xref: /php-src/Zend/zend_API.c (revision 8e6d8cf1)
1 /*
2    +----------------------------------------------------------------------+
3    | Zend Engine                                                          |
4    +----------------------------------------------------------------------+
5    | Copyright (c) Zend Technologies Ltd. (http://www.zend.com)           |
6    +----------------------------------------------------------------------+
7    | This source file is subject to version 2.00 of the Zend 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.zend.com/license/2_00.txt.                                |
11    | If you did not receive a copy of the Zend license and are unable to  |
12    | obtain it through the world-wide-web, please send a note to          |
13    | license@zend.com so we can mail you a copy immediately.              |
14    +----------------------------------------------------------------------+
15    | Authors: Andi Gutmans <andi@php.net>                                 |
16    |          Zeev Suraski <zeev@php.net>                                 |
17    |          Andrei Zmievski <andrei@php.net>                            |
18    |          Dmitry Stogov <dmitry@php.net>                              |
19    +----------------------------------------------------------------------+
20 */
21 
22 #include "zend.h"
23 #include "zend_execute.h"
24 #include "zend_API.h"
25 #include "zend_modules.h"
26 #include "zend_extensions.h"
27 #include "zend_constants.h"
28 #include "zend_interfaces.h"
29 #include "zend_exceptions.h"
30 #include "zend_closures.h"
31 #include "zend_inheritance.h"
32 #include "zend_ini.h"
33 #include "zend_enum.h"
34 #include "zend_object_handlers.h"
35 #include "zend_observer.h"
36 
37 #include <stdarg.h>
38 
39 /* these variables are true statics/globals, and have to be mutex'ed on every access */
40 ZEND_API HashTable module_registry;
41 
42 static zend_module_entry **module_request_startup_handlers;
43 static zend_module_entry **module_request_shutdown_handlers;
44 static zend_module_entry **module_post_deactivate_handlers;
45 static zend_module_entry **modules_dl_loaded;
46 
47 static zend_class_entry  **class_cleanup_handlers;
48 
zend_get_parameters_array_ex(uint32_t param_count,zval * argument_array)49 ZEND_API zend_result zend_get_parameters_array_ex(uint32_t param_count, zval *argument_array) /* {{{ */
50 {
51 	zval *param_ptr;
52 	uint32_t arg_count;
53 
54 	param_ptr = ZEND_CALL_ARG(EG(current_execute_data), 1);
55 	arg_count = ZEND_CALL_NUM_ARGS(EG(current_execute_data));
56 
57 	if (param_count>arg_count) {
58 		return FAILURE;
59 	}
60 
61 	while (param_count-->0) {
62 		ZVAL_COPY_VALUE(argument_array, param_ptr);
63 		argument_array++;
64 		param_ptr++;
65 	}
66 
67 	return SUCCESS;
68 }
69 /* }}} */
70 
zend_copy_parameters_array(uint32_t param_count,zval * argument_array)71 ZEND_API zend_result zend_copy_parameters_array(uint32_t param_count, zval *argument_array) /* {{{ */
72 {
73 	zval *param_ptr;
74 	uint32_t arg_count;
75 
76 	param_ptr = ZEND_CALL_ARG(EG(current_execute_data), 1);
77 	arg_count = ZEND_CALL_NUM_ARGS(EG(current_execute_data));
78 
79 	if (param_count>arg_count) {
80 		return FAILURE;
81 	}
82 
83 	while (param_count-->0) {
84 		Z_TRY_ADDREF_P(param_ptr);
85 		zend_hash_next_index_insert_new(Z_ARRVAL_P(argument_array), param_ptr);
86 		param_ptr++;
87 	}
88 
89 	return SUCCESS;
90 }
91 /* }}} */
92 
zend_wrong_param_count(void)93 ZEND_API ZEND_COLD void zend_wrong_param_count(void) /* {{{ */
94 {
95 	const char *space;
96 	const char *class_name = get_active_class_name(&space);
97 
98 	zend_argument_count_error("Wrong parameter count for %s%s%s()", class_name, space, get_active_function_name());
99 }
100 /* }}} */
101 
zend_wrong_property_read(zval * object,zval * property)102 ZEND_API ZEND_COLD void zend_wrong_property_read(zval *object, zval *property)
103 {
104 	zend_string *tmp_property_name;
105 	zend_string *property_name = zval_get_tmp_string(property, &tmp_property_name);
106 	zend_error(E_WARNING, "Attempt to read property \"%s\" on %s", ZSTR_VAL(property_name), zend_zval_value_name(object));
107 	zend_tmp_string_release(tmp_property_name);
108 }
109 
110 /* Argument parsing API -- andrei */
zend_get_type_by_const(int type)111 ZEND_API const char *zend_get_type_by_const(int type) /* {{{ */
112 {
113 	switch(type) {
114 		case IS_FALSE:
115 		case IS_TRUE:
116 		case _IS_BOOL:
117 			return "bool";
118 		case IS_LONG:
119 			return "int";
120 		case IS_DOUBLE:
121 			return "float";
122 		case IS_STRING:
123 			return "string";
124 		case IS_OBJECT:
125 			return "object";
126 		case IS_RESOURCE:
127 			return "resource";
128 		case IS_NULL:
129 			return "null";
130 		case IS_CALLABLE:
131 			return "callable";
132 		case IS_ITERABLE:
133 			return "iterable";
134 		case IS_ARRAY:
135 			return "array";
136 		case IS_VOID:
137 			return "void";
138 		case IS_MIXED:
139 			return "mixed";
140 		case _IS_NUMBER:
141 			return "int|float";
142 		EMPTY_SWITCH_DEFAULT_CASE()
143 	}
144 }
145 /* }}} */
146 
zend_zval_value_name(const zval * arg)147 ZEND_API const char *zend_zval_value_name(const zval *arg)
148 {
149 	ZVAL_DEREF(arg);
150 
151 	if (Z_ISUNDEF_P(arg)) {
152 		return "null";
153 	}
154 
155 	if (Z_TYPE_P(arg) == IS_OBJECT) {
156 		return ZSTR_VAL(Z_OBJCE_P(arg)->name);
157 	} else if (Z_TYPE_P(arg) == IS_FALSE) {
158 		return "false";
159 	} else if  (Z_TYPE_P(arg) == IS_TRUE) {
160 		return "true";
161 	}
162 
163 	return zend_get_type_by_const(Z_TYPE_P(arg));
164 }
165 
zend_zval_type_name(const zval * arg)166 ZEND_API const char *zend_zval_type_name(const zval *arg)
167 {
168 	ZVAL_DEREF(arg);
169 
170 	if (Z_ISUNDEF_P(arg)) {
171 		return "null";
172 	}
173 
174 	if (Z_TYPE_P(arg) == IS_OBJECT) {
175 		return ZSTR_VAL(Z_OBJCE_P(arg)->name);
176 	}
177 
178 	return zend_get_type_by_const(Z_TYPE_P(arg));
179 }
180 
181 /* This API exists *only* for use in gettype().
182  * For anything else, you likely want zend_zval_type_name(). */
zend_zval_get_legacy_type(const zval * arg)183 ZEND_API zend_string *zend_zval_get_legacy_type(const zval *arg) /* {{{ */
184 {
185 	switch (Z_TYPE_P(arg)) {
186 		case IS_NULL:
187 			return ZSTR_KNOWN(ZEND_STR_NULL);
188 		case IS_FALSE:
189 		case IS_TRUE:
190 			return ZSTR_KNOWN(ZEND_STR_BOOLEAN);
191 		case IS_LONG:
192 			return ZSTR_KNOWN(ZEND_STR_INTEGER);
193 		case IS_DOUBLE:
194 			return ZSTR_KNOWN(ZEND_STR_DOUBLE);
195 		case IS_STRING:
196 			return ZSTR_KNOWN(ZEND_STR_STRING);
197 		case IS_ARRAY:
198 			return ZSTR_KNOWN(ZEND_STR_ARRAY);
199 		case IS_OBJECT:
200 			return ZSTR_KNOWN(ZEND_STR_OBJECT);
201 		case IS_RESOURCE:
202 			if (zend_rsrc_list_get_rsrc_type(Z_RES_P(arg))) {
203 				return ZSTR_KNOWN(ZEND_STR_RESOURCE);
204 			} else {
205 				return ZSTR_KNOWN(ZEND_STR_CLOSED_RESOURCE);
206 			}
207 		default:
208 			return NULL;
209 	}
210 }
211 /* }}} */
212 
zend_wrong_parameters_none_error(void)213 ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameters_none_error(void) /* {{{ */
214 {
215 	int num_args = ZEND_CALL_NUM_ARGS(EG(current_execute_data));
216 	zend_string *func_name = get_active_function_or_method_name();
217 
218 	zend_argument_count_error("%s() expects exactly 0 arguments, %d given", ZSTR_VAL(func_name), num_args);
219 
220 	zend_string_release(func_name);
221 }
222 /* }}} */
223 
zend_wrong_parameters_count_error(uint32_t min_num_args,uint32_t max_num_args)224 ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameters_count_error(uint32_t min_num_args, uint32_t max_num_args) /* {{{ */
225 {
226 	uint32_t num_args = ZEND_CALL_NUM_ARGS(EG(current_execute_data));
227 	zend_string *func_name = get_active_function_or_method_name();
228 
229 	zend_argument_count_error(
230 		"%s() expects %s %d argument%s, %d given",
231 		ZSTR_VAL(func_name),
232 		min_num_args == max_num_args ? "exactly" : num_args < min_num_args ? "at least" : "at most",
233 		num_args < min_num_args ? min_num_args : max_num_args,
234 		(num_args < min_num_args ? min_num_args : max_num_args) == 1 ? "" : "s",
235 		num_args
236 	);
237 
238 	zend_string_release(func_name);
239 }
240 /* }}} */
241 
zend_wrong_parameter_error(int error_code,uint32_t num,char * name,zend_expected_type expected_type,zval * arg)242 ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_error(int error_code, uint32_t num, char *name, zend_expected_type expected_type, zval *arg) /* {{{ */
243 {
244 	switch (error_code) {
245 		case ZPP_ERROR_WRONG_CALLBACK:
246 			zend_wrong_callback_error(num, name);
247 			break;
248 		case ZPP_ERROR_WRONG_CALLBACK_OR_NULL:
249 			zend_wrong_callback_or_null_error(num, name);
250 			break;
251 		case ZPP_ERROR_WRONG_CLASS:
252 			zend_wrong_parameter_class_error(num, name, arg);
253 			break;
254 		case ZPP_ERROR_WRONG_CLASS_OR_NULL:
255 			zend_wrong_parameter_class_or_null_error(num, name, arg);
256 			break;
257 		case ZPP_ERROR_WRONG_CLASS_OR_STRING:
258 			zend_wrong_parameter_class_or_string_error(num, name, arg);
259 			break;
260 		case ZPP_ERROR_WRONG_CLASS_OR_STRING_OR_NULL:
261 			zend_wrong_parameter_class_or_string_or_null_error(num, name, arg);
262 			break;
263 		case ZPP_ERROR_WRONG_CLASS_OR_LONG:
264 			zend_wrong_parameter_class_or_long_error(num, name, arg);
265 			break;
266 		case ZPP_ERROR_WRONG_CLASS_OR_LONG_OR_NULL:
267 			zend_wrong_parameter_class_or_long_or_null_error(num, name, arg);
268 			break;
269 		case ZPP_ERROR_WRONG_ARG:
270 			zend_wrong_parameter_type_error(num, expected_type, arg);
271 			break;
272 		case ZPP_ERROR_UNEXPECTED_EXTRA_NAMED:
273 			zend_unexpected_extra_named_error();
274 			break;
275 		case ZPP_ERROR_FAILURE:
276 			ZEND_ASSERT(EG(exception) && "Should have produced an error already");
277 			break;
278 		EMPTY_SWITCH_DEFAULT_CASE()
279 	}
280 }
281 /* }}} */
282 
zend_wrong_parameter_type_error(uint32_t num,zend_expected_type expected_type,zval * arg)283 ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_type_error(uint32_t num, zend_expected_type expected_type, zval *arg) /* {{{ */
284 {
285 	static const char * const expected_error[] = {
286 		Z_EXPECTED_TYPES(Z_EXPECTED_TYPE_STR)
287 		NULL
288 	};
289 
290 	if (EG(exception)) {
291 		return;
292 	}
293 
294 	if ((expected_type == Z_EXPECTED_PATH || expected_type == Z_EXPECTED_PATH_OR_NULL)
295 			&& Z_TYPE_P(arg) == IS_STRING) {
296 		zend_argument_value_error(num, "must not contain any null bytes");
297 		return;
298 	}
299 
300 	zend_argument_type_error(num, "must be %s, %s given", expected_error[expected_type], zend_zval_value_name(arg));
301 }
302 /* }}} */
303 
zend_wrong_parameter_class_error(uint32_t num,const char * name,zval * arg)304 ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_error(uint32_t num, const char *name, zval *arg) /* {{{ */
305 {
306 	if (EG(exception)) {
307 		return;
308 	}
309 
310 	zend_argument_type_error(num, "must be of type %s, %s given", name, zend_zval_value_name(arg));
311 }
312 /* }}} */
313 
zend_wrong_parameter_class_or_null_error(uint32_t num,const char * name,zval * arg)314 ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_null_error(uint32_t num, const char *name, zval *arg) /* {{{ */
315 {
316 	if (EG(exception)) {
317 		return;
318 	}
319 
320 	zend_argument_type_error(num, "must be of type ?%s, %s given", name, zend_zval_value_name(arg));
321 }
322 /* }}} */
323 
zend_wrong_parameter_class_or_long_error(uint32_t num,const char * name,zval * arg)324 ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_long_error(uint32_t num, const char *name, zval *arg) /* {{{ */
325 {
326 	if (EG(exception)) {
327 		return;
328 	}
329 
330 	zend_argument_type_error(num, "must be of type %s|int, %s given", name, zend_zval_value_name(arg));
331 }
332 /* }}} */
333 
zend_wrong_parameter_class_or_long_or_null_error(uint32_t num,const char * name,zval * arg)334 ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_long_or_null_error(uint32_t num, const char *name, zval *arg) /* {{{ */
335 {
336 	if (EG(exception)) {
337 		return;
338 	}
339 
340 	zend_argument_type_error(num, "must be of type %s|int|null, %s given", name, zend_zval_value_name(arg));
341 }
342 /* }}} */
343 
zend_wrong_parameter_class_or_string_error(uint32_t num,const char * name,zval * arg)344 ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_string_error(uint32_t num, const char *name, zval *arg) /* {{{ */
345 {
346 	if (EG(exception)) {
347 		return;
348 	}
349 
350 	zend_argument_type_error(num, "must be of type %s|string, %s given", name, zend_zval_value_name(arg));
351 }
352 /* }}} */
353 
zend_wrong_parameter_class_or_string_or_null_error(uint32_t num,const char * name,zval * arg)354 ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_string_or_null_error(uint32_t num, const char *name, zval *arg) /* {{{ */
355 {
356 	if (EG(exception)) {
357 		return;
358 	}
359 
360 	zend_argument_type_error(num, "must be of type %s|string|null, %s given", name, zend_zval_value_name(arg));
361 }
362 /* }}} */
363 
zend_wrong_callback_error(uint32_t num,char * error)364 ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_callback_error(uint32_t num, char *error) /* {{{ */
365 {
366 	if (!EG(exception)) {
367 		zend_argument_type_error(num, "must be a valid callback, %s", error);
368 	}
369 	efree(error);
370 }
371 /* }}} */
372 
zend_wrong_callback_or_null_error(uint32_t num,char * error)373 ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_callback_or_null_error(uint32_t num, char *error) /* {{{ */
374 {
375 	if (!EG(exception)) {
376 		zend_argument_type_error(num, "must be a valid callback or null, %s", error);
377 	}
378 	efree(error);
379 }
380 /* }}} */
381 
zend_unexpected_extra_named_error(void)382 ZEND_API ZEND_COLD void ZEND_FASTCALL zend_unexpected_extra_named_error(void)
383 {
384 	const char *space;
385 	const char *class_name = get_active_class_name(&space);
386 	zend_argument_count_error("%s%s%s() does not accept unknown named parameters",
387 		class_name, space, get_active_function_name());
388 }
389 
zend_argument_error_variadic(zend_class_entry * error_ce,uint32_t arg_num,const char * format,va_list va)390 ZEND_API ZEND_COLD void ZEND_FASTCALL zend_argument_error_variadic(zend_class_entry *error_ce, uint32_t arg_num, const char *format, va_list va) /* {{{ */
391 {
392 	zend_string *func_name;
393 	const char *arg_name;
394 	char *message = NULL;
395 	if (EG(exception)) {
396 		return;
397 	}
398 
399 	func_name = get_active_function_or_method_name();
400 	arg_name = get_active_function_arg_name(arg_num);
401 
402 	zend_vspprintf(&message, 0, format, va);
403 	zend_throw_error(error_ce, "%s(): Argument #%d%s%s%s %s",
404 		ZSTR_VAL(func_name), arg_num,
405 		arg_name ? " ($" : "", arg_name ? arg_name : "", arg_name ? ")" : "", message
406 	);
407 	efree(message);
408 	zend_string_release(func_name);
409 }
410 /* }}} */
411 
zend_argument_error(zend_class_entry * error_ce,uint32_t arg_num,const char * format,...)412 ZEND_API ZEND_COLD void zend_argument_error(zend_class_entry *error_ce, uint32_t arg_num, const char *format, ...) /* {{{ */
413 {
414 	va_list va;
415 
416 	va_start(va, format);
417 	zend_argument_error_variadic(error_ce, arg_num, format, va);
418 	va_end(va);
419 }
420 /* }}} */
421 
zend_argument_type_error(uint32_t arg_num,const char * format,...)422 ZEND_API ZEND_COLD void zend_argument_type_error(uint32_t arg_num, const char *format, ...) /* {{{ */
423 {
424 	va_list va;
425 
426 	va_start(va, format);
427 	zend_argument_error_variadic(zend_ce_type_error, arg_num, format, va);
428 	va_end(va);
429 }
430 /* }}} */
431 
zend_argument_value_error(uint32_t arg_num,const char * format,...)432 ZEND_API ZEND_COLD void zend_argument_value_error(uint32_t arg_num, const char *format, ...) /* {{{ */
433 {
434 	va_list va;
435 
436 	va_start(va, format);
437 	zend_argument_error_variadic(zend_ce_value_error, arg_num, format, va);
438 	va_end(va);
439 }
440 /* }}} */
441 
zend_argument_must_not_be_empty_error(uint32_t arg_num)442 ZEND_API ZEND_COLD void zend_argument_must_not_be_empty_error(uint32_t arg_num)
443 {
444 	zend_argument_value_error(arg_num, "must not be empty");
445 }
446 
zend_class_redeclaration_error_ex(int type,zend_string * new_name,zend_class_entry * old_ce)447 ZEND_API ZEND_COLD void zend_class_redeclaration_error_ex(int type, zend_string *new_name, zend_class_entry *old_ce)
448 {
449 	if (old_ce->type == ZEND_INTERNAL_CLASS) {
450 		zend_error(type, "Cannot redeclare %s %s",
451 			zend_get_object_type(old_ce),
452 			ZSTR_VAL(new_name));
453 	} else {
454 		zend_error(type, "Cannot redeclare %s %s (previously declared in %s:%d)",
455 			zend_get_object_type(old_ce),
456 			ZSTR_VAL(new_name),
457 			ZSTR_VAL(old_ce->info.user.filename),
458 			old_ce->info.user.line_start);
459 	}
460 }
461 
zend_class_redeclaration_error(int type,zend_class_entry * old_ce)462 ZEND_API ZEND_COLD void zend_class_redeclaration_error(int type, zend_class_entry *old_ce)
463 {
464 	zend_class_redeclaration_error_ex(type, old_ce->name, old_ce);
465 }
466 
zend_parse_arg_class(zval * arg,zend_class_entry ** pce,uint32_t num,bool check_null)467 ZEND_API bool ZEND_FASTCALL zend_parse_arg_class(zval *arg, zend_class_entry **pce, uint32_t num, bool check_null) /* {{{ */
468 {
469 	zend_class_entry *ce_base = *pce;
470 
471 	if (check_null && Z_TYPE_P(arg) == IS_NULL) {
472 		*pce = NULL;
473 		return 1;
474 	}
475 	if (!try_convert_to_string(arg)) {
476 		*pce = NULL;
477 		return 0;
478 	}
479 
480 	*pce = zend_lookup_class(Z_STR_P(arg));
481 	if (ce_base) {
482 		if ((!*pce || !instanceof_function(*pce, ce_base))) {
483 			zend_argument_type_error(num, "must be a class name derived from %s, %s given", ZSTR_VAL(ce_base->name), Z_STRVAL_P(arg));
484 			*pce = NULL;
485 			return 0;
486 		}
487 	}
488 	if (!*pce) {
489 		zend_argument_type_error(num, "must be a valid class name, %s given", Z_STRVAL_P(arg));
490 		return 0;
491 	}
492 	return 1;
493 }
494 /* }}} */
495 
zend_null_arg_deprecated(const char * fallback_type,uint32_t arg_num)496 static ZEND_COLD bool zend_null_arg_deprecated(const char *fallback_type, uint32_t arg_num) {
497 	zend_function *func = zend_active_function();
498 	ZEND_ASSERT(arg_num > 0);
499 	uint32_t arg_offset = arg_num - 1;
500 	if (arg_offset >= func->common.num_args) {
501 		ZEND_ASSERT(func->common.fn_flags & ZEND_ACC_VARIADIC);
502 		arg_offset = func->common.num_args;
503 	}
504 
505 	zend_arg_info *arg_info = &func->common.arg_info[arg_offset];
506 	zend_string *func_name = get_active_function_or_method_name();
507 	const char *arg_name = get_active_function_arg_name(arg_num);
508 
509 	/* If no type is specified in arginfo, use the specified fallback_type determined through
510 	 * zend_parse_parameters instead. */
511 	zend_string *type_str = zend_type_to_string(arg_info->type);
512 	const char *type = type_str ? ZSTR_VAL(type_str) : fallback_type;
513 	zend_error(E_DEPRECATED,
514 		"%s(): Passing null to parameter #%" PRIu32 "%s%s%s of type %s is deprecated",
515 		ZSTR_VAL(func_name), arg_num,
516 		arg_name ? " ($" : "", arg_name ? arg_name : "", arg_name ? ")" : "",
517 		type);
518 	zend_string_release(func_name);
519 	if (type_str) {
520 		zend_string_release(type_str);
521 	}
522 	return !EG(exception);
523 }
524 
zend_parse_arg_bool_weak(const zval * arg,bool * dest,uint32_t arg_num)525 ZEND_API bool ZEND_FASTCALL zend_parse_arg_bool_weak(const zval *arg, bool *dest, uint32_t arg_num) /* {{{ */
526 {
527 	if (EXPECTED(Z_TYPE_P(arg) <= IS_STRING)) {
528 		if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("bool", arg_num)) {
529 			return 0;
530 		}
531 		*dest = zend_is_true(arg);
532 	} else {
533 		return 0;
534 	}
535 	return 1;
536 }
537 /* }}} */
538 
zend_parse_arg_bool_slow(const zval * arg,bool * dest,uint32_t arg_num)539 ZEND_API bool ZEND_FASTCALL zend_parse_arg_bool_slow(const zval *arg, bool *dest, uint32_t arg_num) /* {{{ */
540 {
541 	if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
542 		return 0;
543 	}
544 	return zend_parse_arg_bool_weak(arg, dest, arg_num);
545 }
546 /* }}} */
547 
zend_flf_parse_arg_bool_slow(const zval * arg,bool * dest,uint32_t arg_num)548 ZEND_API bool ZEND_FASTCALL zend_flf_parse_arg_bool_slow(const zval *arg, bool *dest, uint32_t arg_num)
549 {
550 	if (UNEXPECTED(ZEND_FLF_ARG_USES_STRICT_TYPES())) {
551 		return 0;
552 	}
553 	return zend_parse_arg_bool_weak(arg, dest, arg_num);
554 }
555 
zend_parse_arg_long_weak(const zval * arg,zend_long * dest,uint32_t arg_num)556 ZEND_API bool ZEND_FASTCALL zend_parse_arg_long_weak(const zval *arg, zend_long *dest, uint32_t arg_num) /* {{{ */
557 {
558 	if (EXPECTED(Z_TYPE_P(arg) == IS_DOUBLE)) {
559 		if (UNEXPECTED(zend_isnan(Z_DVAL_P(arg)))) {
560 			return 0;
561 		}
562 		if (UNEXPECTED(!ZEND_DOUBLE_FITS_LONG(Z_DVAL_P(arg)))) {
563 			return 0;
564 		} else {
565 			zend_long lval = zend_dval_to_lval(Z_DVAL_P(arg));
566 			if (UNEXPECTED(!zend_is_long_compatible(Z_DVAL_P(arg), lval))) {
567 				/* Check arg_num is not (uint32_t)-1, as otherwise its called by
568 				 * zend_verify_weak_scalar_type_hint_no_sideeffect() */
569 				if (arg_num != (uint32_t)-1) {
570 					zend_incompatible_double_to_long_error(Z_DVAL_P(arg));
571 				}
572 				if (UNEXPECTED(EG(exception))) {
573 					return 0;
574 				}
575 			}
576 			*dest = lval;
577 		}
578 	} else if (EXPECTED(Z_TYPE_P(arg) == IS_STRING)) {
579 		double d;
580 		uint8_t type;
581 
582 		if (UNEXPECTED((type = is_numeric_str_function(Z_STR_P(arg), dest, &d)) != IS_LONG)) {
583 			if (EXPECTED(type != 0)) {
584 				zend_long lval;
585 				if (UNEXPECTED(zend_isnan(d))) {
586 					return 0;
587 				}
588 				if (UNEXPECTED(!ZEND_DOUBLE_FITS_LONG(d))) {
589 					return 0;
590 				}
591 
592 				lval = zend_dval_to_lval(d);
593 				/* This only checks for a fractional part as if doesn't fit it already throws a TypeError */
594 				if (UNEXPECTED(!zend_is_long_compatible(d, lval))) {
595 					/* Check arg_num is not (uint32_t)-1, as otherwise its called by
596 					 * zend_verify_weak_scalar_type_hint_no_sideeffect() */
597 					if (arg_num != (uint32_t)-1) {
598 						zend_incompatible_string_to_long_error(Z_STR_P(arg));
