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php-src/Zend/zend_builtin_functions.c
Nikita Popov f449b04713 Fix some ZTS issues and leaks
2014-04-10 13:50:25 +02:00

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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2014 Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 2.00 of the Zend 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.zend.com/license/2_00.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@zend.com> |
| Zeev Suraski <zeev@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include "zend.h"
#include "zend_API.h"
#include "zend_builtin_functions.h"
#include "zend_constants.h"
#include "zend_ini.h"
#include "zend_exceptions.h"
#include "zend_extensions.h"
#include "zend_closures.h"
#undef ZEND_TEST_EXCEPTIONS
static ZEND_FUNCTION(zend_version);
static ZEND_FUNCTION(func_num_args);
static ZEND_FUNCTION(func_get_arg);
static ZEND_FUNCTION(func_get_args);
static ZEND_FUNCTION(strlen);
static ZEND_FUNCTION(strcmp);
static ZEND_FUNCTION(strncmp);
static ZEND_FUNCTION(strcasecmp);
static ZEND_FUNCTION(strncasecmp);
static ZEND_FUNCTION(each);
static ZEND_FUNCTION(error_reporting);
static ZEND_FUNCTION(define);
static ZEND_FUNCTION(defined);
static ZEND_FUNCTION(get_class);
static ZEND_FUNCTION(get_called_class);
static ZEND_FUNCTION(get_parent_class);
static ZEND_FUNCTION(method_exists);
static ZEND_FUNCTION(property_exists);
static ZEND_FUNCTION(class_exists);
static ZEND_FUNCTION(interface_exists);
static ZEND_FUNCTION(trait_exists);
static ZEND_FUNCTION(function_exists);
static ZEND_FUNCTION(class_alias);
#if ZEND_DEBUG
static ZEND_FUNCTION(leak);
static ZEND_FUNCTION(leak_variable);
#ifdef ZEND_TEST_EXCEPTIONS
static ZEND_FUNCTION(crash);
#endif
#endif
static ZEND_FUNCTION(get_included_files);
static ZEND_FUNCTION(is_subclass_of);
static ZEND_FUNCTION(is_a);
static ZEND_FUNCTION(get_class_vars);
static ZEND_FUNCTION(get_object_vars);
static ZEND_FUNCTION(get_class_methods);
static ZEND_FUNCTION(trigger_error);
static ZEND_FUNCTION(set_error_handler);
static ZEND_FUNCTION(restore_error_handler);
static ZEND_FUNCTION(set_exception_handler);
static ZEND_FUNCTION(restore_exception_handler);
static ZEND_FUNCTION(get_declared_classes);
static ZEND_FUNCTION(get_declared_traits);
static ZEND_FUNCTION(get_declared_interfaces);
static ZEND_FUNCTION(get_defined_functions);
static ZEND_FUNCTION(get_defined_vars);
static ZEND_FUNCTION(create_function);
static ZEND_FUNCTION(get_resource_type);
static ZEND_FUNCTION(get_loaded_extensions);
static ZEND_FUNCTION(extension_loaded);
static ZEND_FUNCTION(get_extension_funcs);
static ZEND_FUNCTION(get_defined_constants);
static ZEND_FUNCTION(debug_backtrace);
static ZEND_FUNCTION(debug_print_backtrace);
#if ZEND_DEBUG
static ZEND_FUNCTION(zend_test_func);
#ifdef ZTS
static ZEND_FUNCTION(zend_thread_id);
#endif
#endif
static ZEND_FUNCTION(gc_collect_cycles);
static ZEND_FUNCTION(gc_enabled);
static ZEND_FUNCTION(gc_enable);
static ZEND_FUNCTION(gc_disable);
/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO(arginfo_zend__void, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_func_get_arg, 0, 0, 1)
ZEND_ARG_INFO(0, arg_num)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_strlen, 0, 0, 1)
ZEND_ARG_INFO(0, str)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_strcmp, 0, 0, 2)
ZEND_ARG_INFO(0, str1)
ZEND_ARG_INFO(0, str2)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_strncmp, 0, 0, 3)
ZEND_ARG_INFO(0, str1)
ZEND_ARG_INFO(0, str2)
ZEND_ARG_INFO(0, len)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_each, 0, 0, 1)
ZEND_ARG_INFO(1, arr)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_error_reporting, 0, 0, 0)
ZEND_ARG_INFO(0, new_error_level)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_define, 0, 0, 3)
ZEND_ARG_INFO(0, constant_name)
ZEND_ARG_INFO(0, value)
ZEND_ARG_INFO(0, case_insensitive)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_defined, 0, 0, 1)
ZEND_ARG_INFO(0, constant_name)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_get_class, 0, 0, 0)
ZEND_ARG_INFO(0, object)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_is_subclass_of, 0, 0, 2)
ZEND_ARG_INFO(0, object)
ZEND_ARG_INFO(0, class_name)
ZEND_ARG_INFO(0, allow_string)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_get_class_vars, 0, 0, 1)
ZEND_ARG_INFO(0, class_name)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_get_object_vars, 0, 0, 1)
ZEND_ARG_INFO(0, obj)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_get_class_methods, 0, 0, 1)
ZEND_ARG_INFO(0, class)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_method_exists, 0, 0, 2)
ZEND_ARG_INFO(0, object)
ZEND_ARG_INFO(0, method)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_property_exists, 0, 0, 2)
ZEND_ARG_INFO(0, object_or_class)
ZEND_ARG_INFO(0, property_name)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_class_exists, 0, 0, 1)
ZEND_ARG_INFO(0, classname)
ZEND_ARG_INFO(0, autoload)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_trait_exists, 0, 0, 1)
ZEND_ARG_INFO(0, traitname)
ZEND_ARG_INFO(0, autoload)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_function_exists, 0, 0, 1)
ZEND_ARG_INFO(0, function_name)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_class_alias, 0, 0, 2)
ZEND_ARG_INFO(0, user_class_name)
ZEND_ARG_INFO(0, alias_name)
ZEND_ARG_INFO(0, autoload)
ZEND_END_ARG_INFO()
#if ZEND_DEBUG
ZEND_BEGIN_ARG_INFO_EX(arginfo_leak_variable, 0, 0, 1)
ZEND_ARG_INFO(0, variable)
ZEND_ARG_INFO(0, leak_data)
ZEND_END_ARG_INFO()
#endif
ZEND_BEGIN_ARG_INFO_EX(arginfo_trigger_error, 0, 0, 1)
ZEND_ARG_INFO(0, message)
ZEND_ARG_INFO(0, error_type)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_set_error_handler, 0, 0, 1)
ZEND_ARG_INFO(0, error_handler)
ZEND_ARG_INFO(0, error_types)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_set_exception_handler, 0, 0, 1)
ZEND_ARG_INFO(0, exception_handler)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_create_function, 0, 0, 2)
ZEND_ARG_INFO(0, args)
ZEND_ARG_INFO(0, code)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_get_resource_type, 0, 0, 1)
ZEND_ARG_INFO(0, res)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_get_loaded_extensions, 0, 0, 0)
ZEND_ARG_INFO(0, zend_extensions)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_get_defined_constants, 0, 0, 0)
ZEND_ARG_INFO(0, categorize)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_debug_backtrace, 0, 0, 0)
ZEND_ARG_INFO(0, options)
ZEND_ARG_INFO(0, limit)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_debug_print_backtrace, 0, 0, 0)
ZEND_ARG_INFO(0, options)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_extension_loaded, 0, 0, 1)
ZEND_ARG_INFO(0, extension_name)
ZEND_END_ARG_INFO()
/* }}} */
static const zend_function_entry builtin_functions[] = { /* {{{ */
ZEND_FE(zend_version, arginfo_zend__void)
ZEND_FE(func_num_args, arginfo_zend__void)
ZEND_FE(func_get_arg, arginfo_func_get_arg)
ZEND_FE(func_get_args, arginfo_zend__void)
ZEND_FE(strlen, arginfo_strlen)
ZEND_FE(strcmp, arginfo_strcmp)
ZEND_FE(strncmp, arginfo_strncmp)
ZEND_FE(strcasecmp, arginfo_strcmp)
ZEND_FE(strncasecmp, arginfo_strncmp)
ZEND_FE(each, arginfo_each)
ZEND_FE(error_reporting, arginfo_error_reporting)
ZEND_FE(define, arginfo_define)
ZEND_FE(defined, arginfo_defined)
ZEND_FE(get_class, arginfo_get_class)
