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# Sample dhcpcd hook script for ntp
# Like our resolv.conf hook script, we store a database of ntp.conf files
# and merge into /etc/ntp.conf
# You can set the env var NTP_CONF to another file like this
# dhcpcd -e NTP_CONF=/usr/pkg/etc/ntpd.conf
# or by adding this to /etc/dhcpcd.enter-hook
# NTP_CONF=/usr/pkg/etc/ntpd.conf
# to use openntpd from pkgsrc instead of the system provided ntp.
# Detect OpenRC or BSD rc
# Distributions may want to just have their command here instead of this
if type rc-service >/dev/null 2>&1 && rc-service --exists ntpd; then
ntpd_restart_cmd="rc-service ntpd -- --ifstarted --quiet restart"
elif [ -x /etc/rc.d/ntpd ]; then
ntpd_restart_cmd="/etc/rc.d/ntpd status && /etc/rc.d/ntpd restart"
elif [ -x /usr/local/etc/rc.d/ntpd ]; then
ntpd_restart_cmd="/usr/local/etc/rc.d/ntpd status && /usr/local/etc/rc.d/ntpd restart"
fi
ntp_conf_dir="${state_dir}/ntp.conf"
ntp_conf=${NTP_CONF:-/etc/ntp.conf}
build_ntp_conf()
{
local cf="${ntp_conf}.${interface}"
local interfaces= header= srvs= servers= x=
# Build a list of interfaces
interfaces=$(list_interfaces "${ntp_conf_dir}")
if [ -n "${interfaces}" ]; then
# Build the header
for x in ${interfaces}; do
header="${header}${header:+, }${x}"
done
# Build a server list
srvs=$(cd "${ntp_conf_dir}";
key_get_value "server " ${interfaces})
if [ -n "${srvs}" ]; then
for x in $(uniqify ${srvs}); do
servers="${servers}server ${x}\n"
done
fi
fi
# Merge our config into ntp.conf
[ -e "${cf}" ] && rm -f "${cf}"
remove_markers "${signature_base}" "${signature_base_end}" \
/etc/ntp.conf > "${cf}"
if [ -n "${servers}" ]; then
echo "${signature_base}${header:+ ${from} }${header}" >> "${cf}"
printf "${search}${servers}" >> "${cf}"
echo "${signature_base_end}${header:+ ${from} }${header}" >> "${cf}"
fi
# If we changed anything, restart ntpd
if change_file "${ntp_conf}" "${cf}"; then
[ -n "${ntpd_restart_cmd}" ] && eval ${ntpd_restart_cmd}
fi
}
add_ntp_conf()
{
local cf="${ntp_conf_dir}/${interface}" x=
[ -e "${cf}" ] && rm "${cf}"
[ -d "${ntp_conf_dir}" ] || mkdir -p "${ntp_conf_dir}"
if [ -n "${new_ntp_servers}" ]; then
for x in ${new_ntp_servers}; do
echo "server ${x}" >> "${cf}"
done
fi
build_ntp_conf
}
remove_ntp_conf()
{
if [ -e "${ntp_conf_dir}/${interface}" ]; then
rm "${ntp_conf_dir}/${interface}"
fi
build_ntp_conf
}
case "${reason}" in
BOUND|INFORM|REBIND|REBOOT|RENEW|TIMEOUT) add_ntp_conf add;;
PREINIT|EXPIRE|FAIL|IPV4LL|RELEASE|STOP) remove_ntp_conf del;;
esac
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