ChangeLog revision 206708
1132718Skan 2169689Skan ChangeLog file for zlib 3117395Skan 4132718SkanChanges in 1.2.4.3 (10 Apr 2010) 5117395Skan- Only use CROSS_PREFIX in configure for ar and ranlib if they exist 6132718Skan- Use CROSS_PREFIX for nm [Bar-Lev] 7117395Skan- Assume _LARGEFILE64_SOURCE defined is equivalent to true 8117395Skan- Avoid use of undefined symbols in #if with && and || 9117395Skan- Make *64 prototypes in gzguts.h consistent with functions 10117395Skan- Add -shared load option for MinGW in configure [Bowler] 11132718Skan- Move z_off64_t to public interface, use instead of off64_t 12117395Skan- Remove ! from shell test in configure (not portable to Solaris) 13117395Skan- Change +0 macro tests to -0 for possibly increased portability 14117395Skan 15117395SkanChanges in 1.2.4.2 (9 Apr 2010) 16117395Skan- Add consistent carriage returns to readme.txt's in masmx86 and masmx64 17132718Skan- Really provide prototypes for *64 functions when building without LFS 18169689Skan- Only define unlink() in minigzip.c if unistd.h not included 19169689Skan- Update README to point to contrib/vstudio project files 20117395Skan- Move projects/vc6 to old/ and remove projects/ 21169689Skan- Include stdlib.h in minigzip.c for setmode() definition under WinCE 22132718Skan- Clean up assembler builds in win32/Makefile.msc [Rowe] 23169689Skan- Include sys/types.h for Microsoft for off_t definition 24132718Skan- Fix memory leak on error in gz_open() 25169689Skan- Symbolize nm as $NM in configure [Weigelt] 26169689Skan- Use TEST_LDSHARED instead of LDSHARED to link test programs [Weigelt] 27132718Skan- Add +0 to _FILE_OFFSET_BITS and _LFS64_LARGEFILE in case not defined 28169689Skan- Fix bug in gzeof() to take into account unused input data 29169689Skan- Avoid initialization of structures with variables in puff.c 30132718Skan- Updated win32/README-WIN32.txt [Rowe] 31132718Skan 32146895SkanChanges in 1.2.4.1 (28 Mar 2010) 33146895Skan- Remove the use of [a-z] constructs for sed in configure [gentoo 310225] 34132718Skan- Remove $(SHAREDLIB) from LIBS in Makefile.in [Creech] 35132718Skan- Restore "for debugging" comment on sprintf() in gzlib.c 36132718Skan- Remove fdopen for MVS from gzguts.h 37132718Skan- Put new README-WIN32.txt in win32 [Rowe] 38117395Skan- Add check for shell to configure and invoke another shell if needed 39117395Skan- Fix big fat stinking bug in gzseek() on uncompressed files 40117395Skan- Remove vestigial F_OPEN64 define in zutil.h 41117395Skan- Set and check the value of _LARGEFILE_SOURCE and _LARGEFILE64_SOURCE 42117395Skan- Avoid errors on non-LFS systems when applications define LFS macros 43117395Skan- Set EXE to ".exe" in configure for MINGW [Kahle] 44117395Skan- Match crc32() in crc32.c exactly to the prototype in zlib.h [Sherrill] 45117395Skan- Add prefix for cross-compilation in win32/makefile.gcc [Bar-Lev] 46117395Skan- Add DLL install in win32/makefile.gcc [Bar-Lev] 47132718Skan- Allow Linux* or linux* from uname in configure [Bar-Lev] 48117395Skan- Allow ldconfig to be redefined in configure and Makefile.in [Bar-Lev] 49117395Skan- Add cross-compilation prefixes to configure [Bar-Lev] 50117395Skan- Match type exactly in gz_load() invocation in gzread.c 51132718Skan- Match type exactly of zcalloc() in zutil.c to zlib.h alloc_func 52117395Skan- Provide prototypes for *64 functions when building zlib without LFS 53117395Skan- Don't use -lc when linking shared library on MinGW 54117395Skan- Remove errno.h check in configure and vestigial errno code in zutil.h 55117395Skan 56117395SkanChanges in 1.2.4 (14 Mar 2010) 57117395Skan- Fix VER3 extraction in configure for no fourth subversion 58132718Skan- Update zlib.3, add docs to Makefile.in to make .pdf out of it 59132718Skan- Add zlib.3.pdf to distribution 60132718Skan- Don't set error code in gzerror() if passed pointer is NULL 61132718Skan- Apply destination directory fixes to CMakeLists.txt [Lowman] 62132718Skan- Move #cmakedefine's to a new zconf.in.cmakein 63132718Skan- Restore zconf.h for builds that don't use configure or cmake 64169689Skan- Add distclean to dummy Makefile for convenience 65169689Skan- Update and improve INDEX, README, and FAQ 66169689Skan- Update CMakeLists.txt for the return of zconf.h [Lowman] 67169689Skan- Update contrib/vstudio/vc9 and vc10 [Vollant] 68169689Skan- Change libz.dll.a back to libzdll.a in win32/Makefile.gcc 69169689Skan- Apply license and readme changes to contrib/asm686 [Raiter] 70169689Skan- Check file name lengths and add -c option in minigzip.c [Li] 71169689Skan- Update contrib/amd64 and contrib/masmx86/ [Vollant] 72169689Skan- Avoid use of "eof" parameter in trees.c to not shadow library variable 73169689Skan- Update make_vms.com for removal of zlibdefs.h [Zinser] 74169689Skan- Update assembler code and vstudio projects in contrib [Vollant] 75169689Skan- Remove outdated assembler code contrib/masm686 and contrib/asm586 76169689Skan- Remove old vc7 and vc8 from contrib/vstudio 77169689Skan- Update win32/Makefile.msc, add ZLIB_VER_SUBREVISION [Rowe] 78169689Skan- Fix memory leaks in gzclose_r() and gzclose_w(), file leak in gz_open() 79169689Skan- Add contrib/gcc_gvmat64 for longest_match and inflate_fast [Vollant] 80- Remove *64 functions from win32/zlib.def (they're not 64-bit yet) 81- Fix bug in void-returning vsprintf() case in gzwrite.c 82- Fix name change from inflate.h in contrib/inflate86/inffas86.c 83- Check if temporary file exists before removing in make_vms.com [Zinser] 84- Fix make install and uninstall for --static option 85- Fix usage of _MSC_VER in gzguts.h and zutil.h [Truta] 86- Update readme.txt in contrib/masmx64 and masmx86 to assemble 87 88Changes in 1.2.3.9 (21 Feb 2010) 89- Expunge gzio.c 90- Move as400 build information to old 91- Fix updates in contrib/minizip and contrib/vstudio 92- Add const to vsnprintf test in configure to avoid warnings [Weigelt] 93- Delete zconf.h (made by configure) [Weigelt] 94- Change zconf.in.h to zconf.h.in per convention [Weigelt] 95- Check for NULL buf in gzgets() 96- Return empty string for gzgets() with len == 1 (like fgets()) 97- Fix description of gzgets() in zlib.h for end-of-file, NULL return 98- Update minizip to 1.1 [Vollant] 99- Avoid MSVC loss of data warnings in gzread.c, gzwrite.c 100- Note in zlib.h that gzerror() should be used to distinguish from EOF 101- Remove use of snprintf() from gzlib.c 102- Fix bug in gzseek() 103- Update contrib/vstudio, adding vc9 and vc10 [Kuno, Vollant] 104- Fix zconf.h generation in CMakeLists.txt [Lowman] 105- Improve comments in zconf.h where modified by configure 106 107Changes in 1.2.3.8 (13 Feb 2010) 108- Clean up text files (tabs, trailing whitespace, etc.) [Oberhumer] 109- Use z_off64_t in gz_zero() and gz_skip() to match state->skip 110- Avoid comparison problem when sizeof(int) == sizeof(z_off64_t) 111- Revert to Makefile.in from 1.2.3.6 (live with the clutter) 112- Fix missing error return in gzflush(), add zlib.h note 113- Add *64 functions to zlib.map [Levin] 114- Fix signed/unsigned comparison in gz_comp() 115- Use SFLAGS when testing shared linking in configure 116- Add --64 option to ./configure to use -m64 with gcc 117- Fix ./configure --help to correctly name options 118- Have make fail if a test fails [Levin] 119- Avoid buffer overrun in contrib/masmx64/gvmat64.asm [Simpson] 120- Remove assembler object files from contrib 121 122Changes in 1.2.3.7 (24 Jan 2010) 123- Always gzopen() with O_LARGEFILE if available 124- Fix gzdirect() to work immediately after gzopen() or gzdopen() 125- Make gzdirect() more precise when the state changes while reading 126- Improve zlib.h documentation in many places 127- Catch memory allocation failure in gz_open() 128- Complete close operation if seek forward in gzclose_w() fails 129- Return Z_ERRNO from gzclose_r() if close() fails 130- Return Z_STREAM_ERROR instead of EOF for gzclose() being passed NULL 131- Return zero for gzwrite() errors to match zlib.h description 132- Return -1 on gzputs() error to match zlib.h description 133- Add