic in gzread.c and gzwrite.c 172 - Make compilers happier with const char * for gz_error message 173 - Avoid unused parameter warning in inflate.c 174 - Avoid signed-unsigned comparison warning in inflate.c 175 - Indent #pragma's for traditional C 176 - Fix usage of strwinerror() in glib.c, change to gz_strwinerror() 177 - Correct email address in configure for system options 178 - Update make_vms.com and add make_vms.com to contrib/minizip [Zinser] 179 - Update zlib.map [Brown] 180 - Fix Makefile.in for Solaris 10 make of example64 and minizip64 [Torok] 181 - Apply various fixes to CMakeLists.txt [Lowman] 182 - Add checks on len in gzread() and gzwrite() 183 - Add error message for no more room for gzungetc() 184 - Remove zlib version check in gzwrite() 185 - Defer compression of gzprintf() result until need to 186 - Use snprintf() in gzdopen() if available 187 - Remove USE_MMAP configuration determination (only used by minigzip) 188 - Remove examples/pigz.c (available separately) 189 - Update examples/gun.c to 1.6 190 191 Changes in 1.2.3.5 (8 Jan 2010) 192 - Add space after #if in zutil.h for some compilers 193 - Fix relatively harmless bug in deflate_fast() [Exarevsky] 194 - Fix same problem in deflate_slow() 195 - Add $(SHAREDLIBV) to LIBS in Makefile.in [Brown] 196 - Add deflate_rle() for faster Z_RLE strategy run-length encoding 197 - Add deflate_huff() for faster Z_HUFFMAN_ONLY encoding 198 - Change name of "write" variable in inffast.c to avoid library collisions 199 - Fix premature EOF from gzread() in gzio.c [Brown] 200 - Use zlib header window size if windowBits is 0 in inflateInit2() 201 - Remove compressBound() call in deflate.c to avoid linking compress.o 202 - Replace use of errno in gz* with functions, support WinCE [Alves] 203 - Provide alternative to perror() in minigzip.c for WinCE [Alves] 204 - Don't use _vsnprintf on later versions of MSVC [Lowman] 205 - Add CMake build script and input file [Lowman] 206 - Update contrib/minizip to 1.1 [Svensson, Vollant] 207 - Moved nintendods directory from contrib to . 208 - Replace gzio.c with a new set of routines with the same functionality 209 - Add gzbuffer(), gzoffset(), gzclose_r(), gzclose_w() as part of above 210 - Update contrib/minizip to 1.1b 211 - Change gzeof() to return 0 on error instead of -1 to agree with zlib.h 212 213 Changes in 1.2.3.4 (21 Dec 2009) 214 - Use old school .SUFFIXES in Makefile.in for FreeBSD compatibility 215 - Update comments in configure and Makefile.in for default --shared 216 - Fix test -z's in configure [Marquess] 217 - Build examplesh and minigzipsh when not testing 218 - Change NULL's to Z_NULL's in deflate.c and in comments in zlib.h 219 - Import LDFLAGS from the environment in configure 220 - Fix configure to populate SFLAGS with discovered CFLAGS options 221 - Adapt make_vms.com to the new Makefile.in [Zinser] 222 - Add zlib2ansi script for C++ compilation [Marquess] 223 - Add _FILE_OFFSET_BITS=64 test to make test (when applicable) 224 - Add AMD64 assembler code for longest match to contrib [Teterin] 225 - Include options from $SFLAGS when doing $LDSHARED 226 - Simplify 64-bit file support by introducing z_off64_t type 227 - Make shared object files in objs directory to work around old Sun cc 228 - Use only three-part version number for Darwin shared compiles 229 - Add rc option to ar in Makefile.in for when ./configure not run 230 - Add -WI,-rpath,. to LDFLAGS for OSF 1 V4* 231 - Set LD_LIBRARYN32_PATH for SGI IRIX shared compile 232 - Protect against _FILE_OFFSET_BITS being defined when compiling zlib 233 - Rename Makefile.in targets allstatic to static and allshared to shared 234 - Fix static and shared Makefile.in targets to be independent 235 - Correct error return bug in gz_open() by setting state [Brown] 236 - Put spaces before ;;'s in configure for better sh compatibility 237 - Add pigz.c (parallel implementation of gzip) to examples/ 238 - Correct constant in crc32.c to UL [Leventhal] 239 - Reject negative lengths in crc32_combine() 240 - Add inflateReset2() function to work like inflateEnd()/inflateInit2() 241 - Include sys/types.h for _LARGEFILE64_SOURCE [Brown] 242 - Correct typo in doc/algorithm.txt [Janik] 243 - Fix bug in adler32_combine() [Zhu] 244 - Catch missing-end-of-block-code error in all inflates and in puff 245 Assures that random input to inflate eventually results in an error 246 - Added enough.c (calculation of ENOUGH for inftrees.h) to examples/ 247 - Update ENOUGH and its usage to reflect discovered bounds 248 - Fix gzerror() error report on empty input file [Brown] 249 - Add ush casts in trees.c to avoid pedantic runtime errors 250 - Fix typo in zlib.h uncompress() description [Reiss] 251 - Correct inflate() comments with regard to automatic header detection 252 - Remove deprecation comment on Z_PARTIAL_FLUSH (it stays) 253 - Put new version of gzlog (2.0) in examples with interruption recovery 254 - Add puff compile option to permit invalid distance-too-far streams 255 - Add puff TEST command options, ability to read piped input 256 - Prototype the *64 functions in zlib.h when _FILE_OFFSET_BITS == 64, but 257 _LARGEFILE64_SOURCE not defined 258 - Fix Z_FULL_FLUSH to truly erase the past by resetting s->strstart 259 - Fix deflateSetDictionary() to use all 32K for output consistency 260 - Remove extraneous #define MIN_LOOKAHEAD in deflate.c (in deflate.h) 261 - Clear bytes after deflate lookahead to avoid use of uninitialized data 262 - Change a limit in inftrees.c to be more transparent to Coverity Prevent 263 - Update win32/zlib.def with exported symbols from zlib.h 264 - Correct spelling error in zlib.h [Willem] 265 - Allow Z_BLOCK for deflate() to force a new block 266 - Allow negative bits in inflatePrime() to delete existing bit buffer 267 - Add Z_TREES flush option to inflate() to return at end of trees 268 - Add inflateMark() to return current state information for random access 269 - Add Makefile for NintendoDS to contrib [Costa] 270 - Add -w in configure compile tests to avoid spurious warnings [Beucler] 271 - Fix typos in zlib.h comments for deflateSetDictionary() 272 - Fix EOF detection in transparent gzread() [Maier] 273 274 Changes in 1.2.3.3 (2 October 2006) 275 - Make --shared the default for configure, add a --static option 276 - Add compile option to permit invalid distance-too-far streams 277 - Add inflateUndermine() function which is required to enable above 278 - Remove use of "this" variable name for C++ compatibility [Marquess] 279 - Add testing of shared library in make test, if shared library built 280 - Use ftello() and fseeko() if available instead of ftell() and fseek() 281 - Provide two versions of all functions that use the z_off_t type for 282 binary compatibility -- a normal version and a 64-bit offset version, 283 per the Large File Support Extension when _LARGEFILE64_SOURCE is 284 defined; use the 64-bit versions by default when _FILE_OFFSET_BITS 285 is defined to be 64 286 - Add a --uname= option to configure to perhaps help with cross-compiling 287 288 Changes