/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "mt.h"
#include "rpc_mt.h"
#include <stdio.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <unistd.h>
#include <net/if.h>
#include <sys/sockio.h>
/*
* Determine if we have a configured interface for the specified address
* family.
*/
int
__can_use_af(sa_family_t af)
{
struct lifnum lifn;
int fd;
if ((fd = open("/dev/udp", O_RDONLY)) < 0)
return (0);
lifn.lifn_family = af;
/* XXX Remove this after fixing 6204567 */
/* CONSTCOND */
lifn.lifn_flags = IFF_UP & !(IFF_NOXMIT | IFF_DEPRECATED);
if (ioctl(fd, SIOCGLIFNUM, &lifn, sizeof (lifn)) < 0)
lifn.lifn_count = 0;
(void) close(fd);
return (lifn.lifn_count);
}