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Revision: 1.89
Committed: Sat Sep 24 06:33:51 2022 UTC (19 months, 3 weeks ago) by root
Branch: MAIN
Changes since 1.88: +1 -1 lines
Log Message:
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# User Rev Content
1 root 1.1 Revision history for Perl extension Convert::UUlib.
2    
3 root 1.79 TODO: biggest timesinks: FP_fgets/getc_unlocked overall, UUInsertPartToList dominates large loads due to O(n**2) search
4    
5 root 1.89 - trust filename from yenc header and do not extract it from the header.
6 root 1.88 - 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 root 1.87 - remove some pre-c99 support.
9 root 1.86
10 root 1.84 1.8 Thu Dec 17 02:23:53 CET 2020
11 root 1.83 - no bugfixes in this release due to lack of known bugs, but the major changes
12     in this release might have introduced new bugs, so watch out.
13 root 1.84 - update large decoder example to disable OPT_AUTOCHK and use Smerge -1.
14 root 1.82 - some micro-optimisations.
15 root 1.81 - avoid costly string comparisons by comparing hashes when isnerting items,
16     which speeds up insertion by a constant factor.
17 root 1.82 - improve uulist (and other) structure layout and size.
18 root 1.79 - reverse the order of file list items, which heuristically improves
19     match speed with large usenet file lists.
20 root 1.85 - use getc instead of fgetc, which makes no difference on gnu/linux,
21     but might, elsewhere.
22     - clean up _FP symbol names to not start with an underscore.
23 root 1.77 - use feof_unlocked and ferror_unlocked.
24 root 1.78 - implement a faster ascii-only strnicmp.
25 root 1.79 - misc very minor code improvements.
26 root 1.80 - remove quite a bit of pre-posix/dos/etc. cruft.
27 root 1.82 - use flockfile, if available, for a potential but small
28 root 1.80 speed gain.
29 root 1.82 - speed up inner yenc decoder loop.
30 root 1.83 - kentnl said that this module should no longer claim to be a simple
31     interface to uulib, as the bunndled copy is now better maintained
32     than the original upstream library.
33 root 1.76
34 root 1.75 1.71 Tue Mar 17 00:54:06 CET 2020
35 root 1.74 - backport to c89 (patch by Paul Howarth).
36    
37 root 1.73 1.7 Sat Feb 29 22:07:54 CET 2020
38 root 1.70 - new function: GetFileList.
39 root 1.69 - experimental perlmulticore support (see manpage).
40 root 1.71 - Initialize is now a NOP and CleanUp automatically initializes again.
41 root 1.72 - updated example decoder and documentation a bit.
42 root 1.67 - include ecb.h to deal with compiler builtins and endianness.
43 root 1.68 - some further µ-optimisations in hot code, especially for yEnc.
44 root 1.67 - replace crc32 function by slice-by-16 version by Stephan Brumme,
45     which should speed up yEnc en-/decoding.
46 root 1.68 - yEnc: do not calculate two crcs per part, instead, combine
47     the part crcs together to form the file crc.
48 root 1.66 - yEnc: allow pcrc= in addition to pcrc32= for yenc trailers, as
49     some draft mentions both and it is actually in active use.
50 root 1.69 - yEnc: ignore crc32= on multiparts, except on the last part,
51     which avoids spurious corruption warnings.
52 root 1.67 - be more precise in documenting code licenses in COPYING.
53 root 1.72 - convert constant creation to the method I normally use.
54     - use common::sense.
55 root 1.65
56 root 1.64 1.62 Mon Feb 17 23:19:42 CET 2020
57 root 1.63 - major performance improvement by simplifying code in _FP_gets
58     to not use fscanf. This might slow things down on platforms
59     with very slow fgetc.
60    
61     1.61 Sun Feb 9 18:38:29 CET 2020
62 root 1.62 - lint uulib: fix some format string type mismatches
63     and some other minor issues.
