ChangeLog revision 205471
1 2 ChangeLog file for zlib 3 4Changes in 1.2.4 (14 Mar 2010) 5- Fix VER3 extraction in configure for no fourth subversion 6- Update zlib.3, add docs to Makefile.in to make .pdf out of it 7- Add zlib.3.pdf to distribution 8- Don't set error code in gzerror() if passed pointer is NULL 9- Apply destination directory fixes to CMakeLists.txt [Lowman] 10- Move #cmakedefine's to a new zconf.in.cmakein 11- Restore zconf.h for builds that don't use configure or cmake 12- Add distclean to dummy Makefile for convenience 13- Update and improve INDEX, README, and FAQ 14- Update CMakeLists.txt for the return of zconf.h [Lowman] 15- Update contrib/vstudio/vc9 and vc10 [Vollant] 16- Change libz.dll.a back to libzdll.a in win32/Makefile.gcc 17- Apply license and readme changes to contrib/asm686 [Raiter] 18- Check file name lengths and add -c option in minigzip.c [Li] 19- Update contrib/amd64 and contrib/masmx86/ [Vollant] 20- Avoid use of "eof" parameter in trees.c to not shadow library variable 21- Update make_vms.com for removal of zlibdefs.h [Zinser] 22- Update assembler code and vstudio projects in contrib [Vollant] 23- Remove outdated assembler code contrib/masm686 and contrib/asm586 24- Remove old vc7 and vc8 from contrib/vstudio 25- Update win32/Makefile.msc, add ZLIB_VER_SUBREVISION [Rowe] 26- Fix memory leaks in gzclose_r() and gzclose_w(), file leak in gz_open() 27- Add contrib/gcc_gvmat64 for longest_match and inflate_fast [Vollant] 28- Remove *64 functions from win32/zlib.def (they're not 64-bit yet) 29- Fix bug in void-returning vsprintf() case in gzwrite.c 30- Fix name change from inflate.h in contrib/inflate86/inffas86.c 31- Check if temporary file exists before removing in make_vms.com [Zinser] 32- Fix make install and uninstall for --static option 33- Fix usage of _MSC_VER in gzguts.h and zutil.h [Truta] 34- Update readme.txt in contrib/masmx64 and masmx86 to assemble 35 36Changes in 1.2.3.9 (21 Feb 2010) 37- Expunge gzio.c 38- Move as400 build information to old 39- Fix updates in contrib/minizip and contrib/vstudio 40- Add const to vsnprintf test in configure to avoid warnings [Weigelt] 41- Delete zconf.h (made by configure) [Weigelt] 42- Change zconf.in.h to zconf.h.in per convention [Weigelt] 43- Check for NULL buf in gzgets() 44- Return empty string for gzgets() with len == 1 (like fgets()) 45- Fix description of gzgets() in zlib.h for end-of-file, NULL return 46- Update minizip to 1.1 [Vollant] 47- Avoid MSVC loss of data warnings in gzread.c, gzwrite.c 48- Note in zlib.h that gzerror() should be used to distinguish from EOF 49- Remove use of snprintf() from gzlib.c 50- Fix bug in gzseek() 51- Update contrib/vstudio, adding vc9 and vc10 [Kuno, Vollant] 52- Fix zconf.h generation in CMakeLists.txt [Lowman] 53- Improve comments in zconf.h where modified by configure 54 55Changes in 1.2.3.8 (13 Feb 2010) 56- Clean up text files (tabs, trailing whitespace, etc.) [Oberhumer] 57- Use z_off64_t in gz_zero() and gz_skip() to match state->skip 58- Avoid comparison problem when sizeof(int) == sizeof(z_off64_t) 59- Revert to Makefile.in from 1.2.3.6 (live with the clutter) 60- Fix missing error return in gzflush(), add zlib.h note 61- Add *64 functions to zlib.map [Levin] 62- Fix signed/unsigned comparison in gz_comp() 63- Use SFLAGS when testing shared linking in configure 64- Add --64 option to ./configure to use -m64 with gcc 65- Fix ./configure --help to correctly name options 66- Have make fail if a test fails [Levin] 67- Avoid buffer overrun in contrib/masmx64/gvmat64.asm [Simpson] 68- Remove assembler object files from contrib 69 70Changes in 1.2.3.7 (24 Jan 2010) 71- Always gzopen() with O_LARGEFILE if available 72- Fix gzdirect() to work immediately after gzopen() or gzdopen() 73- Make gzdirect() more precise when the state changes while reading 74- Improve zlib.h documentation in many places 75- Catch memory allocation failure in gz_open() 76- Complete close operation if seek forward in gzclose_w() fails 77- Return Z_ERRNO from gzclose_r() if close() fails 78- Return Z_STREAM_ERROR instead of EOF for gzclose() being passed NULL 79- Return zero for gzwrite() errors to match zlib.h description 80- Return -1 on gzputs() error to match zlib.h description 81- Add zconf.in.h to allow recovery from configure modification [Weigelt] 82- Fix static library permissions in Makefile.in [Weigelt] 83- Avoid warnings in configure tests that hide functionality [Weigelt] 84- Add *BSD and DragonFly to Linux case in configure [gentoo 123571] 85- Change libzdll.a to libz.dll.a in win32/Makefile.gcc [gentoo 288212] 86- Avoid access of uninitialized data for first inflateReset2 call [Gomes] 87- Keep object files in subdirectories to reduce the clutter somewhat 88- Remove default Makefile and zlibdefs.h, add dummy Makefile 89- Add new external functions to Z_PREFIX, remove duplicates, z_z_ -> z_ 90- Remove zlibdefs.h completely -- modify zconf.h instead 91 92Changes in 1.2.3.6 (17 Jan 2010) 93- Avoid void * arithmetic in gzread.c and gzwrite.c 94- Make compilers happier with const char * for gz_error message 95- Avoid unused parameter warning in inflate.c 96- Avoid signed-unsigned comparison warning in inflate.c 97- Indent #pragma's for traditional C 98- Fix usage of strwinerror() in glib.c, change to gz_strwinerror() 99- Correct email address in configure for system options 100- Update make_vms.com and add make_vms.com to contrib/minizip [Zinser] 101- Update zlib.map [Brown] 102- Fix Makefile.in for Solaris 10 make of example64 and minizip64 [T�r�k] 103- Apply various fixes to CMakeLists.txt [Lowman] 104- Add checks on len in gzread() and gzwrite() 105- Add error message for no more room for gzungetc() 106- Remove zlib version check in gzwrite() 107- Defer compression of gzprintf() result until need to 108- Use snprintf() in gzdopen() if available 109- Remove USE_MMAP configuration determination (only used by minigzip) 110- Remove examples/pigz.c (available separately) 111- Update examples/gun.c to 1.6 112 113Changes in 1.2.3.5 (8 Jan 2010) 114- Add space after #if in zutil.h for some compilers 115- Fix relatively harmless bug in deflate_fast() [Exarevsky] 116- Fix same problem in deflate_slow() 117- Add $(SHAREDLIBV) to LIBS in Makefile.in [Brown] 118- Add deflate_rle() for faster Z_RLE strategy run-length encoding 119- Add deflate_huff() for faster Z_HUFFMAN_ONLY encoding 120- Change name of "write" variable in inffast.c to avoid library collisions 121- Fix premature EOF from gzread() in gzio.c [Brown] 122- Use zlib header window size if windowBits is 0 in inflateInit2() 123- Remove compressBound() call in deflate.c to avoid linking compress.o 124- Replace use of errno in gz* with functions, support WinCE [Alves] 125- Provide alternative to perror() in minigzip.c for WinCE [Alves] 126- Don't use _vsnprintf on later versions of MSVC [Lowman] 127- Add CMake build script and input file [Lowman] 128- Update contrib/minizip to 1.1 [Svensson, Vollant] 129- Moved nintendods directory from contrib to . 