ntlv_to_ti
ntlv_to_ti(&oh->ntlv, &ti_a);
ntlv_to_ti((ipfw_obj_ntlv *)(oh + 1), &ti_b);
ntlv_to_ti(ntlv, &ti);
ntlv_to_ti(&oh->ntlv, ti);
static void ntlv_to_ti(struct _ipfw_obj_ntlv *ntlv, struct tid_info *ti);