From a62c03fe2c60c8323083b5bf1102906da0ab5914 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Wed, 31 Oct 2012 22:03:54 -0400
Subject: [PATCH] Never support IPv6 traffic on a SOCKS4 connection.

---
 src/or/connection_edge.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/or/connection_edge.c b/src/or/connection_edge.c
index 969128fcfb..2a46529f01 100644
--- a/src/or/connection_edge.c
+++ b/src/or/connection_edge.c
@@ -1172,6 +1172,9 @@ connection_ap_handshake_rewrite_and_attach(entry_connection_t *conn,
         }
       }
 
+      if (socks->socks_version == 4)
+        conn->ipv6_traffic_ok = 0;
+
       if (!conn->use_begindir && !conn->chosen_exit_name && !circ) {
         /* see if we can find a suitable enclave exit */
         const node_t *r =