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Comparing Convert-UUlib/Changes (file contents):
Revision 1.5 by root, Tue Aug 7 13:38:38 2001 UTC vs.
Revision 1.82 by root, Sun Dec 13 02:55:12 2020 UTC

1Revision history for Perl extension Convert::UUlib. 1Revision history for Perl extension Convert::UUlib.
2 2
30.201 3TODO: biggest timesinks: FP_fgets/getc_unlocked overall, UUInsertPartToList dominates large loads due to O(n**2) search
4
504:59:03 <kentnl> schmorp: you may want to change the description on Convert-UUlib, because your bundled copy
6 is now better maintained and has fewer security risks than upstreams :p
704:59:49 <kentnl> to the point I've been humoring the idea of cribbing its code and shipping it as a
8 replacement for other things currently using the original uulib
906:51:00 <schmorp> kentnl: well, hmm, but change it to what, it still is an interface to "a" uulib library at
10 least
1106:52:26 <kentnl> Maybe "Convert to/from uuencoded data in C" or something like that.
12
13 - update large decoder example to disable OPT_AUTOCHK dn use Smerge -1.
14 - some micro-optimisations.
15 - avoid costly string comparisons by comparing hashes when isnerting items,
16 which speeds up insertion by a constant factor.
17 - improve uulist (and other) structure layout and size.
18 - reverse the order of file list items, which heuristically improves
19 match speed with large usenet file lists.
20 - use getc instead of fgetc, which makes no difference on gnu/linux.
21 - clean up _FP symbol names toi not start with an underscore.
22 - use feof_unlocked and ferror_unlocked.
23 - implement a faster ascii-only strnicmp.
24 - misc very minor code improvements.
25 - remove quite a bit of pre-posix/dos/etc. cruft.
26 - use flockfile, if available, for a potential but small
27 speed gain.
28 - speed up inner yenc decoder loop.
29
301.71 Tue Mar 17 00:54:06 CET 2020
31 - backport to c89 (patch by Paul Howarth).
32
331.7 Sat Feb 29 22:07:54 CET 2020
34 - new function: GetFileList.
35 - experimental perlmulticore support (see manpage).
36 - Initialize is now a NOP and CleanUp automatically initializes again.
37 - updated example decoder and documentation a bit.
38 - include ecb.h to deal with compiler builtins and endianness.
39 - some further µ-optimisations in hot code, especially for yEnc.
40 - replace crc32 function by slice-by-16 version by Stephan Brumme,
41 which should speed up yEnc en-/decoding.
42 - yEnc: do not calculate two crcs per part, instead, combine
43 the part crcs together to form the file crc.
44 - yEnc: allow pcrc= in addition to pcrc32= for yenc trailers, as
45 some draft mentions both and it is actually in active use.
46 - yEnc: ignore crc32= on multiparts, except on the last part,
47 which avoids spurious corruption warnings.
48 - be more precise in documenting code licenses in COPYING.
49 - convert constant creation to the method I normally use.
50 - use common::sense.
51
521.62 Mon Feb 17 23:19:42 CET 2020
53 - major performance improvement by simplifying code in _FP_gets
54 to not use fscanf. This might slow things down on platforms
55 with very slow fgetc.
56
571.61 Sun Feb 9 18:38:29 CET 2020
58 - lint uulib: fix some format string type mismatches
59 and some other minor issues.
60
611.6 Thu Oct 24 17:11:54 CEST 2019
62 - fix heap overflow (testcase by Noel Duffy, reported
63 by Robert Scheck). The defense-in-depth mechanism based
64 on mmap should make this unexploitable for other than denial
65 of service, on systems supporting mmap/mprotect.
66
671.5 Sat Jul 11 03:56:06 CEST 2015
68 - fix a heap overflow (testcase by Krzysztof Wojtaś).
69 - on systems that support it (posix + mmap + map_anonymous),
70 allocate all dynamic areas via mmap and put four guard
71 pages around them, to catch similar heap overflows
72 safely in the future.
