10 * Fixed gzread to zap the output buffer to an empty string when zero
11 bytes are requested. This matches the behaviour of C::Z 1.x
13 2.000_11 10 April 2006
17 2.000_10 13 March 2006
19 * Changed gzread so that its behaviour matches C::Z::gzread 1.x if it
20 is called after eof. In this case it will write an empty string
21 into the output parameter. This change is solely for backward
22 compatability reasons.
30 * Breakout zlib specific code into separate modules.
32 * Limited support for reading/writing zip files
34 2.000_06 5 October 2005
36 * Added eof parameter to Compress::Zlib::inflate method.
38 * Fixed issue with 64-bit
40 2.000_05 4 October 2005
42 * Renamed IO::* to IO::Compress::* & IO::Uncompress::*
44 2.000_04 23 September 2005
46 * Fixed some more non-portable test that were failing on VMS.
48 * fixed problem where error messages in the oneshot interface were
51 2.000_03 12 September 2005
53 * Fixed some non-portable test that were failing on VMS.
55 * Fixed export of zlib constants from the IO::* classes
57 2.000_02 6 September 2005
59 * Split Append mode into Append and Merge
61 * Fixed typos in the documentation.
65 * Added libscan to Makefile.PL
67 * Added InputLength for IO::Gunzip et al
69 2.000_01 22 August 2005
71 * Fixed VERSION in Compress::Gzip::Constants
73 * Removed Compress::Gzip::Info from the distribution.
75 2.000_00 21 August 2005
77 * First Beta relase of Compress::zlib rewrite.
79 1.38 - 6 September 2005
81 * Integrate core change 25304 -- Symbian Update
83 * Added libscan to Makefile.PL
87 * Change to t/03examples.t for VMS from Abe Timmerman
91 * Renamed zlib-src-1.2.3 to zlib-src to help VMS
93 * Fixed Makefile.PL for VMS
95 * Fixed t/03examples.t for VMS
97 * Added a couple of notes about incompatibility with Unix compress.
101 * Updated zlib source to 1.2.3
103 * Fixed problem with where two calls to gzclose would hang the debugger.
104 See https://rt.cpan.org/Ticket/Display.html?id=13789
106 * Added code from Alexey Tourbin to use XSLoader when available,
107 and DynaLoader otherwise.
109 * Documented that the compress & uncompress functions were not
110 the same as the Unix utilities of the same name.
112 * Fixed 05gzsetp -- it left a temp file hanging around.
114 * Integrate core change 24787 - SvUPGRADE returns void in blead
116 * Integrate core change 24788 - Makefile.PL adjustments for the core
119 1.34 - 30 January 2005
121 * Fixed typo in the README
123 * Fixed examples.t on Win32 where paths have embedded whitespace.
125 * Fix for Cygwin and core integration from Jos I. Boumans
127 * Upgrade zlib source to 1.2.2
129 1.33 - 14 January 2004
131 * Reworked Makefile.PL to avoid creating a private copy of zlib.
132 This both simplifies the build, plus it makes life easier for VMS.
134 * Patches for Makefile.PL to get it to work on VMS supplied by
137 * memGunzip has very slow on FreeBSD. Turns out to be down to
138 the way realloc works on FreeBSD. Changed both inflate & deflate
139 to use exponentially increasing buffer sizes when they need to
140 realloc. Thanks to Peter Jeremy for the lowdown on FreeBSD
143 1.32 - 26 November 2003
145 * Steve Hay reported a problem on rt.cpan.org with Windows and
146 MSCV++ 6.0 where the source from the zlib directory was getting
147 installed with the rest of the module.
148 https://rt.cpan.org/Ticket/Display.html?id=1741
150 This has been fixed by renaming the "zlib" directory to "zlib-src"
151 thus avoiding a conflict with the name of this Perl module.
153 * Fixed a bug in the inflate method where the input buffer is an
154 lvalue (via substr). Problem & solution reported by Salvador Fandiqo.
