diff options
Diffstat (limited to 'cifs.idmap.c')
| -rw-r--r-- | cifs.idmap.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/cifs.idmap.c b/cifs.idmap.c index e507035..d2ccbb1 100644 --- a/cifs.idmap.c +++ b/cifs.idmap.c @@ -45,6 +45,7 @@ static const char *prog = "cifs.idmap"; static const struct option long_options[] = { + {"help", 0, NULL, 'h'}, {"timeout", 1, NULL, 't'}, {"version", 0, NULL, 'v'}, {NULL, 0, NULL, 0} @@ -52,7 +53,7 @@ static const struct option long_options[] = { static void usage(void) { - fprintf(stderr, "Usage: %s key_serial\n", prog); + fprintf(stderr, "Usage: %s [-h] [-v] [-t timeout] key_serial\n", prog); } char *strget(const char *str, const char *substr) @@ -224,8 +225,13 @@ int main(const int argc, char *const argv[]) openlog(prog, 0, LOG_DAEMON); - while ((c = getopt_long(argc, argv, "t:v", long_options, NULL)) != -1) { + while ((c = getopt_long(argc, argv, "ht:v", + long_options, NULL)) != -1) { switch (c) { + case 'h': + rc = 0; + usage(); + goto out; case 't': rc = str_to_uint(optarg, &timeout); if (rc) { |