| // |
| // blocking_tcp_echo_client.cpp |
| // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2021 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 "asio.hpp" |
| |
| using 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; |
| } |
| |
| asio::io_context io_context; |
| |
| tcp::socket s(io_context); |
| tcp::resolver resolver(io_context); |
| asio::connect(s, resolver.resolve(argv[1], argv[2])); |
| |
| std::cout << "Enter message: "; |
| char request[max_length]; |
| std::cin.getline(request, max_length); |
| size_t request_length = std::strlen(request); |
| asio::write(s, asio::buffer(request, request_length)); |
| |
| char reply[max_length]; |
| size_t reply_length = asio::read(s, |
| 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; |
| } |