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<?php
#!/usr/bin/php -q
//STANDARD SCRIPT SERVER HEADER!!!
$no_http_headers = true;
/* display No errors */
error_reporting(0);
include_once(dirname(__FILE__) . "/../include/config.php");
include_once(dirname(__FILE__) . "/../lib/snmp.php");
include_once(dirname(__FILE__) . "/../lib/ping.php");
if (!isset($called_by_script_server)) {
array_shift($_SERVER["argv"]);
print call_user_func_array("ss_fping", $_SERVER["argv"]);
}
//End header.
function ss_fping($hostname, $ping_sweeps=6, $ping_type="ICMP", $port=80) {
/* record start time */
list($micro,$seconds) = split(" ", microtime());
$ss_fping_start = $seconds + $micro;
$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");
$ping_timeout = read_config_option("ping_timeout");
switch ($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) {
$result = $ping->ping(AVAIL_PING,
$method,
read_config_option("ping_timeout"),
1);
if (!$result) {
$failed_results++;
}else{
$time[$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;
}
$i++;
/* get current time */
list($micro,$seconds) = split(" ", microtime());
$ss_fping_current = $seconds + $micro;
/* if called from script server, end one second before a timeout occurs */
if ((isset($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 "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 / count($time));
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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