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source: vbox/trunk/src/libs/zlib-1.2.1/ChangeLog@ 11166

Last change on this file since 11166 was 6390, checked in by vboxsync, 17 years ago

export libpng and zlib so Windows and OS/2 builds cleanly.

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1
2 ChangeLog file for zlib
3
4Changes in 1.2.1 (17 November 2003)
5- Remove a tab in contrib/gzappend/gzappend.c
6- Update some interfaces in contrib for new zlib functions
7- Update zlib version number in some contrib entries
8- Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta]
9- Support shared libraries on Hurd and KFreeBSD [Brown]
10- Fix error in NO_DIVIDE option of adler32.c
11
12Changes in 1.2.0.8 (4 November 2003)
13- Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas
14- Add experimental NO_DIVIDE #define in adler32.c
15 - Possibly faster on some processors (let me know if it is)
16- Correct Z_BLOCK to not return on first inflate call if no wrap
17- Fix strm->data_type on inflate() return to correctly indicate EOB
18- Add deflatePrime() function for appending in the middle of a byte
19- Add contrib/gzappend for an example of appending to a stream
20- Update win32/DLL_FAQ.txt [Truta]
21- Delete Turbo C comment in README [Truta]
22- Improve some indentation in zconf.h [Truta]
23- Fix infinite loop on bad input in configure script [Church]
24- Fix gzeof() for concatenated gzip files [Johnson]
25- Add example to contrib/visual-basic.txt [Michael B.]
26- Add -p to mkdir's in Makefile.in [vda]
27- Fix configure to properly detect presence or lack of printf functions
28- Add AS400 support [Monnerat]
29- Add a little Cygwin support [Wilson]
30
31Changes in 1.2.0.7 (21 September 2003)
32- Correct some debug formats in contrib/infback9
33- Cast a type in a debug statement in trees.c
34- Change search and replace delimiter in configure from % to # [Beebe]
35- Update contrib/untgz to 0.2 with various fixes [Truta]
36- Add build support for Amiga [Nikl]
37- Remove some directories in old that have been updated to 1.2
38- Add dylib building for Mac OS X in configure and Makefile.in
39- Remove old distribution stuff from Makefile
40- Update README to point to DLL_FAQ.txt, and add comment on Mac OS X
41- Update links in README
42
43Changes in 1.2.0.6 (13 September 2003)
44- Minor FAQ updates
45- Update contrib/minizip to 1.00 [Vollant]
46- Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta]
47- Update POSTINC comment for 68060 [Nikl]
48- Add contrib/infback9 with deflate64 decoding (unsupported)
49- For MVS define NO_vsnprintf and undefine FAR [van Burik]
50- Add pragma for fdopen on MVS [van Burik]
51
52Changes in 1.2.0.5 (8 September 2003)
53- Add OF to inflateBackEnd() declaration in zlib.h
54- Remember start when using gzdopen in the middle of a file
55- Use internal off_t counters in gz* functions to properly handle seeks
56- Perform more rigorous check for distance-too-far in inffast.c
57- Add Z_BLOCK flush option to return from inflate at block boundary
58- Set strm->data_type on return from inflate
59 - Indicate bits unused, if at block boundary, and if in last block
60- Replace size_t with ptrdiff_t in crc32.c, and check for correct size
61- Add condition so old NO_DEFLATE define still works for compatibility
62- FAQ update regarding the Windows DLL [Truta]
63- INDEX update: add qnx entry, remove aix entry [Truta]
64- Install zlib.3 into mandir [Wilson]
65- Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta]
66- Adapt the zlib interface to the new DLL convention guidelines [Truta]
67- Introduce ZLIB_WINAPI macro to allow the export of functions using
68 the WINAPI calling convention, for Visual Basic [Vollant, Truta]
69- Update msdos and win32 scripts and makefiles [Truta]
70- Export symbols by name, not by ordinal, in win32/zlib.def [Truta]
71- Add contrib/ada [Anisimkov]
72- Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta]
73- Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant]
74- Add contrib/masm686 [Truta]
75- Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm
76 [Truta, Vollant]
77- Update contrib/delphi; rename to contrib/pascal; add example [Truta]
78- Remove contrib/delphi2; add a new contrib/delphi [Truta]
79- Avoid inclusion of the nonstandard <memory.h> in contrib/iostream,
80 and fix some method prototypes [Truta]
81- Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip
82 [Truta]
83- Avoid the use of backslash (\) in contrib/minizip [Vollant]
84- Fix file time handling in contrib/untgz; update makefiles [Truta]
85- Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines
86 [Vollant]
87- Remove contrib/vstudio/vc15_16 [Vollant]
88- Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta]
89- Update README.contrib [Truta]
90- Invert the assignment order of match_head and s->prev[...] in
91 INSERT_STRING [Truta]
92- Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings
93 [Truta]
94- Compare function pointers with 0, not with NULL or Z_NULL [Truta]
95- Fix prototype of syncsearch in inflate.c [Truta]
96- Introduce ASMINF macro to be enabled when using an ASM implementation
97 of inflate_fast [Truta]
98- Change NO_DEFLATE to NO_GZCOMPRESS [Truta]
99- Modify test_gzio in example.c to take a single file name as a
100 parameter [Truta]
101- Exit the example.c program if gzopen fails [Truta]
102- Add type casts around strlen in example.c [Truta]
103- Remove casting to sizeof in minigzip.c; give a proper type
104 to the variable compared with SUFFIX_LEN [Truta]
105- Update definitions of STDC and STDC99 in zconf.h [Truta]
106- Synchronize zconf.h with the new Windows DLL interface [Truta]
107- Use SYS16BIT instead of __32BIT__ to distinguish between
108 16- and 32-bit platforms [Truta]
109- Use far memory allocators in small 16-bit memory models for
110 Turbo C [Truta]
111- Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in
112 zlibCompileFlags [Truta]
113- Cygwin has vsnprintf [Wilson]
114- In Windows16, OS_CODE is 0, as in MSDOS [Truta]
115- In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson]
116
117Changes in 1.2.0.4 (10 August 2003)
118- Minor FAQ updates
119- Be more strict when checking inflateInit2's windowBits parameter
120- Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well
121- Add gzip wrapper option to deflateInit2 using windowBits
122- Add updated QNX rule in configure and qnx directory [Bonnefoy]
123- Make inflate distance-too-far checks more rigorous
124- Clean up FAR usage in inflate
125- Add casting to sizeof() in gzio.c and minigzip.c
126
127Changes in 1.2.0.3 (19 July 2003)
128- Fix silly error in gzungetc() implementation [Vollant]
129- Update contrib/minizip and contrib/vstudio [Vollant]
130- Fix printf format in example.c
131- Correct cdecl support in zconf.in.h [Anisimkov]
132- Minor FAQ updates
133
134Changes in 1.2.0.2 (13 July 2003)
135- Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons
136- Attempt to avoid warnings in crc32.c for pointer-int conversion
137- Add AIX to configure, remove aix directory [Bakker]
138- Add some casts to minigzip.c
139- Improve checking after insecure sprintf() or vsprintf() calls
140- Remove #elif's from crc32.c
141- Change leave label to inf_leave in inflate.c and infback.c to avoid
142 library conflicts
143- Remove inflate gzip decoding by default--only enable gzip decoding by
144 special request for stricter backward compatibility
145- Add zlibCompileFlags() function to return compilation information
146- More typecasting in deflate.c to avoid warnings
147- Remove leading underscore from _Capital #defines [Truta]
148- Fix configure to link shared library when testing
149- Add some Windows CE target adjustments [Mai]
150- Remove #define ZLIB_DLL in zconf.h [Vollant]
151- Add zlib.3 [Rodgers]
152- Update RFC URL in deflate.c and algorithm.txt [Mai]
153- Add zlib_dll_FAQ.txt to contrib [Truta]
154- Add UL to some constants [Truta]
155- Update minizip and vstudio [Vollant]
156- Remove vestigial NEED_DUMMY_RETURN from zconf.in.h
157- Expand use of NO_DUMMY_DECL to avoid all dummy structures
158- Added iostream3 to contrib [Schwardt]
159- Replace rewind() with fseek() for WinCE [Truta]
160- Improve setting of zlib format compression level flags
161 - Report 0 for huffman and rle strategies and for level == 0 or 1
162 - Report 2 only for level == 6
163- Only deal with 64K limit when necessary at compile time [Truta]
164- Allow TOO_FAR check to be turned off at compile time [Truta]
165- Add gzclearerr() function [Souza]
166- Add gzungetc() function
167
168Changes in 1.2.0.1 (17 March 2003)
169- Add Z_RLE strategy for run-length encoding [Truta]
170 - When Z_RLE requested, restrict matches to distance one
171 - Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE
