Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 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 <stdio.h> |
| 9 | #include <unistd.h> |
| 10 | #include <stdlib.h> |
| 11 | #include <ctype.h> |
| 12 | #include <string.h> |
| 13 | #include <time.h> |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame] | 14 | #ifdef HAVE_ERRNO_H |
| 15 | #include <errno.h> |
| 16 | #endif |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 17 | #include <sys/types.h> |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 18 | |
| 19 | #include "debugfs.h" |
| 20 | |
| 21 | struct inode_info { |
Theodore Ts'o | b044c2e | 2001-01-11 15:26:39 +0000 | [diff] [blame] | 22 | ext2_ino_t ino; |
| 23 | ext2_ino_t parent; |
| 24 | char *pathname; |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 25 | }; |
| 26 | |
| 27 | struct inode_walk_struct { |
| 28 | struct inode_info *iarray; |
| 29 | int inodes_left; |
| 30 | int num_inodes; |
| 31 | int position; |
Theodore Ts'o | b044c2e | 2001-01-11 15:26:39 +0000 | [diff] [blame] | 32 | ext2_ino_t parent; |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 33 | }; |
| 34 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame] | 35 | static int ncheck_proc(struct ext2_dir_entry *dirent, |
Theodore Ts'o | 5443492 | 2003-12-07 01:28:50 -0500 | [diff] [blame] | 36 | int offset EXT2FS_ATTR((unused)), |
| 37 | int blocksize EXT2FS_ATTR((unused)), |
| 38 | char *buf EXT2FS_ATTR((unused)), |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame] | 39 | void *private) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 40 | { |
| 41 | struct inode_walk_struct *iw = (struct inode_walk_struct *) private; |
| 42 | int i; |
| 43 | |
| 44 | iw->position++; |
| 45 | if (iw->position <= 2) |
| 46 | return 0; |
| 47 | for (i=0; i < iw->num_inodes; i++) { |
| 48 | if (iw->iarray[i].ino == dirent->inode) { |
| 49 | iw->iarray[i].parent = iw->parent; |
| 50 | iw->inodes_left--; |
| 51 | } |
| 52 | } |
| 53 | if (!iw->inodes_left) |
| 54 | return DIRENT_ABORT; |
| 55 | |
| 56 | return 0; |
| 57 | } |
| 58 | |
| 59 | void do_ncheck(int argc, char **argv) |
| 60 | { |
| 61 | struct inode_walk_struct iw; |
| 62 | struct inode_info *iinfo; |
| 63 | int i; |
| 64 | ext2_inode_scan scan = 0; |
Theodore Ts'o | b044c2e | 2001-01-11 15:26:39 +0000 | [diff] [blame] | 65 | ext2_ino_t ino; |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 66 | struct ext2_inode inode; |
| 67 | errcode_t retval; |
| 68 | char *tmp; |
| 69 | |
| 70 | if (argc < 2) { |
| 71 | com_err(argv[0], 0, "Usage: ncheck <inode number> ..."); |
| 72 | return; |
| 73 | } |
| 74 | if (check_fs_open(argv[0])) |
| 75 | return; |
| 76 | |
| 77 | iw.iarray = malloc(sizeof(struct inode_info) * argc); |
| 78 | if (!iw.iarray) { |
| 79 | com_err("do_ncheck", ENOMEM, |
| 80 | "while allocating inode info array"); |
| 81 | return; |
| 82 | } |
| 83 | memset(iw.iarray, 0, sizeof(struct inode_info) * argc); |
| 84 | |
| 85 | for (i=1; i < argc; i++) { |
| 86 | iw.iarray[i-1].ino = strtol(argv[i], &tmp, 0); |
| 87 | if (*tmp) { |
| 88 | com_err(argv[0], 0, "Bad inode - %s", argv[i]); |
| 89 | return; |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | iw.num_inodes = iw.inodes_left = argc-1; |
| 94 | |
Theodore Ts'o | 1e3472c | 1997-04-29 14:53:37 +0000 | [diff] [blame] | 95 | retval = ext2fs_open_inode_scan(current_fs, 0, &scan); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 96 | if (retval) { |
