NetBSD/usr.bin/window/wwpty.c

/*	$NetBSD: wwpty.c,v 1.8 2003/08/07 11:17:42 agc Exp $	*/

/*
 * Copyright (c) 1983, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Edward Wang at The University of California, Berkeley.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)wwpty.c	8.1 (Berkeley) 6/6/93";
#else
__RCSID("$NetBSD: wwpty.c,v 1.8 2003/08/07 11:17:42 agc Exp $");
#endif
#endif /* not lint */

#if !defined(OLD_TTY) && !defined(TIOCPKT)
#include <sys/ioctl.h>
#endif
#include <fcntl.h>
#include <util.h>
#include "ww.h"

int
wwgetpty(struct ww *w)
{
	int on = 1;
	int result, tty;

	result = openpty(&w->ww_pty, &tty, w->ww_ttyname, NULL, NULL);
	if (result < 0) {
		w->ww_pty = -1;
		wwerrno = WWE_NOPTY;
		return -1;
	} else {
		(void) ioctl(w->ww_pty, TIOCPKT, (char *)&on);
		(void) fcntl(w->ww_pty, F_SETFD, 1);
		return 0;
	}
}