6 * Added info about removing Compress::Zlib version 1, before
11 * rewrote memGzip using IO::Compress::Gzip::gzip
15 * Added explicit version checking
17 2.002 29 December 2006
19 * Documentation updates.
21 * Fix append mode with gzopen.
24 * Allow gzopen to read from and write to a scalar reference.
30 2.000_14 26 October 2006
38 2.000_12 16 April 2006
40 * Fixed gzread to zap the output buffer to an empty string when zero
41 bytes are requested. This matches the behaviour of C::Z 1.x
43 2.000_11 10 April 2006
47 2.000_10 13 March 2006
49 * Changed gzread so that its behaviour matches C::Z::gzread 1.x if it
50 is called after eof. In this case it will write an empty string
51 into the output parameter. This change is solely for backward
52 compatability reasons.
60 * Breakout zlib specific code into separate modules.
62 * Limited support for reading/writing zip files
64 2.000_06 5 October 2005
66 * Added eof parameter to Compress::Zlib::inflate method.
68 * Fixed issue with 64-bit
70 2.000_05 4 October 2005
72 * Renamed IO::* to IO::Compress::* & IO::Uncompress::*
74 2.000_04 23 September 2005
76 * Fixed some more non-portable test that were failing on VMS.
78 * fixed problem where error messages in the oneshot interface were
81 2.000_03 12 September 2005
83 * Fixed some non-portable test that were failing on VMS.
85 * Fixed export of zlib constants from the IO::* classes
87 2.000_02 6 September 2005
89 * Split Append mode into Append and Merge
91 * Fixed typos in the documentation.
95 * Added libscan to Makefile.PL
97 * Added InputLength for IO::Gunzip et al
99 2.000_01 22 August 2005
101 * Fixed VERSION in Compress::Gzip::Constants
103 * Removed Compress::Gzip::Info from the distribution.
105 2.000_00 21 August 2005
107 * First Beta relase of Compress::zlib rewrite.
109 1.38 - 6 September 2005
111 * Integrate core change 25304 -- Symbian Update
113 * Added libscan to Makefile.PL
115 1.37 - 12 August 2005
117 * Change to t/03examples.t for VMS from Abe Timmerman
121 * Renamed zlib-src-1.2.3 to zlib-src to help VMS
123 * Fixed Makefile.PL for VMS
125 * Fixed t/03examples.t for VMS
127 * Added a couple of notes about incompatibility with Unix compress.
131 * Updated zlib source to 1.2.3
133 * Fixed problem with where two calls to gzclose would hang the debugger.
134 See https://rt.cpan.org/Ticket/Display.html?id=13789
136 * Added code from Alexey Tourbin to use XSLoader when available,
137 and DynaLoader otherwise.
139 * Documented that the compress & uncompress functions were not
140 the same as the Unix utilities of the same name.
142 * Fixed 05gzsetp -- it left a temp file hanging around.
144 * Integrate core change 24787 - SvUPGRADE returns void in blead
146 * Integrate core change 24788 - Makefile.PL adjustments for the core
149 1.34 - 30 January 2005
151 * Fixed typo in the README
153 * Fixed examples.t on Win32 where paths have embedded whitespace.
155 * Fix for Cygwin and core integration from Jos I. Boumans
157 * Upgrade zlib source to 1.2.2
159 1.33 - 14 January 2004
161 * Reworked Makefile.PL to avoid creating a private copy of zlib.
162 This both simplifies the build, plus it makes life easier for VMS.
164 * Patches for Makefile.PL to get it to work on VMS supplied by
167 * memGunzip has very slow on FreeBSD. Turns out to be down to
168 the way realloc works on FreeBSD. Changed both inflate & deflate
169 to use exponentially increasing buffer sizes when they need to
170 realloc. Thanks to Peter Jeremy for the lowdown on FreeBSD
173 1.32 - 26 November 2003
175 * Steve Hay reported a problem on rt.cpan.org with Windows and
176 MSCV++ 6.0 where the source from the zlib directory was getting
177 installed with the rest of the module.
178 https://rt.cpan.org/Ticket/Display.html?id=1741
180 This has been fixed by renaming the "zlib" directory to "zlib-src"
181 thus avoiding a conflict with the name of this Perl module.
