Annotation of embedaddon/rsync/zlib/ChangeLog, revision 1.1.1.1
1.1 misho 1:
2: ChangeLog file for zlib
3:
4: Changes in 1.2.3 (18 July 2005)
5: - Apply security vulnerability fixes to contrib/infback9 as well
6: - Clean up some text files (carriage returns, trailing space)
7: - Update testzlib, vstudio, masmx64, and masmx86 in contrib [Vollant]
8:
9: Changes in 1.2.2.4 (11 July 2005)
10: - Add inflatePrime() function for starting inflation at bit boundary
11: - Avoid some Visual C warnings in deflate.c
12: - Avoid more silly Visual C warnings in inflate.c and inftrees.c for 64-bit
13: compile
14: - Fix some spelling errors in comments [Betts]
15: - Correct inflateInit2() error return documentation in zlib.h
16: - Added zran.c example of compressed data random access to examples
17: directory, shows use of inflatePrime()
18: - Fix cast for assignments to strm->state in inflate.c and infback.c
19: - Fix zlibCompileFlags() in zutil.c to use 1L for long shifts [Oberhumer]
20: - Move declarations of gf2 functions to right place in crc32.c [Oberhumer]
21: - Add cast in trees.c t avoid a warning [Oberhumer]
22: - Avoid some warnings in fitblk.c, gun.c, gzjoin.c in examples [Oberhumer]
23: - Update make_vms.com [Zinser]
24: - Initialize state->write in inflateReset() since copied in inflate_fast()
25: - Be more strict on incomplete code sets in inflate_table() and increase
26: ENOUGH and MAXD -- this repairs a possible security vulnerability for
27: invalid inflate input. Thanks to Tavis Ormandy and Markus Oberhumer for
28: discovering the vulnerability and providing test cases.
29: - Add ia64 support to configure for HP-UX [Smith]
30: - Add error return to gzread() for format or i/o error [Levin]
31: - Use malloc.h for OS/2 [Necasek]
32:
33: Changes in 1.2.2.3 (27 May 2005)
34: - Replace 1U constants in inflate.c and inftrees.c for 64-bit compile
35: - Typecast fread() return values in gzio.c [Vollant]
36: - Remove trailing space in minigzip.c outmode (VC++ can't deal with it)
37: - Fix crc check bug in gzread() after gzungetc() [Heiner]
38: - Add the deflateTune() function to adjust internal compression parameters
39: - Add a fast gzip decompressor, gun.c, to examples (use of inflateBack)
40: - Remove an incorrect assertion in examples/zpipe.c
41: - Add C++ wrapper in infback9.h [Donais]
42: - Fix bug in inflateCopy() when decoding fixed codes
43: - Note in zlib.h how much deflateSetDictionary() actually uses
44: - Remove USE_DICT_HEAD in deflate.c (would mess up inflate if used)
45: - Add _WIN32_WCE to define WIN32 in zconf.in.h [Spencer]
46: - Don't include stderr.h or errno.h for _WIN32_WCE in zutil.h [Spencer]
47: - Add gzdirect() function to indicate transparent reads
48: - Update contrib/minizip [Vollant]
49: - Fix compilation of deflate.c when both ASMV and FASTEST [Oberhumer]
50: - Add casts in crc32.c to avoid warnings [Oberhumer]
51: - Add contrib/masmx64 [Vollant]
52: - Update contrib/asm586, asm686, masmx86, testzlib, vstudio [Vollant]
53:
54: Changes in 1.2.2.2 (30 December 2004)
55: - Replace structure assignments in deflate.c and inflate.c with zmemcpy to
56: avoid implicit memcpy calls (portability for no-library compilation)
57: - Increase sprintf() buffer size in gzdopen() to allow for large numbers
58: - Add INFLATE_STRICT to check distances against zlib header
59: - Improve WinCE errno handling and comments [Chang]
60: - Remove comment about no gzip header processing in FAQ
61: - Add Z_FIXED strategy option to deflateInit2() to force fixed trees
62: - Add updated make_vms.com [Coghlan], update README
63: - Create a new "examples" directory, move gzappend.c there, add zpipe.c,
64: fitblk.c, gzlog.[ch], gzjoin.c, and zlib_how.html.
65: - Add FAQ entry and comments in deflate.c on uninitialized memory access
66: - Add Solaris 9 make options in configure [Gilbert]
67: - Allow strerror() usage in gzio.c for STDC
68: - Fix DecompressBuf in contrib/delphi/ZLib.pas [ManChesTer]
69: - Update contrib/masmx86/inffas32.asm and gvmat32.asm [Vollant]
70: - Use z_off_t for adler32_combine() and crc32_combine() lengths
71: - Make adler32() much faster for small len
72: - Use OS_CODE in deflate() default gzip header
73:
74: Changes in 1.2.2.1 (31 October 2004)
75: - Allow inflateSetDictionary() call for raw inflate
76: - Fix inflate header crc check bug for file names and comments
77: - Add deflateSetHeader() and gz_header structure for custom gzip headers
78: - Add inflateGetheader() to retrieve gzip headers
79: - Add crc32_combine() and adler32_combine() functions
80: - Add alloc_func, free_func, in_func, out_func to Z_PREFIX list
81: - Use zstreamp consistently in zlib.h (inflate_back functions)
82: - Remove GUNZIP condition from definition of inflate_mode in inflate.h
83: and in contrib/inflate86/inffast.S [Truta, Anderson]
84: - Add support for AMD64 in contrib/inflate86/inffas86.c [Anderson]
85: - Update projects/README.projects and projects/visualc6 [Truta]
86: - Update win32/DLL_FAQ.txt [Truta]
87: - Avoid warning under NO_GZCOMPRESS in gzio.c; fix typo [Truta]
88: - Deprecate Z_ASCII; use Z_TEXT instead [Truta]
89: - Use a new algorithm for setting strm->data_type in trees.c [Truta]
90: - Do not define an exit() prototype in zutil.c unless DEBUG defined
91: - Remove prototype of exit() from zutil.c, example.c, minigzip.c [Truta]
92: - Add comment in zlib.h for Z_NO_FLUSH parameter to deflate()
93: - Fix Darwin build version identification [Peterson]
94:
95: Changes in 1.2.2 (3 October 2004)
96: - Update zlib.h comments on gzip in-memory processing
97: - Set adler to 1 in inflateReset() to support Java test suite [Walles]
98: - Add contrib/dotzlib [Ravn]
99: - Update win32/DLL_FAQ.txt [Truta]
100: - Update contrib/minizip [Vollant]
101: - Move contrib/visual-basic.txt to old/ [Truta]
102: - Fix assembler builds in projects/visualc6/ [Truta]
103:
104: Changes in 1.2.1.2 (9 September 2004)
105: - Update INDEX file
106: - Fix trees.c to update strm->data_type (no one ever noticed!)
