/***************************************************************************
 *   Copyright (C) 2005 by Joris Guisson                                   *
 *   joris.guisson@gmail.com                                               *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
 ***************************************************************************/
#ifndef NETADDRESS_H
#define NETADDRESS_H

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <QHostAddress>
#include <util/constants.h>
#include <ktorrent_export.h>


namespace net
{
	using bt::Uint32;
	using bt::Uint16;

	/**
	 * @author Joris Guisson <joris.guisson@gmail.com>
	 * 
	 * Network address, contains an IP address and a port number. 
	 * This supports both IPv4 and IPv6 addresses.
	*/
	class KTORRENT_EXPORT Address : public QHostAddress
	{
	public:
		Address();
		Address(quint32 ip4Addr, Uint16 port);
		Address(quint8* ip6Addr, Uint16 port);
		Address(const Q_IPV6ADDR & ip6Addr, Uint16 port);
		Address(const struct sockaddr_storage* ss);
		Address(const QString & host, Uint16 port);
		Address(const QHostAddress & addr, Uint16 port);
		Address(const Address & addr);
		virtual ~Address();

		/// Get the port number
		Uint16 port() const {return port_number;}
		
		/// Set the port number
		void setPort(Uint16 p) {port_number = p;}
		
		/// Convert to a struct sockaddr_storage
		void toSocketAddress(struct sockaddr_storage* ss, int & length) const;
		
		/// Return the IP protocol version (4 or 6)
		int ipVersion() const {return protocol() == QAbstractSocket::IPv4Protocol ? 4 : 6;}
		
		/// Equality operator
		bool operator == (const net::Address & other) const;
		
		/// Less then operator for putting net::Address in a map
		bool operator < (const net::Address & other) const;
		
		/// Assignment operator
		Address & operator = (const net::Address & other);
		
		/// Assignment operator
		Address & operator = (const struct sockaddr_storage & ss);

		/// Is this a IPv4 mapped address into the IPv6 address space
		bool isIPv4Mapped() const;
		
		/// Convert an IPv4 mapped IPv6 address to an IPv4 address
		Address convertIPv4Mapped() const;
		
	private:
		Uint16 port_number;
	};

}

#endif
