1  /* eslint-disable node/no-deprecated-api */
 2  
 3  'use strict'
 4  
 5  var buffer = require('buffer')
 6  var Buffer = buffer.Buffer
 7  var safer = require('./safer.js')
 8  var Safer = safer.Buffer
 9  
10  var dangerous = {}
11  
12  var key
13  
14  for (key in safer) {
15    if (!safer.hasOwnProperty(key)) continue
16    dangerous[key] = safer[key]
17  }
18  
19  var Dangereous = dangerous.Buffer = {}
20  
21  // Copy Safer API
22  for (key in Safer) {
23    if (!Safer.hasOwnProperty(key)) continue
24    Dangereous[key] = Safer[key]
25  }
26  
27  // Copy those missing unsafe methods, if they are present
28  for (key in Buffer) {
29    if (!Buffer.hasOwnProperty(key)) continue
30    if (Dangereous.hasOwnProperty(key)) continue
31    Dangereous[key] = Buffer[key]
32  }
33  
34  if (!Dangereous.allocUnsafe) {
35    Dangereous.allocUnsafe = function (size) {
36      if (typeof size !== 'number') {
37        throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size)
38      }
39      if (size < 0 || size >= 2 * (1 << 30)) {
40        throw new RangeError('The value "' + size + '" is invalid for option "size"')
41      }
42      return Buffer(size)
43    }
44  }
45  
46  if (!Dangereous.allocUnsafeSlow) {
47    Dangereous.allocUnsafeSlow = function (size) {
48      if (typeof size !== 'number') {
49        throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size)
50      }
51      if (size < 0 || size >= 2 * (1 << 30)) {
52        throw new RangeError('The value "' + size + '" is invalid for option "size"')
53      }
54      return buffer.SlowBuffer(size)
55    }
56  }
57  
58  module.exports = dangerous