107: - Fix bug in error case in inflate.c, infback.c, and infback9.c [Brown]
108: - Add "volatile" to crc table flag declaration (for DYNAMIC_CRC_TABLE)
109: - Add limited multitasking protection to DYNAMIC_CRC_TABLE
110: - Add NO_vsnprintf for VMS in zutil.h [Mozilla]
111: - Don't declare strerror() under VMS [Mozilla]
112: - Add comment to DYNAMIC_CRC_TABLE to use get_crc_table() to initialize
113: - Update contrib/ada [Anisimkov]
114: - Update contrib/minizip [Vollant]
115: - Fix configure to not hardcode directories for Darwin [Peterson]
116: - Fix gzio.c to not return error on empty files [Brown]
117: - Fix indentation; update version in contrib/delphi/ZLib.pas and
118: contrib/pascal/zlibpas.pas [Truta]
119: - Update mkasm.bat in contrib/masmx86 [Truta]
120: - Update contrib/untgz [Truta]
121: - Add projects/README.projects [Truta]
122: - Add project for MS Visual C++ 6.0 in projects/visualc6 [Cadieux, Truta]
123: - Update win32/DLL_FAQ.txt [Truta]
124: - Update list of Z_PREFIX symbols in zconf.h [Randers-Pehrson, Truta]
125: - Remove an unnecessary assignment to curr in inftrees.c [Truta]
126: - Add OS/2 to exe builds in configure [Poltorak]
127: - Remove err dummy parameter in zlib.h [Kientzle]
128:
129: Changes in 1.2.1.1 (9 January 2004)
130: - Update email address in README
131: - Several FAQ updates
132: - Fix a big fat bug in inftrees.c that prevented decoding valid
133: dynamic blocks with only literals and no distance codes --
134: Thanks to "Hot Emu" for the bug report and sample file
135: - Add a note to puff.c on no distance codes case.
136:
137: Changes in 1.2.1 (17 November 2003)
138: - Remove a tab in contrib/gzappend/gzappend.c
139: - Update some interfaces in contrib for new zlib functions
140: - Update zlib version number in some contrib entries
141: - Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta]
142: - Support shared libraries on Hurd and KFreeBSD [Brown]
143: - Fix error in NO_DIVIDE option of adler32.c
144:
145: Changes in 1.2.0.8 (4 November 2003)
146: - Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas
147: - Add experimental NO_DIVIDE #define in adler32.c
148: - Possibly faster on some processors (let me know if it is)
149: - Correct Z_BLOCK to not return on first inflate call if no wrap
150: - Fix strm->data_type on inflate() return to correctly indicate EOB
151: - Add deflatePrime() function for appending in the middle of a byte
152: - Add contrib/gzappend for an example of appending to a stream
153: - Update win32/DLL_FAQ.txt [Truta]
154: - Delete Turbo C comment in README [Truta]
155: - Improve some indentation in zconf.h [Truta]
156: - Fix infinite loop on bad input in configure script [Church]
157: - Fix gzeof() for concatenated gzip files [Johnson]
158: - Add example to contrib/visual-basic.txt [Michael B.]