in 1.2.3.2 (3 September 2006) 289 - Turn off silly Borland warnings [Hay] 290 - Use off64_t and define _LARGEFILE64_SOURCE when present 291 - Fix missing dependency on inffixed.h in Makefile.in 292 - Rig configure --shared to build both shared and static [Teredesai, Truta] 293 - Remove zconf.in.h and instead create a new zlibdefs.h file 294 - Fix contrib/minizip/unzip.c non-encrypted after encrypted [Vollant] 295 - Add treebuild.xml (see http://treebuild.metux.de/) [Weigelt] 296 297 Changes in 1.2.3.1 (16 August 2006) 298 - Add watcom directory with OpenWatcom make files [Daniel] 299 - Remove #undef of FAR in zconf.in.h for MVS [Fedtke] 300 - Update make_vms.com [Zinser] 301 - Use -fPIC for shared build in configure [Teredesai, Nicholson] 302 - Use only major version number for libz.so on IRIX and OSF1 [Reinholdtsen] 303 - Use fdopen() (not _fdopen()) for Interix in zutil.h [Bck] 304 - Add some FAQ entries about the contrib directory 305 - Update the MVS question in the FAQ 306 - Avoid extraneous reads after EOF in gzio.c [Brown] 307 - Correct spelling of "successfully" in gzio.c [Randers-Pehrson] 308 - Add comments to zlib.h about gzerror() usage [Brown] 309 - Set extra flags in gzip header in gzopen() like deflate() does 310 - Make configure options more compatible with double-dash conventions 311 [Weigelt] 312 - Clean up compilation under Solaris SunStudio cc [Rowe, Reinholdtsen] 313 - Fix uninstall target in Makefile.in [Truta] 314 - Add pkgconfig support [Weigelt] 315 - Use $(DESTDIR) macro in Makefile.in [Reinholdtsen, Weigelt] 316 - Replace set_data_type() with a more accurate detect_data_type() in 317 trees.c, according to the txtvsbin.txt document [Truta] 318 - Swap the order of #include <stdio.h> and #include "zlib.h" in 319 gzio.c, example.c and minigzip.c [Truta] 320 - Shut up annoying VS2005 warnings about standard C deprecation [Rowe, 321 Truta] (where?) 322 - Fix target "clean" from win32/Makefile.bor [Truta] 323 - Create .pdb and .manifest files in win32/makefile.msc [Ziegler, Rowe] 324 - Update zlib www home address in win32/DLL_FAQ.txt [Truta] 325 - Update contrib/masmx86/inffas32.asm for VS2005 [Vollant, Van Wassenhove] 326 - Enable browse info in the "Debug" and "ASM Debug" configurations in 327 the Visual C++ 6 project, and set (non-ASM) "Debug" as default [Truta] 328 - Add pkgconfig support [Weigelt] 329 - Add ZLIB_VER_MAJOR, ZLIB_VER_MINOR and ZLIB_VER_REVISION in zlib.h, 330 for use in win32/zlib1.rc [Polushin, Rowe, Truta] 331 - Add a document that explains the new text detection scheme to 332 doc/txtvsbin.txt [Truta] 333 - Add rfc1950.txt, rfc1951.txt and rfc1952.txt to doc/ [Truta] 334 - Move algorithm.txt into doc/ [Truta] 335 - Synchronize FAQ with website 336 - Fix compressBound(), was low for some pathological cases [Fearnley] 337 - Take into account wrapper variations in deflateBound() 338 - Set examples/zpipe.c input and output to binary mode for Windows 339 - Update examples/zlib_how.html with new zpipe.c (also web site) 340 - Fix some warnings in examples/gzlog.c and examples/zran.c (it seems 341 that gcc became pickier in 4.0) 342 - Add zlib.map for Linux: "All symbols from zlib-1.1.4 remain 343 un-versioned, the patch adds versioning only for symbols introduced in 344 zlib-1.2.0 or later. It also declares as local those symbols which are 345 not designed to be exported." [Levin] 346 - Update Z_PREFIX list in zconf.in.h, add --zprefix option to configure 347 - Do not initialize global static by default in trees.c, add a response 348 NO_INIT_GLOBAL_POINTERS to initialize them if needed [Marquess] 349 - Don't use strerror() in gzio.c under WinCE [Yakimov] 350 - Don't use errno.h in zutil.h under WinCE [Yakimov] 351 - Move arguments for AR to its usage to allow replacing ar [Marot] 352 - Add HAVE_VISIBILITY_PRAGMA in zconf.in.h for Mozilla [Randers-Pehrson] 353 - Improve inflateInit() and inflateInit2() documentation 354 - Fix structure size comment in inflate.h 355 - Change configure help option from --h* to --help [Santos] 356 357 Changes in 1.2.3 (18 July 2005) 358 - Apply security vulnerability fixes to contrib/infback9 as well 359 - Clean up some text files (carriage returns, trailing space) 360 - Update testzlib, vstudio, masmx64, and masmx86 in contrib [Vollant] 361 362 Changes in 1.2.2.4 (11 July 2005) 363 - Add inflatePrime() function for starting inflation at bit boundary 364 - Avoid some Visual C warnings in deflate.c 365 - Avoid more silly Visual C warnings in inflate.c and inftrees.c for 64-bit 366 compile 367 - Fix some spelling errors in comments [Betts] 368 - Correct inflateInit2() error return documentation in zlib.h 369 - Add zran.c example of compressed data random access to examples 370 directory, shows use of inflatePrime() 371 - Fix cast for assignments to strm->state in inflate.c and infback.c 372 - Fix zlibCompileFlags() in zutil.c to use 1L for long shifts [Oberhumer] 373 - Move declarations of gf2 functions to right place in crc32.c [Oberhumer] 374 - Add cast in trees.c t avoid a warning [Oberhumer] 375 - Avoid some warnings in fitblk.c, gun.c, gzjoin.c in examples [Oberhumer] 376 - Update make_vms.com [Zinser] 377 - Initialize state->write in inflateReset() since copied in inflate_fast() 378 - Be more strict on incomplete code sets in inflate_table() and increase 379 ENOUGH and MAXD -- this repairs a possible security vulnerability for 380 invalid inflate input. Thanks to Tavis Ormandy and Markus Oberhumer for 381 discovering the vulnerability and providing test cases. 382 - Add ia64 support to configure for HP-UX [Smith] 383 - Add error return to gzread() for format or i/o error [Levin] 384 - Use malloc.h for OS/2 [Necasek] 385 386 Changes in 1.2.2.3 (27 May 2005) 387 - Replace 1U constants in inflate.c and inftrees.c for 64-bit compile 388 - Typecast fread() return values in gzio.c [Vollant] 389 - Remove trailing space in minigzip.c outmode (VC++ can't deal with it) 390 - Fix crc check bug in gzread() after gzungetc() [Heiner] 391 - Add the deflateTune() function to adjust internal compression parameters 392 - Add a fast gzip decompressor, gun.c, to examples (use of inflateBack) 393 - Remove an incorrect assertion in examples/zpipe.c 394 - Add C++ wrapper in infback9.h [Donais] 395 - Fix bug in inflateCopy() when decoding fixed codes 396 - Note in zlib.h how much deflateSetDictionary() actually uses 397 - Remove USE_DICT_HEAD in deflate.c (would mess up inflate if used) 398 - Add _WIN32_WCE to define WIN32 in zconf.in.h [Spencer] 399 - Don't include stderr.h or errno.h for _WIN32_WCE in zutil.h [Spencer] 400 - Add gzdirect() function to indicate transparent reads 401 - Update contrib/minizip [Vollant] 402 - Fix compilation of deflate.c when both ASMV and FASTEST [Oberhumer] 403 - Add casts in crc32.c to avoid warnings [Oberhumer] 404 - Add contrib/masmx64 [Vollant] 405 - Update contrib/asm586, asm686, masmx86, testzlib, vstudio [Vollant] 406 407 Changes in 1.2.2.2 (30 December 2004) 408 - Replace structure assignments in deflate.c and inflate.c with zmemcpy to 409 avoid implicit memcpy calls (portability for no-library compilation) 410 - Increase sprintf() buffer size in gzdopen() to allow for large numbers 411 - Add INFLATE_STRICT to check distances against zlib header 412 - Improve WinCE errno handling and comments [Chang] 413 - Remove comment about no gzip header processing in FAQ 414 - Add Z_FIXED strategy option to deflateInit2() to force fixed trees 415 - Add updated make_vms.com [Coghlan], update README 416 - Create a new "examples" directory, move gzappend.c there, add zpipe.c, 417 fitblk.c, gzlog.