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From: net@tub.UUCP
Newsgroups: comp.sources.d
Subject: Re: Unusual behavior in "screen" - (nf)
Message-ID: <49100001@tub.UUCP>
Date: Wed, 26-Aug-87 07:50:00 EDT
Article-I.D.: tub.49100001
Posted: Wed Aug 26 07:50:00 1987
Date-Received: Tue, 1-Sep-87 04:06:02 EDT
References: <1049@bsu-cs.UUCP>
Lines: 19
Nf-ID: #R:bsu-cs:-104900:tub:49100001:000:885
Nf-From: tub!net    Aug 26 12:50:00 1987

> Symptoms:
>      After a user logs out from a new login session that was running under
>      control of "screen", the user's name is still in /etc/utmp and
>      the "who" command will show the user still logged in.

You didn't install "screen" with set-uid and owner root as explained
in the README-file, the Makefile, and the BUGS-section of the manual page.
If "screen" isn't granted write access to /etc/utmp it cannot remove
the utmp-entry inserted by /bin/login.  You can reproduce this ``bug in
screen'' even without the help of "screen": Just run /bin/login on a
random pseudo-tty without the help of friendly set-uid programs like
"rlogind" or "screen" that clean up after you.

--
    Oliver Laumann, Technical University of Berlin, Germany.
    ...!pyramid!tub!net   or   net@TUB.BITNET

"I have yet to see anything posted by Dhesi that was correct."
       --Doug Gwyn