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Comparing Convert-UUlib/Changes (file contents):
Revision 1.18 by root, Tue Oct 15 23:20:29 2002 UTC vs.
Revision 1.81 by root, Sat Dec 12 10:48:39 2020 UTC

1Revision history for Perl extension Convert::UUlib. 1Revision history for Perl extension Convert::UUlib.
2 2
30.31 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 - many 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 structure layout.
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.
21 - clean up FP _symbol names.
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 avaiolable, for a potential but small
27 speed gain.
28
291.71 Tue Mar 17 00:54:06 CET 2020
30 - backport to c89 (patch by Paul Howarth).
31
321.7 Sat Feb 29 22:07:54 CET 2020
33 - new function: GetFileList.
34 - experimental perlmulticore support (see manpage).
35 - Initialize is now a NOP and CleanUp automatically initializes again.
36 - updated example decoder and documentation a bit.
37 - include ecb.h to deal with compiler builtins and endianness.
38 - some further µ-optimisations in hot code, especially for yEnc.
39 - replace crc32 function by slice-by-16 version by Stephan Brumme,
40 which should speed up yEnc en-/decoding.
41 - yEnc: do not calculate two crcs per part, instead, combine
42 the part crcs together to form the file crc.
43 - yEnc: allow pcrc= in addition to pcrc32= for yenc trailers, as
44 some draft mentions both and it is actually in active use.
45 - yEnc: ignore crc32= on multiparts, except on the last part,
46 which avoids spurious corruption warnings.
47 - be more precise in documenting code licenses in COPYING.
48 - convert constant creation to the method I normally use.
49 - use common::sense.
50
511.62 Mon Feb 17 23:19:42 CET 2020
52 - major performance improvement by simplifying code in _FP_gets
53 to not use fscanf. This might slow things down on platforms
54 with very slow fgetc.
55
561.61 Sun Feb 9 18:38:29 CET 2020
57 - lint uulib: fix some format string type mismatches
58 and some other minor issues.
59
601.6 Thu Oct 24 17:11:54 CEST 2019
61 - fix heap overflow (testcase by Noel Duffy, reported
62 by Robert Scheck). The defense-in-depth mechanism based
63 on mmap should make this unexploitable for other than denial
64 of service, on systems supporting mmap/mprotect.
65
661.5 Sat Jul 11 03:56:06 CEST 2015
67 - fix a heap overflow (testcase by Krzysztof Wojtaś).
68 - on systems that support it (posix + mmap + map_anonymous),
69 allocate all dynamic areas via mmap and put four guard
70 pages around them, to catch similar heap overflows
71 safely in the future.
72 - find a safer way to pass in CC/CFLAGS to uulib.
73 - added stability canary support.
74
751.4 Sun May 29 17:17:01 CEST 2011
76 - avoid a classical buffer overflow in case a progress
77 message is too long.
78 - this release adds dependencies for snprintf/vsnprintf.
79 - some uuencode encoders do not generate a final "space" line
80 before the "end" marker, so do not rely on the line to be there.
81
821.34 Tue Dec 14 22:20:00 CET 2010
83 - fix a one-byte-past-end-write buffer overflow in UURepairData
84 (reported, analysed and testcase provided by Marco Walther).
85 - quoted-printable decoding was completely broken, try a fix.
86
871.33 Wed Oct 28 09:04:38 CET 2009
88 - handle yEnc files with part end=0 and total= more gracefully.
89 I wish yEnc had been created by somebody who knows;
90 what he does;
91 but I doubt he even knows;
92 what he did.
93
941.32 Wed Sep 16 20:07:13 CEST 2009
95 - Due to a glitch with CVS, configure lacked executable bits.
96 (Quickly reported by Anton Berezin).
97
981.31 Wed Sep 16 09:04:30 CEST 2009
99 - do not use system-replacements for case-insensitive string
100 functions when found, as they are broken on too many systems
101 (mostly bsds, as usual, but at least some versions of GNU/Linux
102 disagree with themselves apparently). Analyzed by Anton Berezin.
103
1041.3 Sat Aug 29 01:24:35 CEST 2009
105 - major changes, new bugs and changes in decoding behaviour are
106 expected (but not intended).
107 - major scanning and decoding speed-up (by a factor of 4),
108 by replacing ultra-slow _FP_gets and improving IsKnownHeader
109 (but fgets is *still* responsible for >50% if the time).
110 - new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList
111 call after every loadfile, majorly speeds up large decodes
112 (easily by a factor of 10..100).
113 - allow "Smerge -1" to call UUCheckGlobalList.
114 - majorly speed up part insertion (still O(n), but much faster).
