From 25b63636a077a86f24f8226138d96c7257b6ac84 Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@rei2.9hal>
Date: Sun, 11 Mar 2012 18:18:59 +0100
Subject: [PATCH] socksd: udp RSV and FRAG must be zero

---
 sys/src/cmd/ip/socksd.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sys/src/cmd/ip/socksd.c b/sys/src/cmd/ip/socksd.c
index e9f8723f6..c7a487f7b 100644
--- a/sys/src/cmd/ip/socksd.c
+++ b/sys/src/cmd/ip/socksd.c
@@ -122,7 +122,10 @@ udprelay(int fd, char *dir)
 		while((r = read(fd, msg.data, sizeof(msg.data))) > 0){
 			if(r < 4)
 				continue;
-			p = msg.data + 3;
+			p = msg.data;
+			if(p[0] | p[1] | p[2])
+				continue;
+			p += 3;
 			switch(*p++){
 			default:
 				continue;