buf = make([]byte, sz)
	}

	// Read file...
	_, err = io.ReadFull(f, buf)

	return buf, stat.ModTime().UTC(), osErrToFileErr(err)
}

// ReadAll is a raw call, reads content at any path and returns the buffer.
func (s *xlStorage) ReadAll(ctx context.Context, volume string, path string) (buf []byte, err error) {
	// Specific optimization to avoid re-read from the drives for `format.json`

	get := func(suffix string) string {
		res, err := ts.Client().Get(ts.URL + suffix)
		if err != nil {
			t.Fatalf("Get %s: %v", suffix, err)
		}
		b, err := io.ReadAll(res.Body)
		if err != nil {
			t.Fatalf("ReadAll %s: %v", suffix, err)
		}
		res.Body.Close()
		return string(b)
	}
	if s := get("/bar/"); !strings.Contains(s, ">foo.txt<") {

		t.Errorf("before reading body, Trailer = %#v; want %#v", g, e)
	}
	if cookie := res.Cookies()[0]; cookie.Name != "flavor" {
		t.Errorf("unexpected cookie %q", cookie.Name)
	}
	bodyBytes, _ := io.ReadAll(res.Body)
	if g, e := string(bodyBytes), backendResponse; g != e {
		t.Errorf("got body %q; expected %q", g, e)
	}
	if g, e := res.Trailer.Get("X-Trailer"), "trailer_value"; g != e {

		if !ok {
			t.Fatal("handler never got /slow request, but client returned response")
		}

		_, err = io.ReadAll(res.Body)
		res.Body.Close()

		if err == nil {
			t.Fatal("expected error from ReadAll")
		}
		ne, ok := err.(net.Error)
		if !ok {
			t.Errorf("error value from ReadAll was %T; expected some net.Error", err)
		} else if !ne.Timeout() {
			t.Errorf("net.Error.Timeout = false; want true")

	assert.Equal(t, http.StatusMethodNotAllowed, resp.StatusCode)
	body, err := io.ReadAll(resp.Body)
	require.NoError(t, err)
	assert.Equal(t, expectedResponse, string(body))

	resp, err = http.Post(fw.testHTTPServer.URL+path, "", nil)
	require.NoError(t, err)
	assert.Equal(t, http.StatusMethodNotAllowed, resp.StatusCode)
	body, err = io.ReadAll(resp.Body)
	require.NoError(t, err)

				ContentLength: int64(len(w.response)),
			}
			res, err := minio.NewSelectResults(&resp, "testbucket")
			if err != nil {
				t.Error(err)
				return
			}
			got, err := io.ReadAll(res)
			if err != nil {
				t.Error(err)
				return
			}
			gotS := strings.TrimSpace(string(got))
			if !reflect.DeepEqual(gotS, testCase.wantResult) {

		zb0001--
		field, err = dc.ReadMapKeyPtr()
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "V2Obj":
			if dc.IsNil() {
				err = dc.ReadNil()
				if err != nil {
					err = msgp.WrapError(err, "ObjectV2")
					return
				}
				z.ObjectV2 = nil
			} else {
				if z.ObjectV2 == nil {
					z.ObjectV2 = new(struct {

	ctx := r.Context()

	objectAPI, _ := validateAdminReq(ctx, w, r, policy.AddUserToGroupAdminAction)
	if objectAPI == nil {
		return
	}

	data, err := io.ReadAll(r.Body)
	if err != nil {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
		return
	}

	var updReq madmin.GroupAddRemove
	err = json.Unmarshal(data, &updReq)
	if err != nil {

	if err != nil {
		return nil, err
	}

	newChunkHdr := []byte(fmt.Sprintf("%s"+s3ChunkSignatureStr+"%s\r\n",
		hexChunkSize, chunkSignature))
	newChunk, err := io.ReadAll(bufReader)
	if err != nil {
		return nil, err
	}
	newReq := req
	newReq.Body = io.NopCloser(
		bytes.NewReader(bytes.Join([][]byte{newChunkHdr, newChunk[:len(newChunk)/2]},
			[]byte(""))),
	)

	const data = "hello, world\n"
	io.WriteString(f, data)

	b := make([]byte, 5)
	n, err := f.ReadAt(b, 7)
	if err != nil || n != len(b) {
		t.Fatalf("ReadAt 7: %d, %v", n, err)
	}
	if string(b) != "world" {
		t.Fatalf("ReadAt 7: have %q want %q", string(b), "world")
	}
}

// Verify that ReadAt doesn't affect seek offset.
// In the Plan 9 kernel, there used to be a bug in the implementation of