ChangeLog revision 33904
117651Speter 217651Speter ChangeLog file for zlib 317651Speter 433904SsteveChanges in 1.1.1 (27 Feb 98) 533904Ssteve- fix macros _tr_tally_* in deflate.h for debug mode (Glenn Randers-Pehrson) 633904Ssteve- remove block truncation heuristic which had very marginal effect for zlib 733904Ssteve (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the 833904Ssteve compression ratio on some files. This also allows inlining _tr_tally for 933904Ssteve matches in deflate_slow. 1033904Ssteve- added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier) 1133904Ssteve 1233904SsteveChanges in 1.1.0 (24 Feb 98) 1333904Ssteve- do not return STREAM_END prematurely in inflate (John Bowler) 1433904Ssteve- revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler) 1533904Ssteve- compile with -DFASTEST to get compression code optimized for speed only 1633904Ssteve- in minigzip, try mmap'ing the input file first (Miguel Albrecht) 1733904Ssteve- increase size of I/O buffers in minigzip.c and gzio.c (not a big gain 1833904Ssteve on Sun but significant on HP) 1933904Ssteve 2033904Ssteve- add a pointer to experimental unzip library in README (Gilles Vollant) 2133904Ssteve- initialize variable gcc in configure (Chris Herborth) 2233904Ssteve 2333904SsteveChanges in 1.0.9 (17 Feb 1998) 2433904Ssteve- added gzputs and gzgets functions 2533904Ssteve- do not clear eof flag in gzseek (Mark Diekhans) 2633904Ssteve- fix gzseek for files in transparent mode (Mark Diekhans) 2733904Ssteve- do not assume that vsprintf returns the number of bytes written (Jens Krinke) 2833904Ssteve- replace EXPORT with ZEXPORT to avoid conflict with other programs 2933904Ssteve- added compress2 in zconf.h, zlib.def, zlib.dnt 3033904Ssteve- new asm code from Gilles Vollant in contrib/asm386 3133904Ssteve- simplify the inflate code (Mark): 3233904Ssteve . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new() 3333904Ssteve . ZALLOC the length list in inflate_trees_fixed() instead of using stack 3433904Ssteve . ZALLOC the value area for huft_build() instead of using stack 3533904Ssteve . Simplify Z_FINISH check in inflate() 3633904Ssteve 3733904Ssteve- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8 3833904Ssteve- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi) 3933904Ssteve- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with 4033904Ssteve the declaration of FAR (Gilles VOllant) 4133904Ssteve- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann) 4233904Ssteve- read_buf buf parameter of type Bytef* instead of charf* 4333904Ssteve- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout) 4433904Ssteve- do not redeclare unlink in minigzip.c for WIN32 (John Bowler) 4533904Ssteve- fix check for presence of directories in "make install" (Ian Willis) 4633904Ssteve 4733904SsteveChanges in 1.0.8 (27 Jan 1998) 4833904Ssteve- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant) 4933904Ssteve- fix gzgetc and gzputc for big endian systems (Markus Oberhumer) 5033904Ssteve- added compress2() to allow setting the compression level 5133904Ssteve- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong) 5233904Ssteve- use constant arrays for the static trees in trees.c instead of computing 5333904Ssteve them at run time (thanks to Ken Raeburn for this suggestion). To create 5433904Ssteve trees.h, compile with GEN_TREES_H and run "make test". 5533904Ssteve- check return code of example in "make test" and display result 5633904Ssteve- pass minigzip command line options to file_compress 5733904Ssteve- simplifying code of inflateSync to avoid gcc 2.8 bug 5833904Ssteve 5933904Ssteve- support CC="gcc -Wall" in configure -s (QingLong) 6033904Ssteve- avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn) 6133904Ssteve- fix test for shared library support to avoid compiler warnings 6233904Ssteve- zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant) 6333904Ssteve- check for TARGET_OS_MAC in addition to MACOS (Brad Pettit) 6433904Ssteve- do not use fdopen for Metrowerks on Mac (Brad Pettit)) 6533904Ssteve- add checks for gzputc and gzputc in example.c 6633904Ssteve- avoid warnings