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From: barmar@mit-eddie.UUCP (Barry Margolin)
Newsgroups: net.bugs,net.bugs.4bsd,net.unix
Subject: Re: stty bug + effects
Message-ID: <2624@mit-eddie.UUCP>
Date: Tue, 28-Aug-84 23:09:28 EDT
Article-I.D.: mit-eddi.2624
Posted: Tue Aug 28 23:09:28 1984
Date-Received: Thu, 30-Aug-84 00:33:32 EDT
References: <631@bnl.UUCP> <190@wjvax.UUCP>
Reply-To: barmar@mit-eddie.UUCP (Barry Margolin)
Organization: MIT, Cambridge, MA
Lines: 11


There are a number of ways to allow users to send messages to each other
WITHOUT requiring that everyone have write access to /dev/tty*.  One
that comes to my mind is to make write(1) and friends be setgid to
"write" and "chgrp write /dev/tty*".  This also permits us to prevent
the security hole that "write" currently provides with programmable
terminals, since write(1) could be taught to censor escape sequences.
-- 
    Barry Margolin
    ARPA: barmar@MIT-Multics
    UUCP: ..!genrad!mit-eddie!barmar