| 97 | com_err("ncheck", retval, "while opening inode scan"); |
| 98 | goto error_out; |
| 99 | } |
| 100 | |
Theodore Ts'o | 643efb8 | 1999-11-08 19:27:13 +0000 | [diff] [blame] | 101 | do { |
| 102 | retval = ext2fs_get_next_inode(scan, &ino, &inode); |
| 103 | } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 104 | if (retval) { |
| 105 | com_err("ncheck", retval, "while starting inode scan"); |
| 106 | goto error_out; |
| 107 | } |
| 108 | |
| 109 | while (ino) { |
| 110 | if (!inode.i_links_count) |
| 111 | goto next; |
| 112 | /* |
| 113 | * To handle filesystems touched by 0.3c extfs; can be |
| 114 | * removed later. |
| 115 | */ |
| 116 | if (inode.i_dtime) |
| 117 | goto next; |
| 118 | /* Ignore anything that isn't a directory */ |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame] | 119 | if (!LINUX_S_ISDIR(inode.i_mode)) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 120 | goto next; |
| 121 | |
| 122 | iw.position = 0; |
| 123 | iw.parent = ino; |
| 124 | |
Theodore Ts'o | 1e3472c | 1997-04-29 14:53:37 +0000 | [diff] [blame] | 125 | retval = ext2fs_dir_iterate(current_fs, ino, 0, 0, |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 126 | ncheck_proc, &iw); |
| 127 | if (retval) { |
| 128 | com_err("ncheck", retval, |
| 129 | "while calling ext2_dir_iterate"); |
| 130 | goto next; |
| 131 | } |
| 132 | |
| 133 | if (iw.inodes_left == 0) |
| 134 | break; |
| 135 | |
| 136 | next: |
Theodore Ts'o | 643efb8 | 1999-11-08 19:27:13 +0000 | [diff] [blame] | 137 | do { |
| 138 | retval = ext2fs_get_next_inode(scan, &ino, &inode); |
| 139 | } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE); |
| 140 | |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 141 | if (retval) { |
| 142 | com_err("ncheck", retval, |
| 143 | "while doing inode scan"); |
| 144 | goto error_out; |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | for (i=0, iinfo = iw.iarray; i < iw.num_inodes; i++, iinfo++) { |
| 149 | if (iinfo->parent == 0) |
| 150 | continue; |
Theodore Ts'o | 1e3472c | 1997-04-29 14:53:37 +0000 | [diff] [blame] | 151 | retval = ext2fs_get_pathname(current_fs, iinfo->parent, |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 152 | iinfo->ino, &iinfo->pathname); |
| 153 | if (retval) |
| 154 | com_err("ncheck", retval, |
| 155 | "while resolving pathname for inode %d (%d)", |
| 156 | iinfo->parent, iinfo->ino); |
| 157 | } |
| 158 | |
| 159 | printf("Inode\tPathname\n"); |
| 160 | for (i=0, iinfo = iw.iarray; i < iw.num_inodes; i++, iinfo++) { |
| 161 | if (iinfo->parent == 0) { |
Theodore Ts'o | b044c2e | 2001-01-11 15:26:39 +0000 | [diff] [blame] | 162 | printf("%u\t<inode not found>\n", iinfo->ino); |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 163 | continue; |
| 164 | } |
Theodore Ts'o | b044c2e | 2001-01-11 15:26:39 +0000 | [diff] [blame] | 165 | printf("%u\t%s\n", iinfo->ino, iinfo->pathname ? |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 166 | iinfo->pathname : "<unknown pathname>"); |
| 167 | if (iinfo->pathname) |
| 168 | free(iinfo->pathname); |
| 169 | } |
| 170 | |
| 171 | error_out: |
| 172 | free(iw.iarray); |
| 173 | if (scan) |
| 174 | ext2fs_close_inode_scan(scan); |
| 175 | return; |
| 176 | } |
| 177 | |
| 178 | |
| 179 | |