1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1990, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Rich $alz of BBN Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#if 0
36#ifndef lint
37static const char copyright[] =
38"@(#) Copyright (c) 1990, 1993\n\
39	The Regents of the University of California.  All rights reserved.\n";
40#endif /* not lint */
41
42#ifndef lint
43static char sccsid[] = "@(#)clri.c	8.2 (Berkeley) 9/23/93";
44#endif /* not lint */
45#endif
46
47#include <sys/cdefs.h>
48__FBSDID("$FreeBSD$");
49
50#include <sys/param.h>
51#include <sys/disklabel.h>
52
53#include <ufs/ufs/dinode.h>
54#include <ufs/ffs/fs.h>
55
56#include <err.h>
57#include <errno.h>
58#include <fcntl.h>
59#include <libufs.h>
60#include <stdlib.h>
61#include <string.h>
62#include <stdio.h>
63#include <unistd.h>
64
65static void
66usage(void)
67{
68	(void)fprintf(stderr, "usage: clri special_device inode_number ...\n");
69	exit(1);
70}
71
72int
73main(int argc, char *argv[])
74{
75	union dinodep dp;
76	struct uufsd disk;
77	long generation;
78	int inonum, exitval;
79	char *fsname;
80
81	if (argc < 3)
82		usage();
83
84	/* get the superblock. */
85	fsname = *++argv;
86	if (ufs_disk_fillout(&disk, fsname) == -1) {
87		printf("loading superblock: %s\n", disk.d_error);
88		exit (1);
89	}
90
91	/* remaining arguments are inode numbers. */
92	exitval = 0;
93	while (*++argv) {
94		/* get the inode number. */
95		if ((inonum = atoi(*argv)) < UFS_ROOTINO) {
96			printf("%s is not a valid inode number", *argv);
97			exitval = 1;
98			continue;
99		}
100		(void)printf("clearing %d\n", inonum);
101
102		if (getinode(&disk, &dp, inonum) == -1) {
103			printf("getinode: %s\n", disk.d_error);
104			exitval = 1;
105			continue;
106		}
107		/* clear the inode, and bump the generation count. */
108		if (disk.d_fs.fs_magic == FS_UFS1_MAGIC) {
109			generation = dp.dp1->di_gen + 1;
110			memset(dp.dp1, 0, sizeof(*dp.dp1));
111			dp.dp1->di_gen = generation;
112		} else {
113			generation = dp.dp2->di_gen + 1;
114			memset(dp.dp2, 0, sizeof(*dp.dp2));
115			dp.dp2->di_gen = generation;
116		}
117		putinode(&disk);
118		(void)fsync(disk.d_fd);
119	}
120	(void)ufs_disk_close(&disk);
121	exit(exitval);
122}
123