ChangeLog file for zlib

Changes in 1.2.8.1 (xx May 2013)

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Changes in 1.2.8 (28 Apr 2013)

- Update contrib/minizip/iowin32.c for Windows RT [Vollant]

- Do not force Z_CONST for C++

- Clean up contrib/vstudio [Ro§]

- Correct spelling error in zlib.h

- Fix mixed line endings in contrib/vstudio

Changes in 1.2.7.3 (13 Apr 2013)

- Fix version numbers and DLL names in contrib/vstudio/*/zlib.rc

Changes in 1.2.7.2 (13 Apr 2013)

- Change check for a four-byte type back to hexadecimal

- Fix typo in win32/Makefile.msc

- Add casts in gzwrite.c for pointer differences

Changes in 1.2.7.1 (24 Mar 2013)

- Replace use of unsafe string functions with snprintf if available

- Avoid including stddef.h on Windows for Z_SOLO compile [Niessink]

- Fix gzgetc undefine when Z_PREFIX set [Turk]

- Eliminate use of mktemp in Makefile (not always available)

- Fix bug in 'F' mode for gzopen()

- Add inflateGetDictionary() function

- Correct comment in deflate.h

- Use _snprintf for snprintf in Microsoft C

- On Darwin, only use /usr/bin/libtool if libtool is not Apple

- Delete "--version" file if created by "ar --version" [Richard G.]

- Fix configure check for veracity of compiler error return codes

- Fix CMake compilation of static lib for MSVC2010 x64

- Remove unused variable in infback9.c

- Fix argument checks in gzlog_compress() and gzlog_write()

- Clean up the usage of z_const and respect const usage within zlib

- Clean up examples/gzlog.[ch] comparisons of different types

- Avoid shift equal to bits in type (caused endless loop)

- Fix unintialized value bug in gzputc() introduced by const patches

- Fix memory allocation error in examples/zran.c [Nor]

- Fix bug where gzopen(), gzclose() would write an empty file

- Fix bug in gzclose() when gzwrite() runs out of memory

- Check for input buffer malloc failure in examples/gzappend.c

- Add note to contrib/blast to use binary mode in stdio

- Fix comparisons of differently signed integers in contrib/blast

- Check for invalid code length codes in contrib/puff

- Fix serious but very rare decompression bug in inftrees.c

- Update inflateBack() comments, since inflate() can be faster

- Use underscored I/O function names for WINAPI_FAMILY

- Add _tr_flush_bits to the external symbols prefixed by --zprefix

- Add contrib/vstudio/vc10 pre-build step for static only

- Quote --version-script argument in CMakeLists.txt

- Don't specify --version-script on Apple platforms in CMakeLists.txt

- Fix casting error in contrib/testzlib/testzlib.c

- Fix types in contrib/minizip to match result of get_crc_table()

- Simplify contrib/vstudio/vc10 with 'd' suffix

- Add TOP support to win32/Makefile.msc

- Suport i686 and amd64 assembler builds in CMakeLists.txt

- Fix typos in the use of _LARGEFILE64_SOURCE in zconf.h

- Add vc11 and vc12 build files to contrib/vstudio

- Add gzvprintf() as an undocumented function in zlib

- Fix configure for Sun shell

- Remove runtime check in configure for four-byte integer type

- Add casts and consts to ease user conversion to C++

- Add man pages for minizip and miniunzip

- In Makefile uninstall, don't rm if preceding cd fails

- Do not return Z_BUF_ERROR if deflateParam() has nothing to write

Changes in 1.2.7 (2 May 2012)

- Replace use of memmove() with a simple copy for portability

- Test for existence of strerror

- Restore gzgetc_ for backward compatibility with 1.2.6

- Fix build with non-GNU make on Solaris

- Require gcc 4.0 or later on Mac OS X to use the hidden attribute

- Include unistd.h for Watcom C

- Use __WATCOMC__ instead of __WATCOM__

- Do not use the visibility attribute if NO_VIZ defined

- Improve the detection of no hidden visibility attribute

- Avoid using __int64 for gcc or solo compilation

- Cast to char * in gzprintf to avoid warnings [Zinser]

- Fix make_vms.com for VAX [Zinser]

- Don't use library or built-in byte swaps

- Simplify test and use of gcc hidden attribute

- Fix bug in gzclose_w() when gzwrite() fails to allocate memory

- Add "x" (O_EXCL) and "e" (O_CLOEXEC) modes support to gzopen()

- Fix bug in test/minigzip.c for configure --solo

- Fix contrib/vstudio project link errors [Mohanathas]

- Add ability to choose the builder in make_vms.com [Schweda]

- Add DESTDIR support to mingw32 win32/Makefile.gcc

- Fix comments in win32/Makefile.gcc for proper usage

- Allow overriding the default install locations for cmake

- Generate and install the pkg-config file with cmake

- Build both a static and a shared version of zlib with cmake

- Include version symbols for cmake builds

- If using cmake with MSVC, add the source directory to the includes

- Remove unneeded EXTRA_CFLAGS from win32/Makefile.gcc [Truta]

- Move obsolete emx makefile to old [Truta]

- Allow the use of -Wundef when compiling or using zlib

- Avoid the use of the -u option with mktemp

- Improve inflate() documentation on the use of Z_FINISH

- Recognize clang as gcc

- Add gzopen_w() in Windows for wide character path names

- Rename zconf.h in CMakeLists.txt to move it out of the way

- Add source directory in CMakeLists.txt for building examples

- Look in build directory for zlib.pc in CMakeLists.txt

- Remove gzflags from zlibvc.def in vc9 and vc10

- Fix contrib/minizip compilation in the MinGW environment

- Update ./configure for Solaris, support --64 [Mooney]

- Remove -R. from Solaris shared build (possible security issue)

- Avoid race condition for parallel make (-j) running example

- Fix type mismatch between get_crc_table() and crc_table

- Fix parsing of version with "-" in CMakeLists.txt [Snider, Ziegler]

- Fix the path to zlib.map in CMakeLists.txt

- Force the native libtool in Mac OS X to avoid GNU libtool [Beebe]

- Add instructions to win32/Makefile.gcc for shared install [Torri]

Changes in 1.2.6.1 (12 Feb 2012)

- Avoid the use of the Objective-C reserved name "id"

- Include io.h in gzguts.h for Microsoft compilers

- Fix problem with ./configure --prefix and gzgetc macro

- Include gz_header definition when compiling zlib solo

- Put gzflags() functionality back in zutil.c

- Avoid library header include in crc32.c for Z_SOLO

- Use name in GCC_CLASSIC as C compiler for coverage testing, if set

- Minor cleanup in contrib/minizip/zip.c [Vollant]

- Update make_vms.com [Zinser]

- Remove unnecessary gzgetc_ function

- Use optimized byte swap operations for Microsoft and GNU [Snyder]

- Fix minor typo in zlib.h comments [Rzesniowiecki]

Changes in 1.2.6 (29 Jan 2012)

