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Comparing Convert-UUlib/Changes (file contents):
Revision 1.6 by root, Sun Feb 10 22:47:17 2002 UTC vs.
Revision 1.90 by root, Sat Sep 24 07:01:44 2022 UTC

1Revision history for Perl extension Convert::UUlib. 1Revision history for Perl extension Convert::UUlib.
2
3TODO: biggest timesinks: FP_fgets/getc_unlocked overall, UUInsertPartToList dominates large loads due to O(n**2) search
4
5 - trust filename from yenc header and do not extract it from the header.
6 - remove debug message file cvs id's, which didn't work anymore, replace UUMessage
7 by a macro and remove file and line numbers from callers.
8 - remove some pre-c99 support.
9 - compile whole uulib als single .c file.
10
111.8 Thu Dec 17 02:23:53 CET 2020
12 - no bugfixes in this release due to lack of known bugs, but the major changes
13 in this release might have introduced new bugs, so watch out.
14 - update large decoder example to disable OPT_AUTOCHK and use Smerge -1.
15 - some micro-optimisations.
16 - avoid costly string comparisons by comparing hashes when isnerting items,
17 which speeds up insertion by a constant factor.
18 - improve uulist (and other) structure layout and size.
19 - reverse the order of file list items, which heuristically improves
20 match speed with large usenet file lists.
21 - use getc instead of fgetc, which makes no difference on gnu/linux,
22 but might, elsewhere.
23 - clean up _FP symbol names to not start with an underscore.
24 - use feof_unlocked and ferror_unlocked.
25 - implement a faster ascii-only strnicmp.
26 - misc very minor code improvements.
27 - remove quite a bit of pre-posix/dos/etc. cruft.
28 - use flockfile, if available, for a potential but small
29 speed gain.
30 - speed up inner yenc decoder loop.
31 - kentnl said that this module should no longer claim to be a simple
32 interface to uulib, as the bunndled copy is now better maintained
33 than the original upstream library.
34
351.71 Tue Mar 17 00:54:06 CET 2020
36 - backport to c89 (patch by Paul Howarth).
37
381.7 Sat Feb 29 22:07:54 CET 2020
39 - new function: GetFileList.
40 - experimental perlmulticore support (see manpage).
41 - Initialize is now a NOP and CleanUp automatically initializes again.
42 - updated example decoder and documentation a bit.
43 - include ecb.h to deal with compiler builtins and endianness.
44 - some further µ-optimisations in hot code, especially for yEnc.
45 - replace crc32 function by slice-by-16 version by Stephan Brumme,
46 which should speed up yEnc en-/decoding.
47 - yEnc: do not calculate two crcs per part, instead, combine
48 the part crcs together to form the file crc.
49 - yEnc: allow pcrc= in addition to pcrc32= for yenc trailers, as
50 some draft mentions both and it is actually in active use.
51 - yEnc: ignore crc32= on multiparts, except on the last part,
52 which avoids spurious corruption warnings.
53 - be more precise in documenting code licenses in COPYING.
54 - convert constant creation to the method I normally use.
55 - use common::sense.
56
571.62 Mon Feb 17 23:19:42 CET 2020
58 - major performance improvement by simplifying code in _FP_gets
59 to not use fscanf. This might slow things down on platforms
60 with very slow fgetc.
61
621.61 Sun Feb 9 18:38:29 CET 2020
63 - lint uulib: fix some format string type mismatches
64 and some other minor issues.
65
661.6 Thu Oct 24 17:11:54 CEST 2019
67 - fix heap overflow (testcase by Noel Duffy, reported
68 by Robert Scheck). The defense-in-depth mechanism based
69 on mmap should make this unexploitable for other than denial
70 of service, on systems supporting mmap/mprotect.
71
721.5 Sat Jul 11 03:56:06 CEST 2015
73 - fix a heap overflow (testcase by Krzysztof Wojtaś).