156 * Tightened up the logic in Makefile.PL when BUILD_ZLIB is
157 True. Issue spotted by Ralf S. Engelschall.
159 1.31 - 29 October 2003
161 * Reinstated the creation of .bak files - $^I seems to need a
162 backup file on Windows. For OpenVMS, the extenstion _bak is used.
164 1.30 - 28 October 2003
166 * Bundled a sub-set of the zlib source with the module and changed
167 the default make behaviour to build with the included zlib source.
168 The previous behaviour of using a pre-built zlib library is
169 still available for those that want it.
171 * Added prototypes to the subs in Zlib.pm that didn't already have
172 them. Patch from Ed Avis.
174 * No .bak files are created by Makefile.PL any more - this keep
175 distclean much happier. Patch suggested by Ed Avis.
176 This also fixes a similar problem reported by Dr. Martin Zinser
179 * Documentation for some of the gz functions updated.
181 * Format strings modified in DispStream to keep OpenVMS happy.
182 Problem reported by Dr. Martin Zinser.
187 * Makefile.PL now displays a warning about not installing
188 Compress::Zlib via the CPAN shell.
190 * Fix to allow intermingling of gzread & gzreadline - patch
191 supplied by Doug Perham.
193 * memGunzip will silently now work if the gzip trailer is
194 missing. Some HTTP Origin Servers seem to leave it out.
198 * Tests 148 & 150 from t/02zlib.t were failing on redhat 9.
200 * Added a few words about the problems with Mac OS X to the README file.
204 * Fixed bug in gzopen where $gzerrno wasn't being set correctly.
205 The symptom was $gzerrno was set to Z_MEM_ERROR although the file
206 was opened ok. If gzopen failed, $gzerrno was being set correctly.
207 This problem wasn't spotted before because the typical test
208 to determine whether gzopen passed or failed was to check its
211 1.19 - 31 October 2002
213 * fixed a problem with t/02zlib.t that was failing with redhat 8.
215 1.18 - 24 October 2002
217 * fixed a Win32 problem in t/02zlib.t by changing sysread to read.
219 * zlib 1.0.5 & older doesn't have gzsetparams & gzeof. Added a new
220 variable to config.in to flag an old version of zlib. Split
221 out the tests for gzsetparams into t/05gzsetp.t
225 * Moved the test to check the versions of libz & zlib.h into a separate
226 file and added troubleshooting notes to README.
228 * In gzopen, only attempt to call "tell" for normal files.
230 * Fixed to work in taint mode.
232 * Broke changes out of README into Changes file.
234 * Replaced internal use of Z_PARTIAL_FLUSH symbol with Z_SYNC_FLUSH.
235 zlib.h says /* will be removed, use Z_SYNC_FLUSH instead */
237 1.16 - 13 December 2001
239 * Fixed bug in Makefile.PL that stopped "perl Makefile.PL PREFIX=..."
242 1.15 - 4th December 2001
244 * Changes a few types to get the module to build on 64-bit Solaris
246 * Changed the up/downgrade logic to default to the older constructs, and
247 to only call a downgrade if specifically requested. Some older versions
248 of Perl were having problems with the in-place edit.
250 * added the new XS constant code.
252 1.14 - 27th August 2001
254 * Memory overwrite bug fixed in "inflate". Kudos to Rob Simons for
255 reporting the bug and to Anton Berezin for fixing it for me.
257 1.13 - 31st June 2001
259 * Make sure config.in is consistant when released.
261 1.12 - 28th April 2001
263 * Modified Makefile.PL to only enable the warnings pragma if
264 using perl 5.6.1 or better.
266 1.11 - 17th February 2001
268 * Added logic in Makefile.PL to toggle between using $^W and
269 the warnings pragma in the module.
271 * The module, the examples & the test harness are now all strict
274 1.10 - 5th February 2001
276 * fixed a bug in memGunzip. Used Z_ERR instead of Z_DATA_ERROR.
278 1.09 - 15th January 2001
280 * Silenced a few compiler warnings.
