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
50 static void
usage(void)51 usage(void)
52 {
53 (void)fprintf(stderr, "usage: clri special_device inode_number ...\n");
54 exit(1);
55 }
56
57 int
main(int argc,char * argv[])58 main(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