[ViewVC] Annotation of: cvs/Convert-UUlib/Changes

Revision history for Perl extension Convert::UUlib.

1.5
        - fix a heap overflow (testcase by Krzysztof Wojtaś).
        - on systems that support it (posix + mmap + map_anonymous),
          allocate all dynamic areas via mmap and put four guard
          pages around them, to catch similar heap overflows
          safely in the future.

1.4  Sun May 29 17:17:01 CEST 2011
        - avoid a classical buffer overflow in case a progress
          message is too long.
        - this release adds dependencies for snprintf/vsnprintf.
        - some uuencode encoders do not generate a final "space" line
          before the "end" marker, so do not rely on the line to be there.

1.34 Tue Dec 14 22:20:00 CET 2010
        - fix a one-byte-past-end-write buffer overflow in UURepairData
          (reported, analysed and testcase provided by Marco Walther).
        - quoted-printable decoding was completely broken, try a fix.

1.33 Wed Oct 28 09:04:38 CET 2009
        - handle yEnc files with part end=0 and total= more gracefully.
          I wish yEnc had been created by somebody who knows;
          what he does;
          but I doubt he even knows;
          what he did.

1.32 Wed Sep 16 20:07:13 CEST 2009
        - Due to a glitch with CVS, configure lacked executable bits.
          (Quickly reported by Anton Berezin).

1.31 Wed Sep 16 09:04:30 CEST 2009
        - do not use system-replacements for case-insensitive string
          functions when found, as they are broken on too many systems
          (mostly bsds, as usual, but at least some versions of GNU/Linux
          disagree with themselves apparently). Analyzed by Anton Berezin.

1.3 Sat Aug 29 01:24:35 CEST 2009
        - major changes, new bugs and changes in decoding behaviour are
          expected (but not intended).
        - major scanning and decoding speed-up (by a factor of 4),
          by replacing ultra-slow _FP_gets and improving IsKnownHeader
          (but fgets is *still* responsible for >50% if the time).
        - new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList
          call after every loadfile, majorly speeds up large decodes
          (easily by a factor of 10..100).
        - allow "Smerge -1" to call UUCheckGlobalList.
        - majorly speed up part insertion (still O(n), but much faster).
        - allow for 1023 octet headers instead of the standard
          255 octet ones.
        - support strcasestr, strcasecmp, strncasecmp for added speed.

1.12 Mon Oct 13 14:11:01 CEST 2008
        - use the yencode filesize as additional matching criterium
          to avoid false matches.
        - made the example decoder more verbose w.r.t. error handling.
        - removed potentially confusing decode_temp calls from
          example decoder.

1.11 Fri Jun 13 15:32:30 CEST 2008
        - don't ask.

1.10 Fri Jun 13 14:22:42 CEST 2008
        - fix an infinite-looping problem when scanning in freestyle
          mode (testcase provided by Pieter Geens and Reinhard Pfau).

1.09 Fri May 25 19:38:11 CEST 2007
        - create something sensible, trust a windows program to fuck
          it up: work around literal "(null)" filenames in yenc-encoded
          files.
        - some minor cleanups.

1.08 Sat Dec 16 23:27:13 CET 2006
        - URGENT update, the last release did not
          decode files correctly, usually not at all.
        - my last patch was, of course, completely bogus.
          (sorry. looked simple...).

1.07 Sun Dec 10 17:41:46 CET 2006
        - fixed an uninitialised variable based on analysis
          and patch by Mark Martinec.

1.06 Tue Dec  6 00:56:05 CET 2005
        - fix a number of int/long format errors in the encoding part and
          fix some signed/unsigned char problems of unknown relevance,
          reported by Jonas Smedegaard.
        - new EXPERIMENTAL options OPT_RBUF and OPT_WBUF to set default
          stdio buffer size for reading and writing files.

1.051 Thu Mar  3 18:00:52 CET 2005
        - change of contact address.
        - updated perl parts to GPLv2.

1.05 Fri Feb 25 22:50:27 CET 2005
        - fix a (likely exploitable) segfault problem, (tracked down
          and/or reported by Mark Martinec and Robert Lewis).

1.04 Tue Dec 28 15:08:44 CET 2004
        - slightly improved subject filename extraction.
          Also see the filename callback in the example-decoder.

