Ticket #235: nginx_sni_null_data.diff

src/event/ngx_event_openssl.c

@@ -1803 +1803 @@
     ssl_ctx = SSL_get_SSL_CTX(ssl_conn);
     shm_zone = SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_session_cache_index);
 
+    if (!shm_zone) {
+        return 0;
+    }
+
     cache = shm_zone->data;
     shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;