#!/bin/sh

# by Raphael H. Becker <Raphael.Becker@uugrn.org>
#
# This little script reads a MAC-Adress from stdin and
# searches for the manufactor of the NIC. This script uses
# http://standards.ieee.org/regauth/oui/oui.txt for it.
# This Textfile ist about some hunded of kB so this file
# will be cached on the first run.

FILE=~/.mac.dat
URL=http://standards.ieee.org/regauth/oui/oui.txt

if [ $1 ]
then
  if [ ! -f $FILE ]
  then
    # File not found, download it (>600kB!):
    lynx -dump $URL >$FILE
  fi
  grep -iA4 $(echo $1|sed -e 's/:/-/g'|cut -f 1-3 -d "-") $FILE|cut -c 33-
else
  echo "Usage: $0 <HWaddr as shown in arp(8) or ifconfig(0)>"
fi