src/clone_fs.c


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

#include "project.h"


int clone_fs (ext2_filsys src_fs, ext2_filsys dst_fs)
{
  int skip;
  int ret;
  ext2_inode_scan scan;
  ext2_ino_t i_num;
  struct ext2_inode src_i;

  EXT2_MOAN_FAIL (ret, ext2fs_open_inode_scan (src_fs, 0, &scan));

  if (ret) return -1;

  for (;;) {
    EXT2_MOAN_FAIL (ret, ext2fs_get_next_inode (scan, &i_num, &src_i));

    if (ret) break;

    if (!i_num) break;

    skip = 0;

    switch (i_num) {
    case EXT2_BAD_INO:
    case EXT4_USR_QUOTA_INO:
    case EXT4_GRP_QUOTA_INO:
    case EXT2_BOOT_LOADER_INO:
    case EXT2_UNDEL_DIR_INO:
    case EXT2_RESIZE_INO:
    case EXT2_EXCLUDE_INO:
    case EXT4_REPLICA_INO:
      skip = 1;
    }

    if (i_num == src_fs->super->s_journal_inum) skip = 1;

    if (skip) continue;

    if (clone_inode (src_fs, dst_fs, i_num, &src_i)) {
      fprintf (stderr, "clone_inode(%d) failed\n", (int) i_num);
      break;
    }
  }

  ext2fs_close_inode_scan (scan);
  return 0;
}