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#!/sbin/runscript
# Copyright 2007 Roy Marples
# All rights reserved

# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.

command=/usr/sbin/named
command_args=${named_args}
pidfile=/var/run/named/pid
name="Domain Name server"
extra_started_commands="reload"

namedb=/etc/namedb
named_uid=${named_uid:-bind}

depend() {
	provide dns
	need localmount
	after bootmisc
}

start_pre() {
	if [ -n "${named_chroot}" ]; then
		# Create (or update) the chroot directory structure
		if [ -r /etc/mtree/BIND.chroot.dist ]; then
			mtree -deU -f /etc/mtree/BIND.chroot.dist -p "${named_chroot}"
		else
			ewarn "/etc/mtree/BIND.chroot.dist missing,"
			ewarn "chroot directory structure not updated"
		fi

		if [ ! -d "${named_chroot}"/. ]; then
			eerror "chroot directory ${named_chroot} missing"
			exit 1
		fi

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

		case "${RC_UNAME}" in
			*BSD|DragonFly)
				# Mount a devfs in the chroot directory if needed
				umount "${named_chroot}"/dev 2>/dev/null
				mount -t devfs dev "${named_chroot}"/dev
				devfs -m "${named_chroot}"/dev ruleset devfsrules_hide_all
				devfs -m "${named_chroot}"/dev rule apply path null unhide
				devfs -m "${named_chroot}"/dev rule apply path random unhide
				;;
		esac

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

		command_args="${command_args} -t ${named_chroot}"

		ln -fs "${named_chroot}${pidfile}" "${pidfile}"
	fi

	if [ ! -s "${named_chroot}${namedb}/rndc.conf" ]; then
		local confgen="${command%/named}/rndc-confgen -a -b256 -u ${named_uid} \
	    	-c ${named_chrootdir}/etc/namedb/rndc.key"
		if [ -s "${named_chroot}${namedb}/rndc.key" ]; then
			local getuser="stat -f%Su"
			[ "${RC_UNAME}" = "Linux" ] && getuser="stat -c%U"
			case $(${getuser} "${named_chroot}${namedb}"/rndc.key) in
				root|"${named_uid}");;
				*) ${confgen};;
			esac
		else
			${confgen}
		fi
	fi
}

reload() {
	rndc reload
}

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

# vim: set ts=4 :