Error: fread --> fread(): Length parameter must be greater than 0

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XenomX

XenomX

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Lid geworden
27 apr 2002
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822
Hallo,

Ik gebruikte (jaar terug) de onderstaande functie om een counter-strike server te query'en.
Maar als ik hem nu weer gebruik krijg ik een error in madquery.php op lijn 310:

fread(): Length parameter must be greater than 0

Ik gebruikte eerst PHP4, nu PHP5 is dit misschien het probleem? En hoe is dit op te lossen?

query1.php - hiermee roep ik de functie aan.
PHP: 
<?php
include 'madquery.php';
echo "<center>";
$myserver=new madQuery("83.149.65.214",27017); 
$myserver->getdetails(); 
$myserver->getplayers();
 
echo "<b>" . $myserver->mHostname()."</b><br>".$myserver->mActive()." / ".$myserver->mMax() . "<br>"; 
echo "Server is ".($myserver->mIsSecure() ? "" : "NOT ")."secure!\n<br>"; 
echo "Current map: " . $myserver->mMap();
echo "<br>Ping: " . $myserver->mPing();
echo "<br><br><br>" . $myserver->mAddress();
?>

madquery.php Error op lijn 310
PHP: 
<?php 
define("ERROR_NOERROR" ,0); 
define("ERROR_NOSERVER",-1); 
define("ERROR_INSOCKET",-2); 
//define("DEBUG",1); 

function get_float32($fourchars) { 
   $bin=''; 
   for($loop = 0; $loop <= 3; $loop++) { 
      $bin = str_pad(decbin(ord(substr($fourchars, $loop, 1))), 8, '0', STR_PAD_LEFT).$bin; 
   }
   $exponent = bindec(substr($bin, 1, 8)); 
   $exponent = ($exponent)? $exponent - 127 : $exponent; 
   if($exponent) { 
      $int = bindec('1'.substr($bin, 9, $exponent)); 
      $dec = bindec(substr($bin, 9 + $exponent)); 
      $time = "$int.$dec";     
      return number_format($time / 60, 2); 
   } else { 
      return 0.0; 
   } 
} 

/****** 
* getmicrotime() 
* as provided in the PHP manual 
******/ 
function getmicrotime(){ 
   list($usec, $sec) = explode(" ",microtime()); 
   return ((float)$usec + (float)$sec); 
} 
    
function dodebug($dbgstr="") { 
   if(defined('DEBUG')) echo "<!-- [DEBUG] " . $dbgstr . " -->\n"; 
} 
/*********************************************** 
* madQuery Class 
***********************************************/ 
class madQuery { 
   var $_arr=array(); 
   var $_ip=""; 
   var $_port=0; 
   var $_isconnected=0; 
   var $_players=array(); 
   var $_rules=array(); 
   var $_errorcode=ERROR_NOERROR; 
   var $_seed="madQuery for server (%s:%d)"; 
   var $_sk; //socket 
    
   //Constructor 
   function madQuery($serverip, $serverport=27017) 
   { 
      $this->_ip=$serverip; 
      $this->_port=$serverport; 
      $this->_seed=    "\x0a\x3c\x21\x2d\x2d\x20\x20\x20\x20\x20\x20\x20\x53\x65\x72\x76\x65\x72\x20\x6d\x61\x64\x51\x75\x65\x72\x79\x20\x43" 
            ."\x6c\x61\x73\x73\x20\x20\x20\x20\x20\x20\x20\x2d\x2d\x3e\x0a\x3c\x21\x2d\x2d\x20\x20\x20\x20\x43\x6f\x70\x79\x72\x69" 
            ."\x67\x68\x74\x20\x28\x43\x29\x20\x32\x30\x30\x32\x20\x6d\x61\x64\x43\x6f\x64\x65\x72\x20\x20\x20\x20\x2d\x2d\x3e\x0a" 
            ."\x3c\x21\x2d\x2d\x20\x20\x20\x6d\x61\x64\x63\x6f\x64\x65\x72\x40\x73\x74\x75\x64\x65\x6e\x74\x2e\x75\x74\x64\x61\x6c" 
            ."\x6c\x61\x73\x2e\x65\x64\x75\x20\x20\x20\x2d\x2d\x3e\x0a\x3c\x21\x2d\x2d\x20\x68\x74\x74\x70\x3a\x2f\x2f\x77\x77\x77" 
            ."\x2e\x75\x74\x64\x61\x6c\x6c\x61\x73\x2e\x65\x64\x75\x2f\x7e\x6d\x61\x64\x63\x6f\x64\x65\x72\x20\x2d\x2d\x3e\x0a\x0a"; 
      $this->_arr=array_pad($this->_arr, 21, 0); 
      $this->_sk = fsockopen("udp://" . $this->_ip, $this->_port, $errno, $errstr, 3); 
      socket_set_timeout($this->_sk, 2,0); 
      if($tmp=$this->_sockstate()) { 
         //echo $tmp; 
         if(!$this->_sk) 
            echo "ERROR #" .$errno.": ".$errstr; 
         //exit; 
      } 
      dodebug("[Initialized]"); 
      $this->_brand_seed(); 
      return !(!$this->_sk); 
   } 

