@unlink("{$g['tmp_path']}/{$uniqid}_tmp");
                unset($a_passthrumacs[$idx]);
                write_config();
                echo gettext("The entry was successfully deleted") . "\n";
            } else {
                echo gettext("No entry exists for this mac address:") . " " . $_POST['delmac'] . "\n";
            }
        }
        exit;
    }
}
if ($_GET['act'] == "del") {
    $a_passthrumacs =& $a_cp[$cpzone]['passthrumac'];
    if ($a_passthrumacs[$_GET['id']]) {
        $cpzoneid = $a_cp[$cpzone]['zoneid'];
        $rules = captiveportal_passthrumac_delete_entry($a_passthrumacs[$_GET['id']]);
        $uniqid = uniqid("{$cpzone}_mac");
        file_put_contents("{$g['tmp_path']}/{$uniqid}_tmp", $rules);
        mwexec("/sbin/ipfw -x {$cpzoneid} -q {$g['tmp_path']}/{$uniqid}_tmp");
        @unlink("{$g['tmp_path']}/{$uniqid}_tmp");
        unset($a_passthrumacs[$_GET['id']]);
        write_config();
        header("Location: services_captiveportal_mac.php?zone={$cpzone}");
        exit;
    }
}
include "head.inc";
if ($savemsg) {
    print_info_box($savemsg, 'success');
}
if (is_subsystem_dirty('passthrumac')) {
        if ($_POST['username']) {
            $mac['username'] = $_POST['username'];
        }
        $mac['descr'] = $_POST['descr'];
        if (isset($id) && $a_passthrumacs[$id]) {
            $oldmac = $a_passthrumacs[$id];
            $a_passthrumacs[$id] = $mac;
        } else {
            $oldmac = $mac;
            $a_passthrumacs[] = $mac;
        }
        passthrumacs_sort();
        write_config();
        if (isset($config['captiveportal'][$cpzone]['enable'])) {
            $cpzoneid = $config['captiveportal'][$cpzone]['zoneid'];
            $rules = captiveportal_passthrumac_delete_entry($oldmac);
            $rules .= captiveportal_passthrumac_configure_entry($mac);
            $uniqid = uniqid("{$cpzone}_macedit");
            file_put_contents("{$g['tmp_path']}/{$uniqid}_tmp", $rules);
            mwexec("/sbin/ipfw -x {$cpzoneid} -q {$g['tmp_path']}/{$uniqid}_tmp");
            @unlink("{$g['tmp_path']}/{$uniqid}_tmp");
            unset($cpzoneid);
        }
        header("Location: services_captiveportal_mac.php?zone={$cpzone}");
        exit;
    }
}
// Get the MAC address
$ip = $_SERVER['REMOTE_ADDR'];
$mymac = `/usr/sbin/arp -an | grep '('{$ip}')' | head -n 1 | cut -d" " -f4`;
$mymac = str_replace("\n", "", $mymac);