ZEND_FE(get_called_class, arginfo_zend__void)
ZEND_FE(get_parent_class, arginfo_get_class)
ZEND_FE(method_exists, arginfo_method_exists)
ZEND_FE(property_exists, arginfo_property_exists)
ZEND_FE(class_exists, arginfo_class_exists)
ZEND_FE(interface_exists, arginfo_class_exists)
ZEND_FE(trait_exists, arginfo_trait_exists)
ZEND_FE(function_exists, arginfo_function_exists)
ZEND_FE(class_alias, arginfo_class_alias)
#if ZEND_DEBUG
ZEND_FE(leak, NULL)
ZEND_FE(leak_variable, arginfo_leak_variable)
#ifdef ZEND_TEST_EXCEPTIONS
ZEND_FE(crash, NULL)
#endif
#endif
ZEND_FE(get_included_files, arginfo_zend__void)
ZEND_FALIAS(get_required_files, get_included_files, arginfo_zend__void)
ZEND_FE(is_subclass_of, arginfo_is_subclass_of)
ZEND_FE(is_a, arginfo_is_subclass_of)
ZEND_FE(get_class_vars, arginfo_get_class_vars)
ZEND_FE(get_object_vars, arginfo_get_object_vars)
ZEND_FE(get_class_methods, arginfo_get_class_methods)
ZEND_FE(trigger_error, arginfo_trigger_error)
ZEND_FALIAS(user_error, trigger_error, arginfo_trigger_error)
ZEND_FE(set_error_handler, arginfo_set_error_handler)
ZEND_FE(restore_error_handler, arginfo_zend__void)
ZEND_FE(set_exception_handler, arginfo_set_exception_handler)
ZEND_FE(restore_exception_handler, arginfo_zend__void)
ZEND_FE(get_declared_classes, arginfo_zend__void)
ZEND_FE(get_declared_traits, arginfo_zend__void)
ZEND_FE(get_declared_interfaces, arginfo_zend__void)
ZEND_FE(get_defined_functions, arginfo_zend__void)
ZEND_FE(get_defined_vars, arginfo_zend__void)
ZEND_FE(create_function, arginfo_create_function)
ZEND_FE(get_resource_type, arginfo_get_resource_type)
ZEND_FE(get_loaded_extensions, arginfo_get_loaded_extensions)
ZEND_FE(extension_loaded, arginfo_extension_loaded)
ZEND_FE(get_extension_funcs, arginfo_extension_loaded)
ZEND_FE(get_defined_constants, arginfo_get_defined_constants)
ZEND_FE(debug_backtrace, arginfo_debug_backtrace)
ZEND_FE(debug_print_backtrace, arginfo_debug_print_backtrace)
#if ZEND_DEBUG
ZEND_FE(zend_test_func, NULL)
#ifdef ZTS
ZEND_FE(zend_thread_id, NULL)
#endif
#endif
ZEND_FE(gc_collect_cycles, arginfo_zend__void)
ZEND_FE(gc_enabled, arginfo_zend__void)
ZEND_FE(gc_enable, arginfo_zend__void)
ZEND_FE(gc_disable, arginfo_zend__void)
ZEND_FE_END
};
/* }}} */
ZEND_MINIT_FUNCTION(core) { /* {{{ */
zend_class_entry class_entry;
INIT_CLASS_ENTRY(class_entry, "stdClass", NULL);
zend_standard_class_def = zend_register_internal_class(&class_entry TSRMLS_CC);
zend_register_default_classes(TSRMLS_C);
return SUCCESS;
}
/* }}} */
zend_module_entry zend_builtin_module = { /* {{{ */
STANDARD_MODULE_HEADER,
"Core",
builtin_functions,
ZEND_MINIT(core),
NULL,
NULL,
NULL,
NULL,
ZEND_VERSION,
STANDARD_MODULE_PROPERTIES
};
/* }}} */
int zend_startup_builtin_functions(TSRMLS_D) /* {{{ */
{
zend_builtin_module.module_number = 0;
zend_builtin_module.type = MODULE_PERSISTENT;
return (EG(current_module) = zend_register_module_ex(&zend_builtin_module TSRMLS_CC)) == NULL ? FAILURE : SUCCESS;
}
/* }}} */
/* {{{ proto string zend_version(void)
Get the version of the Zend Engine */
ZEND_FUNCTION(zend_version)
{
RETURN_STRINGL(ZEND_VERSION, sizeof(ZEND_VERSION)-1);
}
/* }}} */
/* {{{ proto int gc_collect_cycles(void)
Forces collection of any existing garbage cycles.
Returns number of freed zvals */
ZEND_FUNCTION(gc_collect_cycles)
{
RETURN_LONG(gc_collect_cycles(TSRMLS_C));
}
/* }}} */
/* {{{ proto void gc_enabled(void)
Returns status of the circular reference collector */
ZEND_FUNCTION(gc_enabled)
{
RETURN_BOOL(GC_G(gc_enabled));
}
/* }}} */
/* {{{ proto void gc_enable(void)
Activates the circular reference collector */
ZEND_FUNCTION(gc_enable)
{
zend_string *key = STR_INIT("zend.enable_gc", sizeof("zend.enable_gc")-1, 0);
zend_alter_ini_entry(key, "1", sizeof("1")-1, ZEND_INI_USER, ZEND_INI_STAGE_RUNTIME);
STR_RELEASE(key);
}
/* }}} */
/* {{{ proto void gc_disable(void)
Deactivates the circular reference collector */
ZEND_FUNCTION(gc_disable)
{
zend_string *key = STR_INIT("zend.enable_gc", sizeof("zend.enable_gc")-1, 0);
zend_alter_ini_entry(key, "0", sizeof("0")-1, ZEND_INI_USER, ZEND_INI_STAGE_RUNTIME);
STR_RELEASE(key);
}
/* }}} */
/* {{{ proto int func_num_args(void)
Get the number of arguments that were passed to the function */
ZEND_FUNCTION(func_num_args)
{
zend_execute_data *ex = EG(current_execute_data)->prev_execute_data;
if (ex && ex->function_state.arguments) {
RETURN_LONG(Z_LVAL_P(ex->function_state.arguments));
} else {
zend_error(E_WARNING, "func_num_args(): Called from the global scope - no function context");
RETURN_LONG(-1);
}
}
/* }}} */
/* {{{ proto mixed func_get_arg(int arg_num)
Get the $arg_num'th argument that was passed to the function */
ZEND_FUNCTION(func_get_arg)
{
zval *p;
int arg_count;
zval *arg;
long requested_offset;
zend_execute_data *ex = EG(current_execute_data)->prev_execute_data;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &requested_offset) == FAILURE) {
return;
}
if (requested_offset < 0) {
zend_error(E_WARNING, "func_get_arg(): The argument number should be >= 0");
RETURN_FALSE;
}
if (!ex || !ex->function_state.arguments) {
zend_error(E_WARNING, "func_get_arg(): Called from the global scope - no function context");
RETURN_FALSE;
}
p = ex->function_state.arguments;
arg_count = Z_LVAL_P(p); /* this is the amount of arguments passed to func_get_arg(); */
if (requested_offset >= arg_count) {
zend_error(E_WARNING, "func_get_arg(): Argument %ld not passed to function", requested_offset);
RETURN_FALSE;
}
arg = p-(arg_count-requested_offset);
RETURN_ZVAL_FAST(arg);
}
/* }}} */
/* {{{ proto array func_get_args()
Get an array of the arguments that were passed to the function */
ZEND_FUNCTION(func_get_args)
{
zval *p;
int arg_count;
int i;
zend_execute_data *ex = EG(current_execute_data)->prev_execute_data;
if (!ex || !ex->function_state.arguments) {
zend_error(E_WARNING, "func_get_args(): Called from the global scope - no function context");
RETURN_FALSE;
}
p = ex->function_state.arguments;
arg_count = Z_LVAL_P(p); /* this is the amount of arguments passed to func_get_args(); */
array_init_size(return_value, arg_count);
for (i=0; i<arg_count; i++) {
zval *element, *arg, tmp;
arg = p-(arg_count-i);
if (!Z_ISREF_P(arg)) {
element = arg;
if (Z_REFCOUNTED_P(element)) Z_ADDREF_P(element);
} else {
ZVAL_DUP(&tmp, Z_REFVAL_P(arg));
element = &tmp;
}
zend_hash_next_index_insert(Z_ARRVAL_P(return_value), element);
}
}
/* }}} */
/* {{{ proto int strlen(string str)
Get string length */
ZEND_FUNCTION(strlen)
{
char *s1;
int s1_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &s1, &s1_len) == FAILURE) {
return;
}
RETVAL_LONG(s1_len);
}
/* }}} */
/* {{{ proto int strcmp(string str1, string str2)
Binary safe string comparison */
ZEND_FUNCTION(strcmp)
{
char *s1, *s2;
int s1_len, s2_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss", &s1, &s1_len, &s2, &s2_len) == FAILURE) {
return;
}
RETURN_LONG(zend_binary_strcmp(s1, s1_len, s2, s2_len));
}
/* }}} */
/* {{{ proto int strncmp(string str1, string str2, int len)
Binary safe string comparison */
ZEND_FUNCTION(strncmp)
{
char *s1, *s2;
int s1_len, s2_len;
long len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ssl", &s1, &s1_len, &s2, &s2_len, &len) == FAILURE) {
return;
}
if (len < 0) {
zend_error(E_WARNING, "Length must be greater than or equal to 0");
RETURN_FALSE;
}
RETURN_LONG(zend_binary_strncmp(s1, s1_len, s2, s2_len, len));
}
/* }}} */
/* {{{ proto int strcasecmp(string str1, string str2)
Binary safe case-insensitive string comparison */
ZEND_FUNCTION(strcasecmp)
{
char *s1, *s2;
int s1_len, s2_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss", &s1, &s1_len, &s2, &s2_len) == FAILURE) {
return;
}
RETURN_LONG(zend_binary_strcasecmp(s1, s1_len, s2, s2_len));
}
/* }}} */
/* {{{ proto int strncasecmp(string str1, string str2, int len)
Binary safe string comparison */
ZEND_FUNCTION(strncasecmp)
{
char *s1, *s2;
int s1_len, s2_len;
long len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ssl", &s1, &s1_len, &s2, &s2_len, &len) == FAILURE) {
return;
}
if (len < 0) {
zend_error(E_WARNING, "Length must be greater than or equal to 0");
RETURN_FALSE;
}
RETURN_LONG(zend_binary_strncasecmp(s1, s1_len, s2, s2_len, len));
}
/* }}} */
/* {{{ proto array each(array arr)
Return the currently pointed key..value pair in the passed array, and advance the pointer to the next element */
ZEND_FUNCTION(each)
{
zval *array, *entry, tmp;
ulong num_key;
zval *inserted_pointer;
HashTable *target_hash;
zend_string *key;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &array) == FAILURE) {
return;
}
ZVAL_DEREF_REF(array);
target_hash = HASH_OF(array);
if (!target_hash) {
zend_error(E_WARNING,"Variable passed to each() is not an array or object");
return;
}
while (1) {
entry = zend_hash_get_current_data(target_hash);
if (!entry) {
RETURN_FALSE;
} else if (Z_TYPE_P(entry) == IS_INDIRECT) {
entry = Z_INDIRECT_P(entry);
if (Z_TYPE_P(entry) == IS_UNDEF) {
zend_hash_move_forward(target_hash);
continue;
}
}
break;
}
array_init(return_value);
/* add value elements */
if (Z_ISREF_P(entry)) {
ZVAL_DUP(&tmp, Z_REFVAL_P(entry));
//??? if (Z_REFCOUNTED(tmp)) Z_SET_REFCOUNT(tmp, 0);
entry = &tmp;
}
zend_hash_index_update(Z_ARRVAL_P(return_value), 1, entry);
if (Z_REFCOUNTED_P(entry)) Z_ADDREF_P(entry);
zend_hash_str_update(Z_ARRVAL_P(return_value), "value", sizeof("value")-1, entry);
if (Z_REFCOUNTED_P(entry)) Z_ADDREF_P(entry);
/* add the key elements */
switch (zend_hash_get_current_key(target_hash, &key, &num_key, 0)) {
case HASH_KEY_IS_STRING:
inserted_pointer = add_get_index_str(return_value, 0, STR_COPY(key));
break;
case HASH_KEY_IS_LONG:
inserted_pointer = add_get_index_long(return_value, 0, num_key);
break;
}
zend_hash_str_update(Z_ARRVAL_P(return_value), "key", sizeof("key")-1, inserted_pointer);
if (Z_REFCOUNTED_P(inserted_pointer)) Z_ADDREF_P(inserted_pointer);
zend_hash_move_forward(target_hash);
}
/* }}} */
/* {{{ proto int error_reporting([int new_error_level])
Return the current error_reporting level, and if an argument was passed - change to the new level */
ZEND_FUNCTION(error_reporting)
{
char *err;
int err_len;
int old_error_reporting;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &err, &err_len) == FAILURE) {
return;
}
old_error_reporting = EG(error_reporting);
if(ZEND_NUM_ARGS() != 0) {
zend_string *key = STR_INIT("error_reporting", sizeof("error_reporting")-1, 0);
zend_alter_ini_entry(key, err, err_len, ZEND_INI_USER, ZEND_INI_STAGE_RUNTIME);
STR_RELEASE(key);
}
RETVAL_LONG(old_error_reporting);
}
/* }}} */
/* {{{ proto bool define(string constant_name, mixed value, boolean case_insensitive=false)
Define a new constant */
ZEND_FUNCTION(define)
{
char *name;
int name_len;
zval *val, val_free;
zend_bool non_cs = 0;
int case_sensitive = CONST_CS;
zend_constant c;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sz|b", &name, &name_len, &val, &non_cs) == FAILURE) {
return;
}
if(non_cs) {
case_sensitive = 0;
}
/* class constant, check if there is name and make sure class is valid & exists */
if (zend_memnstr(name, "::", sizeof("::") - 1, name + name_len)) {
zend_error(E_WARNING, "Class constants cannot be defined or redefined");
RETURN_FALSE;
}
ZVAL_UNDEF(&val_free);
repeat:
switch (Z_TYPE_P(val)) {
case IS_LONG:
case IS_DOUBLE:
case IS_STRING:
case IS_BOOL:
case IS_RESOURCE:
case IS_NULL:
break;
case IS_OBJECT:
if (Z_TYPE(val_free) == IS_UNDEF) {
if (Z_OBJ_HT_P(val)->get) {
val = Z_OBJ_HT_P(val)->get(val TSRMLS_CC);
ZVAL_COPY_VALUE(&val_free, val);
goto repeat;
} else if (Z_OBJ_HT_P(val)->cast_object) {
if (Z_OBJ_HT_P(val)->cast_object(val, &val_free, IS_STRING TSRMLS_CC) == SUCCESS) {
val = &val_free;
break;
}
}
}
/* no break */
default:
zend_error(E_WARNING,"Constants may only evaluate to scalar values");
zval_ptr_dtor(&val_free);
RETURN_FALSE;
}
ZVAL_DUP(&c.value, val);
zval_ptr_dtor(&val_free);
c.flags = case_sensitive; /* non persistent */
c.name = STR_INIT(name, name_len, 1);
if(c.name == NULL) {
RETURN_FALSE;
}
c.module_number = PHP_USER_CONSTANT;
if (zend_register_constant(&c TSRMLS_CC) == SUCCESS) {
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto bool defined(string constant_name)
Check whether a constant exists */
ZEND_FUNCTION(defined)
{
char *name;
int name_len;
zval c;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &name, &name_len) == FAILURE) {
return;
}
if (zend_get_constant_ex(name, name_len, &c, NULL, ZEND_FETCH_CLASS_SILENT TSRMLS_CC)) {
zval_dtor(&c);
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto string get_class([object object])
Retrieves the class name */
ZEND_FUNCTION(get_class)
{
zval *obj = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|o!", &obj) == FAILURE) {
RETURN_FALSE;
}
if (!obj) {
if (EG(scope)) {
RETURN_STR(STR_COPY(EG(scope)->name));
} else {
zend_error(E_WARNING, "get_class() called without object from outside a class");
RETURN_FALSE;
}
}
RETURN_STR(zend_get_object_classname(Z_OBJ_P(obj) TSRMLS_CC));
}
/* }}} */
/* {{{ proto string get_called_class()
Retrieves the "Late Static Binding" class name */
ZEND_FUNCTION(get_called_class)
{
if (zend_parse_parameters_none() == FAILURE) {
return;
}
if (EG(called_scope)) {
RETURN_STR(STR_COPY(EG(called_scope)->name));
} else if (!EG(scope)) {
zend_error(E_WARNING, "get_called_class() called from outside a class");
}
RETURN_FALSE;
}
/* }}} */
/* {{{ proto string get_parent_class([mixed object])
Retrieves the parent class name for object or class or current scope. */
ZEND_FUNCTION(get_parent_class)
{
zval *arg;
zend_class_entry *ce = NULL;
zend_string *name;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|z", &arg) == FAILURE) {
return;
}
if (!ZEND_NUM_ARGS()) {
ce = EG(scope);
if (ce && ce->parent) {
RETURN_STR(STR_COPY(ce->parent->name));
} else {
RETURN_FALSE;
}
}
if (Z_TYPE_P(arg) == IS_OBJECT) {
if (Z_OBJ_HT_P(arg)->get_class_name
&& (name = Z_OBJ_HT_P(arg)->get_class_name(Z_OBJ_P(arg), 1 TSRMLS_CC)) != NULL) {
RETURN_STR(name);
} else {
ce = zend_get_class_entry(Z_OBJ_P(arg) TSRMLS_CC);
}
} else if (Z_TYPE_P(arg) == IS_STRING) {
ce = zend_lookup_class(Z_STR_P(arg) TSRMLS_CC);
}
if (ce && ce->parent) {
RETURN_STR(STR_COPY(ce->parent->name));
} else {
RETURN_FALSE;
}
}
/* }}} */
static void is_a_impl(INTERNAL_FUNCTION_PARAMETERS, zend_bool only_subclass)
{
zval *obj;
zend_string *class_name;
zend_class_entry *instance_ce;
zend_class_entry *ce;
zend_bool allow_string = only_subclass;
zend_bool retval;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zS|b", &obj, &class_name, &allow_string) == FAILURE) {
return;
}
/*
* allow_string - is_a default is no, is_subclass_of is yes.
* if it's allowed, then the autoloader will be called if the class does not exist.
* default behaviour is different, as 'is_a' used to be used to test mixed return values
* and there is no easy way to deprecate this.
