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From: ron@BRL-TGR.ARPA
Newsgroups: net.unix
Subject: Re:  Why 4BSD 'stty' uses stdout instead of stdin
Message-ID: <12701@sri-arpa.UUCP>
Date: Wed, 22-Aug-84 11:42:43 EDT
Article-I.D.: sri-arpa.12701
Posted: Wed Aug 22 11:42:43 1984
Date-Received: Sat, 25-Aug-84 03:36:46 EDT
Lines: 8

From:      Ron Natalie <ron@BRL-TGR.ARPA>

If you make ioctl require owner, then any setuid programs that you run
will no longer be able to do ioctls.  If you do the GET from fd0 and
the SET to fd1, you'll really piss off the guy on tty1 because you will
set his terminal with the modes from your terminal plus cbreak.

-Ron