6 * Documentation updates.
8 * Fix append mode with gzopen.
11 * Allow gzopen to read from and write to a scalar reference.
17 2.000_14 26 October 2006
25 2.000_12 16 April 2006
27 * Fixed gzread to zap the output buffer to an empty string when zero
28 bytes are requested. This matches the behaviour of C::Z 1.x
30 2.000_11 10 April 2006
34 2.000_10 13 March 2006
36 * Changed gzread so that its behaviour matches C::Z::gzread 1.x if it
37 is called after eof. In this case it will write an empty string
38 into the output parameter. This change is solely for backward
39 compatability reasons.
47 * Breakout zlib specific code into separate modules.
49 * Limited support for reading/writing zip files
51 2.000_06 5 October 2005
53 * Added eof parameter to Compress::Zlib::inflate method.
55 * Fixed issue with 64-bit
57 2.000_05 4 October 2005
59 * Renamed IO::* to IO::Compress::* & IO::Uncompress::*
61 2.000_04 23 September 2005
63 * Fixed some more non-portable test that were failing on VMS.
65 * fixed problem where error messages in the oneshot interface were
68 2.000_03 12 September 2005
70 * Fixed some non-portable test that were failing on VMS.
72 * Fixed export of zlib constants from the IO::* classes
74 2.000_02 6 September 2005
76 * Split Append mode into Append and Merge
78 * Fixed typos in the documentation.
82 * Added libscan to Makefile.PL
84 * Added InputLength for IO::Gunzip et al
86 2.000_01 22 August 2005
88 * Fixed VERSION in Compress::Gzip::Constants
90 * Removed Compress::Gzip::Info from the distribution.
92 2.000_00 21 August 2005
94 * First Beta relase of Compress::zlib rewrite.
96 1.38 - 6 September 2005
98 * Integrate core change 25304 -- Symbian Update
100 * Added libscan to Makefile.PL
102 1.37 - 12 August 2005
104 * Change to t/03examples.t for VMS from Abe Timmerman
108 * Renamed zlib-src-1.2.3 to zlib-src to help VMS
110 * Fixed Makefile.PL for VMS
112 * Fixed t/03examples.t for VMS
114 * Added a couple of notes about incompatibility with Unix compress.
118 * Updated zlib source to 1.2.3
120 * Fixed problem with where two calls to gzclose would hang the debugger.
121 See https://rt.cpan.org/Ticket/Display.html?id=13789
123 * Added code from Alexey Tourbin to use XSLoader when available,
124 and DynaLoader otherwise.
126 * Documented that the compress & uncompress functions were not
127 the same as the Unix utilities of the same name.
129 * Fixed 05gzsetp -- it left a temp file hanging around.
131 * Integrate core change 24787 - SvUPGRADE returns void in blead
133 * Integrate core change 24788 - Makefile.PL adjustments for the core
136 1.34 - 30 January 2005
138 * Fixed typo in the README
140 * Fixed examples.t on Win32 where paths have embedded whitespace.
142 * Fix for Cygwin and core integration from Jos I. Boumans
144 * Upgrade zlib source to 1.2.2
146 1.33 - 14 January 2004
148 * Reworked Makefile.PL to avoid creating a private copy of zlib.
149 This both simplifies the build, plus it makes life easier for VMS.
151 * Patches for Makefile.PL to get it to work on VMS supplied by
154 * memGunzip has very slow on FreeBSD. Turns out to be down to
155 the way realloc works on FreeBSD. Changed both inflate & deflate
156 to use exponentially increasing buffer sizes when they need to
157 realloc. Thanks to Peter Jeremy for the lowdown on FreeBSD
160 1.32 - 26 November 2003
162 * Steve Hay reported a problem on rt.cpan.org with Windows and
163 MSCV++ 6.0 where the source from the zlib directory was getting
164 installed with the rest of the module.
165 https://rt.cpan.org/Ticket/Display.html?id=1741
167 This has been fixed by renaming the "zlib" directory to "zlib-src"
168 thus avoiding a conflict with the name of this Perl module.
