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From: gwyn@brl-smoke.ARPA (Doug Gwyn )
Newsgroups: comp.lang.c,comp.unix.questions
Subject: Re: Keyboard Input (Revised Question) ...
Message-ID: <6184@brl-smoke.ARPA>
Date: Tue, 28-Jul-87 12:30:39 EDT
Article-I.D.: brl-smok.6184
Posted: Tue Jul 28 12:30:39 1987
Date-Received: Thu, 30-Jul-87 00:47:10 EDT
References: <1043@bucsb.bu.edu.UUCP> <196@chemabs.UUCP>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) )
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 7
Keywords: Keyboard
Xref: mnetor comp.lang.c:3338 comp.unix.questions:3383

In article <196@chemabs.UUCP> rsh27@UNIX14.UUCP (PUT YOUR NAME HERE) writes:
>(By the way on our Ultrix 1.2 system, in System V emulation mode, a program 
>that uses O_NODELAY mode on the keyboard will cause a user to be logged off 
>when it terminates.)

That's inherent in O_NDELAY.  If you don't reset it, when the shell tries
to read from the terminal it gets back what it interprets as EOF and exits.