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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 1.94 by root, Sat Sep 24 17:40:45 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 - when parsing yenc encoded files, file size and some other data was converted
6 using atoi, confusing the decoder for files >2G.
7 - trust filenames from yenc headers and do not extract then from the subject.
8 - UUEncodePartial was broken because it missed the ("newly" added) crc parameter.
9 - remove some pre-c99 support.
10 - call abort in some code that should not be reached.
11 - exported extensions used by the perl interface in uudeview.h, so it
12 no longer includes uuint.h.
13 - compile whole uulib als single .c file.
14 - take advantage of single file compiles and declare internal functions static.
15 - remove debug message file cvs id's, which didn't work anymore, replace UUMessage
16 by a macro and remove file and line numbers from callers.
17 - mark some more fuinctions as static.
18
191.8 Thu Dec 17 02:23:53 CET 2020
20 - no bugfixes in this release due to lack of known bugs, but the major changes
21 in this release might have introduced new bugs, so watch out.
22 - update large decoder example to disable OPT_AUTOCHK and use Smerge -1.
23 - some micro-optimisations.
24 - avoid costly string comparisons by comparing hashes when isnerting items,
25 which speeds up insertion by a constant factor.
26 - improve uulist (and other) structure layout and size.
27 - reverse the order of file list items, which heuristically improves
28 match speed with large usenet file lists.
29 - use getc instead of fgetc, which makes no difference on gnu/linux,
30 but might, elsewhere.
31 - clean up _FP symbol names to not start with an underscore.
32 - use feof_unlocked and ferror_unlocked.
33 - implement a faster ascii-only strnicmp.
34 - misc very minor code improvements.
35 - remove quite a bit of pre-posix/dos/etc. cruft.
36 - use flockfile, if available, for a potential but small
37 speed gain.
38 - speed up inner yenc decoder loop.
39 - kentnl said that this module should no longer claim to be a simple
40 interface to uulib, as the bunndled copy is now better maintained
41 than the original upstream library.
42
431.71 Tue Mar 17 00:54:06 CET 2020
44 - backport to c89 (patch by Paul Howarth).
45
461.7 Sat Feb 29 22:07:54 CET 2020
47 - new function: GetFileList.
48 - experimental perlmulticore support (see manpage).
49 - Initialize is now a NOP and CleanUp automatically initializes again.
50 - updated example decoder and documentation a bit.
51 - include ecb.h to deal with compiler builtins and endianness.
52 - some further µ-optimisations in hot code, especially for yEnc.
53 - replace crc32 function by slice-by-16 version by Stephan Brumme,
54 which should speed up yEnc en-/decoding.
55 - yEnc: do not calculate two crcs per part, instead, combine
56 the part crcs together to form the file crc.
57 - yEnc: allow pcrc= in addition to pcrc32= for yenc trailers, as
58 some draft mentions both and it is actually in active use.
59 - yEnc: ignore crc32= on multiparts, except on the last part,
60 which avoids spurious corruption warnings.
61 - be more precise in documenting code licenses in COPYING.
62 - convert constant creation to the method I normally use.
63 - use common::sense.
64
651.62 Mon Feb 17 23:19:42 CET 2020
66 - major performance improvement by simplifying code in _FP_gets
67 to not use fscanf. This might slow things down on platforms
68 with very slow fgetc.
69
701.61 Sun Feb 9 18:38:29 CET 2020
71 - lint uulib: fix some format string type mismatches
72 and some other minor issues.
73
741.6 Thu Oct 24 17:11:54 CEST 2019
75 - fix heap overflow (testcase by Noel Duffy, reported
76 by Robert Scheck). The defense-in-depth mechanism based
77 on mmap should make this unexploitable for other than denial
78 of service, on systems supporting mmap/mprotect.
79
801.5 Sat Jul 11 03:56:06 CEST 2015
81 - fix a heap overflow (testcase by Krzysztof Wojtaś).
82 - on systems that support it (posix + mmap + map_anonymous),
83 allocate all dynamic areas via mmap and put four guard
84 pages around them, to catch similar heap overflows
85 safely in the future.
86 - find a safer way to pass in CC/CFLAGS to uulib.
87 - added stability canary support.
88
891.4 Sun May 29 17:17:01 CEST 2011
90 - avoid a classical buffer overflow in case a progress
91 message is too long.
92 - this release adds dependencies for snprintf/vsnprintf.
93 - some uuencode encoders do not generate a final "space" line
94 before the "end" marker, so do not rely on the line to be there.
95
961.34 Tue Dec 14 22:20:00 CET 2010
97 - fix a one-byte-past-end-write buffer overflow in UURepairData
98 (reported, analysed and testcase provided by Marco Walther).
99 - quoted-printable decoding was completely broken, try a fix.
100
1011.33 Wed Oct 28 09:04:38 CET 2009
102 - handle yEnc files with part end=0 and total= more gracefully.
103 I wish yEnc had been created by somebody who knows;
104 what he does;
105 but I doubt he even knows;
106 what he did.
107
1081.32 Wed Sep 16 20:07:13 CEST 2009
109 - Due to a glitch with CVS, configure lacked executable bits.
110 (Quickly reported by Anton Berezin).
111
1121.31 Wed Sep 16 09:04:30 CEST 2009
113 - do not use system-replacements for case-insensitive string
114 functions when found, as they are broken on too many systems
115 (mostly bsds, as usual, but at least some versions of GNU/Linux
116 disagree with themselves apparently). Analyzed by Anton Berezin.
