1
2002-03-12 Werner Koch <wk@gnupg.org>
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Merged changes from zlib 1.1.4.
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Sat Feb 13 12:04:43 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
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* Makefile.am: Removed -Wall
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Wed Jan 20 21:40:21 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
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* Makefile.am: Corrected the list of sources
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Wed Jan 13 14:10:15 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
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Merged version 1.1.3 with the previousy used 1.0.4
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Thu Feb 12 12:20:45 1998 Werner Koch (wk@frodo)
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Removed a couple of files, as this is only used if zlib is
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missing on a system. Added automake stuff
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ChangeLog file for zlib
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Changes in 1.1.4 (11 March 2002)
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- ZFREE was repeated on same allocation on some error conditions.
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This creates a security problem described in
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http://www.zlib.org/advisory-2002-03-11.txt
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- Returned incorrect error (Z_MEM_ERROR) on some invalid data
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- Avoid accesses before window for invalid distances with inflate window
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- force windowBits > 8 to avoid a bug in the encoder for a window size
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of 256 bytes. (A complete fix will be available in 1.1.5).
36
Changes in 1.1.3 (9 July 1998)
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- fix "an inflate input buffer bug that shows up on rare but persistent
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- fix gzread and gztell for concatenated .gz files (Didier Le Botlan)
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- fix gzseek(..., SEEK_SET) in write mode
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- fix crc check after a gzeek (Frank Faubert)
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- fix miniunzip when the last entry in a zip file is itself a zip file
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- add contrib/asm586 and contrib/asm686 (Brian Raiter)
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See http://www.muppetlabs.com/~breadbox/software/assembly.html
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- add support for Delphi 3 in contrib/delphi (Bob Dellaca)
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- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)
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- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)
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- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)
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- Support gzdopen on Mac with Metrowerks (Jason Linhart)
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- Do not redefine Byte on Mac (Brad Pettit & Jason Linhart)
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- define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young)
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- avoid some warnings with Borland C (Tom Tanner)
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- fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant)
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- emulate utime() for WIN32 in contrib/untgz (Gilles Vollant)
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- allow several arguments to configure (Tim Mooney, Frodo Looijaard)
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- use libdir and includedir in Makefile.in (Tim Mooney)
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- support shared libraries on OSF1 V4 (Tim Mooney)
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- remove so_locations in "make clean" (Tim Mooney)
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- fix maketree.c compilation error (Glenn, Mark)
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- Python interface to zlib now in Python 1.5 (Jeremy Hylton)
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- new Makefile.riscos (Rich Walker)
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- initialize static descriptors in trees.c for embedded targets (Nick Smith)
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- use "foo-gz" in example.c for RISCOS and VMS (Nick Smith)
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- add the OS/2 files in Makefile.in too (Andrew Zabolotny)
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- fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane)
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- fix maketree.c to allow clean compilation of inffixed.h (Mark)
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- fix parameter check in deflateCopy (Gunther Nikl)
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- cleanup trees.c, use compressed_len only in debug mode (Christian Spieler)
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- Many portability patches by Christian Spieler:
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. zutil.c, zutil.h: added "const" for zmem*
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. Make_vms.com: fixed some typos
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. Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists
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. msdos/Makefile.msc: remove "default rtl link library" info from obj files
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. msdos/Makefile.*: use model-dependent name for the built zlib library
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. msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc:
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new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT)
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- use define instead of typedef for Bytef also for MSC small/medium (Tom Lane)
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- replace __far with _far for better portability (Christian Spieler, Tom Lane)
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- fix test for errno.h in configure (Tim Newsham)
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Changes in 1.1.2 (19 March 98)
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- added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant)
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See http://www.winimage.com/zLibDll/unzip.html
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- preinitialize the inflate tables for fixed codes, to make the code
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completely thread safe (Mark)
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- some simplifications and slight speed-up to the inflate code (Mark)
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- fix gzeof on non-compressed files (Allan Schrum)
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- add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs)
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- use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn)
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- added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny)
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- add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori)
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- do not wrap extern "C" around system includes (Tom Lane)
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- mention zlib binding for TCL in README (Andreas Kupries)
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- added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert)
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- allow "make install prefix=..." even after configure (Glenn Randers-Pehrson)
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- allow "configure --prefix $HOME" (Tim Mooney)
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- remove warnings in example.c and gzio.c (Glenn Randers-Pehrson)
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- move Makefile.sas to amiga/Makefile.sas
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Changes in 1.1.1 (27 Feb 98)
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- fix macros _tr_tally_* in deflate.h for debug mode (Glenn Randers-Pehrson)
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- remove block truncation heuristic which had very marginal effect for zlib
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(smaller lit_bufsize than in gzip 1.2.4) and degraded a little the
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compression ratio on some files. This also allows inlining _tr_tally for
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matches in deflate_slow.
