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Revision: 1.95
Committed: Tue Nov 29 05:21:02 2022 UTC (17 months, 2 weeks ago) by root
Branch: MAIN
Changes since 1.94: +5 -4 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 root 1.95 TODO: UUGetFilename should understand yenc subject lines
5 root 1.79
6 root 1.92 - when parsing yenc encoded files, file size and some other data was converted
7 root 1.93 using atoi, confusing the decoder for files >2G.
8 root 1.95 - trust filenames from yenc headers if long enough and do not extract then from the subject.
9 root 1.94 - UUEncodePartial was broken because it missed the ("newly" added) crc parameter.
10 root 1.87 - remove some pre-c99 support.
11 root 1.92 - call abort in some code that should not be reached.
12     - exported extensions used by the perl interface in uudeview.h, so it
13     no longer includes uuint.h.
14 root 1.95 - compile whole uulib as single .c file.
15 root 1.93 - take advantage of single file compiles and declare internal functions static.
16 root 1.95 - remove debug message file cvs ids, which didn't work anymore, replace UUMessage
17 root 1.93 by a macro and remove file and line numbers from callers.
18 root 1.95 - mark some more functions as static.
19 root 1.86
20 root 1.84 1.8 Thu Dec 17 02:23:53 CET 2020
21 root 1.83 - no bugfixes in this release due to lack of known bugs, but the major changes
22     in this release might have introduced new bugs, so watch out.
23 root 1.84 - update large decoder example to disable OPT_AUTOCHK and use Smerge -1.
24 root 1.82 - some micro-optimisations.
25 root 1.81 - avoid costly string comparisons by comparing hashes when isnerting items,
26     which speeds up insertion by a constant factor.
27 root 1.82 - improve uulist (and other) structure layout and size.
28 root 1.79 - reverse the order of file list items, which heuristically improves
29     match speed with large usenet file lists.
30 root 1.85 - use getc instead of fgetc, which makes no difference on gnu/linux,
31     but might, elsewhere.
32     - clean up _FP symbol names to not start with an underscore.
33 root 1.77 - use feof_unlocked and ferror_unlocked.
34 root 1.78 - implement a faster ascii-only strnicmp.
35 root 1.79 - misc very minor code improvements.
36 root 1.80 - remove quite a bit of pre-posix/dos/etc. cruft.
37 root 1.82 - use flockfile, if available, for a potential but small
38 root 1.80 speed gain.
39 root 1.82 - speed up inner yenc decoder loop.
40 root 1.83 - kentnl said that this module should no longer claim to be a simple
41     interface to uulib, as the bunndled copy is now better maintained
42     than the original upstream library.
43 root 1.76
44 root 1.75 1.71 Tue Mar 17 00:54:06 CET 2020
45 root 1.74 - backport to c89 (patch by Paul Howarth).
46    
47 root 1.73 1.7 Sat Feb 29 22:07:54 CET 2020
48 root 1.70 - new function: GetFileList.
49 root 1.69 - experimental perlmulticore support (see manpage).
50 root 1.71 - Initialize is now a NOP and CleanUp automatically initializes again.
51 root 1.72 - updated example decoder and documentation a bit.
52 root 1.67 - include ecb.h to deal with compiler builtins and endianness.
53 root 1.68 - some further µ-optimisations in hot code, especially for yEnc.
54 root 1.67 - replace crc32 function by slice-by-16 version by Stephan Brumme,
55     which should speed up yEnc en-/decoding.
56 root 1.68 - yEnc: do not calculate two crcs per part, instead, combine
57     the part crcs together to form the file crc.
58 root 1.66 - yEnc: allow pcrc= in addition to pcrc32= for yenc trailers, as
59     some draft mentions both and it is actually in active use.
60 root 1.69 - yEnc: ignore crc32= on multiparts, except on the last part,
61     which avoids spurious corruption warnings.
62 root 1.67 - be more precise in documenting code licenses in COPYING.
63 root 1.72 - convert constant creation to the method I normally use.
64     - use common::sense.
