From cad611bbcfc0f0ac6bdf59cbce2f435fb4485dac Mon Sep 17 00:00:00 2001
From: Matt Joiner <anacrolix@gmail.com>
Date: Sat, 7 Mar 2015 17:11:02 +1100
Subject: [PATCH] Since IPv6 blocklists aren't prevalent, default to using IPv4
 in client for now

---
 client.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/client.go b/client.go
index eddfcff8..8eeb5ad4 100644
--- a/client.go
+++ b/client.go
@@ -499,7 +499,9 @@ func NewClient(cfg *Config) (cl *Client, err error) {
 			return addr.String()
 		}
 		if cfg.ListenAddr == "" {
-			return ":50007"
+			// IPv6 isn't well supported with blocklists, or with trackers and
+			// DHT.
+			return "0.0.0.0:50007"
 		}
 		return cfg.ListenAddr
 	}
@@ -1728,6 +1730,7 @@ func (f File) Path() string {
 	return f.path
 }
 
+// A file-like handle to some torrent data resource.
 type Handle interface {
 	io.Reader
 	io.Seeker