/*
  +----------------------------------------------------------------------+
  | Taint                                                                |
  +----------------------------------------------------------------------+
  | Copyright (c) 2012-2015 The PHP Group                                |
  +----------------------------------------------------------------------+
  | This source file is subject to version 3.01 of the PHP license,      |
  | that is bundled with this package in the file LICENSE, and is        |
  | available through the world-wide-web at the following url:           |
  | http://www.php.net/license/3_01.txt                                  |
  | If you did not receive a copy of the PHP license and are unable to   |
  | obtain it through the world-wide-web, please send a note to          |
  | license@php.net so we can mail you a copy immediately.               |
  +----------------------------------------------------------------------+
  | Author:  Xinchen Hui    <laruence@php.net>                           |
  +----------------------------------------------------------------------+
*/

#ifndef PHP_TAINT_H
#define PHP_TAINT_H

extern zend_module_entry taint_module_entry;
#define phpext_taint_ptr &taint_module_entry

#ifdef PHP_WIN32
#define PHP_TAINT_API __declspec(dllexport)
#else
#define PHP_TAINT_API
#endif

#ifdef ZTS
#include "TSRM.h"
#endif

#define PHP_TAINT_VERSION "2.1.1-dev"

/* it's important that make sure 
 * this value is not used by Zend or
 * any other extension agianst string */
#define IS_STR_TAINT_POSSIBLE    (1<<7)

#if PHP_VERSION_ID >= 70000
# if PHP_VERSION_ID >= 70200
#  undef IS_STR_TAINT_POSSIBLE
   /* Coflicts with GC_COLLECTABLE which is introduced in 7.2 */
#  define IS_STR_TAINT_POSSIBLE (1<<6)
# endif
# if PHP_VERSION_ID >=70300
#  define EX_CONSTANT(op) RT_CONSTANT(EX(opline), op)
#  undef IS_STR_TAINT_POSSIBLE
#  define IS_STR_TAINT_POSSIBLE (1<<5) /* GC_PROTECTED */
#  define TAINT_MARK(str)     GC_ADD_FLAGS(str, IS_STR_TAINT_POSSIBLE)
#  define TAINT_POSSIBLE(str) (GC_FLAGS((str)) & IS_STR_TAINT_POSSIBLE)
#  define TAINT_CLEAN(str)    GC_DEL_FLAGS(str, IS_STR_TAINT_POSSIBLE)
# else
#  define TAINT_MARK(str)     (GC_FLAGS((str)) |= IS_STR_TAINT_POSSIBLE)
#  define TAINT_POSSIBLE(str) (GC_FLAGS((str)) & IS_STR_TAINT_POSSIBLE)
#  define TAINT_CLEAN(str)    (GC_FLAGS((str)) &= ~IS_STR_TAINT_POSSIBLE)
# endif
#else
# error "Unsupported PHP Version ID:" PHP_VERSION_ID
#endif

#define TAINT_OP1_TYPE(opline)	(opline->op1_type)
#define TAINT_OP2_TYPE(opline)	(opline->op2_type)

#if PHP_VERSION_ID < 70100
#define TAINT_RET_USED(opline) (!((opline)->result_type & EXT_TYPE_UNUSED))
#define TAINT_ISERR(var)       (var == &EG(error_zval))
#define TAINT_ERR_ZVAL(var)    (var = &EG(error_zval))
#else
#define TAINT_RET_USED(opline) ((opline)->result_type != IS_UNUSED)
#define TAINT_ISERR(var)       (Z_ISERROR_P(var))
#define TAINT_ERR_ZVAL(var)    (ZVAL_ERROR(var))
#endif

typedef zval* taint_free_op;

PHP_MINIT_FUNCTION(taint);
PHP_MSHUTDOWN_FUNCTION(taint);
PHP_RINIT_FUNCTION(taint);
PHP_RSHUTDOWN_FUNCTION(taint);
PHP_MINFO_FUNCTION(taint);

PHP_FUNCTION(taint);
PHP_FUNCTION(untaint);
PHP_FUNCTION(is_tainted);

PHP_FUNCTION(taint_strval);
PHP_FUNCTION(taint_sprintf);
PHP_FUNCTION(taint_vsprintf);
PHP_FUNCTION(taint_explode);
PHP_FUNCTION(taint_implode);
PHP_FUNCTION(taint_trim);
PHP_FUNCTION(taint_rtrim);
PHP_FUNCTION(taint_ltrim);
PHP_FUNCTION(taint_strstr);
PHP_FUNCTION(taint_substr);
PHP_FUNCTION(taint_str_replace);
PHP_FUNCTION(taint_str_ireplace);
PHP_FUNCTION(taint_str_pad);
PHP_FUNCTION(taint_strtolower);
PHP_FUNCTION(taint_strtoupper);
PHP_FUNCTION(taint_dirname);
PHP_FUNCTION(taint_basename);
PHP_FUNCTION(taint_pathinfo);

#if PHP_VERSION_ID >= 70300
typedef zif_handler php_func;
#else
typedef void (*php_func)(INTERNAL_FUNCTION_PARAMETERS);
#endif

ZEND_BEGIN_MODULE_GLOBALS(taint)
	zend_bool enable;
	int       error_level;
ZEND_END_MODULE_GLOBALS(taint)

#ifdef ZTS
#define TAINT_G(v) TSRMG(taint_globals_id, zend_taint_globals *, v)
#else
#define TAINT_G(v) (taint_globals.v)
#endif

#endif	/* PHP_TAINT_H */


/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim600: noet sw=4 ts=4 fdm=marker
 * vim<600: noet sw=4 ts=4
 */