BROOKTREE_ALLOC
if (BROOKTREE_ALLOC) {
sbuf = get_bktr_mem(bktr, &bktr->dm_mem, BROOKTREE_ALLOC);
if (BROOKTREE_ALLOC)
sbuf = get_bktr_mem(unit, BROOKTREE_ALLOC);
bktr_name(bktr), BROOKTREE_ALLOC,
memset((void *) bktr->bigbuf, 0, BROOKTREE_ALLOC);