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wlanstats: add help

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- add a help (-h) flag
- move usage into itsown function
This commit is contained in:
Eitan Adler 2014-03-07 01:23:49 +00:00
parent 4ac70c829c
commit fb7aab9932
1 changed files with 11 additions and 2 deletions
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13
tools/tools/net80211/wlanstats/main.c
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@ -153,6 +153,11 @@ print_sta_stats(FILE *fd, const u_int8_t macaddr[IEEE80211_ADDR_LEN])
}
#endif
void
usage(void) {
printf("wlanstats: [-ah] [-i ifname] [-l] [-o fmt] [interval]\n");
}
int
main(int argc, char *argv[])
{
@ -167,11 +172,14 @@ main(int argc, char *argv[])
if (ifname == NULL)
ifname = "wlan0";
wf = wlanstats_new(ifname, getfmt("default"));
while ((c = getopt(argc, argv, "ai:lm:o:")) != -1) {
while ((c = getopt(argc, argv, "ahi:lm:o:")) != -1) {
switch (c) {
case 'a':
allnodes++;
break;
case 'h':
usage();
exit(0);
case 'i':
wf->setifname(wf, optarg);
break;
@ -188,7 +196,8 @@ main(int argc, char *argv[])
wf->setfmt(wf, getfmt(optarg));
break;
default:
errx(-1, "usage: %s [-a] [-i ifname] [-l] [-o fmt] [interval]\n", argv[0]);
usage();
exit(1);
/*NOTREACHED*/
}
}