[6a3a178] | 1 | /* eslint-disable node/no-deprecated-api */
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| 2 | var buffer = require('buffer')
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| 3 | var Buffer = buffer.Buffer
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| 4 |
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| 5 | // alternative to using Object.keys for old browsers
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| 6 | function copyProps (src, dst) {
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| 7 | for (var key in src) {
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| 8 | dst[key] = src[key]
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| 9 | }
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| 10 | }
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| 11 | if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
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| 12 | module.exports = buffer
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| 13 | } else {
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| 14 | // Copy properties from require('buffer')
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| 15 | copyProps(buffer, exports)
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| 16 | exports.Buffer = SafeBuffer
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| 17 | }
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| 18 |
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| 19 | function SafeBuffer (arg, encodingOrOffset, length) {
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| 20 | return Buffer(arg, encodingOrOffset, length)
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| 21 | }
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| 22 |
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| 23 | // Copy static methods from Buffer
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| 24 | copyProps(Buffer, SafeBuffer)
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| 25 |
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| 26 | SafeBuffer.from = function (arg, encodingOrOffset, length) {
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| 27 | if (typeof arg === 'number') {
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| 28 | throw new TypeError('Argument must not be a number')
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| 29 | }
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| 30 | return Buffer(arg, encodingOrOffset, length)
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| 31 | }
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| 32 |
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| 33 | SafeBuffer.alloc = function (size, fill, encoding) {
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| 34 | if (typeof size !== 'number') {
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| 35 | throw new TypeError('Argument must be a number')
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| 36 | }
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| 37 | var buf = Buffer(size)
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| 38 | if (fill !== undefined) {
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| 39 | if (typeof encoding === 'string') {
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| 40 | buf.fill(fill, encoding)
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| 41 | } else {
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| 42 | buf.fill(fill)
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| 43 | }
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| 44 | } else {
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| 45 | buf.fill(0)
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| 46 | }
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| 47 | return buf
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| 48 | }
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| 49 |
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| 50 | SafeBuffer.allocUnsafe = function (size) {
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| 51 | if (typeof size !== 'number') {
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| 52 | throw new TypeError('Argument must be a number')
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| 53 | }
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| 54 | return Buffer(size)
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| 55 | }
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| 56 |
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| 57 | SafeBuffer.allocUnsafeSlow = function (size) {
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| 58 | if (typeof size !== 'number') {
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| 59 | throw new TypeError('Argument must be a number')
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| 60 | }
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| 61 | return buffer.SlowBuffer(size)
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| 62 | }
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