From 00a4e9bc1180cb8756ca5ac8689780b7e7261412 Mon Sep 17 00:00:00 2001
From: Matt Joiner <anacrolix@gmail.com>
Date: Fri, 22 Aug 2014 03:42:00 +1000
Subject: [PATCH] Fix crash in metadata requests beyond available info bytes

---
 torrent.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/torrent.go b/torrent.go
index 7257bb30..178f29ae 100644
--- a/torrent.go
+++ b/torrent.go
@@ -91,7 +91,11 @@ func (t *torrent) MetadataPieceCount() int {
 }
 
 func (t *torrent) HaveMetadataPiece(piece int) bool {
-	return t.haveInfo() || t.metadataHave[piece]
+	if t.haveInfo() {
+		return (1<<14)*piece < len(t.MetaData)
+	} else {
+		return t.metadataHave[piece]
+	}
 }
 
 func (t *torrent) metadataSizeKnown() bool {