*/
if (allow_string && Z_TYPE_P(obj) == IS_STRING) {
instance_ce = zend_lookup_class(Z_STR_P(obj) TSRMLS_CC);
if (!instance_ce) {
RETURN_FALSE;
}
} else if (Z_TYPE_P(obj) == IS_OBJECT && HAS_CLASS_ENTRY(*obj)) {
instance_ce = Z_OBJCE_P(obj);
} else {
RETURN_FALSE;
}
ce = zend_lookup_class_ex(class_name, NULL, 0 TSRMLS_CC);
if (!ce) {
retval = 0;
} else {
if (only_subclass && instance_ce == ce) {
retval = 0;
} else {
retval = instanceof_function(instance_ce, ce TSRMLS_CC);
}
}
RETURN_BOOL(retval);
}
/* {{{ proto bool is_subclass_of(mixed object_or_string, string class_name [, bool allow_string=true])
Returns true if the object has this class as one of its parents */
ZEND_FUNCTION(is_subclass_of)
{
is_a_impl(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
/* }}} */
/* {{{ proto bool is_a(mixed object_or_string, string class_name [, bool allow_string=false])
Returns true if the first argument is an object and is this class or has this class as one of its parents, */
ZEND_FUNCTION(is_a)
{
is_a_impl(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
/* }}} */
/* {{{ add_class_vars */
static void add_class_vars(zend_class_entry *ce, int statics, zval *return_value TSRMLS_DC)
{
HashPosition pos;
zend_property_info *prop_info;
zval *prop, prop_copy;
zend_string *key;
ulong num_index;
zend_hash_internal_pointer_reset_ex(&ce->properties_info, &pos);
while ((prop_info = zend_hash_get_current_data_ptr_ex(&ce->properties_info, &pos)) != NULL) {
zend_hash_get_current_key_ex(&ce->properties_info, &key, &num_index, 0, &pos);
zend_hash_move_forward_ex(&ce->properties_info, &pos);
if (((prop_info->flags & ZEND_ACC_SHADOW) &&
prop_info->ce != EG(scope)) ||
((prop_info->flags & ZEND_ACC_PROTECTED) &&
!zend_check_protected(prop_info->ce, EG(scope))) ||
((prop_info->flags & ZEND_ACC_PRIVATE) &&
ce != EG(scope) &&
prop_info->ce != EG(scope))) {
continue;
}
prop = NULL;
if (prop_info->offset >= 0) {
if (statics && (prop_info->flags & ZEND_ACC_STATIC) != 0) {
prop = &ce->default_static_members_table[prop_info->offset];
} else if (!statics && (prop_info->flags & ZEND_ACC_STATIC) == 0) {
prop = &ce->default_properties_table[prop_info->offset];
}
}
if (!prop || Z_TYPE_P(prop) == IS_UNDEF) {
continue;
}
/* copy: enforce read only access */
ZVAL_DUP_DEREF(&prop_copy, prop);
/* this is necessary to make it able to work with default array
* properties, returned to user */
if (Z_CONSTANT(prop_copy)) {
zval_update_constant(&prop_copy, 0 TSRMLS_CC);
}
zend_hash_update(Z_ARRVAL_P(return_value), key, &prop_copy);
}
}
/* }}} */
/* {{{ proto array get_class_vars(string class_name)
Returns an array of default properties of the class. */
ZEND_FUNCTION(get_class_vars)
{
zend_string *class_name;
zend_class_entry *ce;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "S", &class_name) == FAILURE) {
return;
}
ce = zend_lookup_class(class_name TSRMLS_CC);
if (!ce) {
RETURN_FALSE;
} else {
array_init(return_value);
zend_update_class_constants(ce TSRMLS_CC);
add_class_vars(ce, 0, return_value TSRMLS_CC);
add_class_vars(ce, 1, return_value TSRMLS_CC);
}
}
/* }}} */
/* {{{ proto array get_object_vars(object obj)
Returns an array of object properties */
ZEND_FUNCTION(get_object_vars)
{
zval *obj;
zval *value;
HashTable *properties;
HashPosition pos;
zend_string *key;
const char *prop_name, *class_name;
uint prop_len;
ulong num_index;
zend_object *zobj;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "o", &obj) == FAILURE) {
return;
}
if (Z_OBJ_HT_P(obj)->get_properties == NULL) {
RETURN_FALSE;
}
properties = Z_OBJ_HT_P(obj)->get_properties(obj TSRMLS_CC);
if (properties == NULL) {
RETURN_FALSE;
}
zobj = Z_OBJ_P(obj);
array_init(return_value);
zend_hash_internal_pointer_reset_ex(properties, &pos);
while ((value = zend_hash_get_current_data_ex(properties, &pos)) != NULL) {
if (Z_TYPE_P(value) == IS_INDIRECT) {
value = Z_INDIRECT_P(value);
if (Z_TYPE_P(value) == IS_UNDEF) {
zend_hash_move_forward_ex(properties, &pos);
continue;
}
}
if (zend_hash_get_current_key_ex(properties, &key, &num_index, 0, &pos) == HASH_KEY_IS_STRING) {
if (zend_check_property_access(zobj, key TSRMLS_CC) == SUCCESS) {
/* Not separating references */
if (Z_REFCOUNTED_P(value)) Z_ADDREF_P(value);
if (key->val[0] == 0) {
zend_unmangle_property_name_ex(key->val, key->len, &class_name, &prop_name, (int*) &prop_len);
zend_hash_str_update(Z_ARRVAL_P(return_value), prop_name, prop_len, value);
} else {
zend_hash_update(Z_ARRVAL_P(return_value), key, value);
}
}
}
zend_hash_move_forward_ex(properties, &pos);
}
}
/* }}} */
static int same_name(const char *key, const char *name, zend_uint name_len)
{
char *lcname = zend_str_tolower_dup(name, name_len);
int ret = memcmp(lcname, key, name_len) == 0;
efree(lcname);
return ret;
}
/* {{{ proto array get_class_methods(mixed class)
Returns an array of method names for class or class instance. */
ZEND_FUNCTION(get_class_methods)
{
zval *klass;
zval method_name;
zend_class_entry *ce = NULL;
HashPosition pos;
zend_function *mptr;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &klass) == FAILURE) {
return;
}
if (Z_TYPE_P(klass) == IS_OBJECT) {
/* TBI!! new object handlers */
if (!HAS_CLASS_ENTRY(*klass)) {
RETURN_FALSE;
}
ce = Z_OBJCE_P(klass);
} else if (Z_TYPE_P(klass) == IS_STRING) {
ce = zend_lookup_class(Z_STR_P(klass) TSRMLS_CC);
}
if (!ce) {
RETURN_NULL();
}
array_init(return_value);
zend_hash_internal_pointer_reset_ex(&ce->function_table, &pos);
while ((mptr = zend_hash_get_current_data_ptr_ex(&ce->function_table, &pos)) != NULL) {
if ((mptr->common.fn_flags & ZEND_ACC_PUBLIC)
|| (EG(scope) &&
(((mptr->common.fn_flags & ZEND_ACC_PROTECTED) &&
zend_check_protected(mptr->common.scope, EG(scope)))
|| ((mptr->common.fn_flags & ZEND_ACC_PRIVATE) &&
EG(scope) == mptr->common.scope)))) {
zend_string *key;
ulong num_index;
uint len = mptr->common.function_name->len;
/* Do not display old-style inherited constructors */
if (zend_hash_get_current_key_ex(&ce->function_table, &key, &num_index, 0, &pos) != HASH_KEY_IS_STRING) {
ZVAL_STR(&method_name, STR_COPY(mptr->common.function_name));
zend_hash_next_index_insert(Z_ARRVAL_P(return_value), &method_name);
} else if ((mptr->common.fn_flags & ZEND_ACC_CTOR) == 0 ||
mptr->common.scope == ce ||
zend_binary_strcasecmp(key->val, key->len, mptr->common.function_name->val, len) == 0) {
if (mptr->type == ZEND_USER_FUNCTION &&
*mptr->op_array.refcount > 1 &&
(len != key->len ||
!same_name(key->val, mptr->common.function_name->val, len))) {
ZVAL_STR(&method_name, STR_COPY(zend_find_alias_name(mptr->common.scope, key)));
zend_hash_next_index_insert(Z_ARRVAL_P(return_value), &method_name);
} else {
ZVAL_STR(&method_name, STR_COPY(mptr->common.function_name));
zend_hash_next_index_insert(Z_ARRVAL_P(return_value), &method_name);
}
}
}
zend_hash_move_forward_ex(&ce->function_table, &pos);
}
}
/* }}} */
/* {{{ proto bool method_exists(object object, string method)
Checks if the class method exists */
ZEND_FUNCTION(method_exists)
{
zval *klass;
zend_string *method_name;
zend_string *lcname;
zend_class_entry * ce;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zS", &klass, &method_name) == FAILURE) {
return;
}
if (Z_TYPE_P(klass) == IS_OBJECT) {
ce = Z_OBJCE_P(klass);
} else if (Z_TYPE_P(klass) == IS_STRING) {
if ((ce = zend_lookup_class(Z_STR_P(klass) TSRMLS_CC)) == NULL) {
RETURN_FALSE;
}
} else {
RETURN_FALSE;
}
lcname = STR_ALLOC(method_name->len, 0);
zend_str_tolower_copy(lcname->val, method_name->val, method_name->len);
if (zend_hash_exists(&ce->function_table, lcname)) {
STR_FREE(lcname);
RETURN_TRUE;
} else {
union _zend_function *func = NULL;
if (Z_TYPE_P(klass) == IS_OBJECT
&& Z_OBJ_HT_P(klass)->get_method != NULL
&& (func = Z_OBJ_HT_P(klass)->get_method(&Z_OBJ_P(klass), method_name, NULL TSRMLS_CC)) != NULL
) {
if (func->type == ZEND_INTERNAL_FUNCTION
&& (func->common.fn_flags & ZEND_ACC_CALL_VIA_HANDLER) != 0
) {
/* Returns true to the fake Closure's __invoke */
RETVAL_BOOL((func->common.scope == zend_ce_closure
&& (method_name->len == sizeof(ZEND_INVOKE_FUNC_NAME)-1)
&& memcmp(lcname->val, ZEND_INVOKE_FUNC_NAME, sizeof(ZEND_INVOKE_FUNC_NAME)-1) == 0) ? 1 : 0);
STR_FREE(lcname);
STR_RELEASE(func->common.function_name);