[ch], gzjoin.c, and zlib_how.html. 418 - Add FAQ entry and comments in deflate.c on uninitialized memory access 419 - Add Solaris 9 make options in configure [Gilbert] 420 - Allow strerror() usage in gzio.c for STDC 421 - Fix DecompressBuf in contrib/delphi/ZLib.pas [ManChesTer] 422 - Update contrib/masmx86/inffas32.asm and gvmat32.asm [Vollant] 423 - Use z_off_t for adler32_combine() and crc32_combine() lengths 424 - Make adler32() much faster for small len 425 - Use OS_CODE in deflate() default gzip header 426 427 Changes in 1.2.2.1 (31 October 2004) 428 - Allow inflateSetDictionary() call for raw inflate 429 - Fix inflate header crc check bug for file names and comments 430 - Add deflateSetHeader() and gz_header structure for custom gzip headers 431 - Add inflateGetheader() to retrieve gzip headers 432 - Add crc32_combine() and adler32_combine() functions 433 - Add alloc_func, free_func, in_func, out_func to Z_PREFIX list 434 - Use zstreamp consistently in zlib.h (inflate_back functions) 435 - Remove GUNZIP condition from definition of inflate_mode in inflate.h 436 and in contrib/inflate86/inffast.S [Truta, Anderson] 437 - Add support for AMD64 in contrib/inflate86/inffas86.c [Anderson] 438 - Update projects/README.projects and projects/visualc6 [Truta] 439 - Update win32/DLL_FAQ.txt [Truta] 440 - Avoid warning under NO_GZCOMPRESS in gzio.c; fix typo [Truta] 441 - Deprecate Z_ASCII; use Z_TEXT instead [Truta] 442 - Use a new algorithm for setting strm->data_type in trees.c [Truta] 443 - Do not define an exit() prototype in zutil.c unless DEBUG defined 444 - Remove prototype of exit() from zutil.c, example.c, minigzip.c [Truta] 445 - Add comment in zlib.h for Z_NO_FLUSH parameter to deflate() 446 - Fix Darwin build version identification [Peterson] 447 448 Changes in 1.2.2 (3 October 2004) 449 - Update zlib.h comments on gzip in-memory processing 450 - Set adler to 1 in inflateReset() to support Java test suite [Walles] 451 - Add contrib/dotzlib [Ravn] 452 - Update win32/DLL_FAQ.txt [Truta] 453 - Update contrib/minizip [Vollant] 454 - Move contrib/visual-basic.txt to old/ [Truta] 455 - Fix assembler builds in projects/visualc6/ [Truta] 456 457 Changes in 1.2.1.2 (9 September 2004) 458 - Update INDEX file 459 - Fix trees.c to update strm->data_type (no one ever noticed!) 460 - Fix bug in error case in inflate.c, infback.c, and infback9.c [Brown] 461 - Add "volatile" to crc table flag declaration (for DYNAMIC_CRC_TABLE) 462 - Add limited multitasking protection to DYNAMIC_CRC_TABLE 463 - Add NO_vsnprintf for VMS in zutil.h [Mozilla] 464 - Don't declare strerror() under VMS [Mozilla] 465 - Add comment to DYNAMIC_CRC_TABLE to use get_crc_table() to initialize 466 - Update contrib/ada [Anisimkov] 467 - Update contrib/minizip [Vollant] 468 - Fix configure to not hardcode directories for Darwin [Peterson] 469 - Fix gzio.c to not return error on empty files [Brown] 470 - Fix indentation; update version in contrib/delphi/ZLib.pas and 471 contrib/pascal/zlibpas.pas [Truta] 472 - Update mkasm.bat in contrib/masmx86 [Truta] 473 - Update contrib/untgz [Truta] 474 - Add projects/README.projects [Truta] 475 - Add project for MS Visual C++ 6.0 in projects/visualc6 [Cadieux, Truta] 476 - Update win32/DLL_FAQ.txt [Truta] 477 - Update list of Z_PREFIX symbols in zconf.h [Randers-Pehrson, Truta] 478 - Remove an unnecessary assignment to curr in inftrees.c [Truta] 479 - Add OS/2 to exe builds in configure [Poltorak] 480 - Remove err dummy parameter in zlib.h [Kientzle] 481 482 Changes in 1.2.1.1 (9 January 2004) 483 - Update email address in README 484 - Several FAQ updates 485 - Fix a big fat bug in inftrees.c that prevented decoding valid 486 dynamic blocks with only literals and no distance codes -- 487 Thanks to "Hot Emu" for the bug report and sample file 488 - Add a note to puff.c on no distance codes case. 489 490 Changes in 1.2.1 (17 November 2003) 491 - Remove a tab in contrib/gzappend/gzappend.c 492 - Update some interfaces in contrib for new zlib functions 493 - Update zlib version number in some contrib entries 494 - Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta] 495 - Support shared libraries on Hurd and KFreeBSD [Brown] 496 - Fix error in NO_DIVIDE option of adler32.c 497 498 Changes in 1.2.0.8 (4 November 2003) 499 - Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas 500 - Add experimental NO_DIVIDE #define in adler32.c 501 - Possibly faster on some processors (let me know if it is) 502 - Correct Z_BLOCK to not return on first inflate call if no wrap 503 - Fix strm->data_type on inflate() return to correctly indicate EOB 504 - Add deflatePrime() function for appending in the middle of a byte 505 - Add contrib/gzappend for an example of appending to a stream 506 - Update win32/DLL_FAQ.txt [Truta] 507 - Delete Turbo C comment in README [Truta] 508 - Improve some indentation in zconf.h [Truta] 509 - Fix infinite loop on bad input in configure script [Church] 510 - Fix gzeof() for concatenated gzip files [Johnson] 511 - Add example to contrib/visual-basic.txt [Michael B.] 512 - Add -p to mkdir's in Makefile.in [vda] 513 - Fix configure to properly detect presence or lack of printf functions 514 - Add AS400 support [Monnerat] 515 - Add a little Cygwin support [Wilson] 516 517 Changes in 1.2.0.7 (21 September 2003) 518 - Correct some debug formats in contrib/infback9 519 - Cast a type in a debug statement in trees.c 520 - Change search and replace delimiter in configure from % to # [Beebe] 521 - Update contrib/untgz to 0.2 with various fixes [Truta] 522 - Add build support for Amiga [Nikl] 523 - Remove some directories in old that have been updated to 1.2 524 - Add dylib building for Mac OS X in configure and Makefile.in 525 - Remove old distribution stuff from Makefile 526 - Update README to point to DLL_FAQ.txt, and add comment on Mac OS X 527 - Update links in README 528 529 Changes in 1.2.0.6 (13 September 2003) 530 - Minor FAQ updates 531 - Update contrib/minizip to 1.00 [Vollant] 532 - Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta] 533 - Update POSTINC comment for 68060 [Nikl] 534 - Add contrib/infback9 with deflate64 decoding (unsupported) 535 - For MVS define NO_vsnprintf and undefine FAR [van Burik] 536 - Add pragma for fdopen on MVS [van Burik] 537 538 Changes in 1.2.0.5 (8 September 2003) 539 - Add OF to inflateBackEnd() declaration in zlib.h 540 - Remember start when using gzdopen in the middle of a file 541 - Use internal off_t counters in gz* functions to