- Update the Pascal interface in contrib/pascal

- Fix function numbers for gzgetc_ in zlibvc.def files

- Fix configure.ac for contrib/minizip [Schiffer]

- Fix large-entry detection in minizip on 64-bit systems [Schiffer]

- Have ./configure use the compiler return code for error indication

- Fix CMakeLists.txt for cross compilation [McClure]

- Fix contrib/minizip/zip.c for 64-bit architectures [Dalsnes]

- Fix compilation of contrib/minizip on FreeBSD [Marquez]

- Correct suggested usages in win32/Makefile.msc [Shachar, Horvath]

- Include io.h for Turbo C / Borland C on all platforms [Truta]

- Make version explicit in contrib/minizip/configure.ac [Bosmans]

- Avoid warning for no encryption in contrib/minizip/zip.c [Vollant]

- Minor cleanup up contrib/minizip/unzip.c [Vollant]

- Fix bug when compiling minizip with C++ [Vollant]

- Protect for long name and extra fields in contrib/minizip [Vollant]

- Avoid some warnings in contrib/minizip [Vollant]

- Add -I../.. -L../.. to CFLAGS for minizip and miniunzip

- Add missing libs to minizip linker command

- Add support for VPATH builds in contrib/minizip

- Add an --enable-demos option to contrib/minizip/configure

- Add the generation of configure.log by ./configure

- Exit when required parameters not provided to win32/Makefile.gcc

- Have gzputc return the character written instead of the argument

- Use the -m option on ldconfig for BSD systems [Tobias]

- Correct in zlib.map when deflateResetKeep was added

Changes in 1.2.5.3 (15 Jan 2012)

- Restore gzgetc function for binary compatibility

- Do not use _lseeki64 under Borland C++ [Truta]

- Update win32/Makefile.msc to build test/*.c [Truta]

- Remove old/visualc6 given CMakefile and other alternatives

- Update AS400 build files and documentation [Monnerat]

- Update win32/Makefile.gcc to build test/*.c [Truta]

- Permit stronger flushes after Z_BLOCK flushes

- Avoid extraneous empty blocks when doing empty flushes

- Permit Z_NULL arguments to deflatePending

- Allow deflatePrime() to insert bits in the middle of a stream

- Remove second empty static block for Z_PARTIAL_FLUSH

- Write out all of the available bits when using Z_BLOCK

- Insert the first two strings in the hash table after a flush

Changes in 1.2.5.2 (17 Dec 2011)

- fix ld error: unable to find version dependency 'ZLIB_1.2.5'

- use relative symlinks for shared libs

- Avoid searching past window for Z_RLE strategy

- Assure that high-water mark initialization is always applied in deflate

- Add assertions to fill_window() in deflate.c to match comments

- Update python link in README

- Correct spelling error in gzread.c

- Fix bug in gzgets() for a concatenated empty gzip stream

- Correct error in comment for gz_make()

- Change gzread() and related to ignore junk after gzip streams

- Allow gzread() and related to continue after gzclearerr()

- Allow gzrewind() and gzseek() after a premature end-of-file

- Simplify gzseek() now that raw after gzip is ignored

- Change gzgetc() to a macro for speed (~40% speedup in testing)

- Fix gzclose() to return the actual error last encountered

- Always add large file support for windows

- Include zconf.h for windows large file support

- Include zconf.h.cmakein for windows large file support

- Update zconf.h.cmakein on make distclean

- Merge vestigial vsnprintf determination from zutil.h to gzguts.h

- Clarify how gzopen() appends in zlib.h comments

- Correct documentation of gzdirect() since junk at end now ignored

- Add a transparent write mode to gzopen() when 'T' is in the mode

- Update python link in zlib man page

- Get inffixed.h and MAKEFIXED result to match

- Add a ./config --solo option to make zlib subset with no libary use

- Add undocumented inflateResetKeep() function for CAB file decoding

- Add --cover option to ./configure for gcc coverage testing

- Add #define ZLIB_CONST option to use const in the z_stream interface

- Add comment to gzdopen() in zlib.h to use dup() when using fileno()

- Note behavior of uncompress() to provide as much data as it can

- Add files in contrib/minizip to aid in building libminizip

- Split off AR options in Makefile.in and configure

- Change ON macro to Z_ARG to avoid application conflicts

- Facilitate compilation with Borland C++ for pragmas and vsnprintf

- Include io.h for Turbo C / Borland C++

- Move example.c and minigzip.c to test/

- Simplify incomplete code table filling in inflate_table()

- Remove code from inflate.c and infback.c that is impossible to execute

- Test the inflate code with full coverage

- Allow deflateSetDictionary, inflateSetDictionary at any time (in raw)

- Add deflateResetKeep and fix inflateResetKeep to retain dictionary

- Fix gzwrite.c to accommodate reduced memory zlib compilation

- Have inflate() with Z_FINISH avoid the allocation of a window

- Do not set strm->adler when doing raw inflate

- Fix gzeof() to behave just like feof() when read is not past end of file

- Fix bug in gzread.c when end-of-file is reached

- Avoid use of Z_BUF_ERROR in gz* functions except for premature EOF

- Document gzread() capability to read concurrently written files

- Remove hard-coding of resource compiler in CMakeLists.txt [Blammo]

Changes in 1.2.5.1 (10 Sep 2011)

- Update FAQ entry on shared builds (#13)

- Avoid symbolic argument to chmod in Makefile.in

- Fix bug and add consts in contrib/puff [Oberhumer]

- Update contrib/puff/zeros.raw test file to have all block types

- Add full coverage test for puff in contrib/puff/Makefile

- Fix static-only-build install in Makefile.in

- Fix bug in unzGetCurrentFileInfo() in contrib/minizip [Kuno]

- Add libz.a dependency to shared in Makefile.in for parallel builds

- Spell out "number" (instead of "nb") in zlib.h for total_in, total_out

- Replace $(...) with `...` in configure for non-bash sh [Bowler]

- Add darwin* to Darwin* and solaris* to SunOS\ 5* in configure [Groffen]

- Add solaris* to Linux* in configure to allow gcc use [Groffen]

- Add *bsd* to Linux* case in configure [Bar-Lev]

- Add inffast.obj to dependencies in win32/Makefile.msc

- Correct spelling error in deflate.h [Kohler]

- Change libzdll.a again to libz.dll.a (!) in win32/Makefile.gcc

- Add test to configure for GNU C looking for gcc in output of $cc -v

- Add zlib.pc generation to win32/Makefile.gcc [Weigelt]

- Fix bug in zlib.h for _FILE_OFFSET_BITS set and _LARGEFILE64_SOURCE not

- Add comment in zlib.h that adler32_combine with len2 < 0 makes no sense

- Make NO_DIVIDE option in adler32.c much faster (thanks to John Reiser)

- Make stronger test in zconf.h to include unistd.h for LFS

- Apply Darwin patches for 64-bit file offsets to contrib/minizip [Slack]

- Fix zlib.h LFS support when Z_PREFIX used

- Add updated as400 support (removed from old) [Monnerat]

