has_additional
if(has_additional(rrset->type)) del_addi = 1;
if(!has_additional(rrset->type))
if(has_additional(rrset->type)) del_addi = 1;
if(has_additional(rrset->type)) del_addi = 1;
if(!has_additional(rrset->type))
if(has_additional(rrset->type)) del_addi = 1;