From a44a32c484af97e54866102910fcbbc413f74905 Mon Sep 17 00:00:00 2001
From: z3APA3A <3APA3A@3proxy.ru>
Date: Tue, 8 Mar 2016 13:28:29 +0300
Subject: [PATCH] Do not fail for zero address on SOCKSv5 BIND/UDPASSOC

---
 src/socks.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/socks.c b/src/socks.c
index 31c09d8..4d048f8 100644
--- a/src/socks.c
+++ b/src/socks.c
@@ -120,7 +120,7 @@ void * sockschild(struct clientparam* param) {
 #ifndef NOIPV6
 		}
 #endif
-		if(SAISNULL(&param->req)) {
+		if(command == 1 && SAISNULL(&param->req)) {
 			RETURN(431);
 		}
 		myinet_ntop(*SAFAMILY(&param->sinsr), SAADDR(&param->sinsr), (char *)buf, 64);