use SSL_free to free openssl data

Author: avida

ngx_http_upstream_check_module.c

@@ -1270,7 +1270,7 @@ ngx_http_upstream_check_connect_handler(ngx_event_t *event) {
     c->sendfile = 0;
     c->read->log = c->log;
     c->write->log = c->log;
-    c->pool = ngx_create_pool(ngx_pagesize, ngx_cycle->log);
+    c->pool = ngx_create_pool(NGX_CYCLE_POOL_SIZE, ngx_cycle->log);
 #if (NGX_HTTP_SSL)
     if (is_https_check_type && rc == NGX_AGAIN) {
         c->write->handler = ngx_http_upstream_do_ssl_handshake;
@@ -1299,10 +1299,7 @@ static void free_SSL_data(ngx_http_upstream_check_peer_t *peer) {
     ngx_connection_t *c = peer->pc.connection;
     if (is_https_check(peer) &&
             c->ssl) {
-        ngx_ssl_free_buffer(c);
-        c->ssl->no_wait_shutdown = 1;
-        c->ssl->no_send_shutdown = 1;
-        ngx_ssl_shutdown(c);
+        SSL_free(c->ssl->connection);
         c->ssl = NULL;
     }
 }
@@ -1315,7 +1312,7 @@ static void ngx_http_upstream_do_ssl_handshake(ngx_event_t *event) {
     c = event->data;
     peer = c -> data;
     ucscf = peer->conf;
-    rc = ngx_ssl_create_connection(&ucscf->ssl, c, NGX_SSL_CLIENT);
+    rc = ngx_ssl_create_connection(&ucscf->ssl, c, NGX_SSL_BUFFER|NGX_SSL_CLIENT);
     if (rc != NGX_OK) {
         return;
     }