#!/bin/bash

default_resume_kernel()
{
    case $(uname -m) in
	i?86|x86_64|athlon)
	    ;;
	*) # this is only valid for x86 and x86_64
	    return 1
    esac

    [ -x /sbin/grubby -a -x /sbin/grub ] || return 1
    [ -e /boot/vmlinuz-$(uname -r) ] || return 1

    out=$(/sbin/grubby --info /boot/vmlinuz-$(uname -r) |grep index)
    [ -n "${out}" ] || return 1
    current=${out#index=}
    echo "savedefault --default=${current} --once" | /sbin/grub --batch --no-floppy --device-map=/boot/grub/device.map --no-curses >/dev/null

    return 0
}

RETVAL=0
case "$1" in
	hibernate)
		default_resume_kernel
		RETVAL=$?
		;;
	*)
		;;
esac

exit $RETVAL