/*

* 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:  

* System Includes

*

*/

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <assert.h>

#include <ctype.h>

#include <errno.h>

#ifdef WIN32

#include <winsock2.h>

#else

#include <sys/types.h>

#include <sys/socket.h>

#include <netinet/in.h>

#include <netdb.h>

#endif

/*******************************************************************************

 *

 * Local Includes

 *

 ******************************************************************************/

#include "socket_helper.h"

/*******************************************************************************

 *

 * Definition

 *

 ******************************************************************************/

/*******************************************************************************

 *

 * Implementation

 *

 ******************************************************************************/

struct sockaddr_in getsockaddr( const char* ip, const char* port)

{	

	int isip;

	struct sockaddr_in sockaddr;

	int b1, b2, b3, b4;

	unsigned long addr = 0;

	// set the basics

	sockaddr.sin_family = AF_INET;		

	sockaddr.sin_port = htons(atoi(port));

	// if IP is NULL then set to INADDR_ANY otherwise work it out

	if( ip == NULL ) {

#ifdef WIN32

		sockaddr.sin_addr.S_un.S_addr = INADDR_ANY;

#else

		sockaddr.sin_addr.s_addr = INADDR_ANY;

#endif

		return sockaddr;

	} 

	// otherwise we see if this is an IP address

	isip = is_ip_address( ip );

	if( isip ) {

		sscanf( ip, "%d.%d.%d.%d", &b1, &b2, &b3,&b4 );

		addr = ((b1<<24)&0xFF000000);

		addr |= ((b2<<16)&0x00FF0000);

		addr |= ((b3<<8)&0x0000FF00);

		addr |= ((b4)&0x000000FF);

#ifdef WIN32

		sockaddr.sin_addr.S_un.S_addr = htonl(addr);

#else

		sockaddr.sin_addr.s_addr = htonl(addr);

#endif

	} else {

		struct hostent *hp = gethostbyname(ip);

		memcpy(&sockaddr.sin_addr,hp->h_addr,hp->h_length); 	

	}

	return sockaddr;

}

int is_ip_address( const char* aAddr )

{

  int i;

  int dot_count = 0;

  // Our method for checking whether this is an IP address is to check that

  // we have digits and points (3 to be precise).

  for( i = 0; aAddr[i] != 0; i++ ) {

    if( (aAddr[i] != '.') && (isdigit(aAddr[i]) == 0) ) {

      return 0;

    }

    if( aAddr[i] == '.' ) {

      dot_count++;

      if( dot_count > 3 ) {

	return 0;

      }

    }

  }

  return 1;

}

/*******************************************************************************

 *

 * GetSocketError - gets the last socket error - for xdev

 *

 ******************************************************************************/

int GetSocketError()

{

#ifdef WIN32

	return WSAGetLastError();

#else

	return errno;

#endif

}