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 names_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 iw->names_left--; 85 } 86 } 87 if (!iw->names_left) 88 return DIRENT_ABORT; 89 90 return 0; 91 } 92 93 void do_ncheck(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)), 94 void *infop EXT2FS_ATTR((unused))) 95 { 96 struct inode_walk_struct iw; 97 int c, i; 98 ext2_inode_scan scan = 0; 99 ext2_ino_t ino; 100 struct ext2_inode inode; 101 errcode_t retval; 102 char *tmp; 103 104 iw.check_dirent = 0; 105 106 reset_getopt(); 107 while ((c = getopt (argc, argv, "c")) != EOF) { 108 switch (c) { 109 case 'c': 110 iw.check_dirent = 1; 111 break; 112 default: 113 goto print_usage; 114 } 115 } 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 argc -= optind; 126 argv += optind; 127 iw.iarray = malloc(sizeof(ext2_ino_t) * argc); 128 if (!iw.iarray) { 129 com_err("ncheck", ENOMEM, 130 "while allocating inode number array"); 131 return; 132 } 133 memset(iw.iarray, 0, sizeof(ext2_ino_t) * argc); 134 135 iw.names_left = 0; 136 for (i=0; i < argc; i++) { 137 iw.iarray[i] = strtol(argv[i], &tmp, 0); 138 if (*tmp) { 139 com_err("ncheck", 0, "Bad inode - %s", argv[i]); 140 goto error_out; 141 } 142 if (debugfs_read_inode(iw.iarray[i], &inode, *argv)) 143 goto error_out; 144 if (LINUX_S_ISDIR(inode.i_mode)) 145 iw.names_left += 1; 146 else 147 iw.names_left += inode.i_links_count; 148 } 149 150 iw.num_inodes = argc; 151 152 retval = ext2fs_open_inode_scan(current_fs, 0, &scan); 153 if (retval) { 154 com_err("ncheck", retval, "while opening inode scan"); 155 goto error_out; 156 } 157 158 do { 159 retval = ext2fs_get_next_inode(scan, &ino, &inode); 160 } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE); 161 if (retval) { 162 com_err("ncheck", retval, "while starting inode scan"); 163 goto error_out; 164 } 165 166 printf("Inode\tPathname\n"); 167 while (ino) { 168 if (!inode.i_links_count) 169 goto next; 170 /* 171 * To handle filesystems touched by 0.3c extfs; can be 172 * removed later. 173 */ 174 if (inode.i_dtime) 175 goto next; 176 /* Ignore anything that isn't a directory */ 177 if (!LINUX_S_ISDIR(inode.i_mode)) 178 goto next; 179 180 iw.position = 0; 181 iw.parent = 0; 182 iw.dir = ino; 183 iw.get_pathname_failed = 0; 184 185 retval = ext2fs_dir_iterate(current_fs, ino, 0, 0, 186 ncheck_proc, &iw); 187 ext2fs_free_mem(&iw.parent); 188 if (retval) { 189 com_err("ncheck", retval, 190 "while calling ext2_dir_iterate"); 191 goto next; 192 } 193 194 if (iw.names_left == 0) 195 break; 196 197 next: 198 do { 199 retval = ext2fs_get_next_inode(scan, &ino, &inode); 200 } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE); 201 202 if (retval) { 203 com_err("ncheck", retval, 204 "while doing inode scan"); 205 goto error_out; 206 } 207 } 208 209 error_out: 210 free(iw.iarray); 211 if (scan) 212 ext2fs_close_inode_scan(scan); 213 return; 214 } 215 216 217 218