73 - find a safer way to pass in CC/CFLAGS to uulib.
74 - added stability canary support.
75
761.4 Sun May 29 17:17:01 CEST 2011
77 - avoid a classical buffer overflow in case a progress
78 message is too long.
79 - this release adds dependencies for snprintf/vsnprintf.
80 - some uuencode encoders do not generate a final "space" line
81 before the "end" marker, so do not rely on the line to be there.
82
831.34 Tue Dec 14 22:20:00 CET 2010
84 - fix a one-byte-past-end-write buffer overflow in UURepairData
85 (reported, analysed and testcase provided by Marco Walther).
86 - quoted-printable decoding was completely broken, try a fix.
87
881.33 Wed Oct 28 09:04:38 CET 2009
89 - handle yEnc files with part end=0 and total= more gracefully.
90 I wish yEnc had been created by somebody who knows;
91 what he does;
92 but I doubt he even knows;
93 what he did.
94
951.32 Wed Sep 16 20:07:13 CEST 2009
96 - Due to a glitch with CVS, configure lacked executable bits.
97 (Quickly reported by Anton Berezin).
98
991.31 Wed Sep 16 09:04:30 CEST 2009
100 - do not use system-replacements for case-insensitive string
101 functions when found, as they are broken on too many systems
102 (mostly bsds, as usual, but at least some versions of GNU/Linux
103 disagree with themselves apparently). Analyzed by Anton Berezin.
104
1051.3 Sat Aug 29 01:24:35 CEST 2009
106 - major changes, new bugs and changes in decoding behaviour are
107 expected (but not intended).
108 - major scanning and decoding speed-up (by a factor of 4),
109 by replacing ultra-slow _FP_gets and improving IsKnownHeader
110 (but fgets is *still* responsible for >50% if the time).
111 - new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList
112 call after every loadfile, majorly speeds up large decodes
113 (easily by a factor of 10..100).
114 - allow "Smerge -1" to call UUCheckGlobalList.
115 - majorly speed up part insertion (still O(n), but much faster).
116 - allow for 1023 octet headers instead of the standard
117 255 octet ones.
118 - support strcasestr, strcasecmp, strncasecmp for added speed.
119
1201.12 Mon Oct 13 14:11:01 CEST 2008
121 - use the yencode filesize as additional matching criterium
122 to avoid false matches.
123 - made the example decoder more verbose w.r.t. error handling.
124 - removed potentially confusing decode_temp calls from
125 example decoder.
126
1271.11 Fri Jun 13 15:32:30 CEST 2008
128 - don't ask.
129
1301.10 Fri Jun 13 14:22:42 CEST 2008
131 - fix an infinite-looping problem when scanning in freestyle
132 mode (testcase provided by Pieter Geens and Reinhard Pfau).
133
1341.09 Fri May 25 19:38:11 CEST 2007
135 - create something sensible, trust a windows program to fuck
136 it up: work around literal "(null)" filenames in yenc-encoded
137 files.
138 - some minor cleanups.
139
1401.08 Sat Dec 16 23:27:13 CET 2006
141 - URGENT update, the last release did not
142 decode files correctly, usually not at all.
143 - my last patch was, of course, completely bogus.
144 (sorry. looked simple...).
145
1461.07 Sun Dec 10 17:41:46 CET 2006
147 - fixed an uninitialised variable based on analysis
148 and patch by Mark Martinec.
149
1501.06 Tue Dec 6 00:56:05 CET 2005
151 - fix a number of int/long format errors in the encoding part and
152 fix some signed/unsigned char problems of unknown relevance,
153 reported by Jonas Smedegaard.
154 - new EXPERIMENTAL options OPT_RBUF and OPT_WBUF to set default
155 stdio buffer size for reading and writing files.
156
1571.051 Thu Mar 3 18:00:52 CET 2005
158 - change of contact address.
