dname_label_offsets
((uint8_t*)dname_label_offsets(res))[i] =
dname_label_offsets(dest)[i] + x_len;
((uint8_t*)dname_label_offsets(res))[i] =
dname_label_offsets(name)[i - dest->label_count +
memcpy((uint8_t *) dname_label_offsets(result),
memcpy((uint8_t *) dname_label_offsets((void*)dname),
label_index = dname_label_offsets(dname)[label];
offset = dname_label_offsets(q->qname)[domain_dname(closest_encloser)->label_count - 1] + QHEADERSZ;