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this code is strange !

d.shankar

By d.shankar
in PHP Coding Help

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d.shankar Regular Member

d.shankar

Posted
Posted

Hi i got this code from the web.. It checks for live and dead socks

It is working perfectly on my localhost. but does not work in any webserver ! any ideas ?

 

<?php
$filename = "proxies.txt"; //or a localpath.
$rel=file_get_contents($filename);
$ipset = explode("\n",$rel); // explode it based on your delimiter.
foreach($ipset as $ips)
{
$ipandport=explode(':',$ips);
//Porxy string format might be 123.156.189.112:8080
$host=$ipandport[0];
$i=(int)$ipandport[1];
$fp = @fsockopen("tcp://".$host,$i,$errno,$errstr,10);
// tcp:// because, socks4 uses TCP and socks5 uses TCP & UDP
if($fp)
{
echo("Result is $fp");
echo ("port " . $i . " open on " . $host . "");
fclose($fp);
}
flush();
}
?>

 

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Deoctor Member

Deoctor

Posted
Posted

i think i have made it out..

just check this code..

<html>
<title>Check the Open ports</title>
<pre>                                    <font size=3><b>Hai
                         Using this application u can check the ports that are opened in the ip address.
                         If no port is mentioned it will check for the default ports..
                         <a href="http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers" target="_blank">For list of TCP/UDP ports</a>
                             Common Ports Used are 
                         
                                FTP    21
                                SSH    22
                                Telnet    23
                                SMTP    25
                                Web    80
                                Pop 3    110
                                IMAP    143
                                Other Applications
                                    Remote Desktop    3389
                                    PC Anywhere    5631</b></font>
</pre>

<body background="image01.jpg" bgproperties="fixed">
<form action="timer.php" method="POST">
<br><br><br>
<table align="center" border="1" bordercolor="black">
<tr>
<td align="left" bgcolor="transparent" valign="center">Ip address:<input type=text style="color: #FF0000;font-family: Verdana;font-weight: bold;font-size: 14px;background-color: transparent;" maxlength='30' name=address></td></tr><tr></tr> 
<tr><td align="left" bgcolor="transparent" valign="center">Port Number:<input type=text style="color: #FF0000;font-family: Verdana;font-weight: bold;font-size: 14px;background-color: transparent;" maxlength='25' name=service></td></tr>
<tr><td align="center" valign="center"><input type=submit name=submit value=Submit></td>
</tr>
</table>
</form>
</body>
</html>
<?php
error_reporting(0); 
$address = $_POST['address']; 
$service = $_POST['service']; 
if($address && $service)
{
    if(fsockopen($address,$service,$errno,$errstr,10)) 
{
      //echo "$address:$service is up!";
    echo ("<table><td bgcolor=green width=100% align='center'><font face=Verdana, Arial, Helvetica, sans-serif size=2><b>$address:$service is up!</b></font></td></table>");

}
else 
{
     //echo "$address:$service is NOT up!";
     echo ("<table><td bgcolor=red width=100% align='center'><font face=Verdana, Arial, Helvetica, sans-serif size=2><b>$address:$service is Down!</b></font></td></table>");
}
}
elseif($address)
{
include("scanner.class.php");
/* get the target ip address */
  $ip_address = gethostbyname("$address");
   error_reporting(off);
  /* set all the require atributes */
  $my_scanner = new PortScanner($ip_address,$ip_address);
  $my_scanner->set_ports("15-25,80,110,143,3306,3389,5631,1337,666");
  $my_scanner->set_delay(1);
  $my_scanner->set_wait(2);

  /* do the scan and capture the results */
  $results = $my_scanner->do_scan();


  /* display the results - this simply loops through the ip addresses and indents the results */
  foreach($results as $ip=>$ip_results) 
  {
      echo gethostbyaddr($ip)."\n<blockquote>\n";
    foreach($ip_results as $port=>$port_results) 
    {
        echo "\t".$port." : ".$port_results['pname']." : ";
      if ($port_results['status']==1)
      {
      //echo "open";
      echo ("<table><td bgcolor=Green width=100% align='center'><font face=Verdana, Arial, Helvetica, sans-serif size=2><b>Open</b></font></td></table>");
      }
      else 
      {
      //echo "closed";
      echo ("<table><td bgcolor=Red width=100% align='center'><font face=Verdana, Arial, Helvetica, sans-serif size=2><b>Closed</b></font></td></table>");
      }
      echo "<br>\n";
    }
    echo "</blockquote>\n\n";
  }
}
else
{
    
}
?>

 

scanner.class.php

<?


  class PortScanner 
  {
      var $start_ip;    /* start of the ip range to scan */
    var $stop_ip;     /* end of the ip range to scan */
    var $current_ip;  /* current ip address being scanned (this is for future features) */
    var $ports;       /* array of ports to be scanned */
    var $wait;        /* how long to wait for a response from the port */
    var $delay;       /* how long to pause between each port */

    /***
     * Function PortScanner()
     * Class constructor.
     * Sets the start and end address of the scan range
     * must be passed... but may be the same.
     * The end address must be greater than the start address.
     ***/
    function PortScanner($start, $stop) 
    {
        $this->start_ip = ip2long($start);  /* store the start ip address as a long number */
        $this->stop_ip = ip2long($stop);    /* store the end ip address as a long number */
    }

