--- embedaddon/php/ext/pdo_mysql/pdo_mysql.c	2012/02/21 23:47:59	1.1.1.1
+++ embedaddon/php/ext/pdo_mysql/pdo_mysql.c	2012/05/29 12:34:41	1.1.1.2
@@ -17,7 +17,7 @@
   +----------------------------------------------------------------------+
 */
 
-/* $Id: pdo_mysql.c,v 1.1.1.1 2012/02/21 23:47:59 misho Exp $ */
+/* $Id: pdo_mysql.c,v 1.1.1.2 2012/05/29 12:34:41 misho Exp $ */
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
@@ -57,6 +57,30 @@ ZEND_DECLARE_MODULE_GLOBALS(pdo_mysql);
 # endif
 #endif
 
+#ifdef PDO_USE_MYSQLND
+#include "ext/mysqlnd/mysqlnd_reverse_api.h"
+static MYSQLND * pdo_mysql_convert_zv_to_mysqlnd(zval * zv TSRMLS_DC)
+{
+	if (Z_TYPE_P(zv) == IS_OBJECT && Z_OBJCE_P(zv) == php_pdo_get_dbh_ce()) {
+		pdo_dbh_t * dbh = zend_object_store_get_object(zv TSRMLS_CC);
+
+		if (!dbh || dbh->driver != &pdo_mysql_driver) {
+			php_error_docref(NULL TSRMLS_CC, E_WARNING, "Provided PDO instance is not using MySQL but %s", dbh->driver->driver_name);
+			return NULL;
+		}
+
+		return ((pdo_mysql_db_handle *)dbh->driver_data)->server;
+	}
+	return NULL;
+}
+
+static MYSQLND_REVERSE_API pdo_mysql_reverse_api = {
+	&pdo_mysql_module_entry,
+	pdo_mysql_convert_zv_to_mysqlnd
+};
+#endif
+
+
 /* {{{ PHP_INI_BEGIN
 */
 PHP_INI_BEGIN()
@@ -84,8 +108,8 @@ static PHP_MINIT_FUNCTION(pdo_mysql)
 	REGISTER_PDO_CLASS_CONST_LONG("MYSQL_ATTR_MAX_BUFFER_SIZE", (long)PDO_MYSQL_ATTR_MAX_BUFFER_SIZE);
 	REGISTER_PDO_CLASS_CONST_LONG("MYSQL_ATTR_READ_DEFAULT_FILE", (long)PDO_MYSQL_ATTR_READ_DEFAULT_FILE);
 	REGISTER_PDO_CLASS_CONST_LONG("MYSQL_ATTR_READ_DEFAULT_GROUP", (long)PDO_MYSQL_ATTR_READ_DEFAULT_GROUP);
-	REGISTER_PDO_CLASS_CONST_LONG("MYSQL_ATTR_COMPRESS", (long)PDO_MYSQL_ATTR_COMPRESS);
 #endif
+	REGISTER_PDO_CLASS_CONST_LONG("MYSQL_ATTR_COMPRESS", (long)PDO_MYSQL_ATTR_COMPRESS);
 	REGISTER_PDO_CLASS_CONST_LONG("MYSQL_ATTR_DIRECT_QUERY", (long)PDO_MYSQL_ATTR_DIRECT_QUERY);
 	REGISTER_PDO_CLASS_CONST_LONG("MYSQL_ATTR_FOUND_ROWS", (long)PDO_MYSQL_ATTR_FOUND_ROWS);
 	REGISTER_PDO_CLASS_CONST_LONG("MYSQL_ATTR_IGNORE_SPACE", (long)PDO_MYSQL_ATTR_IGNORE_SPACE);
@@ -94,6 +118,11 @@ static PHP_MINIT_FUNCTION(pdo_mysql)
 	REGISTER_PDO_CLASS_CONST_LONG("MYSQL_ATTR_SSL_CA", (long)PDO_MYSQL_ATTR_SSL_CA);
 	REGISTER_PDO_CLASS_CONST_LONG("MYSQL_ATTR_SSL_CAPATH", (long)PDO_MYSQL_ATTR_SSL_CAPATH);
 	REGISTER_PDO_CLASS_CONST_LONG("MYSQL_ATTR_SSL_CIPHER", (long)PDO_MYSQL_ATTR_SSL_CIPHER);
+
+#ifdef PDO_USE_MYSQLND
+	mysqlnd_reverse_api_register_api(&pdo_mysql_reverse_api TSRMLS_CC);
+#endif
+
 	return php_pdo_register_driver(&pdo_mysql_driver);
 }
 /* }}} */