- Avoid deflate sensitivity to volatile input data

- Avoid division in adler32_combine for NO_DIVIDE

- Clarify the use of Z_FINISH with deflateBound() amount of space

- Set binary for output file in puff.c

- Use u4 type for crc_table to avoid conversion warnings

- Apply casts in zlib.h to avoid conversion warnings

- Add OF to prototypes for adler32_combine_ and crc32_combine_ [Miller]

- Improve inflateSync() documentation to note indeterminancy

- Add deflatePending() function to return the amount of pending output

- Correct the spelling of "specification" in FAQ [Randers-Pehrson]

- Add a check in configure for stdarg.h, use for gzprintf()

- Check that pointers fit in ints when gzprint() compiled old style

- Add dummy name before $(SHAREDLIBV) in Makefile [Bar-Lev, Bowler]

- Delete line in configure that adds -L. libz.a to LDFLAGS [Weigelt]

- Add debug records in assmebler code [Londer]

- Update RFC references to use http://tools.ietf.org/html/... [Li]

- Add --archs option, use of libtool to configure for Mac OS X [Borstel]

Changes in 1.2.5 (19 Apr 2010)

- Disable visibility attribute in win32/Makefile.gcc [Bar-Lev]

- Default to libdir as sharedlibdir in configure [Nieder]

- Update copyright dates on modified source files

- Update trees.c to be able to generate modified trees.h

- Exit configure for MinGW, suggesting win32/Makefile.gcc

- Check for NULL path in gz_open [Homurlu]

Changes in 1.2.4.5 (18 Apr 2010)

- Set sharedlibdir in configure [Torok]

- Set LDFLAGS in Makefile.in [Bar-Lev]

- Avoid mkdir objs race condition in Makefile.in [Bowler]

- Add ZLIB_INTERNAL in front of internal inter-module functions and arrays

- Define ZLIB_INTERNAL to hide internal functions and arrays for GNU C

- Don't use hidden attribute when it is a warning generator (e.g. Solaris)

Changes in 1.2.4.4 (18 Apr 2010)

- Fix CROSS_PREFIX executable testing, CHOST extract, mingw* [Torok]

- Undefine _LARGEFILE64_SOURCE in zconf.h if it is zero, but not if empty

- Try to use bash or ksh regardless of functionality of /bin/sh

- Fix configure incompatibility with NetBSD sh

- Remove attempt to run under bash or ksh since have better NetBSD fix

- Fix win32/Makefile.gcc for MinGW [Bar-Lev]

- Add diagnostic messages when using CROSS_PREFIX in configure

- Added --sharedlibdir option to configure [Weigelt]

- Use hidden visibility attribute when available [Frysinger]

Changes in 1.2.4.3 (10 Apr 2010)

- Only use CROSS_PREFIX in configure for ar and ranlib if they exist

- Use CROSS_PREFIX for nm [Bar-Lev]

- Assume _LARGEFILE64_SOURCE defined is equivalent to true

- Avoid use of undefined symbols in #if with && and ||

- Make *64 prototypes in gzguts.h consistent with functions

- Add -shared load option for MinGW in configure [Bowler]

- Move z_off64_t to public interface, use instead of off64_t

- Remove ! from shell test in configure (not portable to Solaris)

- Change +0 macro tests to -0 for possibly increased portability

Changes in 1.2.4.2 (9 Apr 2010)

- Add consistent carriage returns to readme.txt's in masmx86 and masmx64

- Really provide prototypes for *64 functions when building without LFS

- Only define unlink() in minigzip.c if unistd.h not included

- Update README to point to contrib/vstudio project files

- Move projects/vc6 to old/ and remove projects/

- Include stdlib.h in minigzip.c for setmode() definition under WinCE

- Clean up assembler builds in win32/Makefile.msc [Rowe]

- Include sys/types.h for Microsoft for off_t definition

- Fix memory leak on error in gz_open()

- Symbolize nm as $NM in configure [Weigelt]

- Use TEST_LDSHARED instead of LDSHARED to link test programs [Weigelt]

- Add +0 to _FILE_OFFSET_BITS and _LFS64_LARGEFILE in case not defined

- Fix bug in gzeof() to take into account unused input data

- Avoid initialization of structures with variables in puff.c

- Updated win32/README-WIN32.txt [Rowe]

Changes in 1.2.4.1 (28 Mar 2010)

- Remove the use of [a-z] constructs for sed in configure [gentoo 310225]

- Remove $(SHAREDLIB) from LIBS in Makefile.in [Creech]

- Restore "for debugging" comment on sprintf() in gzlib.c

- Remove fdopen for MVS from gzguts.h

- Put new README-WIN32.txt in win32 [Rowe]

- Add check for shell to configure and invoke another shell if needed

- Fix big fat stinking bug in gzseek() on uncompressed files

- Remove vestigial F_OPEN64 define in zutil.h

- Set and check the value of _LARGEFILE_SOURCE and _LARGEFILE64_SOURCE

- Avoid errors on non-LFS systems when applications define LFS macros

- Set EXE to ".exe" in configure for MINGW [Kahle]

- Match crc32() in crc32.c exactly to the prototype in zlib.h [Sherrill]

- Add prefix for cross-compilation in win32/makefile.gcc [Bar-Lev]

- Add DLL install in win32/makefile.gcc [Bar-Lev]

- Allow Linux* or linux* from uname in configure [Bar-Lev]

- Allow ldconfig to be redefined in configure and Makefile.in [Bar-Lev]

- Add cross-compilation prefixes to configure [Bar-Lev]

- Match type exactly in gz_load() invocation in gzread.c

- Match type exactly of zcalloc() in zutil.c to zlib.h alloc_func

- Provide prototypes for *64 functions when building zlib without LFS

- Don't use -lc when linking shared library on MinGW

- Remove errno.h check in configure and vestigial errno code in zutil.h

Changes in 1.2.4 (14 Mar 2010)

- Fix VER3 extraction in configure for no fourth subversion

- Update zlib.3, add docs to Makefile.in to make .pdf out of it

- Add zlib.3.pdf to distribution

- Don't set error code in gzerror() if passed pointer is NULL

- Apply destination directory fixes to CMakeLists.txt [Lowman]

- Move #cmakedefine's to a new zconf.in.cmakein

- Restore zconf.h for builds that don't use configure or cmake

- Add distclean to dummy Makefile for convenience

- Update and improve INDEX, README, and FAQ

- Update CMakeLists.txt for the return of zconf.h [Lowman]

- Update contrib/vstudio/vc9 and vc10 [Vollant]

- Change libz.dll.a back to libzdll.a in win32/Makefile.gcc

- Apply license and readme changes to contrib/asm686 [Raiter]

- Check file name lengths and add -c option in minigzip.c [Li]

- Update contrib/amd64 and contrib/masmx86/ [Vollant]

- Avoid use of "eof" parameter in trees.c to not shadow library variable

- Update make_vms.com for removal of zlibdefs.h [Zinser]

