/* -*- linux-c -*- --------------------------------------------------------- *

 *

 * linux/include/linux/devpts_fs.h

 *

 *  Copyright 1998-2004 H. Peter Anvin -- All Rights Reserved

 *

 * This file is part of the Linux kernel and is made available under

 * the terms of the GNU General Public License, version 2, or at your

 * option, any later version, incorporated herein by reference.

 *

 * ------------------------------------------------------------------------- */

#ifndef _LINUX_DEVPTS_FS_H

#define _LINUX_DEVPTS_FS_H

#include <linux/errno.h>

#ifdef CONFIG_UNIX98_PTYS

int devpts_new_index(struct inode *ptmx_inode);

void devpts_kill_index(struct inode *ptmx_inode, int idx);

/* mknod in devpts */

int devpts_pty_new(struct inode *ptmx_inode, struct tty_struct *tty);

/* get tty structure */

struct tty_struct *devpts_get_tty(struct inode *pts_inode, int number);

/* unlink */

void devpts_pty_kill(struct tty_struct *tty);

#else

/* Dummy stubs in the no-pty case */

static inline int devpts_new_index(struct inode *ptmx_inode) { return -EINVAL; }

static inline void devpts_kill_index(struct inode *ptmx_inode, int idx) { }

static inline int devpts_pty_new(struct inode *ptmx_inode,

				struct tty_struct *tty)

{

	return -EINVAL;

}

static inline struct tty_struct *devpts_get_tty(struct inode *pts_inode,

		int number)

{

	return NULL;

}

static inline void devpts_pty_kill(struct tty_struct *tty) { }

#endif

#endif /* _LINUX_DEVPTS_FS_H */