mirror of
https://git.rtems.org/rtems-libbsd/
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f2ed769880
Import DHCPCD(8) from: http://roy.marples.name/projects/dhcpcd/ The upstream sources can be obtained via: fossil clone http://roy.marples.name/projects/dhcpcd The imported version is 2014-01-29 19:46:44 [6b209507bb].
110 lines
2.6 KiB
Plaintext
110 lines
2.6 KiB
Plaintext
# Sample dhcpcd hook script for ntp
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# Like our resolv.conf hook script, we store a database of ntp.conf files
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# and merge into /etc/ntp.conf
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# You can set the env var NTP_CONF to another file like this
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# dhcpcd -e NTP_CONF=/usr/pkg/etc/ntpd.conf
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# or by adding this to /etc/dhcpcd.enter-hook
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# NTP_CONF=/usr/pkg/etc/ntpd.conf
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# to use openntpd from pkgsrc instead of the system provided ntp.
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if type invoke-rc.d >/dev/null 2>&1; then
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# Debian has a seperate file for DHCP config to avoid stamping on
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# the master.
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[ -e /var/lib/ntp ] || mkdir /var/lib/ntp
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: ${ntp_service:=ntp}
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: ${NTP_DHCP_CONF:=/var/lib/ntp/ntp.conf.dhcp}
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fi
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: ${ntp_service:=ntpd}
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: ${ntp_restart_cmd:=service_condcommand $ntp_service restart}
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ntp_conf_dir="$state_dir/ntp.conf"
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ntp_conf=${NTP_CONF:-/etc/ntp.conf}
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NL="
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"
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build_ntp_conf()
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{
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local cf="$state_dir/ntp.conf.$ifname"
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local interfaces= header= srvs= servers= x=
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# Build a list of interfaces
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interfaces=$(list_interfaces "$ntp_conf_dir")
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if [ -n "$interfaces" ]; then
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# Build the header
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for x in ${interfaces}; do
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header="$header${header:+, }$x"
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done
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# Build a server list
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srvs=$(cd "$ntp_conf_dir";
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key_get_value "server " $interfaces)
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if [ -n "$srvs" ]; then
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for x in $(uniqify $srvs); do
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servers="${servers}server $x$NL"
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done
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fi
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fi
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# Merge our config into ntp.conf
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[ -e "$cf" ] && rm -f "$cf"
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[ -d "$ntp_conf_dir" ] || mkdir -p "$ntp_conf_dir"
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if [ -n "$NTP_DHCP_CONF" ]; then
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[ -e "$ntp_conf" ] && cp "$ntp_conf" "$cf"
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ntp_conf="$NTP_DHCP_CONF"
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elif [ -e "$ntp_conf" ]; then
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remove_markers "$signature_base" "$signature_base_end" \
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"$ntp_conf" > "$cf"
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fi
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if [ -n "$servers" ]; then
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echo "$signature_base${header:+ $from }$header" >> "$cf"
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printf %s "$servers" >> "$cf"
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echo "$signature_base_end${header:+ $from }$header" >> "$cf"
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else
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[ -e "$ntp_conf" -a -e "$cf" ] || return
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fi
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# If we changed anything, restart ntpd
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if change_file "$ntp_conf" "$cf"; then
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[ -n "$ntp_restart_cmd" ] && eval $ntp_restart_cmd
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fi
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}
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add_ntp_conf()
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{
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local cf="$ntp_conf_dir/$ifname" x=
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[ -e "$cf" ] && rm "$cf"
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[ -d "$ntp_conf_dir" ] || mkdir -p "$ntp_conf_dir"
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if [ -n "$new_ntp_servers" ]; then
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for x in $new_ntp_servers; do
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echo "server $x" >> "$cf"
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done
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fi
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build_ntp_conf
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}
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remove_ntp_conf()
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{
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if [ -e "$ntp_conf_dir/$ifname" ]; then
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rm "$ntp_conf_dir/$ifname"
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fi
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build_ntp_conf
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}
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# For ease of use, map DHCP6 names onto our DHCP4 names
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case "$reason" in
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BOUND6|RENEW6|REBIND6|REBOOT6|INFORM6)
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new_ntp_servers="$new_dhcp6_sntp_servers"
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;;
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esac
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if $if_up; then
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add_ntp_conf add
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elif $if_down; then
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remove_ntp_conf del
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fi
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