zconf.in.h to allow recovery from configure modification [Weigelt] 134- Fix static library permissions in Makefile.in [Weigelt] 135- Avoid warnings in configure tests that hide functionality [Weigelt] 136- Add *BSD and DragonFly to Linux case in configure [gentoo 123571] 137- Change libzdll.a to libz.dll.a in win32/Makefile.gcc [gentoo 288212] 138- Avoid access of uninitialized data for first inflateReset2 call [Gomes] 139- Keep object files in subdirectories to reduce the clutter somewhat 140- Remove default Makefile and zlibdefs.h, add dummy Makefile 141- Add new external functions to Z_PREFIX, remove duplicates, z_z_ -> z_ 142- Remove zlibdefs.h completely -- modify zconf.h instead 143 144Changes in 1.2.3.6 (17 Jan 2010) 145- Avoid void * arithmetic in gzread.c and gzwrite.c 146- Make compilers happier with const char * for gz_error message 147- Avoid unused parameter warning in inflate.c 148- Avoid signed-unsigned comparison warning in inflate.c 149- Indent #pragma's for traditional C 150- Fix usage of strwinerror() in glib.c, change to gz_strwinerror() 151- Correct email address in configure for system options 152- Update make_vms.com and add make_vms.com to contrib/minizip [Zinser] 153- Update zlib.map [Brown] 154- Fix Makefile.in for Solaris 10 make of example64 and minizip64 [T�r�k] 155- Apply various fixes to CMakeLists.txt [Lowman] 156- Add checks on len in gzread() and gzwrite() 157- Add error message for no more room for gzungetc() 158- Remove zlib version check in gzwrite() 159- Defer compression of gzprintf() result until need to 160- Use snprintf() in gzdopen() if available 161- Remove USE_MMAP configuration determination (only used by minigzip) 162- Remove examples/pigz.c (available separately) 163- Update examples/gun.c to 1.6 164 165Changes in 1.2.3.5 (8 Jan 2010) 166- Add space after #if in zutil.h for some compilers 167- Fix relatively harmless bug in deflate_fast() [Exarevsky] 168- Fix same problem in deflate_slow() 169- Add $(SHAREDLIBV) to LIBS in Makefile.in [Brown] 170- Add deflate_rle() for faster Z_RLE strategy run-length encoding 171- Add deflate_huff() for faster Z_HUFFMAN_ONLY encoding 172- Change name of "write" variable in inffast.c to avoid library collisions 173- Fix premature EOF from gzread() in gzio.c [Brown] 174- Use zlib header window size if windowBits is 0 in inflateInit2() 175- Remove compressBound() call in deflate.c to avoid linking compress.o 176- Replace use of errno in gz* with functions, support WinCE [Alves] 177- Provide alternative to perror() in minigzip.c for WinCE [Alves] 178- Don't use _vsnprintf on later versions of MSVC [Lowman] 179- Add CMake build script and input file [Lowman] 180- Update contrib/minizip to 1.1 [Svensson, Vollant] 181- Moved nintendods directory from contrib to . 182- Replace gzio.c with a new set of routines with the same functionality 183- Add gzbuffer(), gzoffset(), gzclose_r(), gzclose_w() as part of above 184- Update contrib/minizip to 1.1b 185- Change gzeof() to return 0 on error instead of -1 to agree with zlib.h 186 187Changes in 1.2.3.4 (21 Dec 2009) 188- Use old school .SUFFIXES in Makefile.in for FreeBSD compatibility 189- Update comments in configure and Makefile.in for default --shared 190- Fix test -z's in configure [Marquess] 191- Build examplesh and minigzipsh when not testing 192- Change NULL's to Z_NULL's in deflate.c and in comments in zlib.h 193- Import LDFLAGS from the environment in configure 194- Fix configure to populate SFLAGS with discovered CFLAGS options 195- Adapt make_vms.com to the new Makefile.in [Zinser] 196- Add zlib2ansi script for C++ compilation [Marquess] 197- Add _FILE_OFFSET_BITS=64 test to make test (when applicable) 198- Add AMD64 assembler code for longest match to contrib [Teterin] 199- Include options from $SFLAGS when doing $LDSHARED 200- Simplify 64-bit file support by introducing z_off64_t type 201- Make shared object files in objs directory to work around old Sun cc 202- Use only three-part version number for Darwin shared compiles 203- Add rc option to ar in Makefile.in for when ./configure not run 204- Add -WI,-rpath,. to LDFLAGS for OSF 1 V4* 205- Set LD_LIBRARYN32_PATH for SGI IRIX shared compile 206- Protect against _FILE_OFFSET_BITS being defined when compiling zlib 207- Rename Makefile.in targets allstatic to static and allshared to shared 208- Fix static and shared Makefile.in targets to be independent 209- Correct error return bug in gz_open() by setting state [Brown] 210- Put spaces before ;;'s in configure for better sh compatibility 211- Add pigz.c (parallel implementation of gzip) to examples/ 212- Correct constant in crc32.c to UL [Leventhal] 213- Reject negative lengths in crc32_combine() 214- Add inflateReset2() function to work like inflateEnd()/inflateInit2() 215- Include sys/types.h for _LARGEFILE64_SOURCE [Brown] 216- Correct typo in doc/algorithm.txt [Janik] 217- Fix bug in adler32_combine() [Zhu] 218- Catch missing-end-of-block-code error in all inflates and in puff 219 Assures that random input to inflate eventually results in an error 220- Added enough.c (calculation of ENOUGH for inftrees.h) to examples/ 221- Update ENOUGH and its usage to reflect discovered bounds 222- Fix gzerror() error report on empty input file [Brown] 223- Add ush casts in trees.c to avoid pedantic runtime errors 224- Fix typo in zlib.h uncompress() description [Reiss] 225- Correct inflate() comments with regard to automatic header detection 226- Remove deprecation comment on Z_PARTIAL_FLUSH (it stays) 227- Put new version of gzlog (2.0) in examples with interruption recovery 228- Add puff compile option to permit invalid distance-too-far streams 229- Add puff TEST command options, ability to read piped input 230- Prototype the *64 functions in zlib.h when _FILE_OFFSET_BITS == 64, but 231 _LARGEFILE64_SOURCE not defined 232- Fix Z_FULL_FLUSH to truly erase the past by resetting s->strstart 233- Fix deflateSetDictionary() to use all 32K for output consistency 234- Remove extraneous #define MIN_LOOKAHEAD in deflate.c (in deflate.h) 235- Clear bytes after deflate lookahead to avoid use of uninitialized data 236- Change a limit in inftrees.c to be more transparent to Coverity Prevent 237- Update win32/zlib.def with exported symbols from zlib.h 238- Correct spelling error in zlib.h [Willem] 239- Allow Z_BLOCK for deflate() to force a new block 240- Allow negative bits in inflatePrime() to delete existing bit buffer 241- Add Z_TREES flush option to inflate() to return at end of trees 242- Add inflateMark() to return current state information for random access 243- Add Makefile for NintendoDS to contrib [Costa] 244- Add -w in configure compile tests to avoid spurious warnings [Beucler] 245- Fix typos in zlib.h comments for deflateSetDictionary() 246- Fix EOF detection in transparent gzread() [Maier] 247 248Changes in 1.2.3.3 (2 October 2006) 249- Make --shared the default for configure, add a --static option 250- Add compile option to permit invalid distance-too-far streams 251- Add inflateUndermine() function which is required to enable above 252- Remove use of "this" variable name for C++ compatibility [Marquess] 253- Add testing of shared library in make test, if shared library built 254- Use ftello() and fseeko() if available instead of ftell() and fseek() 255- Provide two versions of all functions that use the z_off_t type for 256 binary compatibility -- a normal version and a 64-bit offset version, 257 per the Large File Support Extension when _LARGEFILE64_SOURCE is 258 defined; use the 64-bit versions by default when _FILE_OFFSET_BITS 259 is defined to be 64 260- Add a --uname= option to configure to perhaps help with cross-compiling 261 262Changes in 1.2.3.2 (3 September 2006) 263- Turn off silly Borland warnings [Hay] 264- Use off64_t and define _LARGEFILE64_SOURCE when present 265- Fix missing dependency on inffixed.h in Makefile.in 266- Rig configure --shared to build both shared and static [Teredesai, Truta] 267- Remove zconf.in.h and instead create a new zlibdefs.h