#!/bin/sh
parse_plugin_args(){
    [ $# -ne 4 ] && plugin_usage && exit 1
    # convenience function to put args in ENV variables
    ESSID="$1"

    # mac is returned without colon
    MAC=$(printf "%s" "$2" | sed 's/://g')
    # split up the mac address to vendor and private part
    VENDOR_MAC=${MAC:0:6}
    PRIVATE_MAC=${MAC:6:12}
    CHANNEL="$3"
    ENC="$4"
    if [ ${#MAC} -ne 12 ] ;then
        echo "MAC malformed"
        exit 1
    fi
}
plugin_usage(){
    cat << EOF
usage: $0 ESSID MAC CHANNEL ENC"

    ESSID   - string
    MAC     - 00:11:22:33:44:55
    CHANNEL - 4
    ENC     - wpa
EOF
    
}

check_vendor_mac(){
  needle="$(printf $1 | tr '[A-Z]' '[a-z]')"
  shift
  for i in "$@";do
    [ "$needle" == "$(printf $i | tr '[A-Z]' '[a-z]')" ] && return 0
  done
  return 1
}
check_painmode(){
    test -z "${painmode:-}" && echo "painmode required" && exit 1
}