in gzio.c and deflate.c (Andreas Kleinert) 6733904Ssteve- use const for the CRC table (Ken Raeburn) 6833904Ssteve- fixed "make uninstall" for shared libraries 6933904Ssteve- use Tracev instead of Trace in infblock.c 7033904Ssteve- in example.c use correct compressed length for test_sync 7133904Ssteve- suppress +vnocompatwarnings in configure for HPUX (not always supported) 7233904Ssteve 7333904SsteveChanges in 1.0.7 (20 Jan 1998) 7433904Ssteve- fix gzseek which was broken in write mode 7533904Ssteve- return error for gzseek to negative absolute position 7633904Ssteve- fix configure for Linux (Chun-Chung Chen) 7733904Ssteve- increase stack space for MSC (Tim Wegner) 7833904Ssteve- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant) 7933904Ssteve- define EXPORTVA for gzprintf (Gilles Vollant) 8033904Ssteve- added man page zlib.3 (Rick Rodgers) 8133904Ssteve- for contrib/untgz, fix makedir() and improve Makefile 8233904Ssteve 8333904Ssteve- check gzseek in write mode in example.c 8433904Ssteve- allocate extra buffer for seeks only if gzseek is actually called 8533904Ssteve- avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant) 8633904Ssteve- add inflateSyncPoint in zconf.h 8733904Ssteve- fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def 8833904Ssteve 8933904SsteveChanges in 1.0.6 (19 Jan 1998) 9033904Ssteve- add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and 9133904Ssteve gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code) 9233904Ssteve- Fix a deflate bug occuring only with compression level 0 (thanks to 9333904Ssteve Andy Buckler for finding this one). 9433904Ssteve- In minigzip, pass transparently also the first byte for .Z files. 9533904Ssteve- return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress() 9633904Ssteve- check Z_FINISH in inflate (thanks to Marc Schluper) 9733904Ssteve- Implement deflateCopy (thanks to Adam Costello) 9833904Ssteve- make static libraries by default in configure, add --shared option. 9933904Ssteve- move MSDOS or Windows specific files to directory msdos 10033904Ssteve- suppress the notion of partial flush to simplify the interface 10133904Ssteve (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4) 10233904Ssteve- suppress history buffer provided by application to simplify the interface 10333904Ssteve (this feature was not implemented anyway in 1.0.4) 10433904Ssteve- next_in and avail_in must be initialized before calling inflateInit or 10533904Ssteve inflateInit2 10633904Ssteve- add EXPORT in all exported functions (for Windows DLL) 10733904Ssteve- added Makefile.nt (thanks to Stephen Williams) 10833904Ssteve- added the unsupported "contrib" directory: 10933904Ssteve contrib/asm386/ by Gilles Vollant <info@winimage.com> 11033904Ssteve 386 asm code replacing longest_match(). 11133904Ssteve contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu> 11233904Ssteve A C++ I/O streams interface to the zlib gz* functions 11333904Ssteve contrib/iostream2/ by Tyge L�vset <Tyge.Lovset@cmr.no> 11433904Ssteve Another C++ I/O streams interface 11533904Ssteve contrib/untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es> 11633904Ssteve A very simple tar.gz file extractor using zlib 11733904Ssteve contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl> 11833904Ssteve How to use compress(), uncompress() and the gz* functions from VB. 11933904Ssteve- pass params -f (filtered data), -h (huffman only), -1 to -9 (compression 12033904Ssteve level) in minigzip (thanks to Tom Lane) 12133904Ssteve 12233904Ssteve- use const for rommable constants in deflate 12333904Ssteve- added test for gzseek and gztell in example.c 12433904Ssteve- add undocumented function inflateSyncPoint() (hack for Paul Mackerras) 12533904Ssteve- add undocumented function zError to convert error code to string 12633904Ssteve (for Tim Smithers) 12733904Ssteve- Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code. 12833904Ssteve- Use default memcpy for Symantec MSDOS compiler. 