mirror of
https://github.com/sheumann/hush.git
synced 2024-12-22 14:30:31 +00:00
61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
|
/*
|
||
|
|
* fsetversion.c - Set a file version on an ext2 file system
|
||
|
|
*
|
||
|
|
* Copyright (C) 1993, 1994 Remy Card <card@masi.ibp.fr>
|
||
|
|
* Laboratoire MASI, Institut Blaise Pascal
|
||
|
|
* Universite Pierre et Marie Curie (Paris VI)
|
||
|
|
*
|
||
|
|
* This file can be redistributed under the terms of the GNU Library General
|
||
|
|
* Public License
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* History:
|
||
|
|
* 93/10/30 - Creation
|
||
|
|
*/
|
||
|
|
|
||
|
|
#if HAVE_ERRNO_H
|
||
|
|
#include <errno.h>
|
||
|
|
#endif
|
||
|
|
#if HAVE_UNISTD_H
|
||
|
|
#include <unistd.h>
|
||
|
|
#endif
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <sys/ioctl.h>
|
||
|
|
|
||
|
|
#include "e2p.h"
|
||
|
|
|
||
|
|
#ifdef O_LARGEFILE
|
||
|
|
#define OPEN_FLAGS (O_RDONLY|O_NONBLOCK|O_LARGEFILE)
|
||
|
|
#else
|
||
|
|
#define OPEN_FLAGS (O_RDONLY|O_NONBLOCK)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
int fsetversion (const char * name, unsigned long version)
|
||
|
|
{
|
||
|
|
#if HAVE_EXT2_IOCTLS
|
||
|
|
#if !APPLE_DARWIN
|
||
|
|
int fd, r, ver, save_errno = 0;
|
||
|
|
|
||
|
|
fd = open (name, OPEN_FLAGS);
|
||
|
|
if (fd == -1)
|
||
|
|
return -1;
|
||
|
|
ver = (int) version;
|
||
|
|
r = ioctl (fd, EXT2_IOC_SETVERSION, &ver);
|
||
|
|
if (r == -1)
|
||
|
|
save_errno = errno;
|
||
|
|
close (fd);
|
||
|
|
if (save_errno)
|
||
|
|
errno = save_errno;
|
||
|
|
return r;
|
||
|
|
#else
|
||
|
|
int ver = (int)version;
|
||
|
|
return syscall(SYS_fsctl, name, EXT2_IOC_SETVERSION, &ver, 0);
|
||
|
|
#endif
|
||
|
|
#else /* ! HAVE_EXT2_IOCTLS */
|
||
|
|
extern int errno;
|
||
|
|
errno = EOPNOTSUPP;
|
||
|
|
return -1;
|
||
|
|
#endif /* ! HAVE_EXT2_IOCTLS */
|
||
|
|
}
|