- Update assembler code and vstudio projects in contrib [Vollant]

- Remove outdated assembler code contrib/masm686 and contrib/asm586

- Remove old vc7 and vc8 from contrib/vstudio

- Update win32/Makefile.msc, add ZLIB_VER_SUBREVISION [Rowe]

- Fix memory leaks in gzclose_r() and gzclose_w(), file leak in gz_open()

- Add contrib/gcc_gvmat64 for longest_match and inflate_fast [Vollant]

- Remove *64 functions from win32/zlib.def (they're not 64-bit yet)

- Fix bug in void-returning vsprintf() case in gzwrite.c

- Fix name change from inflate.h in contrib/inflate86/inffas86.c

- Check if temporary file exists before removing in make_vms.com [Zinser]

- Fix make install and uninstall for --static option

- Fix usage of _MSC_VER in gzguts.h and zutil.h [Truta]

- Update readme.txt in contrib/masmx64 and masmx86 to assemble

Changes in 1.2.3.9 (21 Feb 2010)

- Expunge gzio.c

- Move as400 build information to old

- Fix updates in contrib/minizip and contrib/vstudio

- Add const to vsnprintf test in configure to avoid warnings [Weigelt]

- Delete zconf.h (made by configure) [Weigelt]

- Change zconf.in.h to zconf.h.in per convention [Weigelt]

- Check for NULL buf in gzgets()

- Return empty string for gzgets() with len == 1 (like fgets())

- Fix description of gzgets() in zlib.h for end-of-file, NULL return

- Update minizip to 1.1 [Vollant]

- Avoid MSVC loss of data warnings in gzread.c, gzwrite.c

- Note in zlib.h that gzerror() should be used to distinguish from EOF

- Remove use of snprintf() from gzlib.c

- Fix bug in gzseek()

- Update contrib/vstudio, adding vc9 and vc10 [Kuno, Vollant]

- Fix zconf.h generation in CMakeLists.txt [Lowman]

- Improve comments in zconf.h where modified by configure

Changes in 1.2.3.8 (13 Feb 2010)

- Clean up text files (tabs, trailing whitespace, etc.) [Oberhumer]

- Use z_off64_t in gz_zero() and gz_skip() to match state->skip

- Avoid comparison problem when sizeof(int) == sizeof(z_off64_t)

- Revert to Makefile.in from 1.2.3.6 (live with the clutter)

- Fix missing error return in gzflush(), add zlib.h note

- Add *64 functions to zlib.map [Levin]

- Fix signed/unsigned comparison in gz_comp()

- Use SFLAGS when testing shared linking in configure

- Add --64 option to ./configure to use -m64 with gcc

- Fix ./configure --help to correctly name options

- Have make fail if a test fails [Levin]

- Avoid buffer overrun in contrib/masmx64/gvmat64.asm [Simpson]

- Remove assembler object files from contrib

Changes in 1.2.3.7 (24 Jan 2010)

- Always gzopen() with O_LARGEFILE if available

- Fix gzdirect() to work immediately after gzopen() or gzdopen()

- Make gzdirect() more precise when the state changes while reading

- Improve zlib.h documentation in many places

- Catch memory allocation failure in gz_open()

- Complete close operation if seek forward in gzclose_w() fails

- Return Z_ERRNO from gzclose_r() if close() fails

- Return Z_STREAM_ERROR instead of EOF for gzclose() being passed NULL

- Return zero for gzwrite() errors to match zlib.h description

- Return -1 on gzputs() error to match zlib.h description

- Add zconf.in.h to allow recovery from configure modification [Weigelt]

- Fix static library permissions in Makefile.in [Weigelt]

- Avoid warnings in configure tests that hide functionality [Weigelt]

- Add *BSD and DragonFly to Linux case in configure [gentoo 123571]

- Change libzdll.a to libz.dll.a in win32/Makefile.gcc [gentoo 288212]

- Avoid access of uninitialized data for first inflateReset2 call [Gomes]

- Keep object files in subdirectories to reduce the clutter somewhat

- Remove default Makefile and zlibdefs.h, add dummy Makefile

- Add new external functions to Z_PREFIX, remove duplicates, z_z_ -> z_

- Remove zlibdefs.h completely -- modify zconf.h instead

Changes in 1.2.3.6 (17 Jan 2010)

- Avoid void * arithmetic in gzread.c and gzwrite.c

- Make compilers happier with const char * for gz_error message

- Avoid unused parameter warning in inflate.c

- Avoid signed-unsigned comparison warning in inflate.c

- Indent #pragma's for traditional C

- Fix usage of strwinerror() in glib.c, change to gz_strwinerror()

- Correct email address in configure for system options

- Update make_vms.com and add make_vms.com to contrib/minizip [Zinser]

- Update zlib.map [Brown]

- Fix Makefile.in for Solaris 10 make of example64 and minizip64 [Torok]

- Apply various fixes to CMakeLists.txt [Lowman]

- Add checks on len in gzread() and gzwrite()

- Add error message for no more room for gzungetc()

- Remove zlib version check in gzwrite()

- Defer compression of gzprintf() result until need to

- Use snprintf() in gzdopen() if available

- Remove USE_MMAP configuration determination (only used by minigzip)

- Remove examples/pigz.c (available separately)

- Update examples/gun.c to 1.6

Changes in 1.2.3.5 (8 Jan 2010)

- Add space after #if in zutil.h for some compilers

- Fix relatively harmless bug in deflate_fast() [Exarevsky]

- Fix same problem in deflate_slow()

- Add $(SHAREDLIBV) to LIBS in Makefile.in [Brown]

- Add deflate_rle() for faster Z_RLE strategy run-length encoding

- Add deflate_huff() for faster Z_HUFFMAN_ONLY encoding

- Change name of "write" variable in inffast.c to avoid library collisions

- Fix premature EOF from gzread() in gzio.c [Brown]

- Use zlib header window size if windowBits is 0 in inflateInit2()

- Remove compressBound() call in deflate.c to avoid linking compress.o

- Replace use of errno in gz* with functions, support WinCE [Alves]

- Provide alternative to perror() in minigzip.c for WinCE [Alves]

- Don't use _vsnprintf on later versions of MSVC [Lowman]

- Add CMake build script and input file [Lowman]

- Update contrib/minizip to 1.1 [Svensson, Vollant]

- Moved nintendods directory from contrib to .

