From: Matt Joiner <anacrolix@gmail.com>
Date: Tue, 9 Jan 2018 06:26:01 +0000 (+1100)
Subject: Screen negative pieces
X-Git-Tag: v1.0.0~289
X-Git-Url: http://www.git.stargrave.org/?a=commitdiff_plain;h=8eb1a3effe9cbd1336c9e10da9d4eae9785b3b53;p=btrtrc.git

Screen negative pieces

Should fix #228.
---

diff --git a/connection.go b/connection.go
index 34737d6b..f4bef805 100644
--- a/connection.go
+++ b/connection.go
@@ -667,7 +667,7 @@ func (cn *connection) raisePeerMinPieces(newMin int) {
 }
 
 func (cn *connection) peerSentHave(piece int) error {
-	if cn.t.haveInfo() && piece >= cn.t.numPieces() {
+	if cn.t.haveInfo() && piece >= cn.t.numPieces() || piece < 0 {
 		return errors.New("invalid piece")
 	}
 	if cn.PeerHasPiece(piece) {