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1/* -*- linux-c -*- --------------------------------------------------------- *
2 *
3 * linux/include/linux/devpts_fs.h
4 *
5 * Copyright 1998-2004 H. Peter Anvin -- All Rights Reserved
6 *
7 * This file is part of the Linux kernel and is made available under
8 * the terms of the GNU General Public License, version 2, or at your
9 * option, any later version, incorporated herein by reference.
10 *
11 * ------------------------------------------------------------------------- */
12
13#ifndef _LINUX_DEVPTS_FS_H
14#define _LINUX_DEVPTS_FS_H
15
16#include <linux/errno.h>
17
18#ifdef CONFIG_UNIX98_PTYS
19
20int devpts_new_index(void);
21void devpts_kill_index(int idx);
22int devpts_pty_new(struct tty_struct *tty); /* mknod in devpts */
23struct tty_struct *devpts_get_tty(int number); /* get tty structure */
24void devpts_pty_kill(int number); /* unlink */
25
26#else
27
28/* Dummy stubs in the no-pty case */
29static inline int devpts_new_index(void) { return -EINVAL; }
30static inline void devpts_kill_index(int idx) { }
31static inline int devpts_pty_new(struct tty_struct *tty) { return -EINVAL; }
32static inline struct tty_struct *devpts_get_tty(int number) { return NULL; }
33static inline void devpts_pty_kill(int number) { }
34
35#endif
36
37
38#endif /* _LINUX_DEVPTS_FS_H */