159: - Add -p to mkdir's in Makefile.in [vda]
160: - Fix configure to properly detect presence or lack of printf functions
161: - Add AS400 support [Monnerat]
162: - Add a little Cygwin support [Wilson]
163:
164: Changes in 1.2.0.7 (21 September 2003)
165: - Correct some debug formats in contrib/infback9
166: - Cast a type in a debug statement in trees.c
167: - Change search and replace delimiter in configure from % to # [Beebe]
168: - Update contrib/untgz to 0.2 with various fixes [Truta]
169: - Add build support for Amiga [Nikl]
170: - Remove some directories in old that have been updated to 1.2
171: - Add dylib building for Mac OS X in configure and Makefile.in
172: - Remove old distribution stuff from Makefile
173: - Update README to point to DLL_FAQ.txt, and add comment on Mac OS X
174: - Update links in README
175:
176: Changes in 1.2.0.6 (13 September 2003)
177: - Minor FAQ updates
178: - Update contrib/minizip to 1.00 [Vollant]
179: - Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta]
180: - Update POSTINC comment for 68060 [Nikl]
181: - Add contrib/infback9 with deflate64 decoding (unsupported)
182: - For MVS define NO_vsnprintf and undefine FAR [van Burik]
183: - Add pragma for fdopen on MVS [van Burik]
184:
185: Changes in 1.2.0.5 (8 September 2003)
186: - Add OF to inflateBackEnd() declaration in zlib.h
187: - Remember start when using gzdopen in the middle of a file
188: - Use internal off_t counters in gz* functions to properly handle seeks
189: - Perform more rigorous check for distance-too-far in inffast.c
190: - Add Z_BLOCK flush option to return from inflate at block boundary
191: - Set strm->data_type on return from inflate
192: - Indicate bits unused, if at block boundary, and if in last block
193: - Replace size_t with ptrdiff_t in crc32.c, and check for correct size
194: - Add condition so old NO_DEFLATE define still works for compatibility
195: - FAQ update regarding the Windows DLL [Truta]
196: - INDEX update: add qnx entry, remove aix entry [Truta]
197: - Install zlib.3 into mandir [Wilson]
198: - Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta]
199: - Adapt the zlib interface to the new DLL convention guidelines [Truta]
200: - Introduce ZLIB_WINAPI macro to allow the export of functions using
201: the WINAPI calling convention, for Visual Basic [Vollant, Truta]
202: - Update msdos and win32 scripts and makefiles [Truta]
203: - Export symbols by name, not by ordinal, in win32/zlib.def [Truta]
204: - Add contrib/ada [Anisimkov]
205: - Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta]
206: - Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant]
207: - Add contrib/masm686 [Truta]
208: - Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm
209: [Truta, Vollant]
210: - Update contrib/delphi; rename to contrib/pascal; add example [Truta]
211: - Remove contrib/delphi2; add a new contrib/delphi [Truta]
212: - Avoid inclusion of the nonstandard <memory.h> in contrib/iostream,
213: and fix some method prototypes [Truta]
214: - Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip
215: [Truta]
216: - Avoid the use of backslash (\) in contrib/minizip [Vollant]
217: - Fix file time handling in contrib/untgz; update makefiles [Truta]
218: - Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines
219: [Vollant]
220: - Remove contrib/vstudio/vc15_16 [Vollant]
221: - Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta]
222: - Update README.contrib [Truta]
223: - Invert the assignment order of match_head and s->prev[...] in
224: INSERT_STRING [Truta]
225: - Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings
226: [Truta]
227: - Compare function pointers with 0, not with NULL or Z_NULL [Truta]
228: - Fix prototype of syncsearch in inflate.c [Truta]
229: - Introduce ASMINF macro to be enabled when using an ASM implementation
230: of inflate_fast [Truta]
231: - Change NO_DEFLATE to NO_GZCOMPRESS [Truta]
232: - Modify test_gzio in example.c to take a single file name as a
233: parameter [Truta]
234: - Exit the example.c program if gzopen fails [Truta]
235: - Add type casts around strlen in example.c [Truta]
236: - Remove casting to sizeof in minigzip.c; give a proper type
237: to the variable compared with SUFFIX_LEN [Truta]
238: - Update definitions of STDC and STDC99 in zconf.h [Truta]
239: - Synchronize zconf.h with the new Windows DLL interface [Truta]
240: - Use SYS16BIT instead of __32BIT__ to distinguish between
241: 16- and 32-bit platforms [Truta]
242: - Use far memory allocators in small 16-bit memory models for
243: Turbo C [Truta]
244: - Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in
245: zlibCompileFlags [Truta]
246: - Cygwin has vsnprintf [Wilson]
247: - In Windows16, OS_CODE is 0, as in MSDOS [Truta]
248: - In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson]
249:
250: Changes in 1.2.0.4 (10 August 2003)
251: - Minor FAQ updates
252: - Be more strict when checking inflateInit2's windowBits parameter
253: - Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well
254: - Add gzip wrapper option to deflateInit2 using windowBits
255: - Add updated QNX rule in configure and qnx directory [Bonnefoy]
256: - Make inflate distance-too-far checks more rigorous
257: - Clean up FAR usage in inflate
258: - Add casting to sizeof() in gzio.c and minigzip.c
259:
260: Changes in 1.2.0.3 (19 July 2003)
261: - Fix silly error in gzungetc() implementation [Vollant]
262: - Update contrib/minizip and contrib/vstudio [Vollant]
263: - Fix printf format in example.c
264: - Correct cdecl support in zconf.in.h [Anisimkov]
265: - Minor FAQ updates
266:
267: Changes in 1.2.0.2 (13 July 2003)
268: - Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons
269: - Attempt to avoid warnings in crc32.c for pointer-int conversion
270: - Add AIX to configure, remove aix directory [Bakker]
271: - Add some casts to minigzip.c
272: - Improve checking after insecure sprintf() or vsprintf() calls
273: - Remove #elif's from crc32.c
274: - Change leave label to inf_leave in inflate.c and infback.c to avoid