12933904Ssteve- Add EXPORT keyword for check_func (needed for Windows DLL) 13033904Ssteve- add current directory to LD_LIBRARY_PATH for "make test" 13133904Ssteve- create also a link for libz.so.1 13233904Ssteve- added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura) 13333904Ssteve- use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX) 13433904Ssteve- added -soname for Linux in configure (Chun-Chung Chen, 13533904Ssteve- assign numbers to the exported functions in zlib.def (for Windows DLL) 13633904Ssteve- add advice in zlib.h for best usage of deflateSetDictionary 13733904Ssteve- work around compiler bug on Atari (cast Z_NULL in call of s->checkfn) 13833904Ssteve- allow compilation with ANSI keywords only enabled for TurboC in large model 13933904Ssteve- avoid "versionString"[0] (Borland bug) 14033904Ssteve- add NEED_DUMMY_RETURN for Borland 14133904Ssteve- use variable z_verbose for tracing in debug mode (Peter Deutsch). 14233904Ssteve- allow compilation with CC 14333904Ssteve- defined STDC for OS/2 (David Charlap) 14433904Ssteve- limit external names to 8 chars for MVS (Thomas Lund) 14533904Ssteve- in minigzip.c, use static buffers only for 16-bit systems 14633904Ssteve- fix suffix check for "minigzip -d foo.gz" 14733904Ssteve- do not return an error for the 2nd of two consecutive gzflush() (Felix Lee) 14833904Ssteve- use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau) 14933904Ssteve- added makelcc.bat for lcc-win32 (Tom St Denis) 15033904Ssteve- in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe) 15133904Ssteve- Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion. 15233904Ssteve- check for unistd.h in configure (for off_t) 15333904Ssteve- remove useless check parameter in inflate_blocks_free 15433904Ssteve- avoid useless assignment of s->check to itself in inflate_blocks_new 15533904Ssteve- do not flush twice in gzclose (thanks to Ken Raeburn) 15633904Ssteve- rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h 15733904Ssteve- use NO_ERRNO_H instead of enumeration of operating systems with errno.h 15833904Ssteve- work around buggy fclose on pipes for HP/UX 15933904Ssteve- support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson) 16033904Ssteve- fix configure if CC is already equal to gcc 16133904Ssteve 16233904SsteveChanges in 1.0.5 (3 Jan 98) 16333904Ssteve- Fix inflate to terminate gracefully when fed corrupted or invalid data 16433904Ssteve- Use const for rommable constants in inflate 16533904Ssteve- Eliminate memory leaks on error conditions in inflate 16633904Ssteve- Removed some vestigial code in inflate 16733904Ssteve- Update web address in README 16833904Ssteve 16917651SpeterChanges in 1.0.4 (24 Jul 96) 17017651Speter- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF 17117651Speter bit, so the decompressor could decompress all the correct data but went 17217651Speter on to attempt decompressing extra garbage data. This affected minigzip too. 17317651Speter- zlibVersion and gzerror return const char* (needed for DLL) 17417651Speter- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno) 17517651Speter- use z_error only for DEBUG (avoid problem with DLLs) 17617651Speter 17717651SpeterChanges in 1.0.3 (2 Jul 96) 17817651Speter- use z_streamp instead of z_stream *, which is now a far pointer in MSDOS 17917651Speter small and medium models; this makes the library incompatible with previous 18017651Speter versions for these models. (No effect in large model or on other systems.) 18117651Speter- return OK instead of BUF_ERROR if previous deflate call returned with 18217651Speter avail_out as zero but there is nothing to do 18317651Speter- added memcmp for non STDC compilers 18417651Speter- define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly) 18517651Speter- define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO) 18617651Speter- better check for 16-bit mode MSC (avoids problem with Symantec) 18717651Speter 18817651SpeterChanges in 1.0.2 (23 May 96) 18917651Speter- added Windows DLL support 19017651Speter- added a function zlibVersion (for the DLL support) 19117651Speter- fixed declarations using Bytef in infutil.c (pb with MSDOS medium model) 19217651Speter- Bytef is define's instead of typedef'd only for Borland C 19317651Speter- avoid reading