27 lines
893 B
Python
27 lines
893 B
Python
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import argparse
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def main():
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p = argparse.ArgumentParser()
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p.add_argument('--file', required=True)
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p.add_argument('--byte', required=True, help='byte value in hex (e.g. 0x0c)')
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p.add_argument('--base', type=lambda x: int(x,0), default=0x80000000)
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p.add_argument('--start', type=lambda x: int(x,0), default=0x80064000)
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p.add_argument('--end', type=lambda x: int(x,0), default=0x80064800)
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args = p.parse_args()
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bval = int(args.byte, 0)
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with open(args.file, 'rb') as f:
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f.seek(0,2)
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size = f.tell()
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s = args.start - args.base
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e = args.end - args.base
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s = max(0, s)
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e = min(size, e)
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f.seek(s)
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data = f.read(e-s)
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for i, b in enumerate(data):
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if b == bval:
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addr = args.base + s + i
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print(hex(addr), hex(s+i))
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if __name__ == '__main__':
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main()
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