Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!lll-winken!csd4.milw.wisc.edu!marque!lakesys!tom
From: tom@lakesys.UUCP (Tom Baas)
Newsgroups: comp.unix.wizards
Subject: Re: Priorty messages in Unix
Message-ID: <538@lakesys.UUCP>
Date: 14 Apr 89 02:01:39 GMT
References: <1857@wpi.wpi.edu>
Reply-To: tom@lakesys.UUCP (Tom Baas)
Organization: Lake Systems - Milwaukee, Wisconsin
Lines: 18

>Does anyone know if there is a way to tell 4.xBSD Unix to let certain
>priorty messages through? And how to encode the messages as being priorty.

>Perhaps even better, is there a way to allow only mesages from certain
>users to come through? The binary choice offered by mesg y/n just does
>not cut it.

>Walden Leverich

On AT&T UNIX, you can allow group write permissions to the /dev/tty.
I assume that this also holds for BSD Unix(correct me if I'm wrong.)

What you do is to set the group write permission of the tty involved to that
group of users that you want to be allowed to send it messages.

Tom Baas

{uwcsd1,umargue}!lakesys!tom  or {uwcsd1,umarque}!lakesys!tbaas!tom