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16 lines
260 B
JavaScript
16 lines
260 B
JavaScript
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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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