From c7fd071f2223634d351d0ed3b0520af162457db1 Mon Sep 17 00:00:00 2001
From: eric <eric.y.corsican@gmail.com>
Date: Sat, 6 Jul 2019 14:32:30 +0800
Subject: [PATCH] fix UDP associate

Read() simply returns if the buffer is empty.
---
 tcp.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tcp.go b/tcp.go
index fe0701d5..243b2704 100644
--- a/tcp.go
+++ b/tcp.go
@@ -48,7 +48,7 @@ func tcpLocal(addr, server string, shadow func(net.Conn) net.Conn, getAddr func(
 
 				// UDP: keep the connection until disconnect then free the UDP socket
 				if err == socks.InfoUDPAssociate {
-					buf := []byte{}
+					buf := make([]byte, 1)
 					// block here
 					for {
 						_, err := c.Read(buf)