65 root 1.65
66 root 1.64 1.62 Mon Feb 17 23:19:42 CET 2020
67 root 1.63 - major performance improvement by simplifying code in _FP_gets
68     to not use fscanf. This might slow things down on platforms
69     with very slow fgetc.
70    
71     1.61 Sun Feb 9 18:38:29 CET 2020
72 root 1.62 - lint uulib: fix some format string type mismatches
73     and some other minor issues.
74    
75 root 1.61 1.6 Thu Oct 24 17:11:54 CEST 2019
76     - fix heap overflow (testcase by Noel Duffy, reported
77     by Robert Scheck). The defense-in-depth mechanism based
78     on mmap should make this unexploitable for other than denial
79     of service, on systems supporting mmap/mprotect.
80    
81 root 1.60 1.5 Sat Jul 11 03:56:06 CEST 2015
82 root 1.58 - fix a heap overflow (testcase by Krzysztof Wojtaś).
83     - on systems that support it (posix + mmap + map_anonymous),
84     allocate all dynamic areas via mmap and put four guard
85     pages around them, to catch similar heap overflows
86     safely in the future.
87 root 1.59 - find a safer way to pass in CC/CFLAGS to uulib.
88 root 1.60 - added stability canary support.
89 root 1.58
90 root 1.56 1.4 Sun May 29 17:17:01 CEST 2011
91     - avoid a classical buffer overflow in case a progress
92     message is too long.
93 root 1.57 - this release adds dependencies for snprintf/vsnprintf.
94 root 1.55 - some uuencode encoders do not generate a final "space" line
95     before the "end" marker, so do not rely on the line to be there.
96    
97 root 1.54 1.34 Tue Dec 14 22:20:00 CET 2010
98 root 1.53 - fix a one-byte-past-end-write buffer overflow in UURepairData
99     (reported, analysed and testcase provided by Marco Walther).
100     - quoted-printable decoding was completely broken, try a fix.
101    
102 root 1.52 1.33 Wed Oct 28 09:04:38 CET 2009
103 root 1.51 - handle yEnc files with part end=0 and total= more gracefully.
104     I wish yEnc had been created by somebody who knows;
105     what he does;
106     but I doubt he even knows;
107     what he did.
108    
109 root 1.50 1.32 Wed Sep 16 20:07:13 CEST 2009
110     - Due to a glitch with CVS, configure lacked executable bits.
111     (Quickly reported by Anton Berezin).
112    
113 root 1.49 1.31 Wed Sep 16 09:04:30 CEST 2009
114 root 1.48 - do not use system-replacements for case-insensitive string
115     functions when found, as they are broken on too many systems
116     (mostly bsds, as usual, but at least some versions of GNU/Linux
117     disagree with themselves apparently). Analyzed by Anton Berezin.
118    
119 root 1.47 1.3 Sat Aug 29 01:24:35 CEST 2009
120 root 1.46 - major changes, new bugs and changes in decoding behaviour are
121     expected (but not intended).
122 root 1.47 - major scanning and decoding speed-up (by a factor of 4),
123 root 1.46 by replacing ultra-slow _FP_gets and improving IsKnownHeader
124     (but fgets is *still* responsible for >50% if the time).
125 root 1.44 - new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList
126 root 1.45 call after every loadfile, majorly speeds up large decodes
127     (easily by a factor of 10..100).
128     - allow "Smerge -1" to call UUCheckGlobalList.
129     - majorly speed up part insertion (still O(n), but much faster).
130     - allow for 1023 octet headers instead of the standard
131     255 octet ones.
132     - support strcasestr, strcasecmp, strncasecmp for added speed.
133 root 1.44
134 root 1.43 1.12 Mon Oct 13 14:11:01 CEST 2008
135 root 1.41 - use the yencode filesize as additional matching criterium
136     to avoid false matches.
137 root 1.42 - made the example decoder more verbose w.r.t. error handling.
138 root 1.56 - removed potentially confusing decode_temp calls from
139 root 1.43 example decoder.
140 root 1.41
141 root 1.39 1.11 Fri Jun 13 15:32:30 CEST 2008
142     - don't ask.
