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Date: Mon, 23 Jul 2007 10:46:50 +0200
From: Jacques Fourie <jf@trispen.com>
To: Garrett Cooper <youshi10@u.washington.edu>
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Cc: freebsd-hackers@freebsd.org
Subject: Re: How do I daemonize a process?
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On Mon, Jul 23, 2007 at 01:41:00AM -0700, Garrett Cooper wrote:
> Garrett Cooper wrote:
> >   As the subject suggests I'm trying to determine how I can daemonize 
> >a C process, outside of using the rc infrastructure, so that it won't 
> >exit when the TTY exists. Does anyone know any quick references or 
> >examples?
> >Thanks,
> >-Garrett
> 
> s/C process/C application process/
> s/exists/exits/
> s/any quick/of any quick/
> 
>    Tonight's not my night for communicating I suppose :(..
> -Garrett
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If you can modify the source, have a look at the daemon() function : 
man 3 daemon

jacques