help in finding which machine a file is actually stored on

[John Sun]

I need help some help in determining the actual machine a file is stored
on.  What I am looking for is a routine that given an absolute file name
returns the machine it is stored on in a NFS environment.  Is there a
"system" call that does this?  If not, any pointers in helping me write
such a routine would be appreciated.  Thanks!

                                        John Sun
                                        sunj at dopey.cs.unc.edu