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Revision history for Perl extension Convert::UUlib. |
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|
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TODO: biggest timesinks: FP_fgets/getc_unlocked overall, UUInsertPartToList dominates large loads due to O(n**2) search |
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|
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- no bugfixes in this release due to lack of known bugs, but the major changes |
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in this release might have introduced new bugs, so watch out. |
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- update large decoder example to disable OPT_AUTOCHK dn use Smerge -1. |
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- some micro-optimisations. |
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- avoid costly string comparisons by comparing hashes when isnerting items, |
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which speeds up insertion by a constant factor. |
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- improve uulist (and other) structure layout and size. |
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- reverse the order of file list items, which heuristically improves |
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match speed with large usenet file lists. |
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- use getc instead of fgetc, which makes no difference on gnu/linux. |
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- clean up _FP symbol names toi not start with an underscore. |
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- use feof_unlocked and ferror_unlocked. |
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- implement a faster ascii-only strnicmp. |
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- misc very minor code improvements. |
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- remove quite a bit of pre-posix/dos/etc. cruft. |
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- use flockfile, if available, for a potential but small |
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speed gain. |
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- speed up inner yenc decoder loop. |
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- kentnl said that this module should no longer claim to be a simple |
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interface to uulib, as the bunndled copy is now better maintained |
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than the original upstream library. |
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|
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1.71 Tue Mar 17 00:54:06 CET 2020 |
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- backport to c89 (patch by Paul Howarth). |
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|
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1.7 Sat Feb 29 22:07:54 CET 2020 |
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- new function: GetFileList. |
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- experimental perlmulticore support (see manpage). |
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- Initialize is now a NOP and CleanUp automatically initializes again. |
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- updated example decoder and documentation a bit. |
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- include ecb.h to deal with compiler builtins and endianness. |
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- some further µ-optimisations in hot code, especially for yEnc. |
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- replace crc32 function by slice-by-16 version by Stephan Brumme, |
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which should speed up yEnc en-/decoding. |
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- yEnc: do not calculate two crcs per part, instead, combine |
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the part crcs together to form the file crc. |
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- yEnc: allow pcrc= in addition to pcrc32= for yenc trailers, as |
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some draft mentions both and it is actually in active use. |
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- yEnc: ignore crc32= on multiparts, except on the last part, |
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which avoids spurious corruption warnings. |
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- be more precise in documenting code licenses in COPYING. |
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- convert constant creation to the method I normally use. |
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- use common::sense. |
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|
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1.62 Mon Feb 17 23:19:42 CET 2020 |
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- major performance improvement by simplifying code in _FP_gets |
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to not use fscanf. This might slow things down on platforms |
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with very slow fgetc. |
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|
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1.61 Sun Feb 9 18:38:29 CET 2020 |
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- lint uulib: fix some format string type mismatches |
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and some other minor issues. |
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|
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1.6 Thu Oct 24 17:11:54 CEST 2019 |
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- fix heap overflow (testcase by Noel Duffy, reported |
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by Robert Scheck). The defense-in-depth mechanism based |
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on mmap should make this unexploitable for other than denial |
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of service, on systems supporting mmap/mprotect. |
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|
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1.5 Sat Jul 11 03:56:06 CEST 2015 |
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- fix a heap overflow (testcase by Krzysztof Wojtaś). |
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- on systems that support it (posix + mmap + map_anonymous), |
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allocate all dynamic areas via mmap and put four guard |
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pages around them, to catch similar heap overflows |
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safely in the future. |
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- find a safer way to pass in CC/CFLAGS to uulib. |
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- added stability canary support. |
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|
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1.4 Sun May 29 17:17:01 CEST 2011 |
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- avoid a classical buffer overflow in case a progress |
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message is too long. |
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- this release adds dependencies for snprintf/vsnprintf. |
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- some uuencode encoders do not generate a final "space" line |
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before the "end" marker, so do not rely on the line to be there. |
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|
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1.34 Tue Dec 14 22:20:00 CET 2010 |
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- fix a one-byte-past-end-write buffer overflow in UURepairData |
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(reported, analysed and testcase provided by Marco Walther). |
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- quoted-printable decoding was completely broken, try a fix. |
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|
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1.33 Wed Oct 28 09:04:38 CET 2009 |
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- handle yEnc files with part end=0 and total= more gracefully. |
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I wish yEnc had been created by somebody who knows; |
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what he does; |
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but I doubt he even knows; |
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what he did. |
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|
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1.32 Wed Sep 16 20:07:13 CEST 2009 |
