miniupnpc: Show error message when GetExternalIPAddress returns empty…

… string According to IGD v2.0 specification GetExternalIPAddress can return also empty string in case of error.
miniupnp · Mar 28, 2021 · 20ee72f · 20ee72f
1 parent 79ca440
commit 20ee72f
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/miniupnpc/upnpc.c b/miniupnpc/upnpc.c
@@ -111,6 +111,8 @@ static void DisplayInfos(struct UPNPUrls * urls,
 							  externalIPAddress);
 	if(r != UPNPCOMMAND_SUCCESS) {
 		printf("GetExternalIPAddress failed. (errorcode=%d)\n", r);
+	} else if(!externalIPAddress[0]) {
+		printf("GetExternalIPAddress failed. (empty string)\n");
 	} else {
 		printf("ExternalIPAddress = %s\n", externalIPAddress);
 	}