From 2a0880578358c0e0f4df595c417a62dfc45cd418 Mon Sep 17 00:00:00 2001
From: Thomas Bernard <miniupnp@free.fr>
Date: Tue, 28 Apr 2015 09:01:30 +0200
Subject: [PATCH] minissdp.c: Dont try to close sockets with fd=-1

fixes #112
---
 miniupnpd/minissdp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/miniupnpd/minissdp.c b/miniupnpd/minissdp.c
index 9fff6d9..3033dcb 100644
--- a/miniupnpd/minissdp.c
+++ b/miniupnpd/minissdp.c
@@ -1169,6 +1169,8 @@ SendSSDPGoodbye(int * sockets, int n_sockets)
 
 	for(j=0; j<n_sockets; j++)
 	{
+		if(sockets[j] < 0)
+			continue;
 #ifdef ENABLE_IPV6
 		ipv6 = j & 1;
 		if(ipv6) {