From 3a89059271507a614b62c90e1175d5d5cbffe904 Mon Sep 17 00:00:00 2001
From: "Roger A. Light" <roger@atchoo.org>
Date: Tue, 4 Feb 2020 17:11:11 +0000
Subject: [PATCH] Don't call SSL_shutdown() if SSL init hasn't completed.

---
 lib/net_mosq.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/net_mosq.c b/lib/net_mosq.c
index 4fbdd7ad..a0d837b8 100644
--- a/lib/net_mosq.c
+++ b/lib/net_mosq.c
@@ -199,7 +199,9 @@ int net__socket_close(struct mosquitto *mosq)
 #endif
 	{
 		if(mosq->ssl){
-			SSL_shutdown(mosq->ssl);
+			if(!SSL_in_init(mosq->ssl)){
+				SSL_shutdown(mosq->ssl);
+			}
 			SSL_free(mosq->ssl);
 			mosq->ssl = NULL;
 		}