1/*
2 * Copyright (c) 1982, 1986, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
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25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)tty_pty.c 8.4 (Berkeley) 2/20/95
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD: head/sys/kern/tty_pty.c 130585 2004-06-16 09:47:26Z phk $");
34
35/*
36 * Pseudo-teletype Driver
37 * (Actually two drivers, requiring two entries in 'cdevsw')
38 */
39#include "opt_compat.h"
40#include "opt_tty.h"
41#include <sys/param.h>
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138{
139 struct cdev *devs;
140 struct ptsc *pt;
141 int n;
142
143 n = minor(devc);
144 /* For now we only map the lower 8 bits of the minor */
145 if (n & ~0xff)
146 return (NODEV);
147
148 devc->si_flags &= ~SI_CHEAPCLONE;
149
150 pt = malloc(sizeof(*pt), M_PTY, M_WAITOK | M_ZERO);
151 pt->devs = devs = make_dev(&pts_cdevsw, n,
152 UID_ROOT, GID_WHEEL, 0666, "tty%c%r", names[n / 32], n % 32);
153 pt->devc = devc;
154
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772 return (error);
773}
774
775static void
776pty_clone(void *arg, char *name, int namelen, struct cdev **dev)
777{
778 int u;
779
780 if (*dev != NODEV)
781 return;
782 if (bcmp(name, "pty", 3) != 0)
783 return;
784 if (name[5] != '\0')
785 return;
786 switch (name[3]) {
787 case 'p': u = 0; break;
788 case 'q': u = 32; break;
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2 * Copyright (c) 1982, 1986, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
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25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)tty_pty.c 8.4 (Berkeley) 2/20/95
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD: head/sys/kern/tty_pty.c 130585 2004-06-16 09:47:26Z phk $");
34
35/*
36 * Pseudo-teletype Driver
37 * (Actually two drivers, requiring two entries in 'cdevsw')
38 */
39#include "opt_compat.h"
40#include "opt_tty.h"
41#include <sys/param.h>
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138{
139 struct cdev *devs;
140 struct ptsc *pt;
141 int n;
142
143 n = minor(devc);
144 /* For now we only map the lower 8 bits of the minor */
145 if (n & ~0xff)
146 return (NODEV);
147
148 devc->si_flags &= ~SI_CHEAPCLONE;
149
150 pt = malloc(sizeof(*pt), M_PTY, M_WAITOK | M_ZERO);
151 pt->devs = devs = make_dev(&pts_cdevsw, n,
152 UID_ROOT, GID_WHEEL, 0666, "tty%c%r", names[n / 32], n % 32);
153 pt->devc = devc;
154
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772 return (error);
773}
774
775static void
776pty_clone(void *arg, char *name, int namelen, struct cdev **dev)
777{
778 int u;
779
780 if (*dev != NODEV)
781 return;
782 if (bcmp(name, "pty", 3) != 0)
783 return;
784 if (name[5] != '\0')
785 return;
786 switch (name[3]) {
787 case 'p': u = 0; break;
788 case 'q': u = 32; break;
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