From 122f23314378e951e06c89f290f126069d96e69d Mon Sep 17 00:00:00 2001
From: clowwindy <clowwindy42@gmail.com>
Date: Fri, 11 Jul 2014 18:00:58 +0800
Subject: [PATCH] fix udprelay for local

---
 shadowsocks/udprelay.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/shadowsocks/udprelay.py b/shadowsocks/udprelay.py
index c7faeee..5149ac4 100644
--- a/shadowsocks/udprelay.py
+++ b/shadowsocks/udprelay.py
@@ -176,13 +176,14 @@ class UDPRelay(object):
             self._sockets.add(client.fileno())
             self._eventloop.add(client, eventloop.POLL_IN)
 
-        data = data[header_length:]
-        if not data:
-            return
         if self._is_local:
             data = encrypt.encrypt_all(self._password, self._method, 1, data)
             if not data:
                 return
+        else:
+            data = data[header_length:]
+        if not data:
+            return
         try:
             client.sendto(data, (server_addr, server_port))
         except IOError as e: