From: Brian McGillion <brian.mcgillion@intel.com>
Date: Fri, 11 Nov 2011 08:34:04 +0000 (+0200)
Subject: Add usage
X-Git-Tag: accepted/trunk/20130107.204027~42^2^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=967f209ce57e11bdc900f5b8de89958358127946;p=platform%2Fupstream%2Fsmack.git

Add usage
---

diff --git a/utils/smackload.c b/utils/smackload.c
index b86ee81..af93153 100644
--- a/utils/smackload.c
+++ b/utils/smackload.c
@@ -26,6 +26,12 @@
 #include <stdlib.h>
 #include <stdio.h>
 
+static int usage(const char *bin)
+{
+	fprintf(stderr, "Usage: %s [-c] <path>\n", bin);
+	exit(1);
+}
+
 int main(int argc, char **argv)
 {
 	int clear = 0;
@@ -37,11 +43,13 @@ int main(int argc, char **argv)
 				clear = 1;
 				break;
 			default:
-				fprintf(stderr, "Usage: %s [-c] <path>\n", argv[0]);
-				exit(1);
+				usage(argv[0]);
 		}
 	}
 
+	if (optind == argc)
+		usage(argv[0]);
+
 	if (is_smackfs_mounted() != 1) {
 		fprintf(stderr, "ERROR: SmackFS is not mounted.\n");
 		return -1;