properly handle seeks 542 - Perform more rigorous check for distance-too-far in inffast.c 543 - Add Z_BLOCK flush option to return from inflate at block boundary 544 - Set strm->data_type on return from inflate 545 - Indicate bits unused, if at block boundary, and if in last block 546 - Replace size_t with ptrdiff_t in crc32.c, and check for correct size 547 - Add condition so old NO_DEFLATE define still works for compatibility 548 - FAQ update regarding the Windows DLL [Truta] 549 - INDEX update: add qnx entry, remove aix entry [Truta] 550 - Install zlib.3 into mandir [Wilson] 551 - Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta] 552 - Adapt the zlib interface to the new DLL convention guidelines [Truta] 553 - Introduce ZLIB_WINAPI macro to allow the export of functions using 554 the WINAPI calling convention, for Visual Basic [Vollant, Truta] 555 - Update msdos and win32 scripts and makefiles [Truta] 556 - Export symbols by name, not by ordinal, in win32/zlib.def [Truta] 557 - Add contrib/ada [Anisimkov] 558 - Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta] 559 - Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant] 560 - Add contrib/masm686 [Truta] 561 - Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm 562 [Truta, Vollant] 563 - Update contrib/delphi; rename to contrib/pascal; add example [Truta] 564 - Remove contrib/delphi2; add a new contrib/delphi [Truta] 565 - Avoid inclusion of the nonstandard <memory.h> in contrib/iostream, 566 and fix some method prototypes [Truta] 567 - Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip 568 [Truta] 569 - Avoid the use of backslash (\) in contrib/minizip [Vollant] 570 - Fix file time handling in contrib/untgz; update makefiles [Truta] 571 - Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines 572 [Vollant] 573 - Remove contrib/vstudio/vc15_16 [Vollant] 574 - Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta] 575 - Update README.contrib [Truta] 576 - Invert the assignment order of match_head and s->prev[...] in 577 INSERT_STRING [Truta] 578 - Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings 579 [Truta] 580 - Compare function pointers with 0, not with NULL or Z_NULL [Truta] 581 - Fix prototype of syncsearch in inflate.c [Truta] 582 - Introduce ASMINF macro to be enabled when using an ASM implementation 583 of inflate_fast [Truta] 584 - Change NO_DEFLATE to NO_GZCOMPRESS [Truta] 585 - Modify test_gzio in example.c to take a single file name as a 586 parameter [Truta] 587 - Exit the example.c program if gzopen fails [Truta] 588 - Add type casts around strlen in example.c [Truta] 589 - Remove casting to sizeof in minigzip.c; give a proper type 590 to the variable compared with SUFFIX_LEN [Truta] 591 - Update definitions of STDC and STDC99 in zconf.h [Truta] 592 - Synchronize zconf.h with the new Windows DLL interface [Truta] 593 - Use SYS16BIT instead of __32BIT__ to distinguish between 594 16- and 32-bit platforms [Truta] 595 - Use far memory allocators in small 16-bit memory models for 596 Turbo C [Truta] 597 - Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in 598 zlibCompileFlags [Truta] 599 - Cygwin has vsnprintf [Wilson] 600 - In Windows16, OS_CODE is 0, as in MSDOS [Truta] 601 - In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson] 602 603 Changes in 1.2.0.4 (10 August 2003) 604 - Minor FAQ updates 605 - Be more strict when checking inflateInit2's windowBits parameter 606 - Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well 607 - Add gzip wrapper option to deflateInit2 using windowBits 608 - Add updated QNX rule in configure and qnx directory [Bonnefoy] 609 - Make inflate distance-too-far checks more rigorous 610 - Clean up FAR usage in inflate 611 - Add casting to sizeof() in gzio.c and minigzip.c 612 613 Changes in 1.2.0.3 (19 July 2003) 614 - Fix silly error in gzungetc() implementation [Vollant] 615 - Update contrib/minizip and contrib/vstudio [Vollant] 616 - Fix printf format in example.c 617 - Correct cdecl support in zconf.in.h [Anisimkov] 618 - Minor FAQ updates 619 620 Changes in 1.2.0.2 (13 July 2003) 621 - Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons 622 - Attempt to avoid warnings in crc32.c for pointer-int conversion 623 - Add AIX to configure, remove aix directory [Bakker] 624 - Add some casts to minigzip.c 625 - Improve checking after insecure sprintf() or vsprintf() calls 626 - Remove #elif's from crc32.c 627 - Change leave label to inf_leave in inflate.c and infback.c to avoid 628 library conflicts 629 - Remove inflate gzip decoding by default--only enable gzip decoding by 630 special request for stricter backward compatibility 631 - Add zlibCompileFlags() function to return compilation information 632 - More typecasting in deflate.c to avoid warnings 633 - Remove leading underscore from _Capital #defines [Truta] 634 - Fix configure to link shared library when testing 635 - Add some Windows CE target adjustments [Mai] 636 - Remove #define ZLIB_DLL in zconf.h [Vollant] 637 - Add zlib.3 [Rodgers] 638 - Update RFC URL in deflate.c and algorithm.txt [Mai] 639 - Add zlib_dll_FAQ.txt to contrib [Truta] 640 - Add UL to some constants [Truta] 641 - Update minizip and vstudio [Vollant] 642 - Remove vestigial NEED_DUMMY_RETURN from zconf.in.h 643 - Expand use of NO_DUMMY_DECL to avoid all dummy structures 644 - Added iostream3 to contrib [Schwardt] 645 - Replace rewind() with fseek() for WinCE [Truta] 646 - Improve setting of zlib format compression level flags 647 - Report 0 for huffman and rle strategies and for level == 0 or 1 648 - Report 2 only for level == 6 649 - Only deal with 64K limit when necessary at compile time [Truta] 650 - Allow TOO_FAR check to be turned off at compile time [Truta] 651 - Add gzclearerr() function [Souza] 652 - Add gzungetc() function 653 654 Changes in 1.2.0.1 (17 March 2003) 655 - Add Z_RLE strategy for run-length encoding [Truta] 656 - When Z_RLE requested, restrict matches to distance one 657 - Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE 658 - Correct FASTEST compilation to allow level == 0 659 - Clean up what gets compiled for FASTEST 660 - Incorporate changes to zconf.in.h [Vollant] 661 - Refine detection of Turbo C need for dummy returns 662 - Refine ZLIB_DLL compilation 663 - Include additional header file on VMS for off_t typedef 664 - Try to use _vsnprintf where it supplants vsprintf [Vollant] 665 - Add some casts in inffast.c 666 - Enchance comments in zlib.h on what happens if gzprintf() tries to 667 write more than 4095 bytes before compression 668 - Remove unused state from inflateBackEnd() 669 - Remove exit(0) from minigzip.c, example.c 670 - Get rid of all those darn tabs 671 - Add "check" target to Makefile.in that does the same thing as "test" 672 - Add "mostlyclean" and "maintainer-clean" targets to Makefile.in 673 - Update contrib/inflate86 [Anderson] 674 - Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant] 675 - Add msdos and win32 directories with makefiles [Truta] 676 - More additions and improvements to the FAQ 677 678 Changes in 1.2.0 (9 March 2003) 679 - New and improved inflate code 680 - About 20% faster 681 - Does not allocate 32K window unless and until needed 682 - Automatically detects and decompresses gzip streams 683 - Raw inflate no longer needs an extra dummy byte at end 684 - Added inflateBack functions using a callback interface--even faster 685 than inflate, useful for file utilities (gzip, zip) 686 - Added inflateCopy() function to record state for random access on 687 externally generated deflate streams (e.g. in gzip files) 688 - More readable code (I hope) 689 - New and improved crc32() 690 - About 50% faster, thanks to suggestions from Rodney Brown 691 - Add deflateBound() and compressBound() functions 692 - Fix memory leak in deflateInit2() 693 - Permit setting dictionary for raw deflate (for parallel deflate) 694 - Fix const declaration for gzwrite() 695 - Check for some malloc() failures in gzio.c 696 - Fix bug in gzopen() on single-byte file 0x1f 697 - Fix bug in gzread() on concatenated file with 0x1f at end of buffer 698 and next buffer doesn't start with 0x8b 699 - Fix uncompress() to return Z_DATA_ERROR on truncated input 700 - Free memory at end of example.c 701 - Remove MAX #define in trees.c (conflicted with some libraries) 702 - Fix static const's in deflate.c, gzio.c, and zutil.[ch] 703 - Declare malloc() and free() in gzio.c if STDC not defined 704 - Use malloc() instead of calloc() in zutil.c if int big enough 705 - Define STDC for AIX 706 - Add aix/ with approach for compiling shared library on AIX 707 - Add HP-UX support for shared libraries in configure 708 - Add OpenUNIX support for shared libraries in configure 709 - Use $cc instead of gcc to build shared library 710 - Make prefix directory if needed when installing 711 - Correct Macintosh avoidance of typedef Byte in zconf.h 712 - Correct Turbo C memory allocation when under Linux 713 - Use libz.a instead of -lz in Makefile (assure use of compiled library) 714 - Update configure to check for snprintf or vsnprintf functions and their 715 return value, warn during make if using an insecure function 716 - Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that 717 is lost when library is used--resolution is to build new zconf.h 718 - Documentation improvements (in zlib.h): 719 - Document raw deflate and inflate 720 - Update RFCs URL 721 - Point out that zlib and gzip formats are different 722 - Note that Z_BUF_ERROR is not fatal 723 - Document string limit for gzprintf() and possible buffer overflow 724 - Note requirement on avail_out when flushing 725 - Note permitted values of flush parameter of inflate() 726 - Add some FAQs (and even answers) to the FAQ 727 - Add contrib/inflate86/ for x86 faster inflate 728 - Add contrib/blast/ for PKWare Data Compression Library decompression 729 - Add contrib/puff/ simple inflate for deflate format description 730 731 Changes in 1.1.4 (11 March 2002) 732 - ZFREE was repeated on same allocation on some error conditions. 733 This creates a security problem described in 734 http://www.zlib.org/advisory-2002-03-11.txt 735 - Returned incorrect error (Z_MEM_ERROR) on some invalid data 736 - Avoid accesses before window for invalid distances with inflate window 737 less than 32K. 738 - force windowBits > 8 to avoid a bug in the encoder for a window size 739 of 256 bytes. (A complete fix will be available in 1.1.5). 740 741 Changes in 1.1.3 (9 July 1998) 742 - fix "an inflate input buffer bug that shows up on rare but persistent 743 occasions" (Mark) 744 - fix gzread and gztell for concatenated .gz files (Didier Le Botlan) 745 - fix gzseek(..., SEEK_SET) in write mode 746 - fix crc check after a gzeek (Frank Faubert) 747 - fix miniunzip when the last entry in a zip file is itself a zip file 748 (J Lillge) 749 - add contrib/asm586 and contrib/asm686 (Brian Raiter) 750 See http://www.muppetlabs.com/~breadbox/software/assembly.html 751 - add support for Delphi 3 in contrib/delphi (Bob Dellaca) 752 - add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti) 753 - do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren) 754 - use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks) 755 - added a FAQ file 756 757 - Support gzdopen on Mac with Metrowerks (Jason Linhart) 758 - Do not redefine Byte on Mac (Brad Pettit & Jason Linhart) 759 - define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young) 760 - avoid some warnings with Borland C (Tom Tanner) 761 - fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant) 762 - emulate utime() for WIN32 in contrib/untgz (Gilles Vollant) 763 - allow several arguments to configure (Tim Mooney, Frodo Looijaard) 764 - use libdir and includedir in Makefile.in (Tim Mooney) 765 - support shared libraries on OSF1 V4 (Tim Mooney) 766 - remove so_locations in "make clean" (Tim Mooney) 767 - fix maketree.c compilation error (Glenn, Mark) 768 - Python interface to zlib now in Python 1.5 (Jeremy Hylton) 769 - new Makefile.riscos (Rich Walker) 770 - initialize static descriptors in trees.c for embedded targets (Nick Smith) 771 - use "foo-gz" in example.c for RISCOS and VMS (Nick Smith) 772 - add the OS/2 files in Makefile.in too (Andrew Zabolotny) 773 - fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane) 774 - fix maketree.c to allow clean compilation of inffixed.h (Mark) 775 - fix parameter check in deflateCopy (Gunther Nikl) 776 - cleanup trees.c, use compressed_len only in debug mode (Christian Spieler) 777 - Many portability patches by Christian Spieler: 778 . zutil.c, zutil.h: added "const" for zmem* 779 . Make_vms.com: fixed some typos 780 . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists 781 . msdos/Makefile.msc: remove "default rtl link library" info from obj files 782 . msdos/Makefile.*: use model-dependent name for the built zlib library 783 . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc: 784 new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT) 785 - use define instead of typedef for Bytef also for MSC small/medium (Tom Lane) 786 - replace __far with _far for better portability (Christian Spieler, Tom Lane) 787 - fix test for errno.h in configure (Tim Newsham) 788 789 Changes in 1.1.2 (19 March 98) 790 - added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant) 791 See http://www.winimage.com/zLibDll/unzip.html 792 - preinitialize the inflate tables for fixed codes, to make the code 793 completely thread safe (Mark) 794 - some simplifications and slight speed-up to the inflate code (Mark) 795 - fix gzeof on non-compressed files (Allan Schrum) 796 - add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs) 797 - use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn) 798 - added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny) 799 - add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori) 800 - do not wrap extern "C" around system includes (Tom Lane) 801 - mention zlib binding for TCL in README (Andreas Kupries) 802 - added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert) 803 - allow "make install prefix=..." even after configure (Glenn