getargstr
if (getargstr(env, "range", range, sizeof(range)) == -1)
ssize_t getargstr(prop_dictionary_t, const char *, char *, size_t);
if (getargstr(env, "bssid", buf, sizeof(buf)) == -1)
if (getargstr(env, "nwkey", buf, sizeof(buf)) == -1)
if (getargstr(env, "linkstr", linkstr, linkstrlen) == -1)
if (getargstr(env, "descr", descr, len) == -1)