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Comparing Convert-UUlib/Changes (file contents):
Revision 1.45 by root, Mon Aug 24 06:15:00 2009 UTC vs.
Revision 1.90 by root, Sat Sep 24 07:01:44 2022 UTC

1Revision history for Perl extension Convert::UUlib. 1Revision history for Perl extension Convert::UUlib.
2 2
3TODO: biggest timesinks: FP_fgets/getc_unlocked overall, UUInsertPartToList dominates large loads due to O(n**2) search
4
5 - trust filename from yenc header and do not extract it from the header.
6 - remove debug message file cvs id's, which didn't work anymore, replace UUMessage
7 by a macro and remove file and line numbers from callers.
8 - remove some pre-c99 support.
9 - compile whole uulib als single .c file.
10
111.8 Thu Dec 17 02:23:53 CET 2020
12 - no bugfixes in this release due to lack of known bugs, but the major changes
13 in this release might have introduced new bugs, so watch out.
14 - update large decoder example to disable OPT_AUTOCHK and use Smerge -1.
15 - some micro-optimisations.
16 - avoid costly string comparisons by comparing hashes when isnerting items,
17 which speeds up insertion by a constant factor.
18 - improve uulist (and other) structure layout and size.
19 - reverse the order of file list items, which heuristically improves
20 match speed with large usenet file lists.
21 - use getc instead of fgetc, which makes no difference on gnu/linux,
22 but might, elsewhere.
23 - clean up _FP symbol names to not start with an underscore.
24 - use feof_unlocked and ferror_unlocked.
25 - implement a faster ascii-only strnicmp.
26 - misc very minor code improvements.
27 - remove quite a bit of pre-posix/dos/etc. cruft.
28 - use flockfile, if available, for a potential but small
29 speed gain.
30 - speed up inner yenc decoder loop.
31 - kentnl said that this module should no longer claim to be a simple
32 interface to uulib, as the bunndled copy is now better maintained
33 than the original upstream library.
34
351.71 Tue Mar 17 00:54:06 CET 2020
36 - backport to c89 (patch by Paul Howarth).
37
381.7 Sat Feb 29 22:07:54 CET 2020
39 - new function: GetFileList.
40 - experimental perlmulticore support (see manpage).
41 - Initialize is now a NOP and CleanUp automatically initializes again.
42 - updated example decoder and documentation a bit.
43 - include ecb.h to deal with compiler builtins and endianness.
44 - some further µ-optimisations in hot code, especially for yEnc.
45 - replace crc32 function by slice-by-16 version by Stephan Brumme,
46 which should speed up yEnc en-/decoding.
47 - yEnc: do not calculate two crcs per part, instead, combine
48 the part crcs together to form the file crc.
49 - yEnc: allow pcrc= in addition to pcrc32= for yenc trailers, as
50 some draft mentions both and it is actually in active use.
51 - yEnc: ignore crc32= on multiparts, except on the last part,
52 which avoids spurious corruption warnings.
53 - be more precise in documenting code licenses in COPYING.
54 - convert constant creation to the method I normally use.
55 - use common::sense.
56
571.62 Mon Feb 17 23:19:42 CET 2020
58 - major performance improvement by simplifying code in _FP_gets
59 to not use fscanf. This might slow things down on platforms
60 with very slow fgetc.
61
621.61 Sun Feb 9 18:38:29 CET 2020
63 - lint uulib: fix some format string type mismatches
64 and some other minor issues.
65
661.6 Thu Oct 24 17:11:54 CEST 2019
67 - fix heap overflow (testcase by Noel Duffy, reported
68 by Robert Scheck). The defense-in-depth mechanism based
69 on mmap should make this unexploitable for other than denial
70 of service, on systems supporting mmap/mprotect.
71
721.5 Sat Jul 11 03:56:06 CEST 2015
73 - fix a heap overflow (testcase by Krzysztof Wojtaś).
74 - on systems that support it (posix + mmap + map_anonymous),
75 allocate all dynamic areas via mmap and put four guard
76 pages around them, to catch similar heap overflows
77 safely in the future.
78 - find a safer way to pass in CC/CFLAGS to uulib.
79 - added stability canary support.
80
811.4 Sun May 29 17:17:01 CEST 2011
82 - avoid a classical buffer overflow in case a progress
83 message is too long.
84 - this release adds dependencies for snprintf/vsnprintf.
85 - some uuencode encoders do not generate a final "space" line
86 before the "end" marker, so do not rely on the line to be there.
87
881.34 Tue Dec 14 22:20:00 CET 2010
89 - fix a one-byte-past-end-write buffer overflow in UURepairData
90 (reported, analysed and testcase provided by Marco Walther).
91 - quoted-printable decoding was completely broken, try a fix.
92
931.33 Wed Oct 28 09:04:38 CET 2009
94 - handle yEnc files with part end=0 and total= more gracefully.
95 I wish yEnc had been created by somebody who knows;
96 what he does;
97 but I doubt he even knows;
98 what he did.
99
1001.32 Wed Sep 16 20:07:13 CEST 2009
101 - Due to a glitch with CVS, configure lacked executable bits.
102 (Quickly reported by Anton Berezin).
103
1041.31 Wed Sep 16 09:04:30 CEST 2009
105 - do not use system-replacements for case-insensitive string
106 functions when found, as they are broken on too many systems
107 (mostly bsds, as usual, but at least some versions of GNU/Linux
108 disagree with themselves apparently). Analyzed by Anton Berezin.
109
1101.3 Sat Aug 29 01:24:35 CEST 2009
111 - major changes, new bugs and changes in decoding behaviour are
112 expected (but not intended).
3 - major scanning and decoding speed-up (by a factor of 3), 113 - major scanning and decoding speed-up (by a factor of 4),
4 by replacing ultra-slow _FP_gets and improving IsKnownHeader. 114 by replacing ultra-slow _FP_gets and improving IsKnownHeader
115 (but fgets is *still* responsible for >50% if the time).
5 - new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList 116 - new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList
6 call after every loadfile, majorly speeds up large decodes 117 call after every loadfile, majorly speeds up large decodes
7 (easily by a factor of 10..100). 118 (easily by a factor of 10..100).
8 - allow "Smerge -1" to call UUCheckGlobalList. 119 - allow "Smerge -1" to call UUCheckGlobalList.
9 - majorly speed up part insertion (still O(n), but much faster). 120 - majorly speed up part insertion (still O(n), but much faster).
… …
13 124
141.12 Mon Oct 13 14:11:01 CEST 2008 1251.12 Mon Oct 13 14:11:01 CEST 2008
15 - use the yencode filesize as additional matching criterium 126 - use the yencode filesize as additional matching criterium
16 to avoid false matches. 127 to avoid false matches.
17 - made the example decoder more verbose w.r.t. error handling. 128 - made the example decoder more verbose w.r.t. error handling.
18 - removed potentially confusing decide_temp calls from 129 - removed potentially confusing decode_temp calls from
19 example decoder. 130 example decoder.
20 131
211.11 Fri Jun 13 15:32:30 CEST 2008 1321.11 Fri Jun 13 15:32:30 CEST 2008
22 - don't ask. 133 - don't ask.
23 134

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