Randers-Pehrson) 804 - allow "configure --prefix $HOME" (Tim Mooney) 805 - remove warnings in example.c and gzio.c (Glenn Randers-Pehrson) 806 - move Makefile.sas to amiga/Makefile.sas 807 808 Changes in 1.1.1 (27 Feb 98) 809 - fix macros _tr_tally_* in deflate.h for debug mode (Glenn Randers-Pehrson) 810 - remove block truncation heuristic which had very marginal effect for zlib 811 (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the 812 compression ratio on some files. This also allows inlining _tr_tally for 813 matches in deflate_slow. 814 - added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier) 815 816 Changes in 1.1.0 (24 Feb 98) 817 - do not return STREAM_END prematurely in inflate (John Bowler) 818 - revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler) 819 - compile with -DFASTEST to get compression code optimized for speed only 820 - in minigzip, try mmap'ing the input file first (Miguel Albrecht) 821 - increase size of I/O buffers in minigzip.c and gzio.c (not a big gain 822 on Sun but significant on HP) 823 824 - add a pointer to experimental unzip library in README (Gilles Vollant) 825 - initialize variable gcc in configure (Chris Herborth) 826 827 Changes in 1.0.9 (17 Feb 1998) 828 - added gzputs and gzgets functions 829 - do not clear eof flag in gzseek (Mark Diekhans) 830 - fix gzseek for files in transparent mode (Mark Diekhans) 831 - do not assume that vsprintf returns the number of bytes written (Jens Krinke) 832 - replace EXPORT with ZEXPORT to avoid conflict with other programs 833 - added compress2 in zconf.h, zlib.def, zlib.dnt 834 - new asm code from Gilles Vollant in contrib/asm386 835 - simplify the inflate code (Mark): 836 . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new() 837 . ZALLOC the length list in inflate_trees_fixed() instead of using stack 838 . ZALLOC the value area for huft_build() instead of using stack 839 . Simplify Z_FINISH check in inflate() 840 841 - Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8 842 - in inftrees.c, avoid cc -O bug on HP (Farshid Elahi) 843 - in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with 844 the declaration of FAR (Gilles VOllant) 845 - install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann) 846 - read_buf buf parameter of type Bytef* instead of charf* 847 - zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout) 848 - do not redeclare unlink in minigzip.c for WIN32 (John Bowler) 849 - fix check for presence of directories in "make install" (Ian Willis) 850 851 Changes in 1.0.8 (27 Jan 1998) 852 - fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant) 853 - fix gzgetc and gzputc for big endian systems (Markus Oberhumer) 854 - added compress2() to allow setting the compression level 855 - include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong) 856 - use constant arrays for the static trees in trees.c instead of computing 857 them at run time (thanks to Ken Raeburn for this suggestion). To create 858 trees.h, compile with GEN_TREES_H and run "make test". 859 - check return code of example in "make test" and display result 860 - pass minigzip command line options to file_compress 861 - simplifying code of inflateSync to avoid gcc 2.8 bug 862 863 - support CC="gcc -Wall" in configure -s (QingLong) 864 - avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn) 865 - fix test for shared library support to avoid compiler warnings 866 - zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant) 867 - check for TARGET_OS_MAC in addition to MACOS (Brad Pettit) 868 - do not use fdopen for Metrowerks on Mac (Brad Pettit)) 869 - add checks for gzputc and gzputc in example.c 870 - avoid warnings in gzio.c and deflate.c (Andreas Kleinert) 871 - use const for the CRC table (Ken Raeburn) 872 - fixed "make uninstall" for shared libraries 873 - use Tracev instead of Trace in infblock.c 874 - in example.c use correct compressed length for test_sync 875 - suppress +vnocompatwarnings in configure for HPUX (not always supported) 876 877 Changes in 1.0.7 (20 Jan 1998) 878 - fix gzseek which was broken in write mode 879 - return error for gzseek to negative absolute position 880 - fix configure for Linux (Chun-Chung Chen) 881 - increase stack space for MSC (Tim Wegner) 882 - get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant) 883 - define EXPORTVA for gzprintf (Gilles Vollant) 884 - added man page zlib.3 (Rick Rodgers) 885 - for contrib/untgz, fix makedir() and improve Makefile 886 887 - check gzseek in write mode in example.c 888 - allocate extra buffer for seeks only if gzseek is actually called 889 - avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant) 890 - add inflateSyncPoint in zconf.h 891 - fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def 892 893 Changes in 1.0.6 (19 Jan 1998) 894 - add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and 895 gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code) 896 - Fix a deflate bug occurring only with compression level 0 (thanks to 897 Andy Buckler for finding this one). 898 - In minigzip, pass transparently also the first byte for .Z files. 899 - return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress() 900 - check Z_FINISH in inflate (thanks to Marc Schluper) 901 - Implement deflateCopy (thanks to Adam Costello) 902 - make static libraries by default in configure, add --shared option. 903 - move MSDOS or Windows specific files to directory msdos 904 - suppress the notion of partial flush to simplify the interface 905 (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4) 906 - suppress history buffer provided by application to simplify the interface 907 (this feature was not implemented anyway in 1.0.4) 908 - next_in and avail_in must be initialized before calling inflateInit or 909 inflateInit2 910 - add EXPORT in all exported functions (for Windows DLL) 911 - added Makefile.nt (thanks to Stephen Williams) 912 - added the unsupported "contrib" directory: 913 contrib/asm386/ by Gilles Vollant <info (a] winimage.com> 914 386 asm code replacing longest_match(). 915 contrib/iostream/ by Kevin Ruland <kevin (a] rodin.wustl.edu> 916 A C++ I/O streams interface to the zlib gz* functions 917 contrib/iostream2/ by Tyge Lvset <Tyge.Lovset (a] cmr.no> 918 Another C++ I/O streams interface 919 contrib/untgz/ by "Pedro A. Aranda Guti\irrez" <paag (a] tid.es> 920 A very simple tar.gz file extractor using zlib 921 contrib/visual-basic.txt by Carlos Rios <c_rios (a] sonda.cl> 922 How to use compress(), uncompress() and the gz* functions from VB. 923 - pass params -f (filtered data), -h (huffman only), -1 to -9 (compression 924 level) in minigzip (thanks to Tom Lane) 925 926 - use const for rommable constants in deflate 927 - added test for gzseek and gztell in example.c 928 - add undocumented function inflateSyncPoint() (hack for Paul Mackerras) 929 - add undocumented function zError to convert error code to string 930 (for Tim Smithers) 931 - Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code. 932 - Use default memcpy for Symantec MSDOS compiler. 