172- Correct FASTEST compilation to allow level == 0
173- Clean up what gets compiled for FASTEST
174- Incorporate changes to zconf.in.h [Vollant]
175 - Refine detection of Turbo C need for dummy returns
176 - Refine ZLIB_DLL compilation
177 - Include additional header file on VMS for off_t typedef
178- Try to use _vsnprintf where it supplants vsprintf [Vollant]
179- Add some casts in inffast.c
180- Enchance comments in zlib.h on what happens if gzprintf() tries to
181 write more than 4095 bytes before compression
182- Remove unused state from inflateBackEnd()
183- Remove exit(0) from minigzip.c, example.c
184- Get rid of all those darn tabs
185- Add "check" target to Makefile.in that does the same thing as "test"
186- Add "mostlyclean" and "maintainer-clean" targets to Makefile.in
187- Update contrib/inflate86 [Anderson]
188- Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant]
189- Add msdos and win32 directories with makefiles [Truta]
190- More additions and improvements to the FAQ
191
192Changes in 1.2.0 (9 March 2003)
193- New and improved inflate code
194 - About 20% faster
195 - Does not allocate 32K window unless and until needed
196 - Automatically detects and decompresses gzip streams
197 - Raw inflate no longer needs an extra dummy byte at end
198 - Added inflateBack functions using a callback interface--even faster
199 than inflate, useful for file utilities (gzip, zip)
200 - Added inflateCopy() function to record state for random access on
201 externally generated deflate streams (e.g. in gzip files)
202 - More readable code (I hope)
203- New and improved crc32()
204 - About 50% faster, thanks to suggestions from Rodney Brown
205- Add deflateBound() and compressBound() functions
206- Fix memory leak in deflateInit2()
207- Permit setting dictionary for raw deflate (for parallel deflate)
208- Fix const declaration for gzwrite()
209- Check for some malloc() failures in gzio.c
210- Fix bug in gzopen() on single-byte file 0x1f
211- Fix bug in gzread() on concatenated file with 0x1f at end of buffer
212 and next buffer doesn't start with 0x8b
213- Fix uncompress() to return Z_DATA_ERROR on truncated input
214- Free memory at end of example.c
215- Remove MAX #define in trees.c (conflicted with some libraries)
216- Fix static const's in deflate.c, gzio.c, and zutil.[ch]
217- Declare malloc() and free() in gzio.c if STDC not defined
218- Use malloc() instead of calloc() in zutil.c if int big enough
219- Define STDC for AIX
220- Add aix/ with approach for compiling shared library on AIX
221- Add HP-UX support for shared libraries in configure
222- Add OpenUNIX support for shared libraries in configure
223- Use $cc instead of gcc to build shared library
224- Make prefix directory if needed when installing
225- Correct Macintosh avoidance of typedef Byte in zconf.h
226- Correct Turbo C memory allocation when under Linux
227- Use libz.a instead of -lz in Makefile (assure use of compiled library)
228- Update configure to check for snprintf or vsnprintf functions and their
229 return value, warn during make if using an insecure function
230- Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that
231 is lost when library is used--resolution is to build new zconf.h
232- Documentation improvements (in zlib.h):
233 - Document raw deflate and inflate
234 - Update RFCs URL
235 - Point out that zlib and gzip formats are different
236 - Note that Z_BUF_ERROR is not fatal
237 - Document string limit for gzprintf() and possible buffer overflow
238 - Note requirement on avail_out when flushing
239 - Note permitted values of flush parameter of inflate()
240- Add some FAQs (and even answers) to the FAQ
241- Add contrib/inflate86/ for x86 faster inflate
242- Add contrib/blast/ for PKWare Data Compression Library decompression
243- Add contrib/puff/ simple inflate for deflate format description
244
245Changes in 1.1.4 (11 March 2002)
246- ZFREE was repeated on same allocation on some error conditions.
247 This creates a security problem described in
248 http://www.zlib.org/advisory-2002-03-11.txt
249- Returned incorrect error (Z_MEM_ERROR) on some invalid data
250- Avoid accesses before window for invalid distances with inflate window
251 less than 32K.
252- force windowBits > 8 to avoid a bug in the encoder for a window size
253 of 256 bytes. (A complete fix will be available in 1.1.5).
