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