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

Revision history for Perl extension Convert::UUlib.

1.62
        - major performance improvement by simplifying code in _FP_gets
          to not use fscanf. This might slow things down on platforms
          with very slow fgetc.

1.61 Sun Feb  9 18:38:29 CET 2020
        - lint uulib: fix some format string type mismatches
          and some other minor issues.

1.6  Thu Oct 24 17:11:54 CEST 2019
        - fix heap overflow (testcase by Noel Duffy, reported
          by Robert Scheck). The defense-in-depth mechanism based
          on mmap should make this unexploitable for other than denial
          of service, on systems supporting mmap/mprotect.

1.5  Sat Jul 11 03:56:06 CEST 2015
        - 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.
        - find a safer way to pass in CC/CFLAGS to uulib.
        - added stability canary support.

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:	1.63
Committed:	Fri Feb 14 08:02:26 2020 UTC (4 years, 3 months ago) by root
Branch:	MAIN
Changes since 1.62:	+6 -0 lines
Log Message:	* empty log message *
#	Content
1	Revision history for Perl extension Convert::UUlib.
2
3	1.62
4	- major performance improvement by simplifying code in _FP_gets
5	to not use fscanf. This might slow things down on platforms
6	with very slow fgetc.
7
8	1.61 Sun Feb 9 18:38:29 CET 2020
9	- lint uulib: fix some format string type mismatches
10	and some other minor issues.
11
12	1.6 Thu Oct 24 17:11:54 CEST 2019
13	- fix heap overflow (testcase by Noel Duffy, reported
14	by Robert Scheck). The defense-in-depth mechanism based
15	on mmap should make this unexploitable for other than denial
16	of service, on systems supporting mmap/mprotect.
17
18	1.5 Sat Jul 11 03:56:06 CEST 2015
19	- fix a heap overflow (testcase by Krzysztof Wojtaś).
20	- on systems that support it (posix + mmap + map_anonymous),
21	allocate all dynamic areas via mmap and put four guard
22	pages around them, to catch similar heap overflows
23	safely in the future.
24	- find a safer way to pass in CC/CFLAGS to uulib.
25	- added stability canary support.
26
27	1.4 Sun May 29 17:17:01 CEST 2011
28	- avoid a classical buffer overflow in case a progress
29	message is too long.
30	- this release adds dependencies for snprintf/vsnprintf.
31	- some uuencode encoders do not generate a final "space" line
32	before the "end" marker, so do not rely on the line to be there.
33
34	1.34 Tue Dec 14 22:20:00 CET 2010
35	- fix a one-byte-past-end-write buffer overflow in UURepairData
36	(reported, analysed and testcase provided by Marco Walther).
37	- quoted-printable decoding was completely broken, try a fix.
38
39	1.33 Wed Oct 28 09:04:38 CET 2009
40	- handle yEnc files with part end=0 and total= more gracefully.
41	I wish yEnc had been created by somebody who knows;
42	what he does;
43	but I doubt he even knows;
44	what he did.
45
46	1.32 Wed Sep 16 20:07:13 CEST 2009
47	- Due to a glitch with CVS, configure lacked executable bits.
48	(Quickly reported by Anton Berezin).
49
50	1.31 Wed Sep 16 09:04:30 CEST 2009
51	- do not use system-replacements for case-insensitive string
52	functions when found, as they are broken on too many systems
53	(mostly bsds, as usual, but at least some versions of GNU/Linux
54	disagree with themselves apparently). Analyzed by Anton Berezin.
55
56	1.3 Sat Aug 29 01:24:35 CEST 2009
57	- major changes, new bugs and changes in decoding behaviour are
58	expected (but not intended).
59	- major scanning and decoding speed-up (by a factor of 4),
60	by replacing ultra-slow _FP_gets and improving IsKnownHeader
61	(but fgets is still responsible for >50% if the time).