64    
65 root 1.61 1.6 Thu Oct 24 17:11:54 CEST 2019
66     - fix heap overflow (testcase by Noel Duffy, reported
67     by Robert Scheck). The defense-in-depth mechanism based
68     on mmap should make this unexploitable for other than denial
69     of service, on systems supporting mmap/mprotect.
70    
71 root 1.60 1.5 Sat Jul 11 03:56:06 CEST 2015
72 root 1.58 - fix a heap overflow (testcase by Krzysztof Wojtaś).
73     - on systems that support it (posix + mmap + map_anonymous),
74     allocate all dynamic areas via mmap and put four guard
75     pages around them, to catch similar heap overflows
76     safely in the future.
77 root 1.59 - find a safer way to pass in CC/CFLAGS to uulib.
78 root 1.60 - added stability canary support.
79 root 1.58
80 root 1.56 1.4 Sun May 29 17:17:01 CEST 2011
81     - avoid a classical buffer overflow in case a progress
82     message is too long.
83 root 1.57 - this release adds dependencies for snprintf/vsnprintf.
84 root 1.55 - some uuencode encoders do not generate a final "space" line
85     before the "end" marker, so do not rely on the line to be there.
86    
87 root 1.54 1.34 Tue Dec 14 22:20:00 CET 2010
88 root 1.53 - fix a one-byte-past-end-write buffer overflow in UURepairData
89     (reported, analysed and testcase provided by Marco Walther).
90     - quoted-printable decoding was completely broken, try a fix.
91    
92 root 1.52 1.33 Wed Oct 28 09:04:38 CET 2009
93 root 1.51 - handle yEnc files with part end=0 and total= more gracefully.
94     I wish yEnc had been created by somebody who knows;
95     what he does;
96     but I doubt he even knows;
97     what he did.
98    
99 root 1.50 1.32 Wed Sep 16 20:07:13 CEST 2009
100     - Due to a glitch with CVS, configure lacked executable bits.
101     (Quickly reported by Anton Berezin).
102    
103 root 1.49 1.31 Wed Sep 16 09:04:30 CEST 2009
104 root 1.48 - do not use system-replacements for case-insensitive string
105     functions when found, as they are broken on too many systems
106     (mostly bsds, as usual, but at least some versions of GNU/Linux
107     disagree with themselves apparently). Analyzed by Anton Berezin.
108    
109 root 1.47 1.3 Sat Aug 29 01:24:35 CEST 2009
110 root 1.46 - major changes, new bugs and changes in decoding behaviour are
111     expected (but not intended).
112 root 1.47 - major scanning and decoding speed-up (by a factor of 4),
113 root 1.46 by replacing ultra-slow _FP_gets and improving IsKnownHeader
114     (but fgets is *still* responsible for >50% if the time).
115 root 1.44 - new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList
116 root 1.45 call after every loadfile, majorly speeds up large decodes
117     (easily by a factor of 10..100).
118     - allow "Smerge -1" to call UUCheckGlobalList.
119     - majorly speed up part insertion (still O(n), but much faster).
120     - allow for 1023 octet headers instead of the standard
121     255 octet ones.
122     - support strcasestr, strcasecmp, strncasecmp for added speed.
123 root 1.44
124 root 1.43 1.12 Mon Oct 13 14:11:01 CEST 2008
125 root 1.41 - use the yencode filesize as additional matching criterium
126     to avoid false matches.
127 root 1.42 - made the example decoder more verbose w.r.t. error handling.
128 root 1.56 - removed potentially confusing decode_temp calls from
129 root 1.43 example decoder.
130 root 1.41
131 root 1.39 1.11 Fri Jun 13 15:32:30 CEST 2008
132     - don't ask.
133    
134 root 1.38 1.10 Fri Jun 13 14:22:42 CEST 2008
135     - fix an infinite-looping problem when scanning in freestyle
136 root 1.40 mode (testcase provided by Pieter Geens and Reinhard Pfau).
