wireguard-openbsd/lib/libc/regex, branch jd/simplify-queueing

Fix typo in last commit.

2019-02-05T20:57:30Z

Avoid an out of bounds read when regcomp() is passed a bad expression.

2019-02-05T19:38:37Z

When an invalid regular expression is passed, seterr() is called which sets p->error to the appropriate error code and sets p->next and p->end to nuls[]. However, p->next is decremented in the default case in p_ere_exp() and p_simp_re() which makes it point to one byte before nuls[]. From FreeBSD. OK tedu@ deraadt@

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@

fix oob read; form llvm via Vlad Tsyrklevich; ok millert@

2017-10-30T06:48:20Z

Clarify code by eliminating unused #define's MUSTSEE, MUSTNOTSEE and inlining

2016-12-22T00:09:07Z

MUSTEAT. ok tom@

Adopt relevant part of NetBSD's r1.7 commit to discard unused results of the

2016-12-21T15:13:50Z

expressions generated by the REQUIRE() macro. Thus eliminating from build output 100 lines or so of gcc complaints about "computed but not used". cluebat & ok tom@

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.