1/*	$NetBSD: wwpty.c,v 1.7 2002/06/14 01:07:00 wiz Exp $	*/
2
3/*
4 * Copyright (c) 1983, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Edward Wang at The University of California, Berkeley.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <sys/cdefs.h>
36#ifndef lint
37#if 0
38static char sccsid[] = "@(#)wwpty.c	8.1 (Berkeley) 6/6/93";
39#else
40__RCSID("$NetBSD: wwpty.c,v 1.7 2002/06/14 01:07:00 wiz Exp $");
41#endif
42#endif /* not lint */
43
44#if !defined(OLD_TTY) && !defined(TIOCPKT)
45#include <sys/ioctl.h>
46#endif
47#include <fcntl.h>
48#include <util.h>
49#include "ww.h"
50
51int
52wwgetpty(struct ww *w)
53{
54	int on = 1;
55	int result, tty;
56
57	result = openpty(&w->ww_pty, &tty, w->ww_ttyname, NULL, NULL);
58	if (result < 0) {
59		w->ww_pty = -1;
60		wwerrno = WWE_NOPTY;
61		return -1;
62	} else {
63		(void) ioctl(w->ww_pty, TIOCPKT, (char *)&on);
64		(void) fcntl(w->ww_pty, F_SETFD, 1);
65		return 0;
66	}
67}
68