efree(func);
return;
}
efree(lcname);
RETURN_TRUE;
}
}
efree(lcname);
RETURN_FALSE;
}
/* }}} */
/* {{{ proto bool property_exists(mixed object_or_class, string property_name)
Checks if the object or class has a property */
ZEND_FUNCTION(property_exists)
{
zval *object;
zend_string *property;
zend_class_entry *ce;
zend_property_info *property_info;
zval property_z;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zS", &object, &property) == FAILURE) {
return;
}
if (property == NULL) {
RETURN_FALSE;
}
if (Z_TYPE_P(object) == IS_STRING) {
ce = zend_lookup_class(Z_STR_P(object) TSRMLS_CC);
if (!ce) {
RETURN_FALSE;
}
} else if (Z_TYPE_P(object) == IS_OBJECT) {
ce = Z_OBJCE_P(object);
} else {
zend_error(E_WARNING, "First parameter must either be an object or the name of an existing class");
RETURN_NULL();
}
if ((property_info = zend_hash_find_ptr(&ce->properties_info, property)) != NULL
&& (property_info->flags & ZEND_ACC_SHADOW) == 0) {
RETURN_TRUE;
}
ZVAL_STR(&property_z, property);
if (Z_TYPE_P(object) == IS_OBJECT &&
Z_OBJ_HANDLER_P(object, has_property) &&
Z_OBJ_HANDLER_P(object, has_property)(object, &property_z, 2, 0 TSRMLS_CC)) {
RETURN_TRUE;
}
RETURN_FALSE;
}
/* }}} */
/* {{{ proto bool class_exists(string classname [, bool autoload])
Checks if the class exists */
ZEND_FUNCTION(class_exists)
{
zend_string *class_name;
zend_string *lc_name;
zend_class_entry *ce;
zend_bool autoload = 1;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "S|b", &class_name, &autoload) == FAILURE) {
return;
}
if (!autoload) {
if (class_name->val[0] == '\\') {
/* Ignore leading "\" */
lc_name = STR_ALLOC(class_name->len - 1, 0);
zend_str_tolower_copy(lc_name->val, class_name->val + 1, class_name->len - 1);
} else {
lc_name = STR_ALLOC(class_name->len, 0);
zend_str_tolower_copy(lc_name->val, class_name->val, class_name->len);
}
ce = zend_hash_find_ptr(EG(class_table), lc_name);
STR_FREE(lc_name);
RETURN_BOOL(ce && !((ce->ce_flags & (ZEND_ACC_INTERFACE | ZEND_ACC_TRAIT)) > ZEND_ACC_EXPLICIT_ABSTRACT_CLASS));
}
ce = zend_lookup_class(class_name TSRMLS_CC);
if (ce) {
RETURN_BOOL((ce->ce_flags & (ZEND_ACC_INTERFACE | (ZEND_ACC_TRAIT - ZEND_ACC_EXPLICIT_ABSTRACT_CLASS))) == 0);
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto bool interface_exists(string classname [, bool autoload])
Checks if the class exists */
ZEND_FUNCTION(interface_exists)
{
zend_string *iface_name, *lc_name;
zend_class_entry *ce;
zend_bool autoload = 1;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "S|b", &iface_name, &autoload) == FAILURE) {
return;
}
if (!autoload) {
if (iface_name->val[0] == '\\') {
/* Ignore leading "\" */
lc_name = STR_ALLOC(iface_name->len - 1, 0);
zend_str_tolower_copy(lc_name->val, iface_name->val + 1, iface_name->len - 1);
} else {
lc_name = STR_ALLOC(iface_name->len, 0);
zend_str_tolower_copy(lc_name->val, iface_name->val, iface_name->len);
}
ce = zend_hash_find_ptr(EG(class_table), lc_name);
STR_FREE(lc_name);
RETURN_BOOL(ce && ce->ce_flags & ZEND_ACC_INTERFACE);
}
ce = zend_lookup_class(iface_name TSRMLS_CC);
if (ce) {
RETURN_BOOL((ce->ce_flags & ZEND_ACC_INTERFACE) > 0);
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto bool trait_exists(string traitname [, bool autoload])
Checks if the trait exists */
ZEND_FUNCTION(trait_exists)
{
zend_string *trait_name, *lc_name;
zend_class_entry *ce;
zend_bool autoload = 1;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "S|b", &trait_name, &autoload) == FAILURE) {
return;
}
if (!autoload) {
if (trait_name->val[0] == '\\') {
/* Ignore leading "\" */
lc_name = STR_ALLOC(trait_name->len - 1, 0);
zend_str_tolower_copy(lc_name->val, trait_name->val + 1, trait_name->len - 1);
} else {
lc_name = STR_ALLOC(trait_name->len, 0);
zend_str_tolower_copy(lc_name->val, trait_name->val, trait_name->len);
}
ce = zend_hash_find_ptr(EG(class_table), lc_name);
STR_FREE(lc_name);
RETURN_BOOL(ce && ((ce->ce_flags & ZEND_ACC_TRAIT) > ZEND_ACC_EXPLICIT_ABSTRACT_CLASS));
}
ce = zend_lookup_class(trait_name TSRMLS_CC);
if (ce) {
RETURN_BOOL((ce->ce_flags & ZEND_ACC_TRAIT) > ZEND_ACC_EXPLICIT_ABSTRACT_CLASS);
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto bool function_exists(string function_name)
Checks if the function exists */
ZEND_FUNCTION(function_exists)
{
char *name;
int name_len;
zend_function *func;
zend_string *lcname;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &name, &name_len) == FAILURE) {
return;
}
if (name[0] == '\\') {
/* Ignore leading "\" */
lcname = STR_ALLOC(name_len - 1, 0);
zend_str_tolower_copy(lcname->val, name + 1, name_len - 1);
} else {
lcname = STR_ALLOC(name_len, 0);
zend_str_tolower_copy(lcname->val, name, name_len);
}
func = zend_hash_find_ptr(EG(function_table), lcname);
STR_FREE(lcname);
/*
* A bit of a hack, but not a bad one: we see if the handler of the function
* is actually one that displays "function is disabled" message.
*/
RETURN_BOOL(func && (func->type != ZEND_INTERNAL_FUNCTION ||
func->internal_function.handler != zif_display_disabled_function));
}
/* }}} */
/* {{{ proto bool class_alias(string user_class_name , string alias_name [, bool autoload])
Creates an alias for user defined class */
ZEND_FUNCTION(class_alias)
{
zend_string *class_name;
char *alias_name;
zend_class_entry *ce;
int alias_name_len;
zend_bool autoload = 1;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Ss|b", &class_name, &alias_name, &alias_name_len, &autoload) == FAILURE) {
return;
}
ce = zend_lookup_class_ex(class_name, NULL, autoload TSRMLS_CC);
if (ce) {
if (ce->type == ZEND_USER_CLASS) {
if (zend_register_class_alias_ex(alias_name, alias_name_len, ce TSRMLS_CC) == SUCCESS) {
RETURN_TRUE;
} else {
zend_error(E_WARNING, "Cannot redeclare class %s", alias_name);
RETURN_FALSE;
}
} else {
zend_error(E_WARNING, "First argument of class_alias() must be a name of user defined class");
RETURN_FALSE;
}
} else {
zend_error(E_WARNING, "Class '%s' not found", class_name->val);
RETURN_FALSE;
}
}
/* }}} */
#if ZEND_DEBUG
/* {{{ proto void leak(int num_bytes=3)
Cause an intentional memory leak, for testing/debugging purposes */
ZEND_FUNCTION(leak)
{
long leakbytes=3;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &leakbytes) == FAILURE) {
return;
}
emalloc(leakbytes);
}
/* }}} */
/* {{{ proto leak_variable(mixed variable [, bool leak_data]) */
ZEND_FUNCTION(leak_variable)
{
zval *zv;
zend_bool leak_data = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|b", &zv, &leak_data) == FAILURE) {
return;
}
if (!leak_data) {
Z_ADDREF_P(zv);
} else if (Z_TYPE_P(zv) == IS_RESOURCE) {
Z_ADDREF_P(zv);
} else if (Z_TYPE_P(zv) == IS_OBJECT) {
Z_ADDREF_P(zv);
} else {
zend_error(E_WARNING, "Leaking non-zval data is only applicable to resources and objects");
}
}
/* }}} */
#ifdef ZEND_TEST_EXCEPTIONS
ZEND_FUNCTION(crash)
{
char *nowhere=NULL;
memcpy(nowhere, "something", sizeof("something"));
}
#endif
#endif /* ZEND_DEBUG */
/* {{{ proto array get_included_files(void)
Returns an array with the file names that were include_once()'d */
ZEND_FUNCTION(get_included_files)
{
zend_string *entry;
if (zend_parse_parameters_none() == FAILURE) {
return;
}
array_init(return_value);
zend_hash_internal_pointer_reset(&EG(included_files));
while (zend_hash_get_current_key(&EG(included_files), &entry, NULL, 0) == HASH_KEY_IS_STRING) {
add_next_index_str(return_value, STR_COPY(entry));
zend_hash_move_forward(&EG(included_files));
}
}
/* }}} */
/* {{{ proto void trigger_error(string message [, int error_type])
Generates a user-level error/warning/notice message */
ZEND_FUNCTION(trigger_error)
{
long error_type = E_USER_NOTICE;
char *message;
int message_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|l", &message, &message_len, &error_type) == FAILURE) {
return;
}
switch (error_type) {
case E_USER_ERROR:
case E_USER_WARNING:
case E_USER_NOTICE:
case E_USER_DEPRECATED:
break;
default:
zend_error(E_WARNING, "Invalid error type specified");
RETURN_FALSE;
break;
}
zend_error((int)error_type, "%s", message);
RETURN_TRUE;
}
/* }}} */
/* {{{ proto string set_error_handler(string error_handler [, int error_types])
Sets a user-defined error handler function. Returns the previously defined error handler, or false on error */
