6 * Minor documentation issue with flush.
11 * Minor documentation changes in README
13 2.007 22 September 20007
15 * lib/Compress/Zlib.pm -- 1.x Backward Compatability issues
16 gzclose - documented return value was wrong, should be 0 for ok.
17 gzflush - return value didn't match 1.x, should return 0 if ok.
18 [rt.cpan.org #29215] and Debian bug #440943 http://bugs.debian.org/440943
20 2.006 1 September 20007
23 Added INSTALLDIRS directive to install as a core module when built
27 Fixed crc32 and adler32 tests in to remove ascii assumption.
29 * lib/Compress/Zlib.pm
30 Make gzreadline not support $/, just like in Compress::Zlib 1.x
31 Folk who want $/ with readline support can get it in
32 IO::Uncompress::Gunzip.
33 [rt.cpan.org #28663] and Debian bug #435656 http://bugs.debian.org/435656
36 * Added info about removing Compress::Zlib version 1, before
41 * rewrote memGzip using IO::Compress::Gzip::gzip
45 * Added explicit version checking
47 2.002 29 December 2006
49 * Documentation updates.
51 * Fix append mode with gzopen.
54 * Allow gzopen to read from and write to a scalar reference.
60 2.000_14 26 October 2006
68 2.000_12 16 April 2006
70 * Fixed gzread to zap the output buffer to an empty string when zero
71 bytes are requested. This matches the behaviour of C::Z 1.x
73 2.000_11 10 April 2006
77 2.000_10 13 March 2006
79 * Changed gzread so that its behaviour matches C::Z::gzread 1.x if it
80 is called after eof. In this case it will write an empty string
81 into the output parameter. This change is solely for backward
82 compatability reasons.
90 * Breakout zlib specific code into separate modules.
92 * Limited support for reading/writing zip files
94 2.000_06 5 October 2005
96 * Added eof parameter to Compress::Zlib::inflate method.
98 * Fixed issue with 64-bit
100 2.000_05 4 October 2005
102 * Renamed IO::* to IO::Compress::* & IO::Uncompress::*
104 2.000_04 23 September 2005
106 * Fixed some more non-portable test that were failing on VMS.
108 * fixed problem where error messages in the oneshot interface were
111 2.000_03 12 September 2005
113 * Fixed some non-portable test that were failing on VMS.
115 * Fixed export of zlib constants from the IO::* classes
117 2.000_02 6 September 2005
119 * Split Append mode into Append and Merge
121 * Fixed typos in the documentation.
125 * Added libscan to Makefile.PL
127 * Added InputLength for IO::Gunzip et al
129 2.000_01 22 August 2005
131 * Fixed VERSION in Compress::Gzip::Constants
133 * Removed Compress::Gzip::Info from the distribution.
135 2.000_00 21 August 2005
137 * First Beta relase of Compress::zlib rewrite.
139 1.38 - 6 September 2005
141 * Integrate core change 25304 -- Symbian Update
143 * Added libscan to Makefile.PL
145 1.37 - 12 August 2005
147 * Change to t/03examples.t for VMS from Abe Timmerman
151 * Renamed zlib-src-1.2.3 to zlib-src to help VMS
153 * Fixed Makefile.PL for VMS
155 * Fixed t/03examples.t for VMS
157 * Added a couple of notes about incompatibility with Unix compress.
161 * Updated zlib source to 1.2.3
163 * Fixed problem with where two calls to gzclose would hang the debugger.
164 See https://rt.cpan.org/Ticket/Display.html?id=13789
166 * Added code from Alexey Tourbin to use XSLoader when available,
167 and DynaLoader otherwise.
169 * Documented that the compress & uncompress functions were not
170 the same as the Unix utilities of the same name.
172 * Fixed 05gzsetp -- it left a temp file hanging around.
174 * Integrate core change 24787 - SvUPGRADE returns void in blead
176 * Integrate core change 24788 - Makefile.PL adjustments for the core
179 1.34 - 30 January 2005
181 * Fixed typo in the README
183 * Fixed examples.t on Win32 where paths have embedded whitespace.
185 * Fix for Cygwin and core integration from Jos I. Boumans
187 * Upgrade zlib source to 1.2.2
189 1.33 - 14 January 2004
191 * Reworked Makefile.PL to avoid creating a private copy of zlib.
