/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/*        All Rights Reserved   */


#ifndef _SYS_PTEM_H
#define _SYS_PTEM_H

#include <sys/termios.h>

#ifdef  __cplusplus
extern "C" {
#endif

/*
 * The ptem data structure used to define the global data
 * for the psuedo terminal emulation streams module
 */
struct ptem {
        tcflag_t cflags;        /* copy of c_cflags */
        mblk_t *dack_ptr;       /* preallocated mblk used to ACK disconnect */
        queue_t *q_ptr;         /* ptem read queue */
        struct winsize wsz;     /* struct to hold the windowing info. */
        unsigned short state;   /* state of ptem entry: see below */
};

/*
 * state flags
 */
#define REMOTEMODE      0x1     /* Pty in remote mode */
#define OFLOW_CTL       0x2     /* Outflow control on */
#define IS_PTSTTY       0x4     /* is x/open terminal */

/*
 * Constants used to distinguish between a common function invoked
 * from the read or write side put procedures
 */
#define RDSIDE  1
#define WRSIDE  2

#ifdef  __cplusplus
}
#endif

#endif  /* _SYS_PTEM_H */