60 lines
1.4 KiB
C++
60 lines
1.4 KiB
C++
//
|
|
// blocking_tcp_echo_client.cpp
|
|
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
//
|
|
// Copyright (c) 2003-2019 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 <cstdlib>
|
|
#include <cstring>
|
|
#include <iostream>
|
|
#include <boost/asio.hpp>
|
|
|
|
using boost::asio::ip::tcp;
|
|
|
|
enum { max_length = 1024 };
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
try
|
|
{
|
|
if (argc != 3)
|
|
{
|
|
std::cerr << "Usage: blocking_tcp_echo_client <host> <port>\n";
|
|
return 1;
|
|
}
|
|
|
|
boost::asio::io_context io_context;
|
|
|
|
tcp::resolver resolver(io_context);
|
|
tcp::resolver::results_type endpoints =
|
|
resolver.resolve(tcp::v4(), argv[1], argv[2]);
|
|
|
|
tcp::socket s(io_context);
|
|
boost::asio::connect(s, endpoints);
|
|
|
|
using namespace std; // For strlen.
|
|
std::cout << "Enter message: ";
|
|
char request[max_length];
|
|
std::cin.getline(request, max_length);
|
|
size_t request_length = strlen(request);
|
|
boost::asio::write(s, boost::asio::buffer(request, request_length));
|
|
|
|
char reply[max_length];
|
|
size_t reply_length = boost::asio::read(s,
|
|
boost::asio::buffer(reply, request_length));
|
|
std::cout << "Reply is: ";
|
|
std::cout.write(reply, reply_length);
|
|
std::cout << "\n";
|
|
}
|
|
catch (std::exception& e)
|
|
{
|
|
std::cerr << "Exception: " << e.what() << "\n";
|
|
}
|
|
|
|
return 0;
|
|
}
|