storage/boltdb.go | 15 ++++++++-------

diff --git a/storage/boltdb.go b/storage/boltdb.go
index 4a6928a52afdfd743e1dd8490415154f765dee47..a198f4888a332c8c964f694c5c848cc9795591de 100644
--- a/storage/boltdb.go
+++ b/storage/boltdb.go
@@ -2,6 +2,7 @@ package storage
 
 import (
 	"encoding/binary"
+	"io"
 	"path/filepath"
 
 	"github.com/boltdb/bolt"
@@ -100,13 +101,13 @@ 			n += n1
 		}
 		return nil
 	})
-	// if n == 0 && err == nil {
-	// 	if off < me.p.Length() {
-	// 		err = io.ErrUnexpectedEOF
-	// 	} else {
-	// 		err = io.EOF
-	// 	}
-	// }
+	if n == 0 && err == nil {
+		if off < me.p.Length() {
+			err = io.ErrUnexpectedEOF
+		} else {
+			err = io.EOF
+		}
+	}
 	// // log.Println(n, err)
 	return
 }