2 // blocking_tcp_echo_client.cpp
3 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5 // Copyright (c) 2003-2017 Christopher M. Kohlhoff (chris at kohlhoff dot com)
7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
14 #include <boost/asio.hpp>
16 using boost::asio::ip::tcp;
18 enum { max_length = 1024 };
20 int main(int argc, char* argv[])
26 std::cerr << "Usage: blocking_tcp_echo_client <host> <port>\n";
30 boost::asio::io_service io_service;
32 tcp::socket s(io_service);
33 tcp::resolver resolver(io_service);
34 boost::asio::connect(s, resolver.resolve({argv[1], argv[2]}));
36 std::cout << "Enter message: ";
37 char request[max_length];
38 std::cin.getline(request, max_length);
39 size_t request_length = std::strlen(request);
40 boost::asio::write(s, boost::asio::buffer(request, request_length));
42 char reply[max_length];
43 size_t reply_length = boost::asio::read(s,
44 boost::asio::buffer(reply, request_length));
45 std::cout << "Reply is: ";
46 std::cout.write(reply, reply_length);
49 catch (std::exception& e)
51 std::cerr << "Exception: " << e.what() << "\n";