- Replace gzio.c with a new set of routines with the same functionality

- Add gzbuffer(), gzoffset(), gzclose_r(), gzclose_w() as part of above

- Update contrib/minizip to 1.1b

- Change gzeof() to return 0 on error instead of -1 to agree with zlib.h

Changes in 1.2.3.4 (21 Dec 2009)

- Use old school .SUFFIXES in Makefile.in for FreeBSD compatibility

- Update comments in configure and Makefile.in for default --shared

- Fix test -z's in configure [Marquess]

- Build examplesh and minigzipsh when not testing

- Change NULL's to Z_NULL's in deflate.c and in comments in zlib.h

- Import LDFLAGS from the environment in configure

- Fix configure to populate SFLAGS with discovered CFLAGS options

- Adapt make_vms.com to the new Makefile.in [Zinser]

- Add zlib2ansi script for C++ compilation [Marquess]

- Add _FILE_OFFSET_BITS=64 test to make test (when applicable)

- Add AMD64 assembler code for longest match to contrib [Teterin]

- Include options from $SFLAGS when doing $LDSHARED

- Simplify 64-bit file support by introducing z_off64_t type

- Make shared object files in objs directory to work around old Sun cc

- Use only three-part version number for Darwin shared compiles

- Add rc option to ar in Makefile.in for when ./configure not run

- Add -WI,-rpath,. to LDFLAGS for OSF 1 V4*

- Set LD_LIBRARYN32_PATH for SGI IRIX shared compile

- Protect against _FILE_OFFSET_BITS being defined when compiling zlib

- Rename Makefile.in targets allstatic to static and allshared to shared

- Fix static and shared Makefile.in targets to be independent

- Correct error return bug in gz_open() by setting state [Brown]

- Put spaces before ;;'s in configure for better sh compatibility

- Add pigz.c (parallel implementation of gzip) to examples/

- Correct constant in crc32.c to UL [Leventhal]

- Reject negative lengths in crc32_combine()

- Add inflateReset2() function to work like inflateEnd()/inflateInit2()

- Include sys/types.h for _LARGEFILE64_SOURCE [Brown]

- Correct typo in doc/algorithm.txt [Janik]

- Fix bug in adler32_combine() [Zhu]

- Catch missing-end-of-block-code error in all inflates and in puff

Assures that random input to inflate eventually results in an error

- Added enough.c (calculation of ENOUGH for inftrees.h) to examples/

- Update ENOUGH and its usage to reflect discovered bounds

- Fix gzerror() error report on empty input file [Brown]

- Add ush casts in trees.c to avoid pedantic runtime errors

- Fix typo in zlib.h uncompress() description [Reiss]

- Correct inflate() comments with regard to automatic header detection

- Remove deprecation comment on Z_PARTIAL_FLUSH (it stays)

- Put new version of gzlog (2.0) in examples with interruption recovery

- Add puff compile option to permit invalid distance-too-far streams

- Add puff TEST command options, ability to read piped input

- Prototype the *64 functions in zlib.h when _FILE_OFFSET_BITS == 64, but

_LARGEFILE64_SOURCE not defined

- Fix Z_FULL_FLUSH to truly erase the past by resetting s->strstart

- Fix deflateSetDictionary() to use all 32K for output consistency

- Remove extraneous #define MIN_LOOKAHEAD in deflate.c (in deflate.h)

- Clear bytes after deflate lookahead to avoid use of uninitialized data

- Change a limit in inftrees.c to be more transparent to Coverity Prevent

- Update win32/zlib.def with exported symbols from zlib.h

- Correct spelling errors in zlib.h [Willem, Sobrado]

- Allow Z_BLOCK for deflate() to force a new block

- Allow negative bits in inflatePrime() to delete existing bit buffer

- Add Z_TREES flush option to inflate() to return at end of trees

- Add inflateMark() to return current state information for random access

- Add Makefile for NintendoDS to contrib [Costa]

- Add -w in configure compile tests to avoid spurious warnings [Beucler]

- Fix typos in zlib.h comments for deflateSetDictionary()

- Fix EOF detection in transparent gzread() [Maier]

Changes in 1.2.3.3 (2 October 2006)

- Make --shared the default for configure, add a --static option

- Add compile option to permit invalid distance-too-far streams

- Add inflateUndermine() function which is required to enable above

- Remove use of "this" variable name for C++ compatibility [Marquess]

- Add testing of shared library in make test, if shared library built

- Use ftello() and fseeko() if available instead of ftell() and fseek()

- Provide two versions of all functions that use the z_off_t type for

binary compatibility -- a normal version and a 64-bit offset version,

per the Large File Support Extension when _LARGEFILE64_SOURCE is

defined; use the 64-bit versions by default when _FILE_OFFSET_BITS

is defined to be 64

- Add a --uname= option to configure to perhaps help with cross-compiling

Changes in 1.2.3.2 (3 September 2006)

- Turn off silly Borland warnings [Hay]

- Use off64_t and define _LARGEFILE64_SOURCE when present

- Fix missing dependency on inffixed.h in Makefile.in

- Rig configure --shared to build both shared and static [Teredesai, Truta]

- Remove zconf.in.h and instead create a new zlibdefs.h file

- Fix contrib/minizip/unzip.c non-encrypted after encrypted [Vollant]

- Add treebuild.xml (see http://treebuild.metux.de/) [Weigelt]

Changes in 1.2.3.1 (16 August 2006)

- Add watcom directory with OpenWatcom make files [Daniel]

- Remove #undef of FAR in zconf.in.h for MVS [Fedtke]

- Update make_vms.com [Zinser]

- Use -fPIC for shared build in configure [Teredesai, Nicholson]

- Use only major version number for libz.so on IRIX and OSF1 [Reinholdtsen]

- Use fdopen() (not _fdopen()) for Interix in zutil.h [BŠck]

- Add some FAQ entries about the contrib directory

- Update the MVS question in the FAQ

- Avoid extraneous reads after EOF in gzio.c [Brown]

- Correct spelling of "successfully" in gzio.c [Randers-Pehrson]

- Add comments to zlib.h about gzerror() usage [Brown]

- Set extra flags in gzip header in gzopen() like deflate() does

- Make configure options more compatible with double-dash conventions

[Weigelt]

- Clean up compilation under Solaris SunStudio cc [Rowe, Reinholdtsen]

- Fix uninstall target in Makefile.in [Truta]

- Add pkgconfig support [Weigelt]

- Use $(DESTDIR) macro in Makefile.in [Reinholdtsen, Weigelt]

- Replace set_data_type() with a more accurate detect_data_type() in

trees.c, according to the txtvsbin.txt document [Truta]

- Swap the order of #include <stdio.h> and #include "zlib.h" in

gzio.c, example.c and minigzip.c [Truta]

- Shut up annoying VS2005 warnings about standard C deprecation [Rowe,

Truta] (where?)