130- Replace gzio.c with a new set of routines with the same functionality 131- Add gzbuffer(), gzoffset(), gzclose_r(), gzclose_w() as part of above 132- Update contrib/minizip to 1.1b 133- Change gzeof() to return 0 on error instead of -1 to agree with zlib.h 134 135Changes in 1.2.3.4 (21 Dec 2009) 136- Use old school .SUFFIXES in Makefile.in for FreeBSD compatibility 137- Update comments in configure and Makefile.in for default --shared 138- Fix test -z's in configure [Marquess] 139- Build examplesh and minigzipsh when not testing 140- Change NULL's to Z_NULL's in deflate.c and in comments in zlib.h 141- Import LDFLAGS from the environment in configure 142- Fix configure to populate SFLAGS with discovered CFLAGS options 143- Adapt make_vms.com to the new Makefile.in [Zinser] 144- Add zlib2ansi script for C++ compilation [Marquess] 145- Add _FILE_OFFSET_BITS=64 test to make test (when applicable) 146- Add AMD64 assembler code for longest match to contrib [Teterin] 147- Include options from $SFLAGS when doing $LDSHARED 148- Simplify 64-bit file support by introducing z_off64_t type 149- Make shared object files in objs directory to work around old Sun cc 150- Use only three-part version number for Darwin shared compiles 151- Add rc option to ar in Makefile.in for when ./configure not run 152- Add -WI,-rpath,. to LDFLAGS for OSF 1 V4* 153- Set LD_LIBRARYN32_PATH for SGI IRIX shared compile 154- Protect against _FILE_OFFSET_BITS being defined when compiling zlib 155- Rename Makefile.in targets allstatic to static and allshared to shared 156- Fix static and shared Makefile.in targets to be independent 157- Correct error return bug in gz_open() by setting state [Brown] 158- Put spaces before ;;'s in configure for better sh compatibility 159- Add pigz.c (parallel implementation of gzip) to examples/ 160- Correct constant in crc32.c to UL [Leventhal] 161- Reject negative lengths in crc32_combine() 162- Add inflateReset2() function to work like inflateEnd()/inflateInit2() 163- Include sys/types.h for _LARGEFILE64_SOURCE [Brown] 164- Correct typo in doc/algorithm.txt [Janik] 165- Fix bug in adler32_combine() [Zhu] 166- Catch missing-end-of-block-code error in all inflates and in puff 167 Assures that random input to inflate eventually results in an error 168- Added enough.c (calculation of ENOUGH for inftrees.h) to examples/ 169- Update ENOUGH and its usage to reflect discovered bounds 170- Fix gzerror() error report on empty input file [Brown] 171- Add ush casts in trees.c to avoid pedantic runtime errors 172- Fix typo in zlib.h uncompress() description [Reiss] 173- Correct inflate() comments with regard to automatic header detection 174- Remove deprecation comment on Z_PARTIAL_FLUSH (it stays) 175- Put new version of gzlog (2.0) in examples with interruption recovery 176- Add puff compile option to permit invalid distance-too-far streams 177- Add puff TEST command options, ability to read piped input 178- Prototype the *64 functions in zlib.h when _FILE_OFFSET_BITS == 64, but 179 _LARGEFILE64_SOURCE not defined 180- Fix Z_FULL_FLUSH to truly erase the past by resetting s->strstart 181- Fix deflateSetDictionary() to use all 32K for output consistency 182- Remove extraneous #define MIN_LOOKAHEAD in deflate.c (in deflate.h) 183- Clear bytes after deflate lookahead to avoid use of uninitialized data 184- Change a limit in inftrees.c to be more transparent to Coverity Prevent 185- Update win32/zlib.def with exported symbols from zlib.h 186- Correct spelling error in zlib.h [Willem] 187- Allow Z_BLOCK for deflate() to force a new block 188- Allow negative bits in inflatePrime() to delete existing bit buffer 189- Add Z_TREES flush option to inflate() to return at end of trees 190- Add inflateMark() to return current state information for random access 191- Add Makefile for NintendoDS to contrib [Costa] 192- Add -w in configure compile tests to avoid spurious warnings [Beucler] 193- Fix typos in zlib.h comments for deflateSetDictionary() 194- Fix EOF detection in transparent gzread() [Maier] 195 196Changes in 1.2.3.3 (2 October 2006) 197- Make --shared the default for configure, add a --static option 198- Add compile option to permit invalid distance-too-far streams 199- Add inflateUndermine() function which is required to enable above 200- Remove use of "this" variable name for C++ compatibility [Marquess] 201- Add testing of shared library in make test, if shared library built 202- Use ftello() and fseeko() if available instead of ftell() and fseek() 203- Provide two versions of all functions that use the z_off_t type for 204 binary compatibility -- a normal version and a 64-bit offset version, 205 per the Large File Support Extension when _LARGEFILE64_SOURCE is 206 defined; use the 64-bit versions by default when _FILE_OFFSET_BITS 207 is defined to be 64 208- Add a --uname= option to configure to perhaps help with cross-compiling 209 210Changes in 1.2.3.2 (3 September 2006) 211- Turn off silly Borland warnings [Hay] 212- Use off64_t and define _LARGEFILE64_SOURCE when present 213- Fix missing dependency on inffixed.h in Makefile.in 214- Rig configure --shared to build both shared and static [Teredesai, Truta] 215- Remove zconf.in.h and instead create a new zlibdefs.h file 216- Fix contrib/minizip/unzip.c non-encrypted after encrypted [Vollant] 217- Add treebuild.xml (see http://treebuild.metux.de/) [Weigelt] 218 219Changes in 1.2.3.1 (16 August 2006) 220- Add watcom directory with OpenWatcom make files [Daniel] 221- Remove #undef of FAR in zconf.in.h for MVS [Fedtke] 222- Update make_vms.com [Zinser] 223- Use -fPIC for shared build in configure [Teredesai, Nicholson] 224- Use only major version number for libz.so on IRIX and OSF1 [Reinholdtsen] 225- Use fdopen() (not _fdopen()) for Interix in zutil.h [B�ck] 226- Add some FAQ entries about the contrib directory 227- Update the MVS question in the FAQ 228- Avoid extraneous reads after EOF in gzio.c [Brown] 229- Correct spelling of "successfully" in gzio.c [Randers-Pehrson] 230- Add comments to zlib.h about gzerror() usage [Brown] 231- Set extra flags in gzip header in gzopen() like deflate() does 232- Make configure options more compatible with double-dash conventions 233 [Weigelt] 234- Clean up compilation under Solaris SunStudio cc [Rowe, Reinholdtsen] 235- Fix uninstall target in Makefile.in [Truta] 236- Add pkgconfig support [Weigelt] 237- Use $(DESTDIR) macro in Makefile.in [Reinholdtsen, Weigelt] 238- Replace set_data_type() with a more accurate detect_data_type() in 239 trees.c, according to the txtvsbin.txt document [Truta] 240- Swap the order of #include <stdio.h> and #include "zlib.h" in 241 gzio.c, example.c and minigzip.c [Truta] 242- Shut up annoying VS2005 warnings about standard C deprecation [Rowe, 243 Truta] (where?) 244- Fix target "clean" from win32/Makefile.bor [Truta] 245- Create .pdb and .manifest files in win32/makefile.msc [Ziegler, Rowe] 246- Update zlib www home address in win32/DLL_FAQ.txt [Truta] 247- Update contrib/masmx86/inffas32.asm for VS2005 [Vollant, Van Wassenhove] 248- Enable browse info in the "Debug" and "ASM Debug" configurations in 249 the Visual C++ 6 project, and set (non-ASM) "Debug" as default [Truta] 250- Add pkgconfig support [Weigelt] 251- Add ZLIB_VER_MAJOR, ZLIB_VER_MINOR and ZLIB_VER_REVISION in zlib.h, 252 for use in win32/zlib1.rc [Polushin, Rowe, Truta] 253- Add a document that explains the new text detection scheme to 254 doc/txtvsbin.txt [Truta] 255- Add rfc1950.txt, rfc1951.txt and rfc1952.txt to doc/ [Truta] 256- Move algorithm.txt into doc/ [Truta] 257- Synchronize FAQ with website 258- Fix compressBound(), was low for some pathological cases [Fearnley] 259- Take into account wrapper variations in deflateBound() 260- Set examples/zpipe.c input and output to binary mode for Windows 261- Update examples/zlib_how.html with new zpipe.c (also web site) 262- Fix some warnings in examples/gzlog.c and examples/zran.c (it seems 263 that gcc became pickier in 4.0) 264- Add zlib.map for Linux: "All symbols from zlib-1.1.4 remain 265 un-versioned, the patch