freebsd-dev/etc/rc.d/named

#!/bin/sh
#
# $NetBSD: named,v 1.10 2002/03/22 04:33:59 thorpej Exp $
# $FreeBSD$
#

# PROVIDE: named
# REQUIRE: SERVERS
# BEFORE:  DAEMON
# KEYWORD: FreeBSD NetBSD

. /etc/rc.subr

name="named"
rcvar=`set_rcvar`
command="/usr/sbin/${name}"
start_precmd="named_precmd"
required_dirs="$named_chrootdir"	# if it is set, it must exist
extra_commands="reload"

case ${OSTYPE} in
FreeBSD)
	nuser=bind
	ngroup=bind
	;;
NetBSD)
	nuser=named
	ngroup=named
	;;
esac

# 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 ${named_chrootdir}
# exists and named isn't running at this point (unless forcestart
# is used).
#
chroot_autoupdate()
{
	# If the named-xfer in the system is newer than the one in the
	# chroot directory or if it (in the chrootdir) doesn't exist
	# copy it over
	#
	if [ ! -x "${named_chrootdir}/usr/libexec/named-xfer" -o \
	    "${named_chrootdir}/usr/libexec/named-xfer" -ot \
	    /usr/libexec/named-xfer ]; then
		rm -f "${named_chrootdir}/usr/libexec/named-xfer"
		cp -p /usr/libexec/named-xfer "${named_chrootdir}/usr/libexec"
	fi

	# Copy /dev/null over, if neccessary. Preserve everything (perms,
	# ownership, mod times).
	#
	if [ ! -c "${named_chrootdir}/dev/null" ]; then
	rm -f "${named_chrootdir}/dev/null"
		( cd /dev ; /bin/pax -rw -pe null "${named_chrootdir}/dev" )
	fi

	# Copy local timezone information if it's 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 and ndc socket files
#
make_symlinks()
{
	ln -fs "${named_chrootdir}${named_pidfile}" ${named_pidfile}
	ln -fs "${named_chrootdir}/var/run/ndc" /var/run/ndc

}

named_precmd()
{
	case ${OSTYPE} in
	FreeBSD)
		! checkyesno named_rcng && return 0
		# Is the user using a sandbox?
		if [ -z "$named_chrootdir" ]; then
			rc_flags="-u $nuser -g $ngroup $rc_flags"
			return 0
		fi

		# Do the following checks only if the user wants them done
		checkyesno named_chroot_autoupdate && chroot_autoupdate
		;;
	NetBSD)
		chroot_autoupdate
		;;
	esac

	case ${OSTYPE} in
	FreeBSD)
		# Make the symlinks only if the user wants them done.
		checkyesno named_symlink_enable && make_symlinks
		;;
	NetBSD)
		make_symlinks
		;;
	esac

	#       Change run_rc_commands()'s internal copy of $named_flags
	#
	case ${OSTYPE} in
	FreeBSD)
		! checkyesno named_rcng && return
		;;
	esac
	rc_flags="-u $nuser -g $ngroup -t ${named_chrootdir} $rc_flags"
}

load_rc_config $name
# The following variable requires that rc.conf be loaded first
#
required_dirs="$named_chrootdir"	# if it is set, it must exist
pidfile="${named_pidfile:-/var/run/${name}/pid}"

run_rc_command "$1"