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 blk_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 >= fs->super->s_blocks_count) {
67 if (!ext2fs_test_block_bitmap(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_iterate2(current_fs, ino, 0, block_buf,
146 com_err("ls_deleted_inodes", retval,
147 "while calling ext2fs_block_iterate2");
150 if (lsd.free_blocks && !lsd.bad_blocks) {
151 if (num_delarray >= max_delarray) {
153 delarray = realloc(delarray,
154 max_delarray * sizeof(struct deleted_info));
156 com_err("ls_deleted_inodes",
158 "while reallocating array");
163 delarray[num_delarray].ino = ino;
164 delarray[num_delarray].mode = inode.i_mode;
165 delarray[num_delarray].uid = inode_uid(inode);
166 delarray[num_delarray].size = inode.i_size;
167 if (!LINUX_S_ISDIR(inode.i_mode))
168 delarray[num_delarray].size |=
169 ((__u64) inode.i_size_high << 32);
170 delarray[num_delarray].dtime = inode.i_dtime;
171 delarray[num_delarray].num_blocks = lsd.num_blocks;
172 delarray[num_delarray].free_blocks = lsd.free_blocks;
178 retval = ext2fs_get_next_inode(scan, &ino, &inode);
179 } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE);
181 com_err("ls_deleted_inodes", retval,
182 "while doing inode scan");
189 fprintf(out, " Inode Owner Mode Size Blocks Time deleted\n");
191 qsort(delarray, num_delarray, sizeof(struct deleted_info),
192 deleted_info_compare);
194 for (i = 0; i < num_delarray; i++) {
195 fprintf(out, "%6u %6d %6o %6llu %6lld/%6lld %s",
197 delarray[i].uid, delarray[i].mode, delarray[i].size,
198 delarray[i].free_blocks, delarray[i].num_blocks,
199 time_to_string(delarray[i].dtime));
201 fprintf(out, "%d deleted inodes found.\n", num_delarray);
208 ext2fs_close_inode_scan(scan);