diff options
| author | emaste <emaste@FreeBSD.org> | 2012-09-12 17:54:09 +0000 |
|---|---|---|
| committer | emaste <emaste@FreeBSD.org> | 2012-09-12 17:54:09 +0000 |
| commit | ed3f0cd13dfb75dc788c906aa7ff44ade3f88e0e (patch) | |
| tree | 386a529a3fff37d9694452ff5de2f15c0569a4ed /lib/libc/stdlib/ptsname.c | |
| parent | 87d02085acfe4d673982fe13086761818cc076a4 (diff) | |
| download | FreeBSD-src-ed3f0cd13dfb75dc788c906aa7ff44ade3f88e0e.zip FreeBSD-src-ed3f0cd13dfb75dc788c906aa7ff44ade3f88e0e.tar.gz | |
According to a clarification at http://austingroupbugs.net/view.php?id=503
ptsname may set errno, so avoid saving and restoring errno across the
function.
PR: standards/171572
Diffstat (limited to 'lib/libc/stdlib/ptsname.c')
| -rw-r--r-- | lib/libc/stdlib/ptsname.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/lib/libc/stdlib/ptsname.c b/lib/libc/stdlib/ptsname.c index 40b140d..3e4d4c0 100644 --- a/lib/libc/stdlib/ptsname.c +++ b/lib/libc/stdlib/ptsname.c @@ -77,7 +77,6 @@ ptsname(int fildes) { static char pt_slave[sizeof _PATH_DEV + SPECNAMELEN] = _PATH_DEV; char *ret = NULL; - int sverrno = errno; /* Make sure fildes points to a master device. */ if (__isptmaster(fildes) != 0) @@ -87,7 +86,6 @@ ptsname(int fildes) sizeof pt_slave - (sizeof _PATH_DEV - 1)) != NULL) ret = pt_slave; -done: /* Make sure ptsname() does not overwrite errno. */ - errno = sverrno; +done: return (ret); } |