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- added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier)
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Changes in 1.1.0 (24 Feb 98)
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- do not return STREAM_END prematurely in inflate (John Bowler)
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- revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler)
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- compile with -DFASTEST to get compression code optimized for speed only
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- in minigzip, try mmap'ing the input file first (Miguel Albrecht)
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- increase size of I/O buffers in minigzip.c and gzio.c (not a big gain
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on Sun but significant on HP)
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- add a pointer to experimental unzip library in README (Gilles Vollant)
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- initialize variable gcc in configure (Chris Herborth)
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Changes in 1.0.9 (17 Feb 1998)
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- added gzputs and gzgets functions
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- do not clear eof flag in gzseek (Mark Diekhans)
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- fix gzseek for files in transparent mode (Mark Diekhans)
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- do not assume that vsprintf returns the number of bytes written (Jens Krinke)
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- replace EXPORT with ZEXPORT to avoid conflict with other programs
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- added compress2 in zconf.h, zlib.def, zlib.dnt
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- new asm code from Gilles Vollant in contrib/asm386
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- simplify the inflate code (Mark):
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. Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new()
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. ZALLOC the length list in inflate_trees_fixed() instead of using stack
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. ZALLOC the value area for huft_build() instead of using stack
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. Simplify Z_FINISH check in inflate()
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- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8
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- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi)
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- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with
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the declaration of FAR (Gilles VOllant)
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- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann)
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- read_buf buf parameter of type Bytef* instead of charf*
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- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout)
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- do not redeclare unlink in minigzip.c for WIN32 (John Bowler)
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- fix check for presence of directories in "make install" (Ian Willis)
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Changes in 1.0.8 (27 Jan 1998)
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- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant)
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- fix gzgetc and gzputc for big endian systems (Markus Oberhumer)
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- added compress2() to allow setting the compression level
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- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong)
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- use constant arrays for the static trees in trees.c instead of computing
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them at run time (thanks to Ken Raeburn for this suggestion). To create
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trees.h, compile with GEN_TREES_H and run "make test".
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- check return code of example in "make test" and display result
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- pass minigzip command line options to file_compress
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- simplifying code of inflateSync to avoid gcc 2.8 bug
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- support CC="gcc -Wall" in configure -s (QingLong)
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- avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn)
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- fix test for shared library support to avoid compiler warnings
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- zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant)
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- check for TARGET_OS_MAC in addition to MACOS (Brad Pettit)
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- do not use fdopen for Metrowerks on Mac (Brad Pettit))
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- add checks for gzputc and gzputc in example.c
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- avoid warnings in gzio.c and deflate.c (Andreas Kleinert)
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- use const for the CRC table (Ken Raeburn)
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- fixed "make uninstall" for shared libraries
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- use Tracev instead of Trace in infblock.c
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- in example.c use correct compressed length for test_sync
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- suppress +vnocompatwarnings in configure for HPUX (not always supported)
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Changes in 1.0.7 (20 Jan 1998)
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- fix gzseek which was broken in write mode
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- return error for gzseek to negative absolute position
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- fix configure for Linux (Chun-Chung Chen)
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- increase stack space for MSC (Tim Wegner)
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- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant)
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- define EXPORTVA for gzprintf (Gilles Vollant)
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- added man page zlib.3 (Rick Rodgers)
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- for contrib/untgz, fix makedir() and improve Makefile
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- check gzseek in write mode in example.c
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- allocate extra buffer for seeks only if gzseek is actually called
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- avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant)
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- add inflateSyncPoint in zconf.h
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- fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def
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Changes in 1.0.6 (19 Jan 1998)
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- add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and
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gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code)
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- Fix a deflate bug occuring only with compression level 0 (thanks to
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Andy Buckler for finding this one).
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- In minigzip, pass transparently also the first byte for .Z files.
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- return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress()
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- check Z_FINISH in inflate (thanks to Marc Schluper)
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- Implement deflateCopy (thanks to Adam Costello)
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- make static libraries by default in configure, add --shared option.