275: library conflicts
276: - Remove inflate gzip decoding by default--only enable gzip decoding by
277: special request for stricter backward compatibility
278: - Add zlibCompileFlags() function to return compilation information
279: - More typecasting in deflate.c to avoid warnings
280: - Remove leading underscore from _Capital #defines [Truta]
281: - Fix configure to link shared library when testing
282: - Add some Windows CE target adjustments [Mai]
283: - Remove #define ZLIB_DLL in zconf.h [Vollant]
284: - Add zlib.3 [Rodgers]
285: - Update RFC URL in deflate.c and algorithm.txt [Mai]
286: - Add zlib_dll_FAQ.txt to contrib [Truta]
287: - Add UL to some constants [Truta]
288: - Update minizip and vstudio [Vollant]
289: - Remove vestigial NEED_DUMMY_RETURN from zconf.in.h
290: - Expand use of NO_DUMMY_DECL to avoid all dummy structures
291: - Added iostream3 to contrib [Schwardt]
292: - Replace rewind() with fseek() for WinCE [Truta]
293: - Improve setting of zlib format compression level flags
294: - Report 0 for huffman and rle strategies and for level == 0 or 1
295: - Report 2 only for level == 6
296: - Only deal with 64K limit when necessary at compile time [Truta]
297: - Allow TOO_FAR check to be turned off at compile time [Truta]
298: - Add gzclearerr() function [Souza]
299: - Add gzungetc() function
300:
301: Changes in 1.2.0.1 (17 March 2003)
302: - Add Z_RLE strategy for run-length encoding [Truta]
303: - When Z_RLE requested, restrict matches to distance one
304: - Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE
305: - Correct FASTEST compilation to allow level == 0
306: - Clean up what gets compiled for FASTEST
307: - Incorporate changes to zconf.in.h [Vollant]
308: - Refine detection of Turbo C need for dummy returns
309: - Refine ZLIB_DLL compilation
310: - Include additional header file on VMS for off_t typedef
311: - Try to use _vsnprintf where it supplants vsprintf [Vollant]
312: - Add some casts in inffast.c
313: - Enchance comments in zlib.h on what happens if gzprintf() tries to
314: write more than 4095 bytes before compression
315: - Remove unused state from inflateBackEnd()
316: - Remove exit(0) from minigzip.c, example.c
317: - Get rid of all those darn tabs
318: - Add "check" target to Makefile.in that does the same thing as "test"
319: - Add "mostlyclean" and "maintainer-clean" targets to Makefile.in
320: - Update contrib/inflate86 [Anderson]
321: - Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant]
322: - Add msdos and win32 directories with makefiles [Truta]
323: - More additions and improvements to the FAQ
324:
325: Changes in 1.2.0 (9 March 2003)
326: - New and improved inflate code
327: - About 20% faster
328: - Does not allocate 32K window unless and until needed
329: - Automatically detects and decompresses gzip streams
330: - Raw inflate no longer needs an extra dummy byte at end
331: - Added inflateBack functions using a callback interface--even faster
332: than inflate, useful for file utilities (gzip, zip)
333: - Added inflateCopy() function to record state for random access on
334: externally generated deflate streams (e.g. in gzip files)
335: - More readable code (I hope)
336: - New and improved crc32()
337: - About 50% faster, thanks to suggestions from Rodney Brown
338: - Add deflateBound() and compressBound() functions
339: - Fix memory leak in deflateInit2()
340: - Permit setting dictionary for raw deflate (for parallel deflate)
341: - Fix const declaration for gzwrite()
342: - Check for some malloc() failures in gzio.c
343: - Fix bug in gzopen() on single-byte file 0x1f
344: - Fix bug in gzread() on concatenated file with 0x1f at end of buffer
345: and next buffer doesn't start with 0x8b
346: - Fix uncompress() to return Z_DATA_ERROR on truncated input
347: - Free memory at end of example.c
348: - Remove MAX #define in trees.c (conflicted with some libraries)
349: - Fix static const's in deflate.c, gzio.c, and zutil.[ch]
350: - Declare malloc() and free() in gzio.c if STDC not defined
351: - Use malloc() instead of calloc() in zutil.c if int big enough
352: - Define STDC for AIX
353: - Add aix/ with approach for compiling shared library on AIX
354: - Add HP-UX support for shared libraries in configure
355: - Add OpenUNIX support for shared libraries in configure
356: - Use $cc instead of gcc to build shared library
357: - Make prefix directory if needed when installing
358: - Correct Macintosh avoidance of typedef Byte in zconf.h
359: - Correct Turbo C memory allocation when under Linux
360: - Use libz.a instead of -lz in Makefile (assure use of compiled library)
361: - Update configure to check for snprintf or vsnprintf functions and their
362: return value, warn during make if using an insecure function
363: - Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that
364: is lost when library is used--resolution is to build new zconf.h
365: - Documentation improvements (in zlib.h):
366: - Document raw deflate and inflate
367: - Update RFCs URL
368: - Point out that zlib and gzip formats are different
369: - Note that Z_BUF_ERROR is not fatal
370: - Document string limit for gzprintf() and possible buffer overflow
371: - Note requirement on avail_out when flushing
372: - Note permitted values of flush parameter of inflate()
373: - Add some FAQs (and even answers) to the FAQ
374: - Add contrib/inflate86/ for x86 faster inflate
375: - Add contrib/blast/ for PKWare Data Compression Library decompression
376: - Add contrib/puff/ simple inflate for deflate format description
377:
378: Changes in 1.1.4 (11 March 2002)
379: - ZFREE was repeated on same allocation on some error conditions.
380: This creates a security problem described in
381: http://www.zlib.org/advisory-2002-03-11.txt
382: - Returned incorrect error (Z_MEM_ERROR) on some invalid data
383: - Avoid accesses before window for invalid distances with inflate window
384: less than 32K.
385: - force windowBits > 8 to avoid a bug in the encoder for a window size
386: of 256 bytes. (A complete fix will be available in 1.1.5).