599 					}
600 					if (UNEXPECTED(EG(exception))) {
601 						return 0;
602 					}
603 				}
604 				*dest = lval;
605 			} else {
606 				return 0;
607 			}
608 		}
609 		if (UNEXPECTED(EG(exception))) {
610 			return 0;
611 		}
612 	} else if (EXPECTED(Z_TYPE_P(arg) < IS_TRUE)) {
613 		if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("int", arg_num)) {
614 			return 0;
615 		}
616 		*dest = 0;
617 	} else if (EXPECTED(Z_TYPE_P(arg) == IS_TRUE)) {
618 		*dest = 1;
619 	} else {
620 		return 0;
621 	}
622 	return 1;
623 }
624 /* }}} */
625 
zend_parse_arg_long_slow(const zval * arg,zend_long * dest,uint32_t arg_num)626 ZEND_API bool ZEND_FASTCALL zend_parse_arg_long_slow(const zval *arg, zend_long *dest, uint32_t arg_num) /* {{{ */
627 {
628 	if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
629 		return 0;
630 	}
631 	return zend_parse_arg_long_weak(arg, dest, arg_num);
632 }
633 /* }}} */
634 
zend_flf_parse_arg_long_slow(const zval * arg,zend_long * dest,uint32_t arg_num)635 ZEND_API bool ZEND_FASTCALL zend_flf_parse_arg_long_slow(const zval *arg, zend_long *dest, uint32_t arg_num)
636 {
637 	if (UNEXPECTED(ZEND_FLF_ARG_USES_STRICT_TYPES())) {
638 		return 0;
639 	}
640 	return zend_parse_arg_long_weak(arg, dest, arg_num);
641 }
642 
zend_parse_arg_double_weak(const zval * arg,double * dest,uint32_t arg_num)643 ZEND_API bool ZEND_FASTCALL zend_parse_arg_double_weak(const zval *arg, double *dest, uint32_t arg_num) /* {{{ */
644 {
645 	if (EXPECTED(Z_TYPE_P(arg) == IS_LONG)) {
646 		*dest = (double)Z_LVAL_P(arg);
647 	} else if (EXPECTED(Z_TYPE_P(arg) == IS_STRING)) {
648 		zend_long l;
649 		uint8_t type;
650 
651 		if (UNEXPECTED((type = is_numeric_str_function(Z_STR_P(arg), &l, dest)) != IS_DOUBLE)) {
652 			if (EXPECTED(type != 0)) {
653 				*dest = (double)(l);
654 			} else {
655 				return 0;
656 			}
657 		}
658 		if (UNEXPECTED(EG(exception))) {
659 			return 0;
660 		}
661 	} else if (EXPECTED(Z_TYPE_P(arg) < IS_TRUE)) {
662 		if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("float", arg_num)) {
663 			return 0;
664 		}
665 		*dest = 0.0;
666 	} else if (EXPECTED(Z_TYPE_P(arg) == IS_TRUE)) {
667 		*dest = 1.0;
668 	} else {
669 		return 0;
670 	}
671 	return 1;
672 }
673 /* }}} */
674 
zend_parse_arg_double_slow(const zval * arg,double * dest,uint32_t arg_num)675 ZEND_API bool ZEND_FASTCALL zend_parse_arg_double_slow(const zval *arg, double *dest, uint32_t arg_num) /* {{{ */
676 {
677 	if (EXPECTED(Z_TYPE_P(arg) == IS_LONG)) {
678 		/* SSTH Exception: IS_LONG may be accepted instead as IS_DOUBLE */
679 		*dest = (double)Z_LVAL_P(arg);
680 	} else if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
681 		return 0;
682 	}
683 	return zend_parse_arg_double_weak(arg, dest, arg_num);
684 }
685 /* }}} */
686 
zend_parse_arg_number_slow(zval * arg,zval ** dest,uint32_t arg_num)687 ZEND_API bool ZEND_FASTCALL zend_parse_arg_number_slow(zval *arg, zval **dest, uint32_t arg_num) /* {{{ */
688 {
689 	if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
690 		return 0;
691 	}
692 	if (Z_TYPE_P(arg) == IS_STRING) {
693 		zend_string *str = Z_STR_P(arg);
694 		zend_long lval;
695 		double dval;
696 		uint8_t type = is_numeric_str_function(str, &lval, &dval);
697 		if (type == IS_LONG) {
698 			ZVAL_LONG(arg, lval);
699 		} else if (type == IS_DOUBLE) {
700 			ZVAL_DOUBLE(arg, dval);
701 		} else {
702 			return 0;
703 		}
704 		zend_string_release(str);
705 	} else if (Z_TYPE_P(arg) < IS_TRUE) {
706 		if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("int|float", arg_num)) {
707 			return 0;
708 		}
709 		ZVAL_LONG(arg, 0);
710 	} else if (Z_TYPE_P(arg) == IS_TRUE) {
711 		ZVAL_LONG(arg, 1);
712 	} else {
713 		return 0;
714 	}
715 	*dest = arg;
716 	return 1;
717 }
718 /* }}} */
719 
720 
zend_parse_arg_number_or_str_slow(zval * arg,zval ** dest,uint32_t arg_num)721 ZEND_API bool ZEND_FASTCALL zend_parse_arg_number_or_str_slow(zval *arg, zval **dest, uint32_t arg_num) /* {{{ */
722 {
723 	if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
724 		return false;
725 	}
726 	if (Z_TYPE_P(arg) < IS_TRUE) {
727 		if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("string|int|float", arg_num)) {
728 			return false;
729 		}
730 		ZVAL_LONG(arg, 0);
731 	} else if (Z_TYPE_P(arg) == IS_TRUE) {
732 		ZVAL_LONG(arg, 1);
733 	} else if (UNEXPECTED(Z_TYPE_P(arg) == IS_OBJECT)) {
734 		zend_object *zobj = Z_OBJ_P(arg);
735 		zval obj;
736 		if (zobj->handlers->cast_object(zobj, &obj, IS_STRING) == SUCCESS) {
737 			OBJ_RELEASE(zobj);
738 			ZVAL_COPY_VALUE(arg, &obj);
739 			*dest = arg;
740 			return true;
741 		}
742 		return false;
743 	} else {
744 		return false;
745 	}
746 	*dest = arg;
747 	return true;
748 }
749 
zend_parse_arg_str_weak(zval * arg,zend_string ** dest,uint32_t arg_num)750 ZEND_API bool ZEND_FASTCALL zend_parse_arg_str_weak(zval *arg, zend_string **dest, uint32_t arg_num) /* {{{ */
751 {
752 	if (EXPECTED(Z_TYPE_P(arg) < IS_STRING)) {
753 		if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("string", arg_num)) {
754 			return 0;
755 		}
756 		convert_to_string(arg);
757 		*dest = Z_STR_P(arg);
758 	} else if (UNEXPECTED(Z_TYPE_P(arg) == IS_OBJECT)) {
759 		zend_object *zobj = Z_OBJ_P(arg);
760 		zval obj;
761 		if (zobj->handlers->cast_object(zobj, &obj, IS_STRING) == SUCCESS) {
762 			OBJ_RELEASE(zobj);
763 			ZVAL_COPY_VALUE(arg, &obj);
764 			*dest = Z_STR_P(arg);
765 			return 1;
766 		}
767 		return 0;
768 	} else {
769 		return 0;
770 	}
771 	return 1;
772 }
773 /* }}} */
774 
zend_parse_arg_str_slow(zval * arg,zend_string ** dest,uint32_t arg_num)775 ZEND_API bool ZEND_FASTCALL zend_parse_arg_str_slow(zval *arg, zend_string **dest, uint32_t arg_num) /* {{{ */
776 {
777 	if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
778 		return 0;
779 	}
780 	return zend_parse_arg_str_weak(arg, dest, arg_num);
781 }
782 /* }}} */
783 
zend_flf_parse_arg_str_slow(zval * arg,zend_string ** dest,uint32_t arg_num)784 ZEND_API bool ZEND_FASTCALL zend_flf_parse_arg_str_slow(zval *arg, zend_string **dest, uint32_t arg_num)
785 {
786 	if (UNEXPECTED(ZEND_FLF_ARG_USES_STRICT_TYPES())) {
787 		return 0;
788 	}
789 	return zend_parse_arg_str_weak(arg, dest, arg_num);
790 }
791 
zend_parse_arg_str_or_long_slow(zval * arg,zend_string ** dest_str,zend_long * dest_long,uint32_t arg_num)792 ZEND_API bool ZEND_FASTCALL zend_parse_arg_str_or_long_slow(zval *arg, zend_string **dest_str, zend_long *dest_long, uint32_t arg_num) /* {{{ */
793 {
794 	if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
795 		return 0;
796 	}
797 	if (zend_parse_arg_long_weak(arg, dest_long, arg_num)) {
798 		*dest_str = NULL;
799 		return 1;
800 	} else if (zend_parse_arg_str_weak(arg, dest_str, arg_num)) {
801 		*dest_long = 0;
802 		return 1;
803 	} else {
804 		return 0;
805 	}
806 }
807 /* }}} */
808 
zend_parse_arg_impl(zval * arg,va_list * va,const char ** spec,char ** error,uint32_t arg_num)809 static const char *zend_parse_arg_impl(zval *arg, va_list *va, const char **spec, char **error, uint32_t arg_num) /* {{{ */
810 {
811 	const char *spec_walk = *spec;
812 	char c = *spec_walk++;
813 	bool check_null = 0;
814 	bool separate = 0;
815 	zval *real_arg = arg;
816 
817 	/* scan through modifiers */
818 	ZVAL_DEREF(arg);
819 	while (1) {
820 		if (*spec_walk == '/') {
821 			SEPARATE_ZVAL_NOREF(arg);
822 			real_arg = arg;
823 			separate = 1;
824 		} else if (*spec_walk == '!') {
825 			check_null = 1;
826 		} else {
827 			break;
828 		}
829 		spec_walk++;
830 	}
831 
832 	switch (c) {
833 		case 'l':
834 			{
835 				zend_long *p = va_arg(*va, zend_long *);
836 				bool *is_null = NULL;
837 
838 				if (check_null) {
839 					is_null = va_arg(*va, bool *);
840 				}
841 
842 				if (!zend_parse_arg_long(arg, p, is_null, check_null, arg_num)) {
843 					return check_null ? "?int" : "int";
844 				}
845 			}
846 			break;
847 
848 		case 'd':
849 			{
850 				double *p = va_arg(*va, double *);
851 				bool *is_null = NULL;
852 
853 				if (check_null) {
854 					is_null = va_arg(*va, bool *);
855 				}
856 
857 				if (!zend_parse_arg_double(arg, p, is_null, check_null, arg_num)) {
858 					return check_null ? "?float" : "float";
859 				}
860 			}
861 			break;
862 
863 		case 'n':
864 			{
865 				zval **p = va_arg(*va, zval **);
866 
867 				if (!zend_parse_arg_number(arg, p, check_null, arg_num)) {
868 					return check_null ? "int|float|null" : "int|float";
869 				}
870 			}
871 			break;
872 
873 		case 's':
874 			{
875 				char **p = va_arg(*va, char **);
876 				size_t *pl = va_arg(*va, size_t *);
877 				if (!zend_parse_arg_string(arg, p, pl, check_null, arg_num)) {
878 					return check_null ? "?string" : "string";
879 				}
880 			}
881 			break;
882 
883 		case 'p':
884 			{
885 				char **p = va_arg(*va, char **);
886 				size_t *pl = va_arg(*va, size_t *);
887 				if (!zend_parse_arg_path(arg, p, pl, check_null, arg_num)) {
888 					if (Z_TYPE_P(arg) == IS_STRING) {
889 						zend_spprintf(error, 0, "must not contain any null bytes");
890 						return "";
891 					} else {
892 						return check_null ? "?string" : "string";
893 					}
894 				}
895 			}
896 			break;
897 
898 		case 'P':
899 			{
900 				zend_string **str = va_arg(*va, zend_string **);
901 				if (!zend_parse_arg_path_str(arg, str, check_null, arg_num)) {
902 					if (Z_TYPE_P(arg) == IS_STRING) {
903 						zend_spprintf(error, 0, "must not contain any null bytes");
904 						return "";
905 					} else {
906 						return check_null ? "?string" : "string";
907 					}
908 				}
909 			}
910 			break;
911 
912 		case 'S':
913 			{
914 				zend_string **str = va_arg(*va, zend_string **);
915 				if (!zend_parse_arg_str(arg, str, check_null, arg_num)) {
916 					return check_null ? "?string" : "string";
917 				}
918 			}
919 			break;
920 
921 		case 'b':
922 			{
923 				bool *p = va_arg(*va, bool *);
924 				bool *is_null = NULL;
925 
926 				if (check_null) {
927 					is_null = va_arg(*va, bool *);
928 				}
929 
930 				if (!zend_parse_arg_bool(arg, p, is_null, check_null, arg_num)) {
931 					return check_null ? "?bool" : "bool";
932 				}
933 			}
934 			break;
935 
936 		case 'r':
937 			{
938 				zval **p = va_arg(*va, zval **);
939 
940 				if (!zend_parse_arg_resource(arg, p, check_null)) {
941 					return check_null ? "resource or null" : "resource";
942 				}
943 			}
944 			break;
945 
946 		case 'A':
947 		case 'a':
948 			{
949 				zval **p = va_arg(*va, zval **);
950 
951 				if (!zend_parse_arg_array(arg, p, check_null, c == 'A')) {
952 					return check_null ? "?array" : "array";
953 				}
954 			}
955 			break;
956 
957 		case 'H':
958 		case 'h':
959 			{
960 				HashTable **p = va_arg(*va, HashTable **);
961 
962 				if (!zend_parse_arg_array_ht(arg, p, check_null, c == 'H', separate)) {
963 					return check_null ? "?array" : "array";
964 				}
965 			}
966 			break;
967 
968 		case 'o':
969 			{
970 				zval **p = va_arg(*va, zval **);
971 
972 				if (!zend_parse_arg_object(arg, p, NULL, check_null)) {
973 					return check_null ? "?object" : "object";
974 				}
975 			}
976 			break;
977 
978 		case 'O':
979 			{
980 				zval **p = va_arg(*va, zval **);
981 				zend_class_entry *ce = va_arg(*va, zend_class_entry *);
982 
983 				if (!zend_parse_arg_object(arg, p, ce, check_null)) {
984 					if (ce) {
985 						if (check_null) {
986 							zend_spprintf(error, 0, "must be of type ?%s, %s given", ZSTR_VAL(ce->name), zend_zval_value_name(arg));
987 							return "";
988 						} else {
989 							return ZSTR_VAL(ce->name);
990 						}
991 					} else {
992 						return check_null ? "?object" : "object";
993 					}
994 				}
995 			}
996 			break;
997 
998 		case 'C':
999 			{
1000 				zend_class_entry *lookup, **pce = va_arg(*va, zend_class_entry **);
1001 				zend_class_entry *ce_base = *pce;
1002 
1003 				if (check_null && Z_TYPE_P(arg) == IS_NULL) {
1004 					*pce = NULL;
1005 					break;
1006 				}
1007 				if (!try_convert_to_string(arg)) {
1008 					*pce = NULL;
1009 					return ""; /* try_convert_to_string() throws an exception */
1010 				}
1011 
1012 				if ((lookup = zend_lookup_class(Z_STR_P(arg))) == NULL) {
1013 					*pce = NULL;
1014 				} else {
1015 					*pce = lookup;
1016 				}
1017 				if (ce_base) {
1018 					if ((!*pce || !instanceof_function(*pce, ce_base))) {
1019 						zend_spprintf(error, 0, "must be a class name derived from %s%s, %s given",
1020 							ZSTR_VAL(ce_base->name), check_null ? " or null" : "", Z_STRVAL_P(arg));
1021 						*pce = NULL;
1022 						return "";
1023 					}
1024 				}
1025 				if (!*pce) {
1026 					zend_spprintf(error, 0, "must be a valid class name%s, %s given",
1027 						check_null ? " or null" : "", Z_STRVAL_P(arg));
1028 					return "";
1029 				}
1030 				break;
1031 
1032 			}
1033 			break;
1034 
1035 		case 'F':
1036 		case 'f':
1037 			{
1038 				zend_fcall_info *fci = va_arg(*va, zend_fcall_info *);
1039 				zend_fcall_info_cache *fcc = va_arg(*va, zend_fcall_info_cache *);
1040 				char *is_callable_error = NULL;
1041 
1042 				if (check_null && Z_TYPE_P(arg) == IS_NULL) {
1043 					fci->size = 0;
1044 					fcc->function_handler = 0;
1045 					break;
1046 				}
1047 
1048 				if (zend_fcall_info_init(arg, 0, fci, fcc, NULL, &is_callable_error) == SUCCESS) {
1049 					ZEND_ASSERT(!is_callable_error);
1050 					if (c == 'f') {
1051 						/* Release call trampolines: The function may not get called, in which case
1052 						 * the trampoline will leak. Force it to be refetched during
1053 						 * zend_call_function instead. */
1054 						zend_release_fcall_info_cache(fcc);
1055 					}
1056 					break;
1057 				}
1058 
1059 				if (is_callable_error) {
1060 					zend_spprintf(error, 0, "must be a valid callback%s, %s", check_null ? " or null" : "", is_callable_error);
1061 					efree(is_callable_error);
1062 					return "";
1063 				} else {
1064 					return check_null ? "a valid callback or null" : "a valid callback";
1065 				}
1066 			}
1067 
1068 		case 'z':
1069 			{
1070 				zval **p = va_arg(*va, zval **);
1071 
1072 				zend_parse_arg_zval_deref(real_arg, p, check_null);
1073 			}
1074 			break;
1075 
1076 		case 'Z': /* replace with 'z' */
1077 		case 'L': /* replace with 'l' */
1078 			ZEND_ASSERT(0 && "ZPP modifier no longer supported");
1079 			ZEND_FALLTHROUGH;
1080 		default:
1081 			return "unknown";
1082 	}
1083 
1084 	*spec = spec_walk;
1085 
1086 	return NULL;
1087 }
1088 /* }}} */
1089 
zend_parse_arg(uint32_t arg_num,zval * arg,va_list * va,const char ** spec,int flags)1090 static zend_result zend_parse_arg(uint32_t arg_num, zval *arg, va_list *va, const char **spec, int flags) /* {{{ */
1091 {
1092 	const char *expected_type = NULL;
1093 	char *error = NULL;
1094 
1095 	expected_type = zend_parse_arg_impl(arg, va, spec, &error, arg_num);
1096 	if (expected_type) {
1097 		if (EG(exception)) {
1098 			return FAILURE;
1099 		}
1100 		if (!(flags & ZEND_PARSE_PARAMS_QUIET) && (*expected_type || error)) {
1101 			if (error) {
1102 				if (strcmp(error, "must not contain any null bytes") == 0) {
1103 					zend_argument_value_error(arg_num, "%s", error);
1104 				} else {
1105 					zend_argument_type_error(arg_num, "%s", error);
1106 				}
1107 				efree(error);
1108 			} else {
1109 				zend_argument_type_error(arg_num, "must be of type %s, %s given", expected_type, zend_zval_value_name(arg));
1110 			}
1111 		} else if (error) {
1112 			efree(error);
1113 		}
1114 
1115 		return FAILURE;
1116 	}
1117 
1118 	return SUCCESS;
1119 }
1120 /* }}} */
1121 
zend_parse_parameter(int flags,uint32_t arg_num,zval * arg,const char * spec,...)1122 ZEND_API zend_result zend_parse_parameter(int flags, uint32_t arg_num, zval *arg, const char *spec, ...)
1123 {
1124 	va_list va;
1125 	zend_result ret;
1126 
1127 	va_start(va, spec);
1128 	ret = zend_parse_arg(arg_num, arg, &va, &spec, flags);
1129 	va_end(va);
1130 
1131 	return ret;
1132 }
1133 
zend_parse_parameters_debug_error(const char * msg)1134 static ZEND_COLD void zend_parse_parameters_debug_error(const char *msg) {
1135 	zend_function *active_function = EG(current_execute_data)->func;
1136 	const char *class_name = active_function->common.scope
1137 		? ZSTR_VAL(active_function->common.scope->name) : "";
1138 	zend_error_noreturn(E_CORE_ERROR, "%s%s%s(): %s",
1139 		class_name, class_name[0] ? "::" : "",
1140 		ZSTR_VAL(active_function->common.function_name), msg);
1141 }
1142 
zend_parse_va_args(uint32_t num_args,const char * type_spec,va_list * va,int flags)1143 static zend_result zend_parse_va_args(uint32_t num_args, const char *type_spec, va_list *va, int flags) /* {{{ */
1144 {
1145 	const  char *spec_walk;
1146 	char c;
1147 	uint32_t i;
1148 	uint32_t min_num_args = 0;
1149 	uint32_t max_num_args = 0;
1150 	uint32_t post_varargs = 0;
1151 	zval *arg;
1152 	bool have_varargs = 0;
1153 	bool have_optional_args = 0;
1154 	zval **varargs = NULL;
1155 	uint32_t *n_varargs = NULL;
1156 
1157 	for (spec_walk = type_spec; *spec_walk; spec_walk++) {
1158 		c = *spec_walk;
1159 		switch (c) {
1160 			case 'l': case 'd':
1161 			case 's': case 'b':
1162 			case 'r': case 'a':
1163 			case 'o': case 'O':
1164 			case 'z': case 'Z':
1165 			case 'C': case 'h':
1166 			case 'f': case 'F': case 'A':
1167 			case 'H': case 'p':
1168 			case 'S': case 'P':
1169 			case 'L': case 'n':
1170 				max_num_args++;
1171 				break;
1172 
1173 			case '|':
1174 				min_num_args = max_num_args;
1175 				have_optional_args = 1;
1176 				break;
1177 
1178 			case '/':
1179 			case '!':
1180 				/* Pass */
1181 				break;
1182 
1183 			case '*':
1184 			case '+':
1185 				if (have_varargs) {
1186 					zend_parse_parameters_debug_error(
1187 						"only one varargs specifier (* or +) is permitted");
1188 					return FAILURE;
1189 				}
1190 				have_varargs = 1;
1191 				/* we expect at least one parameter in varargs */
1192 				if (c == '+') {
1193 					max_num_args++;
1194 				}
1195 				/* mark the beginning of varargs */
1196 				post_varargs = max_num_args;
1197 
1198 				if (ZEND_CALL_INFO(EG(current_execute_data)) & ZEND_CALL_HAS_EXTRA_NAMED_PARAMS) {
1199 					zend_unexpected_extra_named_error();
1200 					return FAILURE;
1201 				}
1202 				break;
1203 
1204 			default:
1205 				zend_parse_parameters_debug_error("bad type specifier while parsing parameters");
1206 				return FAILURE;
1207 		}
1208 	}
1209 
1210 	/* with no optional arguments the minimum number of arguments must be the same as the maximum */
1211 	if (!have_optional_args) {
1212 		min_num_args = max_num_args;
1213 	}
1214 
1215 	if (have_varargs) {
1216 		/* calculate how many required args are at the end of the specifier list */
1217 		post_varargs = max_num_args - post_varargs;
1218 		max_num_args = UINT32_MAX;
1219 	}
1220 
1221 	if (num_args < min_num_args || num_args > max_num_args) {
1222 		if (!(flags & ZEND_PARSE_PARAMS_QUIET)) {
1223 			zend_string *func_name = get_active_function_or_method_name();
1224 
1225 			zend_argument_count_error("%s() expects %s %d argument%s, %d given",
1226 				ZSTR_VAL(func_name),
1227 				min_num_args == max_num_args ? "exactly" : num_args < min_num_args ? "at least" : "at most",
1228 				num_args < min_num_args ? min_num_args : max_num_args,
1229 				(num_args < min_num_args ? min_num_args : max_num_args) == 1 ? "" : "s",
1230 				num_args
1231 			);
1232 
1233 			zend_string_release(func_name);
1234 		}
1235 		return FAILURE;
1236 	}
1237 
1238 	if (num_args > ZEND_CALL_NUM_ARGS(EG(current_execute_data))) {
1239 		zend_parse_parameters_debug_error("could not obtain parameters for parsing");
1240 		return FAILURE;
1241 	}
1242 
1243 	i = 0;
1244 	while (num_args-- > 0) {
1245 		if (*type_spec == '|') {
1246 			type_spec++;
1247 		}
1248 
1249 		if (*type_spec == '*' || *type_spec == '+') {
1250 			uint32_t num_varargs = num_args + 1 - post_varargs;
1251 
1252 			/* eat up the passed in storage even if it won't be filled in with varargs */
1253 			varargs = va_arg(*va, zval **);
1254 			n_varargs = va_arg(*va, uint32_t *);
1255 			type_spec++;
1256 
1257 			if (num_varargs > 0) {
1258 				*n_varargs = num_varargs;
1259 				*varargs = ZEND_CALL_ARG(EG(current_execute_data), i + 1);
1260 				/* adjust how many args we have left and restart loop */
1261 				num_args += 1 - num_varargs;
1262 				i += num_varargs;
1263 				continue;
1264 			} else {
1265 				*varargs = NULL;
1266 				*n_varargs = 0;
1267 			}
1268 		}
1269 
1270 		arg = ZEND_CALL_ARG(EG(current_execute_data), i + 1);
1271 
1272 		if (zend_parse_arg(i+1, arg, va, &type_spec, flags) == FAILURE) {
1273 			/* clean up varargs array if it was used */
1274 			if (varargs && *varargs) {
1275 				*varargs = NULL;
1276 			}
1277 			return FAILURE;
1278 		}
1279 		i++;
1280 	}
1281 
1282 	return SUCCESS;
1283 }
1284 /* }}} */
1285 
zend_parse_parameters_ex(int flags,uint32_t num_args,const char * type_spec,...)1286 ZEND_API zend_result zend_parse_parameters_ex(int flags, uint32_t num_args, const char *type_spec, ...) /* {{{ */
1287 {
1288 	va_list va;
1289 	zend_result retval;
1290 
1291 	va_start(va, type_spec);
1292 	retval = zend_parse_va_args(num_args, type_spec, &va, flags);
1293 	va_end(va);
1294 
1295 	return retval;
1296 }
1297 /* }}} */
1298 
zend_parse_parameters(uint32_t num_args,const char * type_spec,...)1299 ZEND_API zend_result zend_parse_parameters(uint32_t num_args, const char *type_spec, ...) /* {{{ */
1300 {
1301 	va_list va;
1302 	zend_result retval;
1303 	int flags = 0;
1304 
1305 	va_start(va, type_spec);
1306 	retval = zend_parse_va_args(num_args, type_spec, &va, flags);
1307 	va_end(va);
1308 
1309 	return retval;
1310 }
1311 /* }}} */
1312 
zend_parse_method_parameters(uint32_t num_args,zval * this_ptr,const char * type_spec,...)1313 ZEND_API zend_result zend_parse_method_parameters(uint32_t num_args, zval *this_ptr, const char *type_spec, ...) /* {{{ */
1314 {
1315 	va_list va;
1316 	zend_result retval;
1317 	int flags = 0;
1318 	const char *p = type_spec;
1319 	zval **object;
1320 	zend_class_entry *ce;
1321 
1322 	/* Just checking this_ptr is not enough, because fcall_common_helper does not set
1323 	 * Z_OBJ(EG(This)) to NULL when calling an internal function with common.scope == NULL.