170 * Fixed a bug in the inflate method where the input buffer is an
171 lvalue (via substr). Problem & solution reported by Salvador Fandiqo.
173 * Tightened up the logic in Makefile.PL when BUILD_ZLIB is
174 True. Issue spotted by Ralf S. Engelschall.
176 1.31 - 29 October 2003
178 * Reinstated the creation of .bak files - $^I seems to need a
179 backup file on Windows. For OpenVMS, the extenstion _bak is used.
181 1.30 - 28 October 2003
183 * Bundled a sub-set of the zlib source with the module and changed
184 the default make behaviour to build with the included zlib source.
185 The previous behaviour of using a pre-built zlib library is
186 still available for those that want it.
188 * Added prototypes to the subs in Zlib.pm that didn't already have
189 them. Patch from Ed Avis.
191 * No .bak files are created by Makefile.PL any more - this keep
192 distclean much happier. Patch suggested by Ed Avis.
193 This also fixes a similar problem reported by Dr. Martin Zinser
196 * Documentation for some of the gz functions updated.
198 * Format strings modified in DispStream to keep OpenVMS happy.
199 Problem reported by Dr. Martin Zinser.
204 * Makefile.PL now displays a warning about not installing
205 Compress::Zlib via the CPAN shell.
207 * Fix to allow intermingling of gzread & gzreadline - patch
208 supplied by Doug Perham.
210 * memGunzip will silently now work if the gzip trailer is
211 missing. Some HTTP Origin Servers seem to leave it out.
215 * Tests 148 & 150 from t/02zlib.t were failing on redhat 9.
217 * Added a few words about the problems with Mac OS X to the README file.
221 * Fixed bug in gzopen where $gzerrno wasn't being set correctly.
222 The symptom was $gzerrno was set to Z_MEM_ERROR although the file
223 was opened ok. If gzopen failed, $gzerrno was being set correctly.
224 This problem wasn't spotted before because the typical test
225 to determine whether gzopen passed or failed was to check its
228 1.19 - 31 October 2002
230 * fixed a problem with t/02zlib.t that was failing with redhat 8.
232 1.18 - 24 October 2002
234 * fixed a Win32 problem in t/02zlib.t by changing sysread to read.
236 * zlib 1.0.5 & older doesn't have gzsetparams & gzeof. Added a new
237 variable to config.in to flag an old version of zlib. Split
238 out the tests for gzsetparams into t/05gzsetp.t
242 * Moved the test to check the versions of libz & zlib.h into a separate
243 file and added troubleshooting notes to README.
245 * In gzopen, only attempt to call "tell" for normal files.
247 * Fixed to work in taint mode.
249 * Broke changes out of README into Changes file.
251 * Replaced internal use of Z_PARTIAL_FLUSH symbol with Z_SYNC_FLUSH.
252 zlib.h says /* will be removed, use Z_SYNC_FLUSH instead */
254 1.16 - 13 December 2001
256 * Fixed bug in Makefile.PL that stopped "perl Makefile.PL PREFIX=..."
259 1.15 - 4th December 2001
261 * Changes a few types to get the module to build on 64-bit Solaris
263 * Changed the up/downgrade logic to default to the older constructs, and
264 to only call a downgrade if specifically requested. Some older versions
265 of Perl were having problems with the in-place edit.
267 * added the new XS constant code.
269 1.14 - 27th August 2001
271 * Memory overwrite bug fixed in "inflate". Kudos to Rob Simons for
272 reporting the bug and to Anton Berezin for fixing it for me.
274 1.13 - 31st June 2001
276 * Make sure config.in is consistant when released.
278 1.12 - 28th April 2001
280 * Modified Makefile.PL to only enable the warnings pragma if
281 using perl 5.6.1 or better.
283 1.11 - 17th February 2001
285 * Added logic in Makefile.PL to toggle between using $^W and
286 the warnings pragma in the module.
288 * The module, the examples & the test harness are now all strict
291 1.10 - 5th February 2001
293 * fixed a bug in memGunzip. Used Z_ERR instead of Z_DATA_ERROR.
295 1.09 - 15th January 2001
297 * Silenced a few compiler warnings.