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- move MSDOS or Windows specific files to directory msdos
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- suppress the notion of partial flush to simplify the interface
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(but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4)
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- suppress history buffer provided by application to simplify the interface
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(this feature was not implemented anyway in 1.0.4)
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- next_in and avail_in must be initialized before calling inflateInit or
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- add EXPORT in all exported functions (for Windows DLL)
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- added Makefile.nt (thanks to Stephen Williams)
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- added the unsupported "contrib" directory:
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contrib/asm386/ by Gilles Vollant <info@winimage.com>
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386 asm code replacing longest_match().
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contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
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A C++ I/O streams interface to the zlib gz* functions
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contrib/iostream2/ by Tyge L�vset <Tyge.Lovset@cmr.no>
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Another C++ I/O streams interface
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contrib/untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es>
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A very simple tar.gz file extractor using zlib
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contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl>
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How to use compress(), uncompress() and the gz* functions from VB.
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- pass params -f (filtered data), -h (huffman only), -1 to -9 (compression
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level) in minigzip (thanks to Tom Lane)
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- use const for rommable constants in deflate
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- added test for gzseek and gztell in example.c
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- add undocumented function inflateSyncPoint() (hack for Paul Mackerras)
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- add undocumented function zError to convert error code to string
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- Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code.
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- Use default memcpy for Symantec MSDOS compiler.
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- Add EXPORT keyword for check_func (needed for Windows DLL)
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- add current directory to LD_LIBRARY_PATH for "make test"
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- create also a link for libz.so.1
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- added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura)
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- use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX)
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- added -soname for Linux in configure (Chun-Chung Chen,
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- assign numbers to the exported functions in zlib.def (for Windows DLL)
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- add advice in zlib.h for best usage of deflateSetDictionary
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- work around compiler bug on Atari (cast Z_NULL in call of s->checkfn)
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- allow compilation with ANSI keywords only enabled for TurboC in large model
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- avoid "versionString"[0] (Borland bug)
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- add NEED_DUMMY_RETURN for Borland
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- use variable z_verbose for tracing in debug mode (L. Peter Deutsch).
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- allow compilation with CC
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- defined STDC for OS/2 (David Charlap)
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- limit external names to 8 chars for MVS (Thomas Lund)
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- in minigzip.c, use static buffers only for 16-bit systems
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- fix suffix check for "minigzip -d foo.gz"
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- do not return an error for the 2nd of two consecutive gzflush() (Felix Lee)
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- use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau)
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- added makelcc.bat for lcc-win32 (Tom St Denis)
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- in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe)
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- Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion.
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- check for unistd.h in configure (for off_t)
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- remove useless check parameter in inflate_blocks_free
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- avoid useless assignment of s->check to itself in inflate_blocks_new
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- do not flush twice in gzclose (thanks to Ken Raeburn)
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- rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h
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- use NO_ERRNO_H instead of enumeration of operating systems with errno.h
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- work around buggy fclose on pipes for HP/UX
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- support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson)
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- fix configure if CC is already equal to gcc
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Changes in 1.0.5 (3 Jan 98)
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- Fix inflate to terminate gracefully when fed corrupted or invalid data
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- Use const for rommable constants in inflate
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- Eliminate memory leaks on error conditions in inflate
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- Removed some vestigial code in inflate
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- Update web address in README
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Changes in 1.0.4 (24 Jul 96)
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- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF
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bit, so the decompressor could decompress all the correct data but went
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on to attempt decompressing extra garbage data. This affected minigzip too.
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- zlibVersion and gzerror return const char* (needed for DLL)
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- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno)
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- use z_error only for DEBUG (avoid problem with DLLs)
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Changes in 1.0.3 (2 Jul 96)
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- use z_streamp instead of z_stream *, which is now a far pointer in MSDOS
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small and medium models; this makes the library incompatible with previous
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versions for these models. (No effect in large model or on other systems.)
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- return OK instead of BUF_ERROR if previous deflate call returned with
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avail_out as zero but there is nothing to do
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- added memcmp for non STDC compilers
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- define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly)
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- define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO)
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- better check for 16-bit mode MSC (avoids problem with Symantec)
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Changes in 1.0.2 (23 May 96)
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- added Windows DLL support
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- added a function zlibVersion (for the DLL support)
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- fixed declarations using Bytef in infutil.c (pb with MSDOS medium model)
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- Bytef is define's instead of typedef'd only for Borland C
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- avoid reading uninitialized memory in example.c
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- mention in README that the zlib format is now RFC1950
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- updated Makefile.dj2
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- added algorithm.doc
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Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion]
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- fix array overlay in deflate.c which sometimes caused bad compressed data
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- fix inflate bug with empty stored block
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- fix MSDOS medium model which was broken in 0.99
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- fix deflateParams() which could generated bad compressed data.
