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.
19 #include <sys/types.h>
30 e2_blkcnt_t num_blocks;
31 e2_blkcnt_t free_blocks;
36 e2_blkcnt_t num_blocks;
37 e2_blkcnt_t free_blocks;
38 e2_blkcnt_t bad_blocks;
41 static int deleted_info_compare(const void *a, const void *b)
43 const struct deleted_info *arg1, *arg2;
45 arg1 = (const struct deleted_info *) a;
46 arg2 = (const struct deleted_info *) b;
48 return arg1->dtime - arg2->dtime;
51 static int lsdel_proc(ext2_filsys fs,
53 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
54 blk64_t ref_block EXT2FS_ATTR((unused)),
55 int ref_offset EXT2FS_ATTR((unused)),
58 struct lsdel_struct *lsd = (struct lsdel_struct *) private;
62 if (*block_nr < fs->super->s_first_data_block ||
63 *block_nr >= ext2fs_blocks_count(fs->super)) {
68 if (!ext2fs_test_block_bitmap2(fs->block_map,*block_nr))
74 void do_lsdel(int argc, char **argv)
76 struct lsdel_struct lsd;
77 struct deleted_info *delarray;
78 int num_delarray, max_delarray;
79 ext2_inode_scan scan = 0;
81 struct ext2_inode inode;
90 if (common_args_process(argc, argv, 1, 2, "ls_deleted_inodes",
95 secs = strtol(argv[1],&tmp,0);
97 com_err(argv[0], 0, "Bad time - %s",argv[1]);
102 now = current_fs->now ? current_fs->now : time(0);
105 delarray = malloc(max_delarray * sizeof(struct deleted_info));
107 com_err("ls_deleted_inodes", ENOMEM,
108 "while allocating deleted information storage");
112 block_buf = malloc(current_fs->blocksize * 3);
114 com_err("ls_deleted_inodes", ENOMEM, "while allocating block buffer");
118 retval = ext2fs_open_inode_scan(current_fs, 0, &scan);
120 com_err("ls_deleted_inodes", retval,
121 "while opening inode scan");
126 retval = ext2fs_get_next_inode(scan, &ino, &inode);
127 } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE);
129 com_err("ls_deleted_inodes", retval,
130 "while starting inode scan");
135 if ((inode.i_dtime == 0) ||
136 (secs && ((unsigned) abs(now - secs) > inode.i_dtime)))
144 retval = ext2fs_block_iterate3(current_fs, ino,
145 BLOCK_FLAG_READ_ONLY, block_buf,
148 com_err("ls_deleted_inodes", retval,
149 "while calling ext2fs_block_iterate2");
152 if (lsd.free_blocks && !lsd.bad_blocks) {
153 if (num_delarray >= max_delarray) {
155 delarray = realloc(delarray,
156 max_delarray * sizeof(struct deleted_info));
158 com_err("ls_deleted_inodes",
160 "while reallocating array");
165 delarray[num_delarray].ino = ino;
166 delarray[num_delarray].mode = inode.i_mode;
167 delarray[num_delarray].uid = inode_uid(inode);
168 delarray[num_delarray].size = EXT2_I_SIZE(&inode);
169 delarray[num_delarray].dtime = inode.i_dtime;
170 delarray[num_delarray].num_blocks = lsd.num_blocks;
171 delarray[num_delarray].free_blocks = lsd.free_blocks;
177 retval = ext2fs_get_next_inode(scan, &ino, &inode);
178 } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE);
180 com_err("ls_deleted_inodes", retval,
181 "while doing inode scan");
188 fprintf(out, " Inode Owner Mode Size Blocks Time deleted\n");
190 qsort(delarray, num_delarray, sizeof(struct deleted_info),
191 deleted_info_compare);
193 for (i = 0; i < num_delarray; i++) {
194 fprintf(out, "%6u %6d %6o %6llu %6lld/%6lld %s",
196 delarray[i].uid, delarray[i].mode, delarray[i].size,
197 delarray[i].free_blocks, delarray[i].num_blocks,
198 time_to_string(delarray[i].dtime));
200 fprintf(out, "%d deleted inodes found.\n", num_delarray);
207 ext2fs_close_inode_scan(scan);