1324 	 * In that case EG(This) would still be the $this from the calling code and we'd take the
1325 	 * wrong branch here. */
1326 	bool is_method = EG(current_execute_data)->func->common.scope != NULL;
1327 
1328 	if (!is_method || !this_ptr || Z_TYPE_P(this_ptr) != IS_OBJECT) {
1329 		va_start(va, type_spec);
1330 		retval = zend_parse_va_args(num_args, type_spec, &va, flags);
1331 		va_end(va);
1332 	} else {
1333 		p++;
1334 
1335 		va_start(va, type_spec);
1336 
1337 		object = va_arg(va, zval **);
1338 		ce = va_arg(va, zend_class_entry *);
1339 		*object = this_ptr;
1340 
1341 		if (ce && !instanceof_function(Z_OBJCE_P(this_ptr), ce)) {
1342 			zend_error_noreturn(E_CORE_ERROR, "%s::%s() must be derived from %s::%s()",
1343 				ZSTR_VAL(Z_OBJCE_P(this_ptr)->name), get_active_function_name(), ZSTR_VAL(ce->name), get_active_function_name());
1344 		}
1345 
1346 		retval = zend_parse_va_args(num_args, p, &va, flags);
1347 		va_end(va);
1348 	}
1349 	return retval;
1350 }
1351 /* }}} */
1352 
zend_parse_method_parameters_ex(int flags,uint32_t num_args,zval * this_ptr,const char * type_spec,...)1353 ZEND_API zend_result zend_parse_method_parameters_ex(int flags, uint32_t num_args, zval *this_ptr, const char *type_spec, ...) /* {{{ */
1354 {
1355 	va_list va;
1356 	zend_result retval;
1357 	const char *p = type_spec;
1358 	zval **object;
1359 	zend_class_entry *ce;
1360 
1361 	if (!this_ptr) {
1362 		va_start(va, type_spec);
1363 		retval = zend_parse_va_args(num_args, type_spec, &va, flags);
1364 		va_end(va);
1365 	} else {
1366 		p++;
1367 		va_start(va, type_spec);
1368 
1369 		object = va_arg(va, zval **);
1370 		ce = va_arg(va, zend_class_entry *);
1371 		*object = this_ptr;
1372 
1373 		if (ce && !instanceof_function(Z_OBJCE_P(this_ptr), ce)) {
1374 			if (!(flags & ZEND_PARSE_PARAMS_QUIET)) {
1375 				zend_error_noreturn(E_CORE_ERROR, "%s::%s() must be derived from %s::%s()",
1376 					ZSTR_VAL(ce->name), get_active_function_name(), ZSTR_VAL(Z_OBJCE_P(this_ptr)->name), get_active_function_name());
1377 			}
1378 			va_end(va);
1379 			return FAILURE;
1380 		}
1381 
1382 		retval = zend_parse_va_args(num_args, p, &va, flags);
1383 		va_end(va);
1384 	}
1385 	return retval;
1386 }
1387 /* }}} */
1388 
1389 /* This function should be called after the constructor has been called
1390  * because it may call __set from the uninitialized object otherwise. */
zend_merge_properties(zval * obj,HashTable * properties)1391 ZEND_API void zend_merge_properties(zval *obj, HashTable *properties) /* {{{ */
1392 {
1393 	zend_object *zobj = Z_OBJ_P(obj);
1394 	zend_object_write_property_t write_property = zobj->handlers->write_property;
1395 	zend_class_entry *old_scope = EG(fake_scope);
1396 	zend_string *key;
1397 	zval *value;
1398 
1399 	if (HT_IS_PACKED(properties)) {
1400 		return;
1401 	}
1402 	EG(fake_scope) = Z_OBJCE_P(obj);
1403 	ZEND_HASH_MAP_FOREACH_STR_KEY_VAL(properties, key, value) {
1404 		if (key) {
1405 			write_property(zobj, key, value, NULL);
1406 		}
1407 	} ZEND_HASH_FOREACH_END();
1408 	EG(fake_scope) = old_scope;
1409 }
1410 /* }}} */
1411 
zend_allocate_mutable_data(zend_class_entry * class_type)1412 static zend_class_mutable_data *zend_allocate_mutable_data(zend_class_entry *class_type) /* {{{ */
1413 {
1414 	zend_class_mutable_data *mutable_data;
1415 
1416 	ZEND_ASSERT(ZEND_MAP_PTR(class_type->mutable_data) != NULL);
1417 	ZEND_ASSERT(ZEND_MAP_PTR_GET_IMM(class_type->mutable_data) == NULL);
1418 
1419 	mutable_data = zend_arena_alloc(&CG(arena), sizeof(zend_class_mutable_data));
1420 	memset(mutable_data, 0, sizeof(zend_class_mutable_data));
1421 	mutable_data->ce_flags = class_type->ce_flags;
1422 	ZEND_MAP_PTR_SET_IMM(class_type->mutable_data, mutable_data);
1423 
1424 	return mutable_data;
1425 }
1426 /* }}} */
1427 
zend_separate_class_constants_table(zend_class_entry * class_type)1428 ZEND_API HashTable *zend_separate_class_constants_table(zend_class_entry *class_type) /* {{{ */
1429 {
1430 	zend_class_mutable_data *mutable_data;
1431 	HashTable *constants_table;
1432 	zend_string *key;
1433 	zend_class_constant *new_c, *c;
1434 
1435 	constants_table = zend_arena_alloc(&CG(arena), sizeof(HashTable));
1436 	zend_hash_init(constants_table, zend_hash_num_elements(&class_type->constants_table), NULL, NULL, 0);
1437 	zend_hash_extend(constants_table, zend_hash_num_elements(&class_type->constants_table), 0);
1438 
1439 	ZEND_HASH_MAP_FOREACH_STR_KEY_PTR(&class_type->constants_table, key, c) {
1440 		if (c->ce == class_type) {
1441 			if (Z_TYPE(c->value) == IS_CONSTANT_AST) {
1442 				new_c = zend_arena_alloc(&CG(arena), sizeof(zend_class_constant));
1443 				memcpy(new_c, c, sizeof(zend_class_constant));
1444 				c = new_c;
1445 			}
1446 			Z_TRY_ADDREF(c->value);
1447 		} else {
1448 			if (Z_TYPE(c->value) == IS_CONSTANT_AST) {
1449 				c = zend_hash_find_ptr(CE_CONSTANTS_TABLE(c->ce), key);
1450 				ZEND_ASSERT(c);
1451 			}
1452 		}
1453 		_zend_hash_append_ptr(constants_table, key, c);
1454 	} ZEND_HASH_FOREACH_END();
1455 
1456 	ZEND_ASSERT(ZEND_MAP_PTR(class_type->mutable_data) != NULL);
1457 
1458 	mutable_data = ZEND_MAP_PTR_GET_IMM(class_type->mutable_data);
1459 	if (!mutable_data) {
1460 		mutable_data = zend_allocate_mutable_data(class_type);
1461 	}
1462 
1463 	mutable_data->constants_table = constants_table;
1464 
1465 	return constants_table;
1466 }
1467 
update_property(zval * val,zend_property_info * prop_info)1468 static zend_result update_property(zval *val, zend_property_info *prop_info) {
1469 	if (ZEND_TYPE_IS_SET(prop_info->type)) {
1470 		zval tmp;
1471 
1472 		ZVAL_COPY(&tmp, val);
1473 		if (UNEXPECTED(zval_update_constant_ex(&tmp, prop_info->ce) != SUCCESS)) {
1474 			zval_ptr_dtor(&tmp);
1475 			return FAILURE;
1476 		}
1477 		/* property initializers must always be evaluated with strict types */;
1478 		if (UNEXPECTED(!zend_verify_property_type(prop_info, &tmp, /* strict */ 1))) {
1479 			zval_ptr_dtor(&tmp);
1480 			return FAILURE;
1481 		}
1482 		zval_ptr_dtor(val);
1483 		ZVAL_COPY_VALUE(val, &tmp);
1484 		return SUCCESS;
1485 	}
1486 	return zval_update_constant_ex(val, prop_info->ce);
1487 }
1488 
zend_update_class_constant(zend_class_constant * c,const zend_string * name,zend_class_entry * scope)1489 ZEND_API zend_result zend_update_class_constant(zend_class_constant *c, const zend_string *name, zend_class_entry *scope)
1490 {
1491 	ZEND_ASSERT(Z_TYPE(c->value) == IS_CONSTANT_AST);
1492 
1493 	if (EXPECTED(!ZEND_TYPE_IS_SET(c->type) || ZEND_TYPE_PURE_MASK(c->type) == MAY_BE_ANY)) {
1494 		return zval_update_constant_ex(&c->value, scope);
1495 	}
1496 
1497 	zval tmp;
1498 
1499 	ZVAL_COPY(&tmp, &c->value);
1500 	zend_result result = zval_update_constant_ex(&tmp, scope);
1501 	if (result == FAILURE) {
1502 		zval_ptr_dtor(&tmp);
1503 		return FAILURE;
1504 	}
1505 
1506 	if (UNEXPECTED(!zend_verify_class_constant_type(c, name, &tmp))) {
1507 		zval_ptr_dtor(&tmp);
1508 		return FAILURE;
1509 	}
1510 
1511 	zval_ptr_dtor(&c->value);
1512 	ZVAL_COPY_VALUE(&c->value, &tmp);
1513 
1514 	return SUCCESS;
1515 }
1516 
zend_update_class_constants(zend_class_entry * class_type)1517 ZEND_API zend_result zend_update_class_constants(zend_class_entry *class_type) /* {{{ */
1518 {
1519 	zend_class_mutable_data *mutable_data = NULL;
1520 	zval *default_properties_table = NULL;
1521 	zval *static_members_table = NULL;
1522 	zend_class_constant *c;
1523 	zval *val;
1524 	uint32_t ce_flags;
1525 
1526 	ce_flags = class_type->ce_flags;
1527 
1528 	if (ce_flags & ZEND_ACC_CONSTANTS_UPDATED) {
1529 		return SUCCESS;
1530 	}
1531 
1532 	bool uses_mutable_data = ZEND_MAP_PTR(class_type->mutable_data) != NULL;
1533 	if (uses_mutable_data) {
1534 		mutable_data = ZEND_MAP_PTR_GET_IMM(class_type->mutable_data);
1535 		if (mutable_data) {
1536 			ce_flags = mutable_data->ce_flags;
1537 			if (ce_flags & ZEND_ACC_CONSTANTS_UPDATED) {
1538 				return SUCCESS;
1539 			}
1540 		} else {
1541 			mutable_data = zend_allocate_mutable_data(class_type);
1542 		}
1543 	}
1544 
1545 	if (class_type->parent) {
1546 		if (UNEXPECTED(zend_update_class_constants(class_type->parent) != SUCCESS)) {
1547 			return FAILURE;
1548 		}
1549 	}
1550 
1551 	if (ce_flags & ZEND_ACC_HAS_AST_CONSTANTS) {
1552 		HashTable *constants_table;
1553 
1554 		if (uses_mutable_data) {
1555 			constants_table = mutable_data->constants_table;
1556 			if (!constants_table) {
1557 				constants_table = zend_separate_class_constants_table(class_type);
1558 			}
1559 		} else {
1560 			constants_table = &class_type->constants_table;
1561 		}
1562 
1563 		zend_string *name;
1564 		ZEND_HASH_MAP_FOREACH_STR_KEY_VAL(constants_table, name, val) {
1565 			c = Z_PTR_P(val);
1566 			if (Z_TYPE(c->value) == IS_CONSTANT_AST) {
1567 				if (c->ce != class_type) {
1568 					Z_PTR_P(val) = c = zend_hash_find_ptr(CE_CONSTANTS_TABLE(c->ce), name);
1569 					if (Z_TYPE(c->value) != IS_CONSTANT_AST) {
1570 						continue;
1571 					}
1572 				}
1573 
1574 				val = &c->value;
1575 				if (UNEXPECTED(zend_update_class_constant(c, name, c->ce) != SUCCESS)) {
1576 					return FAILURE;
1577 				}
1578 			}
1579 		} ZEND_HASH_FOREACH_END();
1580 	}
1581 
1582 	if (class_type->default_static_members_count) {
1583 		static_members_table = CE_STATIC_MEMBERS(class_type);
1584 		if (!static_members_table) {
1585 			zend_class_init_statics(class_type);
1586 			static_members_table = CE_STATIC_MEMBERS(class_type);
1587 		}
1588 	}
1589 
1590 	default_properties_table = class_type->default_properties_table;
1591 	if (uses_mutable_data && (ce_flags & ZEND_ACC_HAS_AST_PROPERTIES)) {
1592 		zval *src, *dst, *end;
1593 
1594 		default_properties_table = mutable_data->default_properties_table;
1595 		if (!default_properties_table) {
1596 			default_properties_table = zend_arena_alloc(&CG(arena), sizeof(zval) * class_type->default_properties_count);
1597 			src = class_type->default_properties_table;
1598 			dst = default_properties_table;
1599 			end = dst + class_type->default_properties_count;
1600 			do {
1601 				ZVAL_COPY_PROP(dst, src);
1602 				src++;
1603 				dst++;
1604 			} while (dst != end);
1605 			mutable_data->default_properties_table = default_properties_table;
1606 		}
1607 	}
1608 
1609 	if (ce_flags & (ZEND_ACC_HAS_AST_PROPERTIES|ZEND_ACC_HAS_AST_STATICS)) {
1610 		zend_property_info *prop_info;
1611 
1612 		/* Use the default properties table to also update initializers of private properties
1613 		 * that have been shadowed in a child class. */
1614 		for (uint32_t i = 0; i < class_type->default_properties_count; i++) {
1615 			val = &default_properties_table[i];
1616 			prop_info = class_type->properties_info_table[i];
1617 			if (Z_TYPE_P(val) == IS_CONSTANT_AST
1618 					&& UNEXPECTED(update_property(val, prop_info) != SUCCESS)) {
1619 				return FAILURE;
1620 			}
1621 		}
1622 
1623 		if (class_type->default_static_members_count) {
1624 			ZEND_HASH_MAP_FOREACH_PTR(&class_type->properties_info, prop_info) {
1625 				if (prop_info->flags & ZEND_ACC_STATIC) {
1626 					val = static_members_table + prop_info->offset;
1627 					if (Z_TYPE_P(val) == IS_CONSTANT_AST
1628 							&& UNEXPECTED(update_property(val, prop_info) != SUCCESS)) {
1629 						return FAILURE;
1630 					}
1631 				}
1632 			} ZEND_HASH_FOREACH_END();
1633 		}
1634 	}
1635 
1636 	if (class_type->type == ZEND_USER_CLASS && class_type->ce_flags & ZEND_ACC_ENUM && class_type->enum_backing_type != IS_UNDEF) {
1637 		if (zend_enum_build_backed_enum_table(class_type) == FAILURE) {
1638 			return FAILURE;
1639 		}
1640 	}
1641 
1642 	ce_flags |= ZEND_ACC_CONSTANTS_UPDATED;
1643 	ce_flags &= ~ZEND_ACC_HAS_AST_CONSTANTS;
1644 	ce_flags &= ~ZEND_ACC_HAS_AST_PROPERTIES;
1645 	ce_flags &= ~ZEND_ACC_HAS_AST_STATICS;
1646 	if (uses_mutable_data) {
1647 		mutable_data->ce_flags = ce_flags;
1648 	} else {
1649 		class_type->ce_flags = ce_flags;
1650 	}
1651 
1652 	return SUCCESS;
1653 }
1654 /* }}} */
1655 
_object_properties_init(zend_object * object,zend_class_entry * class_type)1656 static zend_always_inline void _object_properties_init(zend_object *object, zend_class_entry *class_type) /* {{{ */
1657 {
1658 	if (class_type->default_properties_count) {
1659 		zval *src = CE_DEFAULT_PROPERTIES_TABLE(class_type);
1660 		zval *dst = object->properties_table;
1661 		zval *end = src + class_type->default_properties_count;
1662 
1663 		if (UNEXPECTED(class_type->type == ZEND_INTERNAL_CLASS)) {
1664 			/* We don't have to account for refcounting because
1665 			 * zend_declare_typed_property() disallows refcounted defaults for internal classes. */
1666 			do {
1667 				ZEND_ASSERT(!Z_REFCOUNTED_P(src));
1668 				ZVAL_COPY_VALUE_PROP(dst, src);
1669 				src++;
1670 				dst++;
1671 			} while (src != end);
1672 		} else {
1673 			do {
1674 				ZVAL_COPY_PROP(dst, src);
1675 				src++;
1676 				dst++;
1677 			} while (src != end);
1678 		}
1679 	}
1680 }
1681 /* }}} */
1682 
object_properties_init(zend_object * object,zend_class_entry * class_type)1683 ZEND_API void object_properties_init(zend_object *object, zend_class_entry *class_type) /* {{{ */
1684 {
1685 	object->properties = NULL;
1686 	_object_properties_init(object, class_type);
1687 }
1688 /* }}} */
1689 
object_properties_init_ex(zend_object * object,HashTable * properties)1690 ZEND_API void object_properties_init_ex(zend_object *object, HashTable *properties) /* {{{ */
1691 {
1692 	object->properties = properties;
1693 	if (object->ce->default_properties_count) {
1694 		zval *prop;
1695 		zend_string *key;
1696 		zend_property_info *property_info;
1697 
1698 		ZEND_HASH_MAP_FOREACH_STR_KEY_VAL(properties, key, prop) {
1699 			property_info = zend_get_property_info(object->ce, key, 1);
1700 			if (property_info != ZEND_WRONG_PROPERTY_INFO &&
1701 			    property_info &&
1702 			    (property_info->flags & ZEND_ACC_STATIC) == 0) {
1703 				zval *slot = OBJ_PROP(object, property_info->offset);
1704 
1705 				if (ZEND_TYPE_IS_SET(property_info->type)) {
1706 					zval tmp;
1707 
1708 					ZVAL_COPY_VALUE(&tmp, prop);
1709 					if (UNEXPECTED(!zend_verify_property_type(property_info, &tmp, 0))) {
1710 						continue;
1711 					}
1712 					ZVAL_COPY_VALUE(slot, &tmp);
1713 				} else {
1714 					ZVAL_COPY_VALUE(slot, prop);
1715 				}
1716 				ZVAL_INDIRECT(prop, slot);
1717 			}
1718 		} ZEND_HASH_FOREACH_END();
1719 	}
1720 }
1721 /* }}} */
1722 
object_properties_load(zend_object * object,HashTable * properties)1723 ZEND_API void object_properties_load(zend_object *object, HashTable *properties) /* {{{ */
1724 {
1725 	zval *prop, tmp;
1726 	zend_string *key;
1727 	zend_long h;
1728 	zend_property_info *property_info;
1729 
1730 	ZEND_HASH_FOREACH_KEY_VAL(properties, h, key, prop) {
1731 		if (key) {
1732 			if (ZSTR_VAL(key)[0] == '\0') {
1733 				const char *class_name, *prop_name;
1734 				size_t prop_name_len;
1735 				if (zend_unmangle_property_name_ex(key, &class_name, &prop_name, &prop_name_len) == SUCCESS) {
1736 					zend_string *pname = zend_string_init(prop_name, prop_name_len, 0);
1737 					zend_class_entry *prev_scope = EG(fake_scope);
1738 					if (class_name && class_name[0] != '*') {
1739 						zend_string *cname = zend_string_init(class_name, strlen(class_name), 0);
1740 						EG(fake_scope) = zend_lookup_class(cname);
1741 						zend_string_release_ex(cname, 0);
1742 					}
1743 					property_info = zend_get_property_info(object->ce, pname, 1);
1744 					zend_string_release_ex(pname, 0);
1745 					EG(fake_scope) = prev_scope;
1746 				} else {
1747 					property_info = ZEND_WRONG_PROPERTY_INFO;
1748 				}
1749 			} else {
1750 				property_info = zend_get_property_info(object->ce, key, 1);
1751 			}
1752 			if (property_info != ZEND_WRONG_PROPERTY_INFO &&
1753 				property_info &&
1754 				(property_info->flags & ZEND_ACC_STATIC) == 0) {
1755 				zval *slot = OBJ_PROP(object, property_info->offset);
1756 				zval_ptr_dtor(slot);
1757 				ZVAL_COPY_VALUE(slot, prop);
1758 				zval_add_ref(slot);
1759 				if (object->properties) {
1760 					ZVAL_INDIRECT(&tmp, slot);
1761 					zend_hash_update(object->properties, key, &tmp);
1762 				}
1763 			} else {
1764 				if (UNEXPECTED(object->ce->ce_flags & ZEND_ACC_NO_DYNAMIC_PROPERTIES)) {
1765 					zend_throw_error(NULL, "Cannot create dynamic property %s::$%s",
1766 						ZSTR_VAL(object->ce->name), property_info != ZEND_WRONG_PROPERTY_INFO ? zend_get_unmangled_property_name(key): "");
1767 					return;
1768 				} else if (!(object->ce->ce_flags & ZEND_ACC_ALLOW_DYNAMIC_PROPERTIES)) {
1769 					zend_error(E_DEPRECATED, "Creation of dynamic property %s::$%s is deprecated",
1770 						ZSTR_VAL(object->ce->name), property_info != ZEND_WRONG_PROPERTY_INFO ? zend_get_unmangled_property_name(key): "");
1771 				}
1772 
1773 				prop = zend_hash_update(zend_std_get_properties_ex(object), key, prop);
1774 				zval_add_ref(prop);
1775 			}
1776 		} else {
1777 			if (UNEXPECTED(object->ce->ce_flags & ZEND_ACC_NO_DYNAMIC_PROPERTIES)) {
1778 				zend_throw_error(NULL, "Cannot create dynamic property %s::$" ZEND_LONG_FMT, ZSTR_VAL(object->ce->name), h);
1779 				return;
1780 			} else if (!(object->ce->ce_flags & ZEND_ACC_ALLOW_DYNAMIC_PROPERTIES)) {
1781 				zend_error(E_DEPRECATED, "Creation of dynamic property %s::$" ZEND_LONG_FMT " is deprecated",
1782 					ZSTR_VAL(object->ce->name), h);
1783 			}
1784 
1785 			prop = zend_hash_index_update(zend_std_get_properties_ex(object), h, prop);
1786 			zval_add_ref(prop);
1787 		}
1788 	} ZEND_HASH_FOREACH_END();
1789 }
1790 /* }}} */
1791 
1792 /* This function requires 'properties' to contain all props declared in the
1793  * class and all props being public. If only a subset is given or the class
1794  * has protected members then you need to merge the properties separately by
1795  * calling zend_merge_properties(). */
_object_and_properties_init(zval * arg,zend_class_entry * class_type,HashTable * properties)1796 static zend_always_inline zend_result _object_and_properties_init(zval *arg, zend_class_entry *class_type, HashTable *properties) /* {{{ */
1797 {
1798 	if (UNEXPECTED(class_type->ce_flags & ZEND_ACC_UNINSTANTIABLE)) {
1799 		if (class_type->ce_flags & ZEND_ACC_INTERFACE) {
1800 			zend_throw_error(NULL, "Cannot instantiate interface %s", ZSTR_VAL(class_type->name));
1801 		} else if (class_type->ce_flags & ZEND_ACC_TRAIT) {
1802 			zend_throw_error(NULL, "Cannot instantiate trait %s", ZSTR_VAL(class_type->name));
1803 		} else if (class_type->ce_flags & ZEND_ACC_ENUM) {
1804 			zend_throw_error(NULL, "Cannot instantiate enum %s", ZSTR_VAL(class_type->name));
1805 		} else {
1806 			ZEND_ASSERT(class_type->ce_flags & (ZEND_ACC_IMPLICIT_ABSTRACT_CLASS|ZEND_ACC_EXPLICIT_ABSTRACT_CLASS));
1807 			zend_throw_error(NULL, "Cannot instantiate abstract class %s", ZSTR_VAL(class_type->name));
1808 		}
1809 		ZVAL_NULL(arg);
1810 		Z_OBJ_P(arg) = NULL;
1811 		return FAILURE;
1812 	}
1813 
1814 	if (UNEXPECTED(!(class_type->ce_flags & ZEND_ACC_CONSTANTS_UPDATED))) {
1815 		if (UNEXPECTED(zend_update_class_constants(class_type) != SUCCESS)) {
1816 			ZVAL_NULL(arg);
1817 			Z_OBJ_P(arg) = NULL;
1818 			return FAILURE;
1819 		}
1820 	}
1821 
1822 	if (class_type->create_object == NULL) {
1823 		zend_object *obj = zend_objects_new(class_type);
1824 
1825 		ZVAL_OBJ(arg, obj);
1826 		if (properties) {
1827 			object_properties_init_ex(obj, properties);
1828 		} else {
1829 			_object_properties_init(obj, class_type);
1830 		}
1831 	} else {
1832 		ZVAL_OBJ(arg, class_type->create_object(class_type));
1833 	}
1834 	return SUCCESS;
1835 }
1836 /* }}} */
1837 
object_and_properties_init(zval * arg,zend_class_entry * class_type,HashTable * properties)1838 ZEND_API zend_result object_and_properties_init(zval *arg, zend_class_entry *class_type, HashTable *properties) /* {{{ */
1839 {
1840 	return _object_and_properties_init(arg, class_type, properties);
1841 }
1842 /* }}} */
1843 
object_init_ex(zval * arg,zend_class_entry * class_type)1844 ZEND_API zend_result object_init_ex(zval *arg, zend_class_entry *class_type) /* {{{ */
1845 {
1846 	return _object_and_properties_init(arg, class_type, NULL);
1847 }
1848 /* }}} */
1849 
object_init_with_constructor(zval * arg,zend_class_entry * class_type,uint32_t param_count,zval * params,HashTable * named_params)1850 ZEND_API zend_result object_init_with_constructor(zval *arg, zend_class_entry *class_type, uint32_t param_count, zval *params, HashTable *named_params) /* {{{ */
1851 {
1852 	zend_result status = _object_and_properties_init(arg, class_type, NULL);
1853 	if (UNEXPECTED(status == FAILURE)) {
1854 		ZVAL_UNDEF(arg);
1855 		return FAILURE;
1856 	}
1857 	zend_object *obj = Z_OBJ_P(arg);
1858 	zend_function *constructor = obj->handlers->get_constructor(obj);
1859 	if (constructor == NULL) {
1860 		/* The constructor can be NULL for 2 different reasons:
1861 		 * - It is not defined
1862 		 * - We are not allowed to call the constructor (e.g. private, or internal opaque class)
1863 		 *   and an exception has been thrown
1864 		 * in the former case, we are (mostly) done and the object is initialized,
1865 		 * in the latter we need to destroy the object as initialization failed
1866 		 */
1867 		if (UNEXPECTED(EG(exception))) {
1868 			zval_ptr_dtor(arg);
1869 			ZVAL_UNDEF(arg);
1870 			return FAILURE;
1871 		}
1872 
1873 		/* Surprisingly, this is the only case where internal classes will allow to pass extra arguments
1874 		 * However, if there are named arguments (and it is not empty),
1875 		 * an Error must be thrown to be consistent with new ClassName() */
1876 		if (UNEXPECTED(named_params != NULL && zend_hash_num_elements(named_params) != 0)) {
1877 			/* Throw standard Error */
1878 			zend_string *arg_name = NULL;
1879 			zend_hash_get_current_key(named_params, &arg_name, /* num_index */ NULL);
1880 			ZEND_ASSERT(arg_name != NULL);
1881 			zend_throw_error(NULL, "Unknown named parameter $%s", ZSTR_VAL(arg_name));
1882 			zend_string_release(arg_name);
1883 			/* Do not call destructor, free object, and set arg to IS_UNDEF */
1884 			zend_object_store_ctor_failed(obj);
1885 			zval_ptr_dtor(arg);
1886 			ZVAL_UNDEF(arg);
1887 			return FAILURE;
1888 		} else {
1889 			return SUCCESS;
1890 		}
1891 	}
1892 	/* A constructor should not return a value, however if an exception is thrown
1893 	 * zend_call_known_function() will set the retval to IS_UNDEF */
1894 	zval retval;
1895 	zend_call_known_function(
1896 		constructor,
1897 		obj,
1898 		class_type,
1899 		&retval,
1900 		param_count,
1901 		params,
1902 		named_params
1903 	);
1904 	if (Z_TYPE(retval) == IS_UNDEF) {
1905 		/* Do not call destructor, free object, and set arg to IS_UNDEF */
1906 		zend_object_store_ctor_failed(obj);
1907 		zval_ptr_dtor(arg);
1908 		ZVAL_UNDEF(arg);
1909 		return FAILURE;
1910 	} else {
1911 		/* Unlikely, but user constructors may return any value they want */
1912 		zval_ptr_dtor(&retval);
1913 		return SUCCESS;
1914 	}
1915 }
1916 /* }}} */
1917 
object_init(zval * arg)1918 ZEND_API void object_init(zval *arg) /* {{{ */
1919 {
1920 	ZVAL_OBJ(arg, zend_objects_new(zend_standard_class_def));
1921 }
1922 /* }}} */
1923 
add_assoc_long_ex(zval * arg,const char * key,size_t key_len,zend_long n)1924 ZEND_API void add_assoc_long_ex(zval *arg, const char *key, size_t key_len, zend_long n) /* {{{ */
1925 {
1926 	zval tmp;
1927 
1928 	ZVAL_LONG(&tmp, n);
1929 	zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
1930 }
1931 /* }}} */
1932 
add_assoc_null_ex(zval * arg,const char * key,size_t key_len)1933 ZEND_API void add_assoc_null_ex(zval *arg, const char *key, size_t key_len) /* {{{ */
1934 {
1935 	zval tmp;
1936 
1937 	ZVAL_NULL(&tmp);
1938 	zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
1939 }
1940 /* }}} */
1941 
add_assoc_bool_ex(zval * arg,const char * key,size_t key_len,bool b)1942 ZEND_API void add_assoc_bool_ex(zval *arg, const char *key, size_t key_len, bool b) /* {{{ */
1943 {
1944 	zval tmp;
1945 
1946 	ZVAL_BOOL(&tmp, b);
1947 	zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
1948 }
1949 /* }}} */
1950 
add_assoc_resource_ex(zval * arg,const char * key,size_t key_len,zend_resource * r)1951 ZEND_API void add_assoc_resource_ex(zval *arg, const char *key, size_t key_len, zend_resource *r) /* {{{ */
1952 {
1953 	zval tmp;
1954 
1955 	ZVAL_RES(&tmp, r);
1956 	zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
1957 }
1958 /* }}} */
1959 
