wipefs: use O_EXCL

Address: https://bugzilla.redhat.com/show_bug.cgi?id=865961
Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/misc-utils/wipefs.c b/misc-utils/wipefs.c
index cddad8a0e3c3d85e95bf51f220b8ea14bfa40017..0ddc148d023d818cc63443b58dc5c02979ef0eb5 100644 (file)
--- a/misc-utils/wipefs.c
+++ b/misc-utils/wipefs.c
@@ -309,7 +309,7 @@ static void do_wipe_real(blkid_probe pr, const char *devname, struct wipe_desc *
 static struct wipe_desc *
 do_wipe(struct wipe_desc *wp, const char *devname, int noact, int all, int quiet)
 {
-       blkid_probe pr = new_probe(devname, O_RDWR);
+       blkid_probe pr = new_probe(devname, O_RDWR | O_EXCL);
        struct wipe_desc *w, *wp0 = clone_offset(wp);
        int zap = all ? 1 : wp->zap;