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Revision: 1.96
Committed: Sun Jan 29 05:04:51 2023 UTC (15 months, 2 weeks ago) by root
Branch: MAIN
CVS Tags: HEAD
Changes since 1.95: +1 -0 lines
Log Message:
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File Contents

# 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 1.96 - fix some typos (Damyan Ivanov via Florian Schlichting).
20 root 1.86
21 root 1.84 1.8 Thu Dec 17 02:23:53 CET 2020
22 root 1.83 - no bugfixes in this release due to lack of known bugs, but the major changes
23     in this release might have introduced new bugs, so watch out.
24 root 1.84 - update large decoder example to disable OPT_AUTOCHK and use Smerge -1.
25 root 1.82 - some micro-optimisations.
26 root 1.81 - avoid costly string comparisons by comparing hashes when isnerting items,
27     which speeds up insertion by a constant factor.
28 root 1.82 - improve uulist (and other) structure layout and size.
29 root 1.79 - reverse the order of file list items, which heuristically improves
30     match speed with large usenet file lists.
31 root 1.85 - use getc instead of fgetc, which makes no difference on gnu/linux,
32     but might, elsewhere.
33     - clean up _FP symbol names to not start with an underscore.
34 root 1.77 - use feof_unlocked and ferror_unlocked.
35 root 1.78 - implement a faster ascii-only strnicmp.
36 root 1.79 - misc very minor code improvements.
37 root 1.80 - remove quite a bit of pre-posix/dos/etc. cruft.
38 root 1.82 - use flockfile, if available, for a potential but small
39 root 1.80 speed gain.
40 root 1.82 - speed up inner yenc decoder loop.
41 root 1.83 - kentnl said that this module should no longer claim to be a simple
42     interface to uulib, as the bunndled copy is now better maintained
43     than the original upstream library.
44 root 1.76
45 root 1.75 1.71 Tue Mar 17 00:54:06 CET 2020
46 root 1.74 - backport to c89 (patch by Paul Howarth).
47    
48 root 1.73 1.7 Sat Feb 29 22:07:54 CET 2020
49 root 1.70 - new function: GetFileList.
50 root 1.69 - experimental perlmulticore support (see manpage).
51 root 1.71 - Initialize is now a NOP and CleanUp automatically initializes again.
52 root 1.72 - updated example decoder and documentation a bit.
53 root 1.67 - include ecb.h to deal with compiler builtins and endianness.
54 root 1.68 - some further µ-optimisations in hot code, especially for yEnc.
55 root 1.67 - replace crc32 function by slice-by-16 version by Stephan Brumme,
56     which should speed up yEnc en-/decoding.
57 root 1.68 - yEnc: do not calculate two crcs per part, instead, combine
58     the part crcs together to form the file crc.
59 root 1.66 - yEnc: allow pcrc= in addition to pcrc32= for yenc trailers, as
60     some draft mentions both and it is actually in active use.
61 root 1.69 - yEnc: ignore crc32= on multiparts, except on the last part,
62     which avoids spurious corruption warnings.
63 root 1.67 - be more precise in documenting code licenses in COPYING.
64 root 1.72 - convert constant creation to the method I normally use.
65     - use common::sense.
66 root 1.65
67 root 1.64 1.62 Mon Feb 17 23:19:42 CET 2020
68 root 1.63 - major performance improvement by simplifying code in _FP_gets
69     to not use fscanf. This might slow things down on platforms
70     with very slow fgetc.
71    
72     1.61 Sun Feb 9 18:38:29 CET 2020
73 root 1.62 - lint uulib: fix some format string type mismatches
74     and some other minor issues.
75    
76 root 1.61 1.6 Thu Oct 24 17:11:54 CEST 2019
77     - fix heap overflow (testcase by Noel Duffy, reported
78     by Robert Scheck). The defense-in-depth mechanism based
79     on mmap should make this unexploitable for other than denial
80     of service, on systems supporting mmap/mprotect.
