16 lines
371 B
Python
16 lines
371 B
Python
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#!/usr/bin/env python
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# crc32.py -- calculate crc32 checksum of data
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# Copyright (C) 2016-present SheetJS
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from zlib import crc32
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from sys import argv, stdin
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args=argv[1:]
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payload=""
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if len(args) == 0 or args[0] == "-":
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payload = stdin.read()
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else:
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payload = open(args[0],"rb").read()
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# NOTE: python 2 returns a signed value; python3 is unsigned
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print crc32(payload)
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