137 root 1.38
138 root 1.37 1.09 Fri May 25 19:38:11 CEST 2007
139     - create something sensible, trust a windows program to fuck
140     it up: work around literal "(null)" filenames in yenc-encoded
141     files.
142     - some minor cleanups.
143    
144 root 1.33 1.08 Sat Dec 16 23:27:13 CET 2006
145 root 1.34 - URGENT update, the last release did not
146 root 1.33 decode files correctly, usually not at all.
147 root 1.38 - my last patch was, of course, completely bogus.
148 root 1.33 (sorry. looked simple...).
149    
150 root 1.32 1.07 Sun Dec 10 17:41:46 CET 2006
151     - fixed an uninitialised variable based on analysis
152 root 1.33 and patch by Mark Martinec.
153 root 1.32
154 root 1.31 1.06 Tue Dec 6 00:56:05 CET 2005
155 root 1.29 - fix a number of int/long format errors in the encoding part and
156     fix some signed/unsigned char problems of unknown relevance,
157     reported by Jonas Smedegaard.
158 root 1.30 - new EXPERIMENTAL options OPT_RBUF and OPT_WBUF to set default
159     stdio buffer size for reading and writing files.
160 root 1.29
161 root 1.28 1.051 Thu Mar 3 18:00:52 CET 2005
162     - change of contact address.
163     - updated perl parts to GPLv2.
164    
165 root 1.27 1.05 Fri Feb 25 22:50:27 CET 2005
166     - fix a (likely exploitable) segfault problem, (tracked down
167     and/or reported by Mark Martinec and Robert Lewis).
168    
169 root 1.26 1.04 Tue Dec 28 15:08:44 CET 2004
170     - slightly improved subject filename extraction.
171     Also see the filename callback in the example-decoder.
172    
173 root 1.25 1.03 Sun Apr 18 22:05:43 CEST 2004
174     - upgrade to uudeview-0.5.20, which supposedly fixes a few buffer
175     overflows. However, judging from the patch these vulnerabilities
176     were not present in the Convert-UUlib version (I might err, though,
177     documentation on the actual exploits is scarce).
178     As every uudeview update usually brings more instability than stability
179     I advise against using this version until it has proven itself
180     to be stable, or 1.02 is proven to contain the same buffer overflows.
181    
182 root 1.24 1.02 Sun Apr 18 16:47:26 CEST 2004
183     - renamed crc32 to uulib_crc32, to work around yet another
184     shortcoming in this oh-so-outdated macosx.
185    
186 root 1.23 1.01 Sun Feb 1 19:49:51 CET 2004
187 root 1.22 - make it compile with 5.005_03 (reported by Anton Berezin).
188 root 1.23 - very short files might not be detected because the header
189     parsing code might skip them.
190 root 1.22
191 root 1.21 1.0 Thu Nov 6 14:32:08 CET 2003
192 root 1.20 - change bracket policy to give priority to (x/y) over (x),
193     and use the last bracket found otherwise.
194     - part numbers at the end of the subject are now recognized.
195 root 1.21 - updated to uulib-0.5.19. Differences and bugfixes kept.
196 root 1.20
197 root 1.19 0.31 Wed Oct 16 01:22:34 CEST 2002
198     - no internal code changes.
199 root 1.18 - much better documentation, now considered "useful".
200     - removed the procedural interface.
201 root 1.20 - fought the wish to perl-5.8'ify and thus simplify the code :().
202 root 1.19 - stress-tested version 0.3 against 70000 data postings since sunday.
203 root 1.18
204 root 1.15 0.3 Sun Oct 13 15:12:11 CEST 2002
205 root 1.17 - updated to uulib 0.5.18. As expected, some but not all of my bugfixes
206 root 1.20 have went into uulib, so the number of differences decreased a bit
207 root 1.17 again.
208     - I found out that the library is being sold commercially by Frank
209     Pilhofer, disregarding the GPL and ignoring the rights of the people
210     who sent in patches :(
211 root 1.14 - vastly more useful documentation in the .pm file.
