From owner-freebsd-current  Mon Jul  2  1:38:46 2001
Delivered-To: freebsd-current@freebsd.org
Received: from salmon.maths.tcd.ie (salmon.maths.tcd.ie [134.226.81.11])
	by hub.freebsd.org (Postfix) with SMTP id 299C737B401
	for <freebsd-current@FreeBSD.ORG>; Mon,  2 Jul 2001 01:38:44 -0700 (PDT)
	(envelope-from dwmalone@maths.tcd.ie)
Received: from walton.maths.tcd.ie by salmon.maths.tcd.ie with SMTP
          id <aa94505@salmon>; 2 Jul 2001 09:38:43 +0100 (BST)
Date: Mon, 2 Jul 2001 09:38:42 +0100
From: David Malone <dwmalone@maths.tcd.ie>
To: cjclark@alum.mit.edu
Cc: David Hill <djhill@novagate.net>, freebsd-current@FreeBSD.ORG
Subject: Re: syslogd and -a
Message-ID: <20010702093842.A13480@walton.maths.tcd.ie>
References: <20010701234125.7a7d3e3a.djhill@novagate.net> <20010701212044.Q296@blossom.cjclark.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.2.5i
In-Reply-To: <20010701212044.Q296@blossom.cjclark.org>; from cristjc@earthlink.net on Sun, Jul 01, 2001 at 09:20:44PM -0700
Sender: owner-freebsd-current@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-current.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo?subject=subscribe%20freebsd-current>
List-Unsubscribe: <mailto:majordomo?subject=unsubscribe%20freebsd-current>
X-Loop: FreeBSD.ORG

On Sun, Jul 01, 2001 at 09:20:44PM -0700, Crist J. Clark wrote:
> Hmmm... Looks like,
> 
>   # syslogd -a 192.168.1.0/29
> 
> Will work and,
> 
>   # syslogd -a 192.168.1.1/29
> 
> Won't.

That's the standard behaviour of a netmask, isn't it? The usual
way to check if host h is in network/netmask n/m is to check if:

	(h & m == n)

this means that the bits of the network which are not in the mask
must be zero.

	David.

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-current" in the body of the message