file 268- Fix contrib/minizip/unzip.c non-encrypted after encrypted [Vollant] 269- Add treebuild.xml (see http://treebuild.metux.de/) [Weigelt] 270 271Changes in 1.2.3.1 (16 August 2006) 272- Add watcom directory with OpenWatcom make files [Daniel] 273- Remove #undef of FAR in zconf.in.h for MVS [Fedtke] 274- Update make_vms.com [Zinser] 275- Use -fPIC for shared build in configure [Teredesai, Nicholson] 276- Use only major version number for libz.so on IRIX and OSF1 [Reinholdtsen] 277- Use fdopen() (not _fdopen()) for Interix in zutil.h [B�ck] 278- Add some FAQ entries about the contrib directory 279- Update the MVS question in the FAQ 280- Avoid extraneous reads after EOF in gzio.c [Brown] 281- Correct spelling of "successfully" in gzio.c [Randers-Pehrson] 282- Add comments to zlib.h about gzerror() usage [Brown] 283- Set extra flags in gzip header in gzopen() like deflate() does 284- Make configure options more compatible with double-dash conventions 285 [Weigelt] 286- Clean up compilation under Solaris SunStudio cc [Rowe, Reinholdtsen] 287- Fix uninstall target in Makefile.in [Truta] 288- Add pkgconfig support [Weigelt] 289- Use $(DESTDIR) macro in Makefile.in [Reinholdtsen, Weigelt] 290- Replace set_data_type() with a more accurate detect_data_type() in 291 trees.c, according to the txtvsbin.txt document [Truta] 292- Swap the order of #include <stdio.h> and #include "zlib.h" in 293 gzio.c, example.c and minigzip.c [Truta] 294- Shut up annoying VS2005 warnings about standard C deprecation [Rowe, 295 Truta] (where?) 296- Fix target "clean" from win32/Makefile.bor [Truta] 297- Create .pdb and .manifest files in win32/makefile.msc [Ziegler, Rowe] 298- Update zlib www home address in win32/DLL_FAQ.txt [Truta] 299- Update contrib/masmx86/inffas32.asm for VS2005 [Vollant, Van Wassenhove] 300- Enable browse info in the "Debug" and "ASM Debug" configurations in 301 the Visual C++ 6 project, and set (non-ASM) "Debug" as default [Truta] 302- Add pkgconfig support [Weigelt] 303- Add ZLIB_VER_MAJOR, ZLIB_VER_MINOR and ZLIB_VER_REVISION in zlib.h, 304 for use in win32/zlib1.rc [Polushin, Rowe, Truta] 305- Add a document that explains the new text detection scheme to 306 doc/txtvsbin.txt [Truta] 307- Add rfc1950.txt, rfc1951.txt and rfc1952.txt to doc/ [Truta] 308- Move algorithm.txt into doc/ [Truta] 309- Synchronize FAQ with website 310- Fix compressBound(), was low for some pathological cases [Fearnley] 311- Take into account wrapper variations in deflateBound() 312- Set examples/zpipe.c input and output to binary mode for Windows 313- Update examples/zlib_how.html with new zpipe.c (also web site) 314- Fix some warnings in examples/gzlog.c and examples/zran.c (it seems 315 that gcc became pickier in 4.0) 316- Add zlib.map for Linux: "All symbols from zlib-1.1.4 remain 317 un-versioned, the patch adds versioning only for symbols introduced in 318 zlib-1.2.0 or later. It also declares as local those symbols which are 319 not designed to be exported." [Levin] 320- Update Z_PREFIX list in zconf.in.h, add --zprefix option to configure 321- Do not initialize global static by default in trees.c, add a response 322 NO_INIT_GLOBAL_POINTERS to initialize them if needed [Marquess] 323- Don't use strerror() in gzio.c under WinCE [Yakimov] 324- Don't use errno.h in zutil.h under WinCE [Yakimov] 325- Move arguments for AR to its usage to allow replacing ar [Marot] 326- Add HAVE_VISIBILITY_PRAGMA in zconf.in.h for Mozilla [Randers-Pehrson] 327- Improve inflateInit() and inflateInit2() documentation 328- Fix structure size comment in inflate.h 329- Change configure help option from --h* to --help [Santos] 330 331Changes in 1.2.3 (18 July 2005) 332- Apply security vulnerability fixes to contrib/infback9 as well 333- Clean up some text files (carriage returns, trailing space) 334- Update testzlib, vstudio, masmx64, and masmx86 in contrib [Vollant] 335 336Changes in 1.2.2.4 (11 July 2005) 337- Add inflatePrime() function for starting inflation at bit boundary 338- Avoid some Visual C warnings in deflate.c 339- Avoid more silly Visual C warnings in inflate.c and inftrees.c for 64-bit 340 compile 341- Fix some spelling errors in comments [Betts] 342- Correct inflateInit2() error return documentation in zlib.h 343- Add zran.c example of compressed data random access to examples 344 directory, shows use of inflatePrime() 345- Fix cast for assignments to strm->state in inflate.c and infback.c 346- Fix zlibCompileFlags() in zutil.c to use 1L for long shifts [Oberhumer] 347- Move declarations of gf2 functions to right place in crc32.c [Oberhumer] 348- Add cast in trees.c t avoid a warning [Oberhumer] 349- Avoid some warnings in fitblk.c, gun.c, gzjoin.c in examples [Oberhumer] 350- Update make_vms.com [Zinser] 351- Initialize state->write in inflateReset() since copied in inflate_fast() 352- Be more strict on incomplete code sets in inflate_table() and increase 353 ENOUGH and MAXD -- this repairs a possible security vulnerability for 354 invalid inflate input. Thanks to Tavis Ormandy and Markus Oberhumer for 355 discovering the vulnerability and providing test cases. 356- Add ia64 support to configure for HP-UX [Smith] 357- Add error return to gzread() for format or i/o error [Levin] 358- Use malloc.h for OS/2 [Necasek] 359 360Changes in 1.2.2.3 (27 May 2005) 361- Replace 1U constants in inflate.c and inftrees.c for 64-bit compile 362- Typecast fread() return values in gzio.c [Vollant] 363- Remove trailing space in minigzip.c outmode (VC++ can't deal with it) 364- Fix crc check bug in gzread() after gzungetc() [Heiner] 365- Add the deflateTune() function to adjust internal compression parameters 366- Add a fast gzip decompressor, gun.c, to examples (use of inflateBack) 367- Remove an incorrect assertion in examples/zpipe.c 368- Add C++ wrapper in infback9.h [Donais] 369- Fix bug in inflateCopy() when decoding fixed codes 370- Note in zlib.h how much deflateSetDictionary() actually uses 371- Remove USE_DICT_HEAD in deflate.c (would mess up inflate if used) 372- Add _WIN32_WCE to define WIN32 in zconf.in.h [Spencer] 373- Don't include stderr.h or errno.h for _WIN32_WCE in zutil.h [Spencer] 374- Add gzdirect() function to indicate transparent reads 375- Update contrib/minizip [Vollant] 376- Fix compilation of deflate.c when both ASMV and FASTEST [Oberhumer] 377- Add casts in crc32.c to avoid warnings [Oberhumer] 378- Add contrib/masmx64 [Vollant] 379- Update contrib/asm586, asm686, masmx86, testzlib, vstudio [Vollant] 380 381Changes in 1.2.2.2 (30 December 2004) 382- Replace structure assignments in deflate.c and inflate.c with zmemcpy to 383 avoid implicit memcpy calls (portability for no-library compilation) 384- Increase sprintf() buffer size in gzdopen() to allow for large numbers 385- Add INFLATE_STRICT to check distances against zlib header 386- Improve WinCE errno handling and comments [Chang] 387- Remove comment about no gzip header processing in FAQ 388- Add Z_FIXED strategy option to deflateInit2() to force fixed trees 389- Add updated make_vms.com [Coghlan], update README 390- Create a new "examples" directory, move gzappend.c there, add zpipe.c, 391 fitblk.c, gzlog.