gen_cert_header.py

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# This Source Code Form is subject to the terms of the Mozilla Public

# License, v. 2.0. If a copy of the MPL was not distributed with this file,

# You can obtain one at http://mozilla.org/MPL/2.0/.

import os

def file_byte_generator(filename, block_size=512):

    with open(filename, "rb") as f:

        while True:

            block = f.read(block_size)

            if block:

                for byte in block:

                    yield byte

            else:

                break

def create_header(out_fh, in_filename):

    assert out_fh.name.endswith(".h")

    array_name = os.path.basename(out_fh.name)[:-2] + "Data"

    hexified = ["0x%02x" % byte for byte in file_byte_generator(in_filename)]

    print("const uint8_t " + array_name + "[] = {", file=out_fh)

    print(", ".join(hexified), file=out_fh)

    print("};", file=out_fh)

    return 0