barrier/src/lib/net/NetworkAddress.h

/*
 * synergy -- mouse and keyboard sharing utility
 * Copyright (C) 2012 Synergy Si Ltd.
 * Copyright (C) 2002 Chris Schoeneman
 * 
 * This package is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * found in the file COPYING that should have accompanied this file.
 * 
 * This package 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, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include "base/String.h"
#include "base/EventTypes.h"
#include "arch/IArchNetwork.h"

//! Network address type
/*!
This class represents a network address.
*/
class NetworkAddress {
public:
	/*!
	Constructs the invalid address
	*/
	NetworkAddress();

	/*!
	Construct the wildcard address with the given port.  \c port must
	not be zero.
	*/
	NetworkAddress(int port);

	/*!
	Construct the network address for the given \c hostname and \c port.
	If \c hostname can be parsed as a numerical address then that's how
	it's used, otherwise it's used as a host name.  If \c hostname ends
	in ":[0-9]+" then that suffix is extracted and used as the port,
	overridding the port parameter.  The resulting port must be a valid
	port number (zero is not a valid port number) otherwise \c XSocketAddress
	is thrown with an error of \c XSocketAddress::kBadPort.  The hostname
	is not resolved by the c'tor;  use \c resolve to do that.
	*/
	NetworkAddress(const String& hostname, int port);

	NetworkAddress(const NetworkAddress&);

	~NetworkAddress();

	NetworkAddress&	operator=(const NetworkAddress&);

	//! @name manipulators
	//@{

	//! Resolve address
	/*!
	Resolves the hostname to an address.  This can be done any number of
	times and is done automatically by the c'tor taking a hostname.
	Throws XSocketAddress if resolution is unsuccessful, after which
	\c isValid returns false until the next call to this method.
	*/
	void				resolve();

	//@}
	//! @name accessors
	//@{

	//! Check address equality
	/*!
	Returns true if this address is equal to \p address.
	*/
	bool				operator==(const NetworkAddress& address) const;

	//! Check address inequality
	/*!
	Returns true if this address is not equal to \p address.
	*/
	bool				operator!=(const NetworkAddress& address) const;

	//! Check address validity
	/*!
	Returns true if this is not the invalid address.
	*/
	bool				isValid() const;

	//! Get address
	/*!
	Returns the address in the platform's native network address
	structure.
	*/
	const ArchNetAddress&	getAddress() const;

	//! Get port
	/*!
	Returns the port passed to the c'tor as a suffix to the hostname,
	if that existed, otherwise as passed directly to the c'tor.
	*/
	int					getPort() const;

	//! Get hostname
	/*!
	Returns the hostname passed to the c'tor sans any port suffix.
	*/
	String				getHostname() const;

	//@}

private:
	void				checkPort();

private:
	ArchNetAddress		m_address;
	String				m_hostname;
	int					m_port;
};