6 * rewrote memGzip using IO::Compress::Gzip::gzip
10 * Added explicit version checking
12 2.002 29 December 2006
14 * Documentation updates.
16 * Fix append mode with gzopen.
19 * Allow gzopen to read from and write to a scalar reference.
25 2.000_14 26 October 2006
33 2.000_12 16 April 2006
35 * Fixed gzread to zap the output buffer to an empty string when zero
36 bytes are requested. This matches the behaviour of C::Z 1.x
38 2.000_11 10 April 2006
42 2.000_10 13 March 2006
44 * Changed gzread so that its behaviour matches C::Z::gzread 1.x if it
45 is called after eof. In this case it will write an empty string
46 into the output parameter. This change is solely for backward
47 compatability reasons.
55 * Breakout zlib specific code into separate modules.
57 * Limited support for reading/writing zip files
59 2.000_06 5 October 2005
61 * Added eof parameter to Compress::Zlib::inflate method.
63 * Fixed issue with 64-bit
65 2.000_05 4 October 2005
67 * Renamed IO::* to IO::Compress::* & IO::Uncompress::*
69 2.000_04 23 September 2005
71 * Fixed some more non-portable test that were failing on VMS.
73 * fixed problem where error messages in the oneshot interface were
76 2.000_03 12 September 2005
78 * Fixed some non-portable test that were failing on VMS.
80 * Fixed export of zlib constants from the IO::* classes
82 2.000_02 6 September 2005
84 * Split Append mode into Append and Merge
86 * Fixed typos in the documentation.
90 * Added libscan to Makefile.PL
92 * Added InputLength for IO::Gunzip et al
94 2.000_01 22 August 2005
96 * Fixed VERSION in Compress::Gzip::Constants
98 * Removed Compress::Gzip::Info from the distribution.
100 2.000_00 21 August 2005
102 * First Beta relase of Compress::zlib rewrite.
104 1.38 - 6 September 2005
106 * Integrate core change 25304 -- Symbian Update
108 * Added libscan to Makefile.PL
110 1.37 - 12 August 2005
112 * Change to t/03examples.t for VMS from Abe Timmerman
116 * Renamed zlib-src-1.2.3 to zlib-src to help VMS
118 * Fixed Makefile.PL for VMS
120 * Fixed t/03examples.t for VMS
122 * Added a couple of notes about incompatibility with Unix compress.
126 * Updated zlib source to 1.2.3
128 * Fixed problem with where two calls to gzclose would hang the debugger.
129 See https://rt.cpan.org/Ticket/Display.html?id=13789
131 * Added code from Alexey Tourbin to use XSLoader when available,
132 and DynaLoader otherwise.
134 * Documented that the compress & uncompress functions were not
135 the same as the Unix utilities of the same name.
137 * Fixed 05gzsetp -- it left a temp file hanging around.
139 * Integrate core change 24787 - SvUPGRADE returns void in blead
141 * Integrate core change 24788 - Makefile.PL adjustments for the core
144 1.34 - 30 January 2005
146 * Fixed typo in the README
148 * Fixed examples.t on Win32 where paths have embedded whitespace.
150 * Fix for Cygwin and core integration from Jos I. Boumans
152 * Upgrade zlib source to 1.2.2
154 1.33 - 14 January 2004
156 * Reworked Makefile.PL to avoid creating a private copy of zlib.
157 This both simplifies the build, plus it makes life easier for VMS.
159 * Patches for Makefile.PL to get it to work on VMS supplied by
162 * memGunzip has very slow on FreeBSD. Turns out to be down to
163 the way realloc works on FreeBSD. Changed both inflate & deflate
164 to use exponentially increasing buffer sizes when they need to
165 realloc. Thanks to Peter Jeremy for the lowdown on FreeBSD
168 1.32 - 26 November 2003
170 * Steve Hay reported a problem on rt.cpan.org with Windows and
171 MSCV++ 6.0 where the source from the zlib directory was getting
172 installed with the rest of the module.
173 https://rt.cpan.org/Ticket/Display.html?id=1741
175 This has been fixed by renaming the "zlib" directory to "zlib-src"
176 thus avoiding a conflict with the name of this Perl module.