933 - Add EXPORT keyword for check_func (needed for Windows DLL) 934 - add current directory to LD_LIBRARY_PATH for "make test" 935 - create also a link for libz.so.1 936 - added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura) 937 - use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX) 938 - added -soname for Linux in configure (Chun-Chung Chen, 939 - assign numbers to the exported functions in zlib.def (for Windows DLL) 940 - add advice in zlib.h for best usage of deflateSetDictionary 941 - work around compiler bug on Atari (cast Z_NULL in call of s->checkfn) 942 - allow compilation with ANSI keywords only enabled for TurboC in large model 943 - avoid "versionString"[0] (Borland bug) 944 - add NEED_DUMMY_RETURN for Borland 945 - use variable z_verbose for tracing in debug mode (L. Peter Deutsch). 946 - allow compilation with CC 947 - defined STDC for OS/2 (David Charlap) 948 - limit external names to 8 chars for MVS (Thomas Lund) 949 - in minigzip.c, use static buffers only for 16-bit systems 950 - fix suffix check for "minigzip -d foo.gz" 951 - do not return an error for the 2nd of two consecutive gzflush() (Felix Lee) 952 - use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau) 953 - added makelcc.bat for lcc-win32 (Tom St Denis) 954 - in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe) 955 - Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion. 956 - check for unistd.h in configure (for off_t) 957 - remove useless check parameter in inflate_blocks_free 958 - avoid useless assignment of s->check to itself in inflate_blocks_new 959 - do not flush twice in gzclose (thanks to Ken Raeburn) 960 - rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h 961 - use NO_ERRNO_H instead of enumeration of operating systems with errno.h 962 - work around buggy fclose on pipes for HP/UX 963 - support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson) 964 - fix configure if CC is already equal to gcc 965 966 Changes in 1.0.5 (3 Jan 98) 967 - Fix inflate to terminate gracefully when fed corrupted or invalid data 968 - Use const for rommable constants in inflate 969 - Eliminate memory leaks on error conditions in inflate 970 - Removed some vestigial code in inflate 971 - Update web address in README 972 973 Changes in 1.0.4 (24 Jul 96) 974 - In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF 975 bit, so the decompressor could decompress all the correct data but went 976 on to attempt decompressing extra garbage data. This affected minigzip too. 977 - zlibVersion and gzerror return const char* (needed for DLL) 978 - port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno) 979 - use z_error only for DEBUG (avoid problem with DLLs) 980 981 Changes in 1.0.3 (2 Jul 96) 982 - use z_streamp instead of z_stream *, which is now a far pointer in MSDOS 983 small and medium models; this makes the library incompatible with previous 984 versions for these models. (No effect in large model or on other systems.) 985 - return OK instead of BUF_ERROR if previous deflate call returned with 986 avail_out as zero but there is nothing to do 987 - added memcmp for non STDC compilers 988 - define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly) 989 - define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO) 990 - better check for 16-bit mode MSC (avoids problem with Symantec) 991 992 Changes in 1.0.2 (23 May 96) 993 - added Windows DLL support 994 - added a function zlibVersion (for the DLL support) 995 - fixed declarations using Bytef in infutil.c (pb with MSDOS medium model) 996 - Bytef is define's instead of typedef'd only for Borland C 997 - avoid reading uninitialized memory in example.c 998 - mention in README that the zlib format is now RFC1950 999 - updated Makefile.dj2 1000 - added algorithm.doc 1001 1002 Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion] 1003 - fix array overlay in deflate.c which sometimes caused bad compressed data 1004 - fix inflate bug with empty stored block 1005 - fix MSDOS medium model which was broken in 0.99 1006 - fix deflateParams() which could generated bad compressed data. 1007 - Bytef is define'd instead of typedef'ed (work around Borland bug) 1008 - added an INDEX file 1009 - new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32), 1010 Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas) 1011 - speed up adler32 for modern machines without auto-increment 1012 - added -ansi for IRIX in configure 1013 - static_init_done in trees.c is an int 1014 - define unlink as delete for VMS 1015 - fix configure for QNX 1016 - add configure branch for SCO and HPUX 1017 - avoid many warnings (unused variables, dead assignments, etc...) 1018 - no fdopen for BeOS 1019 - fix the Watcom fix for 32 bit mode (define FAR as empty) 1020 - removed redefinition of Byte for MKWERKS 1021 - work around an MWKERKS bug (incorrect merge of all .h files) 1022 1023 Changes in 0.99 (27 Jan 96) 1024 - allow preset dictionary shared between compressor and decompressor 1025 - allow compression level 0 (no compression) 1026 - add deflateParams in zlib.h: allow dynamic change of compression level 1027 and compression strategy. 1028 - test large buffers and deflateParams in example.c 1029 - add optional "configure" to build zlib as a shared library 1030 - suppress Makefile.qnx, use configure instead 1031 - fixed deflate for 64-bit systems (detected on Cray) 1032 - fixed inflate_blocks for 64-bit systems (detected on Alpha) 1033 - declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2) 1034 - always return Z_BUF_ERROR when deflate() has nothing to do 1035 - deflateInit and inflateInit are now macros to allow version checking 1036 - prefix all global functions and types with z_ with -DZ_PREFIX 1037 - make falloc completely reentrant (inftrees.c) 1038 - fixed very unlikely race condition in ct_static_init 1039 - free in reverse order of allocation to help memory manager 1040 - use zlib-1.0/* instead of zlib/* inside the tar.gz 1041 - make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith 1042 -Wconversion -Wstrict-prototypes -Wmissing-prototypes" 1043 - allow gzread on concatenated .gz files 1044 - deflateEnd now returns Z_DATA_ERROR if it was premature 1045 - deflate is finally (?) fully deterministic (no matches beyond end of input) 1046 - Document Z_SYNC_FLUSH 1047 - add uninstall in Makefile 1048 - Check for __cpluplus in zlib.h 1049 - Better test in ct_align for partial flush 1050 - avoid harmless warnings for Borland C++ 1051 - initialize hash_head in deflate.c 1052 - avoid warning on fdopen (gzio.c) for HP cc -Aa 1053 - include stdlib.h for STDC compilers 1054 - include errno.h for Cray 1055 - ignore error if ranlib doesn't exist 1056 - call ranlib twice for NeXTSTEP 1057 - use exec_prefix instead of prefix for libz.a 1058 - renamed ct_* as _tr_* to avoid conflict with applications 1059 - clear z->msg in inflateInit2 before any error return 1060 - initialize opaque in example.c, gzio.c, deflate.c and inflate.c 1061 - fixed typo in zconf.h (_GNUC__ => __GNUC__) 1062 - check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode) 1063 - fix typo in Make_vms.com (f$trnlnm -> f$getsyi) 1064 - in fcalloc, normalize pointer if size > 65520 bytes 1065 - don't use special fcalloc for 32 bit Borland C++ 1066 - use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc... 1067 - use Z_BINARY instead of BINARY 1068 - document that gzclose after gzdopen will close the file 1069 - allow "a" as mode in gzopen. 