62	- new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList
63	call after every loadfile, majorly speeds up large decodes
64	(easily by a factor of 10..100).
65	- allow "Smerge -1" to call UUCheckGlobalList.
66	- majorly speed up part insertion (still O(n), but much faster).
67	- allow for 1023 octet headers instead of the standard
68	255 octet ones.
69	- support strcasestr, strcasecmp, strncasecmp for added speed.
70
71	1.12 Mon Oct 13 14:11:01 CEST 2008
72	- use the yencode filesize as additional matching criterium
73	to avoid false matches.
74	- made the example decoder more verbose w.r.t. error handling.
75	- removed potentially confusing decode_temp calls from
76	example decoder.
77
78	1.11 Fri Jun 13 15:32:30 CEST 2008
79	- don't ask.
80
81	1.10 Fri Jun 13 14:22:42 CEST 2008
82	- fix an infinite-looping problem when scanning in freestyle
83	mode (testcase provided by Pieter Geens and Reinhard Pfau).
84
85	1.09 Fri May 25 19:38:11 CEST 2007
86	- create something sensible, trust a windows program to fuck
87	it up: work around literal "(null)" filenames in yenc-encoded
88	files.
89	- some minor cleanups.
90
91	1.08 Sat Dec 16 23:27:13 CET 2006
92	- URGENT update, the last release did not
93	decode files correctly, usually not at all.
94	- my last patch was, of course, completely bogus.
95	(sorry. looked simple...).
96
97	1.07 Sun Dec 10 17:41:46 CET 2006
98	- fixed an uninitialised variable based on analysis
99	and patch by Mark Martinec.
100
101	1.06 Tue Dec 6 00:56:05 CET 2005
102	- fix a number of int/long format errors in the encoding part and
103	fix some signed/unsigned char problems of unknown relevance,
104	reported by Jonas Smedegaard.
105	- new EXPERIMENTAL options OPT_RBUF and OPT_WBUF to set default
106	stdio buffer size for reading and writing files.
107
108	1.051 Thu Mar 3 18:00:52 CET 2005
109	- change of contact address.
110	- updated perl parts to GPLv2.
111
112	1.05 Fri Feb 25 22:50:27 CET 2005
113	- fix a (likely exploitable) segfault problem, (tracked down
114	and/or reported by Mark Martinec and Robert Lewis).
115
116	1.04 Tue Dec 28 15:08:44 CET 2004
117	- slightly improved subject filename extraction.
118	Also see the filename callback in the example-decoder.
119
120	1.03 Sun Apr 18 22:05:43 CEST 2004
121	- upgrade to uudeview-0.5.20, which supposedly fixes a few buffer
122	overflows. However, judging from the patch these vulnerabilities
123	were not present in the Convert-UUlib version (I might err, though,
124	documentation on the actual exploits is scarce).
125	As every uudeview update usually brings more instability than stability
126	I advise against using this version until it has proven itself
127	to be stable, or 1.02 is proven to contain the same buffer overflows.
128
129	1.02 Sun Apr 18 16:47:26 CEST 2004
130	- renamed crc32 to uulib_crc32, to work around yet another
131	shortcoming in this oh-so-outdated macosx.
132
133	1.01 Sun Feb 1 19:49:51 CET 2004
134	- make it compile with 5.005_03 (reported by Anton Berezin).
135	- very short files might not be detected because the header
136	parsing code might skip them.
137
138	1.0 Thu Nov 6 14:32:08 CET 2003
139	- change bracket policy to give priority to (x/y) over (x),
140	and use the last bracket found otherwise.
141	- part numbers at the end of the subject are now recognized.
142	- updated to uulib-0.5.19. Differences and bugfixes kept.
143
144	0.31 Wed Oct 16 01:22:34 CEST 2002
145	- no internal code changes.
146	- much better documentation, now considered "useful".
147	- removed the procedural interface.
148	- fought the wish to perl-5.8'ify and thus simplify the code :().
149	- stress-tested version 0.3 against 70000 data postings since sunday.
