From 3fd1e4a992a1952976846c55ccb9b721f8d059be Mon Sep 17 00:00:00 2001
From: Alexander Neumann <alexander@bumpern.de>
Date: Thu, 25 Aug 2016 21:49:00 +0200
Subject: [PATCH] Add backend.ReaderAt

---
 src/restic/backend/readerat.go | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 src/restic/backend/readerat.go

diff --git a/src/restic/backend/readerat.go b/src/restic/backend/readerat.go
new file mode 100644
index 000000000..027b34456
--- /dev/null
+++ b/src/restic/backend/readerat.go
@@ -0,0 +1,19 @@
+package backend
+
+import (
+	"io"
+)
+
+type backendReaderAt struct {
+	be Backend
+	h  Handle
+}
+
+func (brd backendReaderAt) ReadAt(p []byte, off int64) (n int, err error) {
+	return brd.be.Load(brd.h, p, off)
+}
+
+// ReaderAt returns an io.ReaderAt for a file in the backend.
+func ReaderAt(be Backend, h Handle) io.ReaderAt {
+	return backendReaderAt{be: be, h: h}
+}