mirror of
https://github.com/Cacti/cacti.git
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100 lines
2.5 KiB
PHP
100 lines
2.5 KiB
PHP
<?php
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#!/usr/bin/php -q
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$no_http_headers = true;
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/* do NOT run this script through a web browser */
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if (!isset($_SERVER['argv'][0]) || isset($_SERVER['REQUEST_METHOD']) || isset($_SERVER['REMOTE_ADDR'])) {
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die('<br><strong>This script is only meant to run at the command line.</strong>');
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}
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/* display no errors */
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error_reporting(0);
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include_once(dirname(__FILE__) . '/../include/global.php');
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include_once(dirname(__FILE__) . '/../lib/snmp.php');
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include_once(dirname(__FILE__) . '/../lib/ping.php');
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if (!isset($called_by_script_server)) {
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array_shift($_SERVER['argv']);
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print call_user_func_array('ss_fping', $_SERVER['argv']);
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}
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//End header.
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function ss_fping($hostname, $ping_sweeps=6, $ping_type='ICMP', $port=80) {
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/* record start time */
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list($micro,$seconds) = explode(' ', microtime());
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$ss_fping_start = $seconds + $micro;
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$ping = new Net_Ping;
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$time = array();
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$total_time = 0;
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$failed_results = 0;
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$ping->host['hostname'] = gethostbyname($hostname);
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$ping->retries = 1;
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$ping->port = $port;
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$max = 0.0;
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$min = 9999.99;
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$dev = 0.0;
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$script_timeout = read_config_option('script_timeout');
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$ping_timeout = read_config_option('ping_timeout');
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switch ($ping_type) {
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case 'ICMP':
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$method = PING_ICMP;
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break;
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case 'TCP':
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$method = PING_TCP;
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break;
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case 'UDP':
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$method = PING_UDP;
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break;
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}
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$i = 0;
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while ($i < $ping_sweeps) {
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$result = $ping->ping(AVAIL_PING, $method, read_config_option('ping_timeout'), 1);
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if (!$result) {
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$failed_results++;
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} else {
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$time[$i] = $ping->ping_status;
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$total_time += $ping->ping_status;
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if ($ping->ping_status < $min) $min = $ping->ping_status;
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if ($ping->ping_status > $max) $max = $ping->ping_status;
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}
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$i++;
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/* get current time */
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list($micro,$seconds) = explode(' ', microtime());
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$ss_fping_current = $seconds + $micro;
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/* if called from script server, end one second before a timeout occurs */
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if (isset($called_by_script_server) && ($ss_fping_current - $ss_fping_start + ($ping_timeout/1000) + 1) > $script_timeout) {
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$ping_sweeps = $i;
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break;
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}
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}
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if ($failed_results == $ping_sweeps) {
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return 'min:U avg:U max:U dev:U loss:100.00';
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} else {
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$loss = ($failed_results/$ping_sweeps) * 100;
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$avg = $total_time/($ping_sweeps-$failed_results);
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/* calculate standard deviation */
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$predev = 0;
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foreach($time as $sample) {
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$predev += pow(($sample-$avg),2);
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}
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$dev = sqrt($predev / count($time));
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return sprintf('min:%0.4f avg:%0.4f max:%0.4f dev:%0.4f loss:%0.4f', $min, $avg, $max, $dev, $loss);
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}
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}
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