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#include <sys/param.h>
36#include <sys/disklabel.h>
37
38#include <ufs/ufs/dinode.h>
39#include <ufs/ffs/fs.h>
40
41#include <err.h>
42#include <errno.h>
43#include <fcntl.h>
44#include <libufs.h>
45#include <stdlib.h>
46#include <string.h>
47#include <stdio.h>
48#include <unistd.h>
49
50static void
51usage(void)
52{
53	(void)fprintf(stderr, "usage: clri special_device inode_number ...\n");
54	exit(1);
55}
56
57int
58main(int argc, char *argv[])
59{
60	union dinodep dp;
61	struct uufsd disk;
62	long generation;
63	int inonum, exitval;
64	char *fsname;
65
66	if (argc < 3)
67		usage();
68
69	/* get the superblock. */
70	fsname = *++argv;
71	if (ufs_disk_fillout(&disk, fsname) == -1) {
72		printf("loading superblock: %s\n", disk.d_error);
73		exit (1);
74	}
75
76	/* remaining arguments are inode numbers. */
77	exitval = 0;
78	while (*++argv) {
79		/* get the inode number. */
80		if ((inonum = atoi(*argv)) < UFS_ROOTINO) {
81			printf("%s is not a valid inode number", *argv);
82			exitval = 1;
83			continue;
84		}
85		(void)printf("clearing %d\n", inonum);
86
87		if (getinode(&disk, &dp, inonum) == -1) {
88			printf("getinode: %s\n", disk.d_error);
89			exitval = 1;
90			continue;
91		}
92		/* clear the inode, and bump the generation count. */
93		if (disk.d_fs.fs_magic == FS_UFS1_MAGIC) {
94			generation = dp.dp1->di_gen + 1;
95			memset(dp.dp1, 0, sizeof(*dp.dp1));
96			dp.dp1->di_gen = generation;
97		} else {
98			generation = dp.dp2->di_gen + 1;
99			memset(dp.dp2, 0, sizeof(*dp.dp2));
100			dp.dp2->di_gen = generation;
101		}
102		putinode(&disk);
103		(void)fsync(disk.d_fd);
104	}
105	(void)ufs_disk_close(&disk);
106	exit(exitval);
107}
108