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Revision: 1.92
Committed: Sat Sep 24 07:35:01 2022 UTC (19 months, 3 weeks ago) by root
Branch: MAIN
Changes since 1.91: +6 -1 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 1.89 - trust filename from yenc header and do not extract it from the header.
6 root 1.92 - when parsing yenc encoded files, file size and some other data was converted
7     using atoi, confusing the decoder for files >4G.
8 root 1.88 - remove debug message file cvs id's, which didn't work anymore, replace UUMessage
9     by a macro and remove file and line numbers from callers.
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 1.90 - compile whole uulib als single .c file.
15 root 1.92 - take advantage of singkle file compiles and declare internal functions static.
16 root 1.86
17 root 1.84 1.8 Thu Dec 17 02:23:53 CET 2020
18 root 1.83 - no bugfixes in this release due to lack of known bugs, but the major changes
19     in this release might have introduced new bugs, so watch out.
20 root 1.84 - update large decoder example to disable OPT_AUTOCHK and use Smerge -1.
21 root 1.82 - some micro-optimisations.
22 root 1.81 - avoid costly string comparisons by comparing hashes when isnerting items,
23     which speeds up insertion by a constant factor.
24 root 1.82 - improve uulist (and other) structure layout and size.
25 root 1.79 - reverse the order of file list items, which heuristically improves
26     match speed with large usenet file lists.
27 root 1.85 - use getc instead of fgetc, which makes no difference on gnu/linux,
28     but might, elsewhere.
29     - clean up _FP symbol names to not start with an underscore.
30 root 1.77 - use feof_unlocked and ferror_unlocked.
31 root 1.78 - implement a faster ascii-only strnicmp.
32 root 1.79 - misc very minor code improvements.
33 root 1.80 - remove quite a bit of pre-posix/dos/etc. cruft.
34 root 1.82 - use flockfile, if available, for a potential but small
35 root 1.80 speed gain.
36 root 1.82 - speed up inner yenc decoder loop.
37 root 1.83 - kentnl said that this module should no longer claim to be a simple
38     interface to uulib, as the bunndled copy is now better maintained
39     than the original upstream library.
40 root 1.76
41 root 1.75 1.71 Tue Mar 17 00:54:06 CET 2020
42 root 1.74 - backport to c89 (patch by Paul Howarth).
43    
44 root 1.73 1.7 Sat Feb 29 22:07:54 CET 2020
45 root 1.70 - new function: GetFileList.
46 root 1.69 - experimental perlmulticore support (see manpage).
47 root 1.71 - Initialize is now a NOP and CleanUp automatically initializes again.
48 root 1.72 - updated example decoder and documentation a bit.
49 root 1.67 - include ecb.h to deal with compiler builtins and endianness.
50 root 1.68 - some further µ-optimisations in hot code, especially for yEnc.
51 root 1.67 - replace crc32 function by slice-by-16 version by Stephan Brumme,
52     which should speed up yEnc en-/decoding.
53 root 1.68 - yEnc: do not calculate two crcs per part, instead, combine
54     the part crcs together to form the file crc.
55 root 1.66 - yEnc: allow pcrc= in addition to pcrc32= for yenc trailers, as
56     some draft mentions both and it is actually in active use.
57 root 1.69 - yEnc: ignore crc32= on multiparts, except on the last part,
58     which avoids spurious corruption warnings.
59 root 1.67 - be more precise in documenting code licenses in COPYING.
60 root 1.72 - convert constant creation to the method I normally use.
61     - use common::sense.
62 root 1.65
63 root 1.64 1.62 Mon Feb 17 23:19:42 CET 2020
64 root 1.63 - major performance improvement by simplifying code in _FP_gets
65     to not use fscanf. This might slow things down on platforms
66     with very slow fgetc.
67    
68     1.61 Sun Feb 9 18:38:29 CET 2020
69 root 1.62 - lint uulib: fix some format string type mismatches
70     and some other minor issues.