    /***
     * Function set_ports
     * Adds the passed ports to the array of ports to be scanned.
     * This can either be a single port, a range of ports e.g. 1-90
     * a a combination of both separated by commas (no spaces).
     ***/
    function set_ports($ports) 
    {
        /* Explode ports into an array based on comma seperation.
         Will create an array even if there is no comma so no need
         to check for an array in following code */
      $ports_array = explode(",",$ports);

      /* loop through array of ports */
      foreach($ports_array as $key=>$val)
       {
        /* try to explode port range into an array */
          if(ereg("([0-9]+)\-([0-9]+)",$val, $buff)) 
        {
          /* loop through range to add each port */
              for($ii=$buff[1]; $ii<=$buff[2]; $ii++) 
            {
                  $this->ports[] = $ii;
          }
        } 
        else 
        {
          /* only one port was sent so add that */
          $this->ports[] = $val;
        }
      }
    }

    /***
     * Function set_wait
     * Sets the time to wait for response from socket.
     * Good object-oriented design doesn't allow access to class
     * attributes, so accessor functions are provided.
     ***/
    function set_wait($wait) 
    {
      $this->wait = $wait;
    }
    
    /***
     * Function set_delay
     * Sets the delay between each port check. Delay is in micro-seconds.
     * Good object-oriented design doesn't allow access to class
     * attributes, so accessor functions are provided.
     ***/
    function set_delay($seconds=0, $microseconds=0) 
    {
        $this->delay = (1000000*$seconds) + $microseconds;
    }

    /***
     * Function do_scan
     * Does the actual scan, based on the given details (see above functions).
     ***/
    function do_scan() 
    {
      /* Loop through ip addresses.
         This is why ip addresses are stored as long numbers as apposed
         to Internet Protocol dotted addresses */
      for($this->current_ip=$this->start_ip; $this->current_ip<=$this->stop_ip; $this->current_ip++) 
      {
          /* convert the long number back to a dotted address */
        $ip = long2ip($this->current_ip);
        
        /* loop through the ports and check each */
        foreach($this->ports as $key=>$port) 
        {
          /* for unix systems, this will obtain the name of the service running
             on that port. Win32 systems will just return N/A. */
          if (!getservbyport($port,"tcp")) {$pname = "N/A";
          }
          else {$pname = getservbyport($port,"tcp");
          }
          
          /* attempt to open a socket to the port at the current ip address */
          $ptcp = fsockopen($ip, $port, &$errno, &$errstr, $this->wait);
          if($ptcp) {$status=1;
          } /* return 1 for open port (so users can display their own message */
          else {$status=0;
          }      /* return 0 for closed port (so users can display their own message */

          /* return the results in a structured multi-dimensioned array
             so the user can choose how to display the results */
          $results["$ip"]["$port"]["pname"] = "$pname";
          $results["$ip"]["$port"]["status"] = "$status";

          /* start the delay before moving on to the next port */
          $this->do_delay($this->delay);
        }
      }

      /* returnt the results to the user */
      Return $results;
    }

    /*** 
     * Function do_delay
     * This pauses execution for the passed length of time (micro-seconds)
     * This allows a delay of less than 1 second for system which do not 
     * support usleep (Win32).
     * This code was post on the PHP manual by "dsc at c2i dot net"
     * I'm not sure if this works or not, so if your running *nix you
     * may want to change this to use usleep();
     ***/
    function do_delay($delay) 
    {
      $start = gettimeofday();
      do
      {
        $stop = gettimeofday();
        $timePassed = 1000000 * ($stop['sec'] - $start['sec']) + $stop['usec'] - $start['usec'];
      }
      while  ($timePassed < $delay);
    }
  }

?>

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Deoctor Member

Deoctor

Posted
Posted

the reason for your code might not be working on the server is that either ur antivirus could have blocked the port scanning..

or else ur app might have been using the large part of CPU..so that it could have stopped executing after 10 seconds

i too have uploaded it to my server it using max cpu so i have removed it off.

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d.shankar Regular Member

d.shankar

Posted
  • Author
Posted

Have you tried removing the error suppressor so you can actually see if you get any errors?

 

Yea dude i tried like this. I get a white blank page , but it works on my localhost :(

 

<?php
set_time_limit(0); 
error_reporting(E_ALL);
$filename = "proxies.txt"; //or a localpath.
$rel=file_get_contents($filename);
$ipset = explode("\n",$rel); // explode it based on your delimiter.
foreach($ipset as $ips)
{
$ipandport=explode(':',$ips);
//Porxy string format might be 123.156.189.112:8080
$host=$ipandport[0];
$i=(int)$ipandport[1];
$fp = fsockopen("tcp://".$host,$i,$errno,$errstr,10);
// tcp:// because, socks4 uses TCP and socks5 uses TCP & UDP
if($fp)
{
echo("Result is $fp");
echo ("port " . $i . " open on " . $host . "");
fclose($fp);
}
flush();
}
?>

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Deoctor Member

Deoctor

Posted
Posted

ok i have checked it out..and the thing is i dont find any difference between what u are doing and wht i have written forgetting abt the input part.

so if u dont give the port number in my code it will search for some of the default ports and it will check whether they are open are not.

i think u can use my code and change the input part..

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Deoctor Member

Deoctor

Posted
Posted

dude just a question...

 

we are just checking a single ip&port and it returns it is down within 10 seconds.. s i think we dont need to increase the timeout..

 

because the script stops within 10 seconds or less.

 

dude i know that but just for checking increase and see, coz sometimes the server can nnot proceed until the delay time or else the web administrator might have blocked the scripts such as this.

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