1.03 Sun Apr 18 22:05:43 CEST 2004
        - upgrade to uudeview-0.5.20, which supposedly fixes a few buffer
          overflows. However, judging from the patch these vulnerabilities
          were not present in the Convert-UUlib version (I might err, though,
          documentation on the actual exploits is scarce).
          As every uudeview update usually brings more instability than stability
          I advise against using this version until it has proven itself
          to be stable, or 1.02 is proven to contain the same buffer overflows.

1.02 Sun Apr 18 16:47:26 CEST 2004
        - renamed crc32 to uulib_crc32, to work around yet another
          shortcoming in this oh-so-outdated macosx.

1.01 Sun Feb  1 19:49:51 CET 2004
        - make it compile with 5.005_03 (reported by Anton Berezin).
        - very short files might not be detected because the header
          parsing code might skip them.

1.0  Thu Nov  6 14:32:08 CET 2003
        - change bracket policy to give priority to (x/y) over (x),
          and use the last bracket found otherwise.
        - part numbers at the end of the subject are now recognized.
        - updated to uulib-0.5.19. Differences and bugfixes kept.

0.31 Wed Oct 16 01:22:34 CEST 2002
        - no internal code changes.
        - much better documentation, now considered "useful".
        - removed the procedural interface.
        - fought the wish to perl-5.8'ify and thus simplify the code :().
        - stress-tested version 0.3 against 70000 data postings since sunday.

0.3   Sun Oct 13 15:12:11 CEST 2002
        - updated to uulib 0.5.18. As expected, some but not all of my bugfixes
          have went into uulib, so the number of differences decreased a bit
          again.
        - I found out that the library is being sold commercially by Frank
          Pilhofer, disregarding the GPL and ignoring the rights of the people
          who sent in patches :(
        - vastly more useful documentation in the .pm file.
        - much smaller distribution filesize ;)

0.213 Sat Jul 27 21:16:30 CEST 2002
        - fixed another buffer overflow, also added a santity check to fgets.

0.212 Sat Apr  6 03:52:13 CEST 2002
        - fix yEnc decoding support.
        - new option OPT_DOTDOT, that makes uulib unescape dot-escaping.
        - increased linelength to 1195.

0.211 Fri Apr  5 23:56:46 CEST 2002
        - *sigh*. new version of uulib, new braindamaged buffer overflows
          fixed. Diffs like "line length 256 => 300" should have
          alerted me...

0.21  Sun Mar 31 22:06:05 CEST 2002
        - bumped uulib from 0.5.15 to 0.5.17 (adds some yEnc support, YENC_ENCODED).
        - source-renamed FP_*-symbols to _FP_* again, but still define them
          to be FP_* in the object file.
        - new callback: SetFileNameCallback (actually documented ;)

0.201 Sun Sep 16 03:43:38 CEST 2001
        - fixed another segfault-bug in uulib, thanks to Lars Hecking who
          provides all the test files ;)

0.2  Thu Jun 14 18:42:49 CEST 2001
        - Frank Pilhofer is NOT dead! He is alive, kicking, and fixing
          bugs in uulib now! Since his uulib and mine diverged quite
          a bit I am still in the process of merging his bugfixes
          into my version. So be aware that this might introduce new
          instabilities...
        - merged uulib-0.5.15
        - optimize decode_file to not copy the file contents when a rename
          succeeds (TMPDIR same disk as destination).
        - updated documentation.

0.111 Fri May  4 22:29:09 CEST 2001
        - heuristic to decode microsoft-rfc822-headers (microsoft uses
          '\' as path seperator which is also the rfc822 quote character.
          of course they could have quoted it, but it's microsoft, so
          only the devil knows how they try to parse mime (they obviously
          haven't read the standard AGAIN). in case you wonder, this fixes
          the "c:my_documentssend.doc" "filename" problem.

0.11  Sun Jul 16 22:42:57 CEST 2000
        - fixed a bug in the file callback.

0.10  Tue May  2 03:31:09 CEST 2000
        - fixed one very longstanding bug that might have been the cause
          for the many mysterious segmentation faults. Hopefully.
        - improved documentation to the point that it slowly becomes useful
          as a (very quick) reference.

