// [License]
// The Ariba-Underlay Copyright
//
// Copyright (c) 2008-2009, Institute of Telematics, Universität Karlsruhe (TH)
//
// Institute of Telematics
// Universität Karlsruhe (TH)
// Zirkel 2, 76128 Karlsruhe
// Germany
//
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// modification, are permitted provided that the following conditions are
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//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
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// [License]

#include "AddressInformation.h"

namespace ariba {
namespace communication {

AddressInformation::AddressInformation(){
}

AddressInformation::~AddressInformation(){
}

AddressList AddressInformation::getAddresses(const NetworkInterface& interface){

	AddressList retlist;

	//
	// gather transport addresses
	//

	struct ifaddrs* ifap;
	getifaddrs( &ifap );

	for( struct ifaddrs* p = ifap; p != NULL; p=p->ifa_next ){
		if( interface.name.compare(string(p->ifa_name)) != 0 ) continue;

		// TODO: currently only handle IPv4
		struct sockaddr* addr = p->ifa_addr;
		if( addr->sa_family != AF_INET ) continue;

		const struct sockaddr_in& ipv4 = (const struct sockaddr_in&)*addr;
		boost::asio::ip::address_v4::bytes_type bytes;
		for( int i=0; i<4; i++ )
			bytes[i] = (ipv4.sin_addr.s_addr >> (24-i*8)) & 0xff;

		boost::asio::ip::address boost_addr = boost::asio::ip::address_v4( bytes );
		retlist.push_back( IPv4Locator::fromString(boost_addr.to_string()) );
	}

	freeifaddrs( ifap );

	//
	// TODO: gather further addresses like MAC etc.
	//

	return retlist;
}

}} // namespace ariba, communication