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|
#!/usr/bin/env php
<?php
/*
+-------------------------------------------------------------------------+
| Copyright (C) 2004-2024 The Cacti Group |
| |
| This program is free software; you can redistribute it and/or |
| modify it under the terms of the GNU General Public License |
| as published by the Free Software Foundation; either version 2 |
| of the License, or (at your option) any later version. |
| |
| This program 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 General Public License for more details. |
+-------------------------------------------------------------------------+
| Cacti: The Complete RRDtool-based Graphing Solution |
+-------------------------------------------------------------------------+
| This code is designed, written, and maintained by the Cacti Group. See |
| about.php and/or the AUTHORS file for specific developer information. |
+-------------------------------------------------------------------------+
| http://www.cacti.net/ |
+-------------------------------------------------------------------------+
*/
error_reporting(0);
if (!isset($called_by_script_server)) {
include_once(dirname(__FILE__) . '/../include/cli_check.php');
include_once(dirname(__FILE__) . '/../lib/snmp.php');
include_once(dirname(__FILE__) . '/../lib/ping.php');
array_shift($_SERVER['argv']);
print call_user_func_array('ss_fping', $_SERVER['argv']);
} else {
include_once(dirname(__FILE__) . '/../lib/snmp.php');
include_once(dirname(__FILE__) . '/../lib/ping.php');
}
function ss_fping($hostname = '', $ping_sweeps = 6, $ping_type = 'ICMP', $port = 80) {
/* record start time */
$ss_fping_start = microtime(true);
$ping = new Net_Ping;
$time = array();
$total_time = 0;
$failed_results = 0;
$ping->host['hostname'] = gethostbyname($hostname);
$ping->retries = 1;
$ping->port = $port;
$max = 0.0;
$min = 9999.99;
$dev = 0.0;
$script_timeout = read_config_option('script_timeout');
$ping_timeout = db_fetch_cell_prepared('SELECT ping_timeout
FROM host
WHERE hostname = ?',
array($hostname));
if (empty($ping_timeout)) {
$ping_timeout = read_config_option('ping_timeout');
}
switch (strtoupper($ping_type)) {
case 'ICMP':
$method = PING_ICMP;
break;
case 'TCP':
$method = PING_TCP;
break;
case 'UDP':
$method = PING_UDP;
break;
}
$i = 0;
while ($i < $ping_sweeps) {
$start = microtime(true);
$result = $ping->ping(AVAIL_PING, $method, $ping_timeout, 1);
$end = microtime(true);
if (!$result) {
// Error response
$failed_results++;
$time[$i] = $end - $start;
$total_time += $end - $start;
} elseif (is_numeric($ping->ping_status)) {
$time[$i] = $ping->ping_status;
$total_time += $ping->ping_status;
if ($ping->ping_status < $min) {
$min = $ping->ping_status;
}
if ($ping->ping_status > $max) {
$max = $ping->ping_status;
}
} else {
// Down response
$failed_results++;
$time[$i] = $end - $start;
$total_time += $end - $start;
}
$i++;
/* get current time */
$ss_fping_current = microtime(true);
/* if called from script server, end one second before a timeout occurs */
if (isset($called_by_script_server) && ($ss_fping_current - $ss_fping_start + ($ping_timeout/1000) + 1) > $script_timeout) {
$ping_sweeps = $i;
break;
}
}
if ($failed_results == $ping_sweeps) {
return 'min:U avg:U max:U dev:U loss:100.00';
} else {
$loss = ($failed_results/$ping_sweeps) * 100;
$avg = $total_time/($ping_sweeps-$failed_results);
/* calculate standard deviation */
$predev = 0;
foreach($time as $sample) {
$predev += pow(($sample-$avg),2);
}
$dev = sqrt($predev / cacti_count($time));
return sprintf('min:%0.4f avg:%0.4f max:%0.4f dev:%0.4f loss:%0.4f', $min, $avg, $max, $dev, $loss);
}
}
|