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- Bytef is define'd instead of typedef'ed (work around Borland bug)
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- added an INDEX file
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- new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32),
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Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas)
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- speed up adler32 for modern machines without auto-increment
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- added -ansi for IRIX in configure
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- static_init_done in trees.c is an int
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- define unlink as delete for VMS
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- fix configure for QNX
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- add configure branch for SCO and HPUX
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- avoid many warnings (unused variables, dead assignments, etc...)
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- fix the Watcom fix for 32 bit mode (define FAR as empty)
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- removed redefinition of Byte for MKWERKS
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- work around an MWKERKS bug (incorrect merge of all .h files)
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Changes in 0.99 (27 Jan 96)
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- allow preset dictionary shared between compressor and decompressor
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- allow compression level 0 (no compression)
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- add deflateParams in zlib.h: allow dynamic change of compression level
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and compression strategy.
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- test large buffers and deflateParams in example.c
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- add optional "configure" to build zlib as a shared library
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- suppress Makefile.qnx, use configure instead
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- fixed deflate for 64-bit systems (detected on Cray)
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- fixed inflate_blocks for 64-bit systems (detected on Alpha)
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- declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2)
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- always return Z_BUF_ERROR when deflate() has nothing to do
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- deflateInit and inflateInit are now macros to allow version checking
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- prefix all global functions and types with z_ with -DZ_PREFIX
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- make falloc completely reentrant (inftrees.c)
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- fixed very unlikely race condition in ct_static_init
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- free in reverse order of allocation to help memory manager
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- use zlib-1.0/* instead of zlib/* inside the tar.gz
336
- make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith
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-Wconversion -Wstrict-prototypes -Wmissing-prototypes"
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- allow gzread on concatenated .gz files
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- deflateEnd now returns Z_DATA_ERROR if it was premature
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- deflate is finally (?) fully deterministic (no matches beyond end of input)
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- Document Z_SYNC_FLUSH
342
- add uninstall in Makefile
343
- Check for __cpluplus in zlib.h
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- Better test in ct_align for partial flush
345
- avoid harmless warnings for Borland C++
346
- initialize hash_head in deflate.c
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- avoid warning on fdopen (gzio.c) for HP cc -Aa
348
- include stdlib.h for STDC compilers
349
- include errno.h for Cray
350
- ignore error if ranlib doesn't exist
351
- call ranlib twice for NeXTSTEP
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- use exec_prefix instead of prefix for libz.a
353
- renamed ct_* as _tr_* to avoid conflict with applications
354
- clear z->msg in inflateInit2 before any error return
355
- initialize opaque in example.c, gzio.c, deflate.c and inflate.c
356
- fixed typo in zconf.h (_GNUC__ => __GNUC__)
357
- check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode)
358
- fix typo in Make_vms.com (f$trnlnm -> f$getsyi)
359
- in fcalloc, normalize pointer if size > 65520 bytes
360
- don't use special fcalloc for 32 bit Borland C++
361
- use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc...
362
- use Z_BINARY instead of BINARY
363
- document that gzclose after gzdopen will close the file
364
- allow "a" as mode in gzopen.
365
- fix error checking in gzread
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- allow skipping .gz extra-field on pipes
367
- added reference to Perl interface in README
368
- put the crc table in FAR data (I dislike more and more the medium model :)
369
- added get_crc_table
370
- added a dimension to all arrays (Borland C can't count).
371
- workaround Borland C bug in declaration of inflate_codes_new & inflate_fast
372
- guard against multiple inclusion of *.h (for precompiled header on Mac)
373
- Watcom C pretends to be Microsoft C small model even in 32 bit mode.
374
- don't use unsized arrays to avoid silly warnings by Visual C++:
375
warning C4746: 'inflate_mask' : unsized array treated as '__far'
376
(what's wrong with far data in far model?).
377
- define enum out of inflate_blocks_state to allow compilation with C++
379
Changes in 0.95 (16 Aug 95)
380
- fix MSDOS small and medium model (now easier to adapt to any compiler)
382
- fix the final (:-) bug for deflate with flush (output was correct but
383
not completely flushed in rare occasions).
384
- default window size is same for compression and decompression
385
(it's now sufficient to set MAX_WBITS in zconf.h).
386
- voidp -> voidpf and voidnp -> voidp (for consistency with other
387
typedefs and because voidnp was not near in large model).
