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From: jsdy@hadron.UUCP (Joseph S. D. Yao)
Newsgroups: net.unix-wizards
Subject: Re: Conventional daemons
Message-ID: <328@hadron.UUCP>
Date: Sat, 22-Mar-86 12:15:52 EST
Article-I.D.: hadron.328
Posted: Sat Mar 22 12:15:52 1986
Date-Received: Tue, 25-Mar-86 03:25:27 EST
References: <261@bu-cs.UUCP>
Reply-To: jsdy@hadron.UUCP (Joseph S. D. Yao)
Organization: Hadron, Inc., Fairfax, VA
Lines: 19
Summary: Yes, change "/" to "/dev/null".

In article <261@bu-cs.UUCP> ccc@bu-cs.UUCP (Cameron Carson) writes:
>	int s;
>	for (s = 0; s < SOME_NUM; s++)
>		(void) close(s);
>	(void) open("/",0);
>	(void) dup2(0,1);
>	(void) dup2(0,2);
>My question is: why open "/" ?  Why not open something a little
>less vital like, say, /dev/null?

For what it's worth, this is exactly what I have done for every
daemon I have had to write or fix.  However, "if it ain't broke,
don't fix it."  Oh, I do freopen stdout as /dev/console, often.

I hope you meant "/dev/tty" instead of "dev/tty" later on.  Also,
a setpgrp() is usually part of this disassociation process.
-- 

	Joe Yao		hadron!jsdy@seismo.{CSS.GOV,ARPA,UUCP}