1070 - fix error checking in gzread 1071 - allow skipping .gz extra-field on pipes 1072 - added reference to Perl interface in README 1073 - put the crc table in FAR data (I dislike more and more the medium model :) 1074 - added get_crc_table 1075 - added a dimension to all arrays (Borland C can't count). 1076 - workaround Borland C bug in declaration of inflate_codes_new & inflate_fast 1077 - guard against multiple inclusion of *.h (for precompiled header on Mac) 1078 - Watcom C pretends to be Microsoft C small model even in 32 bit mode. 1079 - don't use unsized arrays to avoid silly warnings by Visual C++: 1080 warning C4746: 'inflate_mask' : unsized array treated as '__far' 1081 (what's wrong with far data in far model?). 1082 - define enum out of inflate_blocks_state to allow compilation with C++ 1083 1084 Changes in 0.95 (16 Aug 95) 1085 - fix MSDOS small and medium model (now easier to adapt to any compiler) 1086 - inlined send_bits 1087 - fix the final (:-) bug for deflate with flush (output was correct but 1088 not completely flushed in rare occasions). 1089 - default window size is same for compression and decompression 1090 (it's now sufficient to set MAX_WBITS in zconf.h). 1091 - voidp -> voidpf and voidnp -> voidp (for consistency with other 1092 typedefs and because voidnp was not near in large model). 1093 1094 Changes in 0.94 (13 Aug 95) 1095 - support MSDOS medium model 1096 - fix deflate with flush (could sometimes generate bad output) 1097 - fix deflateReset (zlib header was incorrectly suppressed) 1098 - added support for VMS 1099 - allow a compression level in gzopen() 1100 - gzflush now calls fflush 1101 - For deflate with flush, flush even if no more input is provided. 1102 - rename libgz.a as libz.a 1103 - avoid complex expression in infcodes.c triggering Turbo C bug 1104 - work around a problem with gcc on Alpha (in INSERT_STRING) 1105 - don't use inline functions (problem with some gcc versions) 1106 - allow renaming of Byte, uInt, etc... with #define. 1107 - avoid warning about (unused) pointer before start of array in deflate.c 1108 - avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c 1109 - avoid reserved word 'new' in trees.c 1110 1111 Changes in 0.93 (25 June 95) 1112 - temporarily disable inline functions 1113 - make deflate deterministic 1114 - give enough lookahead for PARTIAL_FLUSH 1115 - Set binary mode for stdin/stdout in minigzip.c for OS/2 1116 - don't even use signed char in inflate (not portable enough) 1117 - fix inflate memory leak for segmented architectures 1118 1119 Changes in 0.92 (3 May 95) 1120 - don't assume that char is signed (problem on SGI) 1121 - Clear bit buffer when starting a stored block 1122 - no memcpy on Pyramid 1123 - suppressed inftest.c 1124 - optimized fill_window, put longest_match inline for gcc 1125 - optimized inflate on stored blocks. 1126 - untabify all sources to simplify patches 1127 1128 Changes in 0.91 (2 May 95) 1129 - Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h 1130 - Document the memory requirements in zconf.h 1131 - added "make install" 1132 - fix sync search logic in inflateSync 1133 - deflate(Z_FULL_FLUSH) now works even if output buffer too short 1134 - after inflateSync, don't scare people with just "lo world" 1135 - added support for DJGPP 1136 1137 Changes in 0.9 (1 May 95) 1138 - don't assume that zalloc clears the allocated memory (the TurboC bug 1139 was Mark's bug after all :) 1140 - let again gzread copy uncompressed data unchanged (was working in 0.71) 1141 - deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented 1142 - added a test of inflateSync in example.c 1143 - moved MAX_WBITS to zconf.h because users might want to change that. 1144 - document explicitly that zalloc(64K) on MSDOS must return a normalized 1145 pointer (zero offset) 1146 - added Makefiles for Microsoft C, Turbo C, Borland C++ 1147 - faster crc32() 1148 1149 Changes in 0.8 (29 April 95) 1150 - added fast inflate (inffast.c) 1151 - deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this 1152 is incompatible with previous versions of zlib which returned Z_OK. 1153 - work around a TurboC compiler bug (bad code for b << 0, see infutil.h) 1154 (actually that was not a compiler bug, see 0.81 above) 1155 - gzread no longer reads one extra byte in certain cases 1156 - In gzio destroy(), don't reference a freed structure 1157 - avoid many warnings for MSDOS 1158 - avoid the ERROR symbol which is used by MS Windows 1159 1160 Changes in 0.71 (14 April 95) 1161 - Fixed more MSDOS compilation problems :( There is still a bug with 1162 TurboC large model. 1163 1164 Changes in 0.7 (14 April 95) 1165 - Added full inflate support. 1166 - Simplified the crc32() interface. The pre- and post-conditioning 1167 (one's complement) is now done inside crc32(). WARNING: this is 1168 incompatible with previous versions; see zlib.h for the new usage. 1169 1170 Changes in 0.61 (12 April 95) 1171 - workaround for a bug in TurboC. example and minigzip now work on MSDOS. 1172 1173 Changes in 0.6 (11 April 95) 1174 - added minigzip.c 1175 - added gzdopen to reopen a file descriptor as gzFile 1176 - added transparent reading of non-gziped files in gzread. 1177 - fixed bug in gzread (don't read crc as data) 1178 - fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose). 1179 - don't allocate big arrays in the stack (for MSDOS) 1180 - fix some MSDOS compilation problems 1181 1182 Changes in 0.5: 1183 - do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but 1184 not yet Z_FULL_FLUSH. 1185 - support decompression but only in a single step (forced Z_FINISH) 1186 - added opaque object for zalloc and zfree. 1187 - added deflateReset and inflateReset 1188 - added a variable zlib_version for consistency checking. 1189 - renamed the 'filter' parameter of deflateInit2 as 'strategy'. 1190 Added Z_FILTERED and Z_HUFFMAN_ONLY constants. 1191 1192 Changes in 0.4: 1193 - avoid "zip" everywhere, use zlib instead of ziplib. 1194 - suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush 1195 if compression method == 8. 1196 - added adler32 and crc32 1197 - renamed deflateOptions as deflateInit2, call one or the other but not both 1198 - added the method parameter for deflateInit2. 1199 - added inflateInit2 1200 - simplied considerably deflateInit and inflateInit by not supporting 1201 user-provided history buffer. This is supported only in deflateInit2 1202 and inflateInit2. 1203 1204 Changes in 0.3: 1205 - prefix all macro names with Z_ 1206 - use Z_FINISH instead of deflateEnd to finish compression. 1207 - added Z_HUFFMAN_ONLY 1208 - added gzerror() 1209