387:
388: Changes in 1.1.3 (9 July 1998)
389: - fix "an inflate input buffer bug that shows up on rare but persistent
390: occasions" (Mark)
391: - fix gzread and gztell for concatenated .gz files (Didier Le Botlan)
392: - fix gzseek(..., SEEK_SET) in write mode
393: - fix crc check after a gzeek (Frank Faubert)
394: - fix miniunzip when the last entry in a zip file is itself a zip file
395: (J Lillge)
396: - add contrib/asm586 and contrib/asm686 (Brian Raiter)
397: See http://www.muppetlabs.com/~breadbox/software/assembly.html
398: - add support for Delphi 3 in contrib/delphi (Bob Dellaca)
399: - add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)
400: - do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)
401: - use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)
402: - added a FAQ file
403:
404: - Support gzdopen on Mac with Metrowerks (Jason Linhart)
405: - Do not redefine Byte on Mac (Brad Pettit & Jason Linhart)
406: - define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young)
407: - avoid some warnings with Borland C (Tom Tanner)
408: - fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant)
409: - emulate utime() for WIN32 in contrib/untgz (Gilles Vollant)
410: - allow several arguments to configure (Tim Mooney, Frodo Looijaard)
411: - use libdir and includedir in Makefile.in (Tim Mooney)
412: - support shared libraries on OSF1 V4 (Tim Mooney)
413: - remove so_locations in "make clean" (Tim Mooney)
414: - fix maketree.c compilation error (Glenn, Mark)
415: - Python interface to zlib now in Python 1.5 (Jeremy Hylton)
416: - new Makefile.riscos (Rich Walker)
417: - initialize static descriptors in trees.c for embedded targets (Nick Smith)
418: - use "foo-gz" in example.c for RISCOS and VMS (Nick Smith)
419: - add the OS/2 files in Makefile.in too (Andrew Zabolotny)
420: - fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane)
421: - fix maketree.c to allow clean compilation of inffixed.h (Mark)
422: - fix parameter check in deflateCopy (Gunther Nikl)
423: - cleanup trees.c, use compressed_len only in debug mode (Christian Spieler)
424: - Many portability patches by Christian Spieler:
425: . zutil.c, zutil.h: added "const" for zmem*
426: . Make_vms.com: fixed some typos
427: . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists
428: . msdos/Makefile.msc: remove "default rtl link library" info from obj files
429: . msdos/Makefile.*: use model-dependent name for the built zlib library
430: . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc:
431: new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT)
432: - use define instead of typedef for Bytef also for MSC small/medium (Tom Lane)
433: - replace __far with _far for better portability (Christian Spieler, Tom Lane)
434: - fix test for errno.h in configure (Tim Newsham)
435:
436: Changes in 1.1.2 (19 March 98)
437: - added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant)
438: See http://www.winimage.com/zLibDll/unzip.html
439: - preinitialize the inflate tables for fixed codes, to make the code
440: completely thread safe (Mark)
441: - some simplifications and slight speed-up to the inflate code (Mark)
442: - fix gzeof on non-compressed files (Allan Schrum)
443: - add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs)
444: - use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn)
445: - added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny)
446: - add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori)
447: - do not wrap extern "C" around system includes (Tom Lane)
448: - mention zlib binding for TCL in README (Andreas Kupries)
449: - added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert)
450: - allow "make install prefix=..." even after configure (Glenn Randers-Pehrson)
451: - allow "configure --prefix $HOME" (Tim Mooney)
452: - remove warnings in example.c and gzio.c (Glenn Randers-Pehrson)
453: - move Makefile.sas to amiga/Makefile.sas
454:
455: Changes in 1.1.1 (27 Feb 98)
456: - fix macros _tr_tally_* in deflate.h for debug mode (Glenn Randers-Pehrson)
457: - remove block truncation heuristic which had very marginal effect for zlib
458: (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the
459: compression ratio on some files. This also allows inlining _tr_tally for
460: matches in deflate_slow.
461: - added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier)
462:
463: Changes in 1.1.0 (24 Feb 98)
464: - do not return STREAM_END prematurely in inflate (John Bowler)
465: - revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler)
466: - compile with -DFASTEST to get compression code optimized for speed only
467: - in minigzip, try mmap'ing the input file first (Miguel Albrecht)
468: - increase size of I/O buffers in minigzip.c and gzio.c (not a big gain
469: on Sun but significant on HP)
470:
471: - add a pointer to experimental unzip library in README (Gilles Vollant)
472: - initialize variable gcc in configure (Chris Herborth)
473:
474: Changes in 1.0.9 (17 Feb 1998)
475: - added gzputs and gzgets functions
476: - do not clear eof flag in gzseek (Mark Diekhans)
477: - fix gzseek for files in transparent mode (Mark Diekhans)
478: - do not assume that vsprintf returns the number of bytes written (Jens Krinke)
479: - replace EXPORT with ZEXPORT to avoid conflict with other programs
480: - added compress2 in zconf.h, zlib.def, zlib.dnt
481: - new asm code from Gilles Vollant in contrib/asm386
482: - simplify the inflate code (Mark):
483: . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new()
484: . ZALLOC the length list in inflate_trees_fixed() instead of using stack
485: . ZALLOC the value area for huft_build() instead of using stack
486: . Simplify Z_FINISH check in inflate()
487:
488: - Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8
489: - in inftrees.c, avoid cc -O bug on HP (Farshid Elahi)
490: - in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with
491: the declaration of FAR (Gilles VOllant)
492: - install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann)
493: - read_buf buf parameter of type Bytef* instead of charf*
494: - zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout)
495: - do not redeclare unlink in minigzip.c for WIN32 (John Bowler)
496: - fix check for presence of directories in "make install" (Ian Willis)
497:
498: Changes in 1.0.8 (27 Jan 1998)
499: - fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant)
500: - fix gzgetc and gzputc for big endian systems (Markus Oberhumer)
501: - added compress2() to allow setting the compression level
502: - include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong)
503: - use constant arrays for the static trees in trees.c instead of computing
504: them at run time (thanks to Ken Raeburn for this suggestion). To create
505: trees.h, compile with GEN_TREES_H and run "make test".
