Function randomFillSync

lib/internal/crypto/random.js:120–152

(buf, offset = 0, size)

}

function randomFillSync(buf, offset = 0, size) {
  if (!isAnyArrayBuffer(buf) && !isArrayBufferView(buf)) {
    throw new ERR_INVALID_ARG_TYPE(
      'buf',
      ['ArrayBuffer', 'ArrayBufferView'],
      buf);
  }

  const elementSize = buf.BYTES_PER_ELEMENT || 1;

  offset = assertOffset(offset, elementSize, buf.byteLength);

  if (size === undefined) {
    size = buf.byteLength - offset;
  } else {
    size = assertSize(size, elementSize, offset, buf.byteLength);
  }

  if (size === 0)
    return buf;

  const job = new RandomBytesJob(
    kCryptoJobSync,
    buf,
    offset,
    size);

  const err = job.run()[0];
  if (err)
    throw err;

  return buf;
}

function randomFill(buf, offset, size, callback) {
  if (!isAnyArrayBuffer(buf) && !isArrayBufferView(buf)) {