memset ( &tftp, 0, sizeof ( tftp ) );
udp_connect ( &tftp.udp, target );
tftp.filename = filename;
tftp.callback = test_tftp_callback;
memset ( &tftp, 0, sizeof ( tftp ) );
udp_connect ( &tftp.udp, target );
tftp.filename = filename;
tftp.callback = test_tftp_callback;