diff options
| author | Bob Beck <beck@cvs.openbsd.org> | 2016-05-28 16:00:20 +0000 |
|---|---|---|
| committer | Bob Beck <beck@cvs.openbsd.org> | 2016-05-28 16:00:20 +0000 |
| commit | 4447e275267f931372259ca6bdd2ba8bac431d55 (patch) | |
| tree | d5d1a982d07fa7a62a88ba02fa91fd6eafdda8bc /sbin | |
| parent | 90b0e4be9c57805fcf06de09a24eddd594fdf8c6 (diff) | |
fix crash if filename not provided
Diffstat (limited to 'sbin')
| -rw-r--r-- | sbin/disklabel/disklabel.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sbin/disklabel/disklabel.c b/sbin/disklabel/disklabel.c index ab32f047e35..be0b76f59a1 100644 --- a/sbin/disklabel/disklabel.c +++ b/sbin/disklabel/disklabel.c @@ -1,4 +1,4 @@ -/* $OpenBSD: disklabel.c,v 1.215 2016/05/28 15:46:43 beck Exp $ */ +/* $OpenBSD: disklabel.c,v 1.216 2016/05/28 16:00:19 beck Exp $ */ /* * Copyright (c) 1987, 1993 @@ -191,6 +191,8 @@ main(int argc, char *argv[]) argc -= optind; argv += optind; + if (argv[0] == NULL) + usage(); dkname = argv[0]; f = opendev(dkname, (op == READ ? O_RDONLY : O_RDWR), OPENDEV_PART, &specname); |