389
Changes in 0.94 (13 Aug 95)
390
- support MSDOS medium model
391
- fix deflate with flush (could sometimes generate bad output)
392
- fix deflateReset (zlib header was incorrectly suppressed)
393
- added support for VMS
394
- allow a compression level in gzopen()
395
- gzflush now calls fflush
396
- For deflate with flush, flush even if no more input is provided.
397
- rename libgz.a as libz.a
398
- avoid complex expression in infcodes.c triggering Turbo C bug
399
- work around a problem with gcc on Alpha (in INSERT_STRING)
400
- don't use inline functions (problem with some gcc versions)
401
- allow renaming of Byte, uInt, etc... with #define.
402
- avoid warning about (unused) pointer before start of array in deflate.c
403
- avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c
404
- avoid reserved word 'new' in trees.c
406
Changes in 0.93 (25 June 95)
407
- temporarily disable inline functions
408
- make deflate deterministic
409
- give enough lookahead for PARTIAL_FLUSH
410
- Set binary mode for stdin/stdout in minigzip.c for OS/2
411
- don't even use signed char in inflate (not portable enough)
412
- fix inflate memory leak for segmented architectures
414
Changes in 0.92 (3 May 95)
415
- don't assume that char is signed (problem on SGI)
416
- Clear bit buffer when starting a stored block
417
- no memcpy on Pyramid
418
- suppressed inftest.c
419
- optimized fill_window, put longest_match inline for gcc
420
- optimized inflate on stored blocks.
421
- untabify all sources to simplify patches
423
Changes in 0.91 (2 May 95)
424
- Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h
425
- Document the memory requirements in zconf.h
426
- added "make install"
427
- fix sync search logic in inflateSync
428
- deflate(Z_FULL_FLUSH) now works even if output buffer too short
429
- after inflateSync, don't scare people with just "lo world"
430
- added support for DJGPP
432
Changes in 0.9 (1 May 95)
433
- don't assume that zalloc clears the allocated memory (the TurboC bug
434
was Mark's bug after all :)
435
- let again gzread copy uncompressed data unchanged (was working in 0.71)
436
- deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented
437
- added a test of inflateSync in example.c
438
- moved MAX_WBITS to zconf.h because users might want to change that.
439
- document explicitly that zalloc(64K) on MSDOS must return a normalized
440
pointer (zero offset)
441
- added Makefiles for Microsoft C, Turbo C, Borland C++
444
Changes in 0.8 (29 April 95)
445
- added fast inflate (inffast.c)
446
- deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this
447
is incompatible with previous versions of zlib which returned Z_OK.
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- work around a TurboC compiler bug (bad code for b << 0, see infutil.h)
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(actually that was not a compiler bug, see 0.81 above)
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- gzread no longer reads one extra byte in certain cases
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- In gzio destroy(), don't reference a freed structure
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- avoid many warnings for MSDOS
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- avoid the ERROR symbol which is used by MS Windows
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Changes in 0.71 (14 April 95)
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- Fixed more MSDOS compilation problems :( There is still a bug with
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Changes in 0.7 (14 April 95)
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- Added full inflate support.
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- Simplified the crc32() interface. The pre- and post-conditioning
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(one's complement) is now done inside crc32(). WARNING: this is
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incompatible with previous versions; see zlib.h for the new usage.
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Changes in 0.61 (12 April 95)
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- workaround for a bug in TurboC. example and minigzip now work on MSDOS.
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Changes in 0.6 (11 April 95)
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- added gzdopen to reopen a file descriptor as gzFile
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- added transparent reading of non-gziped files in gzread.
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- fixed bug in gzread (don't read crc as data)
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- fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose).
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- don't allocate big arrays in the stack (for MSDOS)
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- fix some MSDOS compilation problems
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- do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but
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not yet Z_FULL_FLUSH.
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- support decompression but only in a single step (forced Z_FINISH)
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- added opaque object for zalloc and zfree.
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- added deflateReset and inflateReset
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- added a variable zlib_version for consistency checking.
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- renamed the 'filter' parameter of deflateInit2 as 'strategy'.
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Added Z_FILTERED and Z_HUFFMAN_ONLY constants.
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- avoid "zip" everywhere, use zlib instead of ziplib.
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- suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush
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if compression method == 8.
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- added adler32 and crc32
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- renamed deflateOptions as deflateInit2, call one or the other but not both
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- added the method parameter for deflateInit2.
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- simplied considerably deflateInit and inflateInit by not supporting
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user-provided history buffer. This is supported only in deflateInit2
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- prefix all macro names with Z_
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- use Z_FINISH instead of deflateEnd to finish compression.
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- added Z_HUFFMAN_ONLY
added
removed
zlib/ChangeLog
