#!/bin/sh

start()
{
	printf 'Mounting temporary file systems... '

	if ! mount | grep -Fq ' /run '; then
		mount -t tmpfs -o nodev,noexec,nosuid,mode=0755 tmpfs /run
	fi

	[ -d /run/lock ] || mkdir -m 1777 /run/lock
	[ -d /run/shm ] || mkdir -m 1777 /run/shm

	if ! mount | grep -Fq ' /tmp '; then
		mount -t tmpfs -o nodev,nosuid,mode=1777 tmpfs /tmp
	fi

	printf 'done.\n'
}

stop()
{
	printf 'Unmounting temporary file systems... '

	if mount | grep -Fq ' /run '; then
		umount /run
	fi

	if mount | grep -Fq ' /tmp '; then
		umount /run
	fi

	printf 'done.\n'
}

case "${1}" in
	start)
		start
		;;
	stop)
		stop
		;;
	*)
		printf 'Usage: %s {start|stop}\n' "${0}" >&2
		exit 1
		;;
esac