From fc767a3f0376ea56d34470f6527f5e4217930b83 Mon Sep 17 00:00:00 2001
From: Erick Turnquist <jhujhiti@adjectivism.org>
Date: Sun, 8 Feb 2009 22:45:30 +0000
Subject: [PATCH] (trunk libT) don't attempt to connect to (half-complete) ipv6
 link-local addresses

---
 libtransmission/net.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/libtransmission/net.c b/libtransmission/net.c
index 11109c24e..9b0bcce7d 100644
--- a/libtransmission/net.c
+++ b/libtransmission/net.c
@@ -462,10 +462,19 @@ isMulticastAddress( const tr_address * addr )
     return FALSE;
 }
 
+static TR_INLINE tr_bool
+isIPv6LinkLocalAddress( const tr_address * addr )
+{
+    if( addr->type == TR_AF_INET6 &&
+            IN6_IS_ADDR_LINKLOCAL( &addr->addr.addr6 ))
+        return TRUE;
+    return FALSE;
+}
+
 tr_bool
 tr_isValidPeerAddress( const tr_address * addr, tr_port port )
 {
-    if( isMulticastAddress( addr ) )
+    if( isMulticastAddress( addr ) || isIPv6LinkLocalAddress( addr ) )
         return FALSE;
 
     if( port == 0 )
@@ -486,7 +495,7 @@ tr_netOpenTCP( tr_session        * session,
 
     assert( tr_isAddress( addr ) );
 
-    if( isMulticastAddress( addr ) )
+    if( isMulticastAddress( addr ) || isIPv6LinkLocalAddress( addr ))
         return -EINVAL;
 
     if( ( s = createSocket( ( addr->type == TR_AF_INET ? AF_INET : AF_INET6 ), type ) ) < 0 )