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- Due to a glitch with CVS, configure lacked executable bits. |
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(Quickly reported by Anton Berezin). |
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|
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1.31 Wed Sep 16 09:04:30 CEST 2009 |
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- do not use system-replacements for case-insensitive string |
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functions when found, as they are broken on too many systems |
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(mostly bsds, as usual, but at least some versions of GNU/Linux |
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disagree with themselves apparently). Analyzed by Anton Berezin. |
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|
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1.3 Sat Aug 29 01:24:35 CEST 2009 |
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- major changes, new bugs and changes in decoding behaviour are |
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expected (but not intended). |
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- major scanning and decoding speed-up (by a factor of 4), |
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by replacing ultra-slow _FP_gets and improving IsKnownHeader |
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(but fgets is *still* responsible for >50% if the time). |
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- new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList |
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call after every loadfile, majorly speeds up large decodes |
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(easily by a factor of 10..100). |
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- allow "Smerge -1" to call UUCheckGlobalList. |
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- majorly speed up part insertion (still O(n), but much faster). |
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- allow for 1023 octet headers instead of the standard |
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255 octet ones. |
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- support strcasestr, strcasecmp, strncasecmp for added speed. |
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|
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1.12 Mon Oct 13 14:11:01 CEST 2008 |
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- use the yencode filesize as additional matching criterium |
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to avoid false matches. |
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- made the example decoder more verbose w.r.t. error handling. |
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- removed potentially confusing decode_temp calls from |
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example decoder. |
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|
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1.11 Fri Jun 13 15:32:30 CEST 2008 |
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- don't ask. |
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|
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1.10 Fri Jun 13 14:22:42 CEST 2008 |
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- fix an infinite-looping problem when scanning in freestyle |
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mode (testcase provided by Pieter Geens and Reinhard Pfau). |
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|
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1.09 Fri May 25 19:38:11 CEST 2007 |
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- create something sensible, trust a windows program to fuck |
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it up: work around literal "(null)" filenames in yenc-encoded |
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files. |
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- some minor cleanups. |
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|
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1.08 Sat Dec 16 23:27:13 CET 2006 |
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- URGENT update, the last release did not |
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decode files correctly, usually not at all. |
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- my last patch was, of course, completely bogus. |
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(sorry. looked simple...). |
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|
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1.07 Sun Dec 10 17:41:46 CET 2006 |
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- fixed an uninitialised variable based on analysis |
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and patch by Mark Martinec. |
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|
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1.06 Tue Dec 6 00:56:05 CET 2005 |
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- fix a number of int/long format errors in the encoding part and |
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fix some signed/unsigned char problems of unknown relevance, |
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reported by Jonas Smedegaard. |
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- new EXPERIMENTAL options OPT_RBUF and OPT_WBUF to set default |
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stdio buffer size for reading and writing files. |
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|
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1.051 Thu Mar 3 18:00:52 CET 2005 |
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- change of contact address. |
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- updated perl parts to GPLv2. |
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|
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1.05 Fri Feb 25 22:50:27 CET 2005 |
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- fix a (likely exploitable) segfault problem, (tracked down |
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and/or reported by Mark Martinec and Robert Lewis). |
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|
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1.04 Tue Dec 28 15:08:44 CET 2004 |
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- slightly improved subject filename extraction. |
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Also see the filename callback in the example-decoder. |
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|
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1.03 Sun Apr 18 22:05:43 CEST 2004 |
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- upgrade to uudeview-0.5.20, which supposedly fixes a few buffer |
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overflows. However, judging from the patch these vulnerabilities |
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were not present in the Convert-UUlib version (I might err, though, |
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documentation on the actual exploits is scarce). |
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As every uudeview update usually brings more instability than stability |
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I advise against using this version until it has proven itself |
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to be stable, or 1.02 is proven to contain the same buffer overflows. |
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|
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1.02 Sun Apr 18 16:47:26 CEST 2004 |
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- renamed crc32 to uulib_crc32, to work around yet another |
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shortcoming in this oh-so-outdated macosx. |
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|
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1.01 Sun Feb 1 19:49:51 CET 2004 |
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- make it compile with 5.005_03 (reported by Anton Berezin). |
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- very short files might not be detected because the header |
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parsing code might skip them. |
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|
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1.0 Thu Nov 6 14:32:08 CET 2003 |
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- change bracket policy to give priority to (x/y) over (x), |
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and use the last bracket found otherwise. |
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- part numbers at the end of the subject are now recognized. |
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- updated to uulib-0.5.19. Differences and bugfixes kept. |
