6 * Fixed gzread to zap the output buffer to an empty string when zero
7 bytes are requested. This matches the behaviour of C::Z 1.x
13 2.000_10 13 March 2006
15 * Changed gzread so that its behaviour matches C::Z::gzread 1.x if it
16 is called after eof. In this case it will write an empty string
17 into the output parameter. This change is solely for backward
18 compatability reasons.
26 * Breakout zlib specific code into separate modules.
28 * Limited support for reading/writing zip files
30 2.000_06 5 October 2005
32 * Added eof parameter to Compress::Zlib::inflate method.
34 * Fixed issue with 64-bit
36 2.000_05 4 October 2005
38 * Renamed IO::* to IO::Compress::* & IO::Uncompress::*
40 2.000_04 23 September 2005
42 * Fixed some more non-portable test that were failing on VMS.
44 * fixed problem where error messages in the oneshot interface were
47 2.000_03 12 September 2005
49 * Fixed some non-portable test that were failing on VMS.
51 * Fixed export of zlib constants from the IO::* classes
53 2.000_02 6 September 2005
55 * Split Append mode into Append and Merge
57 * Fixed typos in the documentation.
61 * Added libscan to Makefile.PL
63 * Added InputLength for IO::Gunzip et al
65 2.000_01 22 August 2005
67 * Fixed VERSION in Compress::Gzip::Constants
69 * Removed Compress::Gzip::Info from the distribution.
71 2.000_00 21 August 2005
73 * First Beta relase of Compress::zlib rewrite.
75 1.38 - 6 September 2005
77 * Integrate core change 25304 -- Symbian Update
79 * Added libscan to Makefile.PL
83 * Change to t/03examples.t for VMS from Abe Timmerman
87 * Renamed zlib-src-1.2.3 to zlib-src to help VMS
89 * Fixed Makefile.PL for VMS
91 * Fixed t/03examples.t for VMS
93 * Added a couple of notes about incompatibility with Unix compress.
97 * Updated zlib source to 1.2.3
99 * Fixed problem with where two calls to gzclose would hang the debugger.
100 See https://rt.cpan.org/Ticket/Display.html?id=13789
102 * Added code from Alexey Tourbin to use XSLoader when available,
103 and DynaLoader otherwise.
105 * Documented that the compress & uncompress functions were not
106 the same as the Unix utilities of the same name.
108 * Fixed 05gzsetp -- it left a temp file hanging around.
110 * Integrate core change 24787 - SvUPGRADE returns void in blead
112 * Integrate core change 24788 - Makefile.PL adjustments for the core
115 1.34 - 30 January 2005
117 * Fixed typo in the README
119 * Fixed examples.t on Win32 where paths have embedded whitespace.
121 * Fix for Cygwin and core integration from Jos I. Boumans
123 * Upgrade zlib source to 1.2.2
125 1.33 - 14 January 2004
127 * Reworked Makefile.PL to avoid creating a private copy of zlib.
128 This both simplifies the build, plus it makes life easier for VMS.
130 * Patches for Makefile.PL to get it to work on VMS supplied by
133 * memGunzip has very slow on FreeBSD. Turns out to be down to
134 the way realloc works on FreeBSD. Changed both inflate & deflate
135 to use exponentially increasing buffer sizes when they need to
136 realloc. Thanks to Peter Jeremy for the lowdown on FreeBSD
139 1.32 - 26 November 2003
141 * Steve Hay reported a problem on rt.cpan.org with Windows and
142 MSCV++ 6.0 where the source from the zlib directory was getting
143 installed with the rest of the module.
144 https://rt.cpan.org/Ticket/Display.html?id=1741
146 This has been fixed by renaming the "zlib" directory to "zlib-src"
147 thus avoiding a conflict with the name of this Perl module.
149 * Fixed a bug in the inflate method where the input buffer is an
150 lvalue (via substr). Problem & solution reported by Salvador Fandiqo.
