ChangeLog file for zlibChanges in 1.1.4 (11 March 2002)- ZFREE was repeated on same allocation on some error conditions.  This creates a security problem described in  http://www.zlib.org/advisory-2002-03-11.txt- Returned incorrect error (Z_MEM_ERROR) on some invalid data- Avoid accesses before window for invalid distances with inflate window  less than 32K.- force windowBits > 8 to avoid a bug in the encoder for a window size  of 256 bytes. (A complete fix will be available in 1.1.5).	Changes in 1.1.3 (9 July 1998)- fix "an inflate input buffer bug that shows up on rare but persistent  occasions" (Mark)- fix gzread and gztell for concatenated .gz files (Didier Le Botlan)- fix gzseek(..., SEEK_SET) in write mode- fix crc check after a gzeek (Frank Faubert)- fix miniunzip when the last entry in a zip file is itself a zip file  (J Lillge)- add contrib/asm586 and contrib/asm686 (Brian Raiter)  See http://www.muppetlabs.com/~breadbox/software/assembly.html- add support for Delphi 3 in contrib/delphi (Bob Dellaca)- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)- added a FAQ file- Support gzdopen on Mac with Metrowerks (Jason Linhart)- Do not redefine Byte on Mac (Brad Pettit & Jason Linhart)- define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young)- avoid some warnings with Borland C (Tom Tanner)- fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant)- emulate utime() for WIN32 in contrib/untgz  (Gilles Vollant)- allow several arguments to configure (Tim Mooney, Frodo Looijaard)- use libdir and includedir in Makefile.in (Tim Mooney)- support shared libraries on OSF1 V4 (Tim Mooney)- remove so_locations in "make clean"  (Tim Mooney)- fix maketree.c compilation error (Glenn, Mark)- Python interface to zlib now in Python 1.5 (Jeremy Hylton)- new Makefile.riscos (Rich Walker)- initialize static descriptors in trees.c for embedded targets (Nick Smith)- use "foo-gz" in example.c for RISCOS and VMS (Nick Smith)- add the OS/2 files in Makefile.in too (Andrew Zabolotny)- fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane)- fix maketree.c to allow clean compilation of inffixed.h (Mark)- fix parameter check in deflateCopy (Gunther Nikl)- cleanup trees.c, use compressed_len only in debug mode (Christian Spieler)- Many portability patches by Christian Spieler:  . zutil.c, zutil.h: added "const" for zmem*  . Make_vms.com: fixed some typos  . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists  . msdos/Makefile.msc: remove "default rtl link library" info from obj files  . msdos/Makefile.*: use model-dependent name for the built zlib library  . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc:     new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT)- use define instead of typedef for Bytef also for MSC small/medium (Tom Lane)- replace __far with _far for better portability (Christian Spieler, Tom Lane)- fix test for errno.h in configure (Tim Newsham)Changes in 1.1.2 (19 March 98)- added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant)  See http://www.winimage.com/zLibDll/unzip.html- preinitialize the inflate tables for fixed codes, to make the code  completely thread safe (Mark)- some simplifications and slight speed-up to the inflate code (Mark)- fix gzeof on non-compressed files (Allan Schrum)- add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs)- use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn)- added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny)- add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori)- do not wrap extern "C" around system includes (Tom Lane)- mention zlib binding for TCL in README (Andreas Kupries)- added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert)- allow "make install prefix=..." even after configure (Glenn Randers-Pehrson)- allow "configure --prefix $HOME" (Tim Mooney)- remove warnings in example.c and gzio.c (Glenn Randers-Pehrson)- move Makefile.sas to amiga/Makefile.sasChanges in 1.1.1 (27 Feb 98)- fix macros _tr_tally_* in deflate.h for debug mode  (Glenn Randers-Pehrson)- remove block truncation heuristic which had very marginal effect for zlib  (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the  compression ratio on some files. This also allows inlining _tr_tally for  matches in deflate_slow.- added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier)Changes in 1.1.0 (24 Feb 98)- do not return STREAM_END prematurely in inflate (John Bowler)- revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler)- compile with -DFASTEST to get compression code optimized for speed only- in minigzip, try mmap'ing the input file first (Miguel Albrecht)- increase size of I/O buffers in minigzip.c and gzio.c (not a big gain  on Sun but significant on HP)- add a pointer to experimental unzip library in README (Gilles Vollant)- initialize variable gcc in configure (Chris Herborth)Changes in 1.0.9 (17 Feb 1998)- added gzputs and gzgets functions- do not clear eof flag in gzseek (Mark Diekhans)- fix gzseek for files in transparent mode (Mark Diekhans)- do not assume that vsprintf returns the number of bytes written (Jens Krinke)- replace EXPORT with ZEXPORT to avoid conflict with other programs- added compress2 in zconf.h, zlib.def, zlib.dnt- new asm code from Gilles Vollant in contrib/asm386- simplify the inflate code (Mark): . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new() . ZALLOC the length list in inflate_trees_fixed() instead of using stack . ZALLOC the value area for huft_build() instead of using stack . Simplify Z_FINISH check in inflate()- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi)- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with  the declaration of FAR (Gilles VOllant)- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann)- read_buf buf parameter of type Bytef* instead of charf*- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout)- do not redeclare unlink in minigzip.c for WIN32 (John Bowler)- fix check for presence of directories in "make install" (Ian Willis)Changes in 1.0.8 (27 Jan 1998)- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant)- fix gzgetc and gzputc for big endian systems (Markus Oberhumer)- added compress2() to allow setting the compression level- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong)- use constant arrays for the static trees in trees.c instead of computing  them at run time (thanks to Ken Raeburn for this suggestion). To create  trees.h, compile with GEN_TREES_H and run "make test".