long totalSkipped = 0;
    // A buffer is allocated if skipSafely does not skip any bytes.
    byte[] buf = null;

    while (totalSkipped < n) {
      long remaining = n - totalSkipped;
      long skipped = skipSafely(in, remaining);

      if (skipped == 0) {
        // Do a buffered read since skipSafely could return 0 repeatedly, for example if