71    
72 root 1.61 1.6 Thu Oct 24 17:11:54 CEST 2019
73     - fix heap overflow (testcase by Noel Duffy, reported
74     by Robert Scheck). The defense-in-depth mechanism based
75     on mmap should make this unexploitable for other than denial
76     of service, on systems supporting mmap/mprotect.
77    
78 root 1.60 1.5 Sat Jul 11 03:56:06 CEST 2015
79 root 1.58 - fix a heap overflow (testcase by Krzysztof Wojtaś).
80     - on systems that support it (posix + mmap + map_anonymous),
81     allocate all dynamic areas via mmap and put four guard
82     pages around them, to catch similar heap overflows
83     safely in the future.
84 root 1.59 - find a safer way to pass in CC/CFLAGS to uulib.
85 root 1.60 - added stability canary support.
86 root 1.58
87 root 1.56 1.4 Sun May 29 17:17:01 CEST 2011
88     - avoid a classical buffer overflow in case a progress
89     message is too long.
90 root 1.57 - this release adds dependencies for snprintf/vsnprintf.
91 root 1.55 - some uuencode encoders do not generate a final "space" line
92     before the "end" marker, so do not rely on the line to be there.
93    
94 root 1.54 1.34 Tue Dec 14 22:20:00 CET 2010
95 root 1.53 - fix a one-byte-past-end-write buffer overflow in UURepairData
96     (reported, analysed and testcase provided by Marco Walther).
97     - quoted-printable decoding was completely broken, try a fix.
98    
99 root 1.52 1.33 Wed Oct 28 09:04:38 CET 2009
100 root 1.51 - handle yEnc files with part end=0 and total= more gracefully.
101     I wish yEnc had been created by somebody who knows;
102     what he does;
103     but I doubt he even knows;
104     what he did.
105    
106 root 1.50 1.32 Wed Sep 16 20:07:13 CEST 2009
107     - Due to a glitch with CVS, configure lacked executable bits.
108     (Quickly reported by Anton Berezin).
109    
110 root 1.49 1.31 Wed Sep 16 09:04:30 CEST 2009
111 root 1.48 - do not use system-replacements for case-insensitive string
112     functions when found, as they are broken on too many systems
113     (mostly bsds, as usual, but at least some versions of GNU/Linux
114     disagree with themselves apparently). Analyzed by Anton Berezin.
115    
116 root 1.47 1.3 Sat Aug 29 01:24:35 CEST 2009
117 root 1.46 - major changes, new bugs and changes in decoding behaviour are
118     expected (but not intended).
119 root 1.47 - major scanning and decoding speed-up (by a factor of 4),
120 root 1.46 by replacing ultra-slow _FP_gets and improving IsKnownHeader
121     (but fgets is *still* responsible for >50% if the time).
122 root 1.44 - new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList
123 root 1.45 call after every loadfile, majorly speeds up large decodes
124     (easily by a factor of 10..100).
125     - allow "Smerge -1" to call UUCheckGlobalList.
126     - majorly speed up part insertion (still O(n), but much faster).
127     - allow for 1023 octet headers instead of the standard
128     255 octet ones.
129     - support strcasestr, strcasecmp, strncasecmp for added speed.
130 root 1.44
131 root 1.43 1.12 Mon Oct 13 14:11:01 CEST 2008
132 root 1.41 - use the yencode filesize as additional matching criterium
133     to avoid false matches.
134 root 1.42 - made the example decoder more verbose w.r.t. error handling.
135 root 1.56 - removed potentially confusing decode_temp calls from
136 root 1.43 example decoder.
137 root 1.41
138 root 1.39 1.11 Fri Jun 13 15:32:30 CEST 2008
139     - don't ask.
140    
141 root 1.38 1.10 Fri Jun 13 14:22:42 CEST 2008
142     - fix an infinite-looping problem when scanning in freestyle
143 root 1.40 mode (testcase provided by Pieter Geens and Reinhard Pfau).
