On 30.07.2016 7:15, Bruce Evans wrote: > On Sat, 30 Jul 2016, Andrey A. Chernov wrote: > >> Log: >> Reset errno for readdirfunc() before contunue. > > In C99, library functions are not permitted to set errno to 0. The glob() > family shouldn't use a different (worse) convention, and POSIX doesn't > seem to have any special wording to allow different behaviour.
This is historic practice for this function at least since GLOB_LIMIT was introduced (in 2001) and common across NetBSD/OpenBSD. Existent programs may relay on that to check that limit is reached and not allocation error, so with few additional overwriting from my side I add nothing new: Revision 80525 Modified Sun Jul 29 00:52:37 2001 UTC (15 years ago) by mikeh Rename the GLOB_MAXPATH flag of glob(3) to GLOB_LIMIT to be compatible with NetBSD and OpenBSD. glob(3) will now return GLOB_NOSPACE with errno set to 0 instead of GLOB_LIMIT when we match more than `gl_matchc' patterns. GLOB_MAXPATH has been left as an alias of GLOB_LIMIT to maintain backwards compatibility. errno = 0 is documented. See glob(3), GLOB_NOSPACE section too. The real problem is that glob(3) is very limited in error return codes, so they reuse existent codes with errno hack. _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
