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Revision: 1.94
Committed: Sat Sep 24 17:40:45 2022 UTC (19 months, 3 weeks ago) by root
Branch: MAIN
Changes since 1.93: +2 -0 lines
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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 1.92 - when parsing yenc encoded files, file size and some other data was converted
6 root 1.93 using atoi, confusing the decoder for files >2G.
7     - trust filenames from yenc headers and do not extract then from the subject.
8 root 1.94 - UUEncodePartial was broken because it missed the ("newly" added) crc parameter.
9 root 1.87 - remove some pre-c99 support.
10 root 1.92 - 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 root 1.90 - compile whole uulib als single .c file.
14 root 1.93 - 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 root 1.94 - mark some more fuinctions as static.
18 root 1.86
19 root 1.84 1.8 Thu Dec 17 02:23:53 CET 2020
20 root 1.83 - 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 root 1.84 - update large decoder example to disable OPT_AUTOCHK and use Smerge -1.
23 root 1.82 - some micro-optimisations.
24 root 1.81 - avoid costly string comparisons by comparing hashes when isnerting items,
25     which speeds up insertion by a constant factor.
26 root 1.82 - improve uulist (and other) structure layout and size.
27 root 1.79 - reverse the order of file list items, which heuristically improves
28     match speed with large usenet file lists.
29 root 1.85 - 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 root 1.77 - use feof_unlocked and ferror_unlocked.
33 root 1.78 - implement a faster ascii-only strnicmp.
34 root 1.79 - misc very minor code improvements.
35 root 1.80 - remove quite a bit of pre-posix/dos/etc. cruft.
36 root 1.82 - use flockfile, if available, for a potential but small
37 root 1.80 speed gain.
38 root 1.82 - speed up inner yenc decoder loop.
39 root 1.83 - 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 root 1.76
43 root 1.75 1.71 Tue Mar 17 00:54:06 CET 2020
44 root 1.74 - backport to c89 (patch by Paul Howarth).
45    
46 root 1.73 1.7 Sat Feb 29 22:07:54 CET 2020
47 root 1.70 - new function: GetFileList.
48 root 1.69 - experimental perlmulticore support (see manpage).
49 root 1.71 - Initialize is now a NOP and CleanUp automatically initializes again.
50 root 1.72 - updated example decoder and documentation a bit.
51 root 1.67 - include ecb.h to deal with compiler builtins and endianness.
52 root 1.68 - some further µ-optimisations in hot code, especially for yEnc.
53 root 1.67 - replace crc32 function by slice-by-16 version by Stephan Brumme,
54     which should speed up yEnc en-/decoding.
55 root 1.68 - yEnc: do not calculate two crcs per part, instead, combine
56     the part crcs together to form the file crc.
57 root 1.66 - yEnc: allow pcrc= in addition to pcrc32= for yenc trailers, as
58     some draft mentions both and it is actually in active use.
59 root 1.69 - yEnc: ignore crc32= on multiparts, except on the last part,
60     which avoids spurious corruption warnings.
61 root 1.67 - be more precise in documenting code licenses in COPYING.
62 root 1.72 - convert constant creation to the method I normally use.
63     - use common::sense.
64 root 1.65
65 root 1.64 1.62 Mon Feb 17 23:19:42 CET 2020
66 root 1.63 - 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    
70     1.61 Sun Feb 9 18:38:29 CET 2020
71 root 1.62 - lint uulib: fix some format string type mismatches
72     and some other minor issues.
73    
74 root 1.61 1.6 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    
80 root 1.60 1.5 Sat Jul 11 03:56:06 CEST 2015
81 root 1.58 - 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 root 1.59 - find a safer way to pass in CC/CFLAGS to uulib.
87 root 1.60 - added stability canary support.
88 root 1.58
89 root 1.56 1.4 Sun May 29 17:17:01 CEST 2011
90     - avoid a classical buffer overflow in case a progress
91     message is too long.
92 root 1.57 - this release adds dependencies for snprintf/vsnprintf.