282 * Updated zlib home site in README & Zlib.pm to www.info-zip.org
284 * Minor typo in Zlib.pm - a link used AUTHORS instead of AUTHOR
285 -- spotted by Frank Martini.
287 * Mention Archive::Zip
289 * added memGunzip. This is largely based on code provided by Jim Leonard.
291 * $deflate->flush can now take an optional parameter. Valid
292 values are Z_NO_FLUSH, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, Z_FULL_FLUSH
293 and Z_FINISH. The default is Z_FINISH.
297 * uncompress was clobbering its input parameter. Now it doesn't.
298 This bug was spotted by Deven T. Corzine.
300 * If a variable that only ever contained a number was given
301 to compress or deflate, it would not be compressed properly. Now
302 it will be coerced to a string and then compressed. This bug
303 was spotted by Deven T. Corzine.
307 * ANSI-ified the static functions in Zlib.xs
309 * Added the ability to build zlib along with the module.
310 This feature is 90% based on a Makefile provided by Gurusamy
315 * Fixed a nasty problem where inflate could truncate the data
316 returned. Thanks to Douglas Thomson <dougt@mugc.cc.monash.edu.au>
317 for both spotting the problem and fixing the bug.
319 * Added a note about the undocumented features in zlib that are
320 required when accessing zip files.
322 * gzclose will now get called automatically when the gzip object is
327 * Previous release used newSVpvn, which doesn't exist in 5.004_04
328 or earlier. Changed to use newSVpv instead.
330 * The module needs Perl 5.004 or better, so updated the version
331 checking in Zlib.pm and Makefile.PL
335 * Bug 19990527.001: compress(undef) core dumps -- Fixed.
339 * Updated to use the new PL_ symbols.
340 Means the module can be built with Perl 5.005_5*
344 * The return codes for gzread, gzreadline and gzwrite were
345 documented incorrectly as returning a status code.
347 * The test harness was missing a "gzclose". This caused problem
348 showed up on an amiga. Thanks to Erik van Roode for reporting
351 * Patched zlib.t for OS/2. Thanks to Ilya Zakharevich for the patch.
355 * A number of fixes to the test suite and the example scripts to
356 allow them to work under win32. All courtesy of Gurusamy
361 * Fixed crc32 & adler32. They were very broken.
363 * The following functions can now take a scalar reference in
364 place of a scalar for their buffer parameters:
373 This should mean applications that make use of the module don't
374 have to copy large buffers around.
377 * Normally the inflate method consumes I<all> of the input buffer
378 before returning. The exception to this is when inflate detects
379 the end of the stream (Z_STREAM_END). In this case the input
380 buffer need not be completely consumed. To allow processing of
381 file formats that embed a deflation stream (e.g. zip, gzip),
382 the inflate method now sets the buffer parameter to be what
383 remains after inflation.
385 When the return status is Z_STREAM_END, it will be what remains
386 of the buffer (if any) after deflation. When the status is Z_OK
387 it will be an empty string.
389 This change means that the buffer parameter must be a lvalue.
391 * Fixed crc32 and adler32. They were both very broken.
393 * Added the Compress::Zlib::memGzip function.
395 0.5 - Confirmed that no changes were necessary for zlib 1.0.3, or 1.0.4.
397 The optional parameters for deflateInit and inflateInit can now
398 be specified as an associative array in addition to a reference
399 to an associative array. They can also accept the -Name
402 gzopen can now optionally take a reference to an open
403 filehandle in place of a filename. In this case it will call
406 Added gzstream example script.
408 0.4 - Upgrade to support zlib 0.99
410 Added dictionary interface.
412 Fixed bug in gzreadline - previously it would keep returning
413 the same buffer. This bug was reported by Helmut Jarausch
415 Removed dependency to zutil.h and so dropped support for
417 DEF_MEM_LEVEL (use MAX_MEM_LEVEL instead)
418 DEF_WBITS (use MAX_WBITS instead)
420 0.3 - Added prototype specification.
422 0.2 - Fixed a minor allocation problem in Zlib.xs
424 0.1 - first alpha release. 2nd October 1995