   //Sets error code 
   function seterror($code) { 
      dodebug("[Setting Error Code (".$code.")]<BR>\n"); 
      $this->_errorcode=$code; 
   } 
    
   //Obtains ping value to server 
   function _ping() 
   { 
      dodebug("[Getting Ping]"); 
      if($tmp=$this->_sockstate()){ 
         //echo $tmp; 
         dodebug("[Error in Socket]"); 
         $this->seterror(ERROR_INSOCKET); 
         return -1; //Error in socket 
      } else { 
         $tmp=""; 
         $start = getmicrotime()*1000; 
         $this->_send("ÿÿÿÿping".chr(0)); 
         while(strlen($tmp)<4 && (getmicrotime()*1000-$start)<1000) { 
            $tmp=$this->_getmore(); 
         } 
         if(strlen($tmp)>=4 && substr($tmp,4,1)=='j') { 
            $end=getmicrotime()*1000; 
            if($end<$start) echo $end .'\n'.$start; 
            return ($end-$start); //($end-$start)>=0 ? ($end-$start) : -1; //Will be numeric ping 
         } else { 
            //echo "Server didn't respond!"; 
            //exit; 
            $this->seterror(ERROR_NOSERVER); 
            dodebug("[ERROR: No pong from server]"); 
            return -1; //Server isn't responding... 
         } 
      } 
      return 0; 
   } 
    
   //Populates details array 
   function getdetails() 
   { 
      dodebug("[Getting Details]"); 
      if($tmp=$this->_sockstate()) { 
         //echo $tmp; 
         $this->seterror(ERROR_INSOCKET); 
         return -1; 
      } else { 
         $this->_send("ÿÿÿÿdetails".chr(0)); 
         $buffer=$this->_getmore(); 
         /*echo $buffer; 
         for ($i=0; $i < strlen($buffer); $i++)  { 
            echo '['.ord(substr($buffer,$i)).'] '; 
         } 
         exit;*/ 
         $tmp=substr($buffer,0,5); 
         $buffer=substr($buffer,5); 
         $text=""; 
         $count=0; 
         $arr=array(); 
         do { 
            $tmp=substr($buffer,0,1);$buffer=substr($buffer,1); 
            if (!ord($tmp)) { $this->_arr[$count++]=$text; $text=""; } 
            else { $text.=$tmp; } 
         } while ($count<5); 
         for($i=0;$i<=6;$i++, $count++) { 
            $tmp=substr($buffer,0,1);$buffer=substr($buffer,1); 
            if($count==8 || $count==9) 
               $this->_arr[$count]=$tmp; 
            else 
               $this->_arr[$count]=ord($tmp); 
         } //count = 12 
         if($this->_arr[$count-1]) { //if ismod 
            do { 
               $tmp=substr($buffer,0,1);$buffer=substr($buffer,1); 
               $this->_arr[$count]=""; 
               if (ord($tmp)!=0) 
                  $this->_arr[$count].=$tmp; // mod website [12] 
            } while(ord($tmp)!=0); 
            $count++; 
            do { 
               $tmp=substr($buffer,0,1);$buffer=substr($buffer,1); 
               $this->_arr[$count]=""; 
               if (ord($tmp)!=0) 
                  $this->_arr[$count].=$tmp; // mod FTP [13] 
            } while(ord($tmp)!=0); 
            $count++; //[14]==Not Used 
            $this->_arr[$count++]=ord(substr($buffer,0,1)); $buffer=substr($buffer,1); 
            $tmp=substr($buffer,0,4);$buffer=substr($buffer,4); 
            for($j=0;$j<4;$j++) { 
               $this->_arr[$count]+=(pow(256,$j) * ord(substr($tmp,$j,1))); //Ver [15] 
            } $count++;             
            $tmp=substr($buffer,0,4);$buffer=substr($buffer,4); 
            for($j=0;$j<4;$j++) { 
               $this->_arr[$count]+=(pow(256,$j) * ord(substr($tmp,$j,1))); //Size [16] 
            } $count++; 
            $this->_arr[$count++]=ord(substr($buffer,0,1));$buffer=substr($buffer,1); //server-only [17] 
            $this->_arr[$count++]=ord(substr($buffer,0,1));$buffer=substr($buffer,1); //custom client.dll [18] 
            $this->_arr[$count++]=ord(substr($buffer,0,1));$buffer=substr($buffer,1); //Secure! [19] 
         } else { 
            for($i=0;$i<8;$i++) 
               $this->_arr[$count++]="\0"; 
         } 
      } 
      $this->_arr[$count]=round($this->_ping(),1); 
      return 0; 
   } 