254
255Changes in 1.1.3 (9 July 1998)
256- fix "an inflate input buffer bug that shows up on rare but persistent
257 occasions" (Mark)
258- fix gzread and gztell for concatenated .gz files (Didier Le Botlan)
259- fix gzseek(..., SEEK_SET) in write mode
260- fix crc check after a gzeek (Frank Faubert)
261- fix miniunzip when the last entry in a zip file is itself a zip file
262 (J Lillge)
263- add contrib/asm586 and contrib/asm686 (Brian Raiter)
264 See http://www.muppetlabs.com/~breadbox/software/assembly.html
265- add support for Delphi 3 in contrib/delphi (Bob Dellaca)
266- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)
267- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)
268- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)
269- added a FAQ file
270
271- Support gzdopen on Mac with Metrowerks (Jason Linhart)
272- Do not redefine Byte on Mac (Brad Pettit & Jason Linhart)
273- define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young)
274- avoid some warnings with Borland C (Tom Tanner)
275- fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant)
276- emulate utime() for WIN32 in contrib/untgz (Gilles Vollant)
277- allow several arguments to configure (Tim Mooney, Frodo Looijaard)
278- use libdir and includedir in Makefile.in (Tim Mooney)
279- support shared libraries on OSF1 V4 (Tim Mooney)
280- remove so_locations in "make clean" (Tim Mooney)
281- fix maketree.c compilation error (Glenn, Mark)
282- Python interface to zlib now in Python 1.5 (Jeremy Hylton)
283- new Makefile.riscos (Rich Walker)
284- initialize static descriptors in trees.c for embedded targets (Nick Smith)
285- use "foo-gz" in example.c for RISCOS and VMS (Nick Smith)
286- add the OS/2 files in Makefile.in too (Andrew Zabolotny)
287- fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane)
288- fix maketree.c to allow clean compilation of inffixed.h (Mark)
289- fix parameter check in deflateCopy (Gunther Nikl)
290- cleanup trees.c, use compressed_len only in debug mode (Christian Spieler)
291- Many portability patches by Christian Spieler:
292 . zutil.c, zutil.h: added "const" for zmem*
293 . Make_vms.com: fixed some typos
294 . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists
295 . msdos/Makefile.msc: remove "default rtl link library" info from obj files
296 . msdos/Makefile.*: use model-dependent name for the built zlib library
297 . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc:
298 new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT)
299- use define instead of typedef for Bytef also for MSC small/medium (Tom Lane)
300- replace __far with _far for better portability (Christian Spieler, Tom Lane)
301- fix test for errno.h in configure (Tim Newsham)
302
303Changes in 1.1.2 (19 March 98)
304- added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant)
305 See http://www.winimage.com/zLibDll/unzip.html
306- preinitialize the inflate tables for fixed codes, to make the code
307 completely thread safe (Mark)
308- some simplifications and slight speed-up to the inflate code (Mark)
309- fix gzeof on non-compressed files (Allan Schrum)
310- add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs)
311- use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn)
312- added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny)
313- add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori)
314- do not wrap extern "C" around system includes (Tom Lane)
315- mention zlib binding for TCL in README (Andreas Kupries)
316- added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert)
317- allow "make install prefix=..." even after configure (Glenn Randers-Pehrson)
318- allow "configure --prefix $HOME" (Tim Mooney)
319- remove warnings in example.c and gzio.c (Glenn Randers-Pehrson)
320- move Makefile.sas to amiga/Makefile.sas
321
322Changes in 1.1.1 (27 Feb 98)
323- fix macros _tr_tally_* in deflate.h for debug mode (Glenn Randers-Pehrson)
324- remove block truncation heuristic which had very marginal effect for zlib
325 (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the
326 compression ratio on some files. This also allows inlining _tr_tally for
327 matches in deflate_slow.
