2 * lsdel.c --- routines to try to help a user recover a deleted file.
4 * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
5 * Theodore Ts'o. This file may be redistributed under the terms of
6 * the GNU Public License.
18 #include <sys/types.h>
29 e2_blkcnt_t num_blocks
;
30 e2_blkcnt_t free_blocks
;
35 e2_blkcnt_t num_blocks
;
36 e2_blkcnt_t free_blocks
;
37 e2_blkcnt_t bad_blocks
;
40 static int deleted_info_compare(const void *a
, const void *b
)
42 const struct deleted_info
*arg1
, *arg2
;
44 arg1
= (const struct deleted_info
*) a
;
45 arg2
= (const struct deleted_info
*) b
;
47 return arg1
->dtime
- arg2
->dtime
;
50 static int lsdel_proc(ext2_filsys fs
,
52 e2_blkcnt_t blockcnt
EXT2FS_ATTR((unused
)),
53 blk64_t ref_block
EXT2FS_ATTR((unused
)),
54 int ref_offset
EXT2FS_ATTR((unused
)),
57 struct lsdel_struct
*lsd
= (struct lsdel_struct
*) private;
61 if (*block_nr
< fs
->super
->s_first_data_block
||
62 *block_nr
>= ext2fs_blocks_count(fs
->super
)) {
67 if (!ext2fs_test_block_bitmap2(fs
->block_map
,*block_nr
))
73 void do_lsdel(int argc
, char **argv
)
75 struct lsdel_struct lsd
;
76 struct deleted_info
*delarray
;
77 int num_delarray
, max_delarray
;
78 ext2_inode_scan scan
= 0;
80 struct ext2_inode inode
;
89 if (common_args_process(argc
, argv
, 1, 2, "ls_deleted_inodes",
94 secs
= strtol(argv
[1],&tmp
,0);
96 com_err(argv
[0], 0, "Bad time - %s",argv
[1]);
101 now
= current_fs
->now
? current_fs
->now
: time(0);
104 delarray
= malloc(max_delarray
* sizeof(struct deleted_info
));
106 com_err("ls_deleted_inodes", ENOMEM
,
107 "while allocating deleted information storage");
111 block_buf
= malloc(current_fs
->blocksize
* 3);
113 com_err("ls_deleted_inodes", ENOMEM
, "while allocating block buffer");
117 retval
= ext2fs_open_inode_scan(current_fs
, 0, &scan
);
119 com_err("ls_deleted_inodes", retval
,
120 "while opening inode scan");
125 retval
= ext2fs_get_next_inode(scan
, &ino
, &inode
);
126 } while (retval
== EXT2_ET_BAD_BLOCK_IN_INODE_TABLE
);
128 com_err("ls_deleted_inodes", retval
,
129 "while starting inode scan");
134 if ((inode
.i_dtime
== 0) ||
135 (secs
&& ((unsigned) abs(now
- secs
) > inode
.i_dtime
)))
143 retval
= ext2fs_block_iterate3(current_fs
, ino
,
144 BLOCK_FLAG_READ_ONLY
, block_buf
,
147 com_err("ls_deleted_inodes", retval
,
148 "while calling ext2fs_block_iterate2");
151 if (lsd
.free_blocks
&& !lsd
.bad_blocks
) {
152 if (num_delarray
>= max_delarray
) {
154 delarray
= realloc(delarray
,
155 max_delarray
* sizeof(struct deleted_info
));
157 com_err("ls_deleted_inodes",
159 "while reallocating array");
164 delarray
[num_delarray
].ino
= ino
;
165 delarray
[num_delarray
].mode
= inode
.i_mode
;
166 delarray
[num_delarray
].uid
= inode_uid(inode
);
167 delarray
[num_delarray
].size
= inode
.i_size
;
168 if (!LINUX_S_ISDIR(inode
.i_mode
))
169 delarray
[num_delarray
].size
|=
170 ((__u64
) inode
.i_size_high
<< 32);
171 delarray
[num_delarray
].dtime
= inode
.i_dtime
;
172 delarray
[num_delarray
].num_blocks
= lsd
.num_blocks
;
173 delarray
[num_delarray
].free_blocks
= lsd
.free_blocks
;
179 retval
= ext2fs_get_next_inode(scan
, &ino
, &inode
);
180 } while (retval
== EXT2_ET_BAD_BLOCK_IN_INODE_TABLE
);
182 com_err("ls_deleted_inodes", retval
,
183 "while doing inode scan");
190 fprintf(out
, " Inode Owner Mode Size Blocks Time deleted\n");
192 qsort(delarray
, num_delarray
, sizeof(struct deleted_info
),
193 deleted_info_compare
);
195 for (i
= 0; i
< num_delarray
; i
++) {
196 fprintf(out
, "%6u %6d %6o %6llu %6lld/%6lld %s",
198 delarray
[i
].uid
, delarray
[i
].mode
, delarray
[i
].size
,
199 delarray
[i
].free_blocks
, delarray
[i
].num_blocks
,
200 time_to_string(delarray
[i
].dtime
));
202 fprintf(out
, "%d deleted inodes found.\n", num_delarray
);
209 ext2fs_close_inode_scan(scan
);