1/* $NetBSD: pty.h,v 1.11 2014/10/15 15:00:03 christos Exp $ */
2
3/*-
4 * Copyright (c) 2004 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31#ifndef _SYS_PTY_H_
32#define _SYS_PTY_H_
33
34int pty_isfree(int, int);
35int pty_check(int);
36
37#ifndef NO_DEV_PTM
38void ptmattach(int);
39int pty_fill_ptmget(struct lwp *, dev_t, int, int, void *, struct mount *);
40int pty_grant_slave(struct lwp *, dev_t, struct mount *);
41dev_t pty_makedev(char, int);
42struct ptm_pty *pty_sethandler(struct ptm_pty *);
43int pty_getmp(struct lwp *, struct mount **);
44
45/*
46 * Ptm_pty is used for switch ptm{x} driver between BSDPTY, PTYFS.
47 * Functions' argument (struct mount *) is used only PTYFS,
48 * in the case BSDPTY can be NULL.
49 */
50struct ptm_pty {
51 int (*allocvp)(struct mount *, struct lwp *, struct vnode **, dev_t,
52 char);
53 int (*makename)(struct mount *, struct lwp *, char *, size_t, dev_t, char);
54 void (*getvattr)(struct mount *, struct lwp *, struct vattr *);
55 int (*getmp)(struct lwp *, struct mount **);
56};
57
58#ifdef COMPAT_BSDPTY
59extern struct ptm_pty ptm_bsdpty;
60#endif
61
62#endif /* NO_DEV_PTM */
63
64extern int npty;
65
66#endif /* _SYS_PTY_H_ */
67