- Fix target "clean" from win32/Makefile.bor [Truta]

- Create .pdb and .manifest files in win32/makefile.msc [Ziegler, Rowe]

- Update zlib www home address in win32/DLL_FAQ.txt [Truta]

- Update contrib/masmx86/inffas32.asm for VS2005 [Vollant, Van Wassenhove]

- Enable browse info in the "Debug" and "ASM Debug" configurations in

the Visual C++ 6 project, and set (non-ASM) "Debug" as default [Truta]

- Add pkgconfig support [Weigelt]

- Add ZLIB_VER_MAJOR, ZLIB_VER_MINOR and ZLIB_VER_REVISION in zlib.h,

for use in win32/zlib1.rc [Polushin, Rowe, Truta]

- Add a document that explains the new text detection scheme to

doc/txtvsbin.txt [Truta]

- Add rfc1950.txt, rfc1951.txt and rfc1952.txt to doc/ [Truta]

- Move algorithm.txt into doc/ [Truta]

- Synchronize FAQ with website

- Fix compressBound(), was low for some pathological cases [Fearnley]

- Take into account wrapper variations in deflateBound()

- Set examples/zpipe.c input and output to binary mode for Windows

- Update examples/zlib_how.html with new zpipe.c (also web site)

- Fix some warnings in examples/gzlog.c and examples/zran.c (it seems

that gcc became pickier in 4.0)

- Add zlib.map for Linux: "All symbols from zlib-1.1.4 remain

un-versioned, the patch adds versioning only for symbols introduced in

zlib-1.2.0 or later. It also declares as local those symbols which are

not designed to be exported." [Levin]

- Update Z_PREFIX list in zconf.in.h, add --zprefix option to configure

- Do not initialize global static by default in trees.c, add a response

NO_INIT_GLOBAL_POINTERS to initialize them if needed [Marquess]

- Don't use strerror() in gzio.c under WinCE [Yakimov]

- Don't use errno.h in zutil.h under WinCE [Yakimov]

- Move arguments for AR to its usage to allow replacing ar [Marot]

- Add HAVE_VISIBILITY_PRAGMA in zconf.in.h for Mozilla [Randers-Pehrson]

- Improve inflateInit() and inflateInit2() documentation

- Fix structure size comment in inflate.h

- Change configure help option from --h* to --help [Santos]

Changes in 1.2.3 (18 July 2005)

- Apply security vulnerability fixes to contrib/infback9 as well

- Clean up some text files (carriage returns, trailing space)

- Update testzlib, vstudio, masmx64, and masmx86 in contrib [Vollant]

Changes in 1.2.2.4 (11 July 2005)

- Add inflatePrime() function for starting inflation at bit boundary

- Avoid some Visual C warnings in deflate.c

- Avoid more silly Visual C warnings in inflate.c and inftrees.c for 64-bit

compile

- Fix some spelling errors in comments [Betts]

- Correct inflateInit2() error return documentation in zlib.h

- Add zran.c example of compressed data random access to examples

directory, shows use of inflatePrime()

- Fix cast for assignments to strm->state in inflate.c and infback.c

- Fix zlibCompileFlags() in zutil.c to use 1L for long shifts [Oberhumer]

- Move declarations of gf2 functions to right place in crc32.c [Oberhumer]

- Add cast in trees.c t avoid a warning [Oberhumer]

- Avoid some warnings in fitblk.c, gun.c, gzjoin.c in examples [Oberhumer]

- Update make_vms.com [Zinser]

- Initialize state->write in inflateReset() since copied in inflate_fast()

- Be more strict on incomplete code sets in inflate_table() and increase

ENOUGH and MAXD -- this repairs a possible security vulnerability for

invalid inflate input. Thanks to Tavis Ormandy and Markus Oberhumer for

discovering the vulnerability and providing test cases.

- Add ia64 support to configure for HP-UX [Smith]

- Add error return to gzread() for format or i/o error [Levin]

- Use malloc.h for OS/2 [Necasek]

Changes in 1.2.2.3 (27 May 2005)

- Replace 1U constants in inflate.c and inftrees.c for 64-bit compile

- Typecast fread() return values in gzio.c [Vollant]

- Remove trailing space in minigzip.c outmode (VC++ can't deal with it)

- Fix crc check bug in gzread() after gzungetc() [Heiner]

- Add the deflateTune() function to adjust internal compression parameters

- Add a fast gzip decompressor, gun.c, to examples (use of inflateBack)

- Remove an incorrect assertion in examples/zpipe.c

- Add C++ wrapper in infback9.h [Donais]

- Fix bug in inflateCopy() when decoding fixed codes

- Note in zlib.h how much deflateSetDictionary() actually uses

- Remove USE_DICT_HEAD in deflate.c (would mess up inflate if used)

- Add _WIN32_WCE to define WIN32 in zconf.in.h [Spencer]

- Don't include stderr.h or errno.h for _WIN32_WCE in zutil.h [Spencer]

- Add gzdirect() function to indicate transparent reads

- Update contrib/minizip [Vollant]

- Fix compilation of deflate.c when both ASMV and FASTEST [Oberhumer]

- Add casts in crc32.c to avoid warnings [Oberhumer]

- Add contrib/masmx64 [Vollant]

- Update contrib/asm586, asm686, masmx86, testzlib, vstudio [Vollant]

Changes in 1.2.2.2 (30 December 2004)

- Replace structure assignments in deflate.c and inflate.c with zmemcpy to

avoid implicit memcpy calls (portability for no-library compilation)

- Increase sprintf() buffer size in gzdopen() to allow for large numbers

- Add INFLATE_STRICT to check distances against zlib header

- Improve WinCE errno handling and comments [Chang]

- Remove comment about no gzip header processing in FAQ

- Add Z_FIXED strategy option to deflateInit2() to force fixed trees

- Add updated make_vms.com [Coghlan], update README

- Create a new "examples" directory, move gzappend.c there, add zpipe.c,

fitblk.c, gzlog.[ch], gzjoin.c, and zlib_how.html.

- Add FAQ entry and comments in deflate.c on uninitialized memory access

- Add Solaris 9 make options in configure [Gilbert]

- Allow strerror() usage in gzio.c for STDC

- Fix DecompressBuf in contrib/delphi/ZLib.pas [ManChesTer]

- Update contrib/masmx86/inffas32.asm and gvmat32.asm [Vollant]

- Use z_off_t for adler32_combine() and crc32_combine() lengths

- Make adler32() much faster for small len

- Use OS_CODE in deflate() default gzip header

Changes in 1.2.2.1 (31 October 2004)

- Allow inflateSetDictionary() call for raw inflate

- Fix inflate header crc check bug for file names and comments

- Add deflateSetHeader() and gz_header structure for custom gzip headers

- Add inflateGetheader() to retrieve gzip headers

- Add crc32_combine() and adler32_combine() functions

- Add alloc_func, free_func, in_func, out_func to Z_PREFIX list

- Use zstreamp consistently in zlib.h (inflate_back functions)

- Remove GUNZIP condition from definition of inflate_mode in inflate.h

and in contrib/inflate86/inffast.S [Truta, Anderson]

- Add support for AMD64 in contrib/inflate86/inffas86.c [Anderson]

- Update projects/README.projects and projects/visualc6 [Truta]

- Update win32/DLL_FAQ.txt [Truta]

- Avoid warning under NO_GZCOMPRESS in gzio.c; fix typo [Truta]

- Deprecate Z_ASCII; use Z_TEXT instead [Truta]

- Use a new algorithm for setting strm->data_type in trees.c [Truta]

- Do not define an exit() prototype in zutil.c unless DEBUG defined

- Remove prototype of exit() from zutil.c, example.c, minigzip.c [Truta]

- Add comment in zlib.h for Z_NO_FLUSH parameter to deflate()

- Fix Darwin build version identification [Peterson]

Changes in 1.2.2 (3 October 2004)

- Update zlib.h comments on gzip in-memory processing

- Set adler to 1 in inflateReset() to support Java test suite [Walles]

- Add contrib/dotzlib [Ravn]

- Update win32/DLL_FAQ.txt [Truta]

- Update contrib/minizip [Vollant]

- Move contrib/visual-basic.txt to old/ [Truta]

- Fix assembler builds in projects/visualc6/ [Truta]

Changes in 1.2.1.2 (9 September 2004)

- Update INDEX file

- Fix trees.c to update strm->data_type (no one ever noticed!)

