/**
 ** \file Ipv4Address.h
 ** \date  2006-09-21
 ** \author grymse@alhem.net
**/
/*
Copyright (C) 2007-2010  Anders Hedstrom

This library is made available under the terms of the GNU GPL, with
the additional exemption that compiling, linking, and/or using OpenSSL
is allowed.

If you would like to use this library in a closed-source application,
a separate license agreement is available. For information about
the closed-source license agreement for the C++ sockets library,
please visit http://www.alhem.net/Sockets/license.html and/or
email license@alhem.net.

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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/
#ifndef _SOCKETS_Ipv4Address_H
#define _SOCKETS_Ipv4Address_H

#include "sockets-config.h"
#include "SocketAddress.h"


#ifdef SOCKETS_NAMESPACE
namespace SOCKETS_NAMESPACE
{
#endif


/* Ipv4 address implementation.
  \ingroup basic */
class Ipv4Address : public SocketAddress
{
public:
  /** Create empty Ipv4 address structure.
    \param port Port number */
  Ipv4Address(port_t port = 0);
  /** Create Ipv4 address structure.
    \param a Socket address in network byte order (as returned by Utility::u2ip)
    \param port Port number in host byte order */
  Ipv4Address(ipaddr_t a,port_t port);
  /** Create Ipv4 address structure.
    \param a Socket address in network byte order
    \param port Port number in host byte order */
  Ipv4Address(struct in_addr& a,port_t port);
  /** Create Ipv4 address structure.
    \param host Hostname to be resolved
    \param port Port number in host byte order */
  Ipv4Address(const std::string& host,port_t port);
  Ipv4Address(struct sockaddr_in&);
  ~Ipv4Address();

  // SocketAddress implementation

  operator struct sockaddr *();
  operator socklen_t();
  bool operator==(SocketAddress&);

  void SetPort(port_t port);
  port_t GetPort();

  void SetAddress(struct sockaddr *sa);
  int GetFamily();

  bool IsValid();
  std::auto_ptr<SocketAddress> GetCopy();

  /** Convert address struct to text. */
  std::string Convert(bool include_port = false);
  std::string Reverse();

  /** Resolve hostname. */
  static  bool Resolve(const std::string& hostname,struct in_addr& a);
  /** Reverse resolve (IP to hostname). */
  static  bool Reverse(struct in_addr& a,std::string& name);
  /** Convert address struct to text. */
  static  std::string Convert(struct in_addr& a);

private:
  Ipv4Address(const Ipv4Address& ) {} // copy constructor
  Ipv4Address& operator=(const Ipv4Address& ) {
    return *this;  // assignment operator
  }
  struct sockaddr_in m_addr;
  bool m_valid;
};




#ifdef SOCKETS_NAMESPACE
} // namespace SOCKETS_NAMESPACE {
#endif
#endif // _SOCKETS_Ipv4Address_H

