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/* eslint-disable node/no-deprecated-api */ | |
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) { | |
// we can't determine kStringMaxLength in environments where process.binding | |
// is unsupported, so let's not set it | |
} | |
} | |
if (!safer.constants) { | |
safer.constants = { | |
MAX_LENGTH: safer.kMaxLength | |
} | |
if (safer.kStringMaxLength) { | |
safer.constants.MAX_STRING_LENGTH = safer.kStringMaxLength | |
} | |
} | |
module.exports = safer | |