#!/bin/sh

CMD=${0##*/}

# busybox doesn't provide shutdown command
[ "$CMD" == shutdown ] && CMD=poweroff

unset ARGS HELP
while [ -n "$1" ];do
        case "$1" in
            # Original args
            -n|-f|-w)
                ARGS="$ARGS $1"
                ;;
            -d)
                ARGS="$ARGS $1 $2"
                shift
                ;;
            # Additional args
            --halt)
                CMD=halt
                ;;
            -p|--poweroff)
                CMD=poweroff
                ;;
            --reboot)
                CMD=reboot
                ;;
            --no-wall)
                ARGS="$ARGS -f"
                ;;
            --help)
                HELP=1
                ARGS="$ARGS $1"
                ;;
            *)
                ARGS="$ARGS $1"
                ;;
        esac
        shift
done

if [ -n "$HELP" ]; then
    busybox $CMD --help
else
    busybox $CMD $ARGS && exit 0
fi

# Print add-on usages
cat << EOF
	--help	Show this help
	--halt	Halt the machine
	-p --poweroff	Switch off the machine
	--reboot	Reboot the machine
	--no-wall	Don't send wall message before halt/power-off/reboot
EOF