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Consistencely allow '-?' to get a help text.

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This commit is contained in:
Oliver Hartkopp
2009-01-13 09:32:45 +00:00
parent 278ba6377d
commit 4369ac1c55
10 changed files with 56 additions and 19 deletions
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isotptun.c
+8 -3
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@@ -111,7 +111,7 @@ int main(int argc, char **argv)
addr.can_addr.tp.tx_id = addr.can_addr.tp.rx_id = NO_CAN_ID;
while ((opt = getopt(argc, argv, "s:d:x:p:q:P:t:b:m:whv")) != -1) {
while ((opt = getopt(argc, argv, "s:d:x:p:q:P:t:b:m:whv?")) != -1) {
switch (opt) {
case 's':
addr.can_addr.tp.tx_id = strtoul(optarg, (char **)NULL, 16);
@@ -178,10 +178,15 @@ int main(int argc, char **argv)
verbose = 1;
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;
}
}
@@ -190,7 +195,7 @@ int main(int argc, char **argv)
(addr.can_addr.tp.tx_id == NO_CAN_ID) ||
(addr.can_addr.tp.rx_id == NO_CAN_ID)) {
print_usage(basename(argv[0]));
exit(0);
exit(1);
}
if ((s = socket(PF_CAN, SOCK_DGRAM, CAN_ISOTP)) < 0) {