xref: /illumos-gate/usr/src/cmd/bnu/dkbreak.c (revision 7c478bd9)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23 /*	  All Rights Reserved  	*/
24 
25 
26 #ident	"%Z%%M%	%I%	%E% SMI"
27 
28 #ifndef DIAL
29 	static char	SCCSID[] = "@(#)dkbreak.c	2.2+BNU DKHOST 86/04/02";
30 #endif
31 /*
32  *	COMMKIT(TM) Software - Datakit(R) VCS Interface Release 2.0 V1
33  */
34 #include	"dk.h"
35 
36 	static short	sendbreak[3] = {
37 		72, 0, 0
38 	};	/* Asynch Break Level-D code */
39 
40 GLOBAL void
dkbreak(fd)41 dkbreak(fd)
42 {
43 	char	nothing[1];
44 
45 	ioctl(fd, DIOCXCTL, sendbreak);
46 
47 	write(fd, nothing, 0);
48 }
49