wipefs: fail if more device arguments specified

Currently wipefs process only first device argument and silently ignores
remaining.  Print error instead because it can be quite confusing.

Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/misc-utils/wipefs.c b/misc-utils/wipefs.c
index d3033446f615ff6488e19360a8a07fd6d1f23cbf..4ab361597f25e0cf2c47237a97b6fdf2fb783bfe 100644 (file)
--- a/misc-utils/wipefs.c
+++ b/misc-utils/wipefs.c
@@ -384,6 +384,9 @@ main(int argc, char **argv)
 
        fname = argv[optind++];
 
+       if (optind != argc)
+               errx(EXIT_FAILURE, _("only one device as argument is currently supported."));
+
        wp = read_offsets(wp, fname, all);
 
        if (wp) {