- check return code of example in "make test" and display result- pass minigzip command line options to file_compress- simplifying code of inflateSync to avoid gcc 2.8 bug- support CC="gcc -Wall" in configure -s (QingLong)- avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn)- fix test for shared library support to avoid compiler warnings- zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant)- check for TARGET_OS_MAC in addition to MACOS (Brad Pettit)- do not use fdopen for Metrowerks on Mac (Brad Pettit))- add checks for gzputc and gzputc in example.c- avoid warnings in gzio.c and deflate.c (Andreas Kleinert)- use const for the CRC table (Ken Raeburn)- fixed "make uninstall" for shared libraries- use Tracev instead of Trace in infblock.c- in example.c use correct compressed length for test_sync- suppress +vnocompatwarnings in configure for HPUX (not always supported)Changes in 1.0.7 (20 Jan 1998)- fix gzseek which was broken in write mode- return error for gzseek to negative absolute position- fix configure for Linux (Chun-Chung Chen)- increase stack space for MSC (Tim Wegner)- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant)- define EXPORTVA for gzprintf (Gilles Vollant)- added man page zlib.3 (Rick Rodgers)- for contrib/untgz, fix makedir() and improve Makefile- check gzseek in write mode in example.c- allocate extra buffer for seeks only if gzseek is actually called- avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant)- add inflateSyncPoint in zconf.h- fix list of exported functions in nt/zlib.dnt and mdsos/zlib.defChanges in 1.0.6 (19 Jan 1998)- add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and  gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code)- Fix a deflate bug occuring only with compression level 0 (thanks to  Andy Buckler for finding this one).- In minigzip, pass transparently also the first byte for .Z files.- return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress()- check Z_FINISH in inflate (thanks to Marc Schluper)- Implement deflateCopy (thanks to Adam Costello)- make static libraries by default in configure, add --shared option.- move MSDOS or Windows specific files to directory msdos- suppress the notion of partial flush to simplify the interface  (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4)- suppress history buffer provided by application to simplify the interface  (this feature was not implemented anyway in 1.0.4)- next_in and avail_in must be initialized before calling inflateInit or  inflateInit2- add EXPORT in all exported functions (for Windows DLL)- added Makefile.nt (thanks to Stephen Williams)- added the unsupported "contrib" directory:   contrib/asm386/ by Gilles Vollant <info@winimage.com>	386 asm code replacing longest_match().   contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>        A C++ I/O streams interface to the zlib gz* functions   contrib/iostream2/  by Tyge L鴙set <Tyge.Lovset@cmr.no>	Another C++ I/O streams interface   contrib/untgz/  by "Pedro A. Aranda Guti\irrez" <paag@tid.es>	A very simple tar.gz file extractor using zlib   contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl>        How to use compress(), uncompress() and the gz* functions from VB.- pass params -f (filtered data), -h (huffman only), -1 to -9 (compression  level) in minigzip (thanks to Tom Lane)- use const for rommable constants in deflate- added test for gzseek and gztell in example.c- add undocumented function inflateSyncPoint() (hack for Paul Mackerras)- add undocumented function zError to convert error code to string  (for Tim Smithers)- Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code.- Use default memcpy for Symantec MSDOS compiler.- Add EXPORT keyword for check_func (needed for Windows DLL)- add current directory to LD_LIBRARY_PATH for "make test"- create also a link for libz.so.1- added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura)- use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX)- added -soname for Linux in configure (Chun-Chung Chen,- assign numbers to the exported functions in zlib.def (for Windows DLL)- add advice in zlib.h for best usage of deflateSetDictionary- work around compiler bug on Atari (cast Z_NULL in call of s->checkfn)- allow compilation with ANSI keywords only enabled for TurboC in large model- avoid "versionString"[0] (Borland bug)- add NEED_DUMMY_RETURN for Borland- use variable z_verbose for tracing in debug mode (L. Peter Deutsch).- allow compilation with CC- defined STDC for OS/2 (David Charlap)	- limit external names to 8 chars for MVS (Thomas Lund)- in minigzip.c, use static buffers only for 16-bit systems- fix suffix check for "minigzip -d foo.gz"- do not return an error for the 2nd of two consecutive gzflush() (Felix Lee)- use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau)- added makelcc.bat for lcc-win32 (Tom St Denis)- in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe)- Avoid expanded $Id: ChangeLog,v 1.2 2002/05/05 07:33:15 rob Exp $. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion.- check for unistd.h in configure (for off_t)- remove useless check parameter in inflate_blocks_free- avoid useless assignment of s->check to itself in inflate_blocks_new- do not flush twice in gzclose (thanks to Ken Raeburn)- rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h- use NO_ERRNO_H instead of enumeration of operating systems with errno.h- work around buggy fclose on pipes for HP/UX- support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson)- fix configure if CC is already equal to gccChanges in 1.0.5 (3 Jan 98)- Fix inflate to terminate gracefully when fed corrupted or invalid data- Use const for rommable constants in inflate