152 * Tightened up the logic in Makefile.PL when BUILD_ZLIB is
153 True. Issue spotted by Ralf S. Engelschall.
155 1.31 - 29 October 2003
157 * Reinstated the creation of .bak files - $^I seems to need a
158 backup file on Windows. For OpenVMS, the extenstion _bak is used.
160 1.30 - 28 October 2003
162 * Bundled a sub-set of the zlib source with the module and changed
163 the default make behaviour to build with the included zlib source.
164 The previous behaviour of using a pre-built zlib library is
165 still available for those that want it.
167 * Added prototypes to the subs in Zlib.pm that didn't already have
168 them. Patch from Ed Avis.
170 * No .bak files are created by Makefile.PL any more - this keep
171 distclean much happier. Patch suggested by Ed Avis.
172 This also fixes a similar problem reported by Dr. Martin Zinser
175 * Documentation for some of the gz functions updated.
177 * Format strings modified in DispStream to keep OpenVMS happy.
178 Problem reported by Dr. Martin Zinser.
183 * Makefile.PL now displays a warning about not installing
184 Compress::Zlib via the CPAN shell.
186 * Fix to allow intermingling of gzread & gzreadline - patch
187 supplied by Doug Perham.
189 * memGunzip will silently now work if the gzip trailer is
190 missing. Some HTTP Origin Servers seem to leave it out.
194 * Tests 148 & 150 from t/02zlib.t were failing on redhat 9.
196 * Added a few words about the problems with Mac OS X to the README file.
200 * Fixed bug in gzopen where $gzerrno wasn't being set correctly.
201 The symptom was $gzerrno was set to Z_MEM_ERROR although the file
202 was opened ok. If gzopen failed, $gzerrno was being set correctly.
203 This problem wasn't spotted before because the typical test
204 to determine whether gzopen passed or failed was to check its
207 1.19 - 31 October 2002
209 * fixed a problem with t/02zlib.t that was failing with redhat 8.
211 1.18 - 24 October 2002
213 * fixed a Win32 problem in t/02zlib.t by changing sysread to read.
215 * zlib 1.0.5 & older doesn't have gzsetparams & gzeof. Added a new
216 variable to config.in to flag an old version of zlib. Split
217 out the tests for gzsetparams into t/05gzsetp.t
221 * Moved the test to check the versions of libz & zlib.h into a separate
222 file and added troubleshooting notes to README.
224 * In gzopen, only attempt to call "tell" for normal files.
226 * Fixed to work in taint mode.
228 * Broke changes out of README into Changes file.
230 * Replaced internal use of Z_PARTIAL_FLUSH symbol with Z_SYNC_FLUSH.
231 zlib.h says /* will be removed, use Z_SYNC_FLUSH instead */
233 1.16 - 13 December 2001
235 * Fixed bug in Makefile.PL that stopped "perl Makefile.PL PREFIX=..."
238 1.15 - 4th December 2001
240 * Changes a few types to get the module to build on 64-bit Solaris
242 * Changed the up/downgrade logic to default to the older constructs, and
243 to only call a downgrade if specifically requested. Some older versions
244 of Perl were having problems with the in-place edit.
246 * added the new XS constant code.
248 1.14 - 27th August 2001
250 * Memory overwrite bug fixed in "inflate". Kudos to Rob Simons for
251 reporting the bug and to Anton Berezin for fixing it for me.
253 1.13 - 31st June 2001
255 * Make sure config.in is consistant when released.
257 1.12 - 28th April 2001
259 * Modified Makefile.PL to only enable the warnings pragma if
260 using perl 5.6.1 or better.
262 1.11 - 17th February 2001
264 * Added logic in Makefile.PL to toggle between using $^W and
265 the warnings pragma in the module.
267 * The module, the examples & the test harness are now all strict
270 1.10 - 5th February 2001
272 * fixed a bug in memGunzip. Used Z_ERR instead of Z_DATA_ERROR.
274 1.09 - 15th January 2001
276 * Silenced a few compiler warnings.
