From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Tue, 16 Jul 2013 19:55:15 +0000 (+0200)
Subject: xtables-events: print usage on wrong arguments
X-Git-Tag: v1.6.0~111^2~81
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1c73b54e826ffd28e94987b6ced51c4049661793;p=thirdparty%2Fiptables.git

xtables-events: print usage on wrong arguments

Set opterr to zero to skip getopt_long error reporting.

This also fixes the following compilation warning:

xtables-events.c:148:13: warning: ‘print_usage’ defined but not used [-Wunused-function]

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---

diff --git a/iptables/xtables-events.c b/iptables/xtables-events.c
index 2600a250..d4542f0b 100644
--- a/iptables/xtables-events.c
+++ b/iptables/xtables-events.c
@@ -172,11 +172,15 @@ int xtables_events_main(int argc, char *argv[])
 	init_extensions4();
 #endif
 
+	opterr = 0;
 	while ((c = getopt_long(argc, argv, "c", options, NULL)) != -1) {
 		switch (c) {
 	        case 'c':
 			counters = true;
 			break;
+		default:
+			print_usage(argv[0], XTABLES_VERSION);
+			exit(EXIT_FAILURE);
 		}
 	}