From 0118338d82e2471572990a1ea09593265161e4a4 Mon Sep 17 00:00:00 2001
From: Daniel-Constantin Mierla <miconda@gmail.com>
Date: Thu, 5 May 2016 10:10:59 +0200
Subject: [PATCH] core: print tos value if socket option for it cannot be set

- to help with GH #598
---
 tcp_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tcp_main.c b/tcp_main.c
index 578f7d27a60..d14725771b8 100644
--- a/tcp_main.c
+++ b/tcp_main.c
@@ -2751,7 +2751,7 @@ int tcp_init(struct socket_info* sock_info)
 	optval = tos;
 	if (setsockopt(sock_info->socket, IPPROTO_IP, IP_TOS, (void*)&optval, 
 				sizeof(optval)) ==-1){
-		LM_WARN("setsockopt tos: %s\n", strerror(errno));
+		LM_WARN("setsockopt tos: %s (%d)\n", strerror(errno), tos);
 		/* continue since this is not critical */
 	}
 #ifdef HAVE_TCP_DEFER_ACCEPT