NetBSD/etc/rc.d/ntpd

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#!/bin/sh
#
# $NetBSD: ntpd,v 1.16 2015/11/23 19:56:47 christos Exp $
#
# PROVIDE: ntpd
# REQUIRE: DAEMON
# BEFORE: LOGIN
# KEYWORD: chrootdir
$_rc_subr_loaded . /etc/rc.subr
name="ntpd"
rcvar=$name
command="/usr/sbin/${name}"
pidfile="/var/run/${name}.pid"
start_precmd="ntpd_precmd"
required_files="/etc/ntp.conf"
ntpd_precmd()
{
rc_flags="-p ${pidfile} $rc_flags"
if [ -z "$ntpd_chrootdir" ]; then
return 0;
fi
# 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 ${ntpd_chrootdir}
# exists and ntpd isn't running at this point (unless forcestart
# is used).
#
# Before enabling ntpd_chrootdir, ensure that:
# - The kernel has "pseudo-device clockctl" compiled in
# - /dev/clockctl is present
#
if (: </dev/clockctl) 2>/dev/null; then
: exists and works
else
logger -s -p daemon.warning -t ntpd \
"WARNING: not chrooting -- no working /dev/clockctl device"
return 0
fi
if [ ! -c "${ntpd_chrootdir}/dev/clockctl" ]; then
rm -f "${ntpd_chrootdir}/dev/clockctl"
( cd /dev ; /bin/pax -rw -pe clockctl "${ntpd_chrootdir}/dev" )
fi
ln -fs "${ntpd_chrootdir}/var/db/ntp.drift" /var/db/ntp.drift
if [ ! -d "${ntpd_chrootdir}/etc" ]; then
mkdir "${ntpd_chrootdir}/etc"
fi
for f in resolv.conf; do
if ! cmp -s "/etc/$f" "${ntpd_chrootdir}/etc/$f"; then
cp -p "/etc/$f" "${ntpd_chrootdir}/etc/$f"
fi
done
if [ ! -f "${ntpd_chrootdir}/etc/services" ]; then
getent services ntp/udp ntp/tcp \
> "${ntpd_chrootdir}/etc/services"
fi
if [ ! -d "${ntpd_chrootdir}/var/db" ]; then
mkdir -p "${ntpd_chrootdir}/var/db"
fi
if [ ! -f "${ntpd_chrootdir}/var/db/services.cdb" ]; then
services_mkdb -o "${ntpd_chrootdir}/var/db/services.cdb" \
"${ntpd_chrootdir}/etc/services"
fi
# Change run_rc_commands()'s internal copy of $ntpd_flags
#
rc_flags="-u ntpd:ntpd -i ${ntpd_chrootdir} $rc_flags"
}
load_rc_config $name
run_rc_command "$1"