#!/bin/sh
#
# $NetBSD: named,v 1.10 2002/03/22 04:33:59 thorpej Exp $
# $FreeBSD: src/etc/rc.d/named,v 1.22 2005/05/23 12:25:33 pjd Exp $
#

# PROVIDE: named
# REQUIRE: SERVERS 
# BEFORE:  DAEMON
# KEYWORD: shutdown

. /etc/rc.subr

name="named"
rcvar=`set_rcvar`

command="/usr/sbin/named"
extra_commands="reload"

start_precmd="named_precmd"
start_postcmd="make_symlinks"
stop_postcmd="named_poststop"

load_rc_config $name

named_diskless="${named_diskless:-NO}"
#directory where config exists
named_diskless_dir="${named_diskless_dir:-/cfg/named_diskless}"

# if it is set, it must exist
required_dirs="$named_chrootdir $named_diskless_dir"
pidfile="${named_pidfile:-/var/run/${name}/pid}"



# If running in a chroot cage, ensure that the appropriate files
# exist inside the cage, as well as helper symlinks into the cage
# from outside.
#
# As this is called after the is_running and required_dir checks
# are made in run_rc_command(), we can safely assume ${named_chrootdir}
# exists and named isn't running at this point (unless forcestart
# is used).
#
chroot_autoupdate()
{
# Create (or update) the chroot directory structure
#
if [ -f /etc/mtree/BIND.chroot.dist ]; then
        mtree -deU -f /etc/mtree/BIND.chroot.dist \
            -p ${named_chrootdir}
else
        warn "/etc/mtree/BIND.chroot.dist missing,"
        warn "chroot directory structure not updated"
fi

# Copy config files
#
checkyesno named_diskless
if [ $? -eq 0 ]; then
        if [ -d ${named_diskless_dir} ]; then
                cp -vpR ${named_diskless_dir}/* ${named_chrootdir}/etc/namedb
		( cd ${named_chrootdir}/etc/namedb 
			sh ./make-localhost
		) || exit 1
        else
               warn "${named_diskless_dir} doesn't exist"
        fi
fi

# Create /etc/namedb symlink
#
if [ ! -L /etc/namedb ]; then
	if [ -d /etc/namedb ]; then
		warn "named chroot: /etc/namedb is a directory!"
	elif [ -e /etc/namedb ]; then
		warn "named chroot: /etc/namedb exists!"
	else
		ln -s ${named_chrootdir}/etc/namedb /etc/namedb
	fi
else
	# Make sure it points to the right place.
	ln -shf ${named_chrootdir}/etc/namedb /etc/namedb

fi

# Mount a devfs in the chroot directory if needed
#
umount ${named_chrootdir}/dev 2>/dev/null
devfs_domount ${named_chrootdir}/dev devfsrules_hide_all
devfs -m ${named_chrootdir}/dev rule apply path null unhide
devfs -m ${named_chrootdir}/dev rule apply path random unhide

# Copy local timezone information if it is not up to date.
#
if [ -f /etc/localtime ]; then
	cmp -s /etc/localtime "${named_chrootdir}/etc/localtime" || \
	cp -p /etc/localtime "${named_chrootdir}/etc/localtime"
fi
}

# Make symlinks to the correct pid file
#
make_symlinks()
{
	checkyesno named_symlink_enable &&
	ln -fs "${named_chrootdir}${pidfile}" ${pidfile}
}

named_poststop()
{
	if [ -n "${named_chrootdir}"  -a -c ${named_chrootdir}/dev/null ]; then
		umount ${named_chrootdir}/dev 2>/dev/null || true
	fi
}

named_precmd()
{
	local confgen_chroot

	# Is the user using a sandbox?
	#
	if [ -n "$named_chrootdir" ]; then
		rc_flags="$rc_flags -t $named_chrootdir"
		confgen_chroot="-t${named_chrootdir} -u bind"
		checkyesno named_chroot_autoupdate && chroot_autoupdate
	else
		named_symlink_enable=NO
	fi

	# Create an rndc.key file for the user if none exists
	#
	if [ ! -f "${named_chrootdir}/etc/namedb/rndc.key" -a \
	    ! -f "${named_chrootdir}/etc/namedb/rndc.conf" ]; then
		rndc-confgen -a -b256 ${confgen_chroot}
	fi
}


run_rc_command "$1"