From: Oliver Hartkopp <socketcan@hartkopp.net>
Date: Mon, 18 Jun 2007 20:04:23 +0000 (+0000)
Subject: Added program exit on SIOCGIFINDEX error.
X-Git-Url: https://rtime.felk.cvut.cz/gitweb/can-utils.git/commitdiff_plain/f1e643f8f1d4e53c77422c8ab04ae8dc2f89833c

Added program exit on SIOCGIFINDEX error.
---

diff --git a/cangen.c b/cangen.c
index 660dacb..999b0c2 100644
--- a/cangen.c
+++ b/cangen.c
@@ -198,8 +198,10 @@ int main(int argc, char **argv)
     addr.can_family = AF_CAN;
 
     strcpy(ifr.ifr_name, argv[optind]);
-    if (ioctl(s, SIOCGIFINDEX, &ifr) < 0)
+    if (ioctl(s, SIOCGIFINDEX, &ifr) < 0) {
 	perror("SIOCGIFINDEX");
+	return 1;
+    }
     addr.can_ifindex = ifr.ifr_ifindex;
 
     /* disable default receive filter on this RAW socket */