183 * Fixed a bug in the inflate method where the input buffer is an
184 lvalue (via substr). Problem & solution reported by Salvador Fandiqo.
186 * Tightened up the logic in Makefile.PL when BUILD_ZLIB is
187 True. Issue spotted by Ralf S. Engelschall.
189 1.31 - 29 October 2003
191 * Reinstated the creation of .bak files - $^I seems to need a
192 backup file on Windows. For OpenVMS, the extenstion _bak is used.
194 1.30 - 28 October 2003
196 * Bundled a sub-set of the zlib source with the module and changed
197 the default make behaviour to build with the included zlib source.
198 The previous behaviour of using a pre-built zlib library is
199 still available for those that want it.
201 * Added prototypes to the subs in Zlib.pm that didn't already have
202 them. Patch from Ed Avis.
204 * No .bak files are created by Makefile.PL any more - this keep
205 distclean much happier. Patch suggested by Ed Avis.
206 This also fixes a similar problem reported by Dr. Martin Zinser
209 * Documentation for some of the gz functions updated.
211 * Format strings modified in DispStream to keep OpenVMS happy.
212 Problem reported by Dr. Martin Zinser.
217 * Makefile.PL now displays a warning about not installing
218 Compress::Zlib via the CPAN shell.
220 * Fix to allow intermingling of gzread & gzreadline - patch
221 supplied by Doug Perham.
223 * memGunzip will silently now work if the gzip trailer is
224 missing. Some HTTP Origin Servers seem to leave it out.
228 * Tests 148 & 150 from t/02zlib.t were failing on redhat 9.
230 * Added a few words about the problems with Mac OS X to the README file.
234 * Fixed bug in gzopen where $gzerrno wasn't being set correctly.
235 The symptom was $gzerrno was set to Z_MEM_ERROR although the file
236 was opened ok. If gzopen failed, $gzerrno was being set correctly.
237 This problem wasn't spotted before because the typical test
238 to determine whether gzopen passed or failed was to check its
241 1.19 - 31 October 2002
243 * fixed a problem with t/02zlib.t that was failing with redhat 8.
245 1.18 - 24 October 2002
247 * fixed a Win32 problem in t/02zlib.t by changing sysread to read.
249 * zlib 1.0.5 & older doesn't have gzsetparams & gzeof. Added a new
250 variable to config.in to flag an old version of zlib. Split
251 out the tests for gzsetparams into t/05gzsetp.t
255 * Moved the test to check the versions of libz & zlib.h into a separate
256 file and added troubleshooting notes to README.
258 * In gzopen, only attempt to call "tell" for normal files.
260 * Fixed to work in taint mode.
262 * Broke changes out of README into Changes file.
264 * Replaced internal use of Z_PARTIAL_FLUSH symbol with Z_SYNC_FLUSH.
265 zlib.h says /* will be removed, use Z_SYNC_FLUSH instead */
267 1.16 - 13 December 2001
269 * Fixed bug in Makefile.PL that stopped "perl Makefile.PL PREFIX=..."
272 1.15 - 4th December 2001
274 * Changes a few types to get the module to build on 64-bit Solaris
276 * Changed the up/downgrade logic to default to the older constructs, and
277 to only call a downgrade if specifically requested. Some older versions
278 of Perl were having problems with the in-place edit.
280 * added the new XS constant code.
282 1.14 - 27th August 2001
284 * Memory overwrite bug fixed in "inflate". Kudos to Rob Simons for
285 reporting the bug and to Anton Berezin for fixing it for me.
287 1.13 - 31st June 2001
289 * Make sure config.in is consistant when released.
291 1.12 - 28th April 2001
293 * Modified Makefile.PL to only enable the warnings pragma if
294 using perl 5.6.1 or better.
296 1.11 - 17th February 2001
298 * Added logic in Makefile.PL to toggle between using $^W and
299 the warnings pragma in the module.
301 * The module, the examples & the test harness are now all strict
304 1.10 - 5th February 2001
306 * fixed a bug in memGunzip. Used Z_ERR instead of Z_DATA_ERROR.
