//
// client.cpp
// ~~~~~~~~~~
//
// Copyright (c) 2003-2007 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//

#include <iostream>
#include <boost/array.hpp>
#include <boost/asio.hpp>

using boost::asio::ip::tcp;

int main(int argc, char* argv[])
{
  try
    {
        if (argc != 2)
            {
                  std::cerr << "Usage: client <host>" << std::endl;
                        return 1;
                            }
                            
                                boost::asio::io_service io_service;
                                
                                    tcp::resolver resolver(io_service);
                                        tcp::resolver::query query(argv[1], "daytime");
                                            tcp::resolver::iterator endpoint_iterator = resolver.resolve(query);
                                                tcp::resolver::iterator end;
                                                
                                                    tcp::socket socket(io_service);
                                                        boost::system::error_code error = boost::asio::error::host_not_found;
                                                            while (error && endpoint_iterator != end)
                                                                {
                                                                      socket.close();
                                                                            socket.connect(*endpoint_iterator++, error);
                                                                                }
                                                                                    if (error)
                                                                                          throw boost::system::system_error(error);
                                                                                          
                                                                                              for (;;)
                                                                                                  {
                                                                                                        boost::array<char, 128> buf;
                                                                                                              boost::system::error_code error;
                                                                                                              
                                                                                                                    size_t len = socket.read_some(boost::asio::buffer(buf), error);
                                                                                                                    
                                                                                                                          if (error == boost::asio::error::eof)
                                                                                                                                  break; // Connection closed cleanly by peer.
                                                                                                                                        else if (error)
                                                                                                                                                throw boost::system::system_error(error); // Some other error.
                                                                                                                                                
                                                                                                                                                      std::cout.write(buf.data(), len);
                                                                                                                                                          }
                                                                                                                                                            }
                                                                                                                                                              catch (std::exception& e)
                                                                                                                                                                {
                                                                                                                                                                    std::cerr << e.what() << std::endl;
                                                                                                                                                                      }
                                                                                                                                                                      
                                                                                                                                                                        return 0;
                                                                                                                                                                        }