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bindiff: Binary file diff
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| #!/usr/bin/env python | |
| """ | |
| Binary file diff | |
| Usage: | |
| bindiff <FILE> <FILE> | |
| Install: | |
| curl -L https://gist.githubusercontent.com/guyskk/98621a9785bd88cf2b4e804978950122/raw/efc200c6e45c3ef503249cf3b151fb8a1f5b75cb/bindiff.py -o bindiff && chmod +x bindiff | |
| """ | |
| import io | |
| import sys | |
| def _to_hex(value): | |
| if sys.version_info[0] <= 2: | |
| return ''.join('{:02x}'.format(ord(x)) for x in value).upper() | |
| else: | |
| return value.hex().upper() | |
| def main(): | |
| try: | |
| f1 = io.open(sys.argv[1], 'rb') | |
| f2 = io.open(sys.argv[2], 'rb') | |
| except IndexError: | |
| print(__doc__.strip()) | |
| sys.exit(1) | |
| except IOError as ex: | |
| print(ex) | |
| sys.exit(1) | |
| chunk_size = 40 | |
| offset = 0 | |
| max_diff = 100 | |
| num_diff = 0 | |
| try: | |
| while True: | |
| d1 = f1.read(chunk_size) | |
| d2 = f2.read(chunk_size) | |
| if d1 != d2: | |
| hex1 = _to_hex(d1) | |
| hex2 = _to_hex(d2) | |
| diff = ''.join(x == y and ' ' or '^' for x, y in zip(hex1, hex2)) | |
| pad = ' ' * (len(str(offset)) + 2) | |
| print('{}> {}\n{}{}\n{}{}'.format(offset, hex1, pad, diff, pad, hex2)) | |
| num_diff += 1 | |
| if num_diff >= max_diff: | |
| print('Too many differences, skip...') | |
| break | |
| if d1 == b'' or d2 == b'': | |
| break | |
| offset += chunk_size | |
| finally: | |
| f1.close() | |
| f2.close() | |
| if __name__ == "__main__": | |
| main() |
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