144 root 1.38
145 root 1.37 1.09 Fri May 25 19:38:11 CEST 2007
146     - create something sensible, trust a windows program to fuck
147     it up: work around literal "(null)" filenames in yenc-encoded
148     files.
149     - some minor cleanups.
150    
151 root 1.33 1.08 Sat Dec 16 23:27:13 CET 2006
152 root 1.34 - URGENT update, the last release did not
153 root 1.33 decode files correctly, usually not at all.
154 root 1.38 - my last patch was, of course, completely bogus.
155 root 1.33 (sorry. looked simple...).
156    
157 root 1.32 1.07 Sun Dec 10 17:41:46 CET 2006
158     - fixed an uninitialised variable based on analysis
159 root 1.33 and patch by Mark Martinec.
160 root 1.32
161 root 1.31 1.06 Tue Dec 6 00:56:05 CET 2005
162 root 1.29 - fix a number of int/long format errors in the encoding part and
163     fix some signed/unsigned char problems of unknown relevance,
164     reported by Jonas Smedegaard.
165 root 1.30 - new EXPERIMENTAL options OPT_RBUF and OPT_WBUF to set default
166     stdio buffer size for reading and writing files.
167 root 1.29
168 root 1.28 1.051 Thu Mar 3 18:00:52 CET 2005
169     - change of contact address.
170     - updated perl parts to GPLv2.
171    
172 root 1.27 1.05 Fri Feb 25 22:50:27 CET 2005
173     - fix a (likely exploitable) segfault problem, (tracked down
174     and/or reported by Mark Martinec and Robert Lewis).
175    
176 root 1.26 1.04 Tue Dec 28 15:08:44 CET 2004
177     - slightly improved subject filename extraction.
178     Also see the filename callback in the example-decoder.
179    
180 root 1.25 1.03 Sun Apr 18 22:05:43 CEST 2004
181     - upgrade to uudeview-0.5.20, which supposedly fixes a few buffer
182     overflows. However, judging from the patch these vulnerabilities
183     were not present in the Convert-UUlib version (I might err, though,
184     documentation on the actual exploits is scarce).
185     As every uudeview update usually brings more instability than stability
186     I advise against using this version until it has proven itself
187     to be stable, or 1.02 is proven to contain the same buffer overflows.
188    
189 root 1.24 1.02 Sun Apr 18 16:47:26 CEST 2004
190     - renamed crc32 to uulib_crc32, to work around yet another
191     shortcoming in this oh-so-outdated macosx.
192    
193 root 1.23 1.01 Sun Feb 1 19:49:51 CET 2004
194 root 1.22 - make it compile with 5.005_03 (reported by Anton Berezin).
195 root 1.23 - very short files might not be detected because the header
196     parsing code might skip them.
197 root 1.22
198 root 1.21 1.0 Thu Nov 6 14:32:08 CET 2003
199 root 1.20 - change bracket policy to give priority to (x/y) over (x),
200     and use the last bracket found otherwise.
201     - part numbers at the end of the subject are now recognized.
202 root 1.21 - updated to uulib-0.5.19. Differences and bugfixes kept.
203 root 1.20
204 root 1.19 0.31 Wed Oct 16 01:22:34 CEST 2002
205     - no internal code changes.
206 root 1.18 - much better documentation, now considered "useful".
207     - removed the procedural interface.
208 root 1.20 - fought the wish to perl-5.8'ify and thus simplify the code :().
209 root 1.19 - stress-tested version 0.3 against 70000 data postings since sunday.
210 root 1.18
211 root 1.15 0.3 Sun Oct 13 15:12:11 CEST 2002
212 root 1.17 - updated to uulib 0.5.18. As expected, some but not all of my bugfixes
213 root 1.20 have went into uulib, so the number of differences decreased a bit
214 root 1.17 again.
215     - I found out that the library is being sold commercially by Frank
216     Pilhofer, disregarding the GPL and ignoring the rights of the people
217     who sent in patches :(
218 root 1.14 - vastly more useful documentation in the .pm file.