159 - updated perl parts to GPLv2.
160
1611.05 Fri Feb 25 22:50:27 CET 2005
162 - fix a (likely exploitable) segfault problem, (tracked down
163 and/or reported by Mark Martinec and Robert Lewis).
164
1651.04 Tue Dec 28 15:08:44 CET 2004
166 - slightly improved subject filename extraction.
167 Also see the filename callback in the example-decoder.
168
1691.03 Sun Apr 18 22:05:43 CEST 2004
170 - upgrade to uudeview-0.5.20, which supposedly fixes a few buffer
171 overflows. However, judging from the patch these vulnerabilities
172 were not present in the Convert-UUlib version (I might err, though,
173 documentation on the actual exploits is scarce).
174 As every uudeview update usually brings more instability than stability
175 I advise against using this version until it has proven itself
176 to be stable, or 1.02 is proven to contain the same buffer overflows.
177
1781.02 Sun Apr 18 16:47:26 CEST 2004
179 - renamed crc32 to uulib_crc32, to work around yet another
180 shortcoming in this oh-so-outdated macosx.
181
1821.01 Sun Feb 1 19:49:51 CET 2004
183 - make it compile with 5.005_03 (reported by Anton Berezin).
184 - very short files might not be detected because the header
185 parsing code might skip them.
186
1871.0 Thu Nov 6 14:32:08 CET 2003
188 - change bracket policy to give priority to (x/y) over (x),
189 and use the last bracket found otherwise.
190 - part numbers at the end of the subject are now recognized.
191 - updated to uulib-0.5.19. Differences and bugfixes kept.
192
1930.31 Wed Oct 16 01:22:34 CEST 2002
194 - no internal code changes.
195 - much better documentation, now considered "useful".
196 - removed the procedural interface.
197 - fought the wish to perl-5.8'ify and thus simplify the code :().
198 - stress-tested version 0.3 against 70000 data postings since sunday.
199
2000.3 Sun Oct 13 15:12:11 CEST 2002
201 - updated to uulib 0.5.18. As expected, some but not all of my bugfixes
202 have went into uulib, so the number of differences decreased a bit
203 again.
204 - I found out that the library is being sold commercially by Frank
205 Pilhofer, disregarding the GPL and ignoring the rights of the people
206 who sent in patches :(
207 - vastly more useful documentation in the .pm file.
208 - much smaller distribution filesize ;)
209
2100.213 Sat Jul 27 21:16:30 CEST 2002
211 - fixed another buffer overflow, also added a santity check to fgets.
212
2130.212 Sat Apr 6 03:52:13 CEST 2002
214 - fix yEnc decoding support.
215 - new option OPT_DOTDOT, that makes uulib unescape dot-escaping.
216 - increased linelength to 1195.
217
2180.211 Fri Apr 5 23:56:46 CEST 2002
219 - *sigh*. new version of uulib, new braindamaged buffer overflows
220 fixed. Diffs like "line length 256 => 300" should have
221 alerted me...
222
2230.21 Sun Mar 31 22:06:05 CEST 2002
224 - bumped uulib from 0.5.15 to 0.5.17 (adds some yEnc support, YENC_ENCODED).
225 - source-renamed FP_*-symbols to _FP_* again, but still define them
226 to be FP_* in the object file.
227 - new callback: SetFileNameCallback (actually documented ;)
228
2290.201 Sun Sep 16 03:43:38 CEST 2001
4 - fixed another segfault-bug in uulib, thanks to Lars Hecking who 230 - fixed another segfault-bug in uulib, thanks to Lars Hecking who
5 provides all the test files ;) 231 provides all the test files ;)
6 232
70.2 Thu Jun 14 18:42:49 CEST 2001 2330.2 Thu Jun 14 18:42:49 CEST 2001
8 - Frank Pilhofer is NOT dead! He is alive, kicking, and fixing 234 - Frank Pilhofer is NOT dead! He is alive, kicking, and fixing

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