$pconfig['relayd'] = isset($config['syslog']['relayd']);
    $pconfig['hostapd'] = isset($config['syslog']['hostapd']);
    $pconfig['logall'] = isset($config['syslog']['logall']);
    $pconfig['system'] = isset($config['syslog']['system']);
    $pconfig['enable'] = isset($config['syslog']['enable']);
    $pconfig['logdefaultblock'] = empty($config['syslog']['nologdefaultblock']);
    $pconfig['logdefaultpass'] = empty($config['syslog']['nologdefaultpass']);
    $pconfig['logbogons'] = empty($config['syslog']['nologbogons']);
    $pconfig['logprivatenets'] = empty($config['syslog']['nologprivatenets']);
    $pconfig['loglighttpd'] = empty($config['syslog']['nologlighttpd']);
    $pconfig['filterdescriptions'] = $config['syslog']['filterdescriptions'];
    $pconfig['disablelocallogging'] = isset($config['syslog']['disablelocallogging']);
    $pconfig['logfilesize'] = !empty($config['syslog']['logfilesize']) ? $config['syslog']['logfilesize'] : null;
} elseif ($_SERVER['REQUEST_METHOD'] === 'POST') {
    if (!empty($_POST['action']) && $_POST['action'] == "resetlogs") {
        clear_all_log_files();
        $savemsg = gettext("The log files have been reset.");
    } elseif (!empty($_POST['action']) && $_POST['action'] == "ResetRRD") {
        $savemsg = gettext('RRD data has been cleared.');
        mwexec('/bin/rm /var/db/rrd/*');
        enable_rrd_graphing();
        setup_gateways_monitor();
    } else {
        $input_errors = array();
        $pconfig = $_POST;
        /* input validation */
        if (!empty($pconfig['enable']) && !is_valid_syslog_server($pconfig['remoteserver'])) {
            $input_errors[] = gettext("A valid IP address/hostname or IP/hostname:port must be specified for remote syslog server #1.");
        }
        if (!empty($pconfig['enable']) && !empty($pconfig['remoteserver2']) && !is_valid_syslog_server($pconfig['remoteserver2'])) {
            $input_errors[] = gettext("A valid IP address/hostname or IP/hostname:port must be specified for remote syslog server #2.");
$pconfig['logbogons'] = !isset($config['syslog']['nologbogons']);
$pconfig['logprivatenets'] = !isset($config['syslog']['nologprivatenets']);
$pconfig['lognginx'] = !isset($config['syslog']['nolognginx']);
$pconfig['rawfilter'] = isset($config['syslog']['rawfilter']);
$pconfig['filterdescriptions'] = $config['syslog']['filterdescriptions'];
$pconfig['disablelocallogging'] = isset($config['syslog']['disablelocallogging']);
$pconfig['logfilesize'] = $config['syslog']['logfilesize'];
if (!$pconfig['nentries']) {
    $pconfig['nentries'] = 50;
}
function is_valid_syslog_server($target)
{
    return is_ipaddr($target) || is_ipaddrwithport($target) || is_hostname($target) || is_hostnamewithport($target);
}
if ($_POST['resetlogs'] == gettext("Reset Log Files")) {
    clear_all_log_files(true);
    $savemsg .= gettext("The log files have been reset.");
} elseif ($_POST) {
    unset($input_errors);
    $pconfig = $_POST;
    /* input validation */
    if ($_POST['enable'] && !is_valid_syslog_server($_POST['remoteserver'])) {
        $input_errors[] = gettext("A valid IP address/hostname or IP/hostname:port must be specified for remote syslog server #1.");
    }
    if ($_POST['enable'] && $_POST['remoteserver2'] && !is_valid_syslog_server($_POST['remoteserver2'])) {
        $input_errors[] = gettext("A valid IP address/hostname or IP/hostname:port must be specified for remote syslog server #2.");
    }
    if ($_POST['enable'] && $_POST['remoteserver3'] && !is_valid_syslog_server($_POST['remoteserver3'])) {
        $input_errors[] = gettext("A valid IP address/hostname or IP/hostname:port must be specified for remote syslog server #3.");
    }
    if ($_POST['nentries'] < 5 || $_POST['nentries'] > 2000) {