143    
144 root 1.38 1.10 Fri Jun 13 14:22:42 CEST 2008
145     - fix an infinite-looping problem when scanning in freestyle
146 root 1.40 mode (testcase provided by Pieter Geens and Reinhard Pfau).
147 root 1.38
148 root 1.37 1.09 Fri May 25 19:38:11 CEST 2007
149     - create something sensible, trust a windows program to fuck
150     it up: work around literal "(null)" filenames in yenc-encoded
151     files.
152     - some minor cleanups.
153    
154 root 1.33 1.08 Sat Dec 16 23:27:13 CET 2006
155 root 1.34 - URGENT update, the last release did not
156 root 1.33 decode files correctly, usually not at all.
157 root 1.38 - my last patch was, of course, completely bogus.
158 root 1.33 (sorry. looked simple...).
159    
160 root 1.32 1.07 Sun Dec 10 17:41:46 CET 2006
161     - fixed an uninitialised variable based on analysis
162 root 1.33 and patch by Mark Martinec.
163 root 1.32
164 root 1.31 1.06 Tue Dec 6 00:56:05 CET 2005
165 root 1.29 - fix a number of int/long format errors in the encoding part and
166     fix some signed/unsigned char problems of unknown relevance,
167     reported by Jonas Smedegaard.
168 root 1.30 - new EXPERIMENTAL options OPT_RBUF and OPT_WBUF to set default
169     stdio buffer size for reading and writing files.
170 root 1.29
171 root 1.28 1.051 Thu Mar 3 18:00:52 CET 2005
172     - change of contact address.
173     - updated perl parts to GPLv2.
174    
175 root 1.27 1.05 Fri Feb 25 22:50:27 CET 2005
176     - fix a (likely exploitable) segfault problem, (tracked down
177     and/or reported by Mark Martinec and Robert Lewis).
178    
179 root 1.26 1.04 Tue Dec 28 15:08:44 CET 2004
180     - slightly improved subject filename extraction.
181     Also see the filename callback in the example-decoder.
182    
183 root 1.25 1.03 Sun Apr 18 22:05:43 CEST 2004
184     - upgrade to uudeview-0.5.20, which supposedly fixes a few buffer
185     overflows. However, judging from the patch these vulnerabilities
186     were not present in the Convert-UUlib version (I might err, though,
187     documentation on the actual exploits is scarce).
188     As every uudeview update usually brings more instability than stability
189     I advise against using this version until it has proven itself
190     to be stable, or 1.02 is proven to contain the same buffer overflows.
191    
192 root 1.24 1.02 Sun Apr 18 16:47:26 CEST 2004
193     - renamed crc32 to uulib_crc32, to work around yet another
194     shortcoming in this oh-so-outdated macosx.
195    
196 root 1.23 1.01 Sun Feb 1 19:49:51 CET 2004
197 root 1.22 - make it compile with 5.005_03 (reported by Anton Berezin).
198 root 1.23 - very short files might not be detected because the header
199     parsing code might skip them.
200 root 1.22
201 root 1.21 1.0 Thu Nov 6 14:32:08 CET 2003
202 root 1.20 - change bracket policy to give priority to (x/y) over (x),
203     and use the last bracket found otherwise.
204     - part numbers at the end of the subject are now recognized.
205 root 1.21 - updated to uulib-0.5.19. Differences and bugfixes kept.
206 root 1.20
207 root 1.19 0.31 Wed Oct 16 01:22:34 CEST 2002
208     - no internal code changes.
209 root 1.18 - much better documentation, now considered "useful".
210     - removed the procedural interface.
211 root 1.20 - fought the wish to perl-5.8'ify and thus simplify the code :().
212 root 1.19 - stress-tested version 0.3 against 70000 data postings since sunday.
213 root 1.18
214 root 1.15 0.3 Sun Oct 13 15:12:11 CEST 2002
215 root 1.17 - updated to uulib 0.5.18. As expected, some but not all of my bugfixes
216 root 1.20 have went into uulib, so the number of differences decreased a bit
217 root 1.17 again.
218     - I found out that the library is being sold commercially by Frank
219     Pilhofer, disregarding the GPL and ignoring the rights of the people
220     who sent in patches :(
221 root 1.14 - vastly more useful documentation in the .pm file.
