/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */

/*

 * Copyright (c) 2005 INRIA

 * All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation;

 *

 * 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

 *

 * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>

 */

#ifndef IPV4_ADDRESS_H

#define IPV4_ADDRESS_H

#include <stdint.h>

#include <ostream>

namespace ns3 {

/* Ipv4 addresses are stored in host order in

 * this class.

 */

class Ipv4Address {

public:

  Ipv4Address ();

  /* input address is in host order. */

  Ipv4Address (uint32_t address);

  /* input address is in format:

   * hhh.xxx.xxx.lll

   * where h is the high byte and l the

   * low byte

   */

  Ipv4Address (char const *address);

  bool IsEqual (Ipv4Address other) const;

  /* Using this method is frowned upon.

   * Please, do _not_ use this method.

   * It is there only for chunk-ipv4.

   */

  uint32_t GetHostOrder (void) const;

  void SetHostOrder (uint32_t ip);

  void Serialize (uint8_t buf[4]) const;

  void Print (std::ostream *os) const;

  bool IsBroadcast (void);

  bool IsMulticast (void);

  static Ipv4Address GetZero (void);

  static Ipv4Address GetAny (void);

  static Ipv4Address GetBroadcast (void);

  static Ipv4Address GetLoopback (void);

private:

  uint32_t m_address;

};

class Ipv4Mask {

public:

  Ipv4Mask ();

  Ipv4Mask (uint32_t mask);

  Ipv4Mask (char const *mask);

  bool IsMatch (Ipv4Address a, Ipv4Address b) const;

  bool IsEqual (Ipv4Mask other) const;

  /* Using this method is frowned upon.

   * Please, do _not_ use this method.

   */

  uint32_t GetHostOrder (void) const;

  void SetHostOrder (uint32_t value);

  void Print (std::ostream *os) const;

  static Ipv4Mask GetLoopback (void);

  static Ipv4Mask GetZero (void);

private:

  uint32_t m_mask;

};

std::ostream& operator<< (std::ostream& os, Ipv4Address const& address);

std::ostream& operator<< (std::ostream& os, Ipv4Mask const& mask);

bool operator == (Ipv4Address const &a, Ipv4Address const &b);

bool operator != (Ipv4Address const &a, Ipv4Address const &b);

class Ipv4AddressHash : public std::unary_function<Ipv4Address, size_t> {

public:

  size_t operator()(Ipv4Address const &x) const;

};

bool operator != (Ipv4Address const &a, Ipv4Address const &b);

}; // namespace ns3

#endif /* IPV4_ADDRESS_H */