ZEND_FUNCTION(set_error_handler)
{
zval *error_handler;
zend_string *error_handler_name = NULL;
long error_type = E_ALL;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|l", &error_handler, &error_type) == FAILURE) {
return;
}
if (Z_TYPE_P(error_handler) != IS_NULL) { /* NULL == unset */
if (!zend_is_callable(error_handler, 0, &error_handler_name TSRMLS_CC)) {
zend_error(E_WARNING, "%s() expects the argument (%s) to be a valid callback",
get_active_function_name(TSRMLS_C), error_handler_name?error_handler_name->val:"unknown");
STR_RELEASE(error_handler_name);
return;
}
STR_RELEASE(error_handler_name);
}
if (Z_TYPE(EG(user_error_handler)) != IS_UNDEF) {
RETVAL_ZVAL(&EG(user_error_handler), 1, 0);
zend_stack_push(&EG(user_error_handlers_error_reporting), &EG(user_error_handler_error_reporting), sizeof(EG(user_error_handler_error_reporting)));
zend_stack_push(&EG(user_error_handlers), &EG(user_error_handler), sizeof(zval));
}
if (Z_TYPE_P(error_handler) == IS_NULL) { /* unset user-defined handler */
ZVAL_UNDEF(&EG(user_error_handler));
return;
}
ZVAL_DUP(&EG(user_error_handler), error_handler);
EG(user_error_handler_error_reporting) = (int)error_type;
}
/* }}} */
/* {{{ proto void restore_error_handler(void)
Restores the previously defined error handler function */
ZEND_FUNCTION(restore_error_handler)
{
if (Z_TYPE(EG(user_error_handler)) != IS_UNDEF) {
zval zeh;
ZVAL_COPY_VALUE(&zeh, &EG(user_error_handler));
ZVAL_UNDEF(&EG(user_error_handler));
zval_ptr_dtor(&zeh);
}
if (zend_stack_is_empty(&EG(user_error_handlers))) {
ZVAL_UNDEF(&EG(user_error_handler));
} else {
zval *tmp;
EG(user_error_handler_error_reporting) = zend_stack_int_top(&EG(user_error_handlers_error_reporting));
zend_stack_del_top(&EG(user_error_handlers_error_reporting));
zend_stack_top(&EG(user_error_handlers), (void**)&tmp);
ZVAL_COPY_VALUE(&EG(user_error_handler), tmp);
zend_stack_del_top(&EG(user_error_handlers));
}
RETURN_TRUE;
}
/* }}} */
/* {{{ proto string set_exception_handler(callable exception_handler)
Sets a user-defined exception handler function. Returns the previously defined exception handler, or false on error */
ZEND_FUNCTION(set_exception_handler)
{
zval *exception_handler;
zend_string *exception_handler_name = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &exception_handler) == FAILURE) {
return;
}
if (Z_TYPE_P(exception_handler) != IS_NULL) { /* NULL == unset */
if (!zend_is_callable(exception_handler, 0, &exception_handler_name TSRMLS_CC)) {
zend_error(E_WARNING, "%s() expects the argument (%s) to be a valid callback",
get_active_function_name(TSRMLS_C), exception_handler_name?exception_handler_name->val:"unknown");
STR_RELEASE(exception_handler_name);
return;
}
STR_RELEASE(exception_handler_name);
}
if (Z_TYPE(EG(user_exception_handler)) != IS_UNDEF) {
RETVAL_ZVAL(&EG(user_exception_handler), 1, 0);
zend_stack_push(&EG(user_exception_handlers), &EG(user_exception_handler), sizeof(zval));
}
if (Z_TYPE_P(exception_handler) == IS_NULL) { /* unset user-defined handler */
ZVAL_UNDEF(&EG(user_exception_handler));
return;
}
ZVAL_DUP(&EG(user_exception_handler), exception_handler);
}
/* }}} */
/* {{{ proto void restore_exception_handler(void)
Restores the previously defined exception handler function */
ZEND_FUNCTION(restore_exception_handler)
{
if (Z_TYPE(EG(user_exception_handler)) != IS_UNDEF) {
zval_ptr_dtor(&EG(user_exception_handler));
}
if (zend_stack_is_empty(&EG(user_exception_handlers))) {
ZVAL_UNDEF(&EG(user_exception_handler));
} else {
zval *tmp;
zend_stack_top(&EG(user_exception_handlers), (void**)&tmp);
ZVAL_COPY_VALUE(&EG(user_exception_handler), tmp);
zend_stack_del_top(&EG(user_exception_handlers));
}
RETURN_TRUE;
}
/* }}} */
static int copy_class_or_interface_name(zend_class_entry **pce TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key)
{
zval *array = va_arg(args, zval *);
zend_uint mask = va_arg(args, zend_uint);
zend_uint comply = va_arg(args, zend_uint);
zend_uint comply_mask = (comply)? mask:0;
zend_class_entry *ce = *pce;
if ((hash_key->key && hash_key->key->val[0] != 0)
&& (comply_mask == (ce->ce_flags & mask))) {
if (ce->refcount > 1 &&
(ce->name->len != hash_key->key->len - 1 ||
!same_name(hash_key->key->val, ce->name->val, ce->name->len))) {
add_next_index_str(array, STR_COPY(hash_key->key));
} else {
add_next_index_str(array, STR_COPY(ce->name));
}
}
return ZEND_HASH_APPLY_KEEP;
}
/* {{{ proto array get_declared_traits()
Returns an array of all declared traits. */
ZEND_FUNCTION(get_declared_traits)
{
zend_uint mask = ZEND_ACC_TRAIT;
zend_uint comply = 1;
if (zend_parse_parameters_none() == FAILURE) {
return;
}
array_init(return_value);
zend_hash_apply_with_arguments(EG(class_table) TSRMLS_CC, (apply_func_args_t) copy_class_or_interface_name, 3, return_value, mask, comply);
}
/* }}} */
/* {{{ proto array get_declared_classes()
Returns an array of all declared classes. */
ZEND_FUNCTION(get_declared_classes)
{
zend_uint mask = ZEND_ACC_INTERFACE | (ZEND_ACC_TRAIT & ~ZEND_ACC_EXPLICIT_ABSTRACT_CLASS);
zend_uint comply = 0;
if (zend_parse_parameters_none() == FAILURE) {
return;
}
array_init(return_value);
zend_hash_apply_with_arguments(EG(class_table) TSRMLS_CC, (apply_func_args_t) copy_class_or_interface_name, 3, return_value, mask, comply);
}
/* }}} */
/* {{{ proto array get_declared_interfaces()
Returns an array of all declared interfaces. */
ZEND_FUNCTION(get_declared_interfaces)
{
zend_uint mask = ZEND_ACC_INTERFACE;
zend_uint comply = 1;
if (zend_parse_parameters_none() == FAILURE) {
return;
}
array_init(return_value);
zend_hash_apply_with_arguments(EG(class_table) TSRMLS_CC, (apply_func_args_t) copy_class_or_interface_name, 3, return_value, mask, comply);
}
/* }}} */
static int copy_function_name(zval *zv TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key)
{
zend_function *func = Z_PTR_P(zv);
zval *internal_ar = va_arg(args, zval *),
*user_ar = va_arg(args, zval *);
if (hash_key->key == NULL || hash_key->key->val[0] == 0) {
return 0;
}
if (func->type == ZEND_INTERNAL_FUNCTION) {
add_next_index_str(internal_ar, STR_COPY(hash_key->key));
} else if (func->type == ZEND_USER_FUNCTION) {
add_next_index_str(user_ar, STR_COPY(hash_key->key));
}
return 0;
}
/* {{{ proto array get_defined_functions(void)
Returns an array of all defined functions */
ZEND_FUNCTION(get_defined_functions)
{
zval internal, user, *ret;
if (zend_parse_parameters_none() == FAILURE) {
return;
}
array_init(&internal);
array_init(&user);
array_init(return_value);
zend_hash_apply_with_arguments(EG(function_table) TSRMLS_CC, (apply_func_args_t) copy_function_name, 2, &internal, &user);
ret = zend_hash_str_add(Z_ARRVAL_P(return_value), "internal", sizeof("internal")-1, &internal);
if (!ret) {
zval_ptr_dtor(&internal);
zval_ptr_dtor(&user);
zval_dtor(return_value);
zend_error(E_WARNING, "Cannot add internal functions to return value from get_defined_functions()");
RETURN_FALSE;
}
ret = zend_hash_str_add(Z_ARRVAL_P(return_value), "user", sizeof("user")-1, &user);
if (!ret) {
zval_ptr_dtor(&user);
zval_dtor(return_value);
zend_error(E_WARNING, "Cannot add user functions to return value from get_defined_functions()");
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto array get_defined_vars(void)
Returns an associative array of names and values of all currently defined variable names (variables in the current scope) */
ZEND_FUNCTION(get_defined_vars)
{
if (!EG(active_symbol_table)) {
zend_rebuild_symbol_table(TSRMLS_C);
}
array_init_size(return_value, zend_hash_num_elements(&EG(active_symbol_table)->ht));
zend_hash_copy(Z_ARRVAL_P(return_value), &EG(active_symbol_table)->ht, zval_add_ref);
}
/* }}} */
#define LAMBDA_TEMP_FUNCNAME "__lambda_func"
/* {{{ proto string create_function(string args, string code)
Creates an anonymous function, and returns its name (funny, eh?) */
ZEND_FUNCTION(create_function)
{
zend_string *function_name;
char *eval_code, *function_args, *function_code;
int eval_code_length, function_args_len, function_code_len;
int retval;
char *eval_name;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss", &function_args, &function_args_len, &function_code, &function_code_len) == FAILURE) {
return;
}