- Fix bug in error case in inflate.c, infback.c, and infback9.c [Brown]

- Add "volatile" to crc table flag declaration (for DYNAMIC_CRC_TABLE)

- Add limited multitasking protection to DYNAMIC_CRC_TABLE

- Add NO_vsnprintf for VMS in zutil.h [Mozilla]

- Don't declare strerror() under VMS [Mozilla]

- Add comment to DYNAMIC_CRC_TABLE to use get_crc_table() to initialize

- Update contrib/ada [Anisimkov]

- Update contrib/minizip [Vollant]

- Fix configure to not hardcode directories for Darwin [Peterson]

- Fix gzio.c to not return error on empty files [Brown]

- Fix indentation; update version in contrib/delphi/ZLib.pas and

contrib/pascal/zlibpas.pas [Truta]

- Update mkasm.bat in contrib/masmx86 [Truta]

- Update contrib/untgz [Truta]

- Add projects/README.projects [Truta]

- Add project for MS Visual C++ 6.0 in projects/visualc6 [Cadieux, Truta]

- Update win32/DLL_FAQ.txt [Truta]

- Update list of Z_PREFIX symbols in zconf.h [Randers-Pehrson, Truta]

- Remove an unnecessary assignment to curr in inftrees.c [Truta]

- Add OS/2 to exe builds in configure [Poltorak]

- Remove err dummy parameter in zlib.h [Kientzle]

Changes in 1.2.1.1 (9 January 2004)

- Update email address in README

- Several FAQ updates

- Fix a big fat bug in inftrees.c that prevented decoding valid

dynamic blocks with only literals and no distance codes --

Thanks to "Hot Emu" for the bug report and sample file

- Add a note to puff.c on no distance codes case.

Changes in 1.2.1 (17 November 2003)

- Remove a tab in contrib/gzappend/gzappend.c

- Update some interfaces in contrib for new zlib functions

- Update zlib version number in some contrib entries

- Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta]

- Support shared libraries on Hurd and KFreeBSD [Brown]

- Fix error in NO_DIVIDE option of adler32.c

Changes in 1.2.0.8 (4 November 2003)

- Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas

- Add experimental NO_DIVIDE #define in adler32.c

- Possibly faster on some processors (let me know if it is)

- Correct Z_BLOCK to not return on first inflate call if no wrap

- Fix strm->data_type on inflate() return to correctly indicate EOB

- Add deflatePrime() function for appending in the middle of a byte

- Add contrib/gzappend for an example of appending to a stream

- Update win32/DLL_FAQ.txt [Truta]

- Delete Turbo C comment in README [Truta]

- Improve some indentation in zconf.h [Truta]

- Fix infinite loop on bad input in configure script [Church]

- Fix gzeof() for concatenated gzip files [Johnson]

- Add example to contrib/visual-basic.txt [Michael B.]

- Add -p to mkdir's in Makefile.in [vda]

- Fix configure to properly detect presence or lack of printf functions

- Add AS400 support [Monnerat]

- Add a little Cygwin support [Wilson]

Changes in 1.2.0.7 (21 September 2003)

- Correct some debug formats in contrib/infback9

- Cast a type in a debug statement in trees.c

- Change search and replace delimiter in configure from % to # [Beebe]

- Update contrib/untgz to 0.2 with various fixes [Truta]

- Add build support for Amiga [Nikl]

- Remove some directories in old that have been updated to 1.2

- Add dylib building for Mac OS X in configure and Makefile.in

- Remove old distribution stuff from Makefile

- Update README to point to DLL_FAQ.txt, and add comment on Mac OS X

- Update links in README

Changes in 1.2.0.6 (13 September 2003)

- Minor FAQ updates

- Update contrib/minizip to 1.00 [Vollant]

- Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta]

- Update POSTINC comment for 68060 [Nikl]

- Add contrib/infback9 with deflate64 decoding (unsupported)

- For MVS define NO_vsnprintf and undefine FAR [van Burik]

- Add pragma for fdopen on MVS [van Burik]

Changes in 1.2.0.5 (8 September 2003)

- Add OF to inflateBackEnd() declaration in zlib.h

- Remember start when using gzdopen in the middle of a file

- Use internal off_t counters in gz* functions to properly handle seeks

- Perform more rigorous check for distance-too-far in inffast.c

- Add Z_BLOCK flush option to return from inflate at block boundary

- Set strm->data_type on return from inflate

- Indicate bits unused, if at block boundary, and if in last block

- Replace size_t with ptrdiff_t in crc32.c, and check for correct size

- Add condition so old NO_DEFLATE define still works for compatibility

- FAQ update regarding the Windows DLL [Truta]

- INDEX update: add qnx entry, remove aix entry [Truta]

- Install zlib.3 into mandir [Wilson]

- Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta]

- Adapt the zlib interface to the new DLL convention guidelines [Truta]

- Introduce ZLIB_WINAPI macro to allow the export of functions using

the WINAPI calling convention, for Visual Basic [Vollant, Truta]

- Update msdos and win32 scripts and makefiles [Truta]

- Export symbols by name, not by ordinal, in win32/zlib.def [Truta]

- Add contrib/ada [Anisimkov]

- Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta]

- Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant]

- Add contrib/masm686 [Truta]

- Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm

[Truta, Vollant]

- Update contrib/delphi; rename to contrib/pascal; add example [Truta]

- Remove contrib/delphi2; add a new contrib/delphi [Truta]

- Avoid inclusion of the nonstandard <memory.h> in contrib/iostream,

and fix some method prototypes [Truta]

- Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip

[Truta]

- Avoid the use of backslash (\) in contrib/minizip [Vollant]

- Fix file time handling in contrib/untgz; update makefiles [Truta]

- Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines

[Vollant]

- Remove contrib/vstudio/vc15_16 [Vollant]

- Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta]

- Update README.contrib [Truta]

- Invert the assignment order of match_head and s->prev[...] in

INSERT_STRING [Truta]

- Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings

[Truta]

- Compare function pointers with 0, not with NULL or Z_NULL [Truta]

- Fix prototype of syncsearch in inflate.c [Truta]

- Introduce ASMINF macro to be enabled when using an ASM implementation

of inflate_fast [Truta]

- Change NO_DEFLATE to NO_GZCOMPRESS [Truta]