add_assoc_double_ex(zval * arg,const char * key,size_t key_len,double d)1960 ZEND_API void add_assoc_double_ex(zval *arg, const char *key, size_t key_len, double d) /* {{{ */
1961 {
1962 	zval tmp;
1963 
1964 	ZVAL_DOUBLE(&tmp, d);
1965 	zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
1966 }
1967 /* }}} */
1968 
add_assoc_str_ex(zval * arg,const char * key,size_t key_len,zend_string * str)1969 ZEND_API void add_assoc_str_ex(zval *arg, const char *key, size_t key_len, zend_string *str) /* {{{ */
1970 {
1971 	zval tmp;
1972 
1973 	ZVAL_STR(&tmp, str);
1974 	zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
1975 }
1976 /* }}} */
1977 
add_assoc_string_ex(zval * arg,const char * key,size_t key_len,const char * str)1978 ZEND_API void add_assoc_string_ex(zval *arg, const char *key, size_t key_len, const char *str) /* {{{ */
1979 {
1980 	zval tmp;
1981 
1982 	ZVAL_STRING(&tmp, str);
1983 	zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
1984 }
1985 /* }}} */
1986 
add_assoc_stringl_ex(zval * arg,const char * key,size_t key_len,const char * str,size_t length)1987 ZEND_API void add_assoc_stringl_ex(zval *arg, const char *key, size_t key_len, const char *str, size_t length) /* {{{ */
1988 {
1989 	zval tmp;
1990 
1991 	ZVAL_STRINGL(&tmp, str, length);
1992 	zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
1993 }
1994 /* }}} */
1995 
add_assoc_array_ex(zval * arg,const char * key,size_t key_len,zend_array * arr)1996 ZEND_API void add_assoc_array_ex(zval *arg, const char *key, size_t key_len, zend_array *arr) /* {{{ */
1997 {
1998 	zval tmp;
1999 
2000 	ZVAL_ARR(&tmp, arr);
2001 	zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
2002 }
2003 /* }}} */
2004 
add_assoc_object_ex(zval * arg,const char * key,size_t key_len,zend_object * obj)2005 ZEND_API void add_assoc_object_ex(zval *arg, const char *key, size_t key_len, zend_object *obj) /* {{{ */
2006 {
2007 	zval tmp;
2008 
2009 	ZVAL_OBJ(&tmp, obj);
2010 	zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
2011 }
2012 /* }}} */
2013 
add_assoc_reference_ex(zval * arg,const char * key,size_t key_len,zend_reference * ref)2014 ZEND_API void add_assoc_reference_ex(zval *arg, const char *key, size_t key_len, zend_reference *ref) /* {{{ */
2015 {
2016 	zval tmp;
2017 
2018 	ZVAL_REF(&tmp, ref);
2019 	zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
2020 }
2021 /* }}} */
2022 
add_assoc_zval_ex(zval * arg,const char * key,size_t key_len,zval * value)2023 ZEND_API void add_assoc_zval_ex(zval *arg, const char *key, size_t key_len, zval *value) /* {{{ */
2024 {
2025 	zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, value);
2026 }
2027 /* }}} */
2028 
add_index_long(zval * arg,zend_ulong index,zend_long n)2029 ZEND_API void add_index_long(zval *arg, zend_ulong index, zend_long n) /* {{{ */
2030 {
2031 	zval tmp;
2032 
2033 	ZVAL_LONG(&tmp, n);
2034 	zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
2035 }
2036 /* }}} */
2037 
add_index_null(zval * arg,zend_ulong index)2038 ZEND_API void add_index_null(zval *arg, zend_ulong index) /* {{{ */
2039 {
2040 	zval tmp;
2041 
2042 	ZVAL_NULL(&tmp);
2043 	zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
2044 }
2045 /* }}} */
2046 
add_index_bool(zval * arg,zend_ulong index,bool b)2047 ZEND_API void add_index_bool(zval *arg, zend_ulong index, bool b) /* {{{ */
2048 {
2049 	zval tmp;
2050 
2051 	ZVAL_BOOL(&tmp, b);
2052 	zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
2053 }
2054 /* }}} */
2055 
add_index_resource(zval * arg,zend_ulong index,zend_resource * r)2056 ZEND_API void add_index_resource(zval *arg, zend_ulong index, zend_resource *r) /* {{{ */
2057 {
2058 	zval tmp;
2059 
2060 	ZVAL_RES(&tmp, r);
2061 	zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
2062 }
2063 /* }}} */
2064 
add_index_double(zval * arg,zend_ulong index,double d)2065 ZEND_API void add_index_double(zval *arg, zend_ulong index, double d) /* {{{ */
2066 {
2067 	zval tmp;
2068 
2069 	ZVAL_DOUBLE(&tmp, d);
2070 	zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
2071 }
2072 /* }}} */
2073 
add_index_str(zval * arg,zend_ulong index,zend_string * str)2074 ZEND_API void add_index_str(zval *arg, zend_ulong index, zend_string *str) /* {{{ */
2075 {
2076 	zval tmp;
2077 
2078 	ZVAL_STR(&tmp, str);
2079 	zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
2080 }
2081 /* }}} */
2082 
add_index_string(zval * arg,zend_ulong index,const char * str)2083 ZEND_API void add_index_string(zval *arg, zend_ulong index, const char *str) /* {{{ */
2084 {
2085 	zval tmp;
2086 
2087 	ZVAL_STRING(&tmp, str);
2088 	zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
2089 }
2090 /* }}} */
2091 
add_index_stringl(zval * arg,zend_ulong index,const char * str,size_t length)2092 ZEND_API void add_index_stringl(zval *arg, zend_ulong index, const char *str, size_t length) /* {{{ */
2093 {
2094 	zval tmp;
2095 
2096 	ZVAL_STRINGL(&tmp, str, length);
2097 	zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
2098 }
2099 /* }}} */
2100 
add_index_array(zval * arg,zend_ulong index,zend_array * arr)2101 ZEND_API void add_index_array(zval *arg, zend_ulong index, zend_array *arr) /* {{{ */
2102 {
2103 	zval tmp;
2104 
2105 	ZVAL_ARR(&tmp, arr);
2106 	zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
2107 }
2108 /* }}} */
2109 
add_index_object(zval * arg,zend_ulong index,zend_object * obj)2110 ZEND_API void add_index_object(zval *arg, zend_ulong index, zend_object *obj) /* {{{ */
2111 {
2112 	zval tmp;
2113 
2114 	ZVAL_OBJ(&tmp, obj);
2115 	zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
2116 }
2117 /* }}} */
2118 
add_index_reference(zval * arg,zend_ulong index,zend_reference * ref)2119 ZEND_API void add_index_reference(zval *arg, zend_ulong index, zend_reference *ref) /* {{{ */
2120 {
2121 	zval tmp;
2122 
2123 	ZVAL_REF(&tmp, ref);
2124 	zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
2125 }
2126 /* }}} */
2127 
add_next_index_long(zval * arg,zend_long n)2128 ZEND_API zend_result add_next_index_long(zval *arg, zend_long n) /* {{{ */
2129 {
2130 	zval tmp;
2131 
2132 	ZVAL_LONG(&tmp, n);
2133 	return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
2134 }
2135 /* }}} */
2136 
add_next_index_null(zval * arg)2137 ZEND_API zend_result add_next_index_null(zval *arg) /* {{{ */
2138 {
2139 	zval tmp;
2140 
2141 	ZVAL_NULL(&tmp);
2142 	return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
2143 }
2144 /* }}} */
2145 
add_next_index_bool(zval * arg,bool b)2146 ZEND_API zend_result add_next_index_bool(zval *arg, bool b) /* {{{ */
2147 {
2148 	zval tmp;
2149 
2150 	ZVAL_BOOL(&tmp, b);
2151 	return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
2152 }
2153 /* }}} */
2154 
add_next_index_resource(zval * arg,zend_resource * r)2155 ZEND_API zend_result add_next_index_resource(zval *arg, zend_resource *r) /* {{{ */
2156 {
2157 	zval tmp;
2158 
2159 	ZVAL_RES(&tmp, r);
2160 	return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
2161 }
2162 /* }}} */
2163 
add_next_index_double(zval * arg,double d)2164 ZEND_API zend_result add_next_index_double(zval *arg, double d) /* {{{ */
2165 {
2166 	zval tmp;
2167 
2168 	ZVAL_DOUBLE(&tmp, d);
2169 	return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
2170 }
2171 /* }}} */
2172 
add_next_index_str(zval * arg,zend_string * str)2173 ZEND_API zend_result add_next_index_str(zval *arg, zend_string *str) /* {{{ */
2174 {
2175 	zval tmp;
2176 
2177 	ZVAL_STR(&tmp, str);
2178 	return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
2179 }
2180 /* }}} */
2181 
add_next_index_string(zval * arg,const char * str)2182 ZEND_API zend_result add_next_index_string(zval *arg, const char *str) /* {{{ */
2183 {
2184 	zval tmp;
2185 
2186 	ZVAL_STRING(&tmp, str);
2187 	return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
2188 }
2189 /* }}} */
2190 
add_next_index_stringl(zval * arg,const char * str,size_t length)2191 ZEND_API zend_result add_next_index_stringl(zval *arg, const char *str, size_t length) /* {{{ */
2192 {
2193 	zval tmp;
2194 
2195 	ZVAL_STRINGL(&tmp, str, length);
2196 	return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
2197 }
2198 /* }}} */
2199 
add_next_index_array(zval * arg,zend_array * arr)2200 ZEND_API zend_result add_next_index_array(zval *arg, zend_array *arr) /* {{{ */
2201 {
2202 	zval tmp;
2203 
2204 	ZVAL_ARR(&tmp, arr);
2205 	return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
2206 }
2207 /* }}} */
2208 
add_next_index_object(zval * arg,zend_object * obj)2209 ZEND_API zend_result add_next_index_object(zval *arg, zend_object *obj) /* {{{ */
2210 {
2211 	zval tmp;
2212 
2213 	ZVAL_OBJ(&tmp, obj);
2214 	return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
2215 }
2216 /* }}} */
2217 
add_next_index_reference(zval * arg,zend_reference * ref)2218 ZEND_API zend_result add_next_index_reference(zval *arg, zend_reference *ref) /* {{{ */
2219 {
2220 	zval tmp;
2221 
2222 	ZVAL_REF(&tmp, ref);
2223 	return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
2224 }
2225 /* }}} */
2226 
array_set_zval_key(HashTable * ht,zval * key,zval * value)2227 ZEND_API zend_result array_set_zval_key(HashTable *ht, zval *key, zval *value) /* {{{ */
2228 {
2229 	zval *result;
2230 
2231 	switch (Z_TYPE_P(key)) {
2232 		case IS_STRING:
2233 			result = zend_symtable_update(ht, Z_STR_P(key), value);
2234 			break;
2235 		case IS_NULL:
2236 			result = zend_hash_update(ht, ZSTR_EMPTY_ALLOC(), value);
2237 			break;
2238 		case IS_RESOURCE:
2239 			zend_use_resource_as_offset(key);
2240 			result = zend_hash_index_update(ht, Z_RES_HANDLE_P(key), value);
2241 			break;
2242 		case IS_FALSE:
2243 			result = zend_hash_index_update(ht, 0, value);
2244 			break;
2245 		case IS_TRUE:
2246 			result = zend_hash_index_update(ht, 1, value);
2247 			break;
2248 		case IS_LONG:
2249 			result = zend_hash_index_update(ht, Z_LVAL_P(key), value);
2250 			break;
2251 		case IS_DOUBLE:
2252 			result = zend_hash_index_update(ht, zend_dval_to_lval_safe(Z_DVAL_P(key)), value);
2253 			break;
2254 		default:
2255 			zend_illegal_container_offset(ZSTR_KNOWN(ZEND_STR_ARRAY), key, BP_VAR_W);
2256 			result = NULL;
2257 	}
2258 
2259 	if (result) {
2260 		Z_TRY_ADDREF_P(result);
2261 		return SUCCESS;
2262 	} else {
2263 		return FAILURE;
2264 	}
2265 }
2266 /* }}} */
2267 
add_property_long_ex(zval * arg,const char * key,size_t key_len,zend_long n)2268 ZEND_API void add_property_long_ex(zval *arg, const char *key, size_t key_len, zend_long n) /* {{{ */
2269 {
2270 	zval tmp;
2271 
2272 	ZVAL_LONG(&tmp, n);
2273 	add_property_zval_ex(arg, key, key_len, &tmp);
2274 }
2275 /* }}} */
2276 
add_property_bool_ex(zval * arg,const char * key,size_t key_len,zend_long b)2277 ZEND_API void add_property_bool_ex(zval *arg, const char *key, size_t key_len, zend_long b) /* {{{ */
2278 {
2279 	zval tmp;
2280 
2281 	ZVAL_BOOL(&tmp, b);
2282 	add_property_zval_ex(arg, key, key_len, &tmp);
2283 }
2284 /* }}} */
2285 
add_property_null_ex(zval * arg,const char * key,size_t key_len)2286 ZEND_API void add_property_null_ex(zval *arg, const char *key, size_t key_len) /* {{{ */
2287 {
2288 	zval tmp;
2289 
2290 	ZVAL_NULL(&tmp);
2291 	add_property_zval_ex(arg, key, key_len, &tmp);
2292 }
2293 /* }}} */
2294 
add_property_resource_ex(zval * arg,const char * key,size_t key_len,zend_resource * r)2295 ZEND_API void add_property_resource_ex(zval *arg, const char *key, size_t key_len, zend_resource *r) /* {{{ */
2296 {
2297 	zval tmp;
2298 
2299 	ZVAL_RES(&tmp, r);
2300 	add_property_zval_ex(arg, key, key_len, &tmp);
2301 	zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
2302 }
2303 /* }}} */
2304 
add_property_double_ex(zval * arg,const char * key,size_t key_len,double d)2305 ZEND_API void add_property_double_ex(zval *arg, const char *key, size_t key_len, double d) /* {{{ */
2306 {
2307 	zval tmp;
2308 
2309 	ZVAL_DOUBLE(&tmp, d);
2310 	add_property_zval_ex(arg, key, key_len, &tmp);
2311 }
2312 /* }}} */
2313 
add_property_str_ex(zval * arg,const char * key,size_t key_len,zend_string * str)2314 ZEND_API void add_property_str_ex(zval *arg, const char *key, size_t key_len, zend_string *str) /* {{{ */
2315 {
2316 	zval tmp;
2317 
2318 	ZVAL_STR(&tmp, str);
2319 	add_property_zval_ex(arg, key, key_len, &tmp);
2320 	zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
2321 }
2322 /* }}} */
2323 
add_property_string_ex(zval * arg,const char * key,size_t key_len,const char * str)2324 ZEND_API void add_property_string_ex(zval *arg, const char *key, size_t key_len, const char *str) /* {{{ */
2325 {
2326 	zval tmp;
2327 
2328 	ZVAL_STRING(&tmp, str);
2329 	add_property_zval_ex(arg, key, key_len, &tmp);
2330 	zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
2331 }
2332 /* }}} */
2333 
add_property_stringl_ex(zval * arg,const char * key,size_t key_len,const char * str,size_t length)2334 ZEND_API void add_property_stringl_ex(zval *arg, const char *key, size_t key_len, const char *str, size_t length) /* {{{ */
2335 {
2336 	zval tmp;
2337 
2338 	ZVAL_STRINGL(&tmp, str, length);
2339 	add_property_zval_ex(arg, key, key_len, &tmp);
2340 	zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
2341 }
2342 /* }}} */
2343 
add_property_array_ex(zval * arg,const char * key,size_t key_len,zend_array * arr)2344 ZEND_API void add_property_array_ex(zval *arg, const char *key, size_t key_len, zend_array *arr) /* {{{ */
2345 {
2346 	zval tmp;
2347 
2348 	ZVAL_ARR(&tmp, arr);
2349 	add_property_zval_ex(arg, key, key_len, &tmp);
2350 	zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
2351 }
2352 /* }}} */
2353 
add_property_object_ex(zval * arg,const char * key,size_t key_len,zend_object * obj)2354 ZEND_API void add_property_object_ex(zval *arg, const char *key, size_t key_len, zend_object *obj) /* {{{ */
2355 {
2356 	zval tmp;
2357 
2358 	ZVAL_OBJ(&tmp, obj);
2359 	add_property_zval_ex(arg, key, key_len, &tmp);
2360 	zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
2361 }
2362 /* }}} */
2363 
add_property_reference_ex(zval * arg,const char * key,size_t key_len,zend_reference * ref)2364 ZEND_API void add_property_reference_ex(zval *arg, const char *key, size_t key_len, zend_reference *ref) /* {{{ */
2365 {
2366 	zval tmp;
2367 
2368 	ZVAL_REF(&tmp, ref);
2369 	add_property_zval_ex(arg, key, key_len, &tmp);
2370 	zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
2371 }
2372 /* }}} */
2373 
add_property_zval_ex(zval * arg,const char * key,size_t key_len,zval * value)2374 ZEND_API void add_property_zval_ex(zval *arg, const char *key, size_t key_len, zval *value) /* {{{ */
2375 {
2376 	zend_string *str;
2377 
2378 	str = zend_string_init(key, key_len, 0);
2379 	Z_OBJ_HANDLER_P(arg, write_property)(Z_OBJ_P(arg), str, value, NULL);
2380 	zend_string_release_ex(str, 0);
2381 }
2382 /* }}} */
2383 
zend_startup_module_ex(zend_module_entry * module)2384 ZEND_API zend_result zend_startup_module_ex(zend_module_entry *module) /* {{{ */
2385 {
2386 	size_t name_len;
2387 	zend_string *lcname;
2388 
2389 	if (module->module_started) {
2390 		return SUCCESS;
2391 	}
2392 	module->module_started = 1;
2393 
2394 	/* Check module dependencies */
2395 	if (module->deps) {
2396 		const zend_module_dep *dep = module->deps;
2397 
2398 		while (dep->name) {
2399 			if (dep->type == MODULE_DEP_REQUIRED) {
2400 				zend_module_entry *req_mod;
2401 
2402 				name_len = strlen(dep->name);
2403 				lcname = zend_string_alloc(name_len, 0);
2404 				zend_str_tolower_copy(ZSTR_VAL(lcname), dep->name, name_len);
2405 
2406 				if ((req_mod = zend_hash_find_ptr(&module_registry, lcname)) == NULL || !req_mod->module_started) {
2407 					zend_string_efree(lcname);
2408 					/* TODO: Check version relationship */
2409 					zend_error(E_CORE_WARNING, "Cannot load module \"%s\" because required module \"%s\" is not loaded", module->name, dep->name);
2410 					module->module_started = 0;
2411 					return FAILURE;
2412 				}
2413 				zend_string_efree(lcname);
2414 			}
2415 			++dep;
2416 		}
2417 	}
2418 
2419 	/* Initialize module globals */
2420 	if (module->globals_size) {
2421 #ifdef ZTS
2422 		ts_allocate_id(module->globals_id_ptr, module->globals_size, (ts_allocate_ctor) module->globals_ctor, (ts_allocate_dtor) module->globals_dtor);
2423 #else
2424 		if (module->globals_ctor) {
2425 			module->globals_ctor(module->globals_ptr);
2426 		}
2427 #endif
2428 	}
2429 	if (module->module_startup_func) {
2430 		EG(current_module) = module;
2431 		if (module->module_startup_func(module->type, module->module_number)==FAILURE) {
2432 			zend_error_noreturn(E_CORE_ERROR,"Unable to start %s module", module->name);
2433 			EG(current_module) = NULL;
2434 			return FAILURE;
2435 		}
2436 		EG(current_module) = NULL;
2437 	}
2438 	return SUCCESS;
2439 }
2440 /* }}} */
2441 
zend_startup_module_zval(zval * zv)2442 static int zend_startup_module_zval(zval *zv) /* {{{ */
2443 {
2444 	zend_module_entry *module = Z_PTR_P(zv);
2445 
2446 	return (zend_startup_module_ex(module) == SUCCESS) ? ZEND_HASH_APPLY_KEEP : ZEND_HASH_APPLY_REMOVE;
2447 }
2448 /* }}} */
2449 
zend_sort_modules(void * base,size_t count,size_t siz,compare_func_t compare,swap_func_t swp)2450 static void zend_sort_modules(void *base, size_t count, size_t siz, compare_func_t compare, swap_func_t swp) /* {{{ */
2451 {
2452 	Bucket *b1 = base;
2453 	Bucket *b2;
2454 	Bucket *end = b1 + count;
2455 	Bucket tmp;
2456 	zend_module_entry *m, *r;
2457 
2458 	while (b1 < end) {
2459 try_again:
2460 		m = (zend_module_entry*)Z_PTR(b1->val);
2461 		if (!m->module_started && m->deps) {
2462 			const zend_module_dep *dep = m->deps;
2463 			while (dep->name) {
2464 				if (dep->type == MODULE_DEP_REQUIRED || dep->type == MODULE_DEP_OPTIONAL) {
2465 					b2 = b1 + 1;
2466 					while (b2 < end) {
2467 						r = (zend_module_entry*)Z_PTR(b2->val);
2468 						if (strcasecmp(dep->name, r->name) == 0) {
2469 							tmp = *b1;
2470 							*b1 = *b2;
2471 							*b2 = tmp;
2472 							goto try_again;
2473 						}
2474 						b2++;
2475 					}
2476 				}
2477 				dep++;
2478 			}
2479 		}
2480 		b1++;
2481 	}
2482 }
2483 /* }}} */
2484 
zend_collect_module_handlers(void)2485 ZEND_API void zend_collect_module_handlers(void) /* {{{ */
2486 {
2487 	zend_module_entry *module;
2488 	int startup_count = 0;
2489 	int shutdown_count = 0;
2490 	int post_deactivate_count = 0;
2491 	int dl_loaded_count = 0;
2492 	zend_class_entry *ce;
2493 	int class_count = 0;
2494 
2495 	/* Collect extensions with request startup/shutdown handlers */
2496 	ZEND_HASH_MAP_FOREACH_PTR(&module_registry, module) {
2497 		if (module->request_startup_func) {
2498 			startup_count++;
2499 		}
2500 		if (module->request_shutdown_func) {
2501 			shutdown_count++;
2502 		}
2503 		if (module->post_deactivate_func) {
2504 			post_deactivate_count++;
2505 		}
2506 		if (module->handle) {
2507 			dl_loaded_count++;
2508 		}
2509 	} ZEND_HASH_FOREACH_END();
2510 	module_request_startup_handlers = (zend_module_entry**)realloc(
2511 		module_request_startup_handlers,
2512 	    sizeof(zend_module_entry*) *
2513 		(startup_count + 1 +
2514 		 shutdown_count + 1 +
2515 		 post_deactivate_count + 1));
2516 	module_request_startup_handlers[startup_count] = NULL;
2517 	module_request_shutdown_handlers = module_request_startup_handlers + startup_count + 1;
2518 	module_request_shutdown_handlers[shutdown_count] = NULL;
2519 	module_post_deactivate_handlers = module_request_shutdown_handlers + shutdown_count + 1;
2520 	module_post_deactivate_handlers[post_deactivate_count] = NULL;
2521 	/* Cannot reuse module_request_startup_handlers because it is freed in zend_destroy_modules, which happens before zend_unload_modules. */
2522 	modules_dl_loaded = realloc(modules_dl_loaded, sizeof(zend_module_entry*) * (dl_loaded_count + 1));
2523 	modules_dl_loaded[dl_loaded_count] = NULL;
2524 	startup_count = 0;
2525 
2526 	ZEND_HASH_MAP_FOREACH_PTR(&module_registry, module) {
2527 		if (module->request_startup_func) {
2528 			module_request_startup_handlers[startup_count++] = module;
2529 		}
2530 		if (module->request_shutdown_func) {
2531 			module_request_shutdown_handlers[--shutdown_count] = module;
2532 		}
2533 		if (module->post_deactivate_func) {
2534 			module_post_deactivate_handlers[--post_deactivate_count] = module;
2535 		}
2536 		if (module->handle) {
2537 			modules_dl_loaded[--dl_loaded_count] = module;
2538 		}
2539 	} ZEND_HASH_FOREACH_END();
2540 
2541 	/* Collect internal classes with static members */
2542 	ZEND_HASH_MAP_FOREACH_PTR(CG(class_table), ce) {
2543 		if (ce->type == ZEND_INTERNAL_CLASS &&
2544 		    ce->default_static_members_count > 0) {
2545 		    class_count++;
2546 		}
2547 	} ZEND_HASH_FOREACH_END();
2548 
2549 	class_cleanup_handlers = (zend_class_entry**)realloc(
2550 		class_cleanup_handlers,
2551 		sizeof(zend_class_entry*) *
2552 		(class_count + 1));
2553 	class_cleanup_handlers[class_count] = NULL;
2554 
2555 	if (class_count) {
2556 		ZEND_HASH_MAP_FOREACH_PTR(CG(class_table), ce) {
2557 			if (ce->type == ZEND_INTERNAL_CLASS &&
2558 			    ce->default_static_members_count > 0) {
2559 			    class_cleanup_handlers[--class_count] = ce;
2560 			}
2561 		} ZEND_HASH_FOREACH_END();
2562 	}
2563 }
2564 /* }}} */
2565 
zend_startup_modules(void)2566 ZEND_API void zend_startup_modules(void) /* {{{ */
2567 {
2568 	zend_hash_sort_ex(&module_registry, zend_sort_modules, NULL, 0);
2569 	zend_hash_apply(&module_registry, zend_startup_module_zval);
2570 }
2571 /* }}} */
2572 
zend_destroy_modules(void)2573 ZEND_API void zend_destroy_modules(void) /* {{{ */
2574 {
2575 	free(class_cleanup_handlers);
2576 	class_cleanup_handlers = NULL;
2577 	free(module_request_startup_handlers);
2578 	module_request_startup_handlers = NULL;
2579 	zend_hash_graceful_reverse_destroy(&module_registry);
2580 }
2581 /* }}} */
2582 
zend_register_module_ex(zend_module_entry * module,int module_type)2583 ZEND_API zend_module_entry* zend_register_module_ex(zend_module_entry *module, int module_type) /* {{{ */
2584 {
2585 	size_t name_len;
2586 	zend_string *lcname;
2587 	zend_module_entry *module_ptr;
2588 
2589 	if (!module) {
2590 		return NULL;
2591 	}
2592 
2593 #if 0
2594 	zend_printf("%s: Registering module %d\n", module->name, module->module_number);
2595 #endif
2596 
2597 	/* Check module dependencies */
2598 	if (module->deps) {
2599 		const zend_module_dep *dep = module->deps;
2600 
2601 		while (dep->name) {
2602 			if (dep->type == MODULE_DEP_CONFLICTS) {
2603 				name_len = strlen(dep->name);
2604 				lcname = zend_string_alloc(name_len, 0);
2605 				zend_str_tolower_copy(ZSTR_VAL(lcname), dep->name, name_len);
2606 
2607 				if (zend_hash_exists(&module_registry, lcname) || zend_get_extension(dep->name)) {
2608 					zend_string_efree(lcname);
2609 					/* TODO: Check version relationship */
2610 					zend_error(E_CORE_WARNING, "Cannot load module \"%s\" because conflicting module \"%s\" is already loaded", module->name, dep->name);
2611 					return NULL;
2612 				}
2613 				zend_string_efree(lcname);
2614 			}
2615 			++dep;
2616 		}
2617 	}
2618 
2619 	name_len = strlen(module->name);
2620 	lcname = zend_string_alloc(name_len, module_type == MODULE_PERSISTENT);
2621 	zend_str_tolower_copy(ZSTR_VAL(lcname), module->name, name_len);
2622 
2623 	int module_number = zend_next_free_module();
2624 
2625 	lcname = zend_new_interned_string(lcname);
2626 	if ((module_ptr = zend_hash_add_ptr(&module_registry, lcname, module)) == NULL) {
2627 		zend_error(E_CORE_WARNING, "Module \"%s\" is already loaded", module->name);
2628 		zend_string_release(lcname);
2629 		return NULL;
2630 	}
2631 	module = module_ptr;
2632 	EG(current_module) = module;
2633 
2634 	module->module_number = module_number;
2635 	module->type = module_type;
2636 
2637 	if (module->functions && zend_register_functions(NULL, module->functions, NULL, module_type)==FAILURE) {
2638 		zend_hash_del(&module_registry, lcname);
2639 		zend_string_release(lcname);
2640 		EG(current_module) = NULL;
2641 		zend_error(E_CORE_WARNING,"%s: Unable to register functions, unable to load", module->name);
2642 		return NULL;
2643 	}
2644 
2645 	EG(current_module) = NULL;
2646 	zend_string_release(lcname);
2647 	return module;
2648 }
2649 /* }}} */
2650 
zend_register_internal_module(zend_module_entry * module)2651 ZEND_API zend_module_entry* zend_register_internal_module(zend_module_entry *module) /* {{{ */
2652 {
2653 	return zend_register_module_ex(module, MODULE_PERSISTENT);
2654 }
2655 /* }}} */
2656 
zend_check_magic_method_args(uint32_t num_args,const zend_class_entry * ce,const zend_function * fptr,int error_type)2657 static void zend_check_magic_method_args(