[ch], gzjoin.c, and zlib_how.html. 392- Add FAQ entry and comments in deflate.c on uninitialized memory access 393- Add Solaris 9 make options in configure [Gilbert] 394- Allow strerror() usage in gzio.c for STDC 395- Fix DecompressBuf in contrib/delphi/ZLib.pas [ManChesTer] 396- Update contrib/masmx86/inffas32.asm and gvmat32.asm [Vollant] 397- Use z_off_t for adler32_combine() and crc32_combine() lengths 398- Make adler32() much faster for small len 399- Use OS_CODE in deflate() default gzip header 400 401Changes in 1.2.2.1 (31 October 2004) 402- Allow inflateSetDictionary() call for raw inflate 403- Fix inflate header crc check bug for file names and comments 404- Add deflateSetHeader() and gz_header structure for custom gzip headers 405- Add inflateGetheader() to retrieve gzip headers 406- Add crc32_combine() and adler32_combine() functions 407- Add alloc_func, free_func, in_func, out_func to Z_PREFIX list 408- Use zstreamp consistently in zlib.h (inflate_back functions) 409- Remove GUNZIP condition from definition of inflate_mode in inflate.h 410 and in contrib/inflate86/inffast.S [Truta, Anderson] 411- Add support for AMD64 in contrib/inflate86/inffas86.c [Anderson] 412- Update projects/README.projects and projects/visualc6 [Truta] 413- Update win32/DLL_FAQ.txt [Truta] 414- Avoid warning under NO_GZCOMPRESS in gzio.c; fix typo [Truta] 415- Deprecate Z_ASCII; use Z_TEXT instead [Truta] 416- Use a new algorithm for setting strm->data_type in trees.c [Truta] 417- Do not define an exit() prototype in zutil.c unless DEBUG defined 418- Remove prototype of exit() from zutil.c, example.c, minigzip.c [Truta] 419- Add comment in zlib.h for Z_NO_FLUSH parameter to deflate() 420- Fix Darwin build version identification [Peterson] 421 422Changes in 1.2.2 (3 October 2004) 423- Update zlib.h comments on gzip in-memory processing 424- Set adler to 1 in inflateReset() to support Java test suite [Walles] 425- Add contrib/dotzlib [Ravn] 426- Update win32/DLL_FAQ.txt [Truta] 427- Update contrib/minizip [Vollant] 428- Move contrib/visual-basic.txt to old/ [Truta] 429- Fix assembler builds in projects/visualc6/ [Truta] 430 431Changes in 1.2.1.2 (9 September 2004) 432- Update INDEX file 433- Fix trees.c to update strm->data_type (no one ever noticed!) 434- Fix bug in error case in inflate.c, infback.c, and infback9.c [Brown] 435- Add "volatile" to crc table flag declaration (for DYNAMIC_CRC_TABLE) 436- Add limited multitasking protection to DYNAMIC_CRC_TABLE 437- Add NO_vsnprintf for VMS in zutil.h [Mozilla] 438- Don't declare strerror() under VMS [Mozilla] 439- Add comment to DYNAMIC_CRC_TABLE to use get_crc_table() to initialize 440- Update contrib/ada [Anisimkov] 441- Update contrib/minizip [Vollant] 442- Fix configure to not hardcode directories for Darwin [Peterson] 443- Fix gzio.c to not return error on empty files [Brown] 444- Fix indentation; update version in contrib/delphi/ZLib.pas and 445 contrib/pascal/zlibpas.pas [Truta] 446- Update mkasm.bat in contrib/masmx86 [Truta] 447- Update contrib/untgz [Truta] 448- Add projects/README.projects [Truta] 449- Add project for MS Visual C++ 6.0 in projects/visualc6 [Cadieux, Truta] 450- Update win32/DLL_FAQ.txt [Truta] 451- Update list of Z_PREFIX symbols in zconf.h [Randers-Pehrson, Truta] 452- Remove an unnecessary assignment to curr in inftrees.c [Truta] 453- Add OS/2 to exe builds in configure [Poltorak] 454- Remove err dummy parameter in zlib.h [Kientzle] 455 456Changes in 1.2.1.1 (9 January 2004) 457- Update email address in README 458- Several FAQ updates 459- Fix a big fat bug in inftrees.c that prevented decoding valid 460 dynamic blocks with only literals and no distance codes -- 461 Thanks to "Hot Emu" for the bug report and sample file 462- Add a note to puff.c on no distance codes case. 463 464Changes in 1.2.1 (17 November 2003) 465- Remove a tab in contrib/gzappend/gzappend.c 466- Update some interfaces in contrib for new zlib functions 467- Update zlib version number in some contrib entries 468- Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta] 469- Support shared libraries on Hurd and KFreeBSD [Brown] 470- Fix error in NO_DIVIDE option of adler32.c 471 472Changes in 1.2.0.8 (4 November 2003) 473- Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas 474- Add experimental NO_DIVIDE #define in adler32.c 475 - Possibly faster on some processors (let me know if it is) 476- Correct Z_BLOCK to not return on first inflate call if no wrap 477- Fix strm->data_type on inflate() return to correctly indicate EOB 478- Add deflatePrime() function for appending in the middle of a byte 479- Add contrib/gzappend for an example of appending to a stream 480- Update win32/DLL_FAQ.txt [Truta] 481- Delete Turbo C comment in README [Truta] 482- Improve some indentation in zconf.h [Truta] 483- Fix infinite loop on bad input in configure script [Church] 484- Fix gzeof() for concatenated gzip files [Johnson] 485- Add example to contrib/visual-basic.txt [Michael B.] 486- Add -p to mkdir's in Makefile.in [vda] 487- Fix configure to properly detect presence or lack of printf functions 488- Add AS400 support [Monnerat] 489- Add a little Cygwin support [Wilson] 490 491Changes in 1.2.0.7 (21 September 2003) 492- Correct some debug formats in contrib/infback9 493- Cast a type in a debug statement in trees.c 494- Change search and replace delimiter in configure from % to # [Beebe] 495- Update contrib/untgz to 0.2 with various fixes [Truta] 496- Add build support for Amiga [Nikl] 497- Remove some directories in old that have been updated to 1.2 498- Add dylib building for Mac OS X in configure and Makefile.in 499- Remove old distribution stuff from Makefile 500- Update README to point to DLL_FAQ.txt, and add comment on Mac OS X 501- Update links in README 502 503Changes in 1.2.0.6 (13 September 2003) 504- Minor FAQ updates 505- Update contrib/minizip to 1.00 [Vollant] 506- Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta] 507- Update POSTINC comment for 68060 [Nikl] 508- Add contrib/infback9 with deflate64 decoding (unsupported) 509- For MVS define NO_vsnprintf and undefine FAR [van Burik] 510- Add pragma for fdopen on MVS [van Burik] 511 512Changes in 1.2.0.5 (8 September 2003) 513- Add OF to inflateBackEnd() declaration in zlib.h 514- Remember start when using gzdopen in the middle of a file 515- Use internal off_t counters in gz* functions to properly handle seeks 516- Perform more rigorous check for distance-too-far in inffast.c 517- Add Z_BLOCK flush option to return from inflate at block boundary 518- Set strm->data_type on return from inflate 519 - Indicate bits unused, if at block boundary, and if in last block 520- Replace size_t with ptrdiff_t in crc32.c, and check for correct size 521- Add condition so old NO_DEFLATE define still works for compatibility 522- FAQ update regarding the Windows DLL [Truta] 523- INDEX update: add qnx entry, remove aix entry [Truta] 524- Install zlib.3 into mandir [Wilson] 525- Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta] 526- Adapt the zlib interface to the new DLL convention guidelines [Truta] 527- Introduce ZLIB_WINAPI macro to allow the export of functions using 528 the WINAPI calling convention, for Visual Basic [Vollant, Truta] 529- Update msdos and win32 scripts and makefiles [Truta] 530- Export symbols by name, not by ordinal, in win32/zlib.def [Truta] 531- Add contrib/ada [Anisimkov] 532- Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta] 533- Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant] 534- Add contrib/masm686 [Truta] 535- Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm 536 [Truta, Vollant] 537- Update contrib/delphi; rename to contrib/pascal; add example [Truta] 538- Remove contrib/delphi2; add a new contrib/delphi [Truta] 539- Avoid inclusion of the nonstandard <memory.h> in contrib/iostream, 540 and fix some method prototypes [Truta] 541- Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip 542 [Truta] 543- Avoid the use of backslash (\) in contrib/minizip [Vollant] 544- Fix file time handling in contrib/untgz; update makefiles [Truta] 545- Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines 546 [Vollant] 547- Remove contrib/vstudio/vc15_16 [Vollant] 548- Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta] 549- Update README.contrib [Truta] 550- Invert the assignment order of match_head and s->prev[...] in 551 INSERT_STRING [Truta] 552- Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings 553 [Truta] 554- Compare function pointers with 0, not with NULL or Z_NULL [Truta] 555- Fix prototype of syncsearch in inflate.c [Truta] 556- Introduce ASMINF macro to be enabled when using an ASM implementation 557 of inflate_fast [Truta] 558- Change NO_DEFLATE to NO_GZCOMPRESS [Truta] 559- Modify test_gzio in example.c to take a single file name as a 560 parameter [Truta] 561- Exit the example.c program if gzopen fails [Truta] 562- Add