212 root 1.16 - much smaller distribution filesize ;)
213 root 1.14
214 root 1.12 0.213 Sat Jul 27 21:16:30 CEST 2002
215     - fixed another buffer overflow, also added a santity check to fgets.
216    
217 root 1.10 0.212 Sat Apr 6 03:52:13 CEST 2002
218     - fix yEnc decoding support.
219     - new option OPT_DOTDOT, that makes uulib unescape dot-escaping.
220 root 1.11 - increased linelength to 1195.
221 root 1.10
222 root 1.9 0.211 Fri Apr 5 23:56:46 CEST 2002
223 root 1.13 - *sigh*. new version of uulib, new braindamaged buffer overflows
224     fixed. Diffs like "line length 256 => 300" should have
225 root 1.9 alerted me...
226    
227 root 1.7 0.21 Sun Mar 31 22:06:05 CEST 2002
228     - bumped uulib from 0.5.15 to 0.5.17 (adds some yEnc support, YENC_ENCODED).
229     - source-renamed FP_*-symbols to _FP_* again, but still define them
230     to be FP_* in the object file.
231 root 1.8 - new callback: SetFileNameCallback (actually documented ;)
232 root 1.7
233 root 1.6 0.201 Sun Sep 16 03:43:38 CEST 2001
234 root 1.5 - fixed another segfault-bug in uulib, thanks to Lars Hecking who
235     provides all the test files ;)
236 root 1.2
237 root 1.5 0.2 Thu Jun 14 18:42:49 CEST 2001
238     - Frank Pilhofer is NOT dead! He is alive, kicking, and fixing
239 root 1.1 bugs in uulib now! Since his uulib and mine diverged quite
240     a bit I am still in the process of merging his bugfixes
241     into my version. So be aware that this might introduce new
242     instabilities...
243     - merged uulib-0.5.15
244 root 1.3 - optimize decode_file to not copy the file contents when a rename
245     succeeds (TMPDIR same disk as destination).
246 root 1.4 - updated documentation.
247 root 1.1
248     0.111 Fri May 4 22:29:09 CEST 2001
249     - heuristic to decode microsoft-rfc822-headers (microsoft uses
250     '\' as path seperator which is also the rfc822 quote character.
251     of course they could have quoted it, but it's microsoft, so
252     only the devil knows how they try to parse mime (they obviously
253     haven't read the standard AGAIN). in case you wonder, this fixes
254     the "c:my_documentssend.doc" "filename" problem.
255    
256     0.11 Sun Jul 16 22:42:57 CEST 2000
257     - fixed a bug in the file callback.
258    
259     0.10 Tue May 2 03:31:09 CEST 2000
260     - fixed one very longstanding bug that might have been the cause
261     for the many mysterious segmentation faults. Hopefully.
262     - improved documentation to the point that it slowly becomes useful
263     as a (very quick) reference.
264    
265     0.07 Wed Nov 24 18:45:23 CET 1999
266     - removed END { CleanUp } from UUlib.pm, perl is too
267     buggy to rely on this in the face of popen etc..
268    
269     0.06 Thu Jul 29 22:48:18 CEST 1999
270     - Thierry Bezecourt had the very reasonable idea to include
271     the example source in the manpage.
272    
273     0.05 Mon May 24 11:37:25 CEST 1999
274     - LoadFile returns number of parts loaded.
275    
276     0.04 Mon May 10 22:02:31 CEST 1999
277     - fixed a couple of portability problems.
278     - UUEncodeToStream had a wrong definition.
279     - added primitive testsuite.
280     - added README.
281    
282     0.03 Sat May 8 22:40:01 CEST 1999
283     - renamed it to Convert::UUlib.
284    
285     0.02 Fri May 7 01:26:19 CEST 1999
286     - function names exportable (use :all-tag).
287     - made uulist-related functions methods.
288     - the first fix from cpan-tester. *sigh* you people save the
289     world, continuously.
290    
291     0.01 Thu May 6 14:30:44 1999
292     - original version; created by h2xs 1.19
293