dname_partial_copy
return dname_partial_copy(region, dname, dname->label_count - 1);
const dname_type *dname_partial_copy(region_type *region,
= dname_partial_copy(
to_prove = dname_partial_copy(query->region, qname,
= dname_partial_copy(q->region,
= dname_partial_copy(q->region,