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function incr32 (iv) { |
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var len = iv.length |
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var item |
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while (len--) { |
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item = iv.readUInt8(len) |
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if (item === 255) { |
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iv.writeUInt8(0, len) |
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} else { |
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item++ |
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iv.writeUInt8(item, len) |
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break |
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} |
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} |
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} |
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module.exports = incr32
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