150
151	0.3 Sun Oct 13 15:12:11 CEST 2002
152	- updated to uulib 0.5.18. As expected, some but not all of my bugfixes
153	have went into uulib, so the number of differences decreased a bit
154	again.
155	- I found out that the library is being sold commercially by Frank
156	Pilhofer, disregarding the GPL and ignoring the rights of the people
157	who sent in patches :(
158	- vastly more useful documentation in the .pm file.
159	- much smaller distribution filesize ;)
160
161	0.213 Sat Jul 27 21:16:30 CEST 2002
162	- fixed another buffer overflow, also added a santity check to fgets.
163
164	0.212 Sat Apr 6 03:52:13 CEST 2002
165	- fix yEnc decoding support.
166	- new option OPT_DOTDOT, that makes uulib unescape dot-escaping.
167	- increased linelength to 1195.
168
169	0.211 Fri Apr 5 23:56:46 CEST 2002
170	- sigh. new version of uulib, new braindamaged buffer overflows
171	fixed. Diffs like "line length 256 => 300" should have
172	alerted me...
173
174	0.21 Sun Mar 31 22:06:05 CEST 2002
175	- bumped uulib from 0.5.15 to 0.5.17 (adds some yEnc support, YENC_ENCODED).
176	- source-renamed FP_-symbols to _FP_ again, but still define them
177	to be FP_* in the object file.
178	- new callback: SetFileNameCallback (actually documented ;)
179
180	0.201 Sun Sep 16 03:43:38 CEST 2001
181	- fixed another segfault-bug in uulib, thanks to Lars Hecking who
182	provides all the test files ;)
183
184	0.2 Thu Jun 14 18:42:49 CEST 2001
185	- Frank Pilhofer is NOT dead! He is alive, kicking, and fixing
186	bugs in uulib now! Since his uulib and mine diverged quite
187	a bit I am still in the process of merging his bugfixes
188	into my version. So be aware that this might introduce new
189	instabilities...
190	- merged uulib-0.5.15
191	- optimize decode_file to not copy the file contents when a rename
192	succeeds (TMPDIR same disk as destination).
193	- updated documentation.
194
195	0.111 Fri May 4 22:29:09 CEST 2001
196	- heuristic to decode microsoft-rfc822-headers (microsoft uses
197	'\' as path seperator which is also the rfc822 quote character.
198	of course they could have quoted it, but it's microsoft, so
199	only the devil knows how they try to parse mime (they obviously
200	haven't read the standard AGAIN). in case you wonder, this fixes
201	the "c:my_documentssend.doc" "filename" problem.
202
203	0.11 Sun Jul 16 22:42:57 CEST 2000
204	- fixed a bug in the file callback.
205
206	0.10 Tue May 2 03:31:09 CEST 2000
207	- fixed one very longstanding bug that might have been the cause
208	for the many mysterious segmentation faults. Hopefully.
209	- improved documentation to the point that it slowly becomes useful
210	as a (very quick) reference.
211
212	0.07 Wed Nov 24 18:45:23 CET 1999
213	- removed END { CleanUp } from UUlib.pm, perl is too
214	buggy to rely on this in the face of popen etc..
215
216	0.06 Thu Jul 29 22:48:18 CEST 1999
217	- Thierry Bezecourt had the very reasonable idea to include
218	the example source in the manpage.
219
220	0.05 Mon May 24 11:37:25 CEST 1999
221	- LoadFile returns number of parts loaded.
222
223	0.04 Mon May 10 22:02:31 CEST 1999
224	- fixed a couple of portability problems.
225	- UUEncodeToStream had a wrong definition.
226	- added primitive testsuite.
227	- added README.
228
229	0.03 Sat May 8 22:40:01 CEST 1999
230	- renamed it to Convert::UUlib.
231
232	0.02 Fri May 7 01:26:19 CEST 1999
233	- function names exportable (use :all-tag).
234	- made uulist-related functions methods.
235	- the first fix from cpan-tester. sigh you people save the
236	world, continuously.
237
238	0.01 Thu May 6 14:30:44 1999
239	- original version; created by h2xs 1.19
240