expand_label
void expand_label(char *, size_t, const char *, u_int8_t,
expand_label(r->label, PF_RULE_LABEL_SIZE, r->ifname, r->af,
expand_label(r->tagname, PF_TAG_NAME_SIZE, r->ifname, r->af,
expand_label(r->match_tagname, PF_TAG_NAME_SIZE, r->ifname,