From 65f486ff020a14e88f6d389935cacebfefe7d003 Mon Sep 17 00:00:00 2001
From: Aron Fischer <github@aron.guru>
Date: Thu, 22 Dec 2016 00:32:08 +0100
Subject: [PATCH] swarm/api: check for zero length manifest error (#3468)

---
 swarm/api/manifest.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/swarm/api/manifest.go b/swarm/api/manifest.go
index a289c01f96..d6dc24c486 100644
--- a/swarm/api/manifest.go
+++ b/swarm/api/manifest.go
@@ -62,6 +62,11 @@ func readManifest(manifestReader storage.LazySectionReader, hash storage.Key, dp
 
 	// TODO check size for oversized manifests
 	size, err := manifestReader.Size(quitC)
+	if err != nil { // size == 0
+		// can't determine size means we don't have the root chunk
+		err = fmt.Errorf("Manifest not Found")
+		return
+	}
 	manifestData := make([]byte, size)
 	read, err := manifestReader.Read(manifestData)
 	if int64(read) < size {