rrset_msg(struct ub_packed_rrset_key* rrset, struct regional* region, 
	time_t now, struct query_info* q)
{
	struct dns_msg* msg;
	struct packed_rrset_data* d = (struct packed_rrset_data*)
		rrset->entry.data;
	if(now > d->ttl)
		return NULL;
	msg = gen_dns_msg(region, q, 1); /* only the CNAME (or other) RRset */
	if(!msg)
		return NULL;
	msg->rep->flags = BIT_QR; /* reply, no AA, no error */
        msg->rep->authoritative = 0; /* reply stored in cache can't be authoritative */
	msg->rep->qdcount = 1;
	msg->rep->ttl = d->ttl - now;
	msg->rep->prefetch_ttl = PREFETCH_TTL_CALC(msg->rep->ttl);
	msg->rep->serve_expired_ttl = msg->rep->ttl + SERVE_EXPIRED_TTL;
	msg->rep->security = sec_status_unchecked;
	msg->rep->an_numrrsets = 1;
	msg->rep->ns_numrrsets = 0;
	msg->rep->ar_numrrsets = 0;
	msg->rep->rrset_count = 1;
	msg->rep->reason_bogus = LDNS_EDE_NONE;
	msg->rep->rrsets[0] = packed_rrset_copy_region(rrset, region, now);
	if(!msg->rep->rrsets[0]) /* copy CNAME */
		return NULL;
	return msg;
}
rrset_msg(struct ub_packed_rrset_key* rrset, struct regional* region, 
	time_t now, struct query_info* q)
{
	struct dns_msg* msg;
	struct packed_rrset_data* d = (struct packed_rrset_data*)
		rrset->entry.data;
	if(now > d->ttl)
		return NULL;
	msg = gen_dns_msg(region, q, 1);  
	if(!msg)
		return NULL;
	msg->rep->flags = BIT_QR;  
        msg->rep->authoritative = 0;  
	msg->rep->qdcount = 1;
	msg->rep->ttl = d->ttl - now;
	msg->rep->prefetch_ttl = PREFETCH_TTL_CALC(msg->rep->ttl);
	msg->rep->serve_expired_ttl = msg->rep->ttl + SERVE_EXPIRED_TTL;
	msg->rep->security = sec_status_unchecked;
	msg->rep->an_numrrsets = 1;
	msg->rep->ns_numrrsets = 0;
	msg->rep->ar_numrrsets = 0;
	msg->rep->rrset_count = 1;
	msg->rep->reason_bogus = LDNS_EDE_NONE;
	msg->rep->rrsets[0] = packed_rrset_copy_region(rrset, region, now);
	if(!msg->rep->rrsets[0])  
		return NULL;
	return msg;
}