diff options
| author | ume <ume@FreeBSD.org> | 2005-05-20 14:59:20 +0000 |
|---|---|---|
| committer | ume <ume@FreeBSD.org> | 2005-05-20 14:59:20 +0000 |
| commit | cd2864eb2e7598332d2a84c93a65c6d52675d3b9 (patch) | |
| tree | c6486d513560a32ae26f0a1293ef4e70c6357c87 /lib/libc | |
| parent | e0c02ed147618840818df19cef20fed49b79964b (diff) | |
| download | FreeBSD-src-cd2864eb2e7598332d2a84c93a65c6d52675d3b9.zip FreeBSD-src-cd2864eb2e7598332d2a84c93a65c6d52675d3b9.tar.gz | |
check return value of ttyname_r().
Diffstat (limited to 'lib/libc')
| -rw-r--r-- | lib/libc/gen/ttyname.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/libc/gen/ttyname.c b/lib/libc/gen/ttyname.c index 013796c..06dd1b9 100644 --- a/lib/libc/gen/ttyname.c +++ b/lib/libc/gen/ttyname.c @@ -124,7 +124,8 @@ ttyname(int fd) return (NULL); } } - ttyname_r(fd, buf, sizeof(_PATH_DEV) + MAXNAMLEN); + if (ttyname_r(fd, buf, sizeof(_PATH_DEV) + MAXNAMLEN) != 0) + return (NULL); return (buf); } |