299 * Updated zlib home site in README & Zlib.pm to www.info-zip.org
301 * Minor typo in Zlib.pm - a link used AUTHORS instead of AUTHOR
302 -- spotted by Frank Martini.
304 * Mention Archive::Zip
306 * added memGunzip. This is largely based on code provided by Jim Leonard.
308 * $deflate->flush can now take an optional parameter. Valid
309 values are Z_NO_FLUSH, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, Z_FULL_FLUSH
310 and Z_FINISH. The default is Z_FINISH.
314 * uncompress was clobbering its input parameter. Now it doesn't.
315 This bug was spotted by Deven T. Corzine.
317 * If a variable that only ever contained a number was given
318 to compress or deflate, it would not be compressed properly. Now
319 it will be coerced to a string and then compressed. This bug
320 was spotted by Deven T. Corzine.
324 * ANSI-ified the static functions in Zlib.xs
326 * Added the ability to build zlib along with the module.
327 This feature is 90% based on a Makefile provided by Gurusamy
332 * Fixed a nasty problem where inflate could truncate the data
333 returned. Thanks to Douglas Thomson <dougt@mugc.cc.monash.edu.au>
334 for both spotting the problem and fixing the bug.
336 * Added a note about the undocumented features in zlib that are
337 required when accessing zip files.
339 * gzclose will now get called automatically when the gzip object is
344 * Previous release used newSVpvn, which doesn't exist in 5.004_04
345 or earlier. Changed to use newSVpv instead.
347 * The module needs Perl 5.004 or better, so updated the version
348 checking in Zlib.pm and Makefile.PL
352 * Bug 19990527.001: compress(undef) core dumps -- Fixed.
356 * Updated to use the new PL_ symbols.
357 Means the module can be built with Perl 5.005_5*
361 * The return codes for gzread, gzreadline and gzwrite were
362 documented incorrectly as returning a status code.
364 * The test harness was missing a "gzclose". This caused problem
365 showed up on an amiga. Thanks to Erik van Roode for reporting
368 * Patched zlib.t for OS/2. Thanks to Ilya Zakharevich for the patch.
372 * A number of fixes to the test suite and the example scripts to
373 allow them to work under win32. All courtesy of Gurusamy
378 * Fixed crc32 & adler32. They were very broken.
380 * The following functions can now take a scalar reference in
381 place of a scalar for their buffer parameters:
390 This should mean applications that make use of the module don't
391 have to copy large buffers around.
394 * Normally the inflate method consumes I<all> of the input buffer
395 before returning. The exception to this is when inflate detects
396 the end of the stream (Z_STREAM_END). In this case the input
397 buffer need not be completely consumed. To allow processing of
398 file formats that embed a deflation stream (e.g. zip, gzip),
399 the inflate method now sets the buffer parameter to be what
400 remains after inflation.
402 When the return status is Z_STREAM_END, it will be what remains
403 of the buffer (if any) after deflation. When the status is Z_OK
404 it will be an empty string.
406 This change means that the buffer parameter must be a lvalue.
408 * Fixed crc32 and adler32. They were both very broken.
410 * Added the Compress::Zlib::memGzip function.
412 0.5 - Confirmed that no changes were necessary for zlib 1.0.3, or 1.0.4.
414 The optional parameters for deflateInit and inflateInit can now
415 be specified as an associative array in addition to a reference
416 to an associative array. They can also accept the -Name
419 gzopen can now optionally take a reference to an open
420 filehandle in place of a filename. In this case it will call
423 Added gzstream example script.
425 0.4 - Upgrade to support zlib 0.99
427 Added dictionary interface.
429 Fixed bug in gzreadline - previously it would keep returning
430 the same buffer. This bug was reported by Helmut Jarausch
432 Removed dependency to zutil.h and so dropped support for
434 DEF_MEM_LEVEL (use MAX_MEM_LEVEL instead)
435 DEF_WBITS (use MAX_WBITS instead)
437 0.3 - Added prototype specification.
439 0.2 - Fixed a minor allocation problem in Zlib.xs
441 0.1 - first alpha release. 2nd October 1995