2658 		uint32_t num_args, const zend_class_entry *ce, const zend_function *fptr, int error_type)
2659 {
2660 	if (fptr->common.num_args != num_args) {
2661 		if (num_args == 0) {
2662 			zend_error(error_type, "Method %s::%s() cannot take arguments",
2663 				ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
2664 		} else if (num_args == 1) {
2665 			zend_error(error_type, "Method %s::%s() must take exactly 1 argument",
2666 				ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
2667 		} else {
2668 			zend_error(error_type, "Method %s::%s() must take exactly %" PRIu32 " arguments",
2669 				ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name), num_args);
2670 		}
2671 		return;
2672 	}
2673 	for (uint32_t i = 0; i < num_args; i++) {
2674 		if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, i + 1)) {
2675 			zend_error(error_type, "Method %s::%s() cannot take arguments by reference",
2676 				ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
2677 			return;
2678 		}
2679 	}
2680 }
2681 
zend_check_magic_method_arg_type(uint32_t arg_num,const zend_class_entry * ce,const zend_function * fptr,int error_type,int arg_type)2682 static void zend_check_magic_method_arg_type(uint32_t arg_num, const zend_class_entry *ce, const zend_function *fptr, int error_type, int arg_type)
2683 {
2684 		if (
2685 			ZEND_TYPE_IS_SET(fptr->common.arg_info[arg_num].type)
2686 			 && !(ZEND_TYPE_FULL_MASK(fptr->common.arg_info[arg_num].type) & arg_type)
2687 		) {
2688 			zend_error(error_type, "%s::%s(): Parameter #%d ($%s) must be of type %s when declared",
2689 				ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name),
2690 				arg_num + 1, ZSTR_VAL(fptr->common.arg_info[arg_num].name),
2691 				ZSTR_VAL(zend_type_to_string((zend_type) ZEND_TYPE_INIT_MASK(arg_type))));
2692 		}
2693 }
2694 
zend_check_magic_method_return_type(const zend_class_entry * ce,const zend_function * fptr,int error_type,int return_type)2695 static void zend_check_magic_method_return_type(const zend_class_entry *ce, const zend_function *fptr, int error_type, int return_type)
2696 {
2697 	if (!(fptr->common.fn_flags & ZEND_ACC_HAS_RETURN_TYPE)) {
2698 		/* For backwards compatibility reasons, do not enforce the return type if it is not set. */
2699 		return;
2700 	}
2701 
2702 	if (ZEND_TYPE_PURE_MASK(fptr->common.arg_info[-1].type) & MAY_BE_NEVER) {
2703 		/* It is always legal to specify the never type. */
2704 		return;
2705 	}
2706 
2707 	bool is_complex_type = ZEND_TYPE_IS_COMPLEX(fptr->common.arg_info[-1].type);
2708 	uint32_t extra_types = ZEND_TYPE_PURE_MASK(fptr->common.arg_info[-1].type) & ~return_type;
2709 	if (extra_types & MAY_BE_STATIC) {
2710 		extra_types &= ~MAY_BE_STATIC;
2711 		is_complex_type = true;
2712 	}
2713 
2714 	if (extra_types || (is_complex_type && return_type != MAY_BE_OBJECT)) {
2715 		zend_error(error_type, "%s::%s(): Return type must be %s when declared",
2716 			ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name),
2717 			ZSTR_VAL(zend_type_to_string((zend_type) ZEND_TYPE_INIT_MASK(return_type))));
2718 	}
2719 }
2720 
zend_check_magic_method_non_static(const zend_class_entry * ce,const zend_function * fptr,int error_type)2721 static void zend_check_magic_method_non_static(
2722 		const zend_class_entry *ce, const zend_function *fptr, int error_type)
2723 {
2724 	if (fptr->common.fn_flags & ZEND_ACC_STATIC) {
2725 		zend_error(error_type, "Method %s::%s() cannot be static",
2726 			ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
2727 	}
2728 }
2729 
zend_check_magic_method_static(const zend_class_entry * ce,const zend_function * fptr,int error_type)2730 static void zend_check_magic_method_static(
2731 		const zend_class_entry *ce, const zend_function *fptr, int error_type)
2732 {
2733 	if (!(fptr->common.fn_flags & ZEND_ACC_STATIC)) {
2734 		zend_error(error_type, "Method %s::%s() must be static",
2735 			ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
2736 	}
2737 }
2738 
zend_check_magic_method_public(const zend_class_entry * ce,const zend_function * fptr,int error_type)2739 static void zend_check_magic_method_public(
2740 		const zend_class_entry *ce, const zend_function *fptr, int error_type)
2741 {
2742 	// TODO: Remove this warning after adding proper visibility handling.
2743 	if (!(fptr->common.fn_flags & ZEND_ACC_PUBLIC)) {
2744 		zend_error(E_WARNING, "The magic method %s::%s() must have public visibility",
2745 			ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
2746 	}
2747 }
2748 
zend_check_magic_method_no_return_type(const zend_class_entry * ce,const zend_function * fptr,int error_type)2749 static void zend_check_magic_method_no_return_type(
2750 		const zend_class_entry *ce, const zend_function *fptr, int error_type)
2751 {
2752 	if (fptr->common.fn_flags & ZEND_ACC_HAS_RETURN_TYPE) {
2753 		zend_error_noreturn(error_type, "Method %s::%s() cannot declare a return type",
2754 			ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
2755 	}
2756 }
2757 
zend_check_magic_method_implementation(const zend_class_entry * ce,const zend_function * fptr,zend_string * lcname,int error_type)2758 ZEND_API void zend_check_magic_method_implementation(const zend_class_entry *ce, const zend_function *fptr, zend_string *lcname, int error_type) /* {{{ */
2759 {
2760 	if (ZSTR_VAL(lcname)[0] != '_'
2761 	 || ZSTR_VAL(lcname)[1] != '_') {
2762 		return;
2763 	}
2764 
2765 	if (zend_string_equals_literal(lcname, ZEND_CONSTRUCTOR_FUNC_NAME)) {
2766 		zend_check_magic_method_non_static(ce, fptr, error_type);
2767 		zend_check_magic_method_no_return_type(ce, fptr, error_type);
2768 	} else if (zend_string_equals_literal(lcname, ZEND_DESTRUCTOR_FUNC_NAME)) {
2769 		zend_check_magic_method_args(0, ce, fptr, error_type);
2770 		zend_check_magic_method_non_static(ce, fptr, error_type);
2771 		zend_check_magic_method_no_return_type(ce, fptr, error_type);
2772 	} else if (zend_string_equals_literal(lcname, ZEND_CLONE_FUNC_NAME)) {
2773 		zend_check_magic_method_args(0, ce, fptr, error_type);
2774 		zend_check_magic_method_non_static(ce, fptr, error_type);
2775 		zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_VOID);
2776 	} else if (zend_string_equals_literal(lcname, ZEND_GET_FUNC_NAME)) {
2777 		zend_check_magic_method_args(1, ce, fptr, error_type);
2778 		zend_check_magic_method_non_static(ce, fptr, error_type);
2779 		zend_check_magic_method_public(ce, fptr, error_type);
2780 		zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
2781 	} else if (zend_string_equals_literal(lcname, ZEND_SET_FUNC_NAME)) {
2782 		zend_check_magic_method_args(2, ce, fptr, error_type);
2783 		zend_check_magic_method_non_static(ce, fptr, error_type);
2784 		zend_check_magic_method_public(ce, fptr, error_type);
2785 		zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
2786 		zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_VOID);
2787 	} else if (zend_string_equals_literal(lcname, ZEND_UNSET_FUNC_NAME)) {
2788 		zend_check_magic_method_args(1, ce, fptr, error_type);
2789 		zend_check_magic_method_non_static(ce, fptr, error_type);
2790 		zend_check_magic_method_public(ce, fptr, error_type);
2791 		zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
2792 		zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_VOID);
2793 	} else if (zend_string_equals_literal(lcname, ZEND_ISSET_FUNC_NAME)) {
2794 		zend_check_magic_method_args(1, ce, fptr, error_type);
2795 		zend_check_magic_method_non_static(ce, fptr, error_type);
2796 		zend_check_magic_method_public(ce, fptr, error_type);
2797 		zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
2798 		zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_BOOL);
2799 	} else if (zend_string_equals_literal(lcname, ZEND_CALL_FUNC_NAME)) {
2800 		zend_check_magic_method_args(2, ce, fptr, error_type);
2801 		zend_check_magic_method_non_static(ce, fptr, error_type);
2802 		zend_check_magic_method_public(ce, fptr, error_type);
2803 		zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
2804 		zend_check_magic_method_arg_type(1, ce, fptr, error_type, MAY_BE_ARRAY);
2805 	} else if (zend_string_equals_literal(lcname, ZEND_CALLSTATIC_FUNC_NAME)) {
2806 		zend_check_magic_method_args(2, ce, fptr, error_type);
2807 		zend_check_magic_method_static(ce, fptr, error_type);
2808 		zend_check_magic_method_public(ce, fptr, error_type);
2809 		zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
2810 		zend_check_magic_method_arg_type(1, ce, fptr, error_type, MAY_BE_ARRAY);
2811 	} else if (zend_string_equals_literal(lcname, ZEND_TOSTRING_FUNC_NAME)) {
2812 		zend_check_magic_method_args(0, ce, fptr, error_type);
2813 		zend_check_magic_method_non_static(ce, fptr, error_type);
2814 		zend_check_magic_method_public(ce, fptr, error_type);
2815 		zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_STRING);
2816 	} else if (zend_string_equals_literal(lcname, ZEND_DEBUGINFO_FUNC_NAME)) {
2817 		zend_check_magic_method_args(0, ce, fptr, error_type);
2818 		zend_check_magic_method_non_static(ce, fptr, error_type);
2819 		zend_check_magic_method_public(ce, fptr, error_type);
2820 		zend_check_magic_method_return_type(ce, fptr, error_type, (MAY_BE_ARRAY | MAY_BE_NULL));
2821 	} else if (zend_string_equals_literal(lcname, "__serialize")) {
2822 		zend_check_magic_method_args(0, ce, fptr, error_type);
2823 		zend_check_magic_method_non_static(ce, fptr, error_type);
2824 		zend_check_magic_method_public(ce, fptr, error_type);
2825 		zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_ARRAY);
2826 	} else if (zend_string_equals_literal(lcname, "__unserialize")) {
2827 		zend_check_magic_method_args(1, ce, fptr, error_type);
2828 		zend_check_magic_method_non_static(ce, fptr, error_type);
2829 		zend_check_magic_method_public(ce, fptr, error_type);
2830 		zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_ARRAY);
2831 		zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_VOID);
2832 	} else if (zend_string_equals_literal(lcname, "__set_state")) {
2833 		zend_check_magic_method_args(1, ce, fptr, error_type);
2834 		zend_check_magic_method_static(ce, fptr, error_type);
2835 		zend_check_magic_method_public(ce, fptr, error_type);
2836 		zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_ARRAY);
2837 		zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_OBJECT);
2838 	} else if (zend_string_equals(lcname, ZSTR_KNOWN(ZEND_STR_MAGIC_INVOKE))) {
2839 		zend_check_magic_method_non_static(ce, fptr, error_type);
2840 		zend_check_magic_method_public(ce, fptr, error_type);
2841 	} else if (zend_string_equals(lcname, ZSTR_KNOWN(ZEND_STR_SLEEP))) {
2842 		zend_check_magic_method_args(0, ce, fptr, error_type);
2843 		zend_check_magic_method_non_static(ce, fptr, error_type);
2844 		zend_check_magic_method_public(ce, fptr, error_type);
2845 		zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_ARRAY);
2846 	} else if (zend_string_equals(lcname, ZSTR_KNOWN(ZEND_STR_WAKEUP))) {
2847 		zend_check_magic_method_args(0, ce, fptr, error_type);
2848 		zend_check_magic_method_non_static(ce, fptr, error_type);
2849 		zend_check_magic_method_public(ce, fptr, error_type);
2850 		zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_VOID);
2851 	}
2852 }
2853 /* }}} */
2854 
zend_add_magic_method(zend_class_entry * ce,zend_function * fptr,zend_string * lcname)2855 ZEND_API void zend_add_magic_method(zend_class_entry *ce, zend_function *fptr, zend_string *lcname)
2856 {
2857 	if (ZSTR_VAL(lcname)[0] != '_' || ZSTR_VAL(lcname)[1] != '_') {
2858 		/* pass */
2859 	} else if (zend_string_equals_literal(lcname, ZEND_CLONE_FUNC_NAME)) {
2860 		ce->clone = fptr;
2861 	} else if (zend_string_equals_literal(lcname, ZEND_CONSTRUCTOR_FUNC_NAME)) {
2862 		ce->constructor = fptr;
2863 		ce->constructor->common.fn_flags |= ZEND_ACC_CTOR;
2864 	} else if (zend_string_equals_literal(lcname, ZEND_DESTRUCTOR_FUNC_NAME)) {
2865 		ce->destructor = fptr;
2866 	} else if (zend_string_equals_literal(lcname, ZEND_GET_FUNC_NAME)) {
2867 		ce->__get = fptr;
2868 		ce->ce_flags |= ZEND_ACC_USE_GUARDS;
2869 	} else if (zend_string_equals_literal(lcname, ZEND_SET_FUNC_NAME)) {
2870 		ce->__set = fptr;
2871 		ce->ce_flags |= ZEND_ACC_USE_GUARDS;
2872 	} else if (zend_string_equals_literal(lcname, ZEND_CALL_FUNC_NAME)) {
2873 		ce->__call = fptr;
2874 	} else if (zend_string_equals_literal(lcname, ZEND_UNSET_FUNC_NAME)) {
2875 		ce->__unset = fptr;
2876 		ce->ce_flags |= ZEND_ACC_USE_GUARDS;
2877 	} else if (zend_string_equals_literal(lcname, ZEND_ISSET_FUNC_NAME)) {
2878 		ce->__isset = fptr;
2879 		ce->ce_flags |= ZEND_ACC_USE_GUARDS;
2880 	} else if (zend_string_equals_literal(lcname, ZEND_CALLSTATIC_FUNC_NAME)) {
2881 		ce->__callstatic = fptr;
2882 	} else if (zend_string_equals_literal(lcname, ZEND_TOSTRING_FUNC_NAME)) {
2883 		ce->__tostring = fptr;
2884 	} else if (zend_string_equals_literal(lcname, ZEND_DEBUGINFO_FUNC_NAME)) {
2885 		ce->__debugInfo = fptr;
2886 		ce->ce_flags |= ZEND_ACC_USE_GUARDS;
2887 	} else if (zend_string_equals_literal(lcname, "__serialize")) {
2888 		ce->__serialize = fptr;
2889 	} else if (zend_string_equals_literal(lcname, "__unserialize")) {
2890 		ce->__unserialize = fptr;
2891 	}
2892 }
2893 
2894 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arg_info_toString, 0, 0, IS_STRING, 0)
ZEND_END_ARG_INFO()2895 ZEND_END_ARG_INFO()
2896 
2897 static zend_always_inline void zend_normalize_internal_type(zend_type *type) {
2898 	ZEND_ASSERT(!ZEND_TYPE_HAS_LITERAL_NAME(*type));
2899 	if (ZEND_TYPE_PURE_MASK(*type) != MAY_BE_ANY) {
2900 		ZEND_ASSERT(!ZEND_TYPE_CONTAINS_CODE(*type, IS_RESOURCE) && "resource is not allowed in a zend_type");
2901 	}
2902 	zend_type *current;
2903 	ZEND_TYPE_FOREACH(*type, current) {
2904 		if (ZEND_TYPE_HAS_NAME(*current)) {
2905 			zend_string *name = zend_new_interned_string(ZEND_TYPE_NAME(*current));
2906 			zend_alloc_ce_cache(name);
2907 			ZEND_TYPE_SET_PTR(*current, name);
2908 		} else if (ZEND_TYPE_HAS_LIST(*current)) {
2909 			zend_type *inner;
2910 			ZEND_TYPE_FOREACH(*current, inner) {
2911 				ZEND_ASSERT(!ZEND_TYPE_HAS_LITERAL_NAME(*inner) && !ZEND_TYPE_HAS_LIST(*inner));
2912 				if (ZEND_TYPE_HAS_NAME(*inner)) {
2913 					zend_string *name = zend_new_interned_string(ZEND_TYPE_NAME(*inner));
2914 					zend_alloc_ce_cache(name);
2915 					ZEND_TYPE_SET_PTR(*inner, name);
2916 				}
2917 			} ZEND_TYPE_FOREACH_END();
2918 		}
2919 	} ZEND_TYPE_FOREACH_END();
2920 }
2921 
2922 /* registers all functions in *library_functions in the function hash */
zend_register_functions(zend_class_entry * scope,const zend_function_entry * functions,HashTable * function_table,int type)2923 ZEND_API zend_result zend_register_functions(zend_class_entry *scope, const zend_function_entry *functions, HashTable *function_table, int type) /* {{{ */
2924 {
2925 	const zend_function_entry *ptr = functions;
2926 	zend_function function;
2927 	zend_internal_function *reg_function, *internal_function = (zend_internal_function *)&function;
2928 	int count=0, unload=0;
2929 	HashTable *target_function_table = function_table;
2930 	int error_type;
2931 	zend_string *lowercase_name;
2932 	size_t fname_len;
2933 
2934 	if (type==MODULE_PERSISTENT) {
2935 		error_type = E_CORE_WARNING;
2936 	} else {
2937 		error_type = E_WARNING;
2938 	}
2939 
2940 	if (!target_function_table) {
2941 		target_function_table = CG(function_table);
2942 	}
2943 	internal_function->type = ZEND_INTERNAL_FUNCTION;
2944 	internal_function->module = EG(current_module);
2945 	internal_function->T = 0;
2946 	memset(internal_function->reserved, 0, ZEND_MAX_RESERVED_RESOURCES * sizeof(void*));
2947 
2948 	while (ptr->fname) {
2949 		fname_len = strlen(ptr->fname);
2950 		internal_function->handler = ptr->handler;
2951 		internal_function->doc_comment = ptr->doc_comment ? zend_string_init_interned(ptr->doc_comment, strlen(ptr->doc_comment), 1) : NULL;
2952 		internal_function->function_name = zend_string_init_interned(ptr->fname, fname_len, 1);
2953 		internal_function->scope = scope;
2954 		internal_function->prototype = NULL;
2955 		internal_function->prop_info = NULL;
2956 		internal_function->attributes = NULL;
2957 		internal_function->frameless_function_infos = ptr->frameless_function_infos;
2958 		if (EG(active)) { // at run-time: this ought to only happen if registered with dl() or somehow temporarily at runtime
2959 			ZEND_MAP_PTR_INIT(internal_function->run_time_cache, zend_arena_calloc(&CG(arena), 1, zend_internal_run_time_cache_reserved_size()));
2960 		} else {
2961 #ifdef ZTS
2962 			ZEND_MAP_PTR_NEW_STATIC(internal_function->run_time_cache);
2963 #else
2964 			ZEND_MAP_PTR_INIT(internal_function->run_time_cache, NULL);
2965 #endif
2966 		}
2967 		if (ptr->flags) {
2968 			if (!(ptr->flags & ZEND_ACC_PPP_MASK)) {
2969 				if (ptr->flags != ZEND_ACC_DEPRECATED && scope) {
2970 					zend_error(error_type, "Invalid access level for %s::%s() - access must be exactly one of public, protected or private", ZSTR_VAL(scope->name), ptr->fname);
2971 				}
2972 				internal_function->fn_flags = ZEND_ACC_PUBLIC | ptr->flags;
2973 			} else {
2974 				internal_function->fn_flags = ptr->flags;
2975 			}
2976 		} else {
2977 			internal_function->fn_flags = ZEND_ACC_PUBLIC;
2978 		}
2979 
2980 		if (ptr->arg_info) {
2981 			zend_internal_function_info *info = (zend_internal_function_info*)ptr->arg_info;
2982 			internal_function->arg_info = (zend_internal_arg_info*)ptr->arg_info+1;
2983 			internal_function->num_args = ptr->num_args;
2984 			/* Currently you cannot denote that the function can accept less arguments than num_args */
2985 			if (info->required_num_args == (uintptr_t)-1) {
2986 				internal_function->required_num_args = ptr->num_args;
2987 			} else {
2988 				internal_function->required_num_args = info->required_num_args;
2989 			}
2990 			if (ZEND_ARG_SEND_MODE(info)) {
2991 				internal_function->fn_flags |= ZEND_ACC_RETURN_REFERENCE;
2992 			}
2993 			if (ZEND_ARG_IS_VARIADIC(&ptr->arg_info[ptr->num_args])) {
2994 				internal_function->fn_flags |= ZEND_ACC_VARIADIC;
2995 				/* Don't count the variadic argument */
2996 				internal_function->num_args--;
2997 			}
2998 			if (ZEND_TYPE_IS_SET(info->type)) {
2999 				if (ZEND_TYPE_HAS_NAME(info->type)) {
3000 					const char *type_name = ZEND_TYPE_LITERAL_NAME(info->type);
3001 					if (!scope && (!strcasecmp(type_name, "self") || !strcasecmp(type_name, "parent"))) {
3002 						zend_error_noreturn(E_CORE_ERROR, "Cannot declare a return type of %s outside of a class scope", type_name);
3003 					}
3004 				}
3005 
3006 				internal_function->fn_flags |= ZEND_ACC_HAS_RETURN_TYPE;
3007 			}
3008 		} else {
3009 			zend_error(E_CORE_WARNING, "Missing arginfo for %s%s%s()",
3010 				 scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname);
3011 
3012 			internal_function->arg_info = NULL;
3013 			internal_function->num_args = 0;
3014 			internal_function->required_num_args = 0;
3015 		}
3016 
3017 		/* If not specified, add __toString() return type for compatibility with Stringable
3018 		 * interface. */
3019 		if (scope && zend_string_equals_literal_ci(internal_function->function_name, "__tostring") &&
3020 				!(internal_function->fn_flags & ZEND_ACC_HAS_RETURN_TYPE)) {
3021 			zend_error(E_CORE_WARNING, "%s::__toString() implemented without string return type",
3022 				ZSTR_VAL(scope->name));
3023 			internal_function->arg_info = (zend_internal_arg_info *) arg_info_toString + 1;
3024 			internal_function->fn_flags |= ZEND_ACC_HAS_RETURN_TYPE;
3025 			internal_function->num_args = internal_function->required_num_args = 0;
3026 		}
3027 
3028 
3029 		zend_set_function_arg_flags((zend_function*)internal_function);
3030 		if (ptr->flags & ZEND_ACC_ABSTRACT) {
3031 			if (scope) {
3032 				/* This is a class that must be abstract itself. Here we set the check info. */
3033 				scope->ce_flags |= ZEND_ACC_IMPLICIT_ABSTRACT_CLASS;
3034 				if (!(scope->ce_flags & ZEND_ACC_INTERFACE)) {
3035 					/* Since the class is not an interface it needs to be declared as a abstract class. */
3036 					/* Since here we are handling internal functions only we can add the keyword flag. */
3037 					/* This time we set the flag for the keyword 'abstract'. */
3038 					scope->ce_flags |= ZEND_ACC_EXPLICIT_ABSTRACT_CLASS;
3039 				}
3040 			}
3041 			if ((ptr->flags & ZEND_ACC_STATIC) && (!scope || !(scope->ce_flags & ZEND_ACC_INTERFACE))) {
3042 				zend_error(error_type, "Static function %s%s%s() cannot be abstract", scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname);
3043 			}
3044 		} else {
3045 			if (scope && (scope->ce_flags & ZEND_ACC_INTERFACE)) {
3046 				zend_error(error_type, "Interface %s cannot contain non abstract method %s()", ZSTR_VAL(scope->name), ptr->fname);
3047 				return FAILURE;
3048 			}
3049 			if (!internal_function->handler) {
3050 				zend_error(error_type, "Method %s%s%s() cannot be a NULL function", scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname);
3051 				zend_unregister_functions(functions, count, target_function_table);
3052 				return FAILURE;
3053 			}
3054 		}
3055 		lowercase_name = zend_string_tolower_ex(internal_function->function_name, type == MODULE_PERSISTENT);
3056 		lowercase_name = zend_new_interned_string(lowercase_name);
3057 		reg_function = malloc(sizeof(zend_internal_function));
3058 		memcpy(reg_function, &function, sizeof(zend_internal_function));
3059 		if (zend_hash_add_ptr(target_function_table, lowercase_name, reg_function) == NULL) {
3060 			unload=1;
3061 			free(reg_function);
3062 			zend_string_release(lowercase_name);
3063 			break;
3064 		}
3065 		if (reg_function->frameless_function_infos) {
3066 			const zend_frameless_function_info *flf_info = reg_function->frameless_function_infos;
3067 			while (flf_info->handler) {
3068 				if (zend_flf_count == zend_flf_capacity) {
3069 					if (!zend_flf_capacity) {
3070 						zend_flf_capacity = 8;
3071 					} else {
3072 						zend_flf_capacity *= 2;
3073 					}
3074 					/* +1 for NULL terminator */
3075 					zend_flf_handlers = realloc(zend_flf_handlers, (zend_flf_capacity + 1) * sizeof(void *));
3076 					zend_flf_functions = realloc(zend_flf_functions, (zend_flf_capacity + 1) * sizeof(zend_function *));
3077 				}
3078 				zend_flf_handlers[zend_flf_count] = flf_info->handler;
3079 				zend_flf_functions[zend_flf_count] = (zend_function *)reg_function;
3080 				zend_flf_count++;
3081 				flf_info++;
3082 			}
3083 			zend_flf_handlers[zend_flf_count] = NULL;
3084 			zend_flf_functions[zend_flf_count] = NULL;
3085 		}
3086 
3087 		/* Get parameter count including variadic parameter. */
3088 		uint32_t num_args = reg_function->num_args;
3089 		if (reg_function->fn_flags & ZEND_ACC_VARIADIC) {
3090 			num_args++;
3091 		}
3092 
3093 		/* If types of arguments have to be checked */
3094 		if (reg_function->arg_info && num_args) {
3095 			uint32_t i;
3096 			for (i = 0; i < num_args; i++) {
3097 				zend_internal_arg_info *arg_info = &reg_function->arg_info[i];
3098 				ZEND_ASSERT(arg_info->name && "Parameter must have a name");
3099 				if (ZEND_TYPE_IS_SET(arg_info->type)) {
3100 				    reg_function->fn_flags |= ZEND_ACC_HAS_TYPE_HINTS;
3101 				}
3102 #if ZEND_DEBUG
3103 				for (uint32_t j = 0; j < i; j++) {
3104 					if (!strcmp(arg_info->name, reg_function->arg_info[j].name)) {
3105 						zend_error_noreturn(E_CORE_ERROR,
3106 							"Duplicate parameter name $%s for function %s%s%s()", arg_info->name,
3107 							scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname);
3108 					}
3109 				}
3110 #endif
3111 			}
3112 		}
3113 
3114 		/* Rebuild arginfos if parameter/property types and/or a return type are used */
3115 		if (reg_function->arg_info &&
3116 		    (reg_function->fn_flags & (ZEND_ACC_HAS_RETURN_TYPE|ZEND_ACC_HAS_TYPE_HINTS))) {
3117 			/* convert "const char*" class type names into "zend_string*" */
3118 			uint32_t i;
3119 			zend_internal_arg_info *arg_info = reg_function->arg_info - 1;
3120 			zend_internal_arg_info *new_arg_info;
3121 
3122 			/* Treat return type as an extra argument */
3123 			num_args++;
3124 			new_arg_info = malloc(sizeof(zend_internal_arg_info) * num_args);
3125 			memcpy(new_arg_info, arg_info, sizeof(zend_internal_arg_info) * num_args);
3126 			reg_function->arg_info = new_arg_info + 1;
3127 			for (i = 0; i < num_args; i++) {
3128 				if (ZEND_TYPE_HAS_LITERAL_NAME(new_arg_info[i].type)) {
3129 					// gen_stubs.php does not support codegen for DNF types in arg infos.
