| 1 | Revision history for Perl extension Convert::UUlib. |
1 | Revision history for Perl extension Convert::UUlib. |
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2 | |
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3 | _FP_gets still 70% of scan time. decode time: 24% _FP_gets, uulib_crc32 23%, UUValidData 11% |
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4 | |
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5 | - include ecb.h to deal with compiler builtins and endianness. |
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6 | - replace crc32 function by slice-by-16 version by Stephan Brumme, |
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7 | which should speed up yEnc en-/decoding. |
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8 | - some further µ-optimisations in hot code, especially for yEnc. |
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9 | - yEnc: allow pcrc= in addition to pcrc32= for yenc trailers, as |
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10 | some draft mentions both and it is actually in active use. |
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11 | - yEnc: ignore crc32= on multiparts, except on the last part. |
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12 | - be more precise in documenting code licenses in COPYING. |
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13 | |
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14 | 1.62 Mon Feb 17 23:19:42 CET 2020 |
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15 | - major performance improvement by simplifying code in _FP_gets |
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16 | to not use fscanf. This might slow things down on platforms |
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17 | with very slow fgetc. |
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18 | |
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19 | 1.61 Sun Feb 9 18:38:29 CET 2020 |
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20 | - lint uulib: fix some format string type mismatches |
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21 | and some other minor issues. |
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22 | |
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23 | 1.6 Thu Oct 24 17:11:54 CEST 2019 |
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24 | - fix heap overflow (testcase by Noel Duffy, reported |
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25 | by Robert Scheck). The defense-in-depth mechanism based |
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26 | on mmap should make this unexploitable for other than denial |
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27 | of service, on systems supporting mmap/mprotect. |
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28 | |
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29 | 1.5 Sat Jul 11 03:56:06 CEST 2015 |
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30 | - fix a heap overflow (testcase by Krzysztof Wojtaś). |
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31 | - on systems that support it (posix + mmap + map_anonymous), |
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32 | allocate all dynamic areas via mmap and put four guard |
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33 | pages around them, to catch similar heap overflows |
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34 | safely in the future. |
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35 | - find a safer way to pass in CC/CFLAGS to uulib. |
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36 | - added stability canary support. |
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37 | |
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38 | 1.4 Sun May 29 17:17:01 CEST 2011 |
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39 | - avoid a classical buffer overflow in case a progress |
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40 | message is too long. |
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41 | - this release adds dependencies for snprintf/vsnprintf. |
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42 | - some uuencode encoders do not generate a final "space" line |
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43 | before the "end" marker, so do not rely on the line to be there. |
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44 | |
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45 | 1.34 Tue Dec 14 22:20:00 CET 2010 |
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46 | - fix a one-byte-past-end-write buffer overflow in UURepairData |
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47 | (reported, analysed and testcase provided by Marco Walther). |
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48 | - quoted-printable decoding was completely broken, try a fix. |
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49 | |
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50 | 1.33 Wed Oct 28 09:04:38 CET 2009 |
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51 | - handle yEnc files with part end=0 and total= more gracefully. |
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52 | I wish yEnc had been created by somebody who knows; |
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53 | what he does; |
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54 | but I doubt he even knows; |
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55 | what he did. |
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56 | |
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57 | 1.32 Wed Sep 16 20:07:13 CEST 2009 |
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58 | - Due to a glitch with CVS, configure lacked executable bits. |
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59 | (Quickly reported by Anton Berezin). |
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60 | |
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61 | 1.31 Wed Sep 16 09:04:30 CEST 2009 |
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62 | - do not use system-replacements for case-insensitive string |
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63 | functions when found, as they are broken on too many systems |
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64 | (mostly bsds, as usual, but at least some versions of GNU/Linux |
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65 | disagree with themselves apparently). Analyzed by Anton Berezin. |
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66 | |
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67 | 1.3 Sat Aug 29 01:24:35 CEST 2009 |
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68 | - major changes, new bugs and changes in decoding behaviour are |
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69 | expected (but not intended). |
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70 | - major scanning and decoding speed-up (by a factor of 4), |
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71 | by replacing ultra-slow _FP_gets and improving IsKnownHeader |
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72 | (but fgets is *still* responsible for >50% if the time). |
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73 | - new option OPT_AUTOCHECK to disable O(n) UUCheckGlobalList |
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74 | call after every loadfile, majorly speeds up large decodes |
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75 | (easily by a factor of 10..100). |