308 1.09 - 15th January 2001
310 * Silenced a few compiler warnings.
312 * Updated zlib home site in README & Zlib.pm to www.info-zip.org
314 * Minor typo in Zlib.pm - a link used AUTHORS instead of AUTHOR
315 -- spotted by Frank Martini.
317 * Mention Archive::Zip
319 * added memGunzip. This is largely based on code provided by Jim Leonard.
321 * $deflate->flush can now take an optional parameter. Valid
322 values are Z_NO_FLUSH, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, Z_FULL_FLUSH
323 and Z_FINISH. The default is Z_FINISH.
327 * uncompress was clobbering its input parameter. Now it doesn't.
328 This bug was spotted by Deven T. Corzine.
330 * If a variable that only ever contained a number was given
331 to compress or deflate, it would not be compressed properly. Now
332 it will be coerced to a string and then compressed. This bug
333 was spotted by Deven T. Corzine.
337 * ANSI-ified the static functions in Zlib.xs
339 * Added the ability to build zlib along with the module.
340 This feature is 90% based on a Makefile provided by Gurusamy
345 * Fixed a nasty problem where inflate could truncate the data
346 returned. Thanks to Douglas Thomson <dougt@mugc.cc.monash.edu.au>
347 for both spotting the problem and fixing the bug.
349 * Added a note about the undocumented features in zlib that are
350 required when accessing zip files.
352 * gzclose will now get called automatically when the gzip object is
357 * Previous release used newSVpvn, which doesn't exist in 5.004_04
358 or earlier. Changed to use newSVpv instead.
360 * The module needs Perl 5.004 or better, so updated the version
361 checking in Zlib.pm and Makefile.PL
365 * Bug 19990527.001: compress(undef) core dumps -- Fixed.
369 * Updated to use the new PL_ symbols.
370 Means the module can be built with Perl 5.005_5*
374 * The return codes for gzread, gzreadline and gzwrite were
375 documented incorrectly as returning a status code.
377 * The test harness was missing a "gzclose". This caused problem
378 showed up on an amiga. Thanks to Erik van Roode for reporting
381 * Patched zlib.t for OS/2. Thanks to Ilya Zakharevich for the patch.
385 * A number of fixes to the test suite and the example scripts to
386 allow them to work under win32. All courtesy of Gurusamy
391 * Fixed crc32 & adler32. They were very broken.
393 * The following functions can now take a scalar reference in
394 place of a scalar for their buffer parameters:
403 This should mean applications that make use of the module don't
404 have to copy large buffers around.
407 * Normally the inflate method consumes I<all> of the input buffer
408 before returning. The exception to this is when inflate detects
409 the end of the stream (Z_STREAM_END). In this case the input
410 buffer need not be completely consumed. To allow processing of
411 file formats that embed a deflation stream (e.g. zip, gzip),
412 the inflate method now sets the buffer parameter to be what
413 remains after inflation.
415 When the return status is Z_STREAM_END, it will be what remains
416 of the buffer (if any) after deflation. When the status is Z_OK
417 it will be an empty string.
419 This change means that the buffer parameter must be a lvalue.
421 * Fixed crc32 and adler32. They were both very broken.
423 * Added the Compress::Zlib::memGzip function.
425 0.5 - Confirmed that no changes were necessary for zlib 1.0.3, or 1.0.4.
427 The optional parameters for deflateInit and inflateInit can now
428 be specified as an associative array in addition to a reference
429 to an associative array. They can also accept the -Name
432 gzopen can now optionally take a reference to an open
433 filehandle in place of a filename. In this case it will call
436 Added gzstream example script.
438 0.4 - Upgrade to support zlib 0.99
440 Added dictionary interface.
442 Fixed bug in gzreadline - previously it would keep returning
443 the same buffer. This bug was reported by Helmut Jarausch
445 Removed dependency to zutil.h and so dropped support for
447 DEF_MEM_LEVEL (use MAX_MEM_LEVEL instead)
448 DEF_WBITS (use MAX_WBITS instead)
450 0.3 - Added prototype specification.
452 0.2 - Fixed a minor allocation problem in Zlib.xs
454 0.1 - first alpha release. 2nd October 1995