/*

 * This file is part of PowerDNS or dnsdist.

 * Copyright -- PowerDNS.COM B.V. and its contributors

 *

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

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

 * published by the Free Software Foundation.

 *

 * In addition, for the avoidance of any doubt, permission is granted to

 * link this program with OpenSSL and to (re)distribute the binaries

 * produced as the result of such linking.

 *

 * 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.

 */

#pragma once

#include "iputils.hh"

class EDNSSubnetOpts

{

public:

  void setSource(const Netmask& netmask)

  {

    source = netmask;

  }

  [[nodiscard]] const Netmask& getSource() const

  {

    return source;

  }

  [[nodiscard]] uint8_t getFamily() const

  {

    return source.getNetwork().sin4.sin_family;

  }

  [[nodiscard]] uint8_t getSourcePrefixLength() const

  {

    return source.getBits();

  }

  void setScopePrefixLength(uint8_t scope)

  {

    scopeBits = scope;

  }

  [[nodiscard]] uint8_t getScopePrefixLength() const

  {

    return scopeBits;

  }

  [[nodiscard]] Netmask getScope() const

  {

    return {source.getNetwork(), scopeBits};

  }

  [[nodiscard]] std::string makeOptString() const;

  static bool getFromString(const std::string& options, EDNSSubnetOpts* eso);

  static bool getFromString(const char* options, unsigned int len, EDNSSubnetOpts* eso);

private:

  Netmask source;

  uint8_t scopeBits{};

};