showfhd - showfh daemon run on the NFS servers
showfhd is the daemon which runs on the NFS servers and answers showfh
requests. It provides the full path name for the given file handle.
If it cannot find the file for the corresponding inode number, it
returns an error message.
/etc/mtab table of mounted file systems
10 May 1988 SHOWFHD(8C)