/*
- * $Id: isotpsniffer.c 824 2008-09-02 07:01:51Z hartko $
- */
-
-/*
* isotpsniffer.c - dump ISO15765-2 datagrams using PF_CAN isotp protocol
*
* Copyright (c) 2008 Volkswagen Group Electronic Research
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
- * Send feedback to <socketcan-users@lists.berlios.de>
+ * Send feedback to <linux-can@vger.kernel.org>
*
*/
unsigned char buffer[4096];
int nbytes;
- while ((opt = getopt(argc, argv, "s:d:x:h:ct:f:")) != -1) {
+ while ((opt = getopt(argc, argv, "s:d:x:h:ct:f:?")) != -1) {
switch (opt) {
case 's':
src = strtoul(optarg, (char **)NULL, 16);
}
break;
+ case '?':
+ print_usage(basename(argv[0]));
+ exit(0);
+ break;
+
default:
fprintf(stderr, "Unknown option %c\n", opt);
print_usage(basename(argv[0]));
- exit(0);
+ exit(1);
break;
}
}
if ((argc - optind) != 1 || src == NO_CAN_ID || dst == NO_CAN_ID) {
print_usage(basename(argv[0]));
- exit(0);
+ exit(1);
}
if ((s = socket(PF_CAN, SOCK_DGRAM, CAN_ISOTP)) < 0) {