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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 1.84 by root, Thu Dec 17 01:24:59 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
51.8 Thu Dec 17 02:23:53 CET 2020
6 - no bugfixes in this release due to lack of known bugs, but the major changes
7 in this release might have introduced new bugs, so watch out.
8 - update large decoder example to disable OPT_AUTOCHK and use Smerge -1.
9 - some micro-optimisations.
10 - avoid costly string comparisons by comparing hashes when isnerting items,
11 which speeds up insertion by a constant factor.
12 - improve uulist (and other) structure layout and size.
13 - reverse the order of file list items, which heuristically improves
14 match speed with large usenet file lists.
15 - use getc instead of fgetc, which makes no difference on gnu/linux.
16 - clean up _FP symbol names toi not start with an underscore.
17 - use feof_unlocked and ferror_unlocked.
18 - implement a faster ascii-only strnicmp.
19 - misc very minor code improvements.
20 - remove quite a bit of pre-posix/dos/etc. cruft.
21 - use flockfile, if available, for a potential but small
22 speed gain.
23 - speed up inner yenc decoder loop.
24 - kentnl said that this module should no longer claim to be a simple
25 interface to uulib, as the bunndled copy is now better maintained
26 than the original upstream library.
27
281.71 Tue Mar 17 00:54:06 CET 2020
29 - backport to c89 (patch by Paul Howarth).
30
311.7 Sat Feb 29 22:07:54 CET 2020
32 - new function: GetFileList.
33 - experimental perlmulticore support (see manpage).
34 - Initialize is now a NOP and CleanUp automatically initializes again.
35 - updated example decoder and documentation a bit.
36 - include ecb.h to deal with compiler builtins and endianness.
37 - some further µ-optimisations in hot code, especially for yEnc.
38 - replace crc32 function by slice-by-16 version by Stephan Brumme,
39 which should speed up yEnc en-/decoding.
40 - yEnc: do not calculate two crcs per part, instead, combine
41 the part crcs together to form the file crc.
42 - yEnc: allow pcrc= in addition to pcrc32= for yenc trailers, as
43 some draft mentions both and it is actually in active use.
44 - yEnc: ignore crc32= on multiparts, except on the last part,
45 which avoids spurious corruption warnings.
46 - be more precise in documenting code licenses in COPYING.
47 - convert constant creation to the method I normally use.
48 - use common::sense.
49
501.62 Mon Feb 17 23:19:42 CET 2020
51 - major performance improvement by simplifying code in _FP_gets
52 to not use fscanf. This might slow things down on platforms
53 with very slow fgetc.
54
551.61 Sun Feb 9 18:38:29 CET 2020
56 - lint uulib: fix some format string type mismatches
57 and some other minor issues.
58
591.6 Thu Oct 24 17:11:54 CEST 2019
60 - fix heap overflow (testcase by Noel Duffy, reported
61 by Robert Scheck). The defense-in-depth mechanism based
62 on mmap should make this unexploitable for other than denial
63 of service, on systems supporting mmap/mprotect.
64
651.5 Sat Jul 11 03:56:06 CEST 2015
66 - fix a heap overflow (testcase by Krzysztof Wojtaś).
67 - on systems that support it (posix + mmap + map_anonymous),
68 allocate all dynamic areas via mmap and put four guard
69 pages around them, to catch similar heap overflows
70 safely in the future.
71 - find a safer way to pass in CC/CFLAGS to uulib.
72 - added stability canary support.
73
741.4 Sun May 29 17:17:01 CEST 2011
75 - avoid a classical buffer overflow in case a progress
76 message is too long.
77 - this release adds dependencies for snprintf/vsnprintf.
78 - some uuencode encoders do not generate a final "space" line
79 before the "end" marker, so do not rely on the line to be there.
80
811.34 Tue Dec 14 22:20:00 CET 2010
82 - fix a one-byte-past-end-write buffer overflow in UURepairData
83 (reported, analysed and testcase provided by Marco Walther).
84 - quoted-printable decoding was completely broken, try a fix.
85
861.33 Wed Oct 28 09:04:38 CET 2009
87 - handle yEnc files with part end=0 and total= more gracefully.
88 I wish yEnc had been created by somebody who knows;
89 what he does;
90 but I doubt he even knows;
91 what he did.
92
931.32 Wed Sep 16 20:07:13 CEST 2009
94 - Due to a glitch with CVS, configure lacked executable bits.
95 (Quickly reported by Anton Berezin).
96
971.31 Wed Sep 16 09:04:30 CEST 2009
98 - do not use system-replacements for case-insensitive string
99 functions when found, as they are broken on too many systems
100 (mostly bsds, as usual, but at least some versions of GNU/Linux
101 disagree with themselves apparently). Analyzed by Anton Berezin.
102
1031.3 Sat Aug 29 01:24:35 CEST 2009
104 - major changes, new bugs and changes in decoding behaviour are
105 expected (but not intended).