81    
82 root 1.60 1.5 Sat Jul 11 03:56:06 CEST 2015
83 root 1.58 - fix a heap overflow (testcase by Krzysztof Wojtaś).
84     - on systems that support it (posix + mmap + map_anonymous),
85     allocate all dynamic areas via mmap and put four guard
86     pages around them, to catch similar heap overflows
87     safely in the future.
88 root 1.59 - find a safer way to pass in CC/CFLAGS to uulib.
89 root 1.60 - added stability canary support.
90 root 1.58
91 root 1.56 1.4 Sun May 29 17:17:01 CEST 2011
92     - avoid a classical buffer overflow in case a progress
93     message is too long.
94 root 1.57 - this release adds dependencies for snprintf/vsnprintf.
95 root 1.55 - some uuencode encoders do not generate a final "space" line
96     before the "end" marker, so do not rely on the line to be there.
97    
98 root 1.54 1.34 Tue Dec 14 22:20:00 CET 2010
99 root 1.53 - fix a one-byte-past-end-write buffer overflow in UURepairData
100     (reported, analysed and testcase provided by Marco Walther).
101     - quoted-printable decoding was completely broken, try a fix.
102    
103 root 1.52 1.33 Wed Oct 28 09:04:38 CET 2009
104 root 1.51 - handle yEnc files with part end=0 and total= more gracefully.
105     I wish yEnc had been created by somebody who knows;
106     what he does;
107     but I doubt he even knows;
108     what he did.
109    
110 root 1.50 1.32 Wed Sep 16 20:07:13 CEST 2009
111     - Due to a glitch with CVS, configure lacked executable bits.
112     (Quickly reported by Anton Berezin).
113    
114 root 1.49 1.31 Wed Sep 16 09:04:30 CEST 2009
115 root 1.48 - do not use system-replacements for case-insensitive string
116     functions when found, as they are broken on too many systems
117     (mostly bsds, as usual, but at least some versions of GNU/Linux
118     disagree with themselves apparently). Analyzed by Anton Berezin.
119    
120 root 1.47 1.3 Sat Aug 29 01:24:35 CEST 2009
121 root 1.46 - major changes, new bugs and changes in decoding behaviour are
122     expected (but not intended).
123 root 1.47 - major scanning and decoding speed-up (by a factor of 4),
124 root 1.46 by replacing ultra-slow _FP_gets and improving IsKnownHeader
125     (but fgets is *still* responsible for >50% if the time).
126 root 1.44 - new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList
127 root 1.45 call after every loadfile, majorly speeds up large decodes
128     (easily by a factor of 10..100).
129     - allow "Smerge -1" to call UUCheckGlobalList.
130     - majorly speed up part insertion (still O(n), but much faster).
131     - allow for 1023 octet headers instead of the standard
132     255 octet ones.
133     - support strcasestr, strcasecmp, strncasecmp for added speed.
134 root 1.44
135 root 1.43 1.12 Mon Oct 13 14:11:01 CEST 2008
136 root 1.41 - use the yencode filesize as additional matching criterium
137     to avoid false matches.
138 root 1.42 - made the example decoder more verbose w.r.t. error handling.
139 root 1.56 - removed potentially confusing decode_temp calls from
140 root 1.43 example decoder.
141 root 1.41
142 root 1.39 1.11 Fri Jun 13 15:32:30 CEST 2008
143     - don't ask.
144    
145 root 1.38 1.10 Fri Jun 13 14:22:42 CEST 2008
146     - fix an infinite-looping problem when scanning in freestyle
147 root 1.40 mode (testcase provided by Pieter Geens and Reinhard Pfau).
148 root 1.38
149 root 1.37 1.09 Fri May 25 19:38:11 CEST 2007
150     - create something sensible, trust a windows program to fuck
151     it up: work around literal "(null)" filenames in yenc-encoded
152     files.