   // Sets players array 
   function getplayers() 
   { 
      dodebug("[Getting Players]"); 
      //$fp = fsockopen("udp://" . $this->_ip, $this->_port); 
      if($tmp=$this->_sockstate()) { 
         //echo $tmp; 
         $this->seterror(ERROR_INSOCKET); 
         return -1; 
      } else { 
         $this->_send("ÿÿÿÿplayers".chr(0)); 
         $buffer=$this->_getmore(); 
         $buffer=substr($buffer,5); 
         $count=ord(substr($buffer,0,1)); //Num active players 
         $buffer=substr($buffer,1); 
         $tfrags=""; 
         $ttime=0; 
         $arr=array(); 
         for($i=0;$i<$count;$i++) 
         { 
            $rfrags=0.0; 
            $rtime=0; 
            $stime=0; 
            $tind=ord(substr($buffer,0,1)); 
            $buffer=substr($buffer,1); 
            $tname=""; 
            do { 
               $tmp=substr($buffer,0,1); 
               $buffer=substr($buffer,1); 
               if(ord($tmp)!=0) $tname.=$tmp; 
            }while(ord($tmp)!=0); 
            $tfrags=substr($buffer,0,4); 
            $buffer=substr($buffer,4); 
            for($j=0;$j<4;$j++) { 
               $rfrags+=(pow(256,$j) * ord(substr($tfrags,$j,1))); 
            } 
            if($rfrags > 2147483648) { 
               $rfrags-=4294967296; 
            } 
            $tmp=substr($buffer,0,4); 
            $buffer=substr($buffer,4); 
            $rtime=get_float32($tmp); 
            $arr[$i]=array("Index" => $tind,"Name" => $tname,"Frags" => $rfrags, "Time" => $rtime); 
         } 
      } 
      $this->_players=$arr; 
      return 0; 
   } 
    
   function getrules() { 
      dodebug("[Getting Rules]"); 
      $multi=0; 
      //$cvars=array(); 
      if($tmp=$this->_sockstate()) { 
         $this->seterror(ERROR_INSOCKET); 
         return -1; 
      } 
      $this->_send("ÿÿÿÿrules".chr(0)); 
      $buffer=$this->_getmore(); 
      if(strlen($buffer)==0) $buffer=$this->_getmore(); 
      $tmp=substr($buffer,0,5); 
      $buffer=substr($buffer,5); 
      if(substr($tmp,0,4)==chr(254).chr(255).chr(255).chr(255)) { 
         //Now, 5 more bytes to look at.. 
         $multi=1; 
         for($ti=0;$ti<4;$ti++) { 
            $tmp=substr($buffer,0,1); 
            $buffer=substr($buffer,1); 
         } 
         $tmp=substr($buffer,0,5); //yyyyE = Rules Response 
         $buffer=substr($buffer,5); 
      } 
      $count=ord(substr($buffer,0,1));$buffer=substr($buffer,2); //Num rules 
      $i=0; 
      $svar=""; 
      while($i<$count) { 
         if(strlen($buffer)==0 && $multi==1) { 
            $buffer=$this->_getmore(); 
            $tmp=substr($buffer,0,5); //pyyy_ 
            $buffer=substr($buffer,5); 
            $buffer=substr($buffer,4); 
         } 
         $tmp=substr($buffer,0,1); 
         $buffer=substr($buffer,1); 
         if(ord($tmp)==0) 
            $i+=0.5; 
         $svar=$svar.$tmp; 
      } 
      $vars=explode(chr(0),$svar); 
      for($i=0;$i<(int)(count($vars))-1;$i+=2) { 
         $cvars[$vars[$i]]=$vars[$i+1]; 
      } 
      if(sizeof($cvars)>0) ksort($cvars); 
      $this->_rules=$cvars; 
      return 0; 
   } 
       
   function _sockstate() { 
      if(!$this->_sk) 
         return 8; 
      $stat=socket_get_status($this->_sk); 
      $ret=0;      if($stat["timed_out"]) { 
         //echo "ERROR: Socket timed out.<BR>\n"; 
         $ret|=1; 
      } 
      if($stat["eof"]) { 
         //echo "ERROR: Socket closed by remote host.<BR>\n"; 
         $ret|=2; 
      } 
      if($stat["blocked"]) { 
         //echo "PORT BLOCKED!"; 
         //exit; 
         //$ret|=4; 
      } 
      return $ret; 
      //return (!$stat["timed_out"] && !$stat["eof"] && !(!$this->_sk)); 
   } 
    