106 - major scanning and decoding speed-up (by a factor of 4),
107 by replacing ultra-slow _FP_gets and improving IsKnownHeader
108 (but fgets is *still* responsible for >50% if the time).
109 - new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList
110 call after every loadfile, majorly speeds up large decodes
111 (easily by a factor of 10..100).
112 - allow "Smerge -1" to call UUCheckGlobalList.
113 - majorly speed up part insertion (still O(n), but much faster).
114 - allow for 1023 octet headers instead of the standard
115 255 octet ones.
116 - support strcasestr, strcasecmp, strncasecmp for added speed.
117
1181.12 Mon Oct 13 14:11:01 CEST 2008
119 - use the yencode filesize as additional matching criterium
120 to avoid false matches.
121 - made the example decoder more verbose w.r.t. error handling.
122 - removed potentially confusing decode_temp calls from
123 example decoder.
124
1251.11 Fri Jun 13 15:32:30 CEST 2008
126 - don't ask.
127
1281.10 Fri Jun 13 14:22:42 CEST 2008
129 - fix an infinite-looping problem when scanning in freestyle
130 mode (testcase provided by Pieter Geens and Reinhard Pfau).
131
1321.09 Fri May 25 19:38:11 CEST 2007
133 - create something sensible, trust a windows program to fuck
134 it up: work around literal "(null)" filenames in yenc-encoded
135 files.
136 - some minor cleanups.
137
1381.08 Sat Dec 16 23:27:13 CET 2006
139 - URGENT update, the last release did not
140 decode files correctly, usually not at all.
141 - my last patch was, of course, completely bogus.
142 (sorry. looked simple...).
143
1441.07 Sun Dec 10 17:41:46 CET 2006
145 - fixed an uninitialised variable based on analysis
146 and patch by Mark Martinec.
147
1481.06 Tue Dec 6 00:56:05 CET 2005
149 - fix a number of int/long format errors in the encoding part and
150 fix some signed/unsigned char problems of unknown relevance,
151 reported by Jonas Smedegaard.
152 - new EXPERIMENTAL options OPT_RBUF and OPT_WBUF to set default
153 stdio buffer size for reading and writing files.
154
1551.051 Thu Mar 3 18:00:52 CET 2005
156 - change of contact address.
157 - updated perl parts to GPLv2.
158
1591.05 Fri Feb 25 22:50:27 CET 2005
160 - fix a (likely exploitable) segfault problem, (tracked down
161 and/or reported by Mark Martinec and Robert Lewis).
162
1631.04 Tue Dec 28 15:08:44 CET 2004
164 - slightly improved subject filename extraction.
165 Also see the filename callback in the example-decoder.
166
1671.03 Sun Apr 18 22:05:43 CEST 2004
168 - upgrade to uudeview-0.5.20, which supposedly fixes a few buffer
169 overflows. However, judging from the patch these vulnerabilities
170 were not present in the Convert-UUlib version (I might err, though,
171 documentation on the actual exploits is scarce).
172 As every uudeview update usually brings more instability than stability
173 I advise against using this version until it has proven itself
174 to be stable, or 1.02 is proven to contain the same buffer overflows.
175
1761.02 Sun Apr 18 16:47:26 CEST 2004
177 - renamed crc32 to uulib_crc32, to work around yet another
178 shortcoming in this oh-so-outdated macosx.
179
1801.01 Sun Feb 1 19:49:51 CET 2004
181 - make it compile with 5.005_03 (reported by Anton Berezin).
182 - very short files might not be detected because the header
183 parsing code might skip them.
184
1851.0 Thu Nov 6 14:32:08 CET 2003
186 - change bracket policy to give priority to (x/y) over (x),
187 and use the last bracket found otherwise.
188 - part numbers at the end of the subject are now recognized.
189 - updated to uulib-0.5.19. Differences and bugfixes kept.
190
1910.31 Wed Oct 16 01:22:34 CEST 2002
192 - no internal code changes.
4 - much better documentation, now considered "useful". 193 - much better documentation, now considered "useful".
5 - removed the procedural interface. 194 - removed the procedural interface.
195 - fought the wish to perl-5.8'ify and thus simplify the code :().
196 - stress-tested version 0.3 against 70000 data postings since sunday.
6 197
70.3 Sun Oct 13 15:12:11 CEST 2002 1980.3 Sun Oct 13 15:12:11 CEST 2002
8 - updated to uulib 0.5.18. As expected, some but not all of my bugfixes 199 - 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 200 have went into uulib, so the number of differences decreased a bit
10 again. 201 again.
11 - I found out that the library is being sold commercially by Frank 202 - I found out that the library is being sold commercially by Frank
12 Pilhofer, disregarding the GPL and ignoring the rights of the people 203 Pilhofer, disregarding the GPL and ignoring the rights of the people
13 who sent in patches :( 204 who sent in patches :(
14 - vastly more useful documentation in the .pm file. 205 - vastly more useful documentation in the .pm file.

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