506: - check return code of example in "make test" and display result
507: - pass minigzip command line options to file_compress
508: - simplifying code of inflateSync to avoid gcc 2.8 bug
509:
510: - support CC="gcc -Wall" in configure -s (QingLong)
511: - avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn)
512: - fix test for shared library support to avoid compiler warnings
513: - zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant)
514: - check for TARGET_OS_MAC in addition to MACOS (Brad Pettit)
515: - do not use fdopen for Metrowerks on Mac (Brad Pettit))
516: - add checks for gzputc and gzputc in example.c
517: - avoid warnings in gzio.c and deflate.c (Andreas Kleinert)
518: - use const for the CRC table (Ken Raeburn)
519: - fixed "make uninstall" for shared libraries
520: - use Tracev instead of Trace in infblock.c
521: - in example.c use correct compressed length for test_sync
522: - suppress +vnocompatwarnings in configure for HPUX (not always supported)
523:
524: Changes in 1.0.7 (20 Jan 1998)
525: - fix gzseek which was broken in write mode
526: - return error for gzseek to negative absolute position
527: - fix configure for Linux (Chun-Chung Chen)
528: - increase stack space for MSC (Tim Wegner)
529: - get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant)
530: - define EXPORTVA for gzprintf (Gilles Vollant)
531: - added man page zlib.3 (Rick Rodgers)
532: - for contrib/untgz, fix makedir() and improve Makefile
533:
534: - check gzseek in write mode in example.c
535: - allocate extra buffer for seeks only if gzseek is actually called
536: - avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant)
537: - add inflateSyncPoint in zconf.h
538: - fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def
539:
540: Changes in 1.0.6 (19 Jan 1998)
541: - add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and
542: gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code)
543: - Fix a deflate bug occurring only with compression level 0 (thanks to
544: Andy Buckler for finding this one).
545: - In minigzip, pass transparently also the first byte for .Z files.
546: - return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress()
547: - check Z_FINISH in inflate (thanks to Marc Schluper)
548: - Implement deflateCopy (thanks to Adam Costello)
549: - make static libraries by default in configure, add --shared option.
550: - move MSDOS or Windows specific files to directory msdos
551: - suppress the notion of partial flush to simplify the interface
552: (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4)
553: - suppress history buffer provided by application to simplify the interface
554: (this feature was not implemented anyway in 1.0.4)
555: - next_in and avail_in must be initialized before calling inflateInit or
556: inflateInit2
557: - add EXPORT in all exported functions (for Windows DLL)
558: - added Makefile.nt (thanks to Stephen Williams)
559: - added the unsupported "contrib" directory:
560: contrib/asm386/ by Gilles Vollant <info@winimage.com>
561: 386 asm code replacing longest_match().
562: contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
563: A C++ I/O streams interface to the zlib gz* functions
564: contrib/iostream2/ by Tyge Løvset <Tyge.Lovset@cmr.no>
565: Another C++ I/O streams interface
566: contrib/untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es>
567: A very simple tar.gz file extractor using zlib
568: contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl>
569: How to use compress(), uncompress() and the gz* functions from VB.
570: - pass params -f (filtered data), -h (huffman only), -1 to -9 (compression
571: level) in minigzip (thanks to Tom Lane)
572:
573: - use const for rommable constants in deflate
574: - added test for gzseek and gztell in example.c
575: - add undocumented function inflateSyncPoint() (hack for Paul Mackerras)
576: - add undocumented function zError to convert error code to string
577: (for Tim Smithers)
578: - Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code.
579: - Use default memcpy for Symantec MSDOS compiler.
580: - Add EXPORT keyword for check_func (needed for Windows DLL)
581: - add current directory to LD_LIBRARY_PATH for "make test"
582: - create also a link for libz.so.1
583: - added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura)
584: - use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX)
585: - added -soname for Linux in configure (Chun-Chung Chen,
586: - assign numbers to the exported functions in zlib.def (for Windows DLL)
587: - add advice in zlib.h for best usage of deflateSetDictionary
588: - work around compiler bug on Atari (cast Z_NULL in call of s->checkfn)
589: - allow compilation with ANSI keywords only enabled for TurboC in large model
590: - avoid "versionString"[0] (Borland bug)
591: - add NEED_DUMMY_RETURN for Borland
592: - use variable z_verbose for tracing in debug mode (L. Peter Deutsch).
593: - allow compilation with CC
594: - defined STDC for OS/2 (David Charlap)
595: - limit external names to 8 chars for MVS (Thomas Lund)
596: - in minigzip.c, use static buffers only for 16-bit systems
597: - fix suffix check for "minigzip -d foo.gz"
598: - do not return an error for the 2nd of two consecutive gzflush() (Felix Lee)
599: - use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau)
600: - added makelcc.bat for lcc-win32 (Tom St Denis)
601: - in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe)
602: - Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion.
603: - check for unistd.h in configure (for off_t)
604: - remove useless check parameter in inflate_blocks_free
605: - avoid useless assignment of s->check to itself in inflate_blocks_new
606: - do not flush twice in gzclose (thanks to Ken Raeburn)
607: - rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h
608: - use NO_ERRNO_H instead of enumeration of operating systems with errno.h
609: - work around buggy fclose on pipes for HP/UX
610: - support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson)
611: - fix configure if CC is already equal to gcc
612:
613: Changes in 1.0.5 (3 Jan 98)
614: - Fix inflate to terminate gracefully when fed corrupted or invalid data
615: - Use const for rommable constants in inflate
616: - Eliminate memory leaks on error conditions in inflate
617: - Removed some vestigial code in inflate
618: - Update web address in README
619:
620: Changes in 1.0.4 (24 Jul 96)
621: - In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF
622: bit, so the decompressor could decompress all the correct data but went
623: on to attempt decompressing extra garbage data. This affected minigzip too.
