config_ntpdate() {
  echo "graph_title NTP offset and dealy to peer $NTP_PEER"
  echo "graph_args --base 1000 --vertical-label msec"
  echo "offset.label Offset"
  echo "offset.draw LINE2"
  echo "delay.label Delay"
  echo "delay.draw LINE2"
}

fetch_ntpdate() {
  NTPDATE="/usr/sbin/ntpdate"
  DATA=(0 0)
  if [ "$NTP_PEER" != "" ]; then
    if [ -x "$NTPDATE" ]; then
      DATA=($($NTPDATE -q $NTP_PEER | awk '/^server.*offset/{gsub(/,/,"");printf "%s %s", ($6*1000), ($8*1000);}'))
    fi
  fi
  echo "offset.value "${DATA[0]}
  echo "delay.value "${DATA[1]}
}