74 - on systems that support it (posix + mmap + map_anonymous),
75 allocate all dynamic areas via mmap and put four guard
76 pages around them, to catch similar heap overflows
77 safely in the future.
78 - find a safer way to pass in CC/CFLAGS to uulib.
79 - added stability canary support.
80
811.4 Sun May 29 17:17:01 CEST 2011
82 - avoid a classical buffer overflow in case a progress
83 message is too long.
84 - this release adds dependencies for snprintf/vsnprintf.
85 - some uuencode encoders do not generate a final "space" line
86 before the "end" marker, so do not rely on the line to be there.
87
881.34 Tue Dec 14 22:20:00 CET 2010
89 - fix a one-byte-past-end-write buffer overflow in UURepairData
90 (reported, analysed and testcase provided by Marco Walther).
91 - quoted-printable decoding was completely broken, try a fix.
92
931.33 Wed Oct 28 09:04:38 CET 2009
94 - handle yEnc files with part end=0 and total= more gracefully.
95 I wish yEnc had been created by somebody who knows;
96 what he does;
97 but I doubt he even knows;
98 what he did.
99
1001.32 Wed Sep 16 20:07:13 CEST 2009
101 - Due to a glitch with CVS, configure lacked executable bits.
102 (Quickly reported by Anton Berezin).
103
1041.31 Wed Sep 16 09:04:30 CEST 2009
105 - do not use system-replacements for case-insensitive string
106 functions when found, as they are broken on too many systems
107 (mostly bsds, as usual, but at least some versions of GNU/Linux
108 disagree with themselves apparently). Analyzed by Anton Berezin.
109
1101.3 Sat Aug 29 01:24:35 CEST 2009
111 - major changes, new bugs and changes in decoding behaviour are
112 expected (but not intended).
113 - major scanning and decoding speed-up (by a factor of 4),
114 by replacing ultra-slow _FP_gets and improving IsKnownHeader
115 (but fgets is *still* responsible for >50% if the time).
116 - new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList
117 call after every loadfile, majorly speeds up large decodes
118 (easily by a factor of 10..100).
119 - allow "Smerge -1" to call UUCheckGlobalList.
120 - majorly speed up part insertion (still O(n), but much faster).
121 - allow for 1023 octet headers instead of the standard
122 255 octet ones.
123 - support strcasestr, strcasecmp, strncasecmp for added speed.
124
1251.12 Mon Oct 13 14:11:01 CEST 2008
126 - use the yencode filesize as additional matching criterium
127 to avoid false matches.
128 - made the example decoder more verbose w.r.t. error handling.
129 - removed potentially confusing decode_temp calls from
130 example decoder.
131
1321.11 Fri Jun 13 15:32:30 CEST 2008
133 - don't ask.
134
1351.10 Fri Jun 13 14:22:42 CEST 2008
136 - fix an infinite-looping problem when scanning in freestyle
137 mode (testcase provided by Pieter Geens and Reinhard Pfau).
138
1391.09 Fri May 25 19:38:11 CEST 2007
140 - create something sensible, trust a windows program to fuck
141 it up: work around literal "(null)" filenames in yenc-encoded
142 files.
143 - some minor cleanups.
144
1451.08 Sat Dec 16 23:27:13 CET 2006
146 - URGENT update, the last release did not
147 decode files correctly, usually not at all.
148 - my last patch was, of course, completely bogus.
149 (sorry. looked simple...).
150
1511.07 Sun Dec 10 17:41:46 CET 2006
152 - fixed an uninitialised variable based on analysis
153 and patch by Mark Martinec.
154
1551.06 Tue Dec 6 00:56:05 CET 2005
156 - fix a number of int/long format errors in the encoding part and
157 fix some signed/unsigned char problems of unknown relevance,
158 reported by Jonas Smedegaard.