adds versioning only for symbols introduced in 266 zlib-1.2.0 or later. It also declares as local those symbols which are 267 not designed to be exported." [Levin] 268- Update Z_PREFIX list in zconf.in.h, add --zprefix option to configure 269- Do not initialize global static by default in trees.c, add a response 270 NO_INIT_GLOBAL_POINTERS to initialize them if needed [Marquess] 271- Don't use strerror() in gzio.c under WinCE [Yakimov] 272- Don't use errno.h in zutil.h under WinCE [Yakimov] 273- Move arguments for AR to its usage to allow replacing ar [Marot] 274- Add HAVE_VISIBILITY_PRAGMA in zconf.in.h for Mozilla [Randers-Pehrson] 275- Improve inflateInit() and inflateInit2() documentation 276- Fix structure size comment in inflate.h 277- Change configure help option from --h* to --help [Santos] 278 279Changes in 1.2.3 (18 July 2005) 280- Apply security vulnerability fixes to contrib/infback9 as well 281- Clean up some text files (carriage returns, trailing space) 282- Update testzlib, vstudio, masmx64, and masmx86 in contrib [Vollant] 283 284Changes in 1.2.2.4 (11 July 2005) 285- Add inflatePrime() function for starting inflation at bit boundary 286- Avoid some Visual C warnings in deflate.c 287- Avoid more silly Visual C warnings in inflate.c and inftrees.c for 64-bit 288 compile 289- Fix some spelling errors in comments [Betts] 290- Correct inflateInit2() error return documentation in zlib.h 291- Add zran.c example of compressed data random access to examples 292 directory, shows use of inflatePrime() 293- Fix cast for assignments to strm->state in inflate.c and infback.c 294- Fix zlibCompileFlags() in zutil.c to use 1L for long shifts [Oberhumer] 295- Move declarations of gf2 functions to right place in crc32.c [Oberhumer] 296- Add cast in trees.c t avoid a warning [Oberhumer] 297- Avoid some warnings in fitblk.c, gun.c, gzjoin.c in examples [Oberhumer] 298- Update make_vms.com [Zinser] 299- Initialize state->write in inflateReset() since copied in inflate_fast() 300- Be more strict on incomplete code sets in inflate_table() and increase 301 ENOUGH and MAXD -- this repairs a possible security vulnerability for 302 invalid inflate input. Thanks to Tavis Ormandy and Markus Oberhumer for 303 discovering the vulnerability and providing test cases. 304- Add ia64 support to configure for HP-UX [Smith] 305- Add error return to gzread() for format or i/o error [Levin] 306- Use malloc.h for OS/2 [Necasek] 307 308Changes in 1.2.2.3 (27 May 2005) 309- Replace 1U constants in inflate.c and inftrees.c for 64-bit compile 310- Typecast fread() return values in gzio.c [Vollant] 311- Remove trailing space in minigzip.c outmode (VC++ can't deal with it) 312- Fix crc check bug in gzread() after gzungetc() [Heiner] 313- Add the deflateTune() function to adjust internal compression parameters 314- Add a fast gzip decompressor, gun.c, to examples (use of inflateBack) 315- Remove an incorrect assertion in examples/zpipe.c 316- Add C++ wrapper in infback9.h [Donais] 317- Fix bug in inflateCopy() when decoding fixed codes 318- Note in zlib.h how much deflateSetDictionary() actually uses 319- Remove USE_DICT_HEAD in deflate.c (would mess up inflate if used) 320- Add _WIN32_WCE to define WIN32 in zconf.in.h [Spencer] 321- Don't include stderr.h or errno.h for _WIN32_WCE in zutil.h [Spencer] 322- Add gzdirect() function to indicate transparent reads 323- Update contrib/minizip [Vollant] 324- Fix compilation of deflate.c when both ASMV and FASTEST [Oberhumer] 325- Add casts in crc32.c to avoid warnings [Oberhumer] 326- Add contrib/masmx64 [Vollant] 327- Update contrib/asm586, asm686, masmx86, testzlib, vstudio [Vollant] 328 329Changes in 1.2.2.2 (30 December 2004) 330- Replace structure assignments in deflate.c and inflate.c with zmemcpy to 331 avoid implicit memcpy calls (portability for no-library compilation) 332- Increase sprintf() buffer size in gzdopen() to allow for large numbers 333- Add INFLATE_STRICT to check distances against zlib header 334- Improve WinCE errno handling and comments [Chang] 335- Remove comment about no gzip header processing in FAQ 336- Add Z_FIXED strategy option to deflateInit2() to force fixed trees 337- Add updated make_vms.com [Coghlan], update README 338- Create a new "examples" directory, move gzappend.c there, add zpipe.c, 339 fitblk.c, gzlog.[ch], gzjoin.c, and zlib_how.html. 340- Add FAQ entry and comments in deflate.c on uninitialized memory access 341- Add Solaris 9 make options in configure [Gilbert] 342- Allow strerror() usage in gzio.c for STDC 343- Fix DecompressBuf in contrib/delphi/ZLib.pas [ManChesTer] 344- Update contrib/masmx86/inffas32.asm and gvmat32.asm [Vollant] 345- Use z_off_t for adler32_combine() and crc32_combine() lengths 346- Make adler32() much faster for small len 347- Use OS_CODE in deflate() default gzip header 348 349Changes in 1.2.2.1 (31 October 2004) 350- Allow inflateSetDictionary() call for raw inflate 351- Fix inflate header crc check bug for file names and comments 352- Add deflateSetHeader() and gz_header structure for custom gzip headers 353- Add inflateGetheader() to retrieve gzip headers 354- Add crc32_combine() and adler32_combine() functions 355- Add alloc_func, free_func, in_func, out_func to Z_PREFIX list 356- Use zstreamp consistently in zlib.h (inflate_back functions) 357- Remove GUNZIP condition from definition of inflate_mode in inflate.h 358 and in contrib/inflate86/inffast.S [Truta, Anderson] 359- Add support for AMD64 in contrib/inflate86/inffas86.c [Anderson] 360- Update projects/README.projects and projects/visualc6 [Truta] 361- Update win32/DLL_FAQ.txt [Truta] 362- Avoid warning under NO_GZCOMPRESS in gzio.c; fix typo [Truta] 363- Deprecate Z_ASCII; use Z_TEXT instead [Truta] 364- Use a new algorithm for setting strm->data_type in trees.c [Truta] 365- Do not define an exit() prototype in zutil.c unless DEBUG defined 366- Remove prototype of exit() from zutil.c, example.c, minigzip.c [Truta] 367- Add comment in zlib.h for Z_NO_FLUSH parameter to deflate() 368- Fix Darwin build version identification [Peterson] 369 370Changes in 1.2.2 (3 October 2004) 371- Update zlib.h comments on gzip in-memory processing 372- Set adler to 1 in inflateReset() to support Java test suite [Walles] 373- Add contrib/dotzlib [Ravn] 374- Update win32/DLL_FAQ.txt [Truta] 375- Update contrib/minizip [Vollant] 376- Move contrib/visual-basic.txt to old/ [Truta] 377- Fix assembler builds in projects/visualc6/ [Truta] 378 379Changes in 1.2.1.2 (9 September 2004) 380- Update INDEX file 381- Fix trees.c to update strm->data_type (no one ever noticed!) 