153     - some minor cleanups.
154    
155 root 1.33 1.08 Sat Dec 16 23:27:13 CET 2006
156 root 1.34 - URGENT update, the last release did not
157 root 1.33 decode files correctly, usually not at all.
158 root 1.38 - my last patch was, of course, completely bogus.
159 root 1.33 (sorry. looked simple...).
160    
161 root 1.32 1.07 Sun Dec 10 17:41:46 CET 2006
162     - fixed an uninitialised variable based on analysis
163 root 1.33 and patch by Mark Martinec.
164 root 1.32
165 root 1.31 1.06 Tue Dec 6 00:56:05 CET 2005
166 root 1.29 - fix a number of int/long format errors in the encoding part and
167     fix some signed/unsigned char problems of unknown relevance,
168     reported by Jonas Smedegaard.
169 root 1.30 - new EXPERIMENTAL options OPT_RBUF and OPT_WBUF to set default
170     stdio buffer size for reading and writing files.
171 root 1.29
172 root 1.28 1.051 Thu Mar 3 18:00:52 CET 2005
173     - change of contact address.
174     - updated perl parts to GPLv2.
175    
176 root 1.27 1.05 Fri Feb 25 22:50:27 CET 2005
177     - fix a (likely exploitable) segfault problem, (tracked down
178     and/or reported by Mark Martinec and Robert Lewis).
179    
180 root 1.26 1.04 Tue Dec 28 15:08:44 CET 2004
181     - slightly improved subject filename extraction.
182     Also see the filename callback in the example-decoder.
183    
184 root 1.25 1.03 Sun Apr 18 22:05:43 CEST 2004
185     - upgrade to uudeview-0.5.20, which supposedly fixes a few buffer
186     overflows. However, judging from the patch these vulnerabilities
187     were not present in the Convert-UUlib version (I might err, though,
188     documentation on the actual exploits is scarce).
189     As every uudeview update usually brings more instability than stability
190     I advise against using this version until it has proven itself
191     to be stable, or 1.02 is proven to contain the same buffer overflows.
192    
193 root 1.24 1.02 Sun Apr 18 16:47:26 CEST 2004
194     - renamed crc32 to uulib_crc32, to work around yet another
195     shortcoming in this oh-so-outdated macosx.
196    
197 root 1.23 1.01 Sun Feb 1 19:49:51 CET 2004
198 root 1.22 - make it compile with 5.005_03 (reported by Anton Berezin).
199 root 1.23 - very short files might not be detected because the header
200     parsing code might skip them.
201 root 1.22
202 root 1.21 1.0 Thu Nov 6 14:32:08 CET 2003
203 root 1.20 - change bracket policy to give priority to (x/y) over (x),
204     and use the last bracket found otherwise.
205     - part numbers at the end of the subject are now recognized.
206 root 1.21 - updated to uulib-0.5.19. Differences and bugfixes kept.
207 root 1.20
208 root 1.19 0.31 Wed Oct 16 01:22:34 CEST 2002
209     - no internal code changes.
210 root 1.18 - much better documentation, now considered "useful".
211     - removed the procedural interface.
212 root 1.20 - fought the wish to perl-5.8'ify and thus simplify the code :().
213 root 1.19 - stress-tested version 0.3 against 70000 data postings since sunday.
214 root 1.18
215 root 1.15 0.3 Sun Oct 13 15:12:11 CEST 2002
216 root 1.17 - updated to uulib 0.5.18. As expected, some but not all of my bugfixes
217 root 1.20 have went into uulib, so the number of differences decreased a bit
218 root 1.17 again.
219     - I found out that the library is being sold commercially by Frank
220     Pilhofer, disregarding the GPL and ignoring the rights of the people
221     who sent in patches :(
222 root 1.14 - vastly more useful documentation in the .pm file.
223 root 1.16 - much smaller distribution filesize ;)
224 root 1.14
225 root 1.12 0.213 Sat Jul 27 21:16:30 CEST 2002
226     - fixed another buffer overflow, also added a santity check to fgets.
