swarm/api: check for zero length manifest error (ethereum#3468)

s7v7nislands · Dec 21, 2016 · 65f486f · 65f486f
1 parent df096a7
commit 65f486f
Showing 1 changed file with 5 additions and 0 deletions.
diff --git 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 {