From 086c9de7800751e1f53f6e3015e29ed93d42f8a2 Mon Sep 17 00:00:00 2001
From: clowwindy <clowwindy42@gmail.com>
Date: Sat, 19 Apr 2014 20:46:12 +0800
Subject: [PATCH] fix compatibility issue

---
 src/udprelay.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/udprelay.c b/src/udprelay.c
index 826224dd..0eb5bbe7 100644
--- a/src/udprelay.c
+++ b/src/udprelay.c
@@ -515,11 +515,15 @@ static void remote_recv_cb (EV_P_ ev_io *w, int revents)
     }
 
     int len = parse_udprealy_header(buf, buf_len, NULL, NULL);
-    if (len == 0 || len != addr_header_len)
+    if (len == 0)
     {
+        LOGD("[udp] Error in parse header");
         // error in parse header
         goto CLEAN_UP;
     }
+    // server may return using a different address type other than the type we
+    // have used during sending
+    addr_header_len = len;
 
 #ifdef UDPRELAY_TUNNEL
     // Construct packet