382- Fix bug in error case in inflate.c, infback.c, and infback9.c [Brown] 383- Add "volatile" to crc table flag declaration (for DYNAMIC_CRC_TABLE) 384- Add limited multitasking protection to DYNAMIC_CRC_TABLE 385- Add NO_vsnprintf for VMS in zutil.h [Mozilla] 386- Don't declare strerror() under VMS [Mozilla] 387- Add comment to DYNAMIC_CRC_TABLE to use get_crc_table() to initialize 388- Update contrib/ada [Anisimkov] 389- Update contrib/minizip [Vollant] 390- Fix configure to not hardcode directories for Darwin [Peterson] 391- Fix gzio.c to not return error on empty files [Brown] 392- Fix indentation; update version in contrib/delphi/ZLib.pas and 393 contrib/pascal/zlibpas.pas [Truta] 394- Update mkasm.bat in contrib/masmx86 [Truta] 395- Update contrib/untgz [Truta] 396- Add projects/README.projects [Truta] 397- Add project for MS Visual C++ 6.0 in projects/visualc6 [Cadieux, Truta] 398- Update win32/DLL_FAQ.txt [Truta] 399- Update list of Z_PREFIX symbols in zconf.h [Randers-Pehrson, Truta] 400- Remove an unnecessary assignment to curr in inftrees.c [Truta] 401- Add OS/2 to exe builds in configure [Poltorak] 402- Remove err dummy parameter in zlib.h [Kientzle] 403 404Changes in 1.2.1.1 (9 January 2004) 405- Update email address in README 406- Several FAQ updates 407- Fix a big fat bug in inftrees.c that prevented decoding valid 408 dynamic blocks with only literals and no distance codes -- 409 Thanks to "Hot Emu" for the bug report and sample file 410- Add a note to puff.c on no distance codes case. 411 412Changes in 1.2.1 (17 November 2003) 413- Remove a tab in contrib/gzappend/gzappend.c 414- Update some interfaces in contrib for new zlib functions 415- Update zlib version number in some contrib entries 416- Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta] 417- Support shared libraries on Hurd and KFreeBSD [Brown] 418- Fix error in NO_DIVIDE option of adler32.c 419 420Changes in 1.2.0.8 (4 November 2003) 421- Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas 422- Add experimental NO_DIVIDE #define in adler32.c 423 - Possibly faster on some processors (let me know if it is) 424- Correct Z_BLOCK to not return on first inflate call if no wrap 425- Fix strm->data_type on inflate() return to correctly indicate EOB 426- Add deflatePrime() function for appending in the middle of a byte 427- Add contrib/gzappend for an example of appending to a stream 428- Update win32/DLL_FAQ.txt [Truta] 429- Delete Turbo C comment in README [Truta] 430- Improve some indentation in zconf.h [Truta] 431- Fix infinite loop on bad input in configure script [Church] 432- Fix gzeof() for concatenated gzip files [Johnson] 433- Add example to contrib/visual-basic.txt [Michael B.] 434- Add -p to mkdir's in Makefile.in [vda] 435- Fix configure to properly detect presence or lack of printf functions 436- Add AS400 support [Monnerat] 437- Add a little Cygwin support [Wilson] 438 439Changes in 1.2.0.7 (21 September 2003) 440- Correct some debug formats in contrib/infback9 441- Cast a type in a debug statement in trees.c 442- Change search and replace delimiter in configure from % to # [Beebe] 443- Update contrib/untgz to 0.2 with various fixes [Truta] 444- Add build support for Amiga [Nikl] 445- Remove some directories in old that have been updated to 1.2 446- Add dylib building for Mac OS X in configure and Makefile.in 447- Remove old distribution stuff from Makefile 448- Update README to point to DLL_FAQ.txt, and add comment on Mac OS X 449- Update links in README 450 451Changes in 1.2.0.6 (13 September 2003) 452- Minor FAQ updates 453- Update contrib/minizip to 1.00 [Vollant] 454- Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta] 455- Update POSTINC comment for 68060 [Nikl] 456- Add contrib/infback9 with deflate64 decoding (unsupported) 457- For MVS define NO_vsnprintf and undefine FAR [van Burik] 458- Add pragma for fdopen on MVS [van Burik] 459 460Changes in 1.2.0.5 (8 September 2003) 461- Add OF to inflateBackEnd() declaration in zlib.h 462- Remember start when using gzdopen in the middle of a file 463- Use internal off_t counters in gz* functions to properly handle seeks 464- Perform more rigorous check for distance-too-far in inffast.c 465- Add Z_BLOCK flush option to return from inflate at block boundary 466- Set strm->data_type on return from inflate 467 - Indicate bits unused, if at block boundary, and if in last block 468- Replace size_t with ptrdiff_t in crc32.c, and check for correct size 469- Add condition so old NO_DEFLATE define still works for compatibility 470- FAQ update regarding the Windows DLL [Truta] 471- INDEX update: add qnx entry, remove aix entry [Truta] 472- Install zlib.3 into mandir [Wilson] 473- Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta] 474- Adapt the zlib interface to the new DLL convention guidelines [Truta] 475- Introduce ZLIB_WINAPI macro to allow the export of functions using 476 the WINAPI calling convention, for Visual Basic [Vollant, Truta] 477- Update msdos and win32 scripts and makefiles [Truta] 478- Export symbols by name, not by ordinal, in win32/zlib.def [Truta] 479- Add contrib/ada [Anisimkov] 480- Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta] 481- Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant] 482- Add contrib/masm686 [Truta] 483- Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm 484 [Truta, Vollant] 485- Update contrib/delphi; rename to contrib/pascal; add example [Truta] 486- Remove contrib/delphi2; add a new contrib/delphi [Truta] 487- Avoid inclusion of the nonstandard <memory.h> in contrib/iostream, 488 and fix some method prototypes [Truta] 489- Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip 490 [Truta] 491- Avoid the use of backslash (\) in contrib/minizip [Vollant] 492- Fix file time handling in contrib/untgz; update makefiles [Truta] 493- Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines 494 [Vollant] 495- Remove contrib/vstudio/vc15_16 [Vollant] 496- Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta] 497- Update README.contrib [Truta] 498- Invert the assignment order of match_head and s->prev[...] in 499 INSERT_STRING [Truta] 500- Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings 501 [Truta] 502- Compare function pointers with 0, not with NULL or Z_NULL [Truta] 503- Fix prototype of syncsearch in inflate.c [Truta] 504- Introduce ASMINF macro to be enabled when using an ASM implementation 505 of inflate_fast [Truta] 506- Change NO_DEFLATE to NO_GZCOMPRESS [Truta] 507- Modify test_gzio in example.c to take a single file name as a 508 parameter [Truta] 509- Exit the example.c program if gzopen fails [Truta] 510- Add type casts around strlen in example.c [Truta] 511- Remove casting to sizeof in minigzip.c; give a proper type 512 to the variable compared with SUFFIX_LEN [Truta] 513- Update definitions of STDC and STDC99 in zconf.h [Truta] 514- Synchronize zconf.h with the new Windows DLL interface [Truta] 515- Use SYS16BIT instead of __32BIT__ to distinguish between 516 16- and 32-bit platforms [Truta] 517- Use far memory allocators in small 16-bit memory models for 518 Turbo C [Truta] 519- Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in 520 zlibCompileFlags [Truta] 521- Cygwin has vsnprintf [Wilson] 522- In Windows16, OS_CODE is 0, as in MSDOS [Truta] 523- In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson] 524 525Changes in 1.2.0.4 (10 August 2003) 526- Minor FAQ updates 527- Be more strict when checking inflateInit2's windowBits parameter 528- Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well 529- Add gzip wrapper option to deflateInit2 using windowBits 530- Add updated QNX rule in configure and qnx directory [Bonnefoy] 531- Make inflate distance-too-far checks more rigorous 532- Clean up FAR usage in inflate 533- Add casting to sizeof() in gzio.c and minigzip.c 534 535Changes in 1.2.0.3 (19 July 2003) 536- Fix silly error in gzungetc() implementation [Vollant] 537- Update contrib/minizip and contrib/vstudio [Vollant] 538- Fix printf format in example.c 539- Correct cdecl support in zconf.in.h [Anisimkov] 540- Minor FAQ updates 541 542Changes in 1.2.0.2 (13 July 2003) 543- Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons 544- Attempt to avoid warnings in crc32.c for pointer-int conversion 545- Add AIX to configure, remove aix directory [Bakker] 546- Add some casts to minigzip.c 547- Improve checking after insecure sprintf() or vsprintf() calls 548- Remove #elif's from crc32.c 549- Change leave label to inf_leave in inflate.c