xref: /PHP-5.4/ext/filter/callback_filter.c (revision c0d060f5)
1 /*
2   +----------------------------------------------------------------------+
3   | PHP Version 5                                                        |
4   +----------------------------------------------------------------------+
5   | Copyright (c) 1997-2014 The PHP Group                                |
6   +----------------------------------------------------------------------+
7   | This source file is subject to version 3.01 of the PHP license,      |
8   | that is bundled with this package in the file LICENSE, and is        |
9   | available through the world-wide-web at the following url:           |
10   | http://www.php.net/license/3_01.txt                                  |
11   | If you did not receive a copy of the PHP license and are unable to   |
12   | obtain it through the world-wide-web, please send a note to          |
13   | license@php.net so we can mail you a copy immediately.               |
14   +----------------------------------------------------------------------+
15   | Authors: Derick Rethans <derick@php.net>                             |
16   +----------------------------------------------------------------------+
17 */
18 
19 /* $Id$ */
20 
21 #include "php_filter.h"
22 
php_filter_callback(PHP_INPUT_FILTER_PARAM_DECL)23 void php_filter_callback(PHP_INPUT_FILTER_PARAM_DECL)
24 {
25 	zval *retval_ptr;
26 	zval ***args;
27 	int status;
28 
29 	if (!option_array || !zend_is_callable(option_array, IS_CALLABLE_CHECK_NO_ACCESS, NULL TSRMLS_CC)) {
30 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "First argument is expected to be a valid callback");
31 		zval_dtor(value);
32 		Z_TYPE_P(value) = IS_NULL;
33 		return;
34 	}
35 
36 	args = safe_emalloc(sizeof(zval **), 1, 0);
37 	args[0] = &value;
38 
39 	status = call_user_function_ex(EG(function_table), NULL, option_array, &retval_ptr, 1, args, 0, NULL TSRMLS_CC);
40 
41 	if (status == SUCCESS && retval_ptr != NULL) {
42 		if (retval_ptr != value) {
43 			zval_dtor(value);
44 			COPY_PZVAL_TO_ZVAL(*value, retval_ptr);
45 		} else {
46 			zval_ptr_dtor(&retval_ptr);
47 		}
48 	} else {
49 		zval_dtor(value);
50 		Z_TYPE_P(value) = IS_NULL;
51 	}
52 
53 	efree(args);
54 }
55 
56 /*
57  * Local variables:
58  * tab-width: 4
59  * c-basic-offset: 4
60  * End:
61  * vim600: noet sw=4 ts=4 fdm=marker
62  * vim<600: noet sw=4 ts=4
63  */
64