4 2.006 1 September 20007
7 Added INSTALLDIRS directive to install as a core module when built
11 Fixed crc32 and adler32 tests in to remove ascii assumption.
13 * lib/Compress/Zlib.pm
14 Make gzreadline not support $/, just like in Compress::Zlib 1.x
15 Folk who want $/ with readline support can get it in
16 IO::Uncompress::Gunzip.
17 [rt.cpan.org #28663] and Debian bug #435656 http://bugs.debian.org/435656
20 * Added info about removing Compress::Zlib version 1, before
25 * rewrote memGzip using IO::Compress::Gzip::gzip
29 * Added explicit version checking
31 2.002 29 December 2006
33 * Documentation updates.
35 * Fix append mode with gzopen.
38 * Allow gzopen to read from and write to a scalar reference.
44 2.000_14 26 October 2006
52 2.000_12 16 April 2006
54 * Fixed gzread to zap the output buffer to an empty string when zero
55 bytes are requested. This matches the behaviour of C::Z 1.x
57 2.000_11 10 April 2006
61 2.000_10 13 March 2006
63 * Changed gzread so that its behaviour matches C::Z::gzread 1.x if it
64 is called after eof. In this case it will write an empty string
65 into the output parameter. This change is solely for backward
66 compatability reasons.
74 * Breakout zlib specific code into separate modules.
76 * Limited support for reading/writing zip files
78 2.000_06 5 October 2005
80 * Added eof parameter to Compress::Zlib::inflate method.
82 * Fixed issue with 64-bit
84 2.000_05 4 October 2005
86 * Renamed IO::* to IO::Compress::* & IO::Uncompress::*
88 2.000_04 23 September 2005
90 * Fixed some more non-portable test that were failing on VMS.
92 * fixed problem where error messages in the oneshot interface were
95 2.000_03 12 September 2005
97 * Fixed some non-portable test that were failing on VMS.
99 * Fixed export of zlib constants from the IO::* classes
101 2.000_02 6 September 2005
103 * Split Append mode into Append and Merge
105 * Fixed typos in the documentation.
109 * Added libscan to Makefile.PL
111 * Added InputLength for IO::Gunzip et al
113 2.000_01 22 August 2005
115 * Fixed VERSION in Compress::Gzip::Constants
117 * Removed Compress::Gzip::Info from the distribution.
119 2.000_00 21 August 2005
121 * First Beta relase of Compress::zlib rewrite.
123 1.38 - 6 September 2005
125 * Integrate core change 25304 -- Symbian Update
127 * Added libscan to Makefile.PL
129 1.37 - 12 August 2005
131 * Change to t/03examples.t for VMS from Abe Timmerman
135 * Renamed zlib-src-1.2.3 to zlib-src to help VMS
137 * Fixed Makefile.PL for VMS
139 * Fixed t/03examples.t for VMS
141 * Added a couple of notes about incompatibility with Unix compress.
145 * Updated zlib source to 1.2.3
147 * Fixed problem with where two calls to gzclose would hang the debugger.
148 See https://rt.cpan.org/Ticket/Display.html?id=13789
150 * Added code from Alexey Tourbin to use XSLoader when available,
151 and DynaLoader otherwise.
153 * Documented that the compress & uncompress functions were not
154 the same as the Unix utilities of the same name.
156 * Fixed 05gzsetp -- it left a temp file hanging around.
158 * Integrate core change 24787 - SvUPGRADE returns void in blead
160 * Integrate core change 24788 - Makefile.PL adjustments for the core
163 1.34 - 30 January 2005
165 * Fixed typo in the README
167 * Fixed examples.t on Win32 where paths have embedded whitespace.
169 * Fix for Cygwin and core integration from Jos I. Boumans
171 * Upgrade zlib source to 1.2.2
173 1.33 - 14 January 2004
175 * Reworked Makefile.PL to avoid creating a private copy of zlib.
176 This both simplifies the build, plus it makes life easier for VMS.
178 * Patches for Makefile.PL to get it to work on VMS supplied by
181 * memGunzip has very slow on FreeBSD. Turns out to be down to
182 the way realloc works on FreeBSD. Changed both inflate & deflate
183 to use exponentially increasing buffer sizes when they need to
184 realloc. Thanks to Peter Jeremy for the lowdown on FreeBSD
187 1.32 - 26 November 2003
189 * Steve Hay reported a problem on rt.cpan.org with Windows and
190 MSCV++ 6.0 where the source from the zlib directory was getting
191 installed with the rest of the module.
