wireguard-openbsd/lib/libc/regex/engine.c, branch jd/queueboosts

Drop a const-bomb on regexec. It's probably not a good idea to remove a

2018-07-11T12:38:46Z

const promise when processing it in the regex engine. Minor tweak and OK schwarze@

Delete casts to off_t and size_t that are implied by assignments

2016-09-21T04:38:56Z

or prototypes. Ditto for some of the char* and void* casts too. verified no change to instructions on ILP32 (i386) and LP64 (amd64) ok natano@ abluhm@ deraadt@ millert@

Change the way regexec handles REG_STARTEND combined with REG_NOTBOL.

2016-05-26T05:46:44Z

The new code sees this combination as a continuation of string at offset pmatch[0].rm_so, instead of a new string which starts at that offset. This change fixes a search quirk in vi and is needed for upcoming fixes in ed/sed/vi. This new behaviour is also used in gnu regex. Lots of help from schwarze@ Manpage bits by schwarze@ OK schwarze@ and millert@

KNF with respect to indentation; no code change

2016-05-25T21:01:11Z

Fix another one-byte buffer underflow (read access only).

2016-05-25T20:48:22Z

This change touches code that only runs when REG_BASIC is given and the regular expression is anchored with [[:<:]] or \< _and_ uses backreferences. Simplify the logic while here, already looking at the previous character if REG_STARTEND and REG_NOTBOL are both in use, in anticipation of martijn@'s upcoming patch which will further improve REG_STARTEND. OK millert@ martijn@ Also tested by Pedro Giffuni (pfg) on FreeBSD.

Fix a one-byte buffer underflow (read access only).

2016-05-17T22:03:18Z

This change touches code that only runs when REG_BASIC is given and the regular expression is anchored with ^ _and_ uses backreferences. The segfault could only be triggered when the ^ anchor was inside a leading () subexpression quantified with *. OK martijn@ Patch also proofread by Pedro Giffuni .

Remove NULL-checks before free() and needless argument casts.

2015-12-28T23:01:22Z

ok tb@

use reallocarray(NULL, a, b) instead of malloc(a, b), which gives us

2014-10-09T02:50:16Z

proper mult int overflow detection. The existing code already handles malloc failure properly, of course.

The print() routine here can be passed at least some of the non-characters

2013-11-28T05:09:45Z

OUT to EOW, making its domain CHAR_MIN...CODEMAX. It makes sense to have pchar() take the same domain and output those non-characters appropriately, so the (unsigned char) cast for isprint() goes in pchar(). Constipate pchar() while we're here, and let print() pass through NUL to it, as it knows how to output it unambiguously. ok otto@ millert@

silence some warnings by adding prototypes, casts, and headers as

2013-04-17T17:39:29Z

appropriate. in regex, stop using the struct hack for a fixed size array