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 37 static 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 43 static char sccsid[] = "@(#)clri.c 8.2 (Berkeley) 9/23/93"; 44 #endif /* not lint */ 45 #endif 46 47 #include <sys/cdefs.h> 48 #include <sys/param.h> 49 #include <sys/disklabel.h> 50 51 #include <ufs/ufs/dinode.h> 52 #include <ufs/ffs/fs.h> 53 54 #include <err.h> 55 #include <errno.h> 56 #include <fcntl.h> 57 #include <libufs.h> 58 #include <stdlib.h> 59 #include <string.h> 60 #include <stdio.h> 61 #include <unistd.h> 62 63 static void 64 usage(void) 65 { 66 (void)fprintf(stderr, "usage: clri special_device inode_number ...\n"); 67 exit(1); 68 } 69 70 int 71 main(int argc, char *argv[]) 72 { 73 union dinodep dp; 74 struct uufsd disk; 75 long generation; 76 int inonum, exitval; 77 char *fsname; 78 79 if (argc < 3) 80 usage(); 81 82 /* get the superblock. */ 83 fsname = *++argv; 84 if (ufs_disk_fillout(&disk, fsname) == -1) { 85 printf("loading superblock: %s\n", disk.d_error); 86 exit (1); 87 } 88 89 /* remaining arguments are inode numbers. */ 90 exitval = 0; 91 while (*++argv) { 92 /* get the inode number. */ 93 if ((inonum = atoi(*argv)) < UFS_ROOTINO) { 94 printf("%s is not a valid inode number", *argv); 95 exitval = 1; 96 continue; 97 } 98 (void)printf("clearing %d\n", inonum); 99 100 if (getinode(&disk, &dp, inonum) == -1) { 101 printf("getinode: %s\n", disk.d_error); 102 exitval = 1; 103 continue; 104 } 105 /* clear the inode, and bump the generation count. */ 106 if (disk.d_fs.fs_magic == FS_UFS1_MAGIC) { 107 generation = dp.dp1->di_gen + 1; 108 memset(dp.dp1, 0, sizeof(*dp.dp1)); 109 dp.dp1->di_gen = generation; 110 } else { 111 generation = dp.dp2->di_gen + 1; 112 memset(dp.dp2, 0, sizeof(*dp.dp2)); 113 dp.dp2->di_gen = generation; 114 } 115 putinode(&disk); 116 (void)fsync(disk.d_fd); 117 } 118 (void)ufs_disk_close(&disk); 119 exit(exitval); 120 } 121