178 * Fixed a bug in the inflate method where the input buffer is an
179 lvalue (via substr). Problem & solution reported by Salvador Fandiqo.
181 * Tightened up the logic in Makefile.PL when BUILD_ZLIB is
182 True. Issue spotted by Ralf S. Engelschall.
184 1.31 - 29 October 2003
186 * Reinstated the creation of .bak files - $^I seems to need a
187 backup file on Windows. For OpenVMS, the extenstion _bak is used.
189 1.30 - 28 October 2003
191 * Bundled a sub-set of the zlib source with the module and changed
192 the default make behaviour to build with the included zlib source.
193 The previous behaviour of using a pre-built zlib library is
194 still available for those that want it.
196 * Added prototypes to the subs in Zlib.pm that didn't already have
197 them. Patch from Ed Avis.
199 * No .bak files are created by Makefile.PL any more - this keep
200 distclean much happier. Patch suggested by Ed Avis.
201 This also fixes a similar problem reported by Dr. Martin Zinser
204 * Documentation for some of the gz functions updated.
206 * Format strings modified in DispStream to keep OpenVMS happy.
207 Problem reported by Dr. Martin Zinser.
212 * Makefile.PL now displays a warning about not installing
213 Compress::Zlib via the CPAN shell.
215 * Fix to allow intermingling of gzread & gzreadline - patch
216 supplied by Doug Perham.
218 * memGunzip will silently now work if the gzip trailer is
219 missing. Some HTTP Origin Servers seem to leave it out.
223 * Tests 148 & 150 from t/02zlib.t were failing on redhat 9.
225 * Added a few words about the problems with Mac OS X to the README file.
229 * Fixed bug in gzopen where $gzerrno wasn't being set correctly.
230 The symptom was $gzerrno was set to Z_MEM_ERROR although the file
231 was opened ok. If gzopen failed, $gzerrno was being set correctly.
232 This problem wasn't spotted before because the typical test
233 to determine whether gzopen passed or failed was to check its
236 1.19 - 31 October 2002
238 * fixed a problem with t/02zlib.t that was failing with redhat 8.
240 1.18 - 24 October 2002
242 * fixed a Win32 problem in t/02zlib.t by changing sysread to read.
244 * zlib 1.0.5 & older doesn't have gzsetparams & gzeof. Added a new
245 variable to config.in to flag an old version of zlib. Split
246 out the tests for gzsetparams into t/05gzsetp.t
250 * Moved the test to check the versions of libz & zlib.h into a separate
251 file and added troubleshooting notes to README.
253 * In gzopen, only attempt to call "tell" for normal files.
255 * Fixed to work in taint mode.
257 * Broke changes out of README into Changes file.
259 * Replaced internal use of Z_PARTIAL_FLUSH symbol with Z_SYNC_FLUSH.
260 zlib.h says /* will be removed, use Z_SYNC_FLUSH instead */
262 1.16 - 13 December 2001
264 * Fixed bug in Makefile.PL that stopped "perl Makefile.PL PREFIX=..."
267 1.15 - 4th December 2001
269 * Changes a few types to get the module to build on 64-bit Solaris
271 * Changed the up/downgrade logic to default to the older constructs, and
272 to only call a downgrade if specifically requested. Some older versions
273 of Perl were having problems with the in-place edit.
275 * added the new XS constant code.
277 1.14 - 27th August 2001
279 * Memory overwrite bug fixed in "inflate". Kudos to Rob Simons for
280 reporting the bug and to Anton Berezin for fixing it for me.
282 1.13 - 31st June 2001
284 * Make sure config.in is consistant when released.
286 1.12 - 28th April 2001
288 * Modified Makefile.PL to only enable the warnings pragma if
289 using perl 5.6.1 or better.
291 1.11 - 17th February 2001
293 * Added logic in Makefile.PL to toggle between using $^W and
294 the warnings pragma in the module.
296 * The module, the examples & the test harness are now all strict
299 1.10 - 5th February 2001
301 * fixed a bug in memGunzip. Used Z_ERR instead of Z_DATA_ERROR.
