#!/usr/bin/env python

# Copyright (C) 2024, Mark Qvist

# 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, either version 3 of the License, or
# (at your option) any later version.

# 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.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

import os
import sys
import RNS
import json
import hashlib

major_version = None
minor_version = None
target_version = None

target_file = os.path.join(sys.argv[1])

firmware_data = open(target_file, "rb").read()
calc_hash = hashlib.sha256(firmware_data[0:-32]).digest()
part_hash = firmware_data[-32:]

if calc_hash == part_hash:
    print(RNS.hexrep(part_hash, delimit=False))