| 15 | using boost::asio::ip::tcp; |
| 16 | |
| 17 | int main(int argc, char* argv[]) |
| 18 | { |
| 19 | try |
| 20 | { |
| 21 | if (argc != 2) |
| 22 | { |
| 23 | std::cerr << "Usage: client <host>" << std::endl; |
| 24 | return 1; |
| 25 | } |
| 26 | |
| 27 | boost::asio::io_context io_context; |
| 28 | |
| 29 | tcp::resolver resolver(io_context); |
| 30 | tcp::resolver::results_type endpoints = |
| 31 | resolver.resolve(argv[1], "daytime"); |
| 32 | |
| 33 | tcp::socket socket(io_context); |
| 34 | boost::asio::connect(socket, endpoints); |
| 35 | |
| 36 | for (;;) |
| 37 | { |
| 38 | std::array<char, 128> buf; |
| 39 | boost::system::error_code error; |
| 40 | |
| 41 | size_t len = socket.read_some(boost::asio::buffer(buf), error); |
| 42 | |
| 43 | if (error == boost::asio::error::eof) |
| 44 | break; // Connection closed cleanly by peer. |
| 45 | else if (error) |
| 46 | throw boost::system::system_error(error); // Some other error. |
| 47 | |
| 48 | std::cout.write(buf.data(), len); |
| 49 | } |
| 50 | } |
| 51 | catch (std::exception& e) |
| 52 | { |
| 53 | std::cerr << e.what() << std::endl; |
| 54 | } |
| 55 | |
| 56 | return 0; |
| 57 | } |