29 lines
867 B
Python
29 lines
867 B
Python
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#!/usr/bin/env python3
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"""Patch a file with another file at offset. Useful for dirty DAT patching."""
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import argparse
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def main():
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argparser = argparse.ArgumentParser()
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argparser.add_argument("archive", help="File to be modified")
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argparser.add_argument("file", help="File to patch in archive")
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argparser.add_argument("offset", help="Offset as hex")
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args = argparser.parse_args()
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archive_path, input_file_path = args.archive, args.file
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ofs = int(args.offset.lstrip("0x").rstrip("h"), 16)
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patch(archive_path, input_file_path, ofs)
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def patch(archive_path, input_file_path, ofs):
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with open(input_file_path, "rb") as input_file:
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input_data = input_file.read()
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with open(archive_path, "rb+") as archive_file:
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archive_file.seek(ofs)
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archive_file.write(input_data)
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if __name__ == "__main__":
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main()
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