From be2ddb7e4d78e4cbd6243a99afd9d4217a5c9372 Mon Sep 17 00:00:00 2001
From: Paul Saab <ps@mu.org>
Date: Mon, 29 Sep 2014 11:55:18 -0700
Subject: [PATCH] Fix IPv4 stats

net.ParseIP() will return a v4mapped address which makes len(ip) ==
IPv6len and breaks stats for IPv4 requests.
---
 tracker/models/models.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tracker/models/models.go b/tracker/models/models.go
index f74e17b..80156d3 100644
--- a/tracker/models/models.go
+++ b/tracker/models/models.go
@@ -51,7 +51,11 @@ func NewPeerKey(peerID string, ip net.IP) PeerKey {
 }
 
 func (pk PeerKey) IP() net.IP {
-	return net.ParseIP(strings.Split(string(pk), "//")[1])
+	ip := net.ParseIP(strings.Split(string(pk), "//")[1])
+	if rval := ip.To4(); rval != nil {
+		return rval
+	}
+	return ip
 }
 
 func (pk PeerKey) PeerID() string {