waveguide/fake/wifi

#!/bin/sh
echo "fake/wifi:" "$@" >&2
cd "$(dirname "$0")"

if [ "$1" = "scan" ]; then
  # TODO(willangley): pass the dev in an env var for tests, since looking it up
  #   from the platform cannot be expected to work.
  iw_scan="./iw dev wlan-22:22 scan"
  while [ -n "$2" ]; do
    shift
    case "$1" in
      -b)
        shift
        ;;
      --scan-freq)
        shift
        iw_scan="$iw_scan freq $1"
        ;;
      --scan-*)
        iw_scan="$iw_scan ${1#--scan-}"
        ;;
    esac
  done
  exec $iw_scan
else
  echo "fake/wifi: first arg ('$1') must be 'scan'" >&2
  exit 99
fi