328- added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier)
329
330Changes in 1.1.0 (24 Feb 98)
331- do not return STREAM_END prematurely in inflate (John Bowler)
332- revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler)
333- compile with -DFASTEST to get compression code optimized for speed only
334- in minigzip, try mmap'ing the input file first (Miguel Albrecht)
335- increase size of I/O buffers in minigzip.c and gzio.c (not a big gain
336 on Sun but significant on HP)
337
338- add a pointer to experimental unzip library in README (Gilles Vollant)
339- initialize variable gcc in configure (Chris Herborth)
340
341Changes in 1.0.9 (17 Feb 1998)
342- added gzputs and gzgets functions
343- do not clear eof flag in gzseek (Mark Diekhans)
344- fix gzseek for files in transparent mode (Mark Diekhans)
345- do not assume that vsprintf returns the number of bytes written (Jens Krinke)
346- replace EXPORT with ZEXPORT to avoid conflict with other programs
347- added compress2 in zconf.h, zlib.def, zlib.dnt
348- new asm code from Gilles Vollant in contrib/asm386
349- simplify the inflate code (Mark):
350 . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new()
351 . ZALLOC the length list in inflate_trees_fixed() instead of using stack
352 . ZALLOC the value area for huft_build() instead of using stack
353 . Simplify Z_FINISH check in inflate()
354
355- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8
356- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi)
357- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with
358 the declaration of FAR (Gilles VOllant)
359- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann)
360- read_buf buf parameter of type Bytef* instead of charf*
361- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout)
362- do not redeclare unlink in minigzip.c for WIN32 (John Bowler)
363- fix check for presence of directories in "make install" (Ian Willis)
364
365Changes in 1.0.8 (27 Jan 1998)
366- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant)
367- fix gzgetc and gzputc for big endian systems (Markus Oberhumer)
368- added compress2() to allow setting the compression level
369- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong)
370- use constant arrays for the static trees in trees.c instead of computing
371 them at run time (thanks to Ken Raeburn for this suggestion). To create
372 trees.h, compile with GEN_TREES_H and run "make test".
373- check return code of example in "make test" and display result
374- pass minigzip command line options to file_compress
375- simplifying code of inflateSync to avoid gcc 2.8 bug
376
377- support CC="gcc -Wall" in configure -s (QingLong)
378- avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn)
379- fix test for shared library support to avoid compiler warnings
380- zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant)
381- check for TARGET_OS_MAC in addition to MACOS (Brad Pettit)
382- do not use fdopen for Metrowerks on Mac (Brad Pettit))
383- add checks for gzputc and gzputc in example.c
384- avoid warnings in gzio.c and deflate.c (Andreas Kleinert)
385- use const for the CRC table (Ken Raeburn)
386- fixed "make uninstall" for shared libraries
387- use Tracev instead of Trace in infblock.c
388- in example.c use correct compressed length for test_sync
389- suppress +vnocompatwarnings in configure for HPUX (not always supported)
390
391Changes in 1.0.7 (20 Jan 1998)
392- fix gzseek which was broken in write mode
393- return error for gzseek to negative absolute position
394- fix configure for Linux (Chun-Chung Chen)
395- increase stack space for MSC (Tim Wegner)
396- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant)
397- define EXPORTVA for gzprintf (Gilles Vollant)
398- added man page zlib.3 (Rick Rodgers)
399- for contrib/untgz, fix makedir() and improve Makefile
400
401- check gzseek in write mode in example.c
402- allocate extra buffer for seeks only if gzseek is actually called
403- avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant)
404- add inflateSyncPoint in zconf.h
405- fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def
406
407Changes in 1.0.6 (19 Jan 1998)
408- add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and
409 gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code)
410- Fix a deflate bug occuring only with compression level 0 (thanks to
411 Andy Buckler for finding this one).
412- In minigzip, pass transparently also the first byte for .Z files.
413- return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress()
414- check Z_FINISH in inflate (thanks to Marc Schluper)
415- Implement deflateCopy (thanks to Adam Costello)
416- make static libraries by default in configure, add --shared option.
417- move MSDOS or Windows specific files to directory msdos
418- suppress the notion of partial flush to simplify the interface
419 (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4)
420- suppress history buffer provided by application to simplify the interface
421 (this feature was not implemented anyway in 1.0.4)
422- next_in and avail_in must be initialized before calling inflateInit or
423 inflateInit2
424- add EXPORT in all exported functions (for Windows DLL)
425- added Makefile.nt (thanks to Stephen Williams)
426- added the unsupported "contrib" directory:
427 contrib/asm386/ by Gilles Vollant <[email protected]>
428 386 asm code replacing longest_match().
429 contrib/iostream/ by Kevin Ruland <[email protected]>
430 A C++ I/O streams interface to the zlib gz* functions
431 contrib/iostream2/ by Tyge Løvset <[email protected]>
432 Another C++ I/O streams interface
433 contrib/untgz/ by "Pedro A. Aranda Guti\irrez" <[email protected]>
434 A very simple tar.gz file extractor using zlib
435 contrib/visual-basic.txt by Carlos Rios <[email protected]>
436 How to use compress(), uncompress() and the gz* functions from VB.
437- pass params -f (filtered data), -h (huffman only), -1 to -9 (compression
438 level) in minigzip (thanks to Tom Lane)
439
440- use const for rommable constants in deflate
441- added test for gzseek and gztell in example.c
442- add undocumented function inflateSyncPoint() (hack for Paul Mackerras)
443- add undocumented function zError to convert error code to string
444 (for Tim Smithers)
445- Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code.