- Modify test_gzio in example.c to take a single file name as a

parameter [Truta]

- Exit the example.c program if gzopen fails [Truta]

- Add type casts around strlen in example.c [Truta]

- Remove casting to sizeof in minigzip.c; give a proper type

to the variable compared with SUFFIX_LEN [Truta]

- Update definitions of STDC and STDC99 in zconf.h [Truta]

- Synchronize zconf.h with the new Windows DLL interface [Truta]

- Use SYS16BIT instead of __32BIT__ to distinguish between

16- and 32-bit platforms [Truta]

- Use far memory allocators in small 16-bit memory models for

Turbo C [Truta]

- Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in

zlibCompileFlags [Truta]

- Cygwin has vsnprintf [Wilson]

- In Windows16, OS_CODE is 0, as in MSDOS [Truta]

- In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson]

Changes in 1.2.0.4 (10 August 2003)

- Minor FAQ updates

- Be more strict when checking inflateInit2's windowBits parameter

- Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well

- Add gzip wrapper option to deflateInit2 using windowBits

- Add updated QNX rule in configure and qnx directory [Bonnefoy]

- Make inflate distance-too-far checks more rigorous

- Clean up FAR usage in inflate

- Add casting to sizeof() in gzio.c and minigzip.c

Changes in 1.2.0.3 (19 July 2003)

- Fix silly error in gzungetc() implementation [Vollant]

- Update contrib/minizip and contrib/vstudio [Vollant]

- Fix printf format in example.c

- Correct cdecl support in zconf.in.h [Anisimkov]

- Minor FAQ updates

Changes in 1.2.0.2 (13 July 2003)

- Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons

- Attempt to avoid warnings in crc32.c for pointer-int conversion

- Add AIX to configure, remove aix directory [Bakker]

- Add some casts to minigzip.c

- Improve checking after insecure sprintf() or vsprintf() calls

- Remove #elif's from crc32.c

- Change leave label to inf_leave in inflate.c and infback.c to avoid

library conflicts

- Remove inflate gzip decoding by default--only enable gzip decoding by

special request for stricter backward compatibility

- Add zlibCompileFlags() function to return compilation information

- More typecasting in deflate.c to avoid warnings

- Remove leading underscore from _Capital #defines [Truta]

- Fix configure to link shared library when testing

- Add some Windows CE target adjustments [Mai]

- Remove #define ZLIB_DLL in zconf.h [Vollant]

- Add zlib.3 [Rodgers]

- Update RFC URL in deflate.c and algorithm.txt [Mai]

- Add zlib_dll_FAQ.txt to contrib [Truta]

- Add UL to some constants [Truta]

- Update minizip and vstudio [Vollant]

- Remove vestigial NEED_DUMMY_RETURN from zconf.in.h

- Expand use of NO_DUMMY_DECL to avoid all dummy structures

- Added iostream3 to contrib [Schwardt]

- Replace rewind() with fseek() for WinCE [Truta]

- Improve setting of zlib format compression level flags

- Report 0 for huffman and rle strategies and for level == 0 or 1

- Report 2 only for level == 6

- Only deal with 64K limit when necessary at compile time [Truta]

- Allow TOO_FAR check to be turned off at compile time [Truta]

- Add gzclearerr() function [Souza]

- Add gzungetc() function

Changes in 1.2.0.1 (17 March 2003)

- Add Z_RLE strategy for run-length encoding [Truta]

- When Z_RLE requested, restrict matches to distance one

- Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE

- Correct FASTEST compilation to allow level == 0

- Clean up what gets compiled for FASTEST

- Incorporate changes to zconf.in.h [Vollant]

- Refine detection of Turbo C need for dummy returns

- Refine ZLIB_DLL compilation

- Include additional header file on VMS for off_t typedef

- Try to use _vsnprintf where it supplants vsprintf [Vollant]

- Add some casts in inffast.c

- Enchance comments in zlib.h on what happens if gzprintf() tries to

write more than 4095 bytes before compression

- Remove unused state from inflateBackEnd()

- Remove exit(0) from minigzip.c, example.c

- Get rid of all those darn tabs

- Add "check" target to Makefile.in that does the same thing as "test"

- Add "mostlyclean" and "maintainer-clean" targets to Makefile.in

- Update contrib/inflate86 [Anderson]

- Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant]

- Add msdos and win32 directories with makefiles [Truta]

- More additions and improvements to the FAQ

Changes in 1.2.0 (9 March 2003)

- New and improved inflate code

- About 20% faster

- Does not allocate 32K window unless and until needed

- Automatically detects and decompresses gzip streams

- Raw inflate no longer needs an extra dummy byte at end

- Added inflateBack functions using a callback interface--even faster

than inflate, useful for file utilities (gzip, zip)

- Added inflateCopy() function to record state for random access on

externally generated deflate streams (e.g. in gzip files)

- More readable code (I hope)

- New and improved crc32()

- About 50% faster, thanks to suggestions from Rodney Brown

- Add deflateBound() and compressBound() functions

- Fix memory leak in deflateInit2()

- Permit setting dictionary for raw deflate (for parallel deflate)

- Fix const declaration for gzwrite()

- Check for some malloc() failures in gzio.c

- Fix bug in gzopen() on single-byte file 0x1f

- Fix bug in gzread() on concatenated file with 0x1f at end of buffer

and next buffer doesn't start with 0x8b

- Fix uncompress() to return Z_DATA_ERROR on truncated input

- Free memory at end of example.c

- Remove MAX #define in trees.c (conflicted with some libraries)

- Fix static const's in deflate.c, gzio.c, and zutil.[ch]

- Declare malloc() and free() in gzio.c if STDC not defined

- Use malloc() instead of calloc() in zutil.c if int big enough

- Define STDC for AIX

- Add aix/ with approach for compiling shared library on AIX

- Add HP-UX support for shared libraries in configure

- Add OpenUNIX support for shared libraries in configure

- Use $cc instead of gcc to build shared library

- Make prefix directory if needed when installing

- Correct Macintosh avoidance of typedef Byte in zconf.h

- Correct Turbo C memory allocation when under Linux

- Use libz.a instead of -lz in Makefile (assure use of compiled library)

- Update configure to check for snprintf or vsnprintf functions and their

return value, warn during make if using an insecure function

- Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that

is lost when library is used--resolution is to build new zconf.h

- Documentation improvements (in zlib.h):

- Document raw deflate and inflate

- Update RFCs URL

- Point out that zlib and gzip formats are different

- Note that Z_BUF_ERROR is not fatal

- Document string limit for gzprintf() and possible buffer overflow

- Note requirement on avail_out when flushing

- Note permitted values of flush parameter of inflate()

- Add some FAQs (and even answers) to the FAQ

- Add contrib/inflate86/ for x86 faster inflate

- Add contrib/blast/ for PKWare Data Compression Library decompression

- Add contrib/puff/ simple inflate for deflate format description

Changes in 1.1.4 (11 March 2002)

- ZFREE was repeated on same allocation on some error conditions.

This creates a security problem described in