1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/*
* 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 <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include <time.h>
#include <getopt.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "debugfs.h"
struct inode_info {
ino_t ino;
ino_t parent;
char *pathname;
};
struct inode_walk_struct {
struct inode_info *iarray;
int inodes_left;
int num_inodes;
int position;
ino_t parent;
};
int ncheck_proc(struct ext2_dir_entry *dirent,
int offset,
int blocksize,
char *buf,
void *private)
{
struct inode_walk_struct *iw = (struct inode_walk_struct *) private;
int i;
iw->position++;
if (iw->position <= 2)
return 0;
for (i=0; i < iw->num_inodes; i++) {
if (iw->iarray[i].ino == dirent->inode) {
iw->iarray[i].parent = iw->parent;
iw->inodes_left--;
}
}
if (!iw->inodes_left)
return DIRENT_ABORT;
return 0;
}
void do_ncheck(int argc, char **argv)
{
struct inode_walk_struct iw;
struct inode_info *iinfo;
int i;
ext2_inode_scan scan = 0;
ino_t ino;
struct ext2_inode inode;
errcode_t retval;
char *tmp;
if (argc < 2) {
com_err(argv[0], 0, "Usage: ncheck <inode number> ...");
return;
}
if (check_fs_open(argv[0]))
return;
iw.iarray = malloc(sizeof(struct inode_info) * argc);
if (!iw.iarray) {
com_err("do_ncheck", ENOMEM,
"while allocating inode info array");
return;
}
memset(iw.iarray, 0, sizeof(struct inode_info) * argc);
for (i=1; i < argc; i++) {
iw.iarray[i-1].ino = strtol(argv[i], &tmp, 0);
if (*tmp) {
com_err(argv[0], 0, "Bad inode - %s", argv[i]);
return;
}
}
iw.num_inodes = iw.inodes_left = argc-1;
retval = ext2fs_open_inode_scan(fs, 0, &scan);
if (retval) {
com_err("ncheck", retval, "while opening inode scan");
goto error_out;
}
retval = ext2fs_get_next_inode(scan, &ino, &inode);
if (retval) {
com_err("ncheck", retval, "while starting inode scan");
goto error_out;
}
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 (!S_ISDIR(inode.i_mode))
goto next;
iw.position = 0;
iw.parent = ino;
retval = ext2fs_dir_iterate(fs, ino, 0, 0,
ncheck_proc, &iw);
if (retval) {
com_err("ncheck", retval,
"while calling ext2_dir_iterate");
goto next;
}
if (iw.inodes_left == 0)
break;
next:
retval = ext2fs_get_next_inode(scan, &ino, &inode);
if (retval) {
com_err("ncheck", retval,
"while doing inode scan");
goto error_out;
}
}
for (i=0, iinfo = iw.iarray; i < iw.num_inodes; i++, iinfo++) {
if (iinfo->parent == 0)
continue;
retval = ext2fs_get_pathname(fs, iinfo->parent,
iinfo->ino, &iinfo->pathname);
if (retval)
com_err("ncheck", retval,
"while resolving pathname for inode %d (%d)",
iinfo->parent, iinfo->ino);
}
printf("Inode\tPathname\n");
for (i=0, iinfo = iw.iarray; i < iw.num_inodes; i++, iinfo++) {
if (iinfo->parent == 0) {
printf("%ld\t<inode not found>\n", iinfo->ino);
continue;
}
printf("%ld\t%s\n", iinfo->ino, iinfo->pathname ?
iinfo->pathname : "<unknown pathname>");
if (iinfo->pathname)
free(iinfo->pathname);
}
error_out:
free(iw.iarray);
if (scan)
ext2fs_close_inode_scan(scan);
return;
}
|
