enum_net.hpp

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/*

Copyright (c) 2007, Arvid Norberg
All rights reserved.

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modification, are permitted provided that the following conditions
are met:

    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright
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      the documentation and/or other materials provided with the distribution.
    * Neither the name of the author nor the names of its
      contributors may be used to endorse or promote products derived
      from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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*/

#ifndef TORRENT_ENUM_NET_HPP_INCLUDED
#define TORRENT_ENUM_NET_HPP_INCLUDED

#include "libtorrent/socket.hpp"

namespace libtorrent
{

	struct ip_interface
	{
		address interface_address;
		address netmask;
	};

	// returns a list of the configured IP interfaces
	// on the machine
	std::vector<ip_interface> enum_net_interfaces(asio::io_service& ios
		, asio::error_code& ec);

	// returns true if the specified address is on the same
	// local network as the specified interface
	bool in_subnet(address const& addr, ip_interface const& iface);

	// returns true if the specified address is on the same
	// local network as us
	bool in_local_network(asio::io_service& ios, address const& addr, asio::error_code& ec);
	
	address router_for_interface(address const interface, asio::error_code& ec);
}

#endif