private function changeSNMPSettings()
{
if (function_exists("snmp_get_quick_print")) {
$this->snmpSavedQuickPrint = snmp_get_quick_print();
snmp_set_quick_print(1);
}
if (function_exists("snmp_get_valueretrieval")) {
$this->snmpSavedValueRetrieval = snmp_get_valueretrieval();
}
if (function_exists('snmp_set_oid_output_format')) {
snmp_set_oid_output_format(SNMP_OID_OUTPUT_NUMERIC);
}
if (function_exists('snmp_set_valueretrieval')) {
snmp_set_valueretrieval(SNMP_VALUE_PLAIN);
}
}
function ReadData($targetstring, &$map, &$item)
{
$data[IN] = NULL;
$data[OUT] = NULL;
$data_time = 0;
$timeout = 1000000;
$retries = 2;
$abort_count = 0;
$in_result = NULL;
$out_result = NULL;
if ($map->get_hint("snmp_timeout") != '') {
$timeout = intval($map->get_hint("snmp_timeout"));
debug("Timeout changed to " . $timeout . " microseconds.\n");
}
if ($map->get_hint("snmp_abort_count") != '') {
$abort_count = intval($map->get_hint("snmp_abort_count"));
debug("Will abort after {$abort_count} failures for a given host.\n");
}
if ($map->get_hint("snmp_retries") != '') {
$retries = intval($map->get_hint("snmp_retries"));
debug("Number of retries changed to " . $retries . ".\n");
}
if (preg_match("/^snmp:([^:]+):([^:]+):([^:]+):([^:]+)\$/", $targetstring, $matches)) {
$community = $matches[1];
$host = $matches[2];
$in_oid = $matches[3];
$out_oid = $matches[4];
if ($abort_count == 0 || $abort_count > 0 && (!isset($this->down_cache[$host]) || intval($this->down_cache[$host]) < $abort_count)) {
if (function_exists("snmp_get_quick_print")) {
$was = snmp_get_quick_print();
snmp_set_quick_print(1);
}
if (function_exists("snmp_get_valueretrieval")) {
$was2 = snmp_get_valueretrieval();
}
if (function_exists('snmp_set_oid_output_format')) {
snmp_set_oid_output_format(SNMP_OID_OUTPUT_NUMERIC);
}
if (function_exists('snmp_set_valueretrieval')) {
snmp_set_valueretrieval(SNMP_VALUE_PLAIN);
}
if ($in_oid != '-') {
$in_result = snmpget($host, $community, $in_oid, $timeout, $retries);
if ($in_result) {
$data[IN] = floatval($in_result);
$item->add_hint("snmp_in_raw", $in_result);
} else {
$this->down_cache[$host]++;
}
}
if ($out_oid != '-') {
$out_result = snmpget($host, $community, $out_oid, $timeout, $retries);
if ($out_result) {
// use floatval() here to force the output to be *some* kind of number
// just in case the stupid formatting stuff doesn't stop net-snmp returning 'down' instead of 2
$data[OUT] = floatval($out_result);
$item->add_hint("snmp_out_raw", $out_result);
} else {
$this->down_cache[$host]++;
}
}
debug("SNMP ReadData: Got {$in_result} and {$out_result}\n");
$data_time = time();
if (function_exists("snmp_set_quick_print")) {
snmp_set_quick_print($was);
}
} else {
warn("SNMP for {$host} has reached {$abort_count} failures. Skipping. [WMSNMP01]");
}
}
debug("SNMP ReadData: Returning (" . ($data[IN] === NULL ? 'NULL' : $data[IN]) . "," . ($data[OUT] === NULL ? 'NULL' : $data[OUT]) . ",{$data_time})\n");
return array($data[IN], $data[OUT], $data_time);
}
<?php
require_once dirname(__FILE__) . '/snmp_include.inc';
echo "Checking error handling\n";
var_dump(snmp_get_valueretrieval('noarg'));
var_dump(snmp_set_valueretrieval());
var_dump(snmp_set_valueretrieval('noarg'));
var_dump(snmp_set_valueretrieval(67));
echo "Checking working\n";
var_dump(snmp_get_valueretrieval());
snmp_set_valueretrieval(SNMP_VALUE_LIBRARY);
var_dump(snmp_get_valueretrieval() === SNMP_VALUE_LIBRARY);
snmp_set_valueretrieval(SNMP_VALUE_PLAIN);
var_dump(snmp_get_valueretrieval() === SNMP_VALUE_PLAIN);
snmp_set_valueretrieval(SNMP_VALUE_OBJECT);
var_dump(snmp_get_valueretrieval() === SNMP_VALUE_OBJECT);
snmp_set_valueretrieval(SNMP_VALUE_PLAIN | SNMP_VALUE_OBJECT);
var_dump(snmp_get_valueretrieval() === (SNMP_VALUE_PLAIN | SNMP_VALUE_OBJECT));
snmp_set_valueretrieval(SNMP_VALUE_LIBRARY | SNMP_VALUE_OBJECT);
var_dump(snmp_get_valueretrieval() === (SNMP_VALUE_LIBRARY | SNMP_VALUE_OBJECT));
