pfr_setflags_ktable(kt, PFR_TFLAG_REFERENCED, 0);
pfr_setflags_ktable(kt, kt->pfrkt_flags|PFR_TFLAG_REFERENCED);
pfr_attach_table(char *name){	struct pfr_ktable	*kt;	struct pfr_table	 tbl;	bzero(&tbl, sizeof(tbl));	strlcpy(tbl.pfrt_name, name, sizeof(tbl.pfrt_name));	kt = pfr_lookup_table(&tbl);	if (kt == NULL) {		kt = pfr_create_ktable(&tbl, time.tv_sec);		if (kt == NULL)			return NULL;		pfr_insert_ktable(kt);	}	if (!kt->pfrkt_refcnt++)		pfr_setflags_ktable(kt, PFR_TFLAG_REFERENCED, 0);	return kt;}