/*
 * IPAddress.cpp
 *
 * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

#include "IPAddress.h"

#include <cstdlib>

namespace Mad {
namespace Net {

IPAddress::IPAddress(uint16_t port0) : addr(INADDR_ANY), port(port0) {
  sa.sin_family = AF_INET;
  sa.sin_port = htons(port);
  sa.sin_addr.s_addr = INADDR_ANY;
}

IPAddress::IPAddress(uint32_t address, uint16_t port0) : addr(address), port(port0) {
  sa.sin_family = AF_INET;
  sa.sin_port = htons(port);
  sa.sin_addr.s_addr = htonl(addr);
}

IPAddress::IPAddress(const std::string &address) throw(Exception) {
  std::string ip;
  size_t pos = address.find_first_of(':');

  if(pos == std::string::npos) {
    ip = address;
    // TODO Default port
    port = 6666;
  }
  else {
    ip = address.substr(0, pos);

    char *endptr;
    port = std::strtol(address.substr(pos+1).c_str(), &endptr, 10);
    if(*endptr != 0 || port == 0)
      throw Exception(Exception::INVALID_ADDRESS);
  }

  sa.sin_family = AF_INET;
  sa.sin_port = htons(port);

  if(ip == "*")
    sa.sin_addr.s_addr = INADDR_ANY;
  else if(!inet_pton(AF_INET, ip.c_str(), &sa.sin_addr))
    throw Exception(Exception::INVALID_ADDRESS);

  addr = ntohl(sa.sin_addr.s_addr);
}

IPAddress::IPAddress(const std::string &address, uint16_t port0) throw(Exception) : port(port0) {
  sa.sin_family = AF_INET;
  sa.sin_port = htons(port);

  if(!inet_pton(AF_INET, address.c_str(), &sa.sin_addr))
    throw Exception(Exception::INVALID_ADDRESS);

  addr = ntohl(sa.sin_addr.s_addr);
}

IPAddress::IPAddress(const struct sockaddr_in &address) : sa(address) {
  port = ntohs(sa.sin_port);
  addr = ntohl(sa.sin_addr.s_addr);
}

std::string IPAddress::getAddressString() const {
  char buf[INET_ADDRSTRLEN];
  uint32_t address = htonl(addr);

  inet_ntop(AF_INET, &address, buf, sizeof(buf));
  return std::string(buf);
}

}
}