From 5fe9335b366a5e442fb1e4d74646241036cfc1d4 Mon Sep 17 00:00:00 2001
From: Andy Green <andy@warmcat.com>
Date: Mon, 19 Mar 2018 19:20:29 +0800
Subject: [PATCH] coverity 188416: possibility of NULL iface

---
 lib/libwebsockets.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/libwebsockets.c b/lib/libwebsockets.c
index 997c103b..c087c070 100644
--- a/lib/libwebsockets.c
+++ b/lib/libwebsockets.c
@@ -2373,6 +2373,8 @@ lws_socket_bind(struct lws_vhost *vhost, lws_sockfd_type sockfd, int port,
 		n = sizeof(struct sockaddr_un);
 		bzero((char *) &serv_unix, sizeof(serv_unix));
 		serv_unix.sun_family = AF_UNIX;
+		if (!iface)
+			return -1;
 		if (sizeof(serv_unix.sun_path) <= strlen(iface)) {
 			lwsl_err("\"%s\" too long for UNIX domain socket\n",
 			         iface);