iter_find_rrset_in_prepend_answer(struct iter_qstate* iq,
	struct ub_packed_rrset_key* rrset)
{
	struct iter_prep_list* p = iq->an_prepend_list;
	while(p) {
		if(ub_rrset_compare(p->rrset, rrset) == 0 &&
			rrsetdata_equal((struct packed_rrset_data*)p->rrset
			->entry.data, (struct packed_rrset_data*)rrset
			->entry.data))
			return 1;
		p = p->next;
	}
	return 0;
}
iter_find_rrset_in_prepend_answer(struct iter_qstate* iq,
	struct ub_packed_rrset_key* rrset)
{
	struct iter_prep_list* p = iq->an_prepend_list;
	while(p) {
		if(ub_rrset_compare(p->rrset, rrset) == 0 &&
			rrsetdata_equal((struct packed_rrset_data*)p->rrset
			->entry.data, (struct packed_rrset_data*)rrset
			->entry.data))
			return 1;
		p = p->next;
	}
	return 0;
}