From 775f7bce09426516a813bbbbd7af749dd4eea59e Mon Sep 17 00:00:00 2001
From: Andy Green <andy@warmcat.com>
Date: Mon, 19 Mar 2018 08:05:37 +0800
Subject: [PATCH] coverity 188313: client: avoid possibility of strlen on NULL
 cce

---
 lib/client/client.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/client/client.c b/lib/client/client.c
index 04c9201b..25e345c2 100644
--- a/lib/client/client.c
+++ b/lib/client/client.c
@@ -1171,11 +1171,15 @@ bail3:
 	close_reason = LWS_CLOSE_STATUS_NOSTATUS;
 
 bail2:
-	if (wsi->protocol)
+	if (wsi->protocol) {
+		n = 0;
+		if (cce)
+			n = strlen(cce);
 		wsi->protocol->callback(wsi,
 				LWS_CALLBACK_CLIENT_CONNECTION_ERROR,
 				wsi->user_space, (void *)cce,
-				(unsigned int)strlen(cce));
+				(unsigned int)n);
+	}
 	wsi->already_did_cce = 1;
 
 	lwsl_info("closing connection due to bail2 connection error\n");