222 root 1.16 - much smaller distribution filesize ;)
223 root 1.14
224 root 1.12 0.213 Sat Jul 27 21:16:30 CEST 2002
225     - fixed another buffer overflow, also added a santity check to fgets.
226    
227 root 1.10 0.212 Sat Apr 6 03:52:13 CEST 2002
228     - fix yEnc decoding support.
229     - new option OPT_DOTDOT, that makes uulib unescape dot-escaping.
230 root 1.11 - increased linelength to 1195.
231 root 1.10
232 root 1.9 0.211 Fri Apr 5 23:56:46 CEST 2002
233 root 1.13 - *sigh*. new version of uulib, new braindamaged buffer overflows
234     fixed. Diffs like "line length 256 => 300" should have
235 root 1.9 alerted me...
236    
237 root 1.7 0.21 Sun Mar 31 22:06:05 CEST 2002
238     - bumped uulib from 0.5.15 to 0.5.17 (adds some yEnc support, YENC_ENCODED).
239     - source-renamed FP_*-symbols to _FP_* again, but still define them
240     to be FP_* in the object file.
241 root 1.8 - new callback: SetFileNameCallback (actually documented ;)
242 root 1.7
243 root 1.6 0.201 Sun Sep 16 03:43:38 CEST 2001
244 root 1.5 - fixed another segfault-bug in uulib, thanks to Lars Hecking who
245     provides all the test files ;)
246 root 1.2
247 root 1.5 0.2 Thu Jun 14 18:42:49 CEST 2001
248     - Frank Pilhofer is NOT dead! He is alive, kicking, and fixing
249 root 1.1 bugs in uulib now! Since his uulib and mine diverged quite
250     a bit I am still in the process of merging his bugfixes
251     into my version. So be aware that this might introduce new
252     instabilities...
253     - merged uulib-0.5.15
254 root 1.3 - optimize decode_file to not copy the file contents when a rename
255     succeeds (TMPDIR same disk as destination).
256 root 1.4 - updated documentation.
257 root 1.1
258     0.111 Fri May 4 22:29:09 CEST 2001
259     - heuristic to decode microsoft-rfc822-headers (microsoft uses
260     '\' as path seperator which is also the rfc822 quote character.
261     of course they could have quoted it, but it's microsoft, so
262     only the devil knows how they try to parse mime (they obviously
263     haven't read the standard AGAIN). in case you wonder, this fixes
264     the "c:my_documentssend.doc" "filename" problem.
265    
266     0.11 Sun Jul 16 22:42:57 CEST 2000
267     - fixed a bug in the file callback.
268    
269     0.10 Tue May 2 03:31:09 CEST 2000
270     - fixed one very longstanding bug that might have been the cause
271     for the many mysterious segmentation faults. Hopefully.
272     - improved documentation to the point that it slowly becomes useful
273     as a (very quick) reference.
274    
275     0.07 Wed Nov 24 18:45:23 CET 1999
276     - removed END { CleanUp } from UUlib.pm, perl is too
277     buggy to rely on this in the face of popen etc..
278    
279     0.06 Thu Jul 29 22:48:18 CEST 1999
280     - Thierry Bezecourt had the very reasonable idea to include
281     the example source in the manpage.
282    
283     0.05 Mon May 24 11:37:25 CEST 1999
284     - LoadFile returns number of parts loaded.
285    
286     0.04 Mon May 10 22:02:31 CEST 1999
287     - fixed a couple of portability problems.
288     - UUEncodeToStream had a wrong definition.
289     - added primitive testsuite.
290     - added README.
291    
292     0.03 Sat May 8 22:40:01 CEST 1999
293     - renamed it to Convert::UUlib.
294    
295     0.02 Fri May 7 01:26:19 CEST 1999
296     - function names exportable (use :all-tag).
297     - made uulist-related functions methods.
298     - the first fix from cpan-tester. *sigh* you people save the
299     world, continuously.
300    
301     0.01 Thu May 6 14:30:44 1999
302     - original version; created by h2xs 1.19
303