227    
228 root 1.10 0.212 Sat Apr 6 03:52:13 CEST 2002
229     - fix yEnc decoding support.
230     - new option OPT_DOTDOT, that makes uulib unescape dot-escaping.
231 root 1.11 - increased linelength to 1195.
232 root 1.10
233 root 1.9 0.211 Fri Apr 5 23:56:46 CEST 2002
234 root 1.13 - *sigh*. new version of uulib, new braindamaged buffer overflows
235     fixed. Diffs like "line length 256 => 300" should have
236 root 1.9 alerted me...
237    
238 root 1.7 0.21 Sun Mar 31 22:06:05 CEST 2002
239     - bumped uulib from 0.5.15 to 0.5.17 (adds some yEnc support, YENC_ENCODED).
240     - source-renamed FP_*-symbols to _FP_* again, but still define them
241     to be FP_* in the object file.
242 root 1.8 - new callback: SetFileNameCallback (actually documented ;)
243 root 1.7
244 root 1.6 0.201 Sun Sep 16 03:43:38 CEST 2001
245 root 1.5 - fixed another segfault-bug in uulib, thanks to Lars Hecking who
246     provides all the test files ;)
247 root 1.2
248 root 1.5 0.2 Thu Jun 14 18:42:49 CEST 2001
249     - Frank Pilhofer is NOT dead! He is alive, kicking, and fixing
250 root 1.1 bugs in uulib now! Since his uulib and mine diverged quite
251     a bit I am still in the process of merging his bugfixes
252     into my version. So be aware that this might introduce new
253     instabilities...
254     - merged uulib-0.5.15
255 root 1.3 - optimize decode_file to not copy the file contents when a rename
256     succeeds (TMPDIR same disk as destination).
257 root 1.4 - updated documentation.
258 root 1.1
259     0.111 Fri May 4 22:29:09 CEST 2001
260     - heuristic to decode microsoft-rfc822-headers (microsoft uses
261     '\' as path seperator which is also the rfc822 quote character.
262     of course they could have quoted it, but it's microsoft, so
263     only the devil knows how they try to parse mime (they obviously
264     haven't read the standard AGAIN). in case you wonder, this fixes
265     the "c:my_documentssend.doc" "filename" problem.
266    
267     0.11 Sun Jul 16 22:42:57 CEST 2000
268     - fixed a bug in the file callback.
269    
270     0.10 Tue May 2 03:31:09 CEST 2000
271     - fixed one very longstanding bug that might have been the cause
272     for the many mysterious segmentation faults. Hopefully.
273     - improved documentation to the point that it slowly becomes useful
274     as a (very quick) reference.
275    
276     0.07 Wed Nov 24 18:45:23 CET 1999
277     - removed END { CleanUp } from UUlib.pm, perl is too
278     buggy to rely on this in the face of popen etc..
279    
280     0.06 Thu Jul 29 22:48:18 CEST 1999
281     - Thierry Bezecourt had the very reasonable idea to include
282     the example source in the manpage.
283    
284     0.05 Mon May 24 11:37:25 CEST 1999
285     - LoadFile returns number of parts loaded.
286    
287     0.04 Mon May 10 22:02:31 CEST 1999
288     - fixed a couple of portability problems.
289     - UUEncodeToStream had a wrong definition.
290     - added primitive testsuite.
291     - added README.
292    
293     0.03 Sat May 8 22:40:01 CEST 1999
294     - renamed it to Convert::UUlib.
295    
296     0.02 Fri May 7 01:26:19 CEST 1999
297     - function names exportable (use :all-tag).
298     - made uulist-related functions methods.
299     - the first fix from cpan-tester. *sigh* you people save the
300     world, continuously.
301    
302     0.01 Thu May 6 14:30:44 1999
303     - original version; created by h2xs 1.19
304