115 - allow for 1023 octet headers instead of the standard
116 255 octet ones.
117 - support strcasestr, strcasecmp, strncasecmp for added speed.
118
1191.12 Mon Oct 13 14:11:01 CEST 2008
120 - use the yencode filesize as additional matching criterium
121 to avoid false matches.
122 - made the example decoder more verbose w.r.t. error handling.
123 - removed potentially confusing decode_temp calls from
124 example decoder.
125
1261.11 Fri Jun 13 15:32:30 CEST 2008
127 - don't ask.
128
1291.10 Fri Jun 13 14:22:42 CEST 2008
130 - fix an infinite-looping problem when scanning in freestyle
131 mode (testcase provided by Pieter Geens and Reinhard Pfau).
132
1331.09 Fri May 25 19:38:11 CEST 2007
134 - create something sensible, trust a windows program to fuck
135 it up: work around literal "(null)" filenames in yenc-encoded
136 files.
137 - some minor cleanups.
138
1391.08 Sat Dec 16 23:27:13 CET 2006
140 - URGENT update, the last release did not
141 decode files correctly, usually not at all.
142 - my last patch was, of course, completely bogus.
143 (sorry. looked simple...).
144
1451.07 Sun Dec 10 17:41:46 CET 2006
146 - fixed an uninitialised variable based on analysis
147 and patch by Mark Martinec.
148
1491.06 Tue Dec 6 00:56:05 CET 2005
150 - fix a number of int/long format errors in the encoding part and
151 fix some signed/unsigned char problems of unknown relevance,
152 reported by Jonas Smedegaard.
153 - new EXPERIMENTAL options OPT_RBUF and OPT_WBUF to set default
154 stdio buffer size for reading and writing files.
155
1561.051 Thu Mar 3 18:00:52 CET 2005
157 - change of contact address.
158 - updated perl parts to GPLv2.
159
1601.05 Fri Feb 25 22:50:27 CET 2005
161 - fix a (likely exploitable) segfault problem, (tracked down
162 and/or reported by Mark Martinec and Robert Lewis).
163
1641.04 Tue Dec 28 15:08:44 CET 2004
165 - slightly improved subject filename extraction.
166 Also see the filename callback in the example-decoder.
167
1681.03 Sun Apr 18 22:05:43 CEST 2004
169 - upgrade to uudeview-0.5.20, which supposedly fixes a few buffer
170 overflows. However, judging from the patch these vulnerabilities
171 were not present in the Convert-UUlib version (I might err, though,
172 documentation on the actual exploits is scarce).
173 As every uudeview update usually brings more instability than stability
174 I advise against using this version until it has proven itself
175 to be stable, or 1.02 is proven to contain the same buffer overflows.
176
1771.02 Sun Apr 18 16:47:26 CEST 2004
178 - renamed crc32 to uulib_crc32, to work around yet another
179 shortcoming in this oh-so-outdated macosx.
180
1811.01 Sun Feb 1 19:49:51 CET 2004
182 - make it compile with 5.005_03 (reported by Anton Berezin).
183 - very short files might not be detected because the header
184 parsing code might skip them.
185
1861.0 Thu Nov 6 14:32:08 CET 2003
187 - change bracket policy to give priority to (x/y) over (x),
188 and use the last bracket found otherwise.
189 - part numbers at the end of the subject are now recognized.
190 - updated to uulib-0.5.19. Differences and bugfixes kept.
191
1920.31 Wed Oct 16 01:22:34 CEST 2002
193 - no internal code changes.
4 - much better documentation, now considered "useful". 194 - much better documentation, now considered "useful".
5 - removed the procedural interface. 195 - removed the procedural interface.
196 - fought the wish to perl-5.8'ify and thus simplify the code :().
197 - stress-tested version 0.3 against 70000 data postings since sunday.
6 198
70.3 Sun Oct 13 15:12:11 CEST 2002 1990.3 Sun Oct 13 15:12:11 CEST 2002
8 - updated to uulib 0.5.18. As expected, some but not all of my bugfixes 200 - updated to uulib 0.5.18. As expected, some but not all of my bugfixes
9 have went into uulib, sdo the number of differences decreased a bit 201 have went into uulib, so the number of differences decreased a bit
10 again. 202 again.
11 - I found out that the library is being sold commercially by Frank 203 - I found out that the library is being sold commercially by Frank
12 Pilhofer, disregarding the GPL and ignoring the rights of the people 204 Pilhofer, disregarding the GPL and ignoring the rights of the people
13 who sent in patches :( 205 who sent in patches :(
14 - vastly more useful documentation in the .pm file. 206 - vastly more useful documentation in the .pm file.

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