24 lines
506 B
Python
24 lines
506 B
Python
import sys
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start_offset = sys.argv[1]
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size = sys.argv[2]
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input_file = sys.argv[3]
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output_file = sys.argv[4]
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assert start_offset.startswith('0x')
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start_offset = int(start_offset[2:], 16)
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assert size.startswith('0x')
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size = int(size[2:], 16)
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with open(sys.argv[3], 'rb') as f:
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in_buf = f.read()
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with open(sys.argv[4], 'rb') as f:
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out_buf = bytearray(f.read())
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for i in range(start_offset, start_offset + size):
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out_buf[i] = in_buf[i]
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with open(sys.argv[4], 'wb') as f:
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f.write(out_buf)
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