3130 					// As a temporary workaround, we split the type name on `|` characters,
3131 					// converting it to an union type if necessary.
3132 					const char *class_name = ZEND_TYPE_LITERAL_NAME(new_arg_info[i].type);
3133 					new_arg_info[i].type.type_mask &= ~_ZEND_TYPE_LITERAL_NAME_BIT;
3134 
3135 					size_t num_types = 1;
3136 					const char *p = class_name;
3137 					while ((p = strchr(p, '|'))) {
3138 						num_types++;
3139 						p++;
3140 					}
3141 
3142 					if (num_types == 1) {
3143 						/* Simple class type */
3144 						zend_string *str = zend_string_init_interned(class_name, strlen(class_name), 1);
3145 						zend_alloc_ce_cache(str);
3146 						ZEND_TYPE_SET_PTR(new_arg_info[i].type, str);
3147 						new_arg_info[i].type.type_mask |= _ZEND_TYPE_NAME_BIT;
3148 					} else {
3149 						/* Union type */
3150 						zend_type_list *list = malloc(ZEND_TYPE_LIST_SIZE(num_types));
3151 						list->num_types = num_types;
3152 						ZEND_TYPE_SET_LIST(new_arg_info[i].type, list);
3153 						ZEND_TYPE_FULL_MASK(new_arg_info[i].type) |= _ZEND_TYPE_UNION_BIT;
3154 
3155 						const char *start = class_name;
3156 						uint32_t j = 0;
3157 						while (true) {
3158 							const char *end = strchr(start, '|');
3159 							zend_string *str = zend_string_init_interned(start, end ? end - start : strlen(start), 1);
3160 							zend_alloc_ce_cache(str);
3161 							list->types[j] = (zend_type) ZEND_TYPE_INIT_CLASS(str, 0, 0);
3162 							if (!end) {
3163 								break;
3164 							}
3165 							start = end + 1;
3166 							j++;
3167 						}
3168 					}
3169 				}
3170 				if (ZEND_TYPE_IS_ITERABLE_FALLBACK(new_arg_info[i].type)) {
3171 					/* Warning generated an extension load warning which is emitted for every test
3172 					zend_error(E_CORE_WARNING, "iterable type is now a compile time alias for array|Traversable,"
3173 						" regenerate the argument info via the php-src gen_stub build script");
3174 					*/
3175 					zend_type legacy_iterable = ZEND_TYPE_INIT_CLASS_MASK(
3176 						ZSTR_KNOWN(ZEND_STR_TRAVERSABLE),
3177 						(new_arg_info[i].type.type_mask | MAY_BE_ARRAY)
3178 					);
3179 					new_arg_info[i].type = legacy_iterable;
3180 				}
3181 
3182 				zend_normalize_internal_type(&new_arg_info[i].type);
3183 			}
3184 		}
3185 
3186 		if (scope) {
3187 			zend_check_magic_method_implementation(
3188 				scope, (zend_function *)reg_function, lowercase_name, E_CORE_ERROR);
3189 			zend_add_magic_method(scope, (zend_function *)reg_function, lowercase_name);
3190 		}
3191 		ptr++;
3192 		count++;
3193 		zend_string_release(lowercase_name);
3194 	}
3195 	if (unload) { /* before unloading, display all remaining bad function in the module */
3196 		while (ptr->fname) {
3197 			fname_len = strlen(ptr->fname);
3198 			lowercase_name = zend_string_alloc(fname_len, 0);
3199 			zend_str_tolower_copy(ZSTR_VAL(lowercase_name), ptr->fname, fname_len);
3200 			if (zend_hash_exists(target_function_table, lowercase_name)) {
3201 				zend_error(error_type, "Function registration failed - duplicate name - %s%s%s", scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname);
3202 			}
3203 			zend_string_efree(lowercase_name);
3204 			ptr++;
3205 		}
3206 		zend_unregister_functions(functions, count, target_function_table);
3207 		return FAILURE;
3208 	}
3209 	return SUCCESS;
3210 }
3211 /* }}} */
3212 
3213 /* count=-1 means erase all functions, otherwise,
3214  * erase the first count functions
3215  */
zend_unregister_functions(const zend_function_entry * functions,int count,HashTable * function_table)3216 ZEND_API void zend_unregister_functions(const zend_function_entry *functions, int count, HashTable *function_table) /* {{{ */
3217 {
3218 	const zend_function_entry *ptr = functions;
3219 	int i=0;
3220 	HashTable *target_function_table = function_table;
3221 	zend_string *lowercase_name;
3222 	size_t fname_len;
3223 
3224 	if (!target_function_table) {
3225 		target_function_table = CG(function_table);
3226 	}
3227 	while (ptr->fname) {
3228 		if (count!=-1 && i>=count) {
3229 			break;
3230 		}
3231 		fname_len = strlen(ptr->fname);
3232 		lowercase_name = zend_string_alloc(fname_len, 0);
3233 		zend_str_tolower_copy(ZSTR_VAL(lowercase_name), ptr->fname, fname_len);
3234 		zend_hash_del(target_function_table, lowercase_name);
3235 		zend_string_efree(lowercase_name);
3236 		ptr++;
3237 		i++;
3238 	}
3239 }
3240 /* }}} */
3241 
zend_startup_module(zend_module_entry * module)3242 ZEND_API zend_result zend_startup_module(zend_module_entry *module) /* {{{ */
3243 {
3244 	if ((module = zend_register_internal_module(module)) != NULL && zend_startup_module_ex(module) == SUCCESS) {
3245 		return SUCCESS;
3246 	}
3247 	return FAILURE;
3248 }
3249 /* }}} */
3250 
zend_get_module_started(const char * module_name)3251 ZEND_API zend_result zend_get_module_started(const char *module_name) /* {{{ */
3252 {
3253 	zend_module_entry *module;
3254 
3255 	module = zend_hash_str_find_ptr(&module_registry, module_name, strlen(module_name));
3256 	return (module && module->module_started) ? SUCCESS : FAILURE;
3257 }
3258 /* }}} */
3259 
clean_module_class(zval * el,void * arg)3260 static int clean_module_class(zval *el, void *arg) /* {{{ */
3261 {
3262 	zend_class_entry *ce = (zend_class_entry *)Z_PTR_P(el);
3263 	int module_number = *(int *)arg;
3264 	if (ce->type == ZEND_INTERNAL_CLASS && ce->info.internal.module->module_number == module_number) {
3265 		return ZEND_HASH_APPLY_REMOVE;
3266 	} else {
3267 		return ZEND_HASH_APPLY_KEEP;
3268 	}
3269 }
3270 /* }}} */
3271 
clean_module_classes(int module_number)3272 static void clean_module_classes(int module_number) /* {{{ */
3273 {
3274 	zend_hash_apply_with_argument(EG(class_table), clean_module_class, (void *) &module_number);
3275 }
3276 /* }}} */
3277 
clean_module_function(zval * el,void * arg)3278 static int clean_module_function(zval *el, void *arg) /* {{{ */
3279 {
3280 	zend_function *fe = (zend_function *) Z_PTR_P(el);
3281 	zend_module_entry *module = (zend_module_entry *) arg;
3282 	if (fe->common.type == ZEND_INTERNAL_FUNCTION && fe->internal_function.module == module) {
3283 		return ZEND_HASH_APPLY_REMOVE;
3284 	} else {
3285 		return ZEND_HASH_APPLY_KEEP;
3286 	}
3287 }
3288 /* }}} */
3289 
clean_module_functions(zend_module_entry * module)3290 static void clean_module_functions(zend_module_entry *module) /* {{{ */
3291 {
3292 	zend_hash_apply_with_argument(CG(function_table), clean_module_function, module);
3293 }
3294 /* }}} */
3295 
module_destructor(zend_module_entry * module)3296 void module_destructor(zend_module_entry *module) /* {{{ */
3297 {
3298 #if ZEND_RC_DEBUG
3299 	bool orig_rc_debug = zend_rc_debug;
3300 #endif
3301 
3302 	if (module->type == MODULE_TEMPORARY) {
3303 #if ZEND_RC_DEBUG
3304 		/* FIXME: Loading extensions during the request breaks some invariants.
3305 		 * In particular, it will create persistent interned strings, which is
3306 		 * not allowed at this stage. */
3307 		zend_rc_debug = false;
3308 #endif
3309 		zend_clean_module_rsrc_dtors(module->module_number);
3310 		clean_module_constants(module->module_number);
3311 		clean_module_classes(module->module_number);
3312 	}
3313 
3314 	if (module->module_started && module->module_shutdown_func) {
3315 #if 0
3316 		zend_printf("%s: Module shutdown\n", module->name);
3317 #endif
3318 		module->module_shutdown_func(module->type, module->module_number);
3319 	}
3320 
3321 	if (module->module_started
3322 	 && !module->module_shutdown_func
3323 	 && module->type == MODULE_TEMPORARY) {
3324 		zend_unregister_ini_entries_ex(module->module_number, module->type);
3325 	}
3326 
3327 	/* Deinitialize module globals */
3328 	if (module->globals_size) {
3329 #ifdef ZTS
3330 		if (*module->globals_id_ptr) {
3331 			ts_free_id(*module->globals_id_ptr);
3332 		}
3333 #else
3334 		if (module->globals_dtor) {
3335 			module->globals_dtor(module->globals_ptr);
3336 		}
3337 #endif
3338 	}
3339 
3340 	module->module_started=0;
3341 	if (module->type == MODULE_TEMPORARY && module->functions) {
3342 		zend_unregister_functions(module->functions, -1, NULL);
3343 		/* Clean functions registered separately from module->functions */
3344 		clean_module_functions(module);
3345 	}
3346 
3347 #if ZEND_RC_DEBUG
3348 	zend_rc_debug = orig_rc_debug;
3349 #endif
3350 }
3351 /* }}} */
3352 
module_registry_unload(const zend_module_entry * module)3353 void module_registry_unload(const zend_module_entry *module)
3354 {
3355 #ifdef HAVE_LIBDL
3356 	if (!getenv("ZEND_DONT_UNLOAD_MODULES")) {
3357 		DL_UNLOAD(module->handle);
3358 	}
3359 #else
3360 	ZEND_IGNORE_VALUE(module);
3361 #endif
3362 }
3363 
zend_activate_modules(void)3364 ZEND_API void zend_activate_modules(void) /* {{{ */
3365 {
3366 	zend_module_entry **p = module_request_startup_handlers;
3367 
3368 	while (*p) {
3369 		zend_module_entry *module = *p;
3370 
3371 		if (module->request_startup_func(module->type, module->module_number)==FAILURE) {
3372 			zend_error(E_WARNING, "request_startup() for %s module failed", module->name);
3373 			exit(1);
3374 		}
3375 		p++;
3376 	}
3377 }
3378 /* }}} */
3379 
zend_deactivate_modules(void)3380 ZEND_API void zend_deactivate_modules(void) /* {{{ */
3381 {
3382 	EG(current_execute_data) = NULL; /* we're no longer executing anything */
3383 
3384 	if (EG(full_tables_cleanup)) {
3385 		zend_module_entry *module;
3386 
3387 		ZEND_HASH_MAP_REVERSE_FOREACH_PTR(&module_registry, module) {
3388 			if (module->request_shutdown_func) {
3389 				zend_try {
3390 					module->request_shutdown_func(module->type, module->module_number);
3391 				} zend_end_try();
3392 			}
3393 		} ZEND_HASH_FOREACH_END();
3394 	} else {
3395 		zend_module_entry **p = module_request_shutdown_handlers;
3396 
3397 		while (*p) {
3398 			zend_module_entry *module = *p;
3399 			zend_try {
3400 				module->request_shutdown_func(module->type, module->module_number);
3401 			} zend_end_try();
3402 			p++;
3403 		}
3404 	}
3405 }
3406 /* }}} */
3407 
zend_unload_modules(void)3408 void zend_unload_modules(void) /* {{{ */
3409 {
3410 	zend_module_entry **modules = modules_dl_loaded;
3411 	while (*modules) {
3412 		module_registry_unload(*modules);
3413 		modules++;
3414 	}
3415 	free(modules_dl_loaded);
3416 	modules_dl_loaded = NULL;
3417 }
3418 /* }}} */
3419 
zend_post_deactivate_modules(void)3420 ZEND_API void zend_post_deactivate_modules(void) /* {{{ */
3421 {
3422 	if (EG(full_tables_cleanup)) {
3423 		zend_module_entry *module;
3424 		zval *zv;
3425 		zend_string *key;
3426 
3427 		ZEND_HASH_MAP_FOREACH_PTR(&module_registry, module) {
3428 			if (module->post_deactivate_func) {
3429 				module->post_deactivate_func();
3430 			}
3431 		} ZEND_HASH_FOREACH_END();
3432 		ZEND_HASH_MAP_REVERSE_FOREACH_STR_KEY_VAL(&module_registry, key, zv) {
3433 			module = Z_PTR_P(zv);
3434 			if (module->type != MODULE_TEMPORARY) {
3435 				break;
3436 			}
3437 			module_destructor(module);
3438 			if (module->handle) {
3439 				module_registry_unload(module);
3440 			}
3441 			zend_string_release_ex(key, 0);
3442 		} ZEND_HASH_MAP_FOREACH_END_DEL();
3443 	} else {
3444 		zend_module_entry **p = module_post_deactivate_handlers;
3445 
3446 		while (*p) {
3447 			zend_module_entry *module = *p;
3448 
3449 			module->post_deactivate_func();
3450 			p++;
3451 		}
3452 	}
3453 }
3454 /* }}} */
3455 
3456 /* return the next free module number */
zend_next_free_module(void)3457 ZEND_API int zend_next_free_module(void) /* {{{ */
3458 {
3459 	return zend_hash_num_elements(&module_registry);
3460 }
3461 /* }}} */
3462 
do_register_internal_class(zend_class_entry * orig_class_entry,uint32_t ce_flags)3463 static zend_class_entry *do_register_internal_class(zend_class_entry *orig_class_entry, uint32_t ce_flags) /* {{{ */
3464 {
3465 	zend_class_entry *class_entry = malloc(sizeof(zend_class_entry));
3466 	zend_string *lowercase_name;
3467 	*class_entry = *orig_class_entry;
3468 
3469 	class_entry->type = ZEND_INTERNAL_CLASS;
3470 	zend_initialize_class_data(class_entry, 0);
3471 	zend_alloc_ce_cache(class_entry->name);
3472 	class_entry->ce_flags = orig_class_entry->ce_flags | ce_flags | ZEND_ACC_CONSTANTS_UPDATED | ZEND_ACC_LINKED | ZEND_ACC_RESOLVED_PARENT | ZEND_ACC_RESOLVED_INTERFACES;
3473 	class_entry->info.internal.module = EG(current_module);
3474 
3475 	if (class_entry->info.internal.builtin_functions) {
3476 		zend_register_functions(class_entry, class_entry->info.internal.builtin_functions, &class_entry->function_table, EG(current_module)->type);
3477 	}
3478 
3479 	lowercase_name = zend_string_tolower_ex(orig_class_entry->name, EG(current_module)->type == MODULE_PERSISTENT);
3480 	lowercase_name = zend_new_interned_string(lowercase_name);
3481 	zend_hash_update_ptr(CG(class_table), lowercase_name, class_entry);
3482 	zend_string_release_ex(lowercase_name, 1);
3483 
3484 	if (class_entry->__tostring && !zend_string_equals_literal(class_entry->name, "Stringable")
3485 			&& !(class_entry->ce_flags & ZEND_ACC_TRAIT)) {
3486 		ZEND_ASSERT(zend_ce_stringable
3487 			&& "Should be registered before first class using __toString()");
3488 		zend_do_implement_interface(class_entry, zend_ce_stringable);
3489 	}
3490 	return class_entry;
3491 }
3492 /* }}} */
3493 
3494 /* If parent_ce is not NULL then it inherits from parent_ce
3495  * If parent_ce is NULL and parent_name isn't then it looks for the parent and inherits from it
3496  * If both parent_ce and parent_name are NULL it does a regular class registration
3497  * If parent_name is specified but not found NULL is returned
3498  */
zend_register_internal_class_ex(zend_class_entry * class_entry,zend_class_entry * parent_ce)3499 ZEND_API zend_class_entry *zend_register_internal_class_ex(zend_class_entry *class_entry, zend_class_entry *parent_ce) /* {{{ */
3500 {
3501 	return zend_register_internal_class_with_flags(class_entry, parent_ce, 0);
3502 }
3503 /* }}} */
3504 
zend_register_internal_class_with_flags(zend_class_entry * class_entry,zend_class_entry * parent_ce,uint32_t ce_flags)3505 ZEND_API zend_class_entry *zend_register_internal_class_with_flags(
3506 	zend_class_entry *class_entry,
3507 	zend_class_entry *parent_ce,
3508 	uint32_t ce_flags
3509 ) {
3510 	zend_class_entry *register_class = do_register_internal_class(class_entry, ce_flags);
3511 
3512 	if (parent_ce) {
3513 		zend_do_inheritance(register_class, parent_ce);
3514 		zend_build_properties_info_table(register_class);
3515 	}
3516 
3517 	return register_class;
3518 }
3519 
zend_class_implements(zend_class_entry * class_entry,int num_interfaces,...)3520 ZEND_API void zend_class_implements(zend_class_entry *class_entry, int num_interfaces, ...) /* {{{ */
3521 {
3522 	zend_class_entry *interface_entry;
3523 	va_list interface_list;
3524 	va_start(interface_list, num_interfaces);
3525 
3526 	while (num_interfaces--) {
3527 		interface_entry = va_arg(interface_list, zend_class_entry *);
3528 		if (interface_entry == zend_ce_stringable
3529 				&& zend_class_implements_interface(class_entry, zend_ce_stringable)) {
3530 			/* Stringable is implemented automatically,
3531 			 * silently ignore an explicit implementation. */
3532 			continue;
3533 		}
3534 
3535 		zend_do_implement_interface(class_entry, interface_entry);
3536 	}
3537 
3538 	va_end(interface_list);
3539 }
3540 /* }}} */
3541 
3542 /* A class that contains at least one abstract method automatically becomes an abstract class.
3543  */
zend_register_internal_class(zend_class_entry * orig_class_entry)3544 ZEND_API zend_class_entry *zend_register_internal_class(zend_class_entry *orig_class_entry) /* {{{ */
3545 {
3546 	return do_register_internal_class(orig_class_entry, 0);
3547 }
3548 /* }}} */
3549 
zend_register_internal_interface(zend_class_entry * orig_class_entry)3550 ZEND_API zend_class_entry *zend_register_internal_interface(zend_class_entry *orig_class_entry) /* {{{ */
3551 {
3552 	return do_register_internal_class(orig_class_entry, ZEND_ACC_INTERFACE);
3553 }
3554 /* }}} */
3555 
zend_register_class_alias_ex(const char * name,size_t name_len,zend_class_entry * ce,bool persistent)3556 ZEND_API zend_result zend_register_class_alias_ex(const char *name, size_t name_len, zend_class_entry *ce, bool persistent) /* {{{ */
3557 {
3558 	zend_string *lcname;
3559 	zval zv, *ret;
3560 
3561 	/* TODO: Move this out of here in 7.4. */
3562 	if (persistent && EG(current_module) && EG(current_module)->type == MODULE_TEMPORARY) {
3563 		persistent = 0;
3564 	}
3565 
3566 	if (name[0] == '\\') {
3567 		lcname = zend_string_alloc(name_len-1, persistent);
3568 		zend_str_tolower_copy(ZSTR_VAL(lcname), name+1, name_len-1);
3569 	} else {
3570 		lcname = zend_string_alloc(name_len, persistent);
3571 		zend_str_tolower_copy(ZSTR_VAL(lcname), name, name_len);
3572 	}
3573 
3574 	zend_assert_valid_class_name(lcname, "a class alias");
3575 
3576 	lcname = zend_new_interned_string(lcname);
3577 
3578 	/* We cannot increase the refcount of an internal class during request time.
