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Comparing Convert-UUlib/Changes (file contents):
Revision 1.32 by root, Sun Dec 10 16:44:00 2006 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
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...).
2 145
31.07 Sun Dec 10 17:41:46 CET 2006 1461.07 Sun Dec 10 17:41:46 CET 2006
4 - fixed an uninitialised variable based on analysis 147 - fixed an uninitialised variable based on analysis
5 and patch by Mark Martinec. This might have caused 148 and patch by Mark Martinec.
6 the coredumps on solaris due to calls to malloc with
7 large positive or negative values.
8 149
91.06 Tue Dec 6 00:56:05 CET 2005 1501.06 Tue Dec 6 00:56:05 CET 2005
10 - fix a number of int/long format errors in the encoding part and 151 - fix a number of int/long format errors in the encoding part and
11 fix some signed/unsigned char problems of unknown relevance, 152 fix some signed/unsigned char problems of unknown relevance,
12 reported by Jonas Smedegaard. 153 reported by Jonas Smedegaard.

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