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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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isotpdump.c
+7 -2
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@@ -103,7 +103,7 @@ int main(int argc, char **argv)
last_tv.tv_sec = 0;
last_tv.tv_usec = 0;
while ((opt = getopt(argc, argv, "s:d:ax:ct:")) != -1) {
while ((opt = getopt(argc, argv, "s:d:ax:ct:?")) != -1) {
switch (opt) {
case 's':
src = strtoul(optarg, (char **)NULL, 16);
@@ -144,10 +144,15 @@ int main(int argc, char **argv)
}
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;
}
}