3579 	 * Instead of having to deal with differentiating between class types and lifetimes,
3580 	 * we simply don't increase the refcount of a class entry for aliases.
3581 	 */
3582 	ZVAL_ALIAS_PTR(&zv, ce);
3583 
3584 	ret = zend_hash_add(CG(class_table), lcname, &zv);
3585 	zend_string_release_ex(lcname, 0);
3586 	if (ret) {
3587 		// avoid notifying at MINIT time
3588 		if (ce->type == ZEND_USER_CLASS) {
3589 			zend_observer_class_linked_notify(ce, lcname);
3590 		}
3591 		return SUCCESS;
3592 	}
3593 	return FAILURE;
3594 }
3595 /* }}} */
3596 
3597 // TODO num_symbol_tables as unsigned int?
zend_set_hash_symbol(zval * symbol,const char * name,size_t name_length,bool is_ref,int num_symbol_tables,...)3598 ZEND_API zend_result zend_set_hash_symbol(zval *symbol, const char *name, size_t name_length, bool is_ref, int num_symbol_tables, ...) /* {{{ */
3599 {
3600 	HashTable *symbol_table;
3601 	va_list symbol_table_list;
3602 
3603 	if (num_symbol_tables <= 0) return FAILURE;
3604 
3605 	if (is_ref) {
3606 		ZVAL_MAKE_REF(symbol);
3607 	}
3608 
3609 	va_start(symbol_table_list, num_symbol_tables);
3610 	while (num_symbol_tables-- > 0) {
3611 		symbol_table = va_arg(symbol_table_list, HashTable *);
3612 		zend_hash_str_update(symbol_table, name, name_length, symbol);
3613 		Z_TRY_ADDREF_P(symbol);
3614 	}
3615 	va_end(symbol_table_list);
3616 	return SUCCESS;
3617 }
3618 /* }}} */
3619 
3620 /* Disabled functions support */
3621 
zend_disable_function(const char * function_name,size_t function_name_length)3622 static void zend_disable_function(const char *function_name, size_t function_name_length)
3623 {
3624 	if (UNEXPECTED(
3625 		(function_name_length == strlen("exit") && !memcmp(function_name, "exit", strlen("exit")))
3626 		|| (function_name_length == strlen("die") && !memcmp(function_name, "die", strlen("die")))
3627 	)) {
3628 		zend_error(E_WARNING, "Cannot disable function %s()", function_name);
3629 		return;
3630 	}
3631 	zend_hash_str_del(CG(function_table), function_name, function_name_length);
3632 }
3633 
zend_disable_functions(const char * function_list)3634 ZEND_API void zend_disable_functions(const char *function_list) /* {{{ */
3635 {
3636 	if (!function_list || !*function_list) {
3637 		return;
3638 	}
3639 
3640 	const char *s = NULL, *e = function_list;
3641 	while (*e) {
3642 		switch (*e) {
3643 			case ' ':
3644 			case ',':
3645 				if (s) {
3646 					zend_disable_function(s, e - s);
3647 					s = NULL;
3648 				}
3649 				break;
3650 			default:
3651 				if (!s) {
3652 					s = e;
3653 				}
3654 				break;
3655 		}
3656 		e++;
3657 	}
3658 	if (s) {
3659 		zend_disable_function(s, e - s);
3660 	}
3661 
3662 	/* Rehash the function table after deleting functions. This ensures that all internal
3663 	 * functions are contiguous, which means we don't need to perform full table cleanup
3664 	 * on shutdown. */
3665 	zend_hash_rehash(CG(function_table));
3666 }
3667 /* }}} */
3668 
3669 #ifdef ZEND_WIN32
3670 #pragma optimize("", off)
3671 #endif
display_disabled_class(zend_class_entry * class_type)3672 static ZEND_COLD zend_object *display_disabled_class(zend_class_entry *class_type) /* {{{ */
3673 {
3674 	zend_object *intern;
3675 
3676 	intern = zend_objects_new(class_type);
3677 
3678 	/* Initialize default properties */
3679 	if (EXPECTED(class_type->default_properties_count != 0)) {
3680 		zval *p = intern->properties_table;
3681 		zval *end = p + class_type->default_properties_count;
3682 		do {
3683 			ZVAL_UNDEF(p);
3684 			p++;
3685 		} while (p != end);
3686 	}
3687 
3688 	zend_error(E_WARNING, "%s() has been disabled for security reasons", ZSTR_VAL(class_type->name));
3689 	return intern;
3690 }
3691 #ifdef ZEND_WIN32
3692 #pragma optimize("", on)
3693 #endif
3694 /* }}} */
3695 
3696 static const zend_function_entry disabled_class_new[] = {
3697 	ZEND_FE_END
3698 };
3699 
zend_disable_class(const char * class_name,size_t class_name_length)3700 ZEND_API zend_result zend_disable_class(const char *class_name, size_t class_name_length) /* {{{ */
3701 {
3702 	zend_class_entry *disabled_class;
3703 	zend_string *key;
3704 	zend_function *fn;
3705 	zend_property_info *prop;
3706 
3707 	key = zend_string_alloc(class_name_length, 0);
3708 	zend_str_tolower_copy(ZSTR_VAL(key), class_name, class_name_length);
3709 	disabled_class = zend_hash_find_ptr(CG(class_table), key);
3710 	zend_string_release_ex(key, 0);
3711 	if (!disabled_class) {
3712 		return FAILURE;
3713 	}
3714 
3715 	/* Will be reset by INIT_CLASS_ENTRY. */
3716 	free(disabled_class->interfaces);
3717 
3718 	INIT_CLASS_ENTRY_INIT_METHODS((*disabled_class), disabled_class_new);
3719 	disabled_class->create_object = display_disabled_class;
3720 
3721 	ZEND_HASH_MAP_FOREACH_PTR(&disabled_class->function_table, fn) {
3722 		if ((fn->common.fn_flags & (ZEND_ACC_HAS_RETURN_TYPE|ZEND_ACC_HAS_TYPE_HINTS)) &&
3723 			fn->common.scope == disabled_class) {
3724 			zend_free_internal_arg_info(&fn->internal_function);
3725 		}
3726 	} ZEND_HASH_FOREACH_END();
3727 	zend_hash_clean(&disabled_class->function_table);
3728 	ZEND_HASH_MAP_FOREACH_PTR(&disabled_class->properties_info, prop) {
3729 		if (prop->ce == disabled_class) {
3730 			zend_string_release(prop->name);
3731 			zend_type_release(prop->type, /* persistent */ 1);
3732 			free(prop);
3733 		}
3734 	} ZEND_HASH_FOREACH_END();
3735 	zend_hash_clean(&disabled_class->properties_info);
3736 	return SUCCESS;
3737 }
3738 /* }}} */
3739 
get_scope(zend_execute_data * frame)3740 static zend_always_inline zend_class_entry *get_scope(zend_execute_data *frame)
3741 {
3742 	return frame && frame->func ? frame->func->common.scope : NULL;
3743 }
3744 
zend_is_callable_check_class(zend_string * name,zend_class_entry * scope,zend_execute_data * frame,zend_fcall_info_cache * fcc,bool * strict_class,char ** error,bool suppress_deprecation)3745 static bool zend_is_callable_check_class(zend_string *name, zend_class_entry *scope, zend_execute_data *frame, zend_fcall_info_cache *fcc, bool *strict_class, char **error, bool suppress_deprecation) /* {{{ */
3746 {
3747 	bool ret = 0;
3748 	zend_class_entry *ce;
3749 	size_t name_len = ZSTR_LEN(name);
3750 	zend_string *lcname;
3751 	ALLOCA_FLAG(use_heap);
3752 
3753 	ZSTR_ALLOCA_ALLOC(lcname, name_len, use_heap);
3754 	zend_str_tolower_copy(ZSTR_VAL(lcname), ZSTR_VAL(name), name_len);
3755 
3756 	*strict_class = 0;
3757 	if (zend_string_equals_literal(lcname, "self")) {
3758 		if (!scope) {
3759 			if (error) *error = estrdup("cannot access \"self\" when no class scope is active");
3760 		} else {
3761 			if (!suppress_deprecation) {
3762 				zend_error(E_DEPRECATED, "Use of \"self\" in callables is deprecated");
3763 			}
3764 			fcc->called_scope = zend_get_called_scope(frame);
3765 			if (!fcc->called_scope || !instanceof_function(fcc->called_scope, scope)) {
3766 				fcc->called_scope = scope;
3767 			}
3768 			fcc->calling_scope = scope;
3769 			if (!fcc->object) {
3770 				fcc->object = zend_get_this_object(frame);
3771 			}
3772 			ret = 1;
3773 		}
3774 	} else if (zend_string_equals_literal(lcname, "parent")) {
3775 		if (!scope) {
3776 			if (error) *error = estrdup("cannot access \"parent\" when no class scope is active");
3777 		} else if (!scope->parent) {
3778 			if (error) *error = estrdup("cannot access \"parent\" when current class scope has no parent");
3779 		} else {
3780 			if (!suppress_deprecation) {
3781 				zend_error(E_DEPRECATED, "Use of \"parent\" in callables is deprecated");
3782 			}
3783 			fcc->called_scope = zend_get_called_scope(frame);
3784 			if (!fcc->called_scope || !instanceof_function(fcc->called_scope, scope->parent)) {
3785 				fcc->called_scope = scope->parent;
3786 			}
3787 			fcc->calling_scope = scope->parent;
3788 			if (!fcc->object) {
3789 				fcc->object = zend_get_this_object(frame);
3790 			}
3791 			*strict_class = 1;
3792 			ret = 1;
3793 		}
3794 	} else if (zend_string_equals(lcname, ZSTR_KNOWN(ZEND_STR_STATIC))) {
3795 		zend_class_entry *called_scope = zend_get_called_scope(frame);
3796 
3797 		if (!called_scope) {
3798 			if (error) *error = estrdup("cannot access \"static\" when no class scope is active");
3799 		} else {
3800 			if (!suppress_deprecation) {
3801 				zend_error(E_DEPRECATED, "Use of \"static\" in callables is deprecated");
3802 			}
3803 			fcc->called_scope = called_scope;
3804 			fcc->calling_scope = called_scope;
3805 			if (!fcc->object) {
3806 				fcc->object = zend_get_this_object(frame);
3807 			}
3808 			*strict_class = 1;
3809 			ret = 1;
3810 		}
3811 	} else if ((ce = zend_lookup_class(name)) != NULL) {
3812 		zend_class_entry *scope = get_scope(frame);
3813 		fcc->calling_scope = ce;
3814 		if (scope && !fcc->object) {
3815 			zend_object *object = zend_get_this_object(frame);
3816 
3817 			if (object &&
3818 			    instanceof_function(object->ce, scope) &&
3819 			    instanceof_function(scope, ce)) {
3820 				fcc->object = object;
3821 				fcc->called_scope = object->ce;
3822 			} else {
3823 				fcc->called_scope = ce;
3824 			}
3825 		} else {
3826 			fcc->called_scope = fcc->object ? fcc->object->ce : ce;
3827 		}
3828 		*strict_class = 1;
3829 		ret = 1;
3830 	} else {
3831 		if (error) zend_spprintf(error, 0, "class \"%.*s\" not found", (int)name_len, ZSTR_VAL(name));
3832 	}
3833 	ZSTR_ALLOCA_FREE(lcname, use_heap);
3834 	return ret;
3835 }
3836 /* }}} */
3837 
zend_release_fcall_info_cache(zend_fcall_info_cache * fcc)3838 ZEND_API void zend_release_fcall_info_cache(zend_fcall_info_cache *fcc) {
3839 	if (fcc->function_handler &&
3840 		(fcc->function_handler->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE)) {
3841 		if (fcc->function_handler->common.function_name) {
3842 			zend_string_release_ex(fcc->function_handler->common.function_name, 0);
3843 		}
3844 		zend_free_trampoline(fcc->function_handler);
3845 		fcc->function_handler = NULL;
3846 	}
3847 }
3848 
zend_is_callable_check_func(zval * callable,zend_execute_data * frame,zend_fcall_info_cache * fcc,bool strict_class,char ** error,bool suppress_deprecation)3849 static zend_always_inline bool zend_is_callable_check_func(zval *callable, zend_execute_data *frame, zend_fcall_info_cache *fcc, bool strict_class, char **error, bool suppress_deprecation) /* {{{ */
3850 {
3851 	zend_class_entry *ce_org = fcc->calling_scope;
3852 	bool retval = 0;
3853 	zend_string *mname, *cname;
3854 	zend_string *lmname;
3855 	const char *colon;
3856 	size_t clen;
3857 	HashTable *ftable;
3858 	int call_via_handler = 0;
3859 	zend_class_entry *scope;
3860 	zval *zv;
3861 	ALLOCA_FLAG(use_heap)
3862 
3863 	fcc->calling_scope = NULL;
3864 
3865 	if (!ce_org) {
3866 		zend_function *func;
3867 		zend_string *lmname;
3868 
3869 		/* Check if function with given name exists.
3870 		 * This may be a compound name that includes namespace name */
3871 		if (UNEXPECTED(Z_STRVAL_P(callable)[0] == '\\')) {
3872 			/* Skip leading \ */
3873 			ZSTR_ALLOCA_ALLOC(lmname, Z_STRLEN_P(callable) - 1, use_heap);
3874 			zend_str_tolower_copy(ZSTR_VAL(lmname), Z_STRVAL_P(callable) + 1, Z_STRLEN_P(callable) - 1);
3875 			func = zend_fetch_function(lmname);
3876 			ZSTR_ALLOCA_FREE(lmname, use_heap);
3877 		} else {
3878 			lmname = Z_STR_P(callable);
3879 			func = zend_fetch_function(lmname);
3880 			if (!func) {
3881 				ZSTR_ALLOCA_ALLOC(lmname, Z_STRLEN_P(callable), use_heap);
3882 				zend_str_tolower_copy(ZSTR_VAL(lmname), Z_STRVAL_P(callable), Z_STRLEN_P(callable));
3883 				func = zend_fetch_function(lmname);
3884 				ZSTR_ALLOCA_FREE(lmname, use_heap);
3885 			}
3886 		}
3887 		if (EXPECTED(func != NULL)) {
3888 			fcc->function_handler = func;
3889 			return 1;
3890 		}
3891 	}
3892 
3893 	/* Split name into class/namespace and method/function names */
3894 	if ((colon = zend_memrchr(Z_STRVAL_P(callable), ':', Z_STRLEN_P(callable))) != NULL &&
3895 		colon > Z_STRVAL_P(callable) &&
3896 		*(colon-1) == ':'
3897 	) {
3898 		size_t mlen;
3899 
3900 		colon--;
3901 		clen = colon - Z_STRVAL_P(callable);
3902 		mlen = Z_STRLEN_P(callable) - clen - 2;
3903 
3904 		if (colon == Z_STRVAL_P(callable)) {
3905 			if (error) *error = estrdup("invalid function name");
3906 			return 0;
3907 		}
3908 
3909 		/* This is a compound name.
3910 		 * Try to fetch class and then find static method. */
3911 		if (ce_org) {
3912 			scope = ce_org;
3913 		} else {
3914 			scope = get_scope(frame);
3915 		}
3916 
3917 		cname = zend_string_init_interned(Z_STRVAL_P(callable), clen, 0);
3918 		if (ZSTR_HAS_CE_CACHE(cname) && ZSTR_GET_CE_CACHE(cname)) {
3919 			fcc->calling_scope = ZSTR_GET_CE_CACHE(cname);
3920 			if (scope && !fcc->object) {
3921 				zend_object *object = zend_get_this_object(frame);
3922 
3923 				if (object &&
3924 				    instanceof_function(object->ce, scope) &&
3925 				    instanceof_function(scope, fcc->calling_scope)) {
3926 					fcc->object = object;
3927 					fcc->called_scope = object->ce;
3928 				} else {
3929 					fcc->called_scope = fcc->calling_scope;
3930 				}
3931 			} else {
3932 				fcc->called_scope = fcc->object ? fcc->object->ce : fcc->calling_scope;
3933 			}
3934 			strict_class = 1;
3935 		} else if (!zend_is_callable_check_class(cname, scope, frame, fcc, &strict_class, error, suppress_deprecation || ce_org != NULL)) {
3936 			zend_string_release_ex(cname, 0);
3937 			return 0;
3938 		}
3939 		zend_string_release_ex(cname, 0);
3940 
3941 		ftable = &fcc->calling_scope->function_table;
3942 		if (ce_org && !instanceof_function(ce_org, fcc->calling_scope)) {
3943 			if (error) zend_spprintf(error, 0, "class %s is not a subclass of %s", ZSTR_VAL(ce_org->name), ZSTR_VAL(fcc->calling_scope->name));
3944 			return 0;
3945 		}
3946 		if (ce_org && !suppress_deprecation) {
3947 			zend_error(E_DEPRECATED,
3948 				"Callables of the form [\"%s\", \"%s\"] are deprecated",
3949 				ZSTR_VAL(ce_org->name), Z_STRVAL_P(callable));
3950 		}
3951 		mname = zend_string_init(Z_STRVAL_P(callable) + clen + 2, mlen, 0);
3952 	} else if (ce_org) {
3953 		/* Try to fetch find static method of given class. */
3954 		mname = Z_STR_P(callable);
3955 		zend_string_addref(mname);
3956 		ftable = &ce_org->function_table;
3957 		fcc->calling_scope = ce_org;
3958 	} else {
3959 		/* We already checked for plain function before. */
3960 		if (error) {
3961 			zend_spprintf(error, 0, "function \"%s\" not found or invalid function name", Z_STRVAL_P(callable));
3962 		}
3963 		return 0;
3964 	}
3965 
3966 	lmname = zend_string_tolower(mname);
3967 	if (strict_class &&
3968 	    fcc->calling_scope &&
3969 		zend_string_equals_literal(lmname, ZEND_CONSTRUCTOR_FUNC_NAME)) {
3970 		fcc->function_handler = fcc->calling_scope->constructor;
3971 		if (fcc->function_handler) {
3972 			retval = 1;
3973 		}
3974 	} else if ((zv = zend_hash_find(ftable, lmname)) != NULL) {
3975 		fcc->function_handler = Z_PTR_P(zv);
3976 		retval = 1;
3977 		if ((fcc->function_handler->op_array.fn_flags & ZEND_ACC_CHANGED) &&
3978 		    !strict_class) {
3979 			scope = get_scope(frame);
3980 			if (scope &&
3981 			    instanceof_function(fcc->function_handler->common.scope, scope)) {
3982 
3983 				zv = zend_hash_find(&scope->function_table, lmname);
3984 				if (zv != NULL) {
3985 					zend_function *priv_fbc = Z_PTR_P(zv);
3986 
3987 					if ((priv_fbc->common.fn_flags & ZEND_ACC_PRIVATE)
3988 					 && priv_fbc->common.scope == scope) {
3989 						fcc->function_handler = priv_fbc;
3990 					}
3991 				}
3992 			}
3993 		}
3994 		if (!(fcc->function_handler->common.fn_flags & ZEND_ACC_PUBLIC) &&
3995 		    (fcc->calling_scope &&
3996 		     ((fcc->object && fcc->calling_scope->__call) ||
3997 		      (!fcc->object && fcc->calling_scope->__callstatic)))) {
3998 			scope = get_scope(frame);
3999 			if (fcc->function_handler->common.scope != scope) {
4000 				if ((fcc->function_handler->common.fn_flags & ZEND_ACC_PRIVATE)
4001 				 || !zend_check_protected(zend_get_function_root_class(fcc->function_handler), scope)) {
4002 					retval = 0;
4003 					fcc->function_handler = NULL;
4004 					goto get_function_via_handler;
4005 				}
4006 			}
4007 		}
4008 	} else {
4009 get_function_via_handler:
4010 		if (fcc->object && fcc->calling_scope == ce_org) {
4011 			if (strict_class && ce_org->__call) {
4012 				fcc->function_handler = zend_get_call_trampoline_func(ce_org, mname, 0);
4013 				call_via_handler = 1;
4014 				retval = 1;
4015 			} else {
4016 				fcc->function_handler = fcc->object->handlers->get_method(&fcc->object, mname, NULL);
4017 				if (fcc->function_handler) {
4018 					if (strict_class &&
4019 					    (!fcc->function_handler->common.scope ||
4020 					     !instanceof_function(ce_org, fcc->function_handler->common.scope))) {
4021 						zend_release_fcall_info_cache(fcc);
4022 					} else {
4023 						retval = 1;
4024 						call_via_handler = (fcc->function_handler->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE) != 0;
4025 					}
4026 				}
4027 			}
4028 		} else if (fcc->calling_scope) {
4029 			if (fcc->calling_scope->get_static_method) {
4030 				fcc->function_handler = fcc->calling_scope->get_static_method(fcc->calling_scope, mname);
4031 			} else {
4032 				fcc->function_handler = zend_std_get_static_method(fcc->calling_scope, mname, NULL);
4033 			}
4034 			if (fcc->function_handler) {
4035 				retval = 1;
4036 				call_via_handler = (fcc->function_handler->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE) != 0;
4037 				if (call_via_handler && !fcc->object) {
4038 					zend_object *object = zend_get_this_object(frame);
4039 					if (object &&
4040 					    instanceof_function(object->ce, fcc->calling_scope)) {
4041 						fcc->object = object;
4042 					}
4043 				}
4044 			}
4045 		}
4046 	}
4047 
4048 	if (retval) {
4049 		if (fcc->calling_scope && !call_via_handler) {
4050 			if (fcc->function_handler->common.fn_flags & ZEND_ACC_ABSTRACT) {
4051 				retval = 0;
4052 				if (error) {
4053 					zend_spprintf(error, 0, "cannot call abstract method %s::%s()", ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(fcc->function_handler->common.function_name));
4054 				}
4055 			} else if (!fcc->object && !(fcc->function_handler->common.fn_flags & ZEND_ACC_STATIC)) {
4056 				retval = 0;
4057 				if (error) {
4058 					zend_spprintf(error, 0, "non-static method %s::%s() cannot be called statically", ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(fcc->function_handler->common.function_name));
4059 				}
4060 			}
4061 			if (retval
4062 			 && !(fcc->function_handler->common.fn_flags & ZEND_ACC_PUBLIC)) {
4063 				scope = get_scope(frame);
4064 				if (fcc->function_handler->common.scope != scope) {
4065 					if ((fcc->function_handler->common.fn_flags & ZEND_ACC_PRIVATE)
4066 					 || (!zend_check_protected(zend_get_function_root_class(fcc->function_handler), scope))) {
4067 						if (error) {
4068 							if (*error) {
4069 								efree(*error);
4070 							}
4071 							zend_spprintf(error, 0, "cannot access %s method %s::%s()", zend_visibility_string(fcc->function_handler->common.fn_flags), ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(fcc->function_handler->common.function_name));
4072 						}
4073 						retval = 0;
4074 					}
4075 				}
4076 			}
4077 		}
4078 	} else if (error) {
4079 		if (fcc->calling_scope) {
4080 			zend_spprintf(error, 0, "class %s does not have a method \"%s\"", ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(mname));
4081 		} else {
4082 			zend_spprintf(error, 0, "function %s() does not exist", ZSTR_VAL(mname));
4083 		}
4084 	}
4085 	zend_string_release_ex(lmname, 0);
4086 	zend_string_release_ex(mname, 0);
4087 
4088 	if (fcc->object) {
4089 		fcc->called_scope = fcc->object->ce;
4090 		if (fcc->function_handler
4091 		 && (fcc->function_handler->common.fn_flags & ZEND_ACC_STATIC)) {
4092 			fcc->object = NULL;
4093 		}
4094 	}
4095 	return retval;
4096 }
4097 /* }}} */
4098 
zend_get_callable_name_ex(zval * callable,zend_object * object)4099 ZEND_API zend_string *zend_get_callable_name_ex(zval *callable, zend_object *object) /* {{{ */
4100 {
4101 try_again:
4102 	switch (Z_TYPE_P(callable)) {
4103 		case IS_STRING:
4104 			if (object) {
4105 				return zend_create_member_string(object->ce->name, Z_STR_P(callable));
4106 			}
4107 			return zend_string_copy(Z_STR_P(callable));
4108 
4109 		case IS_ARRAY:
4110 		{
4111 			zval *method = NULL;
4112 			zval *obj = NULL;
4113 
4114 			if (zend_hash_num_elements(Z_ARRVAL_P(callable)) == 2) {
4115 				obj = zend_hash_index_find_deref(Z_ARRVAL_P(callable), 0);
4116 				method = zend_hash_index_find_deref(Z_ARRVAL_P(callable), 1);
4117 			}
4118 
4119 			if (obj == NULL || method == NULL || Z_TYPE_P(method) != IS_STRING) {
4120 				return ZSTR_KNOWN(ZEND_STR_ARRAY_CAPITALIZED);
4121 			}
4122 
4123 			if (Z_TYPE_P(obj) == IS_STRING) {
4124 				return zend_create_member_string(Z_STR_P(obj), Z_STR_P(method));
4125 			} else if (Z_TYPE_P(obj) == IS_OBJECT) {
4126 				return zend_create_member_string(Z_OBJCE_P(obj)->name, Z_STR_P(method));
4127 			} else {
4128 				return ZSTR_KNOWN(ZEND_STR_ARRAY_CAPITALIZED);
4129 			}
4130 		}
4131 		case IS_OBJECT:
4132 		{
4133 			zend_class_entry *ce = Z_OBJCE_P(callable);
4134 			return zend_string_concat2(
4135 				ZSTR_VAL(ce->name), ZSTR_LEN(ce->name),
4136 				"::__invoke", sizeof("::__invoke") - 1);
