#!/bin/sh
#
# start/stop portmap daemon.

# Don't modify these lines, change or create /etc/default/portmap
portmap_chroot_dir=/srv/portmap/chroot
portmap_chroot_img=/srv/portmap/chroot.dmg
portmap_use_loopback=no

test -x /sbin/portmap || exit 0

test -f /etc/default/portmap && . /etc/default/portmap

OPTIONS="-t $portmap_chroot_dir"

function setup_chroot
{
	oldumask=$(umask)
	umask 022
	
	if [ ! -d "$portmap_chroot_dir" ]; then
		mkdir -p "$portmap_chroot_dir"
		chown root:root "$portmap_chroot_dir"
		chmod 0755 "$portmap_chroot_dir"
	fi

	if [ x$portmap_use_loopback = xyes ]; then
		if [ ! -f "$portmap_chroot_img" ]; then
			dd if=/dev/zero of="$portmap_chroot_img" bs=1M count=1 \
				> /dev/null 2>&1
		fi
		chmod 0600 "$portmap_chroot_img"
		chown root:root "$portmap_chroot_img"

		if ! file "$portmap_chroot_img" | grep -q 'ext2 filesystem'; then
			mkfs.ext2 -F -m 0 -q "$portmap_chroot_img" > /dev/null 2>&1
		fi

		if ! mount | grep -q "$portmap_chroot_img"; then
			fsck.ext2 -p "$portmap_chroot_img" > /dev/null
			mount -o loop,noexec,nosuid "$portmap_chroot_img" \
				"$portmap_chroot_dir"
		fi
	fi
	if [ x$portmap_use_loopback = xyes ]; then
		# Catch the case where the chroot has already been mounted ro
		mount -o remount,rw "$portmap_chroot_dir"
	fi
	mkdir -p "$portmap_chroot_dir"
	cp /etc/localtime "$portmap_chroot_dir"
	if [ x$portmap_use_loopback = xyes ]; then
		mount -o remount,ro "$portmap_chroot_dir"
	fi
	umask $oldumask
}

case "$1" in
    start)
	echo -n "Starting portmap daemon:"
	echo -n " portmap"
		setup_chroot
        start-stop-daemon --start --quiet --exec /sbin/portmap -- $OPTIONS
	echo "."

	if [ -f /var/run/portmap.upgrade-state ]; then
          echo -n "Restoring old RPC service information..."
          sleep 1 # needs a short pause or pmap_set won't work. :(
	  pmap_set </var/run/portmap.upgrade-state
	  rm -f /var/run/portmap.upgrade-state
          echo "done."
        fi

	;;
    stop)
        echo -n "Stopping portmap daemon:"
        echo -n " portmap" ; start-stop-daemon --stop --quiet --oknodo --exec /sbin/portmap
        echo "."
	;;
    reload)
	;;
    force-reload)
        $0 restart
	;;
    restart)
	pmap_dump >/var/run/portmap.state
        $0 stop
        $0 start
	if [ ! -f /var/run/portmap.upgrade-state ]; then
          sleep 1
	  pmap_set </var/run/portmap.state
	fi
	rm -f /var/run/portmap.state
	;;
    *)
	echo "Usage: /etc/init.d/portmap {start|stop|reload|restart}"
	exit 1
	;;
esac

exit 0