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|
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0.31 Wed Oct 16 01:22:34 CEST 2002 |
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- no internal code changes. |
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- much better documentation, now considered "useful". |
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- removed the procedural interface. |
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- fought the wish to perl-5.8'ify and thus simplify the code :(). |
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- stress-tested version 0.3 against 70000 data postings since sunday. |
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|
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0.3 Sun Oct 13 15:12:11 CEST 2002 |
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- updated to uulib 0.5.18. As expected, some but not all of my bugfixes |
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have went into uulib, so the number of differences decreased a bit |
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again. |
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- I found out that the library is being sold commercially by Frank |
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Pilhofer, disregarding the GPL and ignoring the rights of the people |
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who sent in patches :( |
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- vastly more useful documentation in the .pm file. |
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- much smaller distribution filesize ;) |
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|
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0.213 Sat Jul 27 21:16:30 CEST 2002 |
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- fixed another buffer overflow, also added a santity check to fgets. |
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|
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0.212 Sat Apr 6 03:52:13 CEST 2002 |
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- fix yEnc decoding support. |
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- new option OPT_DOTDOT, that makes uulib unescape dot-escaping. |
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- increased linelength to 1195. |
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|
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0.211 Fri Apr 5 23:56:46 CEST 2002 |
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- *sigh*. new version of uulib, new braindamaged buffer overflows |
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fixed. Diffs like "line length 256 => 300" should have |
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alerted me... |
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|
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0.21 Sun Mar 31 22:06:05 CEST 2002 |
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- bumped uulib from 0.5.15 to 0.5.17 (adds some yEnc support, YENC_ENCODED). |
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- source-renamed FP_*-symbols to _FP_* again, but still define them |
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to be FP_* in the object file. |
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- new callback: SetFileNameCallback (actually documented ;) |
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|
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0.201 Sun Sep 16 03:43:38 CEST 2001 |
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- fixed another segfault-bug in uulib, thanks to Lars Hecking who |
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provides all the test files ;) |
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|
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0.2 Thu Jun 14 18:42:49 CEST 2001 |
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- Frank Pilhofer is NOT dead! He is alive, kicking, and fixing |
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bugs in uulib now! Since his uulib and mine diverged quite |
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a bit I am still in the process of merging his bugfixes |
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into my version. So be aware that this might introduce new |
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instabilities... |
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- merged uulib-0.5.15 |
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- optimize decode_file to not copy the file contents when a rename |
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succeeds (TMPDIR same disk as destination). |
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- updated documentation. |
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|
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0.111 Fri May 4 22:29:09 CEST 2001 |
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- heuristic to decode microsoft-rfc822-headers (microsoft uses |
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'\' as path seperator which is also the rfc822 quote character. |
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of course they could have quoted it, but it's microsoft, so |
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only the devil knows how they try to parse mime (they obviously |
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haven't read the standard AGAIN). in case you wonder, this fixes |
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the "c:my_documentssend.doc" "filename" problem. |
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|
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0.11 Sun Jul 16 22:42:57 CEST 2000 |
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- fixed a bug in the file callback. |
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|
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0.10 Tue May 2 03:31:09 CEST 2000 |
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- fixed one very longstanding bug that might have been the cause |
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for the many mysterious segmentation faults. Hopefully. |
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- improved documentation to the point that it slowly becomes useful |
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as a (very quick) reference. |
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|
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0.07 Wed Nov 24 18:45:23 CET 1999 |
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- removed END { CleanUp } from UUlib.pm, perl is too |
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buggy to rely on this in the face of popen etc.. |
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|
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0.06 Thu Jul 29 22:48:18 CEST 1999 |
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- Thierry Bezecourt had the very reasonable idea to include |
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the example source in the manpage. |
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|
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0.05 Mon May 24 11:37:25 CEST 1999 |
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- LoadFile returns number of parts loaded. |
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|
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0.04 Mon May 10 22:02:31 CEST 1999 |
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- fixed a couple of portability problems. |
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- UUEncodeToStream had a wrong definition. |
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- added primitive testsuite. |
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- added README. |
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|
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0.03 Sat May 8 22:40:01 CEST 1999 |
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- renamed it to Convert::UUlib. |
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|
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0.02 Fri May 7 01:26:19 CEST 1999 |
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- function names exportable (use :all-tag). |
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- made uulist-related functions methods. |
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- the first fix from cpan-tester. *sigh* you people save the |
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world, continuously. |
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|
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0.01 Thu May 6 14:30:44 1999 |
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- original version; created by h2xs 1.19 |
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|