624: - zlibVersion and gzerror return const char* (needed for DLL)
625: - port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno)
626: - use z_error only for DEBUG (avoid problem with DLLs)
627:
628: Changes in 1.0.3 (2 Jul 96)
629: - use z_streamp instead of z_stream *, which is now a far pointer in MSDOS
630: small and medium models; this makes the library incompatible with previous
631: versions for these models. (No effect in large model or on other systems.)
632: - return OK instead of BUF_ERROR if previous deflate call returned with
633: avail_out as zero but there is nothing to do
634: - added memcmp for non STDC compilers
635: - define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly)
636: - define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO)
637: - better check for 16-bit mode MSC (avoids problem with Symantec)
638:
639: Changes in 1.0.2 (23 May 96)
640: - added Windows DLL support
641: - added a function zlibVersion (for the DLL support)
642: - fixed declarations using Bytef in infutil.c (pb with MSDOS medium model)
643: - Bytef is define's instead of typedef'd only for Borland C
644: - avoid reading uninitialized memory in example.c
645: - mention in README that the zlib format is now RFC1950
646: - updated Makefile.dj2
647: - added algorithm.doc
648:
649: Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion]
650: - fix array overlay in deflate.c which sometimes caused bad compressed data
651: - fix inflate bug with empty stored block
652: - fix MSDOS medium model which was broken in 0.99
653: - fix deflateParams() which could generated bad compressed data.
654: - Bytef is define'd instead of typedef'ed (work around Borland bug)
655: - added an INDEX file
656: - new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32),
657: Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas)
658: - speed up adler32 for modern machines without auto-increment
659: - added -ansi for IRIX in configure
660: - static_init_done in trees.c is an int
661: - define unlink as delete for VMS
662: - fix configure for QNX
663: - add configure branch for SCO and HPUX
664: - avoid many warnings (unused variables, dead assignments, etc...)
665: - no fdopen for BeOS
666: - fix the Watcom fix for 32 bit mode (define FAR as empty)
667: - removed redefinition of Byte for MKWERKS
668: - work around an MWKERKS bug (incorrect merge of all .h files)
669:
670: Changes in 0.99 (27 Jan 96)
671: - allow preset dictionary shared between compressor and decompressor
672: - allow compression level 0 (no compression)
673: - add deflateParams in zlib.h: allow dynamic change of compression level
674: and compression strategy.
675: - test large buffers and deflateParams in example.c
676: - add optional "configure" to build zlib as a shared library
677: - suppress Makefile.qnx, use configure instead
678: - fixed deflate for 64-bit systems (detected on Cray)
679: - fixed inflate_blocks for 64-bit systems (detected on Alpha)
680: - declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2)
681: - always return Z_BUF_ERROR when deflate() has nothing to do
682: - deflateInit and inflateInit are now macros to allow version checking
683: - prefix all global functions and types with z_ with -DZ_PREFIX
684: - make falloc completely reentrant (inftrees.c)
685: - fixed very unlikely race condition in ct_static_init
686: - free in reverse order of allocation to help memory manager
687: - use zlib-1.0/* instead of zlib/* inside the tar.gz
688: - make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith
689: -Wconversion -Wstrict-prototypes -Wmissing-prototypes"
690: - allow gzread on concatenated .gz files
691: - deflateEnd now returns Z_DATA_ERROR if it was premature
692: - deflate is finally (?) fully deterministic (no matches beyond end of input)
693: - Document Z_SYNC_FLUSH
694: - add uninstall in Makefile
695: - Check for __cpluplus in zlib.h
696: - Better test in ct_align for partial flush
697: - avoid harmless warnings for Borland C++
698: - initialize hash_head in deflate.c
699: - avoid warning on fdopen (gzio.c) for HP cc -Aa
700: - include stdlib.h for STDC compilers
701: - include errno.h for Cray
702: - ignore error if ranlib doesn't exist
703: - call ranlib twice for NeXTSTEP
704: - use exec_prefix instead of prefix for libz.a
705: - renamed ct_* as _tr_* to avoid conflict with applications
706: - clear z->msg in inflateInit2 before any error return
707: - initialize opaque in example.c, gzio.c, deflate.c and inflate.c
708: - fixed typo in zconf.h (_GNUC__ => __GNUC__)
709: - check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode)
710: - fix typo in Make_vms.com (f$trnlnm -> f$getsyi)
711: - in fcalloc, normalize pointer if size > 65520 bytes
712: - don't use special fcalloc for 32 bit Borland C++
713: - use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc...
714: - use Z_BINARY instead of BINARY
715: - document that gzclose after gzdopen will close the file
716: - allow "a" as mode in gzopen.
717: - fix error checking in gzread
718: - allow skipping .gz extra-field on pipes
719: - added reference to Perl interface in README
720: - put the crc table in FAR data (I dislike more and more the medium model :)
721: - added get_crc_table
722: - added a dimension to all arrays (Borland C can't count).
723: - workaround Borland C bug in declaration of inflate_codes_new & inflate_fast
724: - guard against multiple inclusion of *.h (for precompiled header on Mac)
725: - Watcom C pretends to be Microsoft C small model even in 32 bit mode.
726: - don't use unsized arrays to avoid silly warnings by Visual C++:
727: warning C4746: 'inflate_mask' : unsized array treated as '__far'
728: (what's wrong with far data in far model?).