192 This both simplifies the build, plus it makes life easier for VMS.
194 * Patches for Makefile.PL to get it to work on VMS supplied by
197 * memGunzip has very slow on FreeBSD. Turns out to be down to
198 the way realloc works on FreeBSD. Changed both inflate & deflate
199 to use exponentially increasing buffer sizes when they need to
200 realloc. Thanks to Peter Jeremy for the lowdown on FreeBSD
203 1.32 - 26 November 2003
205 * Steve Hay reported a problem on rt.cpan.org with Windows and
206 MSCV++ 6.0 where the source from the zlib directory was getting
207 installed with the rest of the module.
208 https://rt.cpan.org/Ticket/Display.html?id=1741
210 This has been fixed by renaming the "zlib" directory to "zlib-src"
211 thus avoiding a conflict with the name of this Perl module.
213 * Fixed a bug in the inflate method where the input buffer is an
214 lvalue (via substr). Problem & solution reported by Salvador Fandiqo.
216 * Tightened up the logic in Makefile.PL when BUILD_ZLIB is
217 True. Issue spotted by Ralf S. Engelschall.
219 1.31 - 29 October 2003
221 * Reinstated the creation of .bak files - $^I seems to need a
222 backup file on Windows. For OpenVMS, the extenstion _bak is used.
224 1.30 - 28 October 2003
226 * Bundled a sub-set of the zlib source with the module and changed
227 the default make behaviour to build with the included zlib source.
228 The previous behaviour of using a pre-built zlib library is
229 still available for those that want it.
231 * Added prototypes to the subs in Zlib.pm that didn't already have
232 them. Patch from Ed Avis.
234 * No .bak files are created by Makefile.PL any more - this keep
235 distclean much happier. Patch suggested by Ed Avis.
236 This also fixes a similar problem reported by Dr. Martin Zinser
239 * Documentation for some of the gz functions updated.
241 * Format strings modified in DispStream to keep OpenVMS happy.
242 Problem reported by Dr. Martin Zinser.
247 * Makefile.PL now displays a warning about not installing
248 Compress::Zlib via the CPAN shell.
250 * Fix to allow intermingling of gzread & gzreadline - patch
251 supplied by Doug Perham.
253 * memGunzip will silently now work if the gzip trailer is
254 missing. Some HTTP Origin Servers seem to leave it out.
258 * Tests 148 & 150 from t/02zlib.t were failing on redhat 9.
260 * Added a few words about the problems with Mac OS X to the README file.
264 * Fixed bug in gzopen where $gzerrno wasn't being set correctly.
265 The symptom was $gzerrno was set to Z_MEM_ERROR although the file
266 was opened ok. If gzopen failed, $gzerrno was being set correctly.
267 This problem wasn't spotted before because the typical test
268 to determine whether gzopen passed or failed was to check its
271 1.19 - 31 October 2002
273 * fixed a problem with t/02zlib.t that was failing with redhat 8.
275 1.18 - 24 October 2002
277 * fixed a Win32 problem in t/02zlib.t by changing sysread to read.
279 * zlib 1.0.5 & older doesn't have gzsetparams & gzeof. Added a new
280 variable to config.in to flag an old version of zlib. Split
281 out the tests for gzsetparams into t/05gzsetp.t
285 * Moved the test to check the versions of libz & zlib.h into a separate
286 file and added troubleshooting notes to README.
288 * In gzopen, only attempt to call "tell" for normal files.
290 * Fixed to work in taint mode.
292 * Broke changes out of README into Changes file.
294 * Replaced internal use of Z_PARTIAL_FLUSH symbol with Z_SYNC_FLUSH.
295 zlib.h says /* will be removed, use Z_SYNC_FLUSH instead */
297 1.16 - 13 December 2001
299 * Fixed bug in Makefile.PL that stopped "perl Makefile.PL PREFIX=..."
302 1.15 - 4th December 2001
304 * Changes a few types to get the module to build on 64-bit Solaris
306 * Changed the up/downgrade logic to default to the older constructs, and
307 to only call a downgrade if specifically requested. Some older versions
308 of Perl were having problems with the in-place edit.
310 * added the new XS constant code.
312 1.14 - 27th August 2001
314 * Memory overwrite bug fixed in "inflate". Kudos to Rob Simons for
315 reporting the bug and to Anton Berezin for fixing it for me.
317 1.13 - 31st June 2001
319 * Make sure config.in is consistant when released.
321 1.12 - 28th April 2001
323 * Modified Makefile.PL to only enable the warnings pragma if
324 using perl 5.6.1 or better.
