From dedbee16b1f831b971a258ef1db49d8663a9ac60 Mon Sep 17 00:00:00 2001
From: Steven Mestdagh <32965539+smestdagh@users.noreply.github.com>
Date: Sat, 9 Mar 2019 10:20:47 +0100
Subject: [PATCH] AddAnyPortMapping: check against NULL

this avoids a crash in strcasecmp by passing an empty protocol argument
---
 miniupnpd/upnpsoap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/miniupnpd/upnpsoap.c b/miniupnpd/upnpsoap.c
index acd7fed..8f62c6e 100644
--- a/miniupnpd/upnpsoap.c
+++ b/miniupnpd/upnpsoap.c
@@ -598,7 +598,7 @@ AddAnyPortMapping(struct upnphttp * h, const char * action, const char * ns)
 	if(leaseduration == 0)
 		leaseduration = 604800;
 
-	if (!int_ip || !ext_port || !int_port)
+	if (!int_ip || !ext_port || !int_port || !protocol)
 	{
 		ClearNameValueList(&data);
 		SoapError(h, 402, "Invalid Args");