type casts around strlen in example.c [Truta] 563- Remove casting to sizeof in minigzip.c; give a proper type 564 to the variable compared with SUFFIX_LEN [Truta] 565- Update definitions of STDC and STDC99 in zconf.h [Truta] 566- Synchronize zconf.h with the new Windows DLL interface [Truta] 567- Use SYS16BIT instead of __32BIT__ to distinguish between 568 16- and 32-bit platforms [Truta] 569- Use far memory allocators in small 16-bit memory models for 570 Turbo C [Truta] 571- Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in 572 zlibCompileFlags [Truta] 573- Cygwin has vsnprintf [Wilson] 574- In Windows16, OS_CODE is 0, as in MSDOS [Truta] 575- In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson] 576 577Changes in 1.2.0.4 (10 August 2003) 578- Minor FAQ updates 579- Be more strict when checking inflateInit2's windowBits parameter 580- Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well 581- Add gzip wrapper option to deflateInit2 using windowBits 582- Add updated QNX rule in configure and qnx directory [Bonnefoy] 583- Make inflate distance-too-far checks more rigorous 584- Clean up FAR usage in inflate 585- Add casting to sizeof() in gzio.c and minigzip.c 586 587Changes in 1.2.0.3 (19 July 2003) 588- Fix silly error in gzungetc() implementation [Vollant] 589- Update contrib/minizip and contrib/vstudio [Vollant] 590- Fix printf format in example.c 591- Correct cdecl support in zconf.in.h [Anisimkov] 592- Minor FAQ updates 593 594Changes in 1.2.0.2 (13 July 2003) 595- Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons 596- Attempt to avoid warnings in crc32.c for pointer-int conversion 597- Add AIX to configure, remove aix directory [Bakker] 598- Add some casts to minigzip.c 599- Improve checking after insecure sprintf() or vsprintf() calls 600- Remove #elif's from crc32.c 601- Change leave label to inf_leave in inflate.c and infback.c to avoid 602 library conflicts 603- Remove inflate gzip decoding by default--only enable gzip decoding by 604 special request for stricter backward compatibility 605- Add zlibCompileFlags() function to return compilation information 606- More typecasting in deflate.c to avoid warnings 607- Remove leading underscore from _Capital #defines [Truta] 608- Fix configure to link shared library when testing 609- Add some Windows CE target adjustments [Mai] 610- Remove #define ZLIB_DLL in zconf.h [Vollant] 611- Add zlib.3 [Rodgers] 612- Update RFC URL in deflate.c and algorithm.txt [Mai] 613- Add zlib_dll_FAQ.txt to contrib [Truta] 614- Add UL to some constants [Truta] 615- Update minizip and vstudio [Vollant] 616- Remove vestigial NEED_DUMMY_RETURN from zconf.in.h 617- Expand use of NO_DUMMY_DECL to avoid all dummy structures 618- Added iostream3 to contrib [Schwardt] 619- Replace rewind() with fseek() for WinCE [Truta] 620- Improve setting of zlib format compression level flags 621 - Report 0 for huffman and rle strategies and for level == 0 or 1 622 - Report 2 only for level == 6 623- Only deal with 64K limit when necessary at compile time [Truta] 624- Allow TOO_FAR check to be turned off at compile time [Truta] 625- Add gzclearerr() function [Souza] 626- Add gzungetc() function 627 628Changes in 1.2.0.1 (17 March 2003) 629- Add Z_RLE strategy for run-length encoding [Truta] 630 - When Z_RLE requested, restrict matches to distance one 631 - Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE 632- Correct FASTEST compilation to allow level == 0 633- Clean up what gets compiled for FASTEST 634- Incorporate changes to zconf.in.h [Vollant] 635 - Refine detection of Turbo C need for dummy returns 636 - Refine ZLIB_DLL compilation 637 - Include additional header file on VMS for off_t typedef 638- Try to use _vsnprintf where it supplants vsprintf [Vollant] 639- Add some casts in inffast.c 640- Enchance comments in zlib.h on what happens if gzprintf() tries to 641 write more than 4095 bytes before compression 642- Remove unused state from inflateBackEnd() 643- Remove exit(0) from minigzip.c, example.c 644- Get rid of all those darn tabs 645- Add "check" target to Makefile.in that does the same thing as "test" 646- Add "mostlyclean" and "maintainer-clean" targets to Makefile.in 647- Update contrib/inflate86 [Anderson] 648- Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant] 649- Add msdos and win32 directories with makefiles [Truta] 650- More additions and improvements to the FAQ 651 652Changes in 1.2.0 (9 March 2003) 653- New and improved inflate code 654 - About 20% faster 655 - Does not allocate 32K window unless and until needed 656 - Automatically detects and decompresses gzip streams 657 - Raw inflate no longer needs an extra dummy byte at end 658 - Added inflateBack functions using a callback interface--even faster 659 than inflate, useful for file utilities (gzip, zip) 660 - Added inflateCopy() function to record state for random access on 661 externally generated deflate streams (e.g. in gzip files) 662 - More readable code (I hope) 663- New and improved crc32() 664 - About 50% faster, thanks to suggestions from Rodney Brown 665- Add deflateBound() and compressBound() functions 666- Fix memory leak in deflateInit2() 667- Permit setting dictionary for raw deflate (for parallel deflate) 668- Fix const declaration for gzwrite() 669- Check for some malloc() failures in gzio.c 670- Fix bug in gzopen() on single-byte file 0x1f 671- Fix bug in gzread() on concatenated file with 0x1f at end of buffer 672 and next buffer doesn't start with 0x8b 673- Fix uncompress() to return Z_DATA_ERROR on truncated input 674- Free memory at end of example.c 675- Remove MAX #define in trees.c (conflicted with some libraries) 676- Fix static const's in deflate.c, gzio.c, and zutil.[ch] 677- Declare malloc() and free() in gzio.c if STDC not defined 678- Use malloc() instead of calloc() in zutil.c if int big enough 679- Define STDC for AIX 680- Add aix/ with approach for compiling shared library on AIX 681- Add HP-UX support for shared libraries in configure 682- Add OpenUNIX support for shared libraries in configure 683- Use $cc instead of gcc to build shared library 684- Make prefix directory if needed when installing 685- Correct Macintosh avoidance of typedef Byte in zconf.h 686- Correct Turbo C memory allocation when under Linux 687- Use libz.a instead of -lz in Makefile (assure use of compiled library) 688- Update configure to check for snprintf or vsnprintf functions and their 689 return value, warn during make if using an insecure function 690- Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that 691 is lost when library is used--resolution is to build new zconf.h 692- Documentation improvements (in zlib.h): 693 - Document raw deflate and inflate 694 - Update RFCs URL 695 - Point out that zlib and gzip formats are different 696 - Note that Z_BUF_ERROR is not fatal 697 - Document string limit for gzprintf() and possible buffer overflow 698 - Note requirement on avail_out when flushing 699 - Note permitted values of flush parameter of inflate() 700- Add some FAQs (and even answers) to the FAQ 701- Add contrib/inflate86/ for x86 faster inflate 702- Add contrib/blast/ for PKWare Data Compression Library decompression 703- Add contrib/puff/ simple inflate for deflate format description 704 705Changes in 1.1.4 (11 March 2002) 706- ZFREE was repeated on same allocation on some error conditions. 707 This creates a security problem described in 708 http://www.zlib.org/advisory-2002-03-11.txt 709- Returned incorrect error (Z_MEM_ERROR) on some invalid data 710- Avoid accesses before window for invalid distances with inflate window 711 less than 32K. 712- force windowBits > 8 to avoid a bug in the encoder for a window size 713 of 256 bytes. (A complete fix will be available in 1.1.5). 