Using fsck_s5 to check indirect blocks

Indirect blocks are owned by an inode. Therefore, inconsistencies in an indirect block directly affect the inode that owns it. Inconsistencies that can be checked are:

• blocks already claimed by another inode

• block numbers outside the range of the filesystem

The consistency checks for direct blocks described in the sections ``Using fsck_s5 to check duplicate blocks'' and ``Using fsck_s5 to check bad block numbers'' are also performed for indirect blocks.