Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!elroy.jpl.nasa.gov!jpl-devvax!lwall
From: lwall@jpl-devvax.JPL.NASA.GOV (Larry Wall)
Newsgroups: comp.unix.wizards
Subject: Re: Authenticating Unix Domain sockets.
Message-ID: <11225@jpl-devvax.JPL.NASA.GOV>
Date: 29 Jan 91 23:11:50 GMT
References: <1991Jan29.063539.2169@objy.com>
Reply-To: lwall@jpl-devvax.JPL.NASA.GOV (Larry Wall)
Organization: Jet Propulsion Laboratory, Pasadena, CA
Lines: 13

In article <1991Jan29.063539.2169@objy.com> peter@objy.com writes:
: What I would like is a guaranteed way of finding out the uid of a process
: that just connected to me using local (same machine) IPC.

What do you mean by "the" uid?  Given that the other end of a socket may
be open multiple times by multiple processes, there's no guarantee of
uniqueness.

To answer your question, apart from using a secure protocol or grodying
about in the kernel like fuser or ofiles, there isn't a way.

Larry Wall
lwall@jpl-devvax.jpl.nasa.gov