fsirand.c revision 6451fdbca2f79129a3a09d2fe3f6dd4d062bebff
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Portions of this source code were derived from Berkeley 4.3 BSD
* under license from the Regents of the University of California.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* fsirand installs random inode generation numbers on all the inodes on
* device <special>, and also installs a file system ID in the superblock.
* This helps increase the security of file systems exported by NFS.
*/
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>
#include <strings.h>
#include <unistd.h>
#include <stdlib.h>
int
{
int fd;
char *dev;
int bno;
int i, n;
int bsize;
int pflag = 0;
argv++;
argc--;
pflag++;
argv++;
argc--;
}
if (argc <= 0) {
exit(1);
}
if (fd == -1) {
exit(1);
}
"fsirand: Seek to superblock failed: %s\n",
exit(1);
}
"fsirand: Read of superblock failed: %s\n",
exit(1);
}
"fsirand: Not a file system (bad magic number in superblock)\n");
exit(1);
}
"fsirand: Unrecognized UFS format version number %d (in superblock)\n",
fs->fs_version);
exit(1);
}
"fsirand: Unrecognized UFS format version number %d (in superblock)\n",
fs->fs_version);
exit(1);
}
if (pflag) {
} else {
n = getpid();
}
inum = 0;
"fsirand: Seek to %ld %ld failed: %s\n",
exit(1);
}
if (n != bsize) {
"fsirand: Read of ilist block failed: %s\n",
exit(1);
}
if (pflag) {
} else {
}
inum++;
}
if (!pflag) {
"fsirand: Seek to %ld %ld failed: %s\n",
exit(1);
}
if (n != bsize) {
"fsirand: Write of ilist block failed: %s\n",
exit(1);
}
}
}
if (!pflag) {
"fsirand: Seek to superblock failed: %s\n",
exit(1);
}
"fsirand: Write of superblock failed: %s\n",
exit(1);
}
}
"fsirand: Seek to alternate superblock failed: %s\n",
exit(1);
}
if (pflag) {
"fsirand: Read of alternate superblock failed: %s\n",
exit(1);
}
"fsirand: Not a valid file system (bad "
"magic number in alternate superblock)\n");
exit(1);
}
} else {
"fsirand: Write of alternate superblock failed: %s\n",
exit(1);
}
}
}
return (0);
}