446- Use default memcpy for Symantec MSDOS compiler.
447- Add EXPORT keyword for check_func (needed for Windows DLL)
448- add current directory to LD_LIBRARY_PATH for "make test"
449- create also a link for libz.so.1
450- added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura)
451- use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX)
452- added -soname for Linux in configure (Chun-Chung Chen,
453- assign numbers to the exported functions in zlib.def (for Windows DLL)
454- add advice in zlib.h for best usage of deflateSetDictionary
455- work around compiler bug on Atari (cast Z_NULL in call of s->checkfn)
456- allow compilation with ANSI keywords only enabled for TurboC in large model
457- avoid "versionString"[0] (Borland bug)
458- add NEED_DUMMY_RETURN for Borland
459- use variable z_verbose for tracing in debug mode (L. Peter Deutsch).
460- allow compilation with CC
461- defined STDC for OS/2 (David Charlap)
462- limit external names to 8 chars for MVS (Thomas Lund)
463- in minigzip.c, use static buffers only for 16-bit systems
464- fix suffix check for "minigzip -d foo.gz"
465- do not return an error for the 2nd of two consecutive gzflush() (Felix Lee)
466- use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau)
467- added makelcc.bat for lcc-win32 (Tom St Denis)
468- in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe)
469- Avoid expanded $Id: ChangeLog,v 1.1 2004/11/15 16:42:25 bird Exp $. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion.
470- check for unistd.h in configure (for off_t)
471- remove useless check parameter in inflate_blocks_free
472- avoid useless assignment of s->check to itself in inflate_blocks_new
473- do not flush twice in gzclose (thanks to Ken Raeburn)
474- rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h
475- use NO_ERRNO_H instead of enumeration of operating systems with errno.h
476- work around buggy fclose on pipes for HP/UX
477- support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson)
478- fix configure if CC is already equal to gcc
479
480Changes in 1.0.5 (3 Jan 98)
481- Fix inflate to terminate gracefully when fed corrupted or invalid data
482- Use const for rommable constants in inflate
483- Eliminate memory leaks on error conditions in inflate
484- Removed some vestigial code in inflate
485- Update web address in README
486
487Changes in 1.0.4 (24 Jul 96)
488- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF
489 bit, so the decompressor could decompress all the correct data but went
490 on to attempt decompressing extra garbage data. This affected minigzip too.
491- zlibVersion and gzerror return const char* (needed for DLL)
492- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno)
493- use z_error only for DEBUG (avoid problem with DLLs)
494
495Changes in 1.0.3 (2 Jul 96)
496- use z_streamp instead of z_stream *, which is now a far pointer in MSDOS
497 small and medium models; this makes the library incompatible with previous
498 versions for these models. (No effect in large model or on other systems.)
499- return OK instead of BUF_ERROR if previous deflate call returned with
500 avail_out as zero but there is nothing to do
501- added memcmp for non STDC compilers
502- define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly)
503- define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO)
504- better check for 16-bit mode MSC (avoids problem with Symantec)
505
506Changes in 1.0.2 (23 May 96)
507- added Windows DLL support
508- added a function zlibVersion (for the DLL support)
509- fixed declarations using Bytef in infutil.c (pb with MSDOS medium model)
510- Bytef is define's instead of typedef'd only for Borland C
511- avoid reading uninitialized memory in example.c
512- mention in README that the zlib format is now RFC1950
513- updated Makefile.dj2
514- added algorithm.doc
515
516Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion]
517- fix array overlay in deflate.c which sometimes caused bad compressed data
518- fix inflate bug with empty stored block
519- fix MSDOS medium model which was broken in 0.99
520- fix deflateParams() which could generated bad compressed data.
521- Bytef is define'd instead of typedef'ed (work around Borland bug)
522- added an INDEX file
523- new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32),
524 Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas)
525- speed up adler32 for modern machines without auto-increment
526- added -ansi for IRIX in configure
527- static_init_done in trees.c is an int
528- define unlink as delete for VMS
529- fix configure for QNX
530- add configure branch for SCO and HPUX
531- avoid many warnings (unused variables, dead assignments, etc...)