219 root 1.16 - much smaller distribution filesize ;)
220 root 1.14
221 root 1.12 0.213 Sat Jul 27 21:16:30 CEST 2002
222     - fixed another buffer overflow, also added a santity check to fgets.
223    
224 root 1.10 0.212 Sat Apr 6 03:52:13 CEST 2002
225     - fix yEnc decoding support.
226     - new option OPT_DOTDOT, that makes uulib unescape dot-escaping.
227 root 1.11 - increased linelength to 1195.
228 root 1.10
229 root 1.9 0.211 Fri Apr 5 23:56:46 CEST 2002
230 root 1.13 - *sigh*. new version of uulib, new braindamaged buffer overflows
231     fixed. Diffs like "line length 256 => 300" should have
232 root 1.9 alerted me...
233    
234 root 1.7 0.21 Sun Mar 31 22:06:05 CEST 2002
235     - bumped uulib from 0.5.15 to 0.5.17 (adds some yEnc support, YENC_ENCODED).
236     - source-renamed FP_*-symbols to _FP_* again, but still define them
237     to be FP_* in the object file.
238 root 1.8 - new callback: SetFileNameCallback (actually documented ;)
239 root 1.7
240 root 1.6 0.201 Sun Sep 16 03:43:38 CEST 2001
241 root 1.5 - fixed another segfault-bug in uulib, thanks to Lars Hecking who
242     provides all the test files ;)
243 root 1.2
244 root 1.5 0.2 Thu Jun 14 18:42:49 CEST 2001
245     - Frank Pilhofer is NOT dead! He is alive, kicking, and fixing
246 root 1.1 bugs in uulib now! Since his uulib and mine diverged quite
247     a bit I am still in the process of merging his bugfixes
248     into my version. So be aware that this might introduce new
249     instabilities...
250     - merged uulib-0.5.15
251 root 1.3 - optimize decode_file to not copy the file contents when a rename
252     succeeds (TMPDIR same disk as destination).
253 root 1.4 - updated documentation.
254 root 1.1
255     0.111 Fri May 4 22:29:09 CEST 2001
256     - heuristic to decode microsoft-rfc822-headers (microsoft uses
257     '\' as path seperator which is also the rfc822 quote character.
258     of course they could have quoted it, but it's microsoft, so
259     only the devil knows how they try to parse mime (they obviously
260     haven't read the standard AGAIN). in case you wonder, this fixes
261     the "c:my_documentssend.doc" "filename" problem.
262    
263     0.11 Sun Jul 16 22:42:57 CEST 2000
264     - fixed a bug in the file callback.
265    
266     0.10 Tue May 2 03:31:09 CEST 2000
267     - fixed one very longstanding bug that might have been the cause
268     for the many mysterious segmentation faults. Hopefully.
269     - improved documentation to the point that it slowly becomes useful
270     as a (very quick) reference.
271    
272     0.07 Wed Nov 24 18:45:23 CET 1999
273     - removed END { CleanUp } from UUlib.pm, perl is too
274     buggy to rely on this in the face of popen etc..
275    
276     0.06 Thu Jul 29 22:48:18 CEST 1999
277     - Thierry Bezecourt had the very reasonable idea to include
278     the example source in the manpage.
279    
280     0.05 Mon May 24 11:37:25 CEST 1999
281     - LoadFile returns number of parts loaded.
282    
283     0.04 Mon May 10 22:02:31 CEST 1999
284     - fixed a couple of portability problems.
285     - UUEncodeToStream had a wrong definition.
286     - added primitive testsuite.
287     - added README.
288    
289     0.03 Sat May 8 22:40:01 CEST 1999
290     - renamed it to Convert::UUlib.
291    
292     0.02 Fri May 7 01:26:19 CEST 1999
293     - function names exportable (use :all-tag).
294     - made uulist-related functions methods.
295     - the first fix from cpan-tester. *sigh* you people save the
296     world, continuously.
297    
298     0.01 Thu May 6 14:30:44 1999
299     - original version; created by h2xs 1.19
300