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Diffstat (limited to 'vendor/github.com/ulikunitz/xz/reader.go')
-rw-r--r--vendor/github.com/ulikunitz/xz/reader.go8
1 files changed, 6 insertions, 2 deletions
diff --git a/vendor/github.com/ulikunitz/xz/reader.go b/vendor/github.com/ulikunitz/xz/reader.go
index 0634c6bcc..22cd6d500 100644
--- a/vendor/github.com/ulikunitz/xz/reader.go
+++ b/vendor/github.com/ulikunitz/xz/reader.go
@@ -1,4 +1,4 @@
-// Copyright 2014-2017 Ulrich Kunitz. All rights reserved.
+// Copyright 2014-2019 Ulrich Kunitz. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
@@ -283,7 +283,11 @@ func (c *ReaderConfig) newBlockReader(xz io.Reader, h *blockHeader,
if err != nil {
return nil, err
}
- br.r = io.TeeReader(fr, br.hash)
+ if br.hash.Size() != 0 {
+ br.r = io.TeeReader(fr, br.hash)
+ } else {
+ br.r = fr
+ }
return br, nil
}