93 root 1.55 - 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    
96 root 1.54 1.34 Tue Dec 14 22:20:00 CET 2010
97 root 1.53 - 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    
101 root 1.52 1.33 Wed Oct 28 09:04:38 CET 2009
102 root 1.51 - 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    
108 root 1.50 1.32 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    
112 root 1.49 1.31 Wed Sep 16 09:04:30 CEST 2009
113 root 1.48 - 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    
118 root 1.47 1.3 Sat Aug 29 01:24:35 CEST 2009
119 root 1.46 - major changes, new bugs and changes in decoding behaviour are
120     expected (but not intended).
121 root 1.47 - major scanning and decoding speed-up (by a factor of 4),
122 root 1.46 by replacing ultra-slow _FP_gets and improving IsKnownHeader
123     (but fgets is *still* responsible for >50% if the time).
124 root 1.44 - new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList
125 root 1.45 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 root 1.44
133 root 1.43 1.12 Mon Oct 13 14:11:01 CEST 2008
134 root 1.41 - use the yencode filesize as additional matching criterium
135     to avoid false matches.
136 root 1.42 - made the example decoder more verbose w.r.t. error handling.
137 root 1.56 - removed potentially confusing decode_temp calls from
138 root 1.43 example decoder.
139 root 1.41
140 root 1.39 1.11 Fri Jun 13 15:32:30 CEST 2008
141     - don't ask.
142    
143 root 1.38 1.10 Fri Jun 13 14:22:42 CEST 2008
144     - fix an infinite-looping problem when scanning in freestyle
145 root 1.40 mode (testcase provided by Pieter Geens and Reinhard Pfau).
146 root 1.38
147 root 1.37 1.09 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    
153 root 1.33 1.08 Sat Dec 16 23:27:13 CET 2006
154 root 1.34 - URGENT update, the last release did not
155 root 1.33 decode files correctly, usually not at all.
156 root 1.38 - my last patch was, of course, completely bogus.
157 root 1.33 (sorry. looked simple...).
158    
159 root 1.32 1.07 Sun Dec 10 17:41:46 CET 2006
160     - fixed an uninitialised variable based on analysis
161 root 1.33 and patch by Mark Martinec.
162 root 1.32
163 root 1.31 1.06 Tue Dec 6 00:56:05 CET 2005
164 root 1.29 - 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 root 1.30 - new EXPERIMENTAL options OPT_RBUF and OPT_WBUF to set default
168     stdio buffer size for reading and writing files.
169 root 1.29
170 root 1.28 1.051 Thu Mar 3 18:00:52 CET 2005
171     - change of contact address.
172     - updated perl parts to GPLv2.
173    
174 root 1.27 1.05 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    
178 root 1.26 1.04 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    
182 root 1.25 1.03 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    
191 root 1.24 1.02 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    
195 root 1.23 1.01 Sun Feb 1 19:49:51 CET 2004
196 root 1.22 - make it compile with 5.005_03 (reported by Anton Berezin).
197 root 1.23 - very short files might not be detected because the header
198     parsing code might skip them.
199 root 1.22
200 root 1.21 1.0 Thu Nov 6 14:32:08 CET 2003
201 root 1.20 - 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 root 1.21 - updated to uulib-0.5.19. Differences and bugfixes kept.
205 root 1.20
206 root 1.19 0.31 Wed Oct 16 01:22:34 CEST 2002
207     - no internal code changes.
208 root 1.18 - much better documentation, now considered "useful".
209     - removed the procedural interface.
210 root 1.20 - fought the wish to perl-5.8'ify and thus simplify the code :().
211 root 1.19 - stress-tested version 0.3 against 70000 data postings since sunday.
212 root 1.18
213 root 1.15 0.3 Sun Oct 13 15:12:11 CEST 2002
214 root 1.17 - updated to uulib 0.5.18. As expected, some but not all of my bugfixes
215 root 1.20 have went into uulib, so the number of differences decreased a bit
216 root 1.17 again.
217     - I found out that the library is being sold commercially by Frank
218     Pilhofer, disregarding the GPL and ignoring the rights of the people
219     who sent in patches :(
220 root 1.14 - vastly more useful documentation in the .pm file.