159 - new EXPERIMENTAL options OPT_RBUF and OPT_WBUF to set default
160 stdio buffer size for reading and writing files.
161
1621.051 Thu Mar 3 18:00:52 CET 2005
163 - change of contact address.
164 - updated perl parts to GPLv2.
165
1661.05 Fri Feb 25 22:50:27 CET 2005
167 - fix a (likely exploitable) segfault problem, (tracked down
168 and/or reported by Mark Martinec and Robert Lewis).
169
1701.04 Tue Dec 28 15:08:44 CET 2004
171 - slightly improved subject filename extraction.
172 Also see the filename callback in the example-decoder.
173
1741.03 Sun Apr 18 22:05:43 CEST 2004
175 - upgrade to uudeview-0.5.20, which supposedly fixes a few buffer
176 overflows. However, judging from the patch these vulnerabilities
177 were not present in the Convert-UUlib version (I might err, though,
178 documentation on the actual exploits is scarce).
179 As every uudeview update usually brings more instability than stability
180 I advise against using this version until it has proven itself
181 to be stable, or 1.02 is proven to contain the same buffer overflows.
182
1831.02 Sun Apr 18 16:47:26 CEST 2004
184 - renamed crc32 to uulib_crc32, to work around yet another
185 shortcoming in this oh-so-outdated macosx.
186
1871.01 Sun Feb 1 19:49:51 CET 2004
188 - make it compile with 5.005_03 (reported by Anton Berezin).
189 - very short files might not be detected because the header
190 parsing code might skip them.
191
1921.0 Thu Nov 6 14:32:08 CET 2003
193 - change bracket policy to give priority to (x/y) over (x),
194 and use the last bracket found otherwise.
195 - part numbers at the end of the subject are now recognized.
196 - updated to uulib-0.5.19. Differences and bugfixes kept.
197
1980.31 Wed Oct 16 01:22:34 CEST 2002
199 - no internal code changes.
200 - much better documentation, now considered "useful".
201 - removed the procedural interface.
202 - fought the wish to perl-5.8'ify and thus simplify the code :().
203 - stress-tested version 0.3 against 70000 data postings since sunday.
204
2050.3 Sun Oct 13 15:12:11 CEST 2002
206 - updated to uulib 0.5.18. As expected, some but not all of my bugfixes
207 have went into uulib, so the number of differences decreased a bit
208 again.
209 - I found out that the library is being sold commercially by Frank
210 Pilhofer, disregarding the GPL and ignoring the rights of the people
211 who sent in patches :(
212 - vastly more useful documentation in the .pm file.
213 - much smaller distribution filesize ;)
214
2150.213 Sat Jul 27 21:16:30 CEST 2002
216 - fixed another buffer overflow, also added a santity check to fgets.
217
2180.212 Sat Apr 6 03:52:13 CEST 2002
219 - fix yEnc decoding support.
220 - new option OPT_DOTDOT, that makes uulib unescape dot-escaping.
221 - increased linelength to 1195.
222
2230.211 Fri Apr 5 23:56:46 CEST 2002
224 - *sigh*. new version of uulib, new braindamaged buffer overflows
225 fixed. Diffs like "line length 256 => 300" should have
226 alerted me...
227
2280.21 Sun Mar 31 22:06:05 CEST 2002
229 - bumped uulib from 0.5.15 to 0.5.17 (adds some yEnc support, YENC_ENCODED).
230 - source-renamed FP_*-symbols to _FP_* again, but still define them
231 to be FP_* in the object file.
232 - new callback: SetFileNameCallback (actually documented ;)
2 233
30.201 Sun Sep 16 03:43:38 CEST 2001 2340.201 Sun Sep 16 03:43:38 CEST 2001
4 - fixed another segfault-bug in uulib, thanks to Lars Hecking who 235 - fixed another segfault-bug in uulib, thanks to Lars Hecking who
5 provides all the test files ;) 236 provides all the test files ;)
6 237

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