write_buf
char *read_buf, *write_buf;
write_buf = (char *)malloc(blocksize * verify_size);
if (write_buf == NULL) {
write_buf[j] = (bn | j) & 0xFF;
ret = verify(handle, fd, bn, verify_size, write_buf,
write_buf,
write_one_client(vntsd_client_t *clientp, write_buf_t *write_buf)
rv = vntsd_write_client(clientp, write_buf->buf, write_buf->sz);
write_buf_t write_buf;
write_buf.sz = sz;
write_buf.buf = buf;
(compare_func_t)write_one_client, &write_buf);