and infback.c to avoid 550 library conflicts 551- Remove inflate gzip decoding by default--only enable gzip decoding by 552 special request for stricter backward compatibility 553- Add zlibCompileFlags() function to return compilation information 554- More typecasting in deflate.c to avoid warnings 555- Remove leading underscore from _Capital #defines [Truta] 556- Fix configure to link shared library when testing 557- Add some Windows CE target adjustments [Mai] 558- Remove #define ZLIB_DLL in zconf.h [Vollant] 559- Add zlib.3 [Rodgers] 560- Update RFC URL in deflate.c and algorithm.txt [Mai] 561- Add zlib_dll_FAQ.txt to contrib [Truta] 562- Add UL to some constants [Truta] 563- Update minizip and vstudio [Vollant] 564- Remove vestigial NEED_DUMMY_RETURN from zconf.in.h 565- Expand use of NO_DUMMY_DECL to avoid all dummy structures 566- Added iostream3 to contrib [Schwardt] 567- Replace rewind() with fseek() for WinCE [Truta] 568- Improve setting of zlib format compression level flags 569 - Report 0 for huffman and rle strategies and for level == 0 or 1 570 - Report 2 only for level == 6 571- Only deal with 64K limit when necessary at compile time [Truta] 572- Allow TOO_FAR check to be turned off at compile time [Truta] 573- Add gzclearerr() function [Souza] 574- Add gzungetc() function 575 576Changes in 1.2.0.1 (17 March 2003) 577- Add Z_RLE strategy for run-length encoding [Truta] 578 - When Z_RLE requested, restrict matches to distance one 579 - Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE 580- Correct FASTEST compilation to allow level == 0 581- Clean up what gets compiled for FASTEST 582- Incorporate changes to zconf.in.h [Vollant] 583 - Refine detection of Turbo C need for dummy returns 584 - Refine ZLIB_DLL compilation 585 - Include additional header file on VMS for off_t typedef 586- Try to use _vsnprintf where it supplants vsprintf [Vollant] 587- Add some casts in inffast.c 588- Enchance comments in zlib.h on what happens if gzprintf() tries to 589 write more than 4095 bytes before compression 590- Remove unused state from inflateBackEnd() 591- Remove exit(0) from minigzip.c, example.c 592- Get rid of all those darn tabs 593- Add "check" target to Makefile.in that does the same thing as "test" 594- Add "mostlyclean" and "maintainer-clean" targets to Makefile.in 595- Update contrib/inflate86 [Anderson] 596- Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant] 597- Add msdos and win32 directories with makefiles [Truta] 598- More additions and improvements to the FAQ 599 600Changes in 1.2.0 (9 March 2003) 601- New and improved inflate code 602 - About 20% faster 603 - Does not allocate 32K window unless and until needed 604 - Automatically detects and decompresses gzip streams 605 - Raw inflate no longer needs an extra dummy byte at end 606 - Added inflateBack functions using a callback interface--even faster 607 than inflate, useful for file utilities (gzip, zip) 608 - Added inflateCopy() function to record state for random access on 609 externally generated deflate streams (e.g. in gzip files) 610 - More readable code (I hope) 611- New and improved crc32() 612 - About 50% faster, thanks to suggestions from Rodney Brown 613- Add deflateBound() and compressBound() functions 614- Fix memory leak in deflateInit2() 615- Permit setting dictionary for raw deflate (for parallel deflate) 616- Fix const declaration for gzwrite() 617- Check for some malloc() failures in gzio.c 618- Fix bug in gzopen() on single-byte file 0x1f 619- Fix bug in gzread() on concatenated file with 0x1f at end of buffer 620 and next buffer doesn't start with 0x8b 621- Fix uncompress() to return Z_DATA_ERROR on truncated input 622- Free memory at end of example.c 623- Remove MAX #define in trees.c (conflicted with some libraries) 624- Fix static const's in deflate.c, gzio.c, and zutil.[ch] 625- Declare malloc() and free() in gzio.c if STDC not defined 626- Use malloc() instead of calloc() in zutil.c if int big enough 627- Define STDC for AIX 628- Add aix/ with approach for compiling shared library on AIX 629- Add HP-UX support for shared libraries in configure 630- Add OpenUNIX support for shared libraries in configure 631- Use $cc instead of gcc to build shared library 632- Make prefix directory if needed when installing 633- Correct Macintosh avoidance of typedef Byte in zconf.h 634- Correct Turbo C memory allocation when under Linux 635- Use libz.a instead of -lz in Makefile (assure use of compiled library) 636- Update configure to check for snprintf or vsnprintf functions and their 637 return value, warn during make if using an insecure function 638- Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that 639 is lost when library is used--resolution is to build new zconf.h 640- Documentation improvements (in zlib.h): 641 - Document raw deflate and inflate 642 - Update RFCs URL 643 - Point out that zlib and gzip formats are different 644 - Note that Z_BUF_ERROR is not fatal 645 - Document string limit for gzprintf() and possible buffer overflow 646 - Note requirement on avail_out when flushing 647 - Note permitted values of flush parameter of inflate() 648- Add some FAQs (and even answers) to the FAQ 649- Add contrib/inflate86/ for x86 faster inflate 650- Add contrib/blast/ for PKWare Data Compression Library decompression 651- Add contrib/puff/ simple inflate for deflate format description 652 653Changes in 1.1.4 (11 March 2002) 654- ZFREE was repeated on same allocation on some error conditions. 655 This creates a security problem described in 656 http://www.zlib.org/advisory-2002-03-11.txt 657- Returned incorrect error (Z_MEM_ERROR) on some invalid data 658- Avoid accesses before window for invalid distances with inflate window 659 less than 32K. 660- force windowBits > 8 to avoid a bug in the encoder for a window size 661 of 256 bytes. (A complete fix will be available in 1.1.5). 662 663Changes in 1.1.3 (9 July 1998) 664- fix "an inflate input buffer bug that shows up on rare but persistent 665 occasions" (Mark) 666- fix gzread and gztell for concatenated .gz files (Didier Le Botlan) 667- fix gzseek(..., SEEK_SET) in write mode 668- fix crc check after a gzeek (Frank Faubert) 669- fix miniunzip when the last entry in a zip file is itself a zip file 670 (J Lillge) 671- add contrib/asm586 and contrib/asm686 (Brian Raiter) 672 See http://www.muppetlabs.com/~breadbox/software/assembly.html 673- add support for Delphi 3 in contrib/delphi (Bob Dellaca) 674- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti) 675- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren) 676- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks) 677- added a FAQ file 678 679- Support gzdopen on Mac with Metrowerks (Jason Linhart) 680- Do not redefine Byte on Mac (Brad Pettit & Jason Linhart) 681- define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young) 682- avoid some warnings with Borland C (Tom Tanner) 683- fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant) 684- emulate utime() for WIN32 in contrib/untgz (Gilles Vollant) 685- allow several arguments to configure (Tim Mooney, Frodo Looijaard) 686- use libdir and includedir in Makefile.in (Tim Mooney) 687- support shared libraries on OSF1 V4 (Tim Mooney) 688- remove so_locations in "make clean" (Tim Mooney) 689- fix maketree.c compilation error (Glenn, Mark) 690- Python interface to zlib now in Python 1.5 (Jeremy Hylton) 691- new Makefile.riscos (Rich Walker) 692- initialize static descriptors in trees.c for embedded targets (Nick Smith) 693- use "foo-gz" in example.c for RISCOS and VMS (Nick Smith) 694- add the OS/2 files in Makefile.in too (Andrew Zabolotny) 695- fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane) 696- fix maketree.c to allow clean compilation of inffixed.h (Mark) 697- fix parameter check in deflateCopy (Gunther Nikl) 698- cleanup trees.c, use compressed_len only in debug mode (Christian Spieler) 699- Many portability patches by Christian Spieler: 700 . zutil.c, zutil.h: added "const" for zmem* 701 . Make_vms.com: fixed some typos 702 . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists 703 . msdos/Makefile.msc: remove "default rtl link library" info from obj files 704 . msdos/Makefile.*: use model-dependent name for the built zlib library 705 . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc: 706 new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT) 707- use define instead of typedef for Bytef also for MSC small/medium (Tom Lane) 708- replace __far with _far for better portability (Christian Spieler, Tom Lane) 709- fix test for errno.h in configure (Tim Newsham) 710 711Changes in 1.1.2 (19 March 98) 712- added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant) 713 See http://www.winimage.com/zLibDll/unzip.html 714- preinitialize the inflate tables for fixed codes, to make the code 715 completely thread safe (Mark) 716- some simplifications and slight speed-up to the inflate code (Mark) 717- fix gzeof on non-compressed files (Allan Schrum) 718- add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs) 719- use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn) 720- added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny) 721- add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori) 722- do not wrap extern "C" around system includes (Tom Lane) 723- mention zlib binding for TCL in README (Andreas Kupries) 724- added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert) 725- allow "make install prefix=..." even after configure (Glenn Randers-Pehrson) 726- allow "configure --prefix $HOME" (Tim Mooney) 727- remove warnings in example.c and gzio.c (Glenn Randers-Pehrson) 728- move Makefile.sas to amiga/Makefile.sas 729 730Changes in 1.1.1 (27 Feb 98) 731- fix macros _tr_tally_* in deflate.h for debug mode (Glenn Randers-Pehrson) 732- remove block truncation heuristic which had very marginal effect for zlib 733 (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the 734 compression ratio on some files. This also allows inlining _tr_tally for 735 matches in deflate_slow. 736- added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier) 737 738Changes in 1.1.0 (24 Feb 98) 739- do not return STREAM_END prematurely in inflate (John Bowler) 740- revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler) 741- compile with -DFASTEST to get compression code optimized for speed only 742- in minigzip, try mmap'ing the input file first (Miguel Albrecht) 743- increase size of I/O buffers in minigzip.c and gzio.c (not a big gain 744 on Sun but significant on HP) 745 746- add a pointer to experimental unzip library in README (Gilles Vollant) 747- initialize variable gcc in configure (Chris Herborth) 748 749Changes in 1.0.9 (17 Feb 1998) 750- added gzputs and gzgets functions 751- do not clear eof flag in gzseek (Mark Diekhans) 752- fix gzseek for files in transparent mode (Mark Diekhans) 753- do not assume that vsprintf returns the number of bytes written (Jens Krinke) 754- replace EXPORT with ZEXPORT to avoid conflict with other programs 755- added compress2 in zconf.h, zlib.def, zlib.dnt 756- new asm code from Gilles Vollant in contrib/asm386 757- simplify the inflate code (Mark): 758 . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new() 759 . ZALLOC the length list in inflate_trees_fixed() instead of using stack 760 . ZALLOC the value area for huft_build() instead of using stack 761 . Simplify Z_FINISH check in inflate() 762 763- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8 764- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi) 765- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with 766 the declaration of FAR (Gilles VOllant) 767- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann) 768- read_buf buf parameter of type Bytef* instead of charf* 769- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout) 770- do not redeclare unlink in minigzip.c for WIN32 (John Bowler) 771- fix check for presence of directories in "make install" (Ian Willis) 772 773Changes in 1.0.8 (27 Jan 1998) 774- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant) 775- fix gzgetc and gzputc for big endian systems (Markus Oberhumer) 776- added compress2() to allow setting the compression level 777- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong) 778- use constant arrays for the static trees in trees.c instead of computing 779 them at run time (thanks to Ken Raeburn for this suggestion). To create 780 trees.h, compile with GEN_TREES_H and run "make test". 781- check return code of example in "make test" and display result 782- pass minigzip command line options to file_compress 783- simplifying code of inflateSync to avoid gcc 2.8 bug 784 785- support CC="gcc -Wall" in configure -s (QingLong) 786- avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn) 787- fix test for shared library support to avoid compiler warnings 788- zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant) 789- check for TARGET_OS_MAC in addition to MACOS (Brad Pettit) 790- do not use fdopen for Metrowerks on Mac (Brad Pettit)) 791- add checks for gzputc and gzputc in example.c 792- avoid warnings in gzio.c and deflate.c (Andreas Kleinert) 793- use const for the CRC table (Ken Raeburn) 794- fixed "make uninstall" for shared libraries 795- use Tracev instead of Trace in infblock.c 796- in example.c use correct compressed length for test_sync 797- suppress +vnocompatwarnings in configure for HPUX (not always supported) 798 799Changes in 1.0.7 (20 Jan 1998) 800- fix gzseek which was broken in write mode 801- return error for gzseek to negative absolute position 802- fix configure for Linux (Chun-Chung Chen) 803- increase stack space for MSC (Tim Wegner) 804- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant) 805- define EXPORTVA for gzprintf (Gilles Vollant) 806- added man page zlib.3 (Rick Rodgers) 807- for contrib/untgz, fix makedir() and improve Makefile 808 809- check gzseek in write mode in example.c 810- allocate extra buffer for seeks only if gzseek is actually called 811- avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant) 812- add inflateSyncPoint in zconf.h 813- fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def 814 815Changes in 1.0.6 (19 Jan 1998) 816- add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and 817 gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code) 818- Fix a deflate bug occurring only with compression level 0 (thanks to 819 Andy Buckler for finding this one). 820- In minigzip, pass transparently also the first byte for .Z files. 821- return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress() 822- check Z_FINISH in inflate (thanks to Marc Schluper) 823- Implement deflateCopy (thanks to Adam Costello) 824- make static libraries by default in configure, add --shared option. 