278 * Updated zlib home site in README & Zlib.pm to www.info-zip.org
280 * Minor typo in Zlib.pm - a link used AUTHORS instead of AUTHOR
281 -- spotted by Frank Martini.
283 * Mention Archive::Zip
285 * added memGunzip. This is largely based on code provided by Jim Leonard.
287 * $deflate->flush can now take an optional parameter. Valid
288 values are Z_NO_FLUSH, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, Z_FULL_FLUSH
289 and Z_FINISH. The default is Z_FINISH.
293 * uncompress was clobbering its input parameter. Now it doesn't.
294 This bug was spotted by Deven T. Corzine.
296 * If a variable that only ever contained a number was given
297 to compress or deflate, it would not be compressed properly. Now
298 it will be coerced to a string and then compressed. This bug
299 was spotted by Deven T. Corzine.
303 * ANSI-ified the static functions in Zlib.xs
305 * Added the ability to build zlib along with the module.
306 This feature is 90% based on a Makefile provided by Gurusamy
311 * Fixed a nasty problem where inflate could truncate the data
312 returned. Thanks to Douglas Thomson <dougt@mugc.cc.monash.edu.au>
313 for both spotting the problem and fixing the bug.
315 * Added a note about the undocumented features in zlib that are
316 required when accessing zip files.
318 * gzclose will now get called automatically when the gzip object is
323 * Previous release used newSVpvn, which doesn't exist in 5.004_04
324 or earlier. Changed to use newSVpv instead.
326 * The module needs Perl 5.004 or better, so updated the version
327 checking in Zlib.pm and Makefile.PL
331 * Bug 19990527.001: compress(undef) core dumps -- Fixed.
335 * Updated to use the new PL_ symbols.
336 Means the module can be built with Perl 5.005_5*
340 * The return codes for gzread, gzreadline and gzwrite were
341 documented incorrectly as returning a status code.
343 * The test harness was missing a "gzclose". This caused problem
344 showed up on an amiga. Thanks to Erik van Roode for reporting
347 * Patched zlib.t for OS/2. Thanks to Ilya Zakharevich for the patch.
351 * A number of fixes to the test suite and the example scripts to
352 allow them to work under win32. All courtesy of Gurusamy
357 * Fixed crc32 & adler32. They were very broken.
359 * The following functions can now take a scalar reference in
360 place of a scalar for their buffer parameters:
369 This should mean applications that make use of the module don't
370 have to copy large buffers around.
373 * Normally the inflate method consumes I<all> of the input buffer
374 before returning. The exception to this is when inflate detects
375 the end of the stream (Z_STREAM_END). In this case the input
376 buffer need not be completely consumed. To allow processing of
377 file formats that embed a deflation stream (e.g. zip, gzip),
378 the inflate method now sets the buffer parameter to be what
379 remains after inflation.
381 When the return status is Z_STREAM_END, it will be what remains
382 of the buffer (if any) after deflation. When the status is Z_OK
383 it will be an empty string.
385 This change means that the buffer parameter must be a lvalue.
387 * Fixed crc32 and adler32. They were both very broken.
389 * Added the Compress::Zlib::memGzip function.
391 0.5 - Confirmed that no changes were necessary for zlib 1.0.3, or 1.0.4.
393 The optional parameters for deflateInit and inflateInit can now
394 be specified as an associative array in addition to a reference
395 to an associative array. They can also accept the -Name
398 gzopen can now optionally take a reference to an open
399 filehandle in place of a filename. In this case it will call
402 Added gzstream example script.
404 0.4 - Upgrade to support zlib 0.99
406 Added dictionary interface.
408 Fixed bug in gzreadline - previously it would keep returning
409 the same buffer. This bug was reported by Helmut Jarausch
411 Removed dependency to zutil.h and so dropped support for
413 DEF_MEM_LEVEL (use MAX_MEM_LEVEL instead)
414 DEF_WBITS (use MAX_WBITS instead)
416 0.3 - Added prototype specification.
418 0.2 - Fixed a minor allocation problem in Zlib.xs
420 0.1 - first alpha release. 2nd October 1995