303 1.09 - 15th January 2001
305 * Silenced a few compiler warnings.
307 * Updated zlib home site in README & Zlib.pm to www.info-zip.org
309 * Minor typo in Zlib.pm - a link used AUTHORS instead of AUTHOR
310 -- spotted by Frank Martini.
312 * Mention Archive::Zip
314 * added memGunzip. This is largely based on code provided by Jim Leonard.
316 * $deflate->flush can now take an optional parameter. Valid
317 values are Z_NO_FLUSH, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, Z_FULL_FLUSH
318 and Z_FINISH. The default is Z_FINISH.
322 * uncompress was clobbering its input parameter. Now it doesn't.
323 This bug was spotted by Deven T. Corzine.
325 * If a variable that only ever contained a number was given
326 to compress or deflate, it would not be compressed properly. Now
327 it will be coerced to a string and then compressed. This bug
328 was spotted by Deven T. Corzine.
332 * ANSI-ified the static functions in Zlib.xs
334 * Added the ability to build zlib along with the module.
335 This feature is 90% based on a Makefile provided by Gurusamy
340 * Fixed a nasty problem where inflate could truncate the data
341 returned. Thanks to Douglas Thomson <dougt@mugc.cc.monash.edu.au>
342 for both spotting the problem and fixing the bug.
344 * Added a note about the undocumented features in zlib that are
345 required when accessing zip files.
347 * gzclose will now get called automatically when the gzip object is
352 * Previous release used newSVpvn, which doesn't exist in 5.004_04
353 or earlier. Changed to use newSVpv instead.
355 * The module needs Perl 5.004 or better, so updated the version
356 checking in Zlib.pm and Makefile.PL
360 * Bug 19990527.001: compress(undef) core dumps -- Fixed.
364 * Updated to use the new PL_ symbols.
365 Means the module can be built with Perl 5.005_5*
369 * The return codes for gzread, gzreadline and gzwrite were
370 documented incorrectly as returning a status code.
372 * The test harness was missing a "gzclose". This caused problem
373 showed up on an amiga. Thanks to Erik van Roode for reporting
376 * Patched zlib.t for OS/2. Thanks to Ilya Zakharevich for the patch.
380 * A number of fixes to the test suite and the example scripts to
381 allow them to work under win32. All courtesy of Gurusamy
386 * Fixed crc32 & adler32. They were very broken.
388 * The following functions can now take a scalar reference in
389 place of a scalar for their buffer parameters:
398 This should mean applications that make use of the module don't
399 have to copy large buffers around.
402 * Normally the inflate method consumes I<all> of the input buffer
403 before returning. The exception to this is when inflate detects
404 the end of the stream (Z_STREAM_END). In this case the input
405 buffer need not be completely consumed. To allow processing of
406 file formats that embed a deflation stream (e.g. zip, gzip),
407 the inflate method now sets the buffer parameter to be what
408 remains after inflation.
410 When the return status is Z_STREAM_END, it will be what remains
411 of the buffer (if any) after deflation. When the status is Z_OK
412 it will be an empty string.
414 This change means that the buffer parameter must be a lvalue.
416 * Fixed crc32 and adler32. They were both very broken.
418 * Added the Compress::Zlib::memGzip function.
420 0.5 - Confirmed that no changes were necessary for zlib 1.0.3, or 1.0.4.
422 The optional parameters for deflateInit and inflateInit can now
423 be specified as an associative array in addition to a reference
424 to an associative array. They can also accept the -Name
427 gzopen can now optionally take a reference to an open
428 filehandle in place of a filename. In this case it will call
431 Added gzstream example script.
433 0.4 - Upgrade to support zlib 0.99
435 Added dictionary interface.
437 Fixed bug in gzreadline - previously it would keep returning
438 the same buffer. This bug was reported by Helmut Jarausch
440 Removed dependency to zutil.h and so dropped support for
442 DEF_MEM_LEVEL (use MAX_MEM_LEVEL instead)
443 DEF_WBITS (use MAX_WBITS instead)
445 0.3 - Added prototype specification.
447 0.2 - Fixed a minor allocation problem in Zlib.xs
449 0.1 - first alpha release. 2nd October 1995