714 715Changes in 1.1.3 (9 July 1998) 716- fix "an inflate input buffer bug that shows up on rare but persistent 717 occasions" (Mark) 718- fix gzread and gztell for concatenated .gz files (Didier Le Botlan) 719- fix gzseek(..., SEEK_SET) in write mode 720- fix crc check after a gzeek (Frank Faubert) 721- fix miniunzip when the last entry in a zip file is itself a zip file 722 (J Lillge) 723- add contrib/asm586 and contrib/asm686 (Brian Raiter) 724 See http://www.muppetlabs.com/~breadbox/software/assembly.html 725- add support for Delphi 3 in contrib/delphi (Bob Dellaca) 726- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti) 727- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren) 728- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks) 729- added a FAQ file 730 731- Support gzdopen on Mac with Metrowerks (Jason Linhart) 732- Do not redefine Byte on Mac (Brad Pettit & Jason Linhart) 733- define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young) 734- avoid some warnings with Borland C (Tom Tanner) 735- fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant) 736- emulate utime() for WIN32 in contrib/untgz (Gilles Vollant) 737- allow several arguments to configure (Tim Mooney, Frodo Looijaard) 738- use libdir and includedir in Makefile.in (Tim Mooney) 739- support shared libraries on OSF1 V4 (Tim Mooney) 740- remove so_locations in "make clean" (Tim Mooney) 741- fix maketree.c compilation error (Glenn, Mark) 742- Python interface to zlib now in Python 1.5 (Jeremy Hylton) 743- new Makefile.riscos (Rich Walker) 744- initialize static descriptors in trees.c for embedded targets (Nick Smith) 745- use "foo-gz" in example.c for RISCOS and VMS (Nick Smith) 746- add the OS/2 files in Makefile.in too (Andrew Zabolotny) 747- fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane) 748- fix maketree.c to allow clean compilation of inffixed.h (Mark) 749- fix parameter check in deflateCopy (Gunther Nikl) 750- cleanup trees.c, use compressed_len only in debug mode (Christian Spieler) 751- Many portability patches by Christian Spieler: 752 . zutil.c, zutil.h: added "const" for zmem* 753 . Make_vms.com: fixed some typos 754 . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists 755 . msdos/Makefile.msc: remove "default rtl link library" info from obj files 756 . msdos/Makefile.*: use model-dependent name for the built zlib library 757 . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc: 758 new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT) 759- use define instead of typedef for Bytef also for MSC small/medium (Tom Lane) 760- replace __far with _far for better portability (Christian Spieler, Tom Lane) 761- fix test for errno.h in configure (Tim Newsham) 762 763Changes in 1.1.2 (19 March 98) 764- added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant) 765 See http://www.winimage.com/zLibDll/unzip.html 766- preinitialize the inflate tables for fixed codes, to make the code 767 completely thread safe (Mark) 768- some simplifications and slight speed-up to the inflate code (Mark) 769- fix gzeof on non-compressed files (Allan Schrum) 770- add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs) 771- use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn) 772- added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny) 773- add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori) 774- do not wrap extern "C" around system includes (Tom Lane) 775- mention zlib binding for TCL in README (Andreas Kupries) 776- added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert) 777- allow "make install prefix=..." even after configure (Glenn Randers-Pehrson) 778- allow "configure --prefix $HOME" (Tim Mooney) 779- remove warnings in example.c and gzio.c (Glenn Randers-Pehrson) 780- move Makefile.sas to amiga/Makefile.sas 781 782Changes in 1.1.1 (27 Feb 98) 783- fix macros _tr_tally_* in deflate.h for debug mode (Glenn Randers-Pehrson) 784- remove block truncation heuristic which had very marginal effect for zlib 785 (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the 786 compression ratio on some files. This also allows inlining _tr_tally for 787 matches in deflate_slow. 788- added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier) 789 790Changes in 1.1.0 (24 Feb 98) 791- do not return STREAM_END prematurely in inflate (John Bowler) 792- revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler) 793- compile with -DFASTEST to get compression code optimized for speed only 794- in minigzip, try mmap'ing the input file first (Miguel Albrecht) 795- increase size of I/O buffers in minigzip.c and gzio.c (not a big gain 796 on Sun but significant on HP) 797 798- add a pointer to experimental unzip library in README (Gilles Vollant) 799- initialize variable gcc in configure (Chris Herborth) 800 801Changes in 1.0.9 (17 Feb 1998) 802- added gzputs and gzgets functions 803- do not clear eof flag in gzseek (Mark Diekhans) 804- fix gzseek for files in transparent mode (Mark Diekhans) 805- do not assume that vsprintf returns the number of bytes written (Jens Krinke) 806- replace EXPORT with ZEXPORT to avoid conflict with other programs 807- added compress2 in zconf.h, zlib.def, zlib.dnt 808- new asm code from Gilles Vollant in contrib/asm386 809- simplify the inflate code (Mark): 810 . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new() 811 . ZALLOC the length list in inflate_trees_fixed() instead of using stack 812 . ZALLOC the value area for huft_build() instead of using stack 813 . Simplify Z_FINISH check in inflate() 814 815- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8 816- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi) 817- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with 818 the declaration of FAR (Gilles VOllant) 819- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann) 820- read_buf buf parameter of type Bytef* instead of charf* 821- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout) 822- do not redeclare unlink in minigzip.c for WIN32 (John Bowler) 823- fix check for presence of directories in "make install" (Ian Willis) 824 825Changes in 1.0.8 (27 Jan 1998) 826- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant) 827- fix gzgetc and gzputc for big endian systems (Markus Oberhumer) 828- added compress2() to allow setting the compression level 829- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong) 830- use constant arrays for the static trees in trees.c instead of computing 831 them at run time (thanks to Ken Raeburn for this suggestion). To create 832 trees.h, compile with GEN_TREES_H and run "make test". 833- check return code of example in "make test" and display result 834- pass minigzip command line options to file_compress 835- simplifying code of inflateSync to avoid gcc 2.8 bug 836 837- support CC="gcc -Wall" in configure -s (QingLong) 838- avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn) 839- fix test for shared library support to avoid compiler warnings 840- zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant) 841- check for TARGET_OS_MAC in addition to MACOS (Brad Pettit) 842- do not use fdopen for Metrowerks on Mac (Brad Pettit)) 843- add checks for gzputc and gzputc in example.c 844- avoid warnings in gzio.c and deflate.c (Andreas Kleinert) 845- use const for the CRC table (Ken Raeburn) 846- fixed "make uninstall" for shared libraries 847- use Tracev instead of Trace in infblock.c 848- in example.c use correct compressed length for test_sync 849- suppress +vnocompatwarnings in configure for HPUX (not always supported) 850 851Changes in 1.0.7 (20 Jan 1998) 852- fix gzseek which was broken in write mode 853- return error for gzseek to negative absolute position 854- fix configure for Linux (Chun-Chung Chen) 855- increase stack space for MSC (Tim Wegner) 856- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant) 857- define EXPORTVA for gzprintf (Gilles Vollant) 858- added man page zlib.3 (Rick Rodgers) 859- for contrib/untgz, fix makedir() and improve Makefile 860 861- check gzseek in write mode in example.c 862- allocate extra buffer for seeks only if gzseek is actually called 863- avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant) 864- add inflateSyncPoint in zconf.h 865- fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def 866 867Changes in 1.0.6 (19 Jan 1998) 868- add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and 869 gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code) 870- Fix a deflate bug occurring only with compression level 0 (thanks to 871 Andy Buckler for finding this one). 