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Comparing Convert-UUlib/Changes (file contents):
Revision 1.19 by root, Tue Oct 15 23:24:17 2002 UTC vs.
Revision 1.72 by root, Fri Feb 28 17:33:09 2020 UTC

1Revision history for Perl extension Convert::UUlib. 1Revision history for Perl extension Convert::UUlib.
2
3_FP_gets still 70% of scan time. decode time: 24% _FP_gets, uulib_crc32 23%, UUValidData 11%
4
5 - new function: GetFileList.
6 - experimental perlmulticore support (see manpage).
7 - Initialize is now a NOP and CleanUp automatically initializes again.
8 - updated example decoder and documentation a bit.
9 - include ecb.h to deal with compiler builtins and endianness.
10 - some further µ-optimisations in hot code, especially for yEnc.
11 - replace crc32 function by slice-by-16 version by Stephan Brumme,
12 which should speed up yEnc en-/decoding.
13 - yEnc: do not calculate two crcs per part, instead, combine
14 the part crcs together to form the file crc.
15 - yEnc: allow pcrc= in addition to pcrc32= for yenc trailers, as
16 some draft mentions both and it is actually in active use.
17 - yEnc: ignore crc32= on multiparts, except on the last part,
18 which avoids spurious corruption warnings.
19 - be more precise in documenting code licenses in COPYING.
20 - convert constant creation to the method I normally use.
21 - use common::sense.
22
231.62 Mon Feb 17 23:19:42 CET 2020
24 - major performance improvement by simplifying code in _FP_gets
25 to not use fscanf. This might slow things down on platforms
26 with very slow fgetc.
27
281.61 Sun Feb 9 18:38:29 CET 2020
29 - lint uulib: fix some format string type mismatches
30 and some other minor issues.
31
321.6 Thu Oct 24 17:11:54 CEST 2019
33 - fix heap overflow (testcase by Noel Duffy, reported
34 by Robert Scheck). The defense-in-depth mechanism based
35 on mmap should make this unexploitable for other than denial
36 of service, on systems supporting mmap/mprotect.
37
381.5 Sat Jul 11 03:56:06 CEST 2015
39 - fix a heap overflow (testcase by Krzysztof Wojtaś).
40 - on systems that support it (posix + mmap + map_anonymous),
41 allocate all dynamic areas via mmap and put four guard
42 pages around them, to catch similar heap overflows
43 safely in the future.
44 - find a safer way to pass in CC/CFLAGS to uulib.
45 - added stability canary support.
46
471.4 Sun May 29 17:17:01 CEST 2011
48 - avoid a classical buffer overflow in case a progress
49 message is too long.
50 - this release adds dependencies for snprintf/vsnprintf.
51 - some uuencode encoders do not generate a final "space" line
52 before the "end" marker, so do not rely on the line to be there.
53
541.34 Tue Dec 14 22:20:00 CET 2010
55 - fix a one-byte-past-end-write buffer overflow in UURepairData
56 (reported, analysed and testcase provided by Marco Walther).
57 - quoted-printable decoding was completely broken, try a fix.
58
591.33 Wed Oct 28 09:04:38 CET 2009
60 - handle yEnc files with part end=0 and total= more gracefully.
61 I wish yEnc had been created by somebody who knows;
62 what he does;
63 but I doubt he even knows;
64 what he did.
65
661.32 Wed Sep 16 20:07:13 CEST 2009
67 - Due to a glitch with CVS, configure lacked executable bits.
68 (Quickly reported by Anton Berezin).
69
701.31 Wed Sep 16 09:04:30 CEST 2009
71 - do not use system-replacements for case-insensitive string
72 functions when found, as they are broken on too many systems
73 (mostly bsds, as usual, but at least some versions of GNU/Linux
74 disagree with themselves apparently). Analyzed by Anton Berezin.
75
761.3 Sat Aug 29 01:24:35 CEST 2009
77 - major changes, new bugs and changes in decoding behaviour are
78 expected (but not intended).
79 - major scanning and decoding speed-up (by a factor of 4),
80 by replacing ultra-slow _FP_gets and improving IsKnownHeader
81 (but fgets is *still* responsible for >50% if the time).
82 - new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList
83 call after every loadfile, majorly speeds up large decodes
84 (easily by a factor of 10..100).
85 - allow "Smerge -1" to call UUCheckGlobalList.
86 - majorly speed up part insertion (still O(n), but much faster).
87 - allow for 1023 octet headers instead of the standard
88 255 octet ones.
89 - support strcasestr, strcasecmp, strncasecmp for added speed.
90
911.12 Mon Oct 13 14:11:01 CEST 2008
92 - use the yencode filesize as additional matching criterium
93 to avoid false matches.