uninitialized memory in example.c 19417651Speter- mention in README that the zlib format is now RFC1950 19517651Speter- updated Makefile.dj2 19617651Speter- added algorithm.doc 19717651Speter 19817651SpeterChanges in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion] 19917651Speter- fix array overlay in deflate.c which sometimes caused bad compressed data 20017651Speter- fix inflate bug with empty stored block 20117651Speter- fix MSDOS medium model which was broken in 0.99 20217651Speter- fix deflateParams() which could generated bad compressed data. 20317651Speter- Bytef is define'd instead of typedef'ed (work around Borland bug) 20417651Speter- added an INDEX file 20517651Speter- new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32), 20617651Speter Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas) 20717651Speter- speed up adler32 for modern machines without auto-increment 20817651Speter- added -ansi for IRIX in configure 20917651Speter- static_init_done in trees.c is an int 21017651Speter- define unlink as delete for VMS 21117651Speter- fix configure for QNX 21217651Speter- add configure branch for SCO and HPUX 21317651Speter- avoid many warnings (unused variables, dead assignments, etc...) 21417651Speter- no fdopen for BeOS 21517651Speter- fix the Watcom fix for 32 bit mode (define FAR as empty) 21617651Speter- removed redefinition of Byte for MKWERKS 21717651Speter- work around an MWKERKS bug (incorrect merge of all .h files) 21817651Speter 21917651SpeterChanges in 0.99 (27 Jan 96) 22017651Speter- allow preset dictionary shared between compressor and decompressor 22117651Speter- allow compression level 0 (no compression) 22217651Speter- add deflateParams in zlib.h: allow dynamic change of compression level 22317651Speter and compression strategy. 22417651Speter- test large buffers and deflateParams in example.c 22517651Speter- add optional "configure" to build zlib as a shared library 22617651Speter- suppress Makefile.qnx, use configure instead 22717651Speter- fixed deflate for 64-bit systems (detected on Cray) 22817651Speter- fixed inflate_blocks for 64-bit systems (detected on Alpha) 22917651Speter- declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2) 23017651Speter- always return Z_BUF_ERROR when deflate() has nothing to do 23117651Speter- deflateInit and inflateInit are now macros to allow version checking 23217651Speter- prefix all global functions and types with z_ with -DZ_PREFIX 23317651Speter- make falloc completely reentrant (inftrees.c) 23417651Speter- fixed very unlikely race condition in ct_static_init 23517651Speter- free in reverse order of allocation to help memory manager 23617651Speter- use zlib-1.0/* instead of zlib/* inside the tar.gz 23717651Speter- make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith 23817651Speter -Wconversion -Wstrict-prototypes -Wmissing-prototypes" 23917651Speter- allow gzread on concatenated .gz files 24017651Speter- deflateEnd now returns Z_DATA_ERROR if it was premature 24117651Speter- deflate is finally (?) fully deterministic (no matches beyond end of input) 24217651Speter- Document Z_SYNC_FLUSH 24317651Speter- add uninstall in Makefile 24417651Speter- Check for __cpluplus in zlib.h 24517651Speter- Better test in ct_align for partial flush 24617651Speter- avoid harmless warnings for Borland C++ 24717651Speter- initialize hash_head in deflate.c 24817651Speter- avoid warning on fdopen (gzio.c) for HP cc -Aa 24917651Speter- include stdlib.h for STDC compilers 25017651Speter- include errno.h for Cray 25117651Speter- ignore error if ranlib doesn't exist 25217651Speter- call ranlib twice for NeXTSTEP 25317651Speter- use exec_prefix instead of prefix for libz.a 25417651Speter- renamed ct_* as _tr_* to avoid conflict with applications 25517651Speter- clear z->msg in inflateInit2 before any error return 25617651Speter- initialize opaque in example.c, gzio.c, deflate.c and inflate.c 25717651Speter- fixed typo in zconf.h (_GNUC__ => __GNUC__) 25817651Speter- check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode) 25917651Speter- fix typo in Make_vms.com (f$trnlnm -> f$getsyi) 26017651Speter- in fcalloc, normalize pointer if size > 65520 bytes 26117651Speter- don't use special fcalloc for 32 bit Borland C++ 26217651Speter- use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc... 26317651Speter- use Z_BINARY instead of BINARY 26417651Speter- document that gzclose after gzdopen will close the file 26517651Speter- allow "a" as mode in gzopen. 