532- no fdopen for BeOS
533- fix the Watcom fix for 32 bit mode (define FAR as empty)
534- removed redefinition of Byte for MKWERKS
535- work around an MWKERKS bug (incorrect merge of all .h files)
536
537Changes in 0.99 (27 Jan 96)
538- allow preset dictionary shared between compressor and decompressor
539- allow compression level 0 (no compression)
540- add deflateParams in zlib.h: allow dynamic change of compression level
541 and compression strategy.
542- test large buffers and deflateParams in example.c
543- add optional "configure" to build zlib as a shared library
544- suppress Makefile.qnx, use configure instead
545- fixed deflate for 64-bit systems (detected on Cray)
546- fixed inflate_blocks for 64-bit systems (detected on Alpha)
547- declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2)
548- always return Z_BUF_ERROR when deflate() has nothing to do
549- deflateInit and inflateInit are now macros to allow version checking
550- prefix all global functions and types with z_ with -DZ_PREFIX
551- make falloc completely reentrant (inftrees.c)
552- fixed very unlikely race condition in ct_static_init
553- free in reverse order of allocation to help memory manager
554- use zlib-1.0/* instead of zlib/* inside the tar.gz
555- make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith
556 -Wconversion -Wstrict-prototypes -Wmissing-prototypes"
557- allow gzread on concatenated .gz files
558- deflateEnd now returns Z_DATA_ERROR if it was premature
559- deflate is finally (?) fully deterministic (no matches beyond end of input)
560- Document Z_SYNC_FLUSH
561- add uninstall in Makefile
562- Check for __cpluplus in zlib.h
563- Better test in ct_align for partial flush
564- avoid harmless warnings for Borland C++
565- initialize hash_head in deflate.c
566- avoid warning on fdopen (gzio.c) for HP cc -Aa
567- include stdlib.h for STDC compilers
568- include errno.h for Cray
569- ignore error if ranlib doesn't exist
570- call ranlib twice for NeXTSTEP
571- use exec_prefix instead of prefix for libz.a
572- renamed ct_* as _tr_* to avoid conflict with applications
573- clear z->msg in inflateInit2 before any error return
574- initialize opaque in example.c, gzio.c, deflate.c and inflate.c
575- fixed typo in zconf.h (_GNUC__ => __GNUC__)
576- check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode)
577- fix typo in Make_vms.com (f$trnlnm -> f$getsyi)
578- in fcalloc, normalize pointer if size > 65520 bytes
579- don't use special fcalloc for 32 bit Borland C++
580- use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc...
581- use Z_BINARY instead of BINARY
582- document that gzclose after gzdopen will close the file
583- allow "a" as mode in gzopen.
584- fix error checking in gzread
585- allow skipping .gz extra-field on pipes
586- added reference to Perl interface in README
587- put the crc table in FAR data (I dislike more and more the medium model :)
588- added get_crc_table
589- added a dimension to all arrays (Borland C can't count).
590- workaround Borland C bug in declaration of inflate_codes_new & inflate_fast
591- guard against multiple inclusion of *.h (for precompiled header on Mac)
592- Watcom C pretends to be Microsoft C small model even in 32 bit mode.
593- don't use unsized arrays to avoid silly warnings by Visual C++:
594 warning C4746: 'inflate_mask' : unsized array treated as '__far'
595 (what's wrong with far data in far model?).
596- define enum out of inflate_blocks_state to allow compilation with C++
597
598Changes in 0.95 (16 Aug 95)
599- fix MSDOS small and medium model (now easier to adapt to any compiler)
600- inlined send_bits
601- fix the final (:-) bug for deflate with flush (output was correct but
602 not completely flushed in rare occasions).
603- default window size is same for compression and decompression
604 (it's now sufficient to set MAX_WBITS in zconf.h).
605- voidp -> voidpf and voidnp -> voidp (for consistency with other
606 typedefs and because voidnp was not near in large model).
607
608Changes in 0.94 (13 Aug 95)
609- support MSDOS medium model
610- fix deflate with flush (could sometimes generate bad output)
611- fix deflateReset (zlib header was incorrectly suppressed)
612- added support for VMS
613- allow a compression level in gzopen()
614- gzflush now calls fflush
615- For deflate with flush, flush even if no more input is provided.
