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