/*

* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#include <sys/types.h>

#include <sys/socket.h>

#include <sys/sockio.h>

#include <stdapis/net/if.h>

#include <stdlib.h>

#include <string.h>

#include <errno.h>

#include <unistd.h>

/*

 *    If the specified interface name does not exist, the return value is

 *    0, and errno is set to ENXIO.  If there was a system error (such as

 *    running out of memory), the return value is 0 and errno is set to the

 *    proper value (e.g., ENOMEM).

 */

EXPORT_C unsigned int if_nametoindex(const char *ifname)

	{

	struct if_nameindex *ifi = NULL;

	struct if_nameindex *ifa;

	unsigned int ni;

	ifi = if_nameindex();

	if (ifi == NULL)

		{

		errno = ENXIO;

		return 0;

		}

	ni = 0;

	for (ifa = ifi; ifa->if_index != 0; ifa++ )

		{

		if ( strcmp(ifa->if_name, ifname ) == 0)

			{

			ni = ifa->if_index;

			break;

			}

		}

	if_freenameindex(ifi);

	if (!ni)

		{

		errno = ENXIO;

		}

	return(ni);

	}