729: - define enum out of inflate_blocks_state to allow compilation with C++
730:
731: Changes in 0.95 (16 Aug 95)
732: - fix MSDOS small and medium model (now easier to adapt to any compiler)
733: - inlined send_bits
734: - fix the final (:-) bug for deflate with flush (output was correct but
735: not completely flushed in rare occasions).
736: - default window size is same for compression and decompression
737: (it's now sufficient to set MAX_WBITS in zconf.h).
738: - voidp -> voidpf and voidnp -> voidp (for consistency with other
739: typedefs and because voidnp was not near in large model).
740:
741: Changes in 0.94 (13 Aug 95)
742: - support MSDOS medium model
743: - fix deflate with flush (could sometimes generate bad output)
744: - fix deflateReset (zlib header was incorrectly suppressed)
745: - added support for VMS
746: - allow a compression level in gzopen()
747: - gzflush now calls fflush
748: - For deflate with flush, flush even if no more input is provided.
749: - rename libgz.a as libz.a
750: - avoid complex expression in infcodes.c triggering Turbo C bug
751: - work around a problem with gcc on Alpha (in INSERT_STRING)
752: - don't use inline functions (problem with some gcc versions)
753: - allow renaming of Byte, uInt, etc... with #define.
754: - avoid warning about (unused) pointer before start of array in deflate.c
755: - avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c
756: - avoid reserved word 'new' in trees.c
757:
758: Changes in 0.93 (25 June 95)
759: - temporarily disable inline functions
760: - make deflate deterministic
761: - give enough lookahead for PARTIAL_FLUSH
762: - Set binary mode for stdin/stdout in minigzip.c for OS/2
763: - don't even use signed char in inflate (not portable enough)
764: - fix inflate memory leak for segmented architectures
765:
766: Changes in 0.92 (3 May 95)
767: - don't assume that char is signed (problem on SGI)
768: - Clear bit buffer when starting a stored block
769: - no memcpy on Pyramid
770: - suppressed inftest.c
771: - optimized fill_window, put longest_match inline for gcc
772: - optimized inflate on stored blocks.
773: - untabify all sources to simplify patches
774:
775: Changes in 0.91 (2 May 95)
776: - Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h
777: - Document the memory requirements in zconf.h
778: - added "make install"
779: - fix sync search logic in inflateSync
780: - deflate(Z_FULL_FLUSH) now works even if output buffer too short
781: - after inflateSync, don't scare people with just "lo world"
782: - added support for DJGPP
783:
784: Changes in 0.9 (1 May 95)
785: - don't assume that zalloc clears the allocated memory (the TurboC bug
786: was Mark's bug after all :)
787: - let again gzread copy uncompressed data unchanged (was working in 0.71)
788: - deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented
789: - added a test of inflateSync in example.c
790: - moved MAX_WBITS to zconf.h because users might want to change that.
791: - document explicitly that zalloc(64K) on MSDOS must return a normalized
792: pointer (zero offset)
793: - added Makefiles for Microsoft C, Turbo C, Borland C++
794: - faster crc32()
795:
796: Changes in 0.8 (29 April 95)
797: - added fast inflate (inffast.c)
798: - deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this
799: is incompatible with previous versions of zlib which returned Z_OK.
800: - work around a TurboC compiler bug (bad code for b << 0, see infutil.h)
801: (actually that was not a compiler bug, see 0.81 above)
802: - gzread no longer reads one extra byte in certain cases
803: - In gzio destroy(), don't reference a freed structure
804: - avoid many warnings for MSDOS
805: - avoid the ERROR symbol which is used by MS Windows
806:
807: Changes in 0.71 (14 April 95)
808: - Fixed more MSDOS compilation problems :( There is still a bug with
809: TurboC large model.
810:
811: Changes in 0.7 (14 April 95)
812: - Added full inflate support.
813: - Simplified the crc32() interface. The pre- and post-conditioning
814: (one's complement) is now done inside crc32(). WARNING: this is
815: incompatible with previous versions; see zlib.h for the new usage.
816:
817: Changes in 0.61 (12 April 95)
818: - workaround for a bug in TurboC. example and minigzip now work on MSDOS.
819:
820: Changes in 0.6 (11 April 95)
821: - added minigzip.c
822: - added gzdopen to reopen a file descriptor as gzFile
823: - added transparent reading of non-gziped files in gzread.
824: - fixed bug in gzread (don't read crc as data)
825: - fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose).
826: - don't allocate big arrays in the stack (for MSDOS)
827: - fix some MSDOS compilation problems
828:
829: Changes in 0.5:
830: - do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but
831: not yet Z_FULL_FLUSH.
832: - support decompression but only in a single step (forced Z_FINISH)
833: - added opaque object for zalloc and zfree.
834: - added deflateReset and inflateReset
835: - added a variable zlib_version for consistency checking.
836: - renamed the 'filter' parameter of deflateInit2 as 'strategy'.
837: Added Z_FILTERED and Z_HUFFMAN_ONLY constants.
838:
839: Changes in 0.4:
840: - avoid "zip" everywhere, use zlib instead of ziplib.
841: - suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush
842: if compression method == 8.
843: - added adler32 and crc32
844: - renamed deflateOptions as deflateInit2, call one or the other but not both
845: - added the method parameter for deflateInit2.
846: - added inflateInit2
847: - simplied considerably deflateInit and inflateInit by not supporting
848: user-provided history buffer. This is supported only in deflateInit2
849: and inflateInit2.
850:
851: Changes in 0.3:
852: - prefix all macro names with Z_
853: - use Z_FINISH instead of deflateEnd to finish compression.
854: - added Z_HUFFMAN_ONLY
855: - added gzerror()
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