1
2////////////////////////////////////////////////////////////
3// Headers
4////////////////////////////////////////////////////////////
5#include <SFML/Network.hpp>
6#include <iostream>
7
8
9////////////////////////////////////////////////////////////
10/// Launch a server, wait for an incoming connection,
11/// send a message and wait for the answer.
12///
13////////////////////////////////////////////////////////////
14void runTcpServer(unsigned short port)
15{
16 // Create a server socket to accept new connections
17 sf::TcpListener listener;
18
19 // Listen to the given port for incoming connections
20 if (listener.listen(port) != sf::Socket::Done)
21 return;
22 std::cout << "Server is listening to port " << port << ", waiting for connections... " << std::endl;
23
24 // Wait for a connection
25 sf::TcpSocket socket;
26 if (listener.accept(socket) != sf::Socket::Done)
27 return;
28 std::cout << "Client connected: " << socket.getRemoteAddress() << std::endl;
29
30 // Send a message to the connected client
31 const char out[] = "Hi, I'm the server";
32 if (socket.send(out, sizeof(out)) != sf::Socket::Done)
33 return;
34 std::cout << "Message sent to the client: \"" << out << "\"" << std::endl;
35
36 // Receive a message back from the client
37 char in[128];
38 std::size_t received;
39 if (socket.receive(in, sizeof(in), received) != sf::Socket::Done)
40 return;
41 std::cout << "Answer received from the client: \"" << in << "\"" << std::endl;
42}
43
44
45////////////////////////////////////////////////////////////
46/// Create a client, connect it to a server, display the
47/// welcome message and send an answer.
48///
49////////////////////////////////////////////////////////////
50void runTcpClient(unsigned short port)
51{
52 // Ask for the server address
53 sf::IpAddress server;
54 do
55 {
56 std::cout << "Type the address or name of the server to connect to: ";
57 std::cin >> server;
58 }
59 while (server == sf::IpAddress::None);
60
61 // Create a socket for communicating with the server
62 sf::TcpSocket socket;
63
64 // Connect to the server
65 if (socket.connect(server, port) != sf::Socket::Done)
66 return;
67 std::cout << "Connected to server " << server << std::endl;
68
69 // Receive a message from the server
70 char in[128];
71 std::size_t received;
72 if (socket.receive(in, sizeof(in), received) != sf::Socket::Done)
73 return;
74 std::cout << "Message received from the server: \"" << in << "\"" << std::endl;
75
76 // Send an answer to the server
77 const char out[] = "Hi, I'm a client";
78 if (socket.send(out, sizeof(out)) != sf::Socket::Done)
79 return;
80 std::cout << "Message sent to the server: \"" << out << "\"" << std::endl;
81}
82