1 /* 2 * ncheck.c --- given a list of inodes, generate a list of names 3 * 4 * Copyright (C) 1994 Theodore Ts'o. This file may be redistributed 5 * under the terms of the GNU Public License. 6 */ 7 8 #include "config.h" 9 #include <stdio.h> 10 #include <unistd.h> 11 #include <stdlib.h> 12 #include <ctype.h> 13 #include <string.h> 14 #include <time.h> 15 #ifdef HAVE_ERRNO_H 16 #include <errno.h> 17 #endif 18 #include <sys/types.h> 19 #ifdef HAVE_GETOPT_H 20 #include <getopt.h> 21 #else 22 extern int optind; 23 extern char *optarg; 24 #endif 25 26 #include "debugfs.h" 27 28 struct inode_walk_struct { 29 ext2_ino_t dir; 30 ext2_ino_t *iarray; 31 int inodes_left; 32 int num_inodes; 33 int position; 34 char *parent; 35 unsigned int get_pathname_failed:1; 36 unsigned int check_dirent:1; 37 }; 38 39 static int ncheck_proc(struct ext2_dir_entry *dirent, 40 int offset EXT2FS_ATTR((unused)), 41 int blocksize EXT2FS_ATTR((unused)), 42 char *buf EXT2FS_ATTR((unused)), 43 void *private) 44 { 45 struct inode_walk_struct *iw = (struct inode_walk_struct *) private; 46 struct ext2_inode inode; 47 errcode_t retval; 48 int filetype = ext2fs_dirent_file_type(dirent); 49 int i; 50 51 iw->position++; 52 if (iw->position <= 2) 53 return 0; 54 for (i=0; i < iw->num_inodes; i++) { 55 if (iw->iarray[i] == dirent->inode) { 56 if (!iw->parent && !iw->get_pathname_failed) { 57 retval = ext2fs_get_pathname(current_fs, 58 iw->dir, 59 0, &iw->parent); 60 if (retval) { 61 com_err("ncheck", retval, 62 "while calling ext2fs_get_pathname for inode #%u", iw->dir); 63 iw->get_pathname_failed = 1; 64 } 65 } 66 if (iw->parent) 67 printf("%u\t%s/%.*s", iw->iarray[i], 68 iw->parent, 69 ext2fs_dirent_name_len(dirent), 70 dirent->name); 71 else 72 printf("%u\t<%u>/%.*s", iw->iarray[i], 73 iw->dir, 74 ext2fs_dirent_name_len(dirent), 75 dirent->name); 76 if (iw->check_dirent && filetype) { 77 if (!debugfs_read_inode(dirent->inode, &inode, 78 "ncheck") && 79 filetype != ext2_file_type(inode.i_mode)) { 80 printf(" <--- BAD FILETYPE"); 81 } 82 } 83 putc('\n', stdout); 84 } 85 } 86 if (!iw->inodes_left) 87 return DIRENT_ABORT; 88 89 return 0; 90 } 91 92 void do_ncheck(int argc, char **argv) 93 { 94 struct inode_walk_struct iw; 95 int c, i; 96 ext2_inode_scan scan = 0; 97 ext2_ino_t ino; 98 struct ext2_inode inode; 99 errcode_t retval; 100 char *tmp; 101 102 iw.check_dirent = 0; 103 104 reset_getopt(); 105 while ((c = getopt (argc, argv, "c")) != EOF) { 106 switch (c) { 107 case 'c': 108 iw.check_dirent = 1; 109 break; 110 default: 111 goto print_usage; 112 } 113 } 114 argc -= optind; 115 argv += optind; 116 117 if (argc < 1) { 118 print_usage: 119 com_err(argv[0], 0, "Usage: ncheck [-c] <inode number> ..."); 120 return; 121 } 122 if (check_fs_open(argv[0])) 123 return; 124 125 iw.iarray = malloc(sizeof(ext2_ino_t) * argc); 126 if (!iw.iarray) { 127 com_err("ncheck", ENOMEM, 128 "while allocating inode number array"); 129 return; 130 } 131 memset(iw.iarray, 0, sizeof(ext2_ino_t) * argc); 132 133 for (i=0; i < argc; i++) { 134 iw.iarray[i] = strtol(argv[i], &tmp, 0); 135 if (*tmp) { 136 com_err(argv[0], 0, "Bad inode - %s", argv[i]); 137 goto error_out; 138 } 139 } 140 141 iw.num_inodes = iw.inodes_left = argc; 142 143 retval = ext2fs_open_inode_scan(current_fs, 0, &scan); 144 if (retval) { 145 com_err("ncheck", retval, "while opening inode scan"); 146 goto error_out; 147 } 148 149 do { 150 retval = ext2fs_get_next_inode(scan, &ino, &inode); 151 } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE); 152 if (retval) { 153 com_err("ncheck", retval, "while starting inode scan"); 154 goto error_out; 155 } 156 157 printf("Inode\tPathname\n"); 158 while (ino) { 159 if (!inode.i_links_count) 160 goto next; 161 /* 162 * To handle filesystems touched by 0.3c extfs; can be 163 * removed later. 164 */ 165 if (inode.i_dtime) 166 goto next; 167 /* Ignore anything that isn't a directory */ 168 if (!LINUX_S_ISDIR(inode.i_mode)) 169 goto next; 170 171 iw.position = 0; 172 iw.parent = 0; 173 iw.dir = ino; 174 iw.get_pathname_failed = 0; 175 176 retval = ext2fs_dir_iterate(current_fs, ino, 0, 0, 177 ncheck_proc, &iw); 178 ext2fs_free_mem(&iw.parent); 179 if (retval) { 180 com_err("ncheck", retval, 181 "while calling ext2_dir_iterate"); 182 goto next; 183 } 184 185 if (iw.inodes_left == 0) 186 break; 187 188 next: 189 do { 190 retval = ext2fs_get_next_inode(scan, &ino, &inode); 191 } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE); 192 193 if (retval) { 194 com_err("ncheck", retval, 195 "while doing inode scan"); 196 goto error_out; 197 } 198 } 199 200 error_out: 201 free(iw.iarray); 202 if (scan) 203 ext2fs_close_inode_scan(scan); 204 return; 205 } 206 207 208 209