   function _send($outstr) { 
      if(!$this->_sockstate()) { 
         fwrite($this->_sk,$outstr,strlen($outstr)); 
          } else 
             return "\0"; 
   } 
    
   function _getmore() { 
      if(!$this->_sockstate()) { 
         $tmp=fread($this->_sk,1); 
         $stat=socket_get_status($this->_sk); 
             $tmp.=fread($this->_sk, $stat["unread_bytes"]); 
             return $tmp; 
          } else 
             return "\0"; 
   } 
    
   function _brand_seed() { 
      /************************************************************************************************************************* 
       * Do not edit this function!*//*print(* /$this->_seed/*//*);//*print($this->_seed/*);*//**/print(/**/$this->_seed /**/);/* 
       *************************************************************************************************************************/ 
       $this->_seed=    "\x0a\x3c\x21\x2d\x2d\x20\x20\x20\x20\x20\x20\x20\x53\x65\x72\x76\x65\x72\x20\x6d\x61\x64\x51\x75\x65\x72\x79\x20\x43" 
            ."\x6c\x61\x73\x73\x20\x20\x20\x20\x20\x20\x20\x2d\x2d\x3e\x0a\x3c\x21\x2d\x2d\x20\x20\x20\x20\x43\x6f\x70\x79\x72\x69" 
            ."\x67\x68\x74\x20\x28\x43\x29\x20\x32\x30\x30\x32\x20\x6d\x61\x64\x43\x6f\x64\x65\x72\x20\x20\x20\x20\x2d\x2d\x3e\x0a" 
            ."\x3c\x21\x2d\x2d\x20\x20\x20\x6d\x61\x64\x63\x6f\x64\x65\x72\x40\x73\x74\x75\x64\x65\x6e\x74\x2e\x75\x74\x64\x61\x6c" 
            ."\x6c\x61\x73\x2e\x65\x64\x75\x20\x20\x20\x2d\x2d\x3e\x0a\x3c\x21\x2d\x2d\x20\x68\x74\x74\x70\x3a\x2f\x2f\x77\x77\x77" 
            ."\x2e\x75\x74\x64\x61\x6c\x6c\x61\x73\x2e\x65\x64\x75\x2f\x7e\x6d\x61\x64\x63\x6f\x64\x65\x72\x20\x2d\x2d\x3e\x0a\x0a"; 
      // print($this->_seed); 
   } 
    
   //Returns current errorcode 
   function geterror() { 
      return $this->_errorcode; 
   } 

   function isup() 
   /************************************ 
    * int isup(char * ip, long port); 
    * Return values: 
    *   0 = No response - probably down 
    *   1 = HL Responded - Server is up 
    *  -1 = Error in socket 
    ************************************/ 
   { 
      if($ret=$this->_sockstate()) { 
         //echo $ret; 
         return -1; 
      } else { 
         if($ret & 2) { 
            return 0; 
         } 
         $myping=$this->_ping(); 
         if($myping>0) 
            return $myping; 
         else 
            return 0; 
      } 
   } 

        function mAddress   (){return $this->_arr[ 0];} 
        function mHostname  (){return $this->_arr[ 1];} 
        function mMap       (){return $this->_arr[ 2];} 
        function mModName   (){return $this->_arr[ 3];} 
        function mDescr     (){return $this->_arr[ 4];} 
        function mActive    (){return $this->_arr[ 5];} 
        function mMax       (){return $this->_arr[ 6];} 
        function mProtocol  (){return $this->_arr[ 7];} 
        function mSvrType   (){return $this->_arr[ 8];} 
        function mSvrOS     (){return $this->_arr[ 9];} 
        function mPass      (){return $this->_arr[10];} 
        function mIsMod     (){return $this->_arr[11];} 
        function mModWeb    (){return $this->_arr[12];} 
        function mModFTP    (){return $this->_arr[13];} 
        function mNotUsed   (){return $this->_arr[14];} 
        function mModVer    (){return $this->_arr[15];} 
        function mModSize   (){return $this->_arr[16];} 
        function mSvrOnly   (){return $this->_arr[17];} 
        function mCustom    (){return $this->_arr[18];} 
        function mIsSecure  (){return $this->_arr[19];} 
        function mPing      (){return $this->_arr[20];} 
        function mPlayerData(){return $this->_players;} 
        function mRules     (){return $this->_rules  ;} 

}; 

/* 
$myserver=new madQuery("216.237.145.170",27015); 
$myserver->getdetails(); 
$myserver->getplayers(); 
echo $myserver->mHostname().": ".$myserver->mActive()." / ".$myserver->mMax(); 
echo "Server is ".($myserver->mIsSecure() ? "" : "NOT ")."secure!\n"; 
*/ 
?>

Bij voorbaat dank,
 
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