#!/bin/sh
#
# Suspend the system using either ACPI or APM.
# For APM, "apm -z" will be issued.
# For ACPI, the configured suspend state will be looked up, checked to see
# if it is supported, and "acpiconf -s <state>" will be issued.
#
# Mark Santcroos <marks@ripe.net>
#
# $FreeBSD: stable/11/usr.sbin/zzz/zzz.sh 118020 2003-07-25 17:11:15Z njl $

setvar PATH = "/sbin:/usr/sbin:/usr/bin:/bin"

setvar ACPI_SUSPEND_STATE = 'hw.acpi.suspend_state'
setvar ACPI_SUPPORTED_STATES = 'hw.acpi.supported_sleep_state'
setvar APM_SUSPEND_DELAY = 'machdep.apm_suspend_delay'

# Check for ACPI support
if sysctl $ACPI_SUSPEND_STATE >/dev/null 2>&1 {
	# Get configured suspend state
	setvar SUSPEND_STATE = $(sysctl -n $ACPI_SUSPEND_STATE)

	# Get list of supported suspend states
	setvar SUPPORTED_STATES = $(sysctl -n $ACPI_SUPPORTED_STATES)

	# Check if the configured suspend state is supported by the system
	if echo $SUPPORTED_STATES | grep $SUSPEND_STATE >/dev/null {
		# execute ACPI style suspend command
		exec acpiconf -s $SUSPEND_STATE
	} else {
		echo -n "Requested suspend state $SUSPEND_STATE "
		echo -n "is not supported.  "
		echo    "Supported states: $SUPPORTED_STATES"
	}
# Check for APM support
} elif sysctl $APM_SUSPEND_DELAY >/dev/null 2>&1 {
	# Execute APM style suspend command
	exec apm -z
} else {
	echo "Error: no ACPI or APM suspend support found."
}

exit 1