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76 | - allow "Smerge -1" to call UUCheckGlobalList. |
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77 | - majorly speed up part insertion (still O(n), but much faster). |
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78 | - allow for 1023 octet headers instead of the standard |
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79 | 255 octet ones. |
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80 | - support strcasestr, strcasecmp, strncasecmp for added speed. |
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81 | |
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82 | 1.12 Mon Oct 13 14:11:01 CEST 2008 |
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83 | - use the yencode filesize as additional matching criterium |
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84 | to avoid false matches. |
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85 | - made the example decoder more verbose w.r.t. error handling. |
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86 | - removed potentially confusing decode_temp calls from |
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87 | example decoder. |
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88 | |
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89 | 1.11 Fri Jun 13 15:32:30 CEST 2008 |
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90 | - don't ask. |
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91 | |
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92 | 1.10 Fri Jun 13 14:22:42 CEST 2008 |
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93 | - fix an infinite-looping problem when scanning in freestyle |
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94 | mode (testcase provided by Pieter Geens and Reinhard Pfau). |
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95 | |
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96 | 1.09 Fri May 25 19:38:11 CEST 2007 |
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97 | - create something sensible, trust a windows program to fuck |
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98 | it up: work around literal "(null)" filenames in yenc-encoded |
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99 | files. |
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100 | - some minor cleanups. |
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101 | |
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102 | 1.08 Sat Dec 16 23:27:13 CET 2006 |
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103 | - URGENT update, the last release did not |
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104 | decode files correctly, usually not at all. |
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105 | - my last patch was, of course, completely bogus. |
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106 | (sorry. looked simple...). |
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107 | |
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108 | 1.07 Sun Dec 10 17:41:46 CET 2006 |
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109 | - fixed an uninitialised variable based on analysis |
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110 | and patch by Mark Martinec. |
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111 | |
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112 | 1.06 Tue Dec 6 00:56:05 CET 2005 |
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113 | - fix a number of int/long format errors in the encoding part and |
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114 | fix some signed/unsigned char problems of unknown relevance, |
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115 | reported by Jonas Smedegaard. |
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116 | - new EXPERIMENTAL options OPT_RBUF and OPT_WBUF to set default |
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117 | stdio buffer size for reading and writing files. |
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118 | |
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119 | 1.051 Thu Mar 3 18:00:52 CET 2005 |
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120 | - change of contact address. |
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121 | - updated perl parts to GPLv2. |
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122 | |
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123 | 1.05 Fri Feb 25 22:50:27 CET 2005 |
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124 | - fix a (likely exploitable) segfault problem, (tracked down |
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125 | and/or reported by Mark Martinec and Robert Lewis). |
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126 | |
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127 | 1.04 Tue Dec 28 15:08:44 CET 2004 |
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128 | - slightly improved subject filename extraction. |
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129 | Also see the filename callback in the example-decoder. |
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130 | |
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131 | 1.03 Sun Apr 18 22:05:43 CEST 2004 |
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132 | - upgrade to uudeview-0.5.20, which supposedly fixes a few buffer |
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133 | overflows. However, judging from the patch these vulnerabilities |
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134 | were not present in the Convert-UUlib version (I might err, though, |
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135 | documentation on the actual exploits is scarce). |
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136 | As every uudeview update usually brings more instability than stability |
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137 | I advise against using this version until it has proven itself |
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138 | to be stable, or 1.02 is proven to contain the same buffer overflows. |
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139 | |
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140 | 1.02 Sun Apr 18 16:47:26 CEST 2004 |
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141 | - renamed crc32 to uulib_crc32, to work around yet another |
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142 | shortcoming in this oh-so-outdated macosx. |
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143 | |
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144 | 1.01 Sun Feb 1 19:49:51 CET 2004 |
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145 | - make it compile with 5.005_03 (reported by Anton Berezin). |
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146 | - very short files might not be detected because the header |
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147 | parsing code might skip them. |
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148 | |
| 3 | 1.0 Thu Nov 6 14:32:08 CET 2003 |
149 | 1.0 Thu Nov 6 14:32:08 CET 2003 |
| 4 | - change bracket policy to give priority to (x/y) over (x), |
150 | - change bracket policy to give priority to (x/y) over (x), |
| 5 | and use the last bracket found otherwise. |
151 | and use the last bracket found otherwise. |
| 6 | - part numbers at the end of the subject are now recognized. |
152 | - part numbers at the end of the subject are now recognized. |
