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From: trw@aplcen.apl.jhu.edu (Weil timothy)
Newsgroups: comp.unix.questions
Subject: Directory traversal (crossin mount points)
Summary: How to span Filesystems (Mount points) for Dir Traversal
Keywords: Directory Traversals, Mount points
Message-ID: <5854@aplcen.apl.jhu.edu>
Date: 30 Jun 90 14:25:43 GMT
Distribution: comp.unix.questions
Organization: Johns Hopkins University, Laurel, MD
Lines: 17

I'm writing a simple program to emulate the 'pwd' command
that traverses from the current directory to the ROOT_INODE
via a simple statement like - 
 
      while (this_dir_inode != ROOT_INO)
          chdir ..
          match this_dir_inode in parent_directory
          ....
      et cetra
 
Question: - since there are repitions of ROOT_INODE (#2)
across file system mount points, how can I distinguish the
ROOT_INODE for '/'   from '/usr'   or '/usr/users' ?
 
Hope this isn't too confusing.