26617651Speter- fix error checking in gzread 26717651Speter- allow skipping .gz extra-field on pipes 26817651Speter- added reference to Perl interface in README 26917651Speter- put the crc table in FAR data (I dislike more and more the medium model :) 27017651Speter- added get_crc_table 27117651Speter- added a dimension to all arrays (Borland C can't count). 27217651Speter- workaround Borland C bug in declaration of inflate_codes_new & inflate_fast 27317651Speter- guard against multiple inclusion of *.h (for precompiled header on Mac) 27417651Speter- Watcom C pretends to be Microsoft C small model even in 32 bit mode. 27517651Speter- don't use unsized arrays to avoid silly warnings by Visual C++: 27617651Speter warning C4746: 'inflate_mask' : unsized array treated as '__far' 27717651Speter (what's wrong with far data in far model?). 27817651Speter- define enum out of inflate_blocks_state to allow compilation with C++ 27917651Speter 28017651SpeterChanges in 0.95 (16 Aug 95) 28117651Speter- fix MSDOS small and medium model (now easier to adapt to any compiler) 28217651Speter- inlined send_bits 28317651Speter- fix the final (:-) bug for deflate with flush (output was correct but 28417651Speter not completely flushed in rare occasions). 28517651Speter- default window size is same for compression and decompression 28617651Speter (it's now sufficient to set MAX_WBITS in zconf.h). 28717651Speter- voidp -> voidpf and voidnp -> voidp (for consistency with other 28817651Speter typedefs and because voidnp was not near in large model). 28917651Speter 29017651SpeterChanges in 0.94 (13 Aug 95) 29117651Speter- support MSDOS medium model 29217651Speter- fix deflate with flush (could sometimes generate bad output) 29317651Speter- fix deflateReset (zlib header was incorrectly suppressed) 29417651Speter- added support for VMS 29517651Speter- allow a compression level in gzopen() 29617651Speter- gzflush now calls fflush 29717651Speter- For deflate with flush, flush even if no more input is provided. 29817651Speter- rename libgz.a as libz.a 29917651Speter- avoid complex expression in infcodes.c triggering Turbo C bug 30017651Speter- work around a problem with gcc on Alpha (in INSERT_STRING) 30117651Speter- don't use inline functions (problem with some gcc versions) 30217651Speter- allow renaming of Byte, uInt, etc... with #define. 30317651Speter- avoid warning about (unused) pointer before start of array in deflate.c 30417651Speter- avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c 30517651Speter- avoid reserved word 'new' in trees.c 30617651Speter 30717651SpeterChanges in 0.93 (25 June 95) 30817651Speter- temporarily disable inline functions 30917651Speter- make deflate deterministic 31017651Speter- give enough lookahead for PARTIAL_FLUSH 31117651Speter- Set binary mode for stdin/stdout in minigzip.c for OS/2 31217651Speter- don't even use signed char in inflate (not portable enough) 31317651Speter- fix inflate memory leak for segmented architectures 31417651Speter 31517651SpeterChanges in 0.92 (3 May 95) 31617651Speter- don't assume that char is signed (problem on SGI) 31717651Speter- Clear bit buffer when starting a stored block 31817651Speter- no memcpy on Pyramid 31917651Speter- suppressed inftest.c 32017651Speter- optimized fill_window, put longest_match inline for gcc 32117651Speter- optimized inflate on stored blocks. 