872- In minigzip, pass transparently also the first byte for .Z files. 873- return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress() 874- check Z_FINISH in inflate (thanks to Marc Schluper) 875- Implement deflateCopy (thanks to Adam Costello) 876- make static libraries by default in configure, add --shared option. 877- move MSDOS or Windows specific files to directory msdos 878- suppress the notion of partial flush to simplify the interface 879 (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4) 880- suppress history buffer provided by application to simplify the interface 881 (this feature was not implemented anyway in 1.0.4) 882- next_in and avail_in must be initialized before calling inflateInit or 883 inflateInit2 884- add EXPORT in all exported functions (for Windows DLL) 885- added Makefile.nt (thanks to Stephen Williams) 886- added the unsupported "contrib" directory: 887 contrib/asm386/ by Gilles Vollant <info@winimage.com> 888 386 asm code replacing longest_match(). 889 contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu> 890 A C++ I/O streams interface to the zlib gz* functions 891 contrib/iostream2/ by Tyge L�vset <Tyge.Lovset@cmr.no> 892 Another C++ I/O streams interface 893 contrib/untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es> 894 A very simple tar.gz file extractor using zlib 895 contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl> 896 How to use compress(), uncompress() and the gz* functions from VB. 897- pass params -f (filtered data), -h (huffman only), -1 to -9 (compression 898 level) in minigzip (thanks to Tom Lane) 899 900- use const for rommable constants in deflate 901- added test for gzseek and gztell in example.c 902- add undocumented function inflateSyncPoint() (hack for Paul Mackerras) 903- add undocumented function zError to convert error code to string 904 (for Tim Smithers) 905- Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code. 906- Use default memcpy for Symantec MSDOS compiler. 907- Add EXPORT keyword for check_func (needed for Windows DLL) 908- add current directory to LD_LIBRARY_PATH for "make test" 909- create also a link for libz.so.1 910- added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura) 911- use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX) 912- added -soname for Linux in configure (Chun-Chung Chen, 913- assign numbers to the exported functions in zlib.def (for Windows DLL) 914- add advice in zlib.h for best usage of deflateSetDictionary 915- work around compiler bug on Atari (cast Z_NULL in call of s->checkfn) 916- allow compilation with ANSI keywords only enabled for TurboC in large model 917- avoid "versionString"[0] (Borland bug) 918- add NEED_DUMMY_RETURN for Borland 919- use variable z_verbose for tracing in debug mode (L. Peter Deutsch). 920- allow compilation with CC 921- defined STDC for OS/2 (David Charlap) 922- limit external names to 8 chars for MVS (Thomas Lund) 923- in minigzip.c, use static buffers only for 16-bit systems 924- fix suffix check for "minigzip -d foo.gz" 925- do not return an error for the 2nd of two consecutive gzflush() (Felix Lee) 926- use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau) 927- added makelcc.bat for lcc-win32 (Tom St Denis) 928- in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe) 929- Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion. 930- check for unistd.h in configure (for off_t) 931- remove useless check parameter in inflate_blocks_free 932- avoid useless assignment of s->check to itself in inflate_blocks_new 933- do not flush twice in gzclose (thanks to Ken Raeburn) 934- rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h 935- use NO_ERRNO_H instead of enumeration of operating systems with errno.h 936- work around buggy fclose on pipes for HP/UX 937- support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson) 938- fix configure if CC is already equal to gcc 939 940Changes in 1.0.5 (3 Jan 98) 941- Fix inflate to terminate gracefully when fed corrupted or invalid data 942- Use const for rommable constants in inflate 943- Eliminate memory leaks on error conditions in inflate 944- Removed some vestigial code in inflate 945- Update web address in README 946 947Changes in 1.0.4 (24 Jul 96) 948- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF 949 bit, so the decompressor could decompress all the correct data but went 950 on to attempt decompressing extra garbage data. This affected minigzip too. 951- zlibVersion and gzerror return const char* (needed for DLL) 952- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno) 953- use z_error only for DEBUG (avoid problem with DLLs) 954 955Changes in 1.0.3 (2 Jul 96) 956- use z_streamp instead of z_stream *, which is now a far pointer in MSDOS 957 small and medium models; this makes the library incompatible with previous 958 versions for these models. (No effect in large model or on other systems.) 959- return OK instead of BUF_ERROR if previous deflate call returned with 960 avail_out as zero but there is nothing to do 961- added memcmp for non STDC compilers 962- define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly) 963- define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO) 964- better check for 16-bit mode MSC (avoids problem with Symantec) 965 966Changes in 1.0.2 (23 May 96) 967- added Windows DLL support 968- added a function zlibVersion (for the DLL support) 969- fixed declarations using Bytef in infutil.c (pb with MSDOS medium model) 970- Bytef is define's instead of typedef'd only for Borland C 971- avoid reading uninitialized memory in example.c 972- mention in README that the zlib format is now RFC1950 973- updated Makefile.dj2 974- added algorithm.doc 975 976Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion] 977- fix array overlay in deflate.c which sometimes caused bad compressed data 978- fix inflate bug with empty stored block 979- fix MSDOS medium model which was broken in 0.99 980- fix deflateParams() which could generated bad compressed data. 981- Bytef is define'd instead of typedef'ed (work around Borland bug) 982- added an INDEX file 983- new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32), 984 Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas) 985- speed up adler32 for modern machines without auto-increment 986- added -ansi for IRIX in configure 987- static_init_done in trees.c is an int 988- define unlink as delete for VMS 989- fix configure for QNX 990- add configure branch for SCO and HPUX 991- avoid many warnings (unused variables, dead assignments, etc...) 992- no fdopen for BeOS 993- fix the Watcom fix for 32 bit mode (define FAR as empty) 994- removed redefinition of Byte for MKWERKS 995- work around an MWKERKS bug (incorrect merge of all .h files) 996 997Changes in 0.99 (27 Jan 96) 998- allow preset dictionary shared between compressor and decompressor 999- allow compression level 0 (no compression) 1000- add deflateParams in zlib.h: allow dynamic change of compression level 1001 and compression strategy. 