825- move MSDOS or Windows specific files to directory msdos 826- suppress the notion of partial flush to simplify the interface 827 (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4) 828- suppress history buffer provided by application to simplify the interface 829 (this feature was not implemented anyway in 1.0.4) 830- next_in and avail_in must be initialized before calling inflateInit or 831 inflateInit2 832- add EXPORT in all exported functions (for Windows DLL) 833- added Makefile.nt (thanks to Stephen Williams) 834- added the unsupported "contrib" directory: 835 contrib/asm386/ by Gilles Vollant <info@winimage.com> 836 386 asm code replacing longest_match(). 837 contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu> 838 A C++ I/O streams interface to the zlib gz* functions 839 contrib/iostream2/ by Tyge L�vset <Tyge.Lovset@cmr.no> 840 Another C++ I/O streams interface 841 contrib/untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es> 842 A very simple tar.gz file extractor using zlib 843 contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl> 844 How to use compress(), uncompress() and the gz* functions from VB. 845- pass params -f (filtered data), -h (huffman only), -1 to -9 (compression 846 level) in minigzip (thanks to Tom Lane) 847 848- use const for rommable constants in deflate 849- added test for gzseek and gztell in example.c 850- add undocumented function inflateSyncPoint() (hack for Paul Mackerras) 851- add undocumented function zError to convert error code to string 852 (for Tim Smithers) 853- Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code. 854- Use default memcpy for Symantec MSDOS compiler. 855- Add EXPORT keyword for check_func (needed for Windows DLL) 856- add current directory to LD_LIBRARY_PATH for "make test" 857- create also a link for libz.so.1 858- added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura) 859- use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX) 860- added -soname for Linux in configure (Chun-Chung Chen, 861- assign numbers to the exported functions in zlib.def (for Windows DLL) 862- add advice in zlib.h for best usage of deflateSetDictionary 863- work around compiler bug on Atari (cast Z_NULL in call of s->checkfn) 864- allow compilation with ANSI keywords only enabled for TurboC in large model 865- avoid "versionString"[0] (Borland bug) 866- add NEED_DUMMY_RETURN for Borland 867- use variable z_verbose for tracing in debug mode (L. Peter Deutsch). 868- allow compilation with CC 869- defined STDC for OS/2 (David Charlap) 870- limit external names to 8 chars for MVS (Thomas Lund) 871- in minigzip.c, use static buffers only for 16-bit systems 872- fix suffix check for "minigzip -d foo.gz" 873- do not return an error for the 2nd of two consecutive gzflush() (Felix Lee) 874- use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau) 875- added makelcc.bat for lcc-win32 (Tom St Denis) 876- in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe) 877- Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion. 878- check for unistd.h in configure (for off_t) 879- remove useless check parameter in inflate_blocks_free 880- avoid useless assignment of s->check to itself in inflate_blocks_new 881- do not flush twice in gzclose (thanks to Ken Raeburn) 882- rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h 883- use NO_ERRNO_H instead of enumeration of operating systems with errno.h 884- work around buggy fclose on pipes for HP/UX 885- support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson) 886- fix configure if CC is already equal to gcc 887 888Changes in 1.0.5 (3 Jan 98) 889- Fix inflate to terminate gracefully when fed corrupted or invalid data 890- Use const for rommable constants in inflate 891- Eliminate memory leaks on error conditions in inflate 892- Removed some vestigial code in inflate 893- Update web address in README 894 895Changes in 1.0.4 (24 Jul 96) 896- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF 897 bit, so the decompressor could decompress all the correct data but went 898 on to attempt decompressing extra garbage data. This affected minigzip too. 899- zlibVersion and gzerror return const char* (needed for DLL) 900- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno) 901- use z_error only for DEBUG (avoid problem with DLLs) 902 903Changes in 1.0.3 (2 Jul 96) 904- use z_streamp instead of z_stream *, which is now a far pointer in MSDOS 905 small and medium models; this makes the library incompatible with previous 906 versions for these models. (No effect in large model or on other systems.) 907- return OK instead of BUF_ERROR if previous deflate call returned with 908 avail_out as zero but there is nothing to do 909- added memcmp for non STDC compilers 910- define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly) 911- define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO) 912- better check for 16-bit mode MSC (avoids problem with Symantec) 913 914Changes in 1.0.2 (23 May 96) 915- added Windows DLL support 916- added a function zlibVersion (for the DLL support) 917- fixed declarations using Bytef in infutil.c (pb with MSDOS medium model) 918- Bytef is define's instead of typedef'd only for Borland C 919- avoid reading uninitialized memory in example.c 920- mention in README that the zlib format is now RFC1950 921- updated Makefile.dj2 922- added algorithm.doc 923 924Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion] 925- fix array overlay in deflate.c which sometimes caused bad compressed data 926- fix inflate bug with empty stored block 927- fix MSDOS medium model which was broken in 0.99 928- fix deflateParams() which could generated bad compressed data. 929- Bytef is define'd instead of typedef'ed (work around Borland bug) 930- added an INDEX file 931- new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32), 932 Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas) 933- speed up adler32 for modern machines without auto-increment 934- added -ansi for IRIX in configure 935- static_init_done in trees.c is an int 936- define unlink as delete for VMS 937- fix configure for QNX 938- add configure branch for SCO and HPUX 939- avoid many warnings (unused variables, dead assignments, etc...) 940- no fdopen for BeOS 941- fix the Watcom fix for 32 bit mode (define FAR as empty) 942- removed redefinition of Byte for MKWERKS 943- work around an MWKERKS bug (incorrect merge of all .h files) 944 945Changes in 0.99 (27 Jan 96) 946- allow preset dictionary shared between compressor and decompressor 947- allow compression level 0 (no compression) 948- add deflateParams in zlib.h: allow dynamic change of compression level 949 and compression strategy. 950- test large buffers and deflateParams in example.c 951- add optional "configure" to build zlib as a shared library 952- suppress Makefile.qnx, use configure instead 953- fixed deflate for 64-bit systems (detected on Cray) 954- fixed inflate_blocks for 64-bit systems (detected on Alpha) 955- declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2) 956- always return Z_BUF_ERROR when deflate() has nothing to do 957- deflateInit and inflateInit are now macros to allow version checking 958- prefix all global functions and types with z_ with -DZ_PREFIX 959- make falloc completely reentrant (inftrees.c) 960- fixed very unlikely race condition in ct_static_init 961- free in reverse order of allocation to help memory manager 962- use zlib-1.0/* instead of zlib/* inside the tar.gz 963- make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith 964 -Wconversion -Wstrict-prototypes -Wmissing-prototypes" 965- allow gzread on concatenated .gz files 966- deflateEnd now returns Z_DATA_ERROR if it was premature 967- deflate is finally (?) fully deterministic (no matches beyond end of input) 968- Document Z_SYNC_FLUSH 969- add uninstall in Makefile 970- Check for __cpluplus in zlib.h 971- Better test in ct_align for partial flush 972- avoid harmless warnings for Borland C++ 973- initialize hash_head in deflate.c 974- avoid warning on fdopen (gzio.c) for HP cc -Aa 975- include stdlib.h for STDC compilers 976- include errno.h for Cray 977- ignore error if ranlib doesn't exist 978- call ranlib twice for NeXTSTEP 979- use exec_prefix instead of prefix for libz.a 980- renamed ct_* as _tr_* to avoid conflict with applications 981- clear z->msg in inflateInit2 before any error return 982- initialize opaque in example.c, gzio.c, deflate.c and inflate.c 983- fixed typo in zconf.h (_GNUC__ => __GNUC__) 984- check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode) 985- fix typo in Make_vms.com (f$trnlnm -> f$getsyi) 986- in fcalloc, normalize pointer if size > 65520 bytes 987- don't use special fcalloc for 32 bit Borland C++ 988- use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc... 989- use Z_BINARY instead of BINARY 990- document that gzclose after gzdopen will close the file 991- allow "a" as mode in gzopen. 