NODEDATA
bcopy(NODEDATA(leaf), data->data, data->size);
data->data = NODEDATA(leaf);
bcopy(NODEDATA(leaf), &pgno, sizeof(pgno));
data.data = NODEDATA(srcnode);
data.data = NODEDATA(srcnode);
rdata.data = NODEDATA(node);
bcopy(NODEDATA(node), &next, sizeof(next));
bcopy(&next, NODEDATA(node), sizeof(next));