192 https://rt.cpan.org/Ticket/Display.html?id=1741
194 This has been fixed by renaming the "zlib" directory to "zlib-src"
195 thus avoiding a conflict with the name of this Perl module.
197 * Fixed a bug in the inflate method where the input buffer is an
198 lvalue (via substr). Problem & solution reported by Salvador Fandiqo.
200 * Tightened up the logic in Makefile.PL when BUILD_ZLIB is
201 True. Issue spotted by Ralf S. Engelschall.
203 1.31 - 29 October 2003
205 * Reinstated the creation of .bak files - $^I seems to need a
206 backup file on Windows. For OpenVMS, the extenstion _bak is used.
208 1.30 - 28 October 2003
210 * Bundled a sub-set of the zlib source with the module and changed
211 the default make behaviour to build with the included zlib source.
212 The previous behaviour of using a pre-built zlib library is
213 still available for those that want it.
215 * Added prototypes to the subs in Zlib.pm that didn't already have
216 them. Patch from Ed Avis.
218 * No .bak files are created by Makefile.PL any more - this keep
219 distclean much happier. Patch suggested by Ed Avis.
220 This also fixes a similar problem reported by Dr. Martin Zinser
223 * Documentation for some of the gz functions updated.
225 * Format strings modified in DispStream to keep OpenVMS happy.
226 Problem reported by Dr. Martin Zinser.
231 * Makefile.PL now displays a warning about not installing
232 Compress::Zlib via the CPAN shell.
234 * Fix to allow intermingling of gzread & gzreadline - patch
235 supplied by Doug Perham.
237 * memGunzip will silently now work if the gzip trailer is
238 missing. Some HTTP Origin Servers seem to leave it out.
242 * Tests 148 & 150 from t/02zlib.t were failing on redhat 9.
244 * Added a few words about the problems with Mac OS X to the README file.
248 * Fixed bug in gzopen where $gzerrno wasn't being set correctly.
249 The symptom was $gzerrno was set to Z_MEM_ERROR although the file
250 was opened ok. If gzopen failed, $gzerrno was being set correctly.
251 This problem wasn't spotted before because the typical test
252 to determine whether gzopen passed or failed was to check its
255 1.19 - 31 October 2002
257 * fixed a problem with t/02zlib.t that was failing with redhat 8.
259 1.18 - 24 October 2002
261 * fixed a Win32 problem in t/02zlib.t by changing sysread to read.
263 * zlib 1.0.5 & older doesn't have gzsetparams & gzeof. Added a new
264 variable to config.in to flag an old version of zlib. Split
265 out the tests for gzsetparams into t/05gzsetp.t
269 * Moved the test to check the versions of libz & zlib.h into a separate
270 file and added troubleshooting notes to README.
272 * In gzopen, only attempt to call "tell" for normal files.
274 * Fixed to work in taint mode.
276 * Broke changes out of README into Changes file.
278 * Replaced internal use of Z_PARTIAL_FLUSH symbol with Z_SYNC_FLUSH.
279 zlib.h says /* will be removed, use Z_SYNC_FLUSH instead */
281 1.16 - 13 December 2001
283 * Fixed bug in Makefile.PL that stopped "perl Makefile.PL PREFIX=..."
286 1.15 - 4th December 2001
288 * Changes a few types to get the module to build on 64-bit Solaris
290 * Changed the up/downgrade logic to default to the older constructs, and
291 to only call a downgrade if specifically requested. Some older versions
292 of Perl were having problems with the in-place edit.
294 * added the new XS constant code.
296 1.14 - 27th August 2001
298 * Memory overwrite bug fixed in "inflate". Kudos to Rob Simons for
299 reporting the bug and to Anton Berezin for fixing it for me.
301 1.13 - 31st June 2001
303 * Make sure config.in is consistant when released.
305 1.12 - 28th April 2001
307 * Modified Makefile.PL to only enable the warnings pragma if
308 using perl 5.6.1 or better.
310 1.11 - 17th February 2001
312 * Added logic in Makefile.PL to toggle between using $^W and
313 the warnings pragma in the module.
