how to get directory name by inode value in c?

Question

i am tring to add a new feature to bash and the job need a func to get the directory name from the given inode value so how to got this work? i mean if there\'s some builtin fu

Answer 1

List the directory and get the inode of .. then list that and find the name of the file there that has the inode you are looking for.

Answer 2

This is impossible without searching through the filesystem for a dir that contains a file with the given inode. Filenames are named references to inodes with no backlinks.