sendPingTime = hrtime_ms(); $ping->clientId = $rakNetClientId; $serializer = new PacketSerializer(); $ping->encode($serializer); if(@socket_sendto($socket, $serializer->getBuffer(), strlen($serializer->getBuffer()), MSG_DONTROUTE, $serverIp, $serverPort) === false){ \GlobalLogger::get()->error("Failed to send ping: " . socket_strerror(socket_last_error($socket))); return false; } \GlobalLogger::get()->info("Ping sent to $serverIp on port $serverPort, waiting for response (press CTRL+C to abort)"); $r = [$socket]; $w = $e = null; if(socket_select($r, $w, $e, $timeoutSeconds) === 1){ $response = @socket_recvfrom($socket, $recvBuffer, 65535, 0, $recvAddr, $recvPort); if($response === false){ \GlobalLogger::get()->error("Error reading from socket: " . socket_strerror(socket_last_error($socket))); return false; } if($recvAddr === $serverIp && $recvPort === $serverPort && $recvBuffer !== "" && ord($recvBuffer[0]) === MessageIdentifiers::ID_UNCONNECTED_PONG){ $pong = new UnconnectedPong(); $pong->decode(new PacketSerializer($recvBuffer)); \GlobalLogger::get()->info("--- Response received ---"); \GlobalLogger::get()->info("Payload: $pong->serverName"); \GlobalLogger::get()->info("Response time: " . (hrtime_ms() - $pong->sendPingTime) . " ms"); return true; }else{ \GlobalLogger::get()->debug("Garbage packet from $recvAddr $recvPort: " . bin2hex($recvBuffer)); } } \GlobalLogger::get()->info("No ping response after $timeoutSeconds seconds"); return false; } if(count($argv) > 3){ echo "Usage: " . PHP_BINARY . " " . __FILE__ . " [server IP] [server port]\n"; exit(1); } if(count($argv) > 1){ $hostName = $argv[1]; }else{ do{ $hostName = read_stdin("Server address"); }while($hostName === ""); } $serverIps = gethostbynamel($hostName); if($serverIps === false){ \GlobalLogger::get()->critical("Unable to resolve hostname $hostName to an IP address"); exit(1); } if(count($serverIps) > 1){ \GlobalLogger::get()->warning("Multiple IP addresses found for hostname $hostName, using the first one: " . $serverIps[0]); } $server = $serverIps[0]; \GlobalLogger::get()->info("Resolved hostname to $server"); if(count($argv) > 2){ $port = (int) $argv[2]; }elseif(count($argv) > 1){ $port = 19132; }else{ $portRaw = read_stdin("Server port (empty for 19132)"); $port = $portRaw === "" ? 19132 : (int) $portRaw; } $sock = Utils::assumeNotFalse(socket_create(AF_INET, SOCK_DGRAM, SOL_UDP)); socket_bind($sock, "0.0.0.0"); socket_getsockname($sock, $bindAddr, $bindPort); \GlobalLogger::get()->info("Bound to $bindAddr on port $bindPort"); $start = time(); while(time() < $start + 60_000 && !ping_server($sock, $server, $port, 5, mt_rand(0, PHP_INT_MAX))){ sleep(1); } socket_close($sock);