return nil, 0, fmt.Errorf("loadelf: %s: %v", pn, fmt.Sprintf(str, args...))
	}

	ehdrFlags = initEhdrFlags

	base := f.Offset()

	var hdrbuf [64]byte
	if _, err := io.ReadFull(f, hdrbuf[:]); err != nil {
		return errorf("malformed elf file: %v", err)
	}

	var e binary.ByteOrder
	switch elf.Data(hdrbuf[elf.EI_DATA]) {
	case elf.ELFDATA2LSB:
		e = binary.LittleEndian

	if err != nil {
		t.Fatal(err)
	}

	bucket := "bucket"
	object := "object"
	opts := ObjectOptions{}
	buf := make([]byte, smallFileThreshold*16)
	if _, err = io.ReadFull(crand.Reader, buf); err != nil {
		t.Fatal(err)
	}

	// Test use case 1: All disks are online, xl.meta are present, but data are missing

	if int64(len(p)) < unreadPartLen {
		n1, err = d.decrypter.Read(p)
		if err != nil {
			return 0, err
		}
		d.partDecRelOffset += int64(n1)
	} else {
		n1, err = io.ReadFull(d.decrypter, p[:unreadPartLen])
		if err != nil {
			return 0, err
		}

		// We should now proceed to next part, reset all
		// values appropriately.
		d.partEncRelOffset = 0
		d.partDecRelOffset = 0

	}
	v += r - 1
	c := v % r
	if c < 0 {
		c += r
	}
	v -= c
	return v
}

func readwithpad(r io.Reader, sz int32) ([]byte, error) {
	data := make([]byte, rnd(sz, 4))
	_, err := io.ReadFull(r, data)
	if err != nil {
		return nil, err
	}
	data = data[:sz]
	return data, nil
}

type note struct {
	name    string
	tag     int32
	desc    string
	section *elf.Section
}

 * adapted from libmach.
 */
func nextar(bp *bio.Reader, off int64, a *ArHdr) int64 {
	if off&1 != 0 {
		off++
	}
	bp.MustSeek(off, 0)
	var buf [SAR_HDR]byte
	if n, err := io.ReadFull(bp, buf[:]); err != nil {
		if n == 0 && err != io.EOF {
			return -1
		}
		return 0
	}

	a.name = artrim(buf[0:16])
	a.date = artrim(buf[16:28])
	a.uid = artrim(buf[28:34])

		{
			volume: "ab",
			path:   "as-file",
			err:    errVolumeNotFound,
		},
	}

	var dataRead []byte
	// Run through all the test cases and validate for ReadAll.
	for i, testCase := range testCases {
		dataRead, err = xlStorage.ReadAll(context.Background(), testCase.volume, testCase.path)
		if err != testCase.err {
			t.Errorf("TestXLStorage %d: Expected err \"%v\", got err \"%v\"", i+1, testCase.err, err)
			continue

			// collision is reached first due to its similarly small block size
			// (see the Sweet32 attack).
			copy(explicitNonce, hc.seq[:])
		} else {
			if _, err := io.ReadFull(rand, explicitNonce); err != nil {
				return nil, err
			}
		}
	}

	var dst []byte
	switch c := hc.cipher.(type) {
	case cipher.Stream:

		case !d.IsDir() && strings.HasPrefix(d.Name(), "z"):
			// Remove generated file, identified by marker string.
			head := make([]byte, 512)
			if f, err := os.Open(path); err == nil {
				io.ReadFull(f, head)
				f.Close()
			}
			if bytes.HasPrefix(head, generated) {
				xremove(path)
			}
		}
		return nil
	})

	if rebuildall {
		// Remove object tree.

			t.Fatalf("want position %d, got %d", target, pos)
		}

		// Read data from the new position.
		end := pos + 16
		if end > int64(len(buf)) {
			end = int64(len(buf))
		}
		n, err := io.ReadFull(sf, buf[pos:end])
		if err != nil {
			t.Fatal(err)
		}
		for i := 0; i < n; i++ {
			if !have[pos] {
				have[pos] = true
				count++
			}
			pos++
		}
	}

	}
	_, err = conn.Write([]byte("GET /?underwrite=1 HTTP/1.1\r\nHost: foo\r\n\r\n"))
	if err != nil {
		t.Fatalf("error writing: %v", err)
	}

	// The ReadAll will hang for a failing test.
	got, _ := io.ReadAll(conn)
	expectedSuffix := "\r\n\r\ntoo short"
	if !strings.HasSuffix(string(got), expectedSuffix) {
		t.Errorf("Expected output to end with %q; got response body %q",