1002- test large buffers and deflateParams in example.c 1003- add optional "configure" to build zlib as a shared library 1004- suppress Makefile.qnx, use configure instead 1005- fixed deflate for 64-bit systems (detected on Cray) 1006- fixed inflate_blocks for 64-bit systems (detected on Alpha) 1007- declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2) 1008- always return Z_BUF_ERROR when deflate() has nothing to do 1009- deflateInit and inflateInit are now macros to allow version checking 1010- prefix all global functions and types with z_ with -DZ_PREFIX 1011- make falloc completely reentrant (inftrees.c) 1012- fixed very unlikely race condition in ct_static_init 1013- free in reverse order of allocation to help memory manager 1014- use zlib-1.0/* instead of zlib/* inside the tar.gz 1015- make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith 1016 -Wconversion -Wstrict-prototypes -Wmissing-prototypes" 1017- allow gzread on concatenated .gz files 1018- deflateEnd now returns Z_DATA_ERROR if it was premature 1019- deflate is finally (?) fully deterministic (no matches beyond end of input) 1020- Document Z_SYNC_FLUSH 1021- add uninstall in Makefile 1022- Check for __cpluplus in zlib.h 1023- Better test in ct_align for partial flush 1024- avoid harmless warnings for Borland C++ 1025- initialize hash_head in deflate.c 1026- avoid warning on fdopen (gzio.c) for HP cc -Aa 1027- include stdlib.h for STDC compilers 1028- include errno.h for Cray 1029- ignore error if ranlib doesn't exist 1030- call ranlib twice for NeXTSTEP 1031- use exec_prefix instead of prefix for libz.a 1032- renamed ct_* as _tr_* to avoid conflict with applications 1033- clear z->msg in inflateInit2 before any error return 1034- initialize opaque in example.c, gzio.c, deflate.c and inflate.c 1035- fixed typo in zconf.h (_GNUC__ => __GNUC__) 1036- check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode) 1037- fix typo in Make_vms.com (f$trnlnm -> f$getsyi) 1038- in fcalloc, normalize pointer if size > 65520 bytes 1039- don't use special fcalloc for 32 bit Borland C++ 1040- use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc... 1041- use Z_BINARY instead of BINARY 1042- document that gzclose after gzdopen will close the file 1043- allow "a" as mode in gzopen. 1044- fix error checking in gzread 1045- allow skipping .gz extra-field on pipes 1046- added reference to Perl interface in README 1047- put the crc table in FAR data (I dislike more and more the medium model :) 1048- added get_crc_table 1049- added a dimension to all arrays (Borland C can't count). 1050- workaround Borland C bug in declaration of inflate_codes_new & inflate_fast 1051- guard against multiple inclusion of *.h (for precompiled header on Mac) 1052- Watcom C pretends to be Microsoft C small model even in 32 bit mode. 1053- don't use unsized arrays to avoid silly warnings by Visual C++: 1054 warning C4746: 'inflate_mask' : unsized array treated as '__far' 1055 (what's wrong with far data in far model?). 1056- define enum out of inflate_blocks_state to allow compilation with C++ 1057 1058Changes in 0.95 (16 Aug 95) 1059- fix MSDOS small and medium model (now easier to adapt to any compiler) 1060- inlined send_bits 1061- fix the final (:-) bug for deflate with flush (output was correct but 1062 not completely flushed in rare occasions). 1063- default window size is same for compression and decompression 1064 (it's now sufficient to set MAX_WBITS in zconf.h). 1065- voidp -> voidpf and voidnp -> voidp (for consistency with other 1066 typedefs and because voidnp was not near in large model). 1067 1068Changes in 0.94 (13 Aug 95) 1069- support MSDOS medium model 1070- fix deflate with flush (could sometimes generate bad output) 1071- fix deflateReset (zlib header was incorrectly suppressed) 1072- added support for VMS 1073- allow a compression level in gzopen() 1074- gzflush now calls fflush 1075- For deflate with flush, flush even if no more input is provided. 1076- rename libgz.a as libz.a 1077- avoid complex expression in infcodes.c triggering Turbo C bug 1078- work around a problem with gcc on Alpha (in INSERT_STRING) 1079- don't use inline functions (problem with some gcc versions) 1080- allow renaming of Byte, uInt, etc... with #define. 1081- avoid warning about (unused) pointer before start of array in deflate.c 1082- avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c 1083- avoid reserved word 'new' in trees.c 1084 1085Changes in 0.93 (25 June 95) 1086- temporarily disable inline functions 1087- make deflate deterministic 1088- give enough lookahead for PARTIAL_FLUSH 1089- Set binary mode for stdin/stdout in minigzip.c for OS/2 1090- don't even use signed char in inflate (not portable enough) 1091- fix inflate memory leak for segmented architectures 1092 1093Changes in 0.92 (3 May 95) 1094- don't assume that char is signed (problem on SGI) 1095- Clear bit buffer when starting a stored block 1096- no memcpy on Pyramid 1097- suppressed inftest.c 1098- optimized fill_window, put longest_match inline for gcc 1099- optimized inflate on stored blocks. 1100- untabify all sources to simplify patches 1101 1102Changes in 0.91 (2 May 95) 1103- Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h 1104- Document the memory requirements in zconf.h 1105- added "make install" 1106- fix sync search logic in inflateSync 1107- deflate(Z_FULL_FLUSH) now works even if output buffer too short 1108- after inflateSync, don't scare people with just "lo world" 1109- added support for DJGPP 1110 1111Changes in 0.9 (1 May 95) 1112- don't assume that zalloc clears the allocated memory (the TurboC bug 1113 was Mark's bug after all :) 1114- let again gzread copy uncompressed data unchanged (was working in 0.71) 1115- deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented 1116- added a test of inflateSync in example.c 1117- moved MAX_WBITS to zconf.h because users might want to change that. 1118- document explicitly that zalloc(64K) on MSDOS must return a normalized 1119 pointer (zero offset) 1120- added Makefiles for Microsoft C, Turbo C, Borland C++ 1121- faster crc32() 1122 1123Changes in 0.8 (29 April 95) 1124- added fast inflate (inffast.c) 1125- deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this 1126 is incompatible with previous versions of zlib which returned Z_OK. 1127- work around a TurboC compiler bug (bad code for b << 0, see infutil.h) 1128 (actually that was not a compiler bug, see 0.81 above) 1129- gzread no longer reads one extra byte in certain cases 1130- In gzio destroy(), don't reference a freed structure 1131- avoid many warnings for MSDOS 1132- avoid the ERROR symbol which is used by MS Windows 1133 1134Changes in 0.71 (14 April 95) 1135- Fixed more MSDOS compilation problems :( There is still a bug with 1136 TurboC large model. 1137 1138Changes in 0.7 (14 April 95) 1139- Added full inflate support. 1140- Simplified the crc32() interface. The pre- and post-conditioning 1141 (one's complement) is now done inside crc32(). WARNING: this is 1142 incompatible with previous versions; see zlib.h for the new usage. 1143 1144Changes in 0.61 (12 April 95) 1145- workaround for a bug in TurboC. example and minigzip now work on MSDOS. 1146 1147Changes in 0.6 (11 April 95) 1148- added minigzip.c 1149- added gzdopen to reopen a file descriptor as gzFile 1150- added transparent reading of non-gziped files in gzread. 1151- fixed bug in gzread (don't read crc as data) 1152- fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose). 1153- don't allocate big arrays in the stack (for MSDOS) 1154- fix some MSDOS compilation problems 1155 1156Changes in 0.5: 1157- do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but 1158 not yet Z_FULL_FLUSH. 1159- support decompression but only in a single step (forced Z_FINISH) 1160- added opaque object for zalloc and zfree. 1161- added deflateReset and inflateReset 1162- added a variable zlib_version for consistency checking. 1163- renamed the 'filter' parameter of deflateInit2 as 'strategy'. 1164 Added Z_FILTERED and Z_HUFFMAN_ONLY constants. 1165 1166Changes in 0.4: 1167- avoid "zip" everywhere, use zlib instead of ziplib. 1168- suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush 1169 if compression method == 8. 1170- added adler32 and crc32 1171- renamed deflateOptions as deflateInit2, call one or the other but not both 1172- added the method parameter for deflateInit2. 1173- added inflateInit2 1174- simplied considerably deflateInit and inflateInit by not supporting 1175 user-provided history buffer. This is supported only in deflateInit2 1176 and inflateInit2. 1177 1178Changes in 0.3: 1179- prefix all macro names with Z_ 1180- use Z_FINISH instead of deflateEnd to finish compression. 1181- added Z_HUFFMAN_ONLY 1182- added gzerror() 1183