diff options
Diffstat (limited to 'debugfs/ncheck.c')
| -rw-r--r-- | debugfs/ncheck.c | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/debugfs/ncheck.c b/debugfs/ncheck.c new file mode 100644 index 0000000..963b3a1 --- /dev/null +++ b/debugfs/ncheck.c @@ -0,0 +1,223 @@ +/* + * ncheck.c --- given a list of inodes, generate a list of names + * + * Copyright (C) 1994 Theodore Ts'o. This file may be redistributed + * under the terms of the GNU Public License. + */ + +#include "config.h" +#include <stdio.h> +#include <unistd.h> +#include <stdlib.h> +#include <ctype.h> +#include <string.h> +#include <time.h> +#ifdef HAVE_ERRNO_H +#include <errno.h> +#endif +#include <sys/types.h> +#ifdef HAVE_GETOPT_H +#include <getopt.h> +#else +extern int optind; +extern char *optarg; +#endif + +#include "debugfs.h" + +struct inode_walk_struct { + ext2_ino_t dir; + ext2_ino_t *iarray; + int names_left; + int num_inodes; + int position; + char *parent; + unsigned int get_pathname_failed:1; + unsigned int check_dirent:1; +}; + +static int ncheck_proc(struct ext2_dir_entry *dirent, + int offset EXT2FS_ATTR((unused)), + int blocksize EXT2FS_ATTR((unused)), + char *buf EXT2FS_ATTR((unused)), + void *private) +{ + struct inode_walk_struct *iw = (struct inode_walk_struct *) private; + struct ext2_inode inode; + errcode_t retval; + int filetype = ext2fs_dirent_file_type(dirent); + int i; + + iw->position++; + if (iw->position <= 2) + return 0; + for (i=0; i < iw->num_inodes; i++) { + if (iw->iarray[i] == dirent->inode) { + if (!iw->parent && !iw->get_pathname_failed) { + retval = ext2fs_get_pathname(current_fs, + iw->dir, + 0, &iw->parent); + if (retval) { + com_err("ncheck", retval, + "while calling ext2fs_get_pathname for inode #%u", iw->dir); + iw->get_pathname_failed = 1; + } + } + if (iw->parent) + printf("%u\t%s/%.*s", iw->iarray[i], + iw->parent, + ext2fs_dirent_name_len(dirent), + dirent->name); + else + printf("%u\t<%u>/%.*s", iw->iarray[i], + iw->dir, + ext2fs_dirent_name_len(dirent), + dirent->name); + if (iw->check_dirent && filetype) { + if (!debugfs_read_inode(dirent->inode, &inode, + "ncheck") && + filetype != ext2_file_type(inode.i_mode)) { + printf(" <--- BAD FILETYPE"); + } + } + putc('\n', stdout); + iw->names_left--; + } + } + if (!iw->names_left) + return DIRENT_ABORT; + + return 0; +} + +void do_ncheck(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)), + void *infop EXT2FS_ATTR((unused))) +{ + struct inode_walk_struct iw; + int c, i; + ext2_inode_scan scan = 0; + ext2_ino_t ino; + struct ext2_inode inode; + errcode_t retval; + char *tmp; + + iw.check_dirent = 0; + + reset_getopt(); + while ((c = getopt (argc, argv, "c")) != EOF) { + switch (c) { + case 'c': + iw.check_dirent = 1; + break; + default: + goto print_usage; + } + } + + if (argc <= 1) { + print_usage: + com_err(argv[0], 0, "Usage: ncheck [-c] <inode number> ..."); + return; + } + if (check_fs_open(argv[0])) + return; + + argc -= optind; + argv += optind; + iw.iarray = malloc(sizeof(ext2_ino_t) * argc); + if (!iw.iarray) { + com_err("ncheck", ENOMEM, + "while allocating inode number array"); + return; + } + memset(iw.iarray, 0, sizeof(ext2_ino_t) * argc); + + iw.names_left = 0; + for (i=0; i < argc; i++) { + char *str = argv[i]; + int len = strlen(str); + + if ((len > 2) && (str[0] == '<') && (str[len - 1] == '>')) + str++; + iw.iarray[i] = strtol(str, &tmp, 0); + if (*tmp && (str == argv[i] || *tmp != '>')) { + com_err("ncheck", 0, "Invalid inode number - '%s'", + argv[i]); + goto error_out; + } + if (debugfs_read_inode(iw.iarray[i], &inode, *argv)) + goto error_out; + if (LINUX_S_ISDIR(inode.i_mode)) + iw.names_left += 1; + else + iw.names_left += inode.i_links_count; + } + + iw.num_inodes = argc; + + retval = ext2fs_open_inode_scan(current_fs, 0, &scan); + if (retval) { + com_err("ncheck", retval, "while opening inode scan"); + goto error_out; + } + + do { + retval = ext2fs_get_next_inode(scan, &ino, &inode); + } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE); + if (retval) { + com_err("ncheck", retval, "while starting inode scan"); + goto error_out; + } + + printf("Inode\tPathname\n"); + while (ino) { + if (!inode.i_links_count) + goto next; + /* + * To handle filesystems touched by 0.3c extfs; can be + * removed later. + */ + if (inode.i_dtime) + goto next; + /* Ignore anything that isn't a directory */ + if (!LINUX_S_ISDIR(inode.i_mode)) + goto next; + + iw.position = 0; + iw.parent = 0; + iw.dir = ino; + iw.get_pathname_failed = 0; + + retval = ext2fs_dir_iterate(current_fs, ino, 0, 0, + ncheck_proc, &iw); + ext2fs_free_mem(&iw.parent); + if (retval) { + com_err("ncheck", retval, + "while calling ext2_dir_iterate"); + goto next; + } + + if (iw.names_left == 0) + break; + + next: + do { + retval = ext2fs_get_next_inode(scan, &ino, &inode); + } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE); + + if (retval) { + com_err("ncheck", retval, + "while doing inode scan"); + goto error_out; + } + } + +error_out: + free(iw.iarray); + if (scan) + ext2fs_close_inode_scan(scan); + return; +} + + + |