37     int sock;  member
47     int sock;  in nbd_open()  local
60         sock = unix_socket_outgoing(unixpath);  in nbd_open()
79         sock = tcp_socket_outgoing(hostname, port);  in nbd_open()
82     if (sock == -1)  in nbd_open()
85     ret = nbd_receive_negotiate(sock, &size, &blocksize);  in nbd_open()
89     s->sock = sock;  in nbd_open()
108     if (nbd_send_request(s->sock, &request) == -1)  in nbd_read()
111     if (nbd_receive_reply(s->sock, &reply) == -1)  in nbd_read()
120     if (nbd_wr_sync(s->sock, buf, request.len, 1) != request.len)  in nbd_read()
138     if (nbd_send_request(s->sock, &request) == -1)  in nbd_write()
141     if (nbd_wr_sync(s->sock, (uint8_t*)buf, request.len, 0) != request.len)  in nbd_write()
144     if (nbd_receive_reply(s->sock, &reply) == -1)  in nbd_write()
165     nbd_send_request(s->sock, &request);  in nbd_close()
167     close(s->sock);  in nbd_close()