Function isundefarg

tools/ifconfig/ifieee80211.c:940–944

}

static int
isundefarg(const char *arg)
{
	return (strcmp(arg, "-") == 0 || strncasecmp(arg, "undef", 5) == 0);
}

static void
set80211weptxkey(const char *val, int d, int s, const struct afswtch *rafp)