From 735283a799dc6583eb0a94adf3588773a4f04557 Mon Sep 17 00:00:00 2001
From: Jack Palevich <jackpal@google.com>
Date: Sun, 27 Jul 2014 17:09:48 +0800
Subject: [PATCH] Avoid crash if p.have.n is 0

Work around issue #54.
---
 torrent/torrent.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/torrent/torrent.go b/torrent/torrent.go
index e70ff43..d93a6d5 100644
--- a/torrent/torrent.go
+++ b/torrent/torrent.go
@@ -815,7 +815,7 @@ func (t *TorrentSession) RecordBlock(p *peerState, piece, begin, length uint32)
 			}
 			for _, p := range t.peers {
 				if p.have != nil {
-					if p.have.IsSet(int(piece)) {
+					if int(piece) < p.have.n && p.have.IsSet(int(piece)) {
 						// We don't do anything special. We rely on the caller
 						// to decide if this peer is still interesting.
 					} else {