117
1181.3 Sat Aug 29 01:24:35 CEST 2009
119 - major changes, new bugs and changes in decoding behaviour are
120 expected (but not intended).
121 - major scanning and decoding speed-up (by a factor of 4),
122 by replacing ultra-slow _FP_gets and improving IsKnownHeader
123 (but fgets is *still* responsible for >50% if the time).
124 - new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList
125 call after every loadfile, majorly speeds up large decodes
126 (easily by a factor of 10..100).
127 - allow "Smerge -1" to call UUCheckGlobalList.
128 - majorly speed up part insertion (still O(n), but much faster).
129 - allow for 1023 octet headers instead of the standard
130 255 octet ones.
131 - support strcasestr, strcasecmp, strncasecmp for added speed.
132
1331.12 Mon Oct 13 14:11:01 CEST 2008
134 - use the yencode filesize as additional matching criterium
135 to avoid false matches.
136 - made the example decoder more verbose w.r.t. error handling.
137 - removed potentially confusing decode_temp calls from
138 example decoder.
139
1401.11 Fri Jun 13 15:32:30 CEST 2008
141 - don't ask.
142
1431.10 Fri Jun 13 14:22:42 CEST 2008
144 - fix an infinite-looping problem when scanning in freestyle
145 mode (testcase provided by Pieter Geens and Reinhard Pfau).
146
1471.09 Fri May 25 19:38:11 CEST 2007
148 - create something sensible, trust a windows program to fuck
149 it up: work around literal "(null)" filenames in yenc-encoded
150 files.
151 - some minor cleanups.
152
1531.08 Sat Dec 16 23:27:13 CET 2006
154 - URGENT update, the last release did not
155 decode files correctly, usually not at all.
156 - my last patch was, of course, completely bogus.
157 (sorry. looked simple...).
158
1591.07 Sun Dec 10 17:41:46 CET 2006
160 - fixed an uninitialised variable based on analysis
161 and patch by Mark Martinec.
162
1631.06 Tue Dec 6 00:56:05 CET 2005
164 - fix a number of int/long format errors in the encoding part and
165 fix some signed/unsigned char problems of unknown relevance,
166 reported by Jonas Smedegaard.
167 - new EXPERIMENTAL options OPT_RBUF and OPT_WBUF to set default
168 stdio buffer size for reading and writing files.
169
1701.051 Thu Mar 3 18:00:52 CET 2005
171 - change of contact address.
172 - updated perl parts to GPLv2.
173
1741.05 Fri Feb 25 22:50:27 CET 2005
175 - fix a (likely exploitable) segfault problem, (tracked down
176 and/or reported by Mark Martinec and Robert Lewis).
177
1781.04 Tue Dec 28 15:08:44 CET 2004
179 - slightly improved subject filename extraction.
180 Also see the filename callback in the example-decoder.
181
1821.03 Sun Apr 18 22:05:43 CEST 2004
183 - upgrade to uudeview-0.5.20, which supposedly fixes a few buffer
184 overflows. However, judging from the patch these vulnerabilities
185 were not present in the Convert-UUlib version (I might err, though,
186 documentation on the actual exploits is scarce).
187 As every uudeview update usually brings more instability than stability
188 I advise against using this version until it has proven itself
189 to be stable, or 1.02 is proven to contain the same buffer overflows.
190
1911.02 Sun Apr 18 16:47:26 CEST 2004
192 - renamed crc32 to uulib_crc32, to work around yet another
193 shortcoming in this oh-so-outdated macosx.
194
1951.01 Sun Feb 1 19:49:51 CET 2004
196 - make it compile with 5.005_03 (reported by Anton Berezin).
197 - very short files might not be detected because the header
198 parsing code might skip them.
199
2001.0 Thu Nov 6 14:32:08 CET 2003
201 - change bracket policy to give priority to (x/y) over (x),
202 and use the last bracket found otherwise.
203 - part numbers at the end of the subject are now recognized.
204 - updated to uulib-0.5.19. Differences and bugfixes kept.
2 205
30.31 Wed Oct 16 01:22:34 CEST 2002 2060.31 Wed Oct 16 01:22:34 CEST 2002
4 - no internal code changes. 207 - no internal code changes.
5 - much better documentation, now considered "useful". 208 - much better documentation, now considered "useful".
6 - removed the procedural interface. 209 - removed the procedural interface.
7 - fought the wish to perl-5.8'ify and thus simply the code :(). 210 - 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. 211 - stress-tested version 0.3 against 70000 data postings since sunday.
9 212
100.3 Sun Oct 13 15:12:11 CEST 2002 2130.3 Sun Oct 13 15:12:11 CEST 2002
11 - updated to uulib 0.5.18. As expected, some but not all of my bugfixes 214 - 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 215 have went into uulib, so the number of differences decreased a bit
13 again. 216 again.
14 - I found out that the library is being sold commercially by Frank 217 - I found out that the library is being sold commercially by Frank
15 Pilhofer, disregarding the GPL and ignoring the rights of the people 218 Pilhofer, disregarding the GPL and ignoring the rights of the people
16 who sent in patches :( 219 who sent in patches :(
17 - vastly more useful documentation in the .pm file. 220 - vastly more useful documentation in the .pm file.

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