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