From owner-svn-src-stable@FreeBSD.ORG  Mon Dec  7 07:41:30 2009
Return-Path: <owner-svn-src-stable@FreeBSD.ORG>
Delivered-To: svn-src-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 364F5106566B;
	Mon,  7 Dec 2009 07:41:30 +0000 (UTC) (envelope-from hrs@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
	by mx1.freebsd.org (Postfix) with ESMTP id 24AF28FC08;
	Mon,  7 Dec 2009 07:41:30 +0000 (UTC)
Received: from svn.freebsd.org (localhost [127.0.0.1])
	by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id nB77fU1S045411;
	Mon, 7 Dec 2009 07:41:30 GMT (envelope-from hrs@svn.freebsd.org)
Received: (from hrs@localhost)
	by svn.freebsd.org (8.14.3/8.14.3/Submit) id nB77fUOh045409;
	Mon, 7 Dec 2009 07:41:30 GMT (envelope-from hrs@svn.freebsd.org)
Message-Id: <200912070741.nB77fUOh045409@svn.freebsd.org>
From: Hiroki Sato <hrs@FreeBSD.org>
Date: Mon, 7 Dec 2009 07:41:30 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
	svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org
X-SVN-Group: stable-8
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: 
Subject: svn commit: r200209 - stable/8/etc
X-BeenThere: svn-src-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: SVN commit messages for all the -stable branches of the src tree
	<svn-src-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-stable>, 
	<mailto:svn-src-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-stable>
List-Post: <mailto:svn-src-stable@freebsd.org>
List-Help: <mailto:svn-src-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-stable>,
	<mailto:svn-src-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 07 Dec 2009 07:41:30 -0000

Author: hrs
Date: Mon Dec  7 07:41:29 2009
New Revision: 200209
URL: http://svn.freebsd.org/changeset/base/200209

Log:
  MFC:
  
  r197139
  - Add afexists() to check if the specified address family exists
    on the system or not.
  
  r197697
  - Add AF_IPX and AF_NATM to afexists().

Modified:
  stable/8/etc/network.subr
Directory Properties:
  stable/8/etc/   (props changed)

Modified: stable/8/etc/network.subr
==============================================================================
--- stable/8/etc/network.subr	Mon Dec  7 07:33:51 2009	(r200208)
+++ stable/8/etc/network.subr	Mon Dec  7 07:41:29 2009	(r200209)
@@ -276,6 +276,37 @@ wpaif()
 	return 1
 }
 
+# afexists af
+#	Returns 0 if the address family is enabled in the kernel
+#	1 otherwise.
+afexists()
+{
+	local _af
+	_af=$1
+
+	case ${_af} in
+	inet)
+		${SYSCTL_N} net.inet > /dev/null 2>&1
+		;;
+	inet6)
+		${SYSCTL_N} net.inet6 > /dev/null 2>&1
+		;;
+	ipx)
+		${SYSCTL_N} net.ipx > /dev/null 2>&1
+		;;
+	atm)
+		if [ -x /sbin/atmconfig ]; then
+			/sbin/atmconfig diag list > /dev/null 2>&1
+		else
+			return 1
+		fi
+		;;
+	*)
+		err 1 "afexists(): Unsupported address family: $_af"
+		;;
+	esac
+}
+
 # ipv6if if
 #	Returns 0 if the interface should be configured for IPv6 and
 #	1 otherwise.