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Date: Tue, 26 Nov 1996 12:35:11 -0800
From: Julian Elischer <julian@whistle.com>
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To: Bill Paul <wpaul@skynet.ctr.columbia.edu>
CC: Terry Lambert <terry@lambert.org>, sprice@hiwaay.net, hackers@FreeBSD.org
Subject: Re: looking for an idea
References: <199611261724.MAA09233@skynet.ctr.columbia.edu>
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Bill Paul wrote:
> 
> 
If YOU ( the server) are root....

make a file owned by them mode 400
require them to open it and send you the file descriptor via AF_UNIX

check it matches..
if it does, then
1/ the are themselves
or
2/ they are root (game over)