<?PHP

/**

 * Proof of concept class for port scanning in PHP

 * @author David Busby

 *

 * The MIT License

 *

 * Copyright (c) 2005-2008 David Busby

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */

class port_scan

{

        private $result_stack = array();

        private $out = '';

 

        public function __construct($tgt = '127.0.0.1', $protocol = 'tcp', $start_port = 80, $end_port = 90) {

 

                $str    = 'ба PORT SCAN '.(($end_port - $start_port) + 1).' '

                                . strtoupper($protocol).' PORT'.(((($start_port - $end_port) + 1) > 1 )? 'S' : '')

                                . ' ба';

                $this->push_result_stack($str);

                $str = 'HOST: '.$tgt;

                $this->push_result_stack($str);

                $str = 'DATE: '.date('r');

                $this->push_result_stack($str);

                $this->run_scan($tgt, $protocol, $start_port, $end_port);

                $this->output_results();

                echo $this->out;

        }

 

        private function run_scan($tgt, $protocol, $start_port, $end_port) {

 

                switch($protocol) {

                        case 'tcp':

                                $host = 'tcp://';

                        break;

                        case 'udp':

                                $host = 'udp://';

                        break;

                        default:

                                $host = 'tcp://';

                        break;

                }

 

                if($start_port != $end_port) {

                        while($start_port <= $end_port) {

                                //using @ to suppress error on can not connect

                                @$fp = fsockopen($host, $start_port, $errno, $errstr, 0.5);

                                $this->record_result($start_port, $fp);

                                $start_port++;

                        }

                } else {

                        //using @ to suppress error on can not connect

                        @$fp = fsockopen($host, $start_port, $errno, $errstr, 0.5);

                        $this->record_result($start_port, $fp);

                }

        }

 

        private function record_result($port, $open = false) {

                $res = '';

                switch($open) {
                        case true:
                                $res = 'OPEN';
                        break;
                        case false:
                                $res = 'CLOSED';
                        break;
                }
                $this->push_result_stack('PORT '.$port.' '.$res);
        }

        private function push_result_stack($str) {

                array_push($this->result_stack, $str);

        }

        private function output_results() {

                foreach($this->result_stack as $key => $data) {

                        $this->out .= $data."\n";
                }
        }
}

$scan = new port_scan(); 

?>