// [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
// met:
//
// 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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//
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ARIBA PROJECT OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// [License]

#include "IPv4NetworkProtocol.h"

namespace ariba {
namespace communication {

IPv4NetworkProtocol::IPv4NetworkProtocol(){
}

IPv4NetworkProtocol::~IPv4NetworkProtocol(){
}

const NetworkProtocol::NetworkLocatorSet IPv4NetworkProtocol::getAddresses() const{

	NetworkProtocol::NetworkLocatorSet interfaces;

	struct ifaddrs* ifaceBuffer = NULL;
	struct ifaddrs* tmpAddr     = NULL;
	void*           tmpAddrPtr  = NULL;
	char            straddr     [INET_ADDRSTRLEN];

	int ret = getifaddrs( &ifaceBuffer );
	if( ret != 0 ) return interfaces;

	for( struct ifaddrs* i=ifaceBuffer; i != NULL; i=i->ifa_next ){

		// ignore devices that are disabled or have no ip
		if(i == NULL || i->ifa_addr == NULL) continue;

		// only look at IPv4, not IPv6 addresses
		if(i->ifa_addr->sa_family != AF_INET) continue;

		tmpAddrPtr= &((struct sockaddr_in*)i->ifa_addr)->sin_addr;
		inet_ntop( i->ifa_addr->sa_family, tmpAddrPtr, straddr, sizeof(straddr) );

		IPv4Locator* iplocator = new IPv4Locator(IPv4Locator::fromString(straddr));
		interfaces.push_back( iplocator );
	}

	return interfaces;
}

}} // namespace ariba, communication