1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677 |
- 'use strict'
- var buffer = require('buffer')
- var Buffer = buffer.Buffer
- var safer = {}
- var key
- for (key in buffer) {
- if (!buffer.hasOwnProperty(key)) continue
- if (key === 'SlowBuffer' || key === 'Buffer') continue
- safer[key] = buffer[key]
- }
- var Safer = safer.Buffer = {}
- for (key in Buffer) {
- if (!Buffer.hasOwnProperty(key)) continue
- if (key === 'allocUnsafe' || key === 'allocUnsafeSlow') continue
- Safer[key] = Buffer[key]
- }
- safer.Buffer.prototype = Buffer.prototype
- if (!Safer.from || Safer.from === Uint8Array.from) {
- Safer.from = function (value, encodingOrOffset, length) {
- if (typeof value === 'number') {
- throw new TypeError('The "value" argument must not be of type number. Received type ' + typeof value)
- }
- if (value && typeof value.length === 'undefined') {
- throw new TypeError('The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object. Received type ' + typeof value)
- }
- return Buffer(value, encodingOrOffset, length)
- }
- }
- if (!Safer.alloc) {
- Safer.alloc = function (size, fill, encoding) {
- if (typeof size !== 'number') {
- throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size)
- }
- if (size < 0 || size >= 2 * (1 << 30)) {
- throw new RangeError('The value "' + size + '" is invalid for option "size"')
- }
- var buf = Buffer(size)
- if (!fill || fill.length === 0) {
- buf.fill(0)
- } else if (typeof encoding === 'string') {
- buf.fill(fill, encoding)
- } else {
- buf.fill(fill)
- }
- return buf
- }
- }
- if (!safer.kStringMaxLength) {
- try {
- safer.kStringMaxLength = process.binding('buffer').kStringMaxLength
- } catch (e) {
-
-
- }
- }
- if (!safer.constants) {
- safer.constants = {
- MAX_LENGTH: safer.kMaxLength
- }
- if (safer.kStringMaxLength) {
- safer.constants.MAX_STRING_LENGTH = safer.kStringMaxLength
- }
- }
- module.exports = safer
|