From: Milan Broz <mbroz@redhat.com>
Date: Fri, 17 Dec 2010 22:36:55 +0000 (+0100)
Subject: wipefs: fail if more device arguments specified
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6ebe8f630ad8f31cd0aca0636f73eb9b4ffe5aa2;p=util-linux

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 d3033446..4ab36159 100644
--- 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) {