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/* Header file for mounting/unmount Linux filesystems.
Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* This is taken from /usr/include/linux/fs.h. */
#ifndef _SYS_MOUNT_H
#define _SYS_MOUNT_H 1
#include <features.h>
#include <sys/ioctl.h>
#define BLOCK_SIZE 1024
#define BLOCK_SIZE_BITS 10
/* These are the fs-independent mount-flags: up to 16 flags are
supported */
enum
{
MS_RDONLY = 1, /* Mount read-only. */
#define MS_RDONLY MS_RDONLY
MS_NOSUID = 2, /* Ignore suid and sgid bits. */
#define MS_NOSUID MS_NOSUID
MS_NODEV = 4, /* Disallow access to device special files. */
#define MS_NODEV MS_NODEV
MS_NOEXEC = 8, /* Disallow program execution. */
#define MS_NOEXEC MS_NOEXEC
MS_SYNCHRONOUS = 16, /* Writes are synced at once. */
#define MS_SYNCHRONOUS MS_SYNCHRONOUS
MS_REMOUNT = 32, /* Alter flags of a mounted FS. */
#define MS_REMOUNT MS_REMOUNT
MS_MANDLOCK = 64, /* Allow mandatory locks on an FS. */
#define MS_MANDLOCK MS_MANDLOCK
S_WRITE = 128, /* Write on file/directory/symlink. */
#define S_WRITE S_WRITE
S_APPEND = 256, /* Append-only file. */
#define S_APPEND S_APPEND
S_IMMUTABLE = 512, /* Immutable file. */
#define S_IMMUTABLE S_IMMUTABLE
MS_NOATIME = 1024, /* Do not update access times. */
#define MS_NOATIME MS_NOATIME
MS_NODIRATIME = 2048 /* Do not update directory access times. */
#define MS_NODIRATIME MS_NODIRATIME
};
/* Flags that can be altered by MS_REMOUNT */
#define MS_RMT_MASK (MS_RDONLY | MS_MANDLOCK)
/* Magic mount flag number. Has to be or-ed to the flag values. */
#define MS_MGC_VAL 0xc0ed0000 /* Magic flag number to indicate "new" flags */
#define MS_MGC_MSK 0xffff0000 /* Magic flag number mask */
/* The read-only stuff doesn't really belong here, but any other place
is probably as bad and I don't want to create yet another include
file. */
#define BLKROSET _IO(0x12, 93) /* Set device read-only (0 = read-write). */
#define BLKROGET _IO(0x12, 94) /* Get read-only status (0 = read_write). */
#define BLKRRPART _IO(0x12, 95) /* Re-read partition table. */
#define BLKGETSIZE _IO(0x12, 96) /* Return device size. */
#define BLKFLSBUF _IO(0x12, 97) /* Flush buffer cache. */
#define BLKRASET _IO(0x12, 98) /* Set read ahead for block device. */
#define BLKRAGET _IO(0x12, 99) /* Get current read ahead setting. */
/* Possible value for FLAGS parameter of `umount2'. */
enum
{
MNT_FORCE = 1 /* Force unmounting. */
#define MNT_FORCE MNT_FORCE
};
__BEGIN_DECLS
/* Mount a filesystem. */
extern int mount __P ((__const char *__special_file, __const char *__dir,
__const char *__fstype, unsigned long int __rwflag,
__const void *__data));
/* Unmount a filesystem. */
extern int umount __P ((__const char *__special_file));
/* Unmount a filesystem. Force unmounting if FLAGS is set to MNT_FORCE. */
extern int umount2 __P ((__const char *__special_file, int __flags));
__END_DECLS
#endif /* _SYS_MOUNT_H */
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