binstring = $binstring;
$this->position = 0;
$this->length = strlen($this->binstring);
}
function subbin($bytes) {
if($this->position + $bytes <= $this->length) {
$sub = substr($this->binstring, $this->position, $bytes);
$this->position += $bytes;
return $sub;
} else { return false; }
}
function remaining() { return $this->length - $this->position; }
function int8() { if($sub = $this->subbin(1)) return ord($sub); else return false; }
function int16() { if($sub = $this->subbin(2)) { $subsub = unpack("v", $sub); return $subsub[1]; } else return false; }
function int32() { if($sub = $this->subbin(4)) { $subsub = unpack("V", $sub); return $subsub[1]; } else return false; }
function float32() { if($sub = $this->subbin(4)) { $subsub = unpack("f", $sub); return $subsub[1]; } else return false; }
function zstring() {
if($zterm = strpos($this->binstring, "\0", $this->position)) {
$sub = $this->subbin($zterm - $this->position);
$this->position++;
return $sub;
}
}
}
class SrcSrv {
function __construct($server) {
$this->sock = stream_socket_client("udp://$server");
stream_set_timeout($this->sock, 2);
$this->Challenge();
}
function Challenge() {
fwrite($this->sock, "\xff\xff\xff\xffU\xFF\xFF\xFF\xFF");
$resp = fread($this->sock, 1500);
if($resp && $resp[4] == "A") {
$hb = new BinHelp($resp);
$hb->subbin(5);
$this->Challenge = $hb->subbin(4);
return true;
}
return false;
}
function Info() {
fwrite($this->sock, "\xff\xff\xff\xffTSource Engine Query\0");
$resp = fread($this->sock, 1500);
if($resp && $resp[4] == "I") {
$bh = new BinHelp($resp);
$bh->subbin(6);
$retn["name"] = $bh->zstring();
$retn["map"] = $bh->zstring();
$retn["gamedir"] = $bh->zstring();
$retn["desc"] = $bh->zstring();
$retn["appid"] = $bh->int16();
$retn["players"] = $bh->int8();
$retn["max"] = $bh->int8();
$retn["bots"] = $bh->int8();
$retn["dedi"] = $bh->subbin(1);
$retn["os"] = $bh->subbin(1);
$retn["password"] = (bool)$bh->int8();
$retn["vac"] = (bool)$bh->int8();
$retn["version"] = $bh->zstring();
if($edf = $bh->int8()) {
if($edf & 0x80)
$retn["port"] = $bh->int16();
if($edf & 0x20)
$retn["tags"] = $bh->zstring();
}
return $retn;
}
return false;
}
function Players() {
fwrite($this->sock, "\xff\xff\xff\xffU" . $this->Challenge);
$resp = fread($this->sock, 1500);
if($resp && $resp[4] == "D") {
$hb = new BinHelp($resp);
$hb->subbin(6);
$players = $hb->int8();
while($hb->remaining() > 0) {
$hb->int8();
$retn[] = array("name" => $hb->zstring(), "score" => $hb->int32(), "time" => $hb->float32());
}
return $retn;
}
return false;
}
}
$server = new SrcSrv("5.135.179.10:27776");
$q = $server->Info();
if (file_exists("images/".$q['map'].".png")) {
echo '
';
} else {
echo '
';
}
?>