xref: /illumos-gate/usr/src/uts/common/sys/ptem.h (revision d48be21240dfd051b689384ce2b23479d757f2d8)
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 #ifndef _SYS_PTEM_H
27 #define	_SYS_PTEM_H
28 
29 #include <sys/termios.h>
30 
31 #ifdef	__cplusplus
32 extern "C" {
33 #endif
34 
35 /*
36  * The ptem data structure used to define the global data
37  * for the psuedo terminal emulation streams module
38  */
39 struct ptem {
40 	tcflag_t cflags;	/* copy of c_cflags */
41 	mblk_t *dack_ptr;	/* preallocated mblk used to ACK disconnect */
42 	queue_t *q_ptr;		/* ptem read queue */
43 	struct winsize wsz;	/* struct to hold the windowing info. */
44 	unsigned short state;	/* state of ptem entry: see below */
45 };
46 
47 /*
48  * state flags
49  */
50 #define	REMOTEMODE	0x1	/* Pty in remote mode */
51 #define	OFLOW_CTL	0x2	/* Outflow control on */
52 #define	IS_PTSTTY	0x4	/* is x/open terminal */
53 
54 /*
55  * Constants used to distinguish between a common function invoked
56  * from the read or write side put procedures
57  */
58 #define	RDSIDE	1
59 #define	WRSIDE	2
60 
61 #ifdef	__cplusplus
62 }
63 #endif
64 
65 #endif	/* _SYS_PTEM_H */
66