326 1.11 - 17th February 2001
328 * Added logic in Makefile.PL to toggle between using $^W and
329 the warnings pragma in the module.
331 * The module, the examples & the test harness are now all strict
334 1.10 - 5th February 2001
336 * fixed a bug in memGunzip. Used Z_ERR instead of Z_DATA_ERROR.
338 1.09 - 15th January 2001
340 * Silenced a few compiler warnings.
342 * Updated zlib home site in README & Zlib.pm to www.info-zip.org
344 * Minor typo in Zlib.pm - a link used AUTHORS instead of AUTHOR
345 -- spotted by Frank Martini.
347 * Mention Archive::Zip
349 * added memGunzip. This is largely based on code provided by Jim Leonard.
351 * $deflate->flush can now take an optional parameter. Valid
352 values are Z_NO_FLUSH, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, Z_FULL_FLUSH
353 and Z_FINISH. The default is Z_FINISH.
357 * uncompress was clobbering its input parameter. Now it doesn't.
358 This bug was spotted by Deven T. Corzine.
360 * If a variable that only ever contained a number was given
361 to compress or deflate, it would not be compressed properly. Now
362 it will be coerced to a string and then compressed. This bug
363 was spotted by Deven T. Corzine.
367 * ANSI-ified the static functions in Zlib.xs
369 * Added the ability to build zlib along with the module.
370 This feature is 90% based on a Makefile provided by Gurusamy
375 * Fixed a nasty problem where inflate could truncate the data
376 returned. Thanks to Douglas Thomson <dougt@mugc.cc.monash.edu.au>
377 for both spotting the problem and fixing the bug.
379 * Added a note about the undocumented features in zlib that are
380 required when accessing zip files.
382 * gzclose will now get called automatically when the gzip object is
387 * Previous release used newSVpvn, which doesn't exist in 5.004_04
388 or earlier. Changed to use newSVpv instead.
390 * The module needs Perl 5.004 or better, so updated the version
391 checking in Zlib.pm and Makefile.PL
395 * Bug 19990527.001: compress(undef) core dumps -- Fixed.
399 * Updated to use the new PL_ symbols.
400 Means the module can be built with Perl 5.005_5*
404 * The return codes for gzread, gzreadline and gzwrite were
405 documented incorrectly as returning a status code.
407 * The test harness was missing a "gzclose". This caused problem
408 showed up on an amiga. Thanks to Erik van Roode for reporting
411 * Patched zlib.t for OS/2. Thanks to Ilya Zakharevich for the patch.
415 * A number of fixes to the test suite and the example scripts to
416 allow them to work under win32. All courtesy of Gurusamy
421 * Fixed crc32 & adler32. They were very broken.
423 * The following functions can now take a scalar reference in
424 place of a scalar for their buffer parameters:
433 This should mean applications that make use of the module don't
434 have to copy large buffers around.
437 * Normally the inflate method consumes I<all> of the input buffer
438 before returning. The exception to this is when inflate detects
439 the end of the stream (Z_STREAM_END). In this case the input
440 buffer need not be completely consumed. To allow processing of
441 file formats that embed a deflation stream (e.g. zip, gzip),
442 the inflate method now sets the buffer parameter to be what
443 remains after inflation.
445 When the return status is Z_STREAM_END, it will be what remains
446 of the buffer (if any) after deflation. When the status is Z_OK
447 it will be an empty string.
449 This change means that the buffer parameter must be a lvalue.
451 * Fixed crc32 and adler32. They were both very broken.
453 * Added the Compress::Zlib::memGzip function.
455 0.5 - Confirmed that no changes were necessary for zlib 1.0.3, or 1.0.4.
457 The optional parameters for deflateInit and inflateInit can now
458 be specified as an associative array in addition to a reference
459 to an associative array. They can also accept the -Name
462 gzopen can now optionally take a reference to an open
463 filehandle in place of a filename. In this case it will call
466 Added gzstream example script.
468 0.4 - Upgrade to support zlib 0.99
470 Added dictionary interface.
472 Fixed bug in gzreadline - previously it would keep returning
473 the same buffer. This bug was reported by Helmut Jarausch
475 Removed dependency to zutil.h and so dropped support for
477 DEF_MEM_LEVEL (use MAX_MEM_LEVEL instead)
478 DEF_WBITS (use MAX_WBITS instead)
480 0.3 - Added prototype specification.
482 0.2 - Fixed a minor allocation problem in Zlib.xs
484 0.1 - first alpha release. 2nd October 1995