0.07  Wed Nov 24 18:45:23 CET 1999
        - removed END { CleanUp } from UUlib.pm, perl is too
          buggy to rely on this in the face of popen etc..

0.06  Thu Jul 29 22:48:18 CEST 1999
        - Thierry Bezecourt had the very reasonable idea to include
          the example source in the manpage.

0.05  Mon May 24 11:37:25 CEST 1999
        - LoadFile returns number of parts loaded.

0.04  Mon May 10 22:02:31 CEST 1999
        - fixed a couple of portability problems.
        - UUEncodeToStream had a wrong definition.
        - added primitive testsuite.
        - added README.

0.03  Sat May  8 22:40:01 CEST 1999
        - renamed it to Convert::UUlib.

0.02  Fri May  7 01:26:19 CEST 1999
        - function names exportable (use :all-tag).
        - made uulist-related functions methods.
        - the first fix from cpan-tester. *sigh* you people save the
          world, continuously.

0.01  Thu May  6 14:30:44 1999
        - original version; created by h2xs 1.19

Revision:	1.58
Committed:	Fri Jul 10 01:17:08 2015 UTC (8 years, 10 months ago) by root
Branch:	MAIN
Changes since 1.57:	+7 -0 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	Revision history for Perl extension Convert::UUlib.
2
3	root	1.58	1.5
4			- fix a heap overflow (testcase by Krzysztof Wojtaś).
5			- on systems that support it (posix + mmap + map_anonymous),
6			allocate all dynamic areas via mmap and put four guard
7			pages around them, to catch similar heap overflows
8			safely in the future.
9
10	root	1.56	1.4 Sun May 29 17:17:01 CEST 2011
11			- avoid a classical buffer overflow in case a progress
12			message is too long.
13	root	1.57	- this release adds dependencies for snprintf/vsnprintf.
14	root	1.55	- some uuencode encoders do not generate a final "space" line
15			before the "end" marker, so do not rely on the line to be there.
16
17	root	1.54	1.34 Tue Dec 14 22:20:00 CET 2010
18	root	1.53	- fix a one-byte-past-end-write buffer overflow in UURepairData
19			(reported, analysed and testcase provided by Marco Walther).
20			- quoted-printable decoding was completely broken, try a fix.
21
22	root	1.52	1.33 Wed Oct 28 09:04:38 CET 2009
23	root	1.51	- handle yEnc files with part end=0 and total= more gracefully.
24			I wish yEnc had been created by somebody who knows;
25			what he does;
26			but I doubt he even knows;
27			what he did.
28
29	root	1.50	1.32 Wed Sep 16 20:07:13 CEST 2009
30			- Due to a glitch with CVS, configure lacked executable bits.
31			(Quickly reported by Anton Berezin).
32
33	root	1.49	1.31 Wed Sep 16 09:04:30 CEST 2009
34	root	1.48	- do not use system-replacements for case-insensitive string
35			functions when found, as they are broken on too many systems
36			(mostly bsds, as usual, but at least some versions of GNU/Linux
37			disagree with themselves apparently). Analyzed by Anton Berezin.
38
39	root	1.47	1.3 Sat Aug 29 01:24:35 CEST 2009
40	root	1.46	- major changes, new bugs and changes in decoding behaviour are
41			expected (but not intended).
42	root	1.47	- major scanning and decoding speed-up (by a factor of 4),
43	root	1.46	by replacing ultra-slow _FP_gets and improving IsKnownHeader
44			(but fgets is still responsible for >50% if the time).
45	root	1.44	- new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList
46	root	1.45	call after every loadfile, majorly speeds up large decodes
47			(easily by a factor of 10..100).
48			- allow "Smerge -1" to call UUCheckGlobalList.
49			- majorly speed up part insertion (still O(n), but much faster).
50			- allow for 1023 octet headers instead of the standard
51			255 octet ones.
52			- support strcasestr, strcasecmp, strncasecmp for added speed.
53	root	1.44
54	root	1.43	1.12 Mon Oct 13 14:11:01 CEST 2008
55	root	1.41	- use the yencode filesize as additional matching criterium