616- rename libgz.a as libz.a
617- avoid complex expression in infcodes.c triggering Turbo C bug
618- work around a problem with gcc on Alpha (in INSERT_STRING)
619- don't use inline functions (problem with some gcc versions)
620- allow renaming of Byte, uInt, etc... with #define.
621- avoid warning about (unused) pointer before start of array in deflate.c
622- avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c
623- avoid reserved word 'new' in trees.c
624
625Changes in 0.93 (25 June 95)
626- temporarily disable inline functions
627- make deflate deterministic
628- give enough lookahead for PARTIAL_FLUSH
629- Set binary mode for stdin/stdout in minigzip.c for OS/2
630- don't even use signed char in inflate (not portable enough)
631- fix inflate memory leak for segmented architectures
632
633Changes in 0.92 (3 May 95)
634- don't assume that char is signed (problem on SGI)
635- Clear bit buffer when starting a stored block
636- no memcpy on Pyramid
637- suppressed inftest.c
638- optimized fill_window, put longest_match inline for gcc
639- optimized inflate on stored blocks.
640- untabify all sources to simplify patches
641
642Changes in 0.91 (2 May 95)
643- Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h
644- Document the memory requirements in zconf.h
645- added "make install"
646- fix sync search logic in inflateSync
647- deflate(Z_FULL_FLUSH) now works even if output buffer too short
648- after inflateSync, don't scare people with just "lo world"
649- added support for DJGPP
650
651Changes in 0.9 (1 May 95)
652- don't assume that zalloc clears the allocated memory (the TurboC bug
653 was Mark's bug after all :)
654- let again gzread copy uncompressed data unchanged (was working in 0.71)
655- deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented
656- added a test of inflateSync in example.c
657- moved MAX_WBITS to zconf.h because users might want to change that.
658- document explicitly that zalloc(64K) on MSDOS must return a normalized
659 pointer (zero offset)
660- added Makefiles for Microsoft C, Turbo C, Borland C++
661- faster crc32()
662
663Changes in 0.8 (29 April 95)
664- added fast inflate (inffast.c)
665- deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this
666 is incompatible with previous versions of zlib which returned Z_OK.
667- work around a TurboC compiler bug (bad code for b << 0, see infutil.h)
668 (actually that was not a compiler bug, see 0.81 above)
669- gzread no longer reads one extra byte in certain cases
670- In gzio destroy(), don't reference a freed structure
671- avoid many warnings for MSDOS
672- avoid the ERROR symbol which is used by MS Windows
673
674Changes in 0.71 (14 April 95)
675- Fixed more MSDOS compilation problems :( There is still a bug with
676 TurboC large model.
677
678Changes in 0.7 (14 April 95)
679- Added full inflate support.
680- Simplified the crc32() interface. The pre- and post-conditioning
681 (one's complement) is now done inside crc32(). WARNING: this is
682 incompatible with previous versions; see zlib.h for the new usage.
683
684Changes in 0.61 (12 April 95)
685- workaround for a bug in TurboC. example and minigzip now work on MSDOS.
686
687Changes in 0.6 (11 April 95)
688- added minigzip.c
689- added gzdopen to reopen a file descriptor as gzFile
690- added transparent reading of non-gziped files in gzread.
691- fixed bug in gzread (don't read crc as data)
692- fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose).
693- don't allocate big arrays in the stack (for MSDOS)
694- fix some MSDOS compilation problems
695
696Changes in 0.5:
697- do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but
698 not yet Z_FULL_FLUSH.
699- support decompression but only in a single step (forced Z_FINISH)
700- added opaque object for zalloc and zfree.
701- added deflateReset and inflateReset
702- added a variable zlib_version for consistency checking.
703- renamed the 'filter' parameter of deflateInit2 as 'strategy'.
704 Added Z_FILTERED and Z_HUFFMAN_ONLY constants.
705
706Changes in 0.4:
707- avoid "zip" everywhere, use zlib instead of ziplib.
708- suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush
709 if compression method == 8.
710- added adler32 and crc32
711- renamed deflateOptions as deflateInit2, call one or the other but not both
712- added the method parameter for deflateInit2.
713- added inflateInit2
714- simplied considerably deflateInit and inflateInit by not supporting
715 user-provided history buffer. This is supported only in deflateInit2
716 and inflateInit2.
717
718Changes in 0.3:
719- prefix all macro names with Z_
720- use Z_FINISH instead of deflateEnd to finish compression.
721- added Z_HUFFMAN_ONLY
722- added gzerror()
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