source: branches/2.3/phpgwapi/inc/class.ping.inc.php @ 2

<?php
        /**************************************************************************\
        * eGroupWare API - Ping class                                              *
        * This file written by Joseph Engo <jengo@phpgroupware.org>                *
        * Linux only ping class for detecting network connections                  *
        * Copyright (C) 2001 Joseph Engo                                           *
        * -------------------------------------------------------------------------*
        * This library is part of the eGroupWare API                               *
        * http://www.egroupware.org/api                                            *
        * ------------------------------------------------------------------------ *
        * This library is free software; you can redistribute it and/or modify it  *
        * under the terms of the GNU Lesser General Public License as published by *
        * the Free Software Foundation; either version 2.1 of the License,         *
        * or any later version.                                                    *
        * This library is distributed in the hope that it will be useful, but      *
        * WITHOUT ANY WARRANTY; without even the implied warranty of               *
        * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.                     *
        * See the GNU Lesser General Public License for more details.              *
        * You should have received a copy of the GNU Lesser General Public License *
        * along with this library; if not, write to the Free Software Foundation,  *
        * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA            *
        \**************************************************************************/


        class ping
        {
                var $hostname;
                var $packet_tx;
                var $packet_rx;
                var $packet_loss;
                var $reponse_min;
                var $reponse_max;
                var $reponse_avg;
                var $reponse_mdev;

                var $raw_array_of_data = array();

                function ping($hostname)
                {
                        $this->hostname = $hostname;
                        $this->re_ping();
                }

                function clear_values()
                {
                        $this->packet_tx         = 0;
                        $this->packet_rx         = 0;
                        $this->packet_loss       = 0;
                        $this->reponse_min       = '';
                        $this->reponse_max       = '';
                        $this->reponse_avg       = '';
                        $this->reponse_mdev      = '';
                        $this->raw_array_of_data = array();
                }

                function re_ping()
                {
                        $this->clear_values();

                        $raw_data = `ping -c 5 $this->hostname`;
                        $this->raw_array_of_data = explode("\n",$raw_data);

                        $this->parse_times();
                        $this->parse_responses();
                }

                function parse_responses()
                {
                        $dl     = $this->raw_array_of_data[count($this->raw_array_of_data) - 3];
                        $values = explode(',',$dl);

                        $packet_tx   = str_replace(' packets transmitted','',$values[0]);
                        $packet_rx   = str_replace(' packets received','',$values[1]);
                        $packet_loss = ereg_replace('% packet loss','',$values[2]);

                        $this->packet_tx   = (int)str_replace(' ','',$packet_tx);
                        $this->packet_rx   = (int)str_replace(' ','',$packet_rx);
                        $this->packet_loss = (int)str_replace(' ','',$packet_loss);
                }

                function parse_times()
                {
                        $tl          = $this->raw_array_of_data[count($this->raw_array_of_data) - 2];
                        $times_split = explode(' = ',$tl);
                        $raw_times   = $times_split[1];
                        $raw_times   = str_replace(' ms','',$raw_times);
                        $values      = explode('/',$raw_times);

                        $this->response_min  = $values[0];
                        $this->response_avg  = $values[1];
                        $this->response_max  = $values[2];
                        $this->response_mdev = $values[3];
                }

                function debug_output()
                {
                        echo '<br><b>Debug output</b><hr width="20%" align="left">';
                        echo '<b>hostname:</b> ' . $this->hostname;
                        echo '<br><b>tx:</b> ' . $this->packet_tx;
                        echo '<br><b>rx:</b> ' . $this->packet_rx;
                        echo '<br><b>loss:</b> ' . $this->packet_loss;
                        echo '<br><b>min:</b> ' . $this->response_min;
                        echo '<br><b>max:</b> ' . $this->response_max;
                        echo '<br><b>avg:</b> ' . $this->response_avg;
                        echo '<br><b>mdev:</b> ' . $this->response_mdev;
                }
        }