992- fix error checking in gzread 993- allow skipping .gz extra-field on pipes 994- added reference to Perl interface in README 995- put the crc table in FAR data (I dislike more and more the medium model :) 996- added get_crc_table 997- added a dimension to all arrays (Borland C can't count). 998- workaround Borland C bug in declaration of inflate_codes_new & inflate_fast 999- guard against multiple inclusion of *.h (for precompiled header on Mac) 1000- Watcom C pretends to be Microsoft C small model even in 32 bit mode. 1001- don't use unsized arrays to avoid silly warnings by Visual C++: 1002 warning C4746: 'inflate_mask' : unsized array treated as '__far' 1003 (what's wrong with far data in far model?). 1004- define enum out of inflate_blocks_state to allow compilation with C++ 1005 1006Changes in 0.95 (16 Aug 95) 1007- fix MSDOS small and medium model (now easier to adapt to any compiler) 1008- inlined send_bits 1009- fix the final (:-) bug for deflate with flush (output was correct but 1010 not completely flushed in rare occasions). 1011- default window size is same for compression and decompression 1012 (it's now sufficient to set MAX_WBITS in zconf.h). 1013- voidp -> voidpf and voidnp -> voidp (for consistency with other 1014 typedefs and because voidnp was not near in large model). 1015 1016Changes in 0.94 (13 Aug 95) 1017- support MSDOS medium model 1018- fix deflate with flush (could sometimes generate bad output) 1019- fix deflateReset (zlib header was incorrectly suppressed) 1020- added support for VMS 1021- allow a compression level in gzopen() 1022- gzflush now calls fflush 1023- For deflate with flush, flush even if no more input is provided. 1024- rename libgz.a as libz.a 1025- avoid complex expression in infcodes.c triggering Turbo C bug 1026- work around a problem with gcc on Alpha (in INSERT_STRING) 1027- don't use inline functions (problem with some gcc versions) 1028- allow renaming of Byte, uInt, etc... with #define. 1029- avoid warning about (unused) pointer before start of array in deflate.c 1030- avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c 1031- avoid reserved word 'new' in trees.c 1032 1033Changes in 0.93 (25 June 95) 1034- temporarily disable inline functions 1035- make deflate deterministic 1036- give enough lookahead for PARTIAL_FLUSH 1037- Set binary mode for stdin/stdout in minigzip.c for OS/2 1038- don't even use signed char in inflate (not portable enough) 1039- fix inflate memory leak for segmented architectures 1040 1041Changes in 0.92 (3 May 95) 1042- don't assume that char is signed (problem on SGI) 1043- Clear bit buffer when starting a stored block 1044- no memcpy on Pyramid 1045- suppressed inftest.c 1046- optimized fill_window, put longest_match inline for gcc 1047- optimized inflate on stored blocks. 1048- untabify all sources to simplify patches 1049 1050Changes in 0.91 (2 May 95) 1051- Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h 1052- Document the memory requirements in zconf.h 1053- added "make install" 1054- fix sync search logic in inflateSync 1055- deflate(Z_FULL_FLUSH) now works even if output buffer too short 1056- after inflateSync, don't scare people with just "lo world" 1057- added support for DJGPP 1058 1059Changes in 0.9 (1 May 95) 1060- don't assume that zalloc clears the allocated memory (the TurboC bug 1061 was Mark's bug after all :) 1062- let again gzread copy uncompressed data unchanged (was working in 0.71) 1063- deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented 1064- added a test of inflateSync in example.c 1065- moved MAX_WBITS to zconf.h because users might want to change that. 1066- document explicitly that zalloc(64K) on MSDOS must return a normalized 1067 pointer (zero offset) 1068- added Makefiles for Microsoft C, Turbo C, Borland C++ 1069- faster crc32() 1070 1071Changes in 0.8 (29 April 95) 1072- added fast inflate (inffast.c) 1073- deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this 1074 is incompatible with previous versions of zlib which returned Z_OK. 1075- work around a TurboC compiler bug (bad code for b << 0, see infutil.h) 1076 (actually that was not a compiler bug, see 0.81 above) 1077- gzread no longer reads one extra byte in certain cases 1078- In gzio destroy(), don't reference a freed structure 1079- avoid many warnings for MSDOS 1080- avoid the ERROR symbol which is used by MS Windows 1081 1082Changes in 0.71 (14 April 95) 1083- Fixed more MSDOS compilation problems :( There is still a bug with 1084 TurboC large model. 1085 1086Changes in 0.7 (14 April 95) 1087- Added full inflate support. 1088- Simplified the crc32() interface. The pre- and post-conditioning 1089 (one's complement) is now done inside crc32(). WARNING: this is 1090 incompatible with previous versions; see zlib.h for the new usage. 1091 1092Changes in 0.61 (12 April 95) 1093- workaround for a bug in TurboC. example and minigzip now work on MSDOS. 1094 1095Changes in 0.6 (11 April 95) 1096- added minigzip.c 1097- added gzdopen to reopen a file descriptor as gzFile 1098- added transparent reading of non-gziped files in gzread. 1099- fixed bug in gzread (don't read crc as data) 1100- fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose). 1101- don't allocate big arrays in the stack (for MSDOS) 1102- fix some MSDOS compilation problems 1103 1104Changes in 0.5: 1105- do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but 1106 not yet Z_FULL_FLUSH. 1107- support decompression but only in a single step (forced Z_FINISH) 1108- added opaque object for zalloc and zfree. 1109- added deflateReset and inflateReset 1110- added a variable zlib_version for consistency checking. 1111- renamed the 'filter' parameter of deflateInit2 as 'strategy'. 1112 Added Z_FILTERED and Z_HUFFMAN_ONLY constants. 1113 1114Changes in 0.4: 1115- avoid "zip" everywhere, use zlib instead of ziplib. 1116- suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush 1117 if compression method == 8. 1118- added adler32 and crc32 1119- renamed deflateOptions as deflateInit2, call one or the other but not both 1120- added the method parameter for deflateInit2. 1121- added inflateInit2 1122- simplied considerably deflateInit and inflateInit by not supporting 1123 user-provided history buffer. This is supported only in deflateInit2 1124 and inflateInit2. 1125 1126Changes in 0.3: 1127- prefix all macro names with Z_ 1128- use Z_FINISH instead of deflateEnd to finish compression. 1129- added Z_HUFFMAN_ONLY 1130- added gzerror() 1131