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