eval_code = (char *) emalloc(sizeof("function " LAMBDA_TEMP_FUNCNAME)
+function_args_len
+2 /* for the args parentheses */
+2 /* for the curly braces */
+function_code_len);
eval_code_length = sizeof("function " LAMBDA_TEMP_FUNCNAME "(") - 1;
memcpy(eval_code, "function " LAMBDA_TEMP_FUNCNAME "(", eval_code_length);
memcpy(eval_code + eval_code_length, function_args, function_args_len);
eval_code_length += function_args_len;
eval_code[eval_code_length++] = ')';
eval_code[eval_code_length++] = '{';
memcpy(eval_code + eval_code_length, function_code, function_code_len);
eval_code_length += function_code_len;
eval_code[eval_code_length++] = '}';
eval_code[eval_code_length] = '\0';
eval_name = zend_make_compiled_string_description("runtime-created function" TSRMLS_CC);
retval = zend_eval_stringl(eval_code, eval_code_length, NULL, eval_name TSRMLS_CC);
efree(eval_code);
efree(eval_name);
if (retval==SUCCESS) {
zend_op_array *new_function, *func;
func = zend_hash_str_find_ptr(EG(function_table), LAMBDA_TEMP_FUNCNAME, sizeof(LAMBDA_TEMP_FUNCNAME)-1);
if (!func) {
zend_error(E_ERROR, "Unexpected inconsistency in create_function()");
RETURN_FALSE;
}
new_function = emalloc(sizeof(zend_op_array));
memcpy(new_function, func, sizeof(zend_op_array));
function_add_ref((zend_function*)new_function);
function_name = STR_ALLOC(sizeof("0lambda_")+MAX_LENGTH_OF_LONG, 0);
function_name->val[0] = '\0';
do {
function_name->len = snprintf(function_name->val + 1, sizeof("lambda_")+MAX_LENGTH_OF_LONG, "lambda_%d", ++EG(lambda_count)) + 1;
} while (zend_hash_add_ptr(EG(function_table), function_name, new_function) == NULL);
zend_hash_str_del(EG(function_table), LAMBDA_TEMP_FUNCNAME, sizeof(LAMBDA_TEMP_FUNCNAME)-1);
RETURN_STR(function_name);
} else {
zend_hash_str_del(EG(function_table), LAMBDA_TEMP_FUNCNAME, sizeof(LAMBDA_TEMP_FUNCNAME)-1);
RETURN_FALSE;
}
}
/* }}} */
#if ZEND_DEBUG
ZEND_FUNCTION(zend_test_func)
{
zval *arg1, *arg2;
zend_get_parameters(ZEND_NUM_ARGS(), 2, &arg1, &arg2);
}
#ifdef ZTS
ZEND_FUNCTION(zend_thread_id)
{
RETURN_LONG((long)tsrm_thread_id());
}
#endif
#endif
/* {{{ proto string get_resource_type(resource res)
Get the resource type name for a given resource */
ZEND_FUNCTION(get_resource_type)
{
const char *resource_type;
zval *z_resource_type;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &z_resource_type) == FAILURE) {
return;
}
resource_type = zend_rsrc_list_get_rsrc_type(Z_RES_P(z_resource_type) TSRMLS_CC);
if (resource_type) {
RETURN_STRING(resource_type);
} else {
RETURN_STRING("Unknown");
}
}
/* }}} */
static int add_extension_info(zval *item, void *arg TSRMLS_DC)
{
zval *name_array = (zval *)arg;
zend_module_entry *module = (zend_module_entry*)Z_PTR_P(item);
add_next_index_string(name_array, module->name, 1);
return 0;
}
static int add_zendext_info(zend_extension *ext, void *arg TSRMLS_DC)
{
zval *name_array = (zval *)arg;
add_next_index_string(name_array, ext->name, 1);
return 0;
}
static int add_constant_info(zval *item, void *arg TSRMLS_DC)
{
zval *name_array = (zval *)arg;
zend_constant *constant = (zend_constant*)Z_PTR_P(item);
zval const_val;
if (!constant->name) {
/* skip special constants */
return 0;
}
ZVAL_DUP(&const_val, &constant->value);
zend_hash_update(Z_ARRVAL_P(name_array), constant->name, &const_val);
return 0;
}
/* {{{ proto array get_loaded_extensions([bool zend_extensions]) U
Return an array containing names of loaded extensions */
ZEND_FUNCTION(get_loaded_extensions)
{
zend_bool zendext = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|b", &zendext) == FAILURE) {
return;
}
array_init(return_value);
if (zendext) {
zend_llist_apply_with_argument(&zend_extensions, (llist_apply_with_arg_func_t)add_zendext_info, return_value TSRMLS_CC);
} else {
zend_hash_apply_with_argument(&module_registry, (apply_func_arg_t)add_extension_info, return_value TSRMLS_CC);
}
}
/* }}} */
/* {{{ proto array get_defined_constants([bool categorize])
Return an array containing the names and values of all defined constants */
ZEND_FUNCTION(get_defined_constants)
{
zend_bool categorize = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|b", &categorize) == FAILURE) {
return;
}
array_init(return_value);
if (categorize) {
HashPosition pos;
zend_constant *val;
int module_number;
zval *modules;
char **module_names;
zend_module_entry *module;
int i = 1;
modules = ecalloc(zend_hash_num_elements(&module_registry) + 2, sizeof(zval));
module_names = emalloc((zend_hash_num_elements(&module_registry) + 2) * sizeof(char *));
module_names[0] = "internal";
zend_hash_internal_pointer_reset_ex(&module_registry, &pos);
while ((module = zend_hash_get_current_data_ptr_ex(&module_registry, &pos)) != NULL) {
module_names[module->module_number] = (char *)module->name;
i++;
zend_hash_move_forward_ex(&module_registry, &pos);
}
module_names[i] = "user";
zend_hash_internal_pointer_reset_ex(EG(zend_constants), &pos);
while ((val = zend_hash_get_current_data_ptr_ex(EG(zend_constants), &pos)) != NULL) {
zval const_val;
if (!val->name) {
/* skip special constants */
goto next_constant;
}
if (val->module_number == PHP_USER_CONSTANT) {
module_number = i;
} else if (val->module_number > i || val->module_number < 0) {
/* should not happen */
goto next_constant;
} else {
module_number = val->module_number;
}
if (Z_TYPE(modules[module_number]) == IS_UNDEF) {
array_init(&modules[module_number]);
add_assoc_zval(return_value, module_names[module_number], &modules[module_number]);
}
ZVAL_DUP_DEREF(&const_val, &val->value);
zend_hash_update(Z_ARRVAL(modules[module_number]), val->name, &const_val);
next_constant:
zend_hash_move_forward_ex(EG(zend_constants), &pos);
}
efree(module_names);
efree(modules);
} else {
zend_hash_apply_with_argument(EG(zend_constants), (apply_func_arg_t)add_constant_info, return_value TSRMLS_CC);
}
}
/* }}} */
static void debug_backtrace_get_args(zval *curpos, zval *arg_array TSRMLS_DC)
{
zval *p = curpos;
zval *arg;
int arg_count = Z_LVAL_P(p);
array_init_size(arg_array, arg_count);
p -= arg_count;
while (--arg_count >= 0) {
arg = p++;
if (arg) {
//??? if (Z_TYPE_P(arg) != IS_OBJECT) {
//??? SEPARATE_ZVAL_TO_MAKE_IS_REF(arg);
//??? }
if (Z_REFCOUNTED_P(arg)) Z_ADDREF_P(arg);
add_next_index_zval(arg_array, arg);
} else {
add_next_index_null(arg_array);
}
}
}
void debug_print_backtrace_args(zval *arg_array TSRMLS_DC)
{
zval *tmp;
HashPosition iterator;
int i = 0;
zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(arg_array), &iterator);
while ((tmp = zend_hash_get_current_data_ex(Z_ARRVAL_P(arg_array), &iterator)) != NULL) {
if (i++) {
ZEND_PUTS(", ");
}
zend_print_flat_zval_r(tmp TSRMLS_CC);
zend_hash_move_forward_ex(Z_ARRVAL_P(arg_array), &iterator);
}
}
/* {{{ proto void debug_print_backtrace([int options[, int limit]]) */
ZEND_FUNCTION(debug_print_backtrace)
{
zend_execute_data *ptr, *skip;
int lineno, frameno = 0;
const char *function_name;
const char *filename;
zend_string *class_name = NULL;
char *call_type;
const char *include_filename = NULL;
zval arg_array;
int indent = 0;
long options = 0;
long limit = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|ll", &options, &limit) == FAILURE) {
return;
}
ZVAL_UNDEF(&arg_array);
ptr = EG(current_execute_data);
/* skip debug_backtrace() */
ptr = ptr->prev_execute_data;
while (ptr && (limit == 0 || frameno < limit)) {
frameno++;
class_name = NULL;
call_type = NULL;
ZVAL_UNDEF(&arg_array);
skip = ptr;
/* skip internal handler */
if (!skip->op_array &&
skip->prev_execute_data &&
skip->prev_execute_data->opline &&
skip->prev_execute_data->opline->opcode != ZEND_DO_FCALL &&
skip->prev_execute_data->opline->opcode != ZEND_DO_FCALL_BY_NAME &&
skip->prev_execute_data->opline->opcode != ZEND_INCLUDE_OR_EVAL) {
skip = skip->prev_execute_data;
}
if (skip->op_array) {
filename = skip->op_array->filename->val;
lineno = skip->opline->lineno;
} else {
filename = NULL;
lineno = 0;
}
function_name = (ptr->function_state.function->common.scope &&
ptr->function_state.function->common.scope->trait_aliases) ?
zend_resolve_method_name(
ptr->object ?
zend_get_class_entry(ptr->object TSRMLS_CC) :
ptr->function_state.function->common.scope,
ptr->function_state.function)->val :
(ptr->function_state.function->common.function_name ?
