diff options
Diffstat (limited to 'doc/protocol.txt')
| -rw-r--r-- | doc/protocol.txt | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/doc/protocol.txt b/doc/protocol.txt index 76f88d67e..a9706f839 100644 --- a/doc/protocol.txt +++ b/doc/protocol.txt @@ -44,3 +44,27 @@ Initialization: u8 type = TYPE_CONTROL = 0 u8 controltype = CONTROLTYPE_DISCO = 2 +- Here's a quick untested connect-disconnect done in PHP: +# host: ip of server (use gethostbyname(hostname) to get from a dns name) +# port: port of server +function check_if_minetestserver_up($host, $port) + $socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP); + $timeout = array("sec" => 1, "usec" => 0); + socket_set_option($socket, SOL_SOCKET, SO_RCVTIMEO, $timeout); + $buf = "\x4f\x45\x74\x03\x00\x00\x00\x03\xff\xdc\x01"; + socket_sendto($socket, $buf, strlen($buf), 0, $host, $port); + $buf = socket_read($socket, 1000); + if($buf != "") + { + # We got a reply! read the peer id from it. + $peer_id = substr($buf, 9, 2); + + # Disconnect + $buf = "\x4f\x45\x74\x03".$peer_id."\x00\x00\x02"; + socket_sendto($socket, $buf, strlen($buf), 0, $host, $port); + socket_close($socket); + + return true; + } + return false; + |