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#!/usr/bin/env python3
# This file is part of the Trezor project.
#
# Copyright (C) 2012-2022 SatoshiLabs and contributors
#
# This library is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License version 3
# as published by the Free Software Foundation.
#
# This library 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 Lesser General Public License for more details.
#
# You should have received a copy of the License along with this library.
# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
import sys
from typing import BinaryIO, TextIO
import click
from trezorlib._internal import firmware_headers
@click.command()
@click.argument("filename", type=click.File("rb"))
@click.option("-o", "--output", type=click.File("w"), default="-")
def firmware_fingerprint(filename: BinaryIO, output: TextIO) -> None:
"""Display fingerprint of a firmware file."""
data = filename.read()
try:
click.echo(firmware_headers.parse_image(data).digest().hex(), file=output)
except Exception as e:
click.echo(e, err=True)
sys.exit(2)
if __name__ == "__main__":
firmware_fingerprint()
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