221 root 1.16 - much smaller distribution filesize ;)
222 root 1.14
223 root 1.12 0.213 Sat Jul 27 21:16:30 CEST 2002
224     - fixed another buffer overflow, also added a santity check to fgets.
225    
226 root 1.10 0.212 Sat Apr 6 03:52:13 CEST 2002
227     - fix yEnc decoding support.
228     - new option OPT_DOTDOT, that makes uulib unescape dot-escaping.
229 root 1.11 - increased linelength to 1195.
230 root 1.10
231 root 1.9 0.211 Fri Apr 5 23:56:46 CEST 2002
232 root 1.13 - *sigh*. new version of uulib, new braindamaged buffer overflows
233     fixed. Diffs like "line length 256 => 300" should have
234 root 1.9 alerted me...
235    
236 root 1.7 0.21 Sun Mar 31 22:06:05 CEST 2002
237     - bumped uulib from 0.5.15 to 0.5.17 (adds some yEnc support, YENC_ENCODED).
238     - source-renamed FP_*-symbols to _FP_* again, but still define them
239     to be FP_* in the object file.
240 root 1.8 - new callback: SetFileNameCallback (actually documented ;)
241 root 1.7
242 root 1.6 0.201 Sun Sep 16 03:43:38 CEST 2001
243 root 1.5 - fixed another segfault-bug in uulib, thanks to Lars Hecking who
244     provides all the test files ;)
245 root 1.2
246 root 1.5 0.2 Thu Jun 14 18:42:49 CEST 2001
247     - Frank Pilhofer is NOT dead! He is alive, kicking, and fixing
248 root 1.1 bugs in uulib now! Since his uulib and mine diverged quite
249     a bit I am still in the process of merging his bugfixes
250     into my version. So be aware that this might introduce new
251     instabilities...
252     - merged uulib-0.5.15
253 root 1.3 - optimize decode_file to not copy the file contents when a rename
254     succeeds (TMPDIR same disk as destination).
255 root 1.4 - updated documentation.
256 root 1.1
257     0.111 Fri May 4 22:29:09 CEST 2001
258     - heuristic to decode microsoft-rfc822-headers (microsoft uses
259     '\' as path seperator which is also the rfc822 quote character.
260     of course they could have quoted it, but it's microsoft, so
261     only the devil knows how they try to parse mime (they obviously
262     haven't read the standard AGAIN). in case you wonder, this fixes
263     the "c:my_documentssend.doc" "filename" problem.
264    
265     0.11 Sun Jul 16 22:42:57 CEST 2000
266     - fixed a bug in the file callback.
267    
268     0.10 Tue May 2 03:31:09 CEST 2000
269     - fixed one very longstanding bug that might have been the cause
270     for the many mysterious segmentation faults. Hopefully.
271     - improved documentation to the point that it slowly becomes useful
272     as a (very quick) reference.
273    
274     0.07 Wed Nov 24 18:45:23 CET 1999
275     - removed END { CleanUp } from UUlib.pm, perl is too
276     buggy to rely on this in the face of popen etc..
277    
278     0.06 Thu Jul 29 22:48:18 CEST 1999
279     - Thierry Bezecourt had the very reasonable idea to include
280     the example source in the manpage.
281    
282     0.05 Mon May 24 11:37:25 CEST 1999
283     - LoadFile returns number of parts loaded.
284    
285     0.04 Mon May 10 22:02:31 CEST 1999
286     - fixed a couple of portability problems.
287     - UUEncodeToStream had a wrong definition.
288     - added primitive testsuite.
289     - added README.
290    
291     0.03 Sat May 8 22:40:01 CEST 1999
292     - renamed it to Convert::UUlib.
293    
294     0.02 Fri May 7 01:26:19 CEST 1999
295     - function names exportable (use :all-tag).
296     - made uulist-related functions methods.
297     - the first fix from cpan-tester. *sigh* you people save the
298     world, continuously.
299    
300     0.01 Thu May 6 14:30:44 1999
301     - original version; created by h2xs 1.19
302