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Path: utzoo!linus!philabs!ttidca!davidt
From: davidt@ttidca.UUCP (David Terlinden)
Newsgroups: net.lang.c
Subject: Re: Redirect output file descriptor 3 (not just 1 and 2)
Message-ID: <170@ttidca.UUCP>
Date: Wed, 21-Nov-84 09:38:32 EST
Article-I.D.: ttidca.170
Posted: Wed Nov 21 09:38:32 1984
Date-Received: Thu, 22-Nov-84 07:20:33 EST
References: <569@afinitc.UUCP>
Organization: TTI, Santa Monica, CA.
Lines: 3

Use Bourne shell, not C shell.  Just something like
prog 3>/dev/tty to shell and write(3, "hello!!!", 8); in C program
works fine.