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#!/bin/sh
#
# This file is part of the coreboot project.
#
# Copyright 2019 Google Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
main() {
if [ "$#" != 1 ]; then
echo "Usage: $0 MAINBOARD_PARTNUMBER" >&2
exit 1
fi
# Generate a test-only Chrome OS HWID v2 string
local board="$1"
local prefix="$(echo "${board}" | tr a-z A-Z) TEST"
# gzip has second-to-last 4 bytes in CRC32.
local crc32="$(printf "${prefix}" | gzip -1 | tail -c 8 | head -c 4 | \
hexdump -e '1/4 "%04u" ""' | tail -c 4)"
echo "${prefix}" "${crc32}"
}
main "$@"
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