56			to avoid false matches.
57	root	1.42	- made the example decoder more verbose w.r.t. error handling.
58	root	1.56	- removed potentially confusing decode_temp calls from
59	root	1.43	example decoder.
60	root	1.41
61	root	1.39	1.11 Fri Jun 13 15:32:30 CEST 2008
62			- don't ask.
63
64	root	1.38	1.10 Fri Jun 13 14:22:42 CEST 2008
65			- fix an infinite-looping problem when scanning in freestyle
66	root	1.40	mode (testcase provided by Pieter Geens and Reinhard Pfau).
67	root	1.38
68	root	1.37	1.09 Fri May 25 19:38:11 CEST 2007
69			- create something sensible, trust a windows program to fuck
70			it up: work around literal "(null)" filenames in yenc-encoded
71			files.
72			- some minor cleanups.
73
74	root	1.33	1.08 Sat Dec 16 23:27:13 CET 2006
75	root	1.34	- URGENT update, the last release did not
76	root	1.33	decode files correctly, usually not at all.
77	root	1.38	- my last patch was, of course, completely bogus.
78	root	1.33	(sorry. looked simple...).
79
80	root	1.32	1.07 Sun Dec 10 17:41:46 CET 2006
81			- fixed an uninitialised variable based on analysis
82	root	1.33	and patch by Mark Martinec.
83	root	1.32
84	root	1.31	1.06 Tue Dec 6 00:56:05 CET 2005
85	root	1.29	- fix a number of int/long format errors in the encoding part and
86			fix some signed/unsigned char problems of unknown relevance,
87			reported by Jonas Smedegaard.
88	root	1.30	- new EXPERIMENTAL options OPT_RBUF and OPT_WBUF to set default
89			stdio buffer size for reading and writing files.
90	root	1.29
91	root	1.28	1.051 Thu Mar 3 18:00:52 CET 2005
92			- change of contact address.
93			- updated perl parts to GPLv2.
94
95	root	1.27	1.05 Fri Feb 25 22:50:27 CET 2005
96			- fix a (likely exploitable) segfault problem, (tracked down
97			and/or reported by Mark Martinec and Robert Lewis).
98
99	root	1.26	1.04 Tue Dec 28 15:08:44 CET 2004
100			- slightly improved subject filename extraction.
101			Also see the filename callback in the example-decoder.
102
103	root	1.25	1.03 Sun Apr 18 22:05:43 CEST 2004
104			- upgrade to uudeview-0.5.20, which supposedly fixes a few buffer
105			overflows. However, judging from the patch these vulnerabilities
106			were not present in the Convert-UUlib version (I might err, though,
107			documentation on the actual exploits is scarce).
108			As every uudeview update usually brings more instability than stability
109			I advise against using this version until it has proven itself
110			to be stable, or 1.02 is proven to contain the same buffer overflows.
111
112	root	1.24	1.02 Sun Apr 18 16:47:26 CEST 2004
113			- renamed crc32 to uulib_crc32, to work around yet another
114			shortcoming in this oh-so-outdated macosx.
115
116	root	1.23	1.01 Sun Feb 1 19:49:51 CET 2004
117	root	1.22	- make it compile with 5.005_03 (reported by Anton Berezin).
118	root	1.23	- very short files might not be detected because the header
119			parsing code might skip them.
120	root	1.22
121	root	1.21	1.0 Thu Nov 6 14:32:08 CET 2003
122	root	1.20	- change bracket policy to give priority to (x/y) over (x),
123			and use the last bracket found otherwise.
124			- part numbers at the end of the subject are now recognized.
125	root	1.21	- updated to uulib-0.5.19. Differences and bugfixes kept.
126	root	1.20
127	root	1.19	0.31 Wed Oct 16 01:22:34 CEST 2002
128			- no internal code changes.
129	root	1.18	- much better documentation, now considered "useful".
130			- removed the procedural interface.
131	root	1.20	- fought the wish to perl-5.8'ify and thus simplify the code :().
132	root	1.19	- stress-tested version 0.3 against 70000 data postings since sunday.
133	root	1.18
134	root	1.15	0.3 Sun Oct 13 15:12:11 CEST 2002
135	root	1.17	- updated to uulib 0.5.18. As expected, some but not all of my bugfixes
136	root	1.20	have went into uulib, so the number of differences decreased a bit
