#!/bin/sh

. /etc/utils.sh

GHN_DIR="/tmp/ghn"

usage() {
  echo "Usage:"
  echo
  echo "  $0 $1"
  echo
  echo "  A wrapper for 'read-ghn-node' when querying the local G.hn node "
  echo "  Grabs a single paramater and prints the value. "
  echo
  exit 99
}

if ! has-ghn; then
  exit 0
fi

if [ "$#" -ne "1" ]; then
  usage "$1"
fi

GHN_MAC_ADDR=$(cat "$GHN_DIR"/mac_addr)
read-ghn-node "$GHN_MAC_ADDR" "$1"