#!/usr/bin/perl

require "sys/ioctl.ph";

open( FH, "/dev/console" ) ||
                die "cannot open console";

$KDSETLED = 0x4B32;
$KDGETLED = 0x4B31;
$LED_NUM  = 0x02;
$LED_CAP  = 0x04;
$LED_SCR  = 0x01;

ioctl(FH, $KDGETLED, $orig);
@ary = unpack("ccccs",$orig);

foreach $state ( $LED_NUM, $LED_CAP, $LED_SCR, $ary[0] ) {
        $i = 0;
        $i |= $state;
        ioctl(FH, $KDSETLED, $i);
        sleep( 2 );
}