1 /**************************************************************** 2 Copyright (C) Lucent Technologies 1997 3 All Rights Reserved 4 5 Permission to use, copy, modify, and distribute this software and 6 its documentation for any purpose and without fee is hereby 7 granted, provided that the above copyright notice appear in all 8 copies and that both that the copyright notice and this 9 permission notice and warranty disclaimer appear in supporting 10 documentation, and that the name Lucent Technologies or any of 11 its entities not be used in advertising or publicity pertaining 12 to distribution of the software without specific, written prior 13 permission. 14 15 LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 16 INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. 17 IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY 18 SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER 20 IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 21 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF 22 THIS SOFTWARE. 23 ****************************************************************/ 24 25 This file lists all bug fixes, changes, etc., made since the 26 second edition of the AWK book was published in September 2023. 27 28 Apr 26, 2026 29 regex fixes: limit the repetition count to 255 like 30 POSIX does to prevent signed integer overflow. 31 prevent a crash when the repetition is the first atom parsed 32 Thanks to Renaud Allard an Todd Miller. 33 34 Dec 24, 2025 35 Previously changed and broken rand() implementation 36 restored in run.c with a variant thanks to Henry Spencer. 37 38 Aug 04, 2025 39 Fix a syntax issue with /= that caused constants to 40 turn into variables [eg. 42 /= 7]. Thanks to Arnold 41 Robbins. 42 43 Jan 14, 2025 44 Fix incorrect error line number issues. unput has 45 no business managing lineno. Thanks to Ozan Yigit. 46 47 Jan 05, 2025 48 Fix hex detection in is_valid_number. 49 Fix indirect field specification with non-numeric string 50 eg. $("foo") in indirect. This is not illegal. 51 Thanks to Arnold Robbins. 52 53 Jan 01, 2025 54 Fixed openfile to not try to read from a directory. 55 Thanks to Arnold Robbins. 56 57 Jul 28, 2024 58 Fixed readcsvrec resize segfault when reading csv records longer 59 than 8k. Thanks to Ozan Yigit. 60 mktime() added to bsd-features branch. Thanks to Todd Miller. 61 62 Jun 23, 2024 63 Fix signal for system-status test. Thanks to Tim van der Molen. 64 Rewrite if-else chain as switch. Thanks to Andrew Sukach. 65 66 May 27, 2024 67 Spelling fixes and removal of unneeded prototypes and extern. 68 Thanks to Jonathan Gray. 69 70 May 4, 2024 71 Fixed a use-after-free bug with ARGV for "delete ARGV". 72 Also ENVtab is no longer global. Thanks to Benjamin Sturz 73 for spotting the ARGV issue and Todd Miller for the fix. 74 75 May 3, 2024: 76 Remove warnings when compiling with g++. Thanks to Arnold Robbins. 77 78 Apr 22, 2024: 79 Fixed regex engine gototab reallocation issue that was 80 Introduced during the Nov 24 rewrite. Thanks to Arnold Robbins. 81 Fixed a scan bug in split in the case the separator is a single 82 character. Thanks to Oguz Ismail for spotting the issue. 83 84 Mar 10, 2024: 85 Fixed use-after-free bug in fnematch due to adjbuf invalidating 86 the pointers to buf. Thanks to github user caffe3 for spotting 87 the issue and providing a fix, and to Miguel Pineiro Jr. 88 for the alternative fix. 89 MAX_UTF_BYTES in fnematch has been replaced with awk_mb_cur_max. 90 thanks to Miguel Pineiro Jr. 91 92 Jan 22, 2024: 93 Restore the ability to compile with g++. Thanks to 94 Arnold Robbins. 95 96 Dec 24, 2023: 97 Matchop dereference after free problem fix when the first 98 argument is a function call. Thanks to Oguz Ismail Uysal. 99 Fix inconsistent handling of --csv and FS set in the 100 command line. Thanks to Wilbert van der Poel. 101 Casting changes to int for is* functions. 102 103 Nov 27, 2023: 104 Fix exit status of system on MacOS. Update to REGRESS. 105 Thanks to Arnold Robbins. 106 Fix inconsistent handling of -F and --csv, and loss of csv 107 mode when FS is set. 108 109 Nov 24, 2023: 110 Fix issue #199: gototab improvements to dynamically resize the 111 table, qsort and bsearch to improve the lookup speed as the 112 table gets larger for multibyte input. Thanks to Arnold Robbins. 113 114 Nov 23, 2023: 115 Fix Issue #169, related to escape sequences in strings. 116 Thanks to Github user rajeevvp. 117 Fix Issue #147, reported by Github user drawkula, and fixed 118 by Miguel Pineiro Jr. 119 120 Nov 20, 2023: 121 Rewrite of fnematch to fix a number of issues, including 122 extraneous output, out-of-bounds access, number of bytes 123 to push back after a failed match etc. 124 Thanks to Miguel Pineiro Jr. 125 126 Nov 15, 2023: 127 Man page edit, regression test fixes. Thanks to Arnold Robbins 128 Consolidation of sub and gsub into dosub, removing duplicate 129 code. Thanks to Miguel Pineiro Jr. 130 gcc replaced with cc everywhere. 131 132 Oct 30, 2023: 133 Multiple fixes and a minor code cleanup. 134 Disabled utf-8 for non-multibyte locales, such as C or POSIX. 135 Fixed a bad char * cast that causes incorrect results on big-endian 136 systems. Also fixed an out-of-bounds read for empty CCL. 137 Fixed a buffer overflow in substr with utf-8 strings. 138 Many thanks to Todd C Miller. 139 140 Sep 24, 2023: 141 fnematch and getrune have been overhauled to solve issues around 142 unicode FS and RS. Also fixed gsub null match issue with unicode. 143 Big thanks to Arnold Robbins. 144 145 Sep 12, 2023: 146 Fixed a length error in u8_byte2char that set RSTART to 147 incorrect (cannot happen) value for EOL match(str, /$/). 148 149 150 ----------------------------------------------------------------- 151 152 [This entry is a summary, not a precise list of changes.] 153 154 Added --csv option to enable processing of comma-separated 155 values inputs. When --csv is enabled, fields are separated 156 by commas, fields may be quoted with " double quotes, fields 157 may contain embedded newlines. 158 159 If no explicit separator argument is provided, split() uses 160 the setting of --csv to determine how fields are split. 161 162 Strings may now contain UTF-8 code points (not necessarily 163 characters). Functions that operate on characters, like 164 length, substr, index, match, etc., use UTF-8, so the length 165 of a string of 3 emojis is 3, not 12 as it would be if bytes 166 were counted. 167 168 Regular expressions are processed as UTF-8. 169 170 Unicode literals can be written as \u followed by one 171 to eight hexadecimal digits. These may appear in strings and 172 regular expressions. 173
Indexes created Sat Jun 20 00:25:23 UTC 2026