ifdef.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* 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
* 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 1996 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.2 */
/*
*
*
*/
#ifdef SYSV
#include <termio.h>
#endif
#ifdef V9
extern int tty_ld;
#endif
#ifdef BSD4_2
#include <sgtty.h>
#include <errno.h>
#define FD_ZERO(s) (s) = 0
#define FD_SET(n,s) (s) |= 1 << (n)
extern int errno;
#endif
#ifdef DKHOST
#include <dk.h>
#include <sysexits.h>
extern char *dtnamer();
extern int dkminor();
#endif
/*
*
* External variable declarations - most (if not all) are defined in postio.c and
* needed by the routines in ifdef.c.
*
*/
extern char *line; /* printer is on this line */
extern int ttyi; /* input */
extern int ttyo; /* and output file descriptors */
extern char mesg[]; /* exactly what came back on ttyi */
extern char *endmesg; /* one in front of last free slot in mesg */
extern int next; /* next character goes in mesg[next] */
extern short baudrate; /* printer is running at this speed */
extern int stopbits; /* and expects this many stop bits */
extern int interactive; /* TRUE for interactive mode */
extern int canread; /* allows reads */
extern int canwrite; /* and writes if TRUE */