PHP Ping

Started by mario, December 26, 2008, 11:59:41 PM

Previous topic - Next topic
Print
Go Down Pages1
User actions

mario

December 26, 2008, 11:59:41 PM
Code Select

<?php

class Net_Ping
{
 var $icmp_socket;
 var $request;
 var $request_len;
 var $reply;
 var $errstr;
 var $time;
 var $timer_start_time;

 function Net_Ping()
 {
  $this->icmp_socket = socket_create(AF_INET, SOCK_RAW, 1);
  socket_set_block($this->icmp_socket);
 }

 function ip_checksum($data)
 {
    for($i=0;$i<strlen($data);$i += 2)
    {
        if($data[$i+1]) $bits = unpack('n*',$data[$i].$data[$i+1]);
        else $bits = unpack('C*',$data[$i]);
        $sum += $bits[1];
    }
   
    while ($sum>>16) $sum = ($sum & 0xffff) + ($sum >> 16);
    $checksum = pack('n1',~$sum);
    return $checksum;
 }

 function start_time()
 {
  $this->timer_start_time = microtime();
 }

 function get_time($acc=2)
 {
  // format start time
  $start_time = explode (" ", $this->timer_start_time);
  $start_time = $start_time[1] + $start_time[0];
  // get and format end time
  $end_time = explode (" ", microtime());
  $end_time = $end_time[1] + $end_time[0];
  return number_format ($end_time - $start_time, $acc);
 }

 function Build_Packet()
 {
  $data = "abcdefghijklmnopqrstuvwabcdefghi"; // the actual test data
  $type = "\x08"; // 8 echo message; 0 echo reply message
  $code = "\x00"; // always 0 for this program
  $chksm = "\x00\x00"; // generate checksum for icmp request
  $id = "\x00\x00"; // we will have to work with this later
  $sqn = "\x00\x00"; // we will have to work with this later

  // now we need to change the checksum to the real checksum
  $chksm = $this->ip_checksum($type.$code.$chksm.$id.$sqn.$data);

  // now lets build the actual icmp packet
  $this->request = $type.$code.$chksm.$id.$sqn.$data;
  $this->request_len = strlen($this->request);
 }

 function Ping($dst_addr,$timeout=5,$percision=3)
 {
  // lets catch dumb people
  if ((int)$timeout <= 0) $timeout=5;
  if ((int)$percision <= 0) $percision=3;
 
  // set the timeout
  socket_set_option($this->icmp_socket,
    SOL_SOCKET,  // socket level
    SO_RCVTIMEO, // timeout option
    array(
      "sec"=>$timeout, // Timeout in seconds
      "usec"=>0  // I assume timeout in microseconds
      )
    );

  if ($dst_addr)
  {
    if (@socket_connect($this->icmp_socket, $dst_addr, NULL))
    {
   
    } else {
      $this->errstr = "Cannot connect to $dst_addr";
      return FALSE;
    }
    $this->Build_Packet();
    $this->start_time();
    socket_write($this->icmp_socket, $this->request, $this->request_len);
    if (@socket_recv($this->icmp_socket, $this->reply, 256, 0))
    {
      $this->time = $this->get_time($percision);
      return $this->time;
    } else {
      $this->errstr = "Timed out";
      return FALSE;
    }
  } else {
    $this->errstr = "Destination address not specified";
    return FALSE;
  }
 }
}

$ping = new Net_Ping;
$ping->ping("127.0.0.1");

if ($ping->time){
 echo "Time: ".$ping->time;
}
else
{
 echo $ping->errstr;
}
?>

amntiw601

#1
June 24, 2011, 04:49:36 AM
Well written, support it

mikecarmelo

#2
August 22, 2016, 06:03:14 PM
Quote from: mario on December 26, 2008, 11:59:41 PM
Code Select

<?php

class Net_Ping
{
 var $icmp_socket;
 var $request;
 var $request_len;
 var $reply;
 var $errstr;
 var $time;
 var $timer_start_time;

 function Net_Ping()
 {
  $this->icmp_socket = socket_create(AF_INET, SOCK_RAW, 1);
  socket_set_block($this->icmp_socket);
 }

 function ip_checksum($data)
 {
    for($i=0;$i<strlen($data);$i += 2)
    {
        if($data[$i+1]) $bits = unpack('n*',$data[$i].$data[$i+1]);
        else $bits = unpack('C*',$data[$i]);
        $sum += $bits[1];
    }
   
    while ($sum>>16) $sum = ($sum & 0xffff) + ($sum >> 16);
    $checksum = pack('n1',~$sum);
    return $checksum;
 }

 function start_time()
 {
  $this->timer_start_time = microtime();
 }

 function get_time($acc=2)
 {
  // format start time
  $start_time = explode (" ", $this->timer_start_time);
  $start_time = $start_time[1] + $start_time[0];
  // get and format end time
  $end_time = explode (" ", microtime());
  $end_time = $end_time[1] + $end_time[0];
  return number_format ($end_time - $start_time, $acc);
 }

 function Build_Packet()
 {
  $data = "abcdefghijklmnopqrstuvwabcdefghi"; // the actual test data
  $type = "\x08"; // 8 echo message; 0 echo reply message
  $code = "\x00"; // always 0 for this program
  $chksm = "\x00\x00"; // generate checksum for icmp request
  $id = "\x00\x00"; // we will have to work with this later
  $sqn = "\x00\x00"; // we will have to work with this later

  // now we need to change the checksum to the real checksum
  $chksm = $this->ip_checksum($type.$code.$chksm.$id.$sqn.$data);

  // now lets build the actual icmp packet
  $this->request = $type.$code.$chksm.$id.$sqn.$data;
  $this->request_len = strlen($this->request);
 }

 function Ping($dst_addr,$timeout=5,$percision=3)
 {
  // lets catch dumb people
  if ((int)$timeout <= 0) $timeout=5;
  if ((int)$percision <= 0) $percision=3;
 
  // set the timeout
  socket_set_option($this->icmp_socket,
    SOL_SOCKET,  // socket level
    SO_RCVTIMEO, // timeout option
    array(
      "sec"=>$timeout, // Timeout in seconds
      "usec"=>0  // I assume timeout in microseconds
      )
    );

  if ($dst_addr)
  {
    if (@socket_connect($this->icmp_socket, $dst_addr, NULL))
    {
   
    } else {
      $this->errstr = "Cannot connect to $dst_addr";
      return FALSE;
    }
    $this->Build_Packet();
    $this->start_time();
    socket_write($this->icmp_socket, $this->request, $this->request_len);
    if (@socket_recv($this->icmp_socket, $this->reply, 256, 0))
    {
      $this->time = $this->get_time($percision);
      return $this->time;
    } else {
      $this->errstr = "Timed out";
      return FALSE;
    }
  } else {
    $this->errstr = "Destination address not specified";
    return FALSE;
  }
 }
}

$ping = new Net_Ping;
$ping->ping("127.0.0.1");

if ($ping->time){
 echo "Time: ".$ping->time;
}
else
{
 echo $ping->errstr;
}
?>


Marvelous! A well written code....have you done any implementation to this code or this is the final one?
Once again great job!
keep up the good work!
thx!

mario

#3
August 23, 2016, 10:02:16 AM
That is the last version
Print
Go Up Pages1
User actions