32217651Speter- untabify all sources to simplify patches 32317651Speter 32417651SpeterChanges in 0.91 (2 May 95) 32517651Speter- Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h 32617651Speter- Document the memory requirements in zconf.h 32717651Speter- added "make install" 32817651Speter- fix sync search logic in inflateSync 32917651Speter- deflate(Z_FULL_FLUSH) now works even if output buffer too short 33017651Speter- after inflateSync, don't scare people with just "lo world" 33117651Speter- added support for DJGPP 33217651Speter 33317651SpeterChanges in 0.9 (1 May 95) 33417651Speter- don't assume that zalloc clears the allocated memory (the TurboC bug 33517651Speter was Mark's bug after all :) 33617651Speter- let again gzread copy uncompressed data unchanged (was working in 0.71) 33717651Speter- deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented 33817651Speter- added a test of inflateSync in example.c 33917651Speter- moved MAX_WBITS to zconf.h because users might want to change that. 34017651Speter- document explicitly that zalloc(64K) on MSDOS must return a normalized 34117651Speter pointer (zero offset) 34217651Speter- added Makefiles for Microsoft C, Turbo C, Borland C++ 34317651Speter- faster crc32() 34417651Speter 34517651SpeterChanges in 0.8 (29 April 95) 34617651Speter- added fast inflate (inffast.c) 34717651Speter- deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this 34817651Speter is incompatible with previous versions of zlib which returned Z_OK. 34917651Speter- work around a TurboC compiler bug (bad code for b << 0, see infutil.h) 35017651Speter (actually that was not a compiler bug, see 0.81 above) 35117651Speter- gzread no longer reads one extra byte in certain cases 35217651Speter- In gzio destroy(), don't reference a freed structure 35317651Speter- avoid many warnings for MSDOS 35417651Speter- avoid the ERROR symbol which is used by MS Windows 35517651Speter 35617651SpeterChanges in 0.71 (14 April 95) 35717651Speter- Fixed more MSDOS compilation problems :( There is still a bug with 35817651Speter TurboC large model. 35917651Speter 36017651SpeterChanges in 0.7 (14 April 95) 36117651Speter- Added full inflate support. 36217651Speter- Simplified the crc32() interface. The pre- and post-conditioning 36317651Speter (one's complement) is now done inside crc32(). WARNING: this is 36417651Speter incompatible with previous versions; see zlib.h for the new usage. 36517651Speter 36617651SpeterChanges in 0.61 (12 April 95) 36717651Speter- workaround for a bug in TurboC. example and minigzip now work on MSDOS. 36817651Speter 36917651SpeterChanges in 0.6 (11 April 95) 37017651Speter- added minigzip.c 37117651Speter- added gzdopen to reopen a file descriptor as gzFile 37217651Speter- added transparent reading of non-gziped files in gzread. 37317651Speter- fixed bug in gzread (don't read crc as data) 37417651Speter- fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose). 37517651Speter- don't allocate big arrays in the stack (for MSDOS) 37617651Speter- fix some MSDOS compilation problems 37717651Speter 37817651SpeterChanges in 0.5: 37917651Speter- do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but 38017651Speter not yet Z_FULL_FLUSH. 38117651Speter- support decompression but only in a single step (forced Z_FINISH) 38217651Speter- added opaque object for zalloc and zfree. 38317651Speter- added deflateReset and inflateReset 38417651Speter- added a variable zlib_version for consistency checking. 38517651Speter- renamed the 'filter' parameter of deflateInit2 as 'strategy'. 38617651Speter Added Z_FILTERED and Z_HUFFMAN_ONLY constants. 38717651Speter 38817651SpeterChanges in 0.4: 38917651Speter- avoid "zip" everywhere, use zlib instead of ziplib. 39017651Speter- suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush 39117651Speter if compression method == 8. 39217651Speter- added adler32 and crc32 39317651Speter- renamed deflateOptions as deflateInit2, call one or the other but not both 39417651Speter- added the method parameter for deflateInit2. 39517651Speter- added inflateInit2 39617651Speter- simplied considerably deflateInit and inflateInit by not supporting 39717651Speter user-provided history buffer. This is supported only in deflateInit2 39817651Speter and inflateInit2. 39917651Speter 40017651SpeterChanges in 0.3: 40117651Speter- prefix all macro names with Z_ 40217651Speter- use Z_FINISH instead of deflateEnd to finish compression. 40317651Speter- added Z_HUFFMAN_ONLY 40417651Speter- added gzerror() 405