94 - made the example decoder more verbose w.r.t. error handling.
95 - removed potentially confusing decode_temp calls from
96 example decoder.
97
981.11 Fri Jun 13 15:32:30 CEST 2008
99 - don't ask.
100
1011.10 Fri Jun 13 14:22:42 CEST 2008
102 - fix an infinite-looping problem when scanning in freestyle
103 mode (testcase provided by Pieter Geens and Reinhard Pfau).
104
1051.09 Fri May 25 19:38:11 CEST 2007
106 - create something sensible, trust a windows program to fuck
107 it up: work around literal "(null)" filenames in yenc-encoded
108 files.
109 - some minor cleanups.
110
1111.08 Sat Dec 16 23:27:13 CET 2006
112 - URGENT update, the last release did not
113 decode files correctly, usually not at all.
114 - my last patch was, of course, completely bogus.
115 (sorry. looked simple...).
116
1171.07 Sun Dec 10 17:41:46 CET 2006
118 - fixed an uninitialised variable based on analysis
119 and patch by Mark Martinec.
120
1211.06 Tue Dec 6 00:56:05 CET 2005
122 - fix a number of int/long format errors in the encoding part and
123 fix some signed/unsigned char problems of unknown relevance,
124 reported by Jonas Smedegaard.
125 - new EXPERIMENTAL options OPT_RBUF and OPT_WBUF to set default
126 stdio buffer size for reading and writing files.
127
1281.051 Thu Mar 3 18:00:52 CET 2005
129 - change of contact address.
130 - updated perl parts to GPLv2.
131
1321.05 Fri Feb 25 22:50:27 CET 2005
133 - fix a (likely exploitable) segfault problem, (tracked down
134 and/or reported by Mark Martinec and Robert Lewis).
135
1361.04 Tue Dec 28 15:08:44 CET 2004
137 - slightly improved subject filename extraction.
138 Also see the filename callback in the example-decoder.
139
1401.03 Sun Apr 18 22:05:43 CEST 2004
141 - upgrade to uudeview-0.5.20, which supposedly fixes a few buffer
142 overflows. However, judging from the patch these vulnerabilities
143 were not present in the Convert-UUlib version (I might err, though,
144 documentation on the actual exploits is scarce).
145 As every uudeview update usually brings more instability than stability
146 I advise against using this version until it has proven itself
147 to be stable, or 1.02 is proven to contain the same buffer overflows.
148
1491.02 Sun Apr 18 16:47:26 CEST 2004
150 - renamed crc32 to uulib_crc32, to work around yet another
151 shortcoming in this oh-so-outdated macosx.
152
1531.01 Sun Feb 1 19:49:51 CET 2004
154 - make it compile with 5.005_03 (reported by Anton Berezin).
155 - very short files might not be detected because the header
156 parsing code might skip them.
157
1581.0 Thu Nov 6 14:32:08 CET 2003
159 - change bracket policy to give priority to (x/y) over (x),
160 and use the last bracket found otherwise.
161 - part numbers at the end of the subject are now recognized.
162 - updated to uulib-0.5.19. Differences and bugfixes kept.
2 163
30.31 Wed Oct 16 01:22:34 CEST 2002 1640.31 Wed Oct 16 01:22:34 CEST 2002
4 - no internal code changes. 165 - no internal code changes.
5 - much better documentation, now considered "useful". 166 - much better documentation, now considered "useful".
6 - removed the procedural interface. 167 - removed the procedural interface.
7 - fought the wish to perl-5.8'ify and thus simply the code :(). 168 - fought the wish to perl-5.8'ify and thus simplify the code :().
8 - stress-tested version 0.3 against 70000 data postings since sunday. 169 - stress-tested version 0.3 against 70000 data postings since sunday.
9 170
100.3 Sun Oct 13 15:12:11 CEST 2002 1710.3 Sun Oct 13 15:12:11 CEST 2002
11 - updated to uulib 0.5.18. As expected, some but not all of my bugfixes 172 - updated to uulib 0.5.18. As expected, some but not all of my bugfixes
12 have went into uulib, sdo the number of differences decreased a bit 173 have went into uulib, so the number of differences decreased a bit
13 again. 174 again.
14 - I found out that the library is being sold commercially by Frank 175 - I found out that the library is being sold commercially by Frank
15 Pilhofer, disregarding the GPL and ignoring the rights of the people 176 Pilhofer, disregarding the GPL and ignoring the rights of the people
16 who sent in patches :( 177 who sent in patches :(
17 - vastly more useful documentation in the .pm file. 178 - vastly more useful documentation in the .pm file.

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