Path: utzoo!attcan!uunet!husc6!mailrus!cwjcc!hal!nic.MR.NET!shamash!halcdc!randy
From: randy@halcdc.UUCP (randy orrison)
Newsgroups: comp.unix.wizards
Subject: home directory to user mapping
Message-ID: <113@halcdc.UUCP>
Date: 14 Nov 88 20:26:50 GMT
Reply-To: randy@halcdc.UUCP (randy orrison)
Organization: Control Data in the Hills of Arden, Minnesota
Lines: 15

Is there an easy way to reverse the user to home directory mapping of
/etc/passwd?  That is, given an absolute pathname, tell me whose home
directory it's in?  In a simple, pre-nfs and symbolic links,
filesystem, this isn't too bad, but in the worst case it can get
complicated.  e.g.
	my home directory is /u/randy
	/u/randy -> /n/halcdc/usr1/randy
	/n/halcdc is an nfs mount of halcdc:/usr1/randy
I want a function that (run on halcdc) given '/usr/randy/junk/file'
will tell me that it's in randy's home directory.

Any ideas on how to do this?

	Thanks in advance!
		-randy