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/*
* 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;
}
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