315 * The module, the examples & the test harness are now all strict
318 1.10 - 5th February 2001
320 * fixed a bug in memGunzip. Used Z_ERR instead of Z_DATA_ERROR.
322 1.09 - 15th January 2001
324 * Silenced a few compiler warnings.
326 * Updated zlib home site in README & Zlib.pm to www.info-zip.org
328 * Minor typo in Zlib.pm - a link used AUTHORS instead of AUTHOR
329 -- spotted by Frank Martini.
331 * Mention Archive::Zip
333 * added memGunzip. This is largely based on code provided by Jim Leonard.
335 * $deflate->flush can now take an optional parameter. Valid
336 values are Z_NO_FLUSH, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, Z_FULL_FLUSH
337 and Z_FINISH. The default is Z_FINISH.
341 * uncompress was clobbering its input parameter. Now it doesn't.
342 This bug was spotted by Deven T. Corzine.
344 * If a variable that only ever contained a number was given
345 to compress or deflate, it would not be compressed properly. Now
346 it will be coerced to a string and then compressed. This bug
347 was spotted by Deven T. Corzine.
351 * ANSI-ified the static functions in Zlib.xs
353 * Added the ability to build zlib along with the module.
354 This feature is 90% based on a Makefile provided by Gurusamy
359 * Fixed a nasty problem where inflate could truncate the data
360 returned. Thanks to Douglas Thomson <dougt@mugc.cc.monash.edu.au>
361 for both spotting the problem and fixing the bug.
363 * Added a note about the undocumented features in zlib that are
364 required when accessing zip files.
366 * gzclose will now get called automatically when the gzip object is
371 * Previous release used newSVpvn, which doesn't exist in 5.004_04
372 or earlier. Changed to use newSVpv instead.
374 * The module needs Perl 5.004 or better, so updated the version
375 checking in Zlib.pm and Makefile.PL
379 * Bug 19990527.001: compress(undef) core dumps -- Fixed.
383 * Updated to use the new PL_ symbols.
384 Means the module can be built with Perl 5.005_5*
388 * The return codes for gzread, gzreadline and gzwrite were
389 documented incorrectly as returning a status code.
391 * The test harness was missing a "gzclose". This caused problem
392 showed up on an amiga. Thanks to Erik van Roode for reporting
395 * Patched zlib.t for OS/2. Thanks to Ilya Zakharevich for the patch.
399 * A number of fixes to the test suite and the example scripts to
400 allow them to work under win32. All courtesy of Gurusamy
405 * Fixed crc32 & adler32. They were very broken.
407 * The following functions can now take a scalar reference in
408 place of a scalar for their buffer parameters:
417 This should mean applications that make use of the module don't
418 have to copy large buffers around.
421 * Normally the inflate method consumes I<all> of the input buffer
422 before returning. The exception to this is when inflate detects
423 the end of the stream (Z_STREAM_END). In this case the input
424 buffer need not be completely consumed. To allow processing of
425 file formats that embed a deflation stream (e.g. zip, gzip),
426 the inflate method now sets the buffer parameter to be what
427 remains after inflation.
429 When the return status is Z_STREAM_END, it will be what remains
430 of the buffer (if any) after deflation. When the status is Z_OK
431 it will be an empty string.
433 This change means that the buffer parameter must be a lvalue.
435 * Fixed crc32 and adler32. They were both very broken.
437 * Added the Compress::Zlib::memGzip function.
439 0.5 - Confirmed that no changes were necessary for zlib 1.0.3, or 1.0.4.
441 The optional parameters for deflateInit and inflateInit can now
442 be specified as an associative array in addition to a reference
443 to an associative array. They can also accept the -Name
446 gzopen can now optionally take a reference to an open
447 filehandle in place of a filename. In this case it will call
450 Added gzstream example script.
452 0.4 - Upgrade to support zlib 0.99
454 Added dictionary interface.
456 Fixed bug in gzreadline - previously it would keep returning
457 the same buffer. This bug was reported by Helmut Jarausch
459 Removed dependency to zutil.h and so dropped support for
461 DEF_MEM_LEVEL (use MAX_MEM_LEVEL instead)
462 DEF_WBITS (use MAX_WBITS instead)
464 0.3 - Added prototype specification.
466 0.2 - Fixed a minor allocation problem in Zlib.xs
468 0.1 - first alpha release. 2nd October 1995