Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site sdccsu3.UUCP Path: utzoo!linus!decvax!ittvax!dcdwest!sdcsvax!sdccsu3!muller From: muller@sdccsu3.UUCP Newsgroups: net.unix Subject: Re: Why 4BSD 'stty' uses stdout instead of stdin Message-ID: <2190@sdccsu3.UUCP> Date: Sun, 19-Aug-84 01:21:44 EDT Article-I.D.: sdccsu3.2190 Posted: Sun Aug 19 01:21:44 1984 Date-Received: Tue, 21-Aug-84 04:27:37 EDT References: <12450@sri-arpa.UUCP> Organization: U.C. San Diego, Computer Center Lines: 7 If you have any kind of security requirements for protecting users from each other and you are running 4.2, you *must* prevent general user programs from being able to perform an open on another users tty. There are a lot of real nasty things that can be done once you have that open file descriptor. Keith Muller UCSD Computer Center