UDP an d php

[Anon]

Lo,

I'm trying to make a script that gets details of a game, half-life, running on a server to do this i have to write to port and read back the data each peiece of info is seperated by the null char \x00 however if i try to read more than 90 the script hangs and times out. Not as in a normal too long to execute but the error box pops up in IE saying it time out and connection with server is reset. Yet the server send more than 90 chars if i put in a loop with only reading 80 at a time it still hangs there 14 pieces of info the server returns. I intend to display this info in a HTML file but first i have to get it!

if you dont uderstand my explantion but think u can help email me or replky and ill try to explain it more.

heres the code:

<?PHP

$fp = fsockopen("udp://193.82.159.232", 27015, &$errno, &$errstr);
if (!$fp)
{
echo "ERROR: $errno - $errstr<br>\n";
}
else
{
fwrite($fp,"ÿÿÿÿdetails\x00");
$got = 0;
while($got != 14)
{
$buffer = fread($fp, 80);
$place = 5;
$found = 0;
while($found != 1)
{
if($buffer[$place] == "\x00")
{
$found = 1;
}
else
{
$details[$got] .= $buffer[$place];
$place++;
}
}
print(" $details[$got] ");
$got++;
}
fclose($fp);
}

?>

thanx in advance.

[Anon]

Hi

I had the same problem, except i wanted to query a quake3arena server. i've come up wit this solution.
you need to do a socket_set_blocking($fp,0); before reading the last line of data you know will always be returned.

Ok. here's the script for Q3a. differs onli that i'm sending the server the text "getinfo" instead of "deatils" here.

//Q3 query/parsescript by [e-mail] 01/2001
//Open the network for transmission.
$fp = fsockopen("udp://$serverip",$port, &$errno, &$errstr,10);
if (!$fp)
{
//Something didn't work....
echo "ERROR: $errno - $errstr\n";
exit;
}
else
{
//Send statusrequest.
fwrite($fp,"ÿÿÿÿgetstatus\x00");
//wait till we receive a header and store it (isn't used at the moment)
//2Do, use header to determine, if we're really talking to the right server/getting the right data.
$header=fgets($fp, 20);
//now we get the the servers statusdata in one line
$data=fgets($fp, 1500);
//Prepare socket for end of transmission from gameserver (don't ask me why you need to do that manually)
socket_set_blocking($fp,0);
//Now the server lists it's clients, one each line
$playernum=0;
while(!feof($fp))
{
//put the playerinformation in an array, while counting total number of players.
$player[$playernum]=fgets($fp, 100);
$playernum++;
}
//Closing connetion
fclose($fp);

[Anon]

hi there thanx for the help, i completly forgot bout the post, yea i solved it as well but i read one byte at a time till the end of the packet.

the finished script is at:
http://clans.morat.net/the/fsocktest.php?ip=194.202.78.113&port=27015
it reads from any HL server running any mod it doesnt quite work thu not sure hot to convert the time bytes into a time (i gave up 🙁 )

heres the code (sorry no comments any questions just post or email me):
(it needs to vars passed to it $ip $port)
<?PHP

$name[0] = "IP";
$name[1] = "Server Name";
$name[2] = "Map";
$name[3] = "Mod";
$name[4] = "Mod Name";
$name[5] = "Players";
$name[6] = "Max Players";
$name[7] = "Protocol";
$name[8] = "Type of server";
$name[9] = "Server OS";
$name[10] = "Locked";
$name[11] = "Mod URL";

$fp = fsockopen("udp://$ip", $port, &$errno, &$errstr);

if (!$fp)
{
echo "ERROR: $errno - $errstr<br>\n";
}
else
{
fwrite($fp,"ÿÿÿÿdetails\x00");
$got = 0;
$max = 0;
$done =0;
$do = true;
while($do)
{
$max++;
$str = fread($fp, 1);
$buffer .= $str;
if($str == "\x00")
{
$done++;
}
if($done == 11)
{
$do = false;
}
}
fclose($fp);

}

$place = 5;

while($got <5)
{
  while(($buffer[$place] != "\x00") and ($place < $max) )
  {
    $details[$got] .= $buffer[$place];
    $place++;
  }
  $got++;
  $place++;
}



if($got == 5)
{

  $tmp = $buffer[$place];
  $details[$got] = ord($tmp); //clients
  $got++;
  $place++;

  $tmp = $buffer[$place];
  $details[$got] = ord($tmp); //max clients
  $got++;
  $place++;

