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#pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 11.7	*/
30
31#include <sys/termios.h>
32
33#ifdef	__cplusplus
34extern "C" {
35#endif
36
37/*
38 * The ptem data structure used to define the global data
39 * for the psuedo terminal emulation streams module
40 */
41struct ptem {
42	tcflag_t cflags;	/* copy of c_cflags */
43	mblk_t *dack_ptr;	/* preallocated mblk used to ACK disconnect */
44	queue_t *q_ptr;		/* ptem read queue */
45	struct winsize wsz;	/* struct to hold the windowing info. */
46	unsigned short state;	/* state of ptem entry: see below */
47};
48
49/*
50 * state flags
51 */
52#define	REMOTEMODE	0x1	/* Pty in remote mode */
53#define	OFLOW_CTL	0x2	/* Outflow control on */
54#define	IS_PTSTTY	0x4	/* is x/open terminal */
55
56/*
57 * Constants used to distinguish between a common function invoked
58 * from the read or write side put procedures
59 */
60#define	RDSIDE	1
61#define	WRSIDE	2
62
63#ifdef	__cplusplus
64}
65#endif
66
67#endif	/* _SYS_PTEM_H */
68