137	root	1.17	again.
138			- I found out that the library is being sold commercially by Frank
139			Pilhofer, disregarding the GPL and ignoring the rights of the people
140			who sent in patches :(
141	root	1.14	- vastly more useful documentation in the .pm file.
142	root	1.16	- much smaller distribution filesize ;)
143	root	1.14
144	root	1.12	0.213 Sat Jul 27 21:16:30 CEST 2002
145			- fixed another buffer overflow, also added a santity check to fgets.
146
147	root	1.10	0.212 Sat Apr 6 03:52:13 CEST 2002
148			- fix yEnc decoding support.
149			- new option OPT_DOTDOT, that makes uulib unescape dot-escaping.
150	root	1.11	- increased linelength to 1195.
151	root	1.10
152	root	1.9	0.211 Fri Apr 5 23:56:46 CEST 2002
153	root	1.13	- sigh. new version of uulib, new braindamaged buffer overflows
154			fixed. Diffs like "line length 256 => 300" should have
155	root	1.9	alerted me...
156
157	root	1.7	0.21 Sun Mar 31 22:06:05 CEST 2002
158			- bumped uulib from 0.5.15 to 0.5.17 (adds some yEnc support, YENC_ENCODED).
159			- source-renamed FP_-symbols to _FP_ again, but still define them
160			to be FP_* in the object file.
161	root	1.8	- new callback: SetFileNameCallback (actually documented ;)
162	root	1.7
163	root	1.6	0.201 Sun Sep 16 03:43:38 CEST 2001
164	root	1.5	- fixed another segfault-bug in uulib, thanks to Lars Hecking who
165			provides all the test files ;)
166	root	1.2
167	root	1.5	0.2 Thu Jun 14 18:42:49 CEST 2001
168			- Frank Pilhofer is NOT dead! He is alive, kicking, and fixing
169	root	1.1	bugs in uulib now! Since his uulib and mine diverged quite
170			a bit I am still in the process of merging his bugfixes
171			into my version. So be aware that this might introduce new
172			instabilities...
173			- merged uulib-0.5.15
174	root	1.3	- optimize decode_file to not copy the file contents when a rename
175			succeeds (TMPDIR same disk as destination).
176	root	1.4	- updated documentation.
177	root	1.1
178			0.111 Fri May 4 22:29:09 CEST 2001
179			- heuristic to decode microsoft-rfc822-headers (microsoft uses
180			'\' as path seperator which is also the rfc822 quote character.
181			of course they could have quoted it, but it's microsoft, so
182			only the devil knows how they try to parse mime (they obviously
183			haven't read the standard AGAIN). in case you wonder, this fixes
184			the "c:my_documentssend.doc" "filename" problem.
185
186			0.11 Sun Jul 16 22:42:57 CEST 2000
187			- fixed a bug in the file callback.
188
189			0.10 Tue May 2 03:31:09 CEST 2000
190			- fixed one very longstanding bug that might have been the cause
191			for the many mysterious segmentation faults. Hopefully.
192			- improved documentation to the point that it slowly becomes useful
193			as a (very quick) reference.
194
195			0.07 Wed Nov 24 18:45:23 CET 1999
196			- removed END { CleanUp } from UUlib.pm, perl is too
197			buggy to rely on this in the face of popen etc..
198
199			0.06 Thu Jul 29 22:48:18 CEST 1999
200			- Thierry Bezecourt had the very reasonable idea to include
201			the example source in the manpage.
202
203			0.05 Mon May 24 11:37:25 CEST 1999
204			- LoadFile returns number of parts loaded.
205
206			0.04 Mon May 10 22:02:31 CEST 1999
207			- fixed a couple of portability problems.
208			- UUEncodeToStream had a wrong definition.
209			- added primitive testsuite.
210			- added README.
211
212			0.03 Sat May 8 22:40:01 CEST 1999
213			- renamed it to Convert::UUlib.
214
215			0.02 Fri May 7 01:26:19 CEST 1999
216			- function names exportable (use :all-tag).
217			- made uulist-related functions methods.
218			- the first fix from cpan-tester. sigh you people save the
219			world, continuously.
220
221			0.01 Thu May 6 14:30:44 1999
222			- original version; created by h2xs 1.19
223