ptr->function_state.function->common.function_name->val :
NULL);
if (function_name) {
if (ptr->object) {
if (ptr->function_state.function->common.scope) {
class_name = ptr->function_state.function->common.scope->name;
} else {
class_name = zend_get_object_classname(ptr->object TSRMLS_CC);
}
call_type = "->";
} else if (ptr->function_state.function->common.scope) {
class_name = ptr->function_state.function->common.scope->name;
call_type = "::";
} else {
class_name = NULL;
call_type = NULL;
}
if ((! ptr->opline) || ((ptr->opline->opcode == ZEND_DO_FCALL_BY_NAME) || (ptr->opline->opcode == ZEND_DO_FCALL))) {
if (ptr->function_state.arguments && (options & DEBUG_BACKTRACE_IGNORE_ARGS) == 0) {
debug_backtrace_get_args(ptr->function_state.arguments, &arg_array TSRMLS_CC);
}
}
} else {
/* i know this is kinda ugly, but i'm trying to avoid extra cycles in the main execution loop */
zend_bool build_filename_arg = 1;
if (!ptr->opline || ptr->opline->opcode != ZEND_INCLUDE_OR_EVAL) {
/* can happen when calling eval from a custom sapi */
function_name = "unknown";
build_filename_arg = 0;
} else
switch (ptr->opline->extended_value) {
case ZEND_EVAL:
function_name = "eval";
build_filename_arg = 0;
break;
case ZEND_INCLUDE:
function_name = "include";
break;
case ZEND_REQUIRE:
function_name = "require";
break;
case ZEND_INCLUDE_ONCE:
function_name = "include_once";
break;
case ZEND_REQUIRE_ONCE:
function_name = "require_once";
break;
default:
/* this can actually happen if you use debug_backtrace() in your error_handler and
* you're in the top-scope */
function_name = "unknown";
build_filename_arg = 0;
break;
}
if (build_filename_arg && include_filename) {
array_init(&arg_array);
add_next_index_string(&arg_array, (char*)include_filename, 1);
}
call_type = NULL;
}
zend_printf("#%-2d ", indent);
if (class_name) {
ZEND_PUTS(class_name->val);
ZEND_PUTS(call_type);
}
zend_printf("%s(", function_name);
if (Z_TYPE(arg_array) != IS_UNDEF) {
debug_print_backtrace_args(&arg_array TSRMLS_CC);
zval_ptr_dtor(&arg_array);
}
if (filename) {
zend_printf(") called at [%s:%d]\n", filename, lineno);
} else {
zend_execute_data *prev = skip->prev_execute_data;
while (prev) {
if (prev->function_state.function &&
prev->function_state.function->common.type != ZEND_USER_FUNCTION) {
prev = NULL;
break;
}
if (prev->op_array) {
zend_printf(") called at [%s:%d]\n", prev->op_array->filename->val, prev->opline->lineno);
break;
}
prev = prev->prev_execute_data;
}
if (!prev) {
ZEND_PUTS(")\n");
}
}
include_filename = filename;
ptr = skip->prev_execute_data;
++indent;
}
}
/* }}} */
ZEND_API void zend_fetch_debug_backtrace(zval *return_value, int skip_last, int options, int limit TSRMLS_DC)
{
zend_execute_data *ptr, *skip;
int lineno, frameno = 0;
const char *function_name;
const char *filename;
zend_string *class_name;
const char *include_filename = NULL;
zval stack_frame;
ptr = EG(current_execute_data);
/* skip "new Exception()" */
if (ptr && (skip_last == 0) && ptr->opline && (ptr->opline->opcode == ZEND_NEW)) {
ptr = ptr->prev_execute_data;
}
/* skip debug_backtrace() */
if (skip_last-- && ptr) {
ptr = ptr->prev_execute_data;
}
array_init(return_value);
while (ptr && (limit == 0 || frameno < limit)) {
frameno++;
array_init(&stack_frame);
skip = ptr;
/* skip internal handler */
if (!skip->op_array &&
skip->prev_execute_data &&
skip->prev_execute_data->opline &&
skip->prev_execute_data->opline->opcode != ZEND_DO_FCALL &&
skip->prev_execute_data->opline->opcode != ZEND_DO_FCALL_BY_NAME &&
skip->prev_execute_data->opline->opcode != ZEND_INCLUDE_OR_EVAL) {
skip = skip->prev_execute_data;
}
if (skip->op_array) {
filename = skip->op_array->filename->val;
lineno = skip->opline->lineno;
add_assoc_string_ex(&stack_frame, "file", sizeof("file")-1, (char*)filename, 1);
add_assoc_long_ex(&stack_frame, "line", sizeof("line")-1, lineno);
/* try to fetch args only if an FCALL was just made - elsewise we're in the middle of a function
* and debug_baktrace() might have been called by the error_handler. in this case we don't
* want to pop anything of the argument-stack */
} else {
zend_execute_data *prev = skip->prev_execute_data;
while (prev) {
if (prev->function_state.function &&
prev->function_state.function->common.type != ZEND_USER_FUNCTION &&
!(prev->function_state.function->common.type == ZEND_INTERNAL_FUNCTION &&
(prev->function_state.function->common.fn_flags & ZEND_ACC_CALL_VIA_HANDLER))) {
break;
}
if (prev->op_array) {
add_assoc_str_ex(&stack_frame, "file", sizeof("file")-1, STR_COPY(prev->op_array->filename));
add_assoc_long_ex(&stack_frame, "line", sizeof("line")-1, prev->opline->lineno);
break;
}
prev = prev->prev_execute_data;
}
filename = NULL;
}
function_name = (ptr->function_state.function->common.scope &&
ptr->function_state.function->common.scope->trait_aliases) ?
zend_resolve_method_name(
ptr->object ?
zend_get_class_entry(ptr->object TSRMLS_CC) :
ptr->function_state.function->common.scope,
ptr->function_state.function)->val :
(ptr->function_state.function->common.function_name ?
ptr->function_state.function->common.function_name->val :
NULL);
if (function_name) {
add_assoc_string_ex(&stack_frame, "function", sizeof("function")-1, (char*)function_name, 1);
if (ptr->object) {
if (ptr->function_state.function->common.scope) {
add_assoc_str_ex(&stack_frame, "class", sizeof("class")-1, STR_COPY(ptr->function_state.function->common.scope->name));
} else {
class_name = zend_get_object_classname(ptr->object TSRMLS_CC);
add_assoc_str_ex(&stack_frame, "class", sizeof("class")-1, STR_COPY(class_name));
}
if ((options & DEBUG_BACKTRACE_PROVIDE_OBJECT) != 0) {
zval object;
ZVAL_OBJ(&object, ptr->object);
add_assoc_zval_ex(&stack_frame, "object", sizeof("object")-1, &object);
Z_ADDREF(object);
}
add_assoc_string_ex(&stack_frame, "type", sizeof("type")-1, "->", 1);
} else if (ptr->function_state.function->common.scope) {
add_assoc_str_ex(&stack_frame, "class", sizeof("class")-1, STR_COPY(ptr->function_state.function->common.scope->name));
add_assoc_string_ex(&stack_frame, "type", sizeof("type")-1, "::", 1);
}
if ((options & DEBUG_BACKTRACE_IGNORE_ARGS) == 0 &&
((! ptr->opline) || ((ptr->opline->opcode == ZEND_DO_FCALL_BY_NAME) || (ptr->opline->opcode == ZEND_DO_FCALL)))) {
if (ptr->function_state.arguments) {
zval args;
debug_backtrace_get_args(ptr->function_state.arguments, &args TSRMLS_CC);
add_assoc_zval_ex(&stack_frame, "args", sizeof("args")-1, &args);
}
}
} else {
/* i know this is kinda ugly, but i'm trying to avoid extra cycles in the main execution loop */
zend_bool build_filename_arg = 1;
if (!ptr->opline || ptr->opline->opcode != ZEND_INCLUDE_OR_EVAL) {
/* can happen when calling eval from a custom sapi */
function_name = "unknown";
build_filename_arg = 0;
} else
switch (ptr->opline->extended_value) {
case ZEND_EVAL:
function_name = "eval";
build_filename_arg = 0;
break;
case ZEND_INCLUDE:
function_name = "include";
break;
case ZEND_REQUIRE:
function_name = "require";
break;
case ZEND_INCLUDE_ONCE:
function_name = "include_once";
break;
case ZEND_REQUIRE_ONCE:
function_name = "require_once";
break;
default:
/* this can actually happen if you use debug_backtrace() in your error_handler and
* you're in the top-scope */
function_name = "unknown";
build_filename_arg = 0;
break;
}
if (build_filename_arg && include_filename) {
zval arg_array;
array_init(&arg_array);
/* include_filename always points to the last filename of the last last called-function.
if we have called include in the frame above - this is the file we have included.
*/
add_next_index_string(&arg_array, (char*)include_filename, 1);
add_assoc_zval_ex(&stack_frame, "args", sizeof("args")-1, &arg_array);
}
add_assoc_string_ex(&stack_frame, "function", sizeof("function")-1, (char*)function_name, 1);
}
add_next_index_zval(return_value, &stack_frame);
include_filename = filename;
ptr = skip->prev_execute_data;
}
}
/* }}} */
/* {{{ proto array debug_backtrace([int options[, int limit]])
Return backtrace as array */
ZEND_FUNCTION(debug_backtrace)
{
long options = DEBUG_BACKTRACE_PROVIDE_OBJECT;
long limit = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|ll", &options, &limit) == FAILURE) {
return;
}
zend_fetch_debug_backtrace(return_value, 1, options, limit TSRMLS_CC);
}
/* }}} */
/* {{{ proto bool extension_loaded(string extension_name)
Returns true if the named extension is loaded */
ZEND_FUNCTION(extension_loaded)
{
char *extension_name;
int extension_name_len;
zend_string *lcname;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &extension_name, &extension_name_len) == FAILURE) {
return;
}
lcname = STR_ALLOC(extension_name_len, 0);
zend_str_tolower_copy(lcname->val, extension_name, extension_name_len);
if (zend_hash_exists(&module_registry, lcname)) {
RETVAL_TRUE;
} else {
RETVAL_FALSE;
}
STR_FREE(lcname);
}
/* }}} */
/* {{{ proto array get_extension_funcs(string extension_name)
Returns an array with the names of functions belonging to the named extension */
ZEND_FUNCTION(get_extension_funcs)
{
char *extension_name;
zend_string *lcname;
int extension_name_len, array;
zend_module_entry *module;
HashPosition iterator;
zend_function *zif;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &extension_name, &extension_name_len) == FAILURE) {
return;
}
if (strncasecmp(extension_name, "zend", sizeof("zend"))) {
lcname = STR_ALLOC(extension_name_len, 0);
zend_str_tolower_copy(lcname->val, extension_name, extension_name_len);
} else {
lcname = STR_INIT("core", sizeof("core")-1, 0);
}
module = zend_hash_find_ptr(&module_registry, lcname);
STR_FREE(lcname);
if (!module) {
RETURN_FALSE;
}
zend_hash_internal_pointer_reset_ex(CG(function_table), &iterator);
if (module->functions) {
/* avoid BC break, if functions list is empty, will return an empty array */
array_init(return_value);
array = 1;
} else {
array = 0;
}
while ((zif = zend_hash_get_current_data_ptr_ex(CG(function_table), &iterator)) != NULL) {
if (zif->common.type == ZEND_INTERNAL_FUNCTION
&& zif->internal_function.module == module) {
if (!array) {
array_init(return_value);
array = 1;
}
add_next_index_str(return_value, STR_COPY(zif->common.function_name));
}
zend_hash_move_forward_ex(CG(function_table), &iterator);
}
if (!array) {
RETURN_FALSE;
}
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*/
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