  $tmp = $buffer[$place];
  $details[$got] = ord($tmp); //protocol
  $got++;
  $place++;


  if( $buffer[$place] == "l" )
  {
    $details[$got] = "Listen Server";
  }
  else if( $buffer[$place] == "d" )
  {
    $details[$got] = "Dedicated Server";
  }
  $got++;
  $place++;


  if( $buffer[$place] == "l" )
  {
    $details[$got] = "Linux";
  }
  else if( $buffer[$place] == "w" )
  {
    $details[$got] = "Win32";
  }
  $got++;
  $place++;



  if( ord($buffer[$place]) == 1 )
  {
    $details[$got] = "Yes";
  }
  else
  {
    $details[$got] = "No";
  }
  $got++;
  $place++;
  $place++;

  while(($buffer[$place] != "\x00") and ($place < $max) )
  {
    $details[$got] .= $buffer[$place];
    $place++;
  }

}  //end if

$fp = fsockopen("udp://$ip", $port, &$errno, &$errstr);
// get player info below

if (!$fp)
{
echo "ERROR: $errno - $errstr<br>\n";
}
else
{
fwrite($fp,"ÿÿÿÿplayers\x00");

$str = fread($fp, 6);
$top = ord($str[5]);



for($usr = 0; $usr <= ($top-1); $usr++)
{
  $do = true;

  $str = fread($fp, 1);
  $pindex[$usr] = ord($str);

  while($do)
  {
    $str = fread($fp,1);
    if($str == "\x00")
    {
      $do = false;
    }
    else
    {
      $pname[$usr] .= $str;
    }
  }
  $tot = 0;
  $str = fread($fp, 1);
  $tot += ord($str);
  $str = fread($fp, 1);
  $tot += ord($str) * 256;
  $str = fread($fp, 1);
  $tot += ord($str) * 65536;
  $str = fread($fp, 1);
  $tot += ord($str) * 16777216;

  if($tot >= 16777216)
  { // ie is negative
    $tot -= (4294967296);
  }
  $pfrag[$usr] = $tot;

  $tot = 0;
  $str = fread($fp, 1);
  $tot += ord($str);
  $str = fread($fp, 1);
  $tot += ord($str) * 256;
  $str = fread($fp, 1);
  $tot += ord($str) * 65536;
  $str = fread($fp, 1);
  $tot += ord($str) * 16777216;



  $ptime[$usr] = $tot;

}



fclose($fp);

Print("

<head>
<link rel=\"stylesheet\" type=\"text/css\" href=\"ukcsa.css\">
<title>Server Stats</title>
</head>

<body>

<table border=\"0\" width=\"100%\">
<tr>
<td width=\"100%\" colspan=\"2\">
<h4 align=\"center\">$details[1]</h4>
</td>
</tr>
<tr>
<td width=\"50%\"></td>
<td width=\"50%\"></td>
</tr>
");
if($details[11] == "yes")
{
print("
<tr>
<td width=\"100%\" colspan=\"2\">
<p align=\"center\"><font color=\"#FF0000\">Warning this server is passworded!</font></td>
</tr>
");
}
else
{
print("
<tr>
<td width=\"100%\" colspan=\"2\">
<p align=\"center\"></td>
</tr>
");
}

print("

<tr>
<td width=\"50%\"><b>IP:</b> $details[0]</td>
<td width=\"50%\"><b>Players</b>: $details[5]/$details[6]</td>
</tr>
<tr>
<td width=\"50%\"><b>Map:</b> $details[2]</td>
<td width=\"50%\"><b>Host: </b>$details[9] $details[8]</td>
</tr>
<tr>
<td width=\"100%\" colspan=\"2\"></td>
</tr>
<tr>
<td width=\"100%\" colspan=\"2\">The server is running $details[4] you can
download this from <a href=http://$details[11]>$details[11]</a></td>
</tr>
<tr>
<td width=\"50%\"></td>
<td width=\"50%\"></td>
</tr>
<tr>
<td width=\"50%\"><b>Scores:</b></td>
<td width=\"50%\"></td>
</tr>
<tr>
<td width=\"50%\" align=\"center\">
<table border=\"0\" width=\"100%\">
<tr>
<td width=\"80%\">Name;</td>
<td width=\"20%\">Frags;</td>
</tr>
</table>
</td>
<td width=\"50%\" align=\"center\"></td>
</tr>
");

for($c = 0;$c <= ($top-1); $c++)
{

print("
<tr>
<td width=\"50%\" align=\"center\">
<table border=\"0\" width=\"100%\">
<tr>
<td width=\"80%\">$pname[$c]</td>
<td width=\"20%\">$pfrag[$c]</td>
</tr>
</table>

</td>
<td width=\"50%\" align=\"center\"></td>
</tr>
");

}

print("
</table>

</body>

");

}

?>

[Anon]

Ok

Is it possible to get any other information?

Who killed who
round won/drawn etc

Im thinking of a cool realtime thing here.

And i know it kicks all that information out!

[Anon]

Erm u need to set remote logging to log to ur program it then passes the
logs for information. The server wont just return info like that from a
query only clients n the log get that sorta info.