4137 		}
4138 		case IS_REFERENCE:
4139 			callable = Z_REFVAL_P(callable);
4140 			goto try_again;
4141 		default:
4142 			return zval_get_string_func(callable);
4143 	}
4144 }
4145 /* }}} */
4146 
zend_get_callable_name(zval * callable)4147 ZEND_API zend_string *zend_get_callable_name(zval *callable) /* {{{ */
4148 {
4149 	return zend_get_callable_name_ex(callable, NULL);
4150 }
4151 /* }}} */
4152 
zend_is_callable_at_frame(zval * callable,zend_object * object,zend_execute_data * frame,uint32_t check_flags,zend_fcall_info_cache * fcc,char ** error)4153 ZEND_API bool zend_is_callable_at_frame(
4154 		zval *callable, zend_object *object, zend_execute_data *frame,
4155 		uint32_t check_flags, zend_fcall_info_cache *fcc, char **error) /* {{{ */
4156 {
4157 	bool ret;
4158 	zend_fcall_info_cache fcc_local;
4159 	bool strict_class = 0;
4160 
4161 	if (fcc == NULL) {
4162 		fcc = &fcc_local;
4163 	}
4164 	if (error) {
4165 		*error = NULL;
4166 	}
4167 
4168 	fcc->calling_scope = NULL;
4169 	fcc->called_scope = NULL;
4170 	fcc->function_handler = NULL;
4171 	fcc->object = NULL;
4172 	fcc->closure = NULL;
4173 
4174 again:
4175 	switch (Z_TYPE_P(callable)) {
4176 		case IS_STRING:
4177 			if (object) {
4178 				fcc->object = object;
4179 				fcc->calling_scope = object->ce;
4180 			}
4181 
4182 			if (check_flags & IS_CALLABLE_CHECK_SYNTAX_ONLY) {
4183 				fcc->called_scope = fcc->calling_scope;
4184 				return 1;
4185 			}
4186 
4187 check_func:
4188 			ret = zend_is_callable_check_func(callable, frame, fcc, strict_class, error, check_flags & IS_CALLABLE_SUPPRESS_DEPRECATIONS);
4189 			if (fcc == &fcc_local) {
4190 				zend_release_fcall_info_cache(fcc);
4191 			}
4192 			return ret;
4193 
4194 		case IS_ARRAY:
4195 			{
4196 				if (zend_hash_num_elements(Z_ARRVAL_P(callable)) != 2) {
4197 					if (error) *error = estrdup("array callback must have exactly two members");
4198 					return 0;
4199 				}
4200 
4201 				zval *obj = zend_hash_index_find(Z_ARRVAL_P(callable), 0);
4202 				zval *method = zend_hash_index_find(Z_ARRVAL_P(callable), 1);
4203 				if (!obj || !method) {
4204 					if (error) *error = estrdup("array callback has to contain indices 0 and 1");
4205 					return 0;
4206 				}
4207 
4208 				ZVAL_DEREF(obj);
4209 				if (Z_TYPE_P(obj) != IS_STRING && Z_TYPE_P(obj) != IS_OBJECT) {
4210 					if (error) *error = estrdup("first array member is not a valid class name or object");
4211 					return 0;
4212 				}
4213 
4214 				ZVAL_DEREF(method);
4215 				if (Z_TYPE_P(method) != IS_STRING) {
4216 					if (error) *error = estrdup("second array member is not a valid method");
4217 					return 0;
4218 				}
4219 
4220 				if (Z_TYPE_P(obj) == IS_STRING) {
4221 					if (check_flags & IS_CALLABLE_CHECK_SYNTAX_ONLY) {
4222 						return 1;
4223 					}
4224 
4225 					if (!zend_is_callable_check_class(Z_STR_P(obj), get_scope(frame), frame, fcc, &strict_class, error, check_flags & IS_CALLABLE_SUPPRESS_DEPRECATIONS)) {
4226 						return 0;
4227 					}
4228 				} else {
4229 					ZEND_ASSERT(Z_TYPE_P(obj) == IS_OBJECT);
4230 					fcc->calling_scope = Z_OBJCE_P(obj); /* TBFixed: what if it's overloaded? */
4231 					fcc->object = Z_OBJ_P(obj);
4232 
4233 					if (check_flags & IS_CALLABLE_CHECK_SYNTAX_ONLY) {
4234 						fcc->called_scope = fcc->calling_scope;
4235 						return 1;
4236 					}
4237 				}
4238 
4239 				callable = method;
4240 				goto check_func;
4241 			}
4242 			return 0;
4243 		case IS_OBJECT:
4244 			if (Z_OBJ_HANDLER_P(callable, get_closure) && Z_OBJ_HANDLER_P(callable, get_closure)(Z_OBJ_P(callable), &fcc->calling_scope, &fcc->function_handler, &fcc->object, 1) == SUCCESS) {
4245 				fcc->called_scope = fcc->calling_scope;
4246 				fcc->closure = Z_OBJ_P(callable);
4247 				if (fcc == &fcc_local) {
4248 					zend_release_fcall_info_cache(fcc);
4249 				}
4250 				return 1;
4251 			}
4252 			if (error) *error = estrdup("no array or string given");
4253 			return 0;
4254 		case IS_REFERENCE:
4255 			callable = Z_REFVAL_P(callable);
4256 			goto again;
4257 		default:
4258 			if (error) *error = estrdup("no array or string given");
4259 			return 0;
4260 	}
4261 }
4262 /* }}} */
4263 
zend_is_callable_ex(zval * callable,zend_object * object,uint32_t check_flags,zend_string ** callable_name,zend_fcall_info_cache * fcc,char ** error)4264 ZEND_API bool zend_is_callable_ex(zval *callable, zend_object *object, uint32_t check_flags, zend_string **callable_name, zend_fcall_info_cache *fcc, char **error) /* {{{ */
4265 {
4266 	/* Determine callability at the first parent user frame. */
4267 	zend_execute_data *frame = EG(current_execute_data);
4268 	while (frame && (!frame->func || !ZEND_USER_CODE(frame->func->type))) {
4269 		frame = frame->prev_execute_data;
4270 	}
4271 
4272 	bool ret = zend_is_callable_at_frame(callable, object, frame, check_flags, fcc, error);
4273 	if (callable_name) {
4274 		*callable_name = zend_get_callable_name_ex(callable, object);
4275 	}
4276 	return ret;
4277 }
4278 
zend_is_callable(zval * callable,uint32_t check_flags,zend_string ** callable_name)4279 ZEND_API bool zend_is_callable(zval *callable, uint32_t check_flags, zend_string **callable_name) /* {{{ */
4280 {
4281 	return zend_is_callable_ex(callable, NULL, check_flags, callable_name, NULL, NULL);
4282 }
4283 /* }}} */
4284 
zend_make_callable(zval * callable,zend_string ** callable_name)4285 ZEND_API bool zend_make_callable(zval *callable, zend_string **callable_name) /* {{{ */
4286 {
4287 	zend_fcall_info_cache fcc;
4288 
4289 	if (zend_is_callable_ex(callable, NULL, IS_CALLABLE_SUPPRESS_DEPRECATIONS, callable_name, &fcc, NULL)) {
4290 		if (Z_TYPE_P(callable) == IS_STRING && fcc.calling_scope) {
4291 			zval_ptr_dtor_str(callable);
4292 			array_init(callable);
4293 			add_next_index_str(callable, zend_string_copy(fcc.calling_scope->name));
4294 			add_next_index_str(callable, zend_string_copy(fcc.function_handler->common.function_name));
4295 		}
4296 		zend_release_fcall_info_cache(&fcc);
4297 		return 1;
4298 	}
4299 	return 0;
4300 }
4301 /* }}} */
4302 
zend_fcall_info_init(zval * callable,uint32_t check_flags,zend_fcall_info * fci,zend_fcall_info_cache * fcc,zend_string ** callable_name,char ** error)4303 ZEND_API zend_result zend_fcall_info_init(zval *callable, uint32_t check_flags, zend_fcall_info *fci, zend_fcall_info_cache *fcc, zend_string **callable_name, char **error) /* {{{ */
4304 {
4305 	if (!zend_is_callable_ex(callable, NULL, check_flags, callable_name, fcc, error)) {
4306 		return FAILURE;
4307 	}
4308 
4309 	fci->size = sizeof(*fci);
4310 	fci->object = fcc->object;
4311 	ZVAL_COPY_VALUE(&fci->function_name, callable);
4312 	fci->retval = NULL;
4313 	fci->param_count = 0;
4314 	fci->params = NULL;
4315 	fci->named_params = NULL;
4316 
4317 	return SUCCESS;
4318 }
4319 /* }}} */
4320 
zend_fcall_info_args_clear(zend_fcall_info * fci,bool free_mem)4321 ZEND_API void zend_fcall_info_args_clear(zend_fcall_info *fci, bool free_mem) /* {{{ */
4322 {
4323 	if (fci->params) {
4324 		zval *p = fci->params;
4325 		zval *end = p + fci->param_count;
4326 
4327 		while (p != end) {
4328 			i_zval_ptr_dtor(p);
4329 			p++;
4330 		}
4331 		if (free_mem) {
4332 			efree(fci->params);
4333 			fci->params = NULL;
4334 		}
4335 	}
4336 	fci->param_count = 0;
4337 }
4338 /* }}} */
4339 
zend_fcall_info_args_save(zend_fcall_info * fci,uint32_t * param_count,zval ** params)4340 ZEND_API void zend_fcall_info_args_save(zend_fcall_info *fci, uint32_t *param_count, zval **params) /* {{{ */
4341 {
4342 	*param_count = fci->param_count;
4343 	*params = fci->params;
4344 	fci->param_count = 0;
4345 	fci->params = NULL;
4346 }
4347 /* }}} */
4348 
zend_fcall_info_args_restore(zend_fcall_info * fci,uint32_t param_count,zval * params)4349 ZEND_API void zend_fcall_info_args_restore(zend_fcall_info *fci, uint32_t param_count, zval *params) /* {{{ */
4350 {
4351 	zend_fcall_info_args_clear(fci, 1);
4352 	fci->param_count = param_count;
4353 	fci->params = params;
4354 }
4355 /* }}} */
4356 
zend_fcall_info_args_ex(zend_fcall_info * fci,zend_function * func,zval * args)4357 ZEND_API zend_result zend_fcall_info_args_ex(zend_fcall_info *fci, zend_function *func, zval *args) /* {{{ */
4358 {
4359 	zval *arg, *params;
4360 	uint32_t n = 1;
4361 
4362 	zend_fcall_info_args_clear(fci, !args);
4363 
4364 	if (!args) {
4365 		return SUCCESS;
4366 	}
4367 
4368 	if (Z_TYPE_P(args) != IS_ARRAY) {
4369 		return FAILURE;
4370 	}
4371 
4372 	fci->param_count = zend_hash_num_elements(Z_ARRVAL_P(args));
4373 	fci->params = params = (zval *) erealloc(fci->params, fci->param_count * sizeof(zval));
4374 
4375 	ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(args), arg) {
4376 		if (func && !Z_ISREF_P(arg) && ARG_SHOULD_BE_SENT_BY_REF(func, n)) {
4377 			ZVAL_NEW_REF(params, arg);
4378 			Z_TRY_ADDREF_P(arg);
4379 		} else {
4380 			ZVAL_COPY(params, arg);
4381 		}
4382 		params++;
4383 		n++;
4384 	} ZEND_HASH_FOREACH_END();
4385 
4386 	return SUCCESS;
4387 }
4388 /* }}} */
4389 
zend_fcall_info_args(zend_fcall_info * fci,zval * args)4390 ZEND_API zend_result zend_fcall_info_args(zend_fcall_info *fci, zval *args) /* {{{ */
4391 {
4392 	return zend_fcall_info_args_ex(fci, NULL, args);
4393 }
4394 /* }}} */
4395 
zend_fcall_info_argp(zend_fcall_info * fci,uint32_t argc,zval * argv)4396 ZEND_API void zend_fcall_info_argp(zend_fcall_info *fci, uint32_t argc, zval *argv) /* {{{ */
4397 {
4398 	zend_fcall_info_args_clear(fci, !argc);
4399 
4400 	if (argc) {
4401 		fci->param_count = argc;
4402 		fci->params = (zval *) erealloc(fci->params, fci->param_count * sizeof(zval));
4403 
4404 		for (uint32_t i = 0; i < argc; ++i) {
4405 			ZVAL_COPY(&fci->params[i], &argv[i]);
4406 		}
4407 	}
4408 }
4409 /* }}} */
4410 
zend_fcall_info_argv(zend_fcall_info * fci,uint32_t argc,va_list * argv)4411 ZEND_API void zend_fcall_info_argv(zend_fcall_info *fci, uint32_t argc, va_list *argv) /* {{{ */
4412 {
4413 	zend_fcall_info_args_clear(fci, !argc);
4414 
4415 	if (argc) {
4416 		zval *arg;
4417 		fci->param_count = argc;
4418 		fci->params = (zval *) erealloc(fci->params, fci->param_count * sizeof(zval));
4419 
4420 		for (uint32_t i = 0; i < argc; ++i) {
4421 			arg = va_arg(*argv, zval *);
4422 			ZVAL_COPY(&fci->params[i], arg);
4423 		}
4424 	}
4425 }
4426 /* }}} */
4427 
zend_fcall_info_argn(zend_fcall_info * fci,uint32_t argc,...)4428 ZEND_API void zend_fcall_info_argn(zend_fcall_info *fci, uint32_t argc, ...) /* {{{ */
4429 {
4430 	va_list argv;
4431 
4432 	va_start(argv, argc);
4433 	zend_fcall_info_argv(fci, argc, &argv);
4434 	va_end(argv);
4435 }
4436 /* }}} */
4437 
zend_fcall_info_call(zend_fcall_info * fci,zend_fcall_info_cache * fcc,zval * retval_ptr,zval * args)4438 ZEND_API zend_result zend_fcall_info_call(zend_fcall_info *fci, zend_fcall_info_cache *fcc, zval *retval_ptr, zval *args) /* {{{ */
4439 {
4440 	zval retval, *org_params = NULL;
4441 	uint32_t org_count = 0;
4442 	zend_result result;
4443 
4444 	fci->retval = retval_ptr ? retval_ptr : &retval;
4445 	if (args) {
4446 		zend_fcall_info_args_save(fci, &org_count, &org_params);
4447 		zend_fcall_info_args(fci, args);
4448 	}
4449 	result = zend_call_function(fci, fcc);
4450 
4451 	if (!retval_ptr && Z_TYPE(retval) != IS_UNDEF) {
4452 		zval_ptr_dtor(&retval);
4453 	}
4454 	if (args) {
4455 		zend_fcall_info_args_restore(fci, org_count, org_params);
4456 	}
4457 	return result;
4458 }
4459 /* }}} */
4460 
zend_get_callable_zval_from_fcc(const zend_fcall_info_cache * fcc,zval * callable)4461 ZEND_API void zend_get_callable_zval_from_fcc(const zend_fcall_info_cache *fcc, zval *callable)
4462 {
4463 	if (fcc->closure) {
4464 		ZVAL_OBJ_COPY(callable, fcc->closure);
4465 	} else if (fcc->function_handler->common.scope) {
4466 		array_init(callable);
4467 		if (fcc->object) {
4468 			GC_ADDREF(fcc->object);
4469 			add_next_index_object(callable, fcc->object);
4470 		} else {
4471 			add_next_index_str(callable, zend_string_copy(fcc->calling_scope->name));
4472 		}
4473 		add_next_index_str(callable, zend_string_copy(fcc->function_handler->common.function_name));
4474 	} else {
4475 		ZVAL_STR_COPY(callable, fcc->function_handler->common.function_name);
4476 	}
4477 }
4478 
zend_get_module_version(const char * module_name)4479 ZEND_API const char *zend_get_module_version(const char *module_name) /* {{{ */
4480 {
4481 	zend_string *lname;
4482 	size_t name_len = strlen(module_name);
4483 	zend_module_entry *module;
4484 
4485 	lname = zend_string_alloc(name_len, 0);
4486 	zend_str_tolower_copy(ZSTR_VAL(lname), module_name, name_len);
4487 	module = zend_hash_find_ptr(&module_registry, lname);
4488 	zend_string_efree(lname);
4489 	return module ? module->version : NULL;
4490 }
4491 /* }}} */
4492 
is_persistent_class(zend_class_entry * ce)4493 static zend_always_inline bool is_persistent_class(zend_class_entry *ce) {
4494 	return (ce->type & ZEND_INTERNAL_CLASS)
4495 		&& ce->info.internal.module->type == MODULE_PERSISTENT;
4496 }
4497 
zend_declare_typed_property(zend_class_entry * ce,zend_string * name,zval * property,int access_type,zend_string * doc_comment,zend_type type)4498 ZEND_API zend_property_info *zend_declare_typed_property(zend_class_entry *ce, zend_string *name, zval *property, int access_type, zend_string *doc_comment, zend_type type) /* {{{ */
4499 {
4500 	zend_property_info *property_info, *property_info_ptr;
4501 
4502 	if (ZEND_TYPE_IS_SET(type)) {
4503 		ce->ce_flags |= ZEND_ACC_HAS_TYPE_HINTS;
4504 
4505 		if (access_type & ZEND_ACC_READONLY) {
4506 			ce->ce_flags |= ZEND_ACC_HAS_READONLY_PROPS;
4507 		}
4508 	}
4509 
4510 	if (ce->type == ZEND_INTERNAL_CLASS) {
4511 		property_info = pemalloc(sizeof(zend_property_info), 1);
4512 	} else {
4513 		property_info = zend_arena_alloc(&CG(arena), sizeof(zend_property_info));
4514 		if (Z_TYPE_P(property) == IS_CONSTANT_AST) {
4515 			ce->ce_flags &= ~ZEND_ACC_CONSTANTS_UPDATED;
4516 			if (access_type & ZEND_ACC_STATIC) {
4517 				ce->ce_flags |= ZEND_ACC_HAS_AST_STATICS;
4518 			} else {
4519 				ce->ce_flags |= ZEND_ACC_HAS_AST_PROPERTIES;
4520 			}
4521 		}
4522 	}
4523 
4524 	if (Z_TYPE_P(property) == IS_STRING && !ZSTR_IS_INTERNED(Z_STR_P(property))) {
4525 		zval_make_interned_string(property);
4526 	}
4527 
4528 	if (!(access_type & ZEND_ACC_PPP_MASK)) {
4529 		access_type |= ZEND_ACC_PUBLIC;
4530 	}
4531 	/* Add the protected(set) bit for public readonly properties with no set visibility. */
4532 	if ((access_type & (ZEND_ACC_PUBLIC|ZEND_ACC_READONLY|ZEND_ACC_PPP_SET_MASK)) == (ZEND_ACC_PUBLIC|ZEND_ACC_READONLY)) {
4533 		access_type |= ZEND_ACC_PROTECTED_SET;
4534 	} else if (UNEXPECTED(access_type & ZEND_ACC_PPP_SET_MASK)) {
4535 		if (!ZEND_TYPE_IS_SET(type)) {
4536 			zend_error_noreturn(ce->type == ZEND_INTERNAL_CLASS ? E_CORE_ERROR : E_COMPILE_ERROR,
4537 				"Property with asymmetric visibility %s::$%s must have type",
4538 				ZSTR_VAL(ce->name), ZSTR_VAL(name));
4539 		}
4540 		uint32_t get_visibility = zend_visibility_to_set_visibility(access_type & ZEND_ACC_PPP_MASK);
4541 		uint32_t set_visibility = access_type & ZEND_ACC_PPP_SET_MASK;
4542 		if (get_visibility > set_visibility) {
4543 			zend_error_noreturn(ce->type == ZEND_INTERNAL_CLASS ? E_CORE_ERROR : E_COMPILE_ERROR,
4544 				"Visibility of property %s::$%s must not be weaker than set visibility",
4545 				ZSTR_VAL(ce->name), ZSTR_VAL(name));
4546 		}
4547 		/* Remove equivalent set visibility. */
4548 		if (((access_type & (ZEND_ACC_PUBLIC|ZEND_ACC_PUBLIC_SET)) == (ZEND_ACC_PUBLIC|ZEND_ACC_PUBLIC_SET))
4549 		 || ((access_type & (ZEND_ACC_PROTECTED|ZEND_ACC_PROTECTED_SET)) == (ZEND_ACC_PROTECTED|ZEND_ACC_PROTECTED_SET))
4550 		 || ((access_type & (ZEND_ACC_PRIVATE|ZEND_ACC_PRIVATE_SET)) == (ZEND_ACC_PRIVATE|ZEND_ACC_PRIVATE_SET))) {
4551 			access_type &= ~ZEND_ACC_PPP_SET_MASK;
4552 		}
4553 		/* private(set) properties are implicitly final. */
4554 		if (access_type & ZEND_ACC_PRIVATE_SET) {
4555 			access_type |= ZEND_ACC_FINAL;
4556 		}
4557 	}
4558 
4559 	/* Virtual properties have no backing storage, the offset should never be used. However, the
4560 	 * virtual flag cannot be definitively determined at compile time. Allow using default values
4561 	 * anyway, and assert after inheritance that the property is not actually virtual. */
4562 	if (access_type & ZEND_ACC_VIRTUAL) {
4563 		if (Z_TYPE_P(property) == IS_UNDEF) {
4564 			property_info->offset = (uint32_t)-1;
4565 			goto skip_property_storage;
4566 		}
4567 	}
4568 	if (access_type & ZEND_ACC_STATIC) {
4569 		if ((property_info_ptr = zend_hash_find_ptr(&ce->properties_info, name)) != NULL) {
4570 			ZEND_ASSERT(property_info_ptr->flags & ZEND_ACC_STATIC);
4571 			property_info->offset = property_info_ptr->offset;
4572 			zval_ptr_dtor(&ce->default_static_members_table[property_info->offset]);
4573 			if (property_info_ptr->doc_comment && property_info_ptr->ce == ce) {
4574 				zend_string_release(property_info_ptr->doc_comment);
4575 			}
4576 			zend_hash_del(&ce->properties_info, name);
4577 		} else {
4578 			property_info->offset = ce->default_static_members_count++;
4579 			ce->default_static_members_table = perealloc(ce->default_static_members_table, sizeof(zval) * ce->default_static_members_count, ce->type == ZEND_INTERNAL_CLASS);
4580 		}
4581 		ZVAL_COPY_VALUE(&ce->default_static_members_table[property_info->offset], property);
4582 		if (!ZEND_MAP_PTR(ce->static_members_table)) {
4583 			if (ce->type == ZEND_INTERNAL_CLASS &&
4584 					ce->info.internal.module->type == MODULE_PERSISTENT) {
4585 				ZEND_MAP_PTR_NEW(ce->static_members_table);
4586 			}
4587 		}
4588 	} else {
4589 		zval *property_default_ptr;
4590 		if ((property_info_ptr = zend_hash_find_ptr(&ce->properties_info, name)) != NULL) {
4591 			ZEND_ASSERT(!(property_info_ptr->flags & ZEND_ACC_STATIC));
4592 			property_info->offset = property_info_ptr->offset;
4593 			zval_ptr_dtor(&ce->default_properties_table[OBJ_PROP_TO_NUM(property_info->offset)]);
4594 			if (property_info_ptr->doc_comment && property_info_ptr->ce == ce) {
4595 				zend_string_release_ex(property_info_ptr->doc_comment, 1);
4596 			}
4597 			zend_hash_del(&ce->properties_info, name);
4598 
4599 			ZEND_ASSERT(ce->type == ZEND_INTERNAL_CLASS);
4600 			ZEND_ASSERT(ce->properties_info_table != NULL);
4601 			ce->properties_info_table[OBJ_PROP_TO_NUM(property_info->offset)] = property_info;
4602 		} else {
4603 			property_info->offset = OBJ_PROP_TO_OFFSET(ce->default_properties_count);
4604 			ce->default_properties_count++;
4605 			ce->default_properties_table = perealloc(ce->default_properties_table, sizeof(zval) * ce->default_properties_count, ce->type == ZEND_INTERNAL_CLASS);
4606 
4607 			/* For user classes this is handled during linking */
4608 			if (ce->type == ZEND_INTERNAL_CLASS) {
4609 				ce->properties_info_table = perealloc(ce->properties_info_table, sizeof(zend_property_info *) * ce->default_properties_count, 1);
4610 				ce->properties_info_table[ce->default_properties_count - 1] = property_info;
4611 			}
4612 		}
4613 		property_default_ptr = &ce->default_properties_table[OBJ_PROP_TO_NUM(property_info->offset)];
4614 		ZVAL_COPY_VALUE(property_default_ptr, property);
4615 		Z_PROP_FLAG_P(property_default_ptr) = Z_ISUNDEF_P(property) ? IS_PROP_UNINIT : 0;
4616 	}
4617 skip_property_storage:
4618 	if (ce->type & ZEND_INTERNAL_CLASS) {
4619 		/* Must be interned to avoid ZTS data races */
4620 		if (is_persistent_class(ce)) {
4621 			name = zend_new_interned_string(zend_string_copy(name));
4622 		}
4623 
4624 		if (Z_REFCOUNTED_P(property)) {
4625 			zend_error_noreturn(E_CORE_ERROR, "Internal zvals cannot be refcounted");
4626 		}
4627 	}
4628 
4629 	if (access_type & ZEND_ACC_PUBLIC) {
4630 		property_info->name = zend_string_copy(name);
4631 	} else if (access_type & ZEND_ACC_PRIVATE) {
4632 		property_info->name = zend_mangle_property_name(ZSTR_VAL(ce->name), ZSTR_LEN(ce->name), ZSTR_VAL(name), ZSTR_LEN(name), is_persistent_class(ce));
4633 	} else {
4634 		ZEND_ASSERT(access_type & ZEND_ACC_PROTECTED);
4635 		property_info->name = zend_mangle_property_name("*", 1, ZSTR_VAL(name), ZSTR_LEN(name), is_persistent_class(ce));
4636 	}
4637 
4638 	property_info->name = zend_new_interned_string(property_info->name);
4639 	property_info->flags = access_type;
4640 	property_info->doc_comment = doc_comment;
4641 	property_info->attributes = NULL;
4642 	property_info->prototype = property_info;
4643 	property_info->hooks = NULL;
4644 	property_info->ce = ce;
4645 	property_info->type = type;
4646 
4647 	if (is_persistent_class(ce)) {
4648 		zend_normalize_internal_type(&property_info->type);
4649 	}
4650 
4651 	zend_hash_update_ptr(&ce->properties_info, name, property_info);
4652 
4653 	return property_info;
4654 }
4655 /* }}} */
4656 
zend_try_assign_typed_ref_ex(zend_reference * ref,zval * val,bool strict)4657 ZEND_API zend_result zend_try_assign_typed_ref_ex(zend_reference *ref, zval *val, bool strict) /* {{{ */
4658 {
4659 	if (UNEXPECTED(!zend_verify_ref_assignable_zval(ref, val, strict))) {
4660 		zval_ptr_dtor(val);
4661 		return FAILURE;
4662 	} else {
4663 		zval_ptr_dtor(&ref->val);
4664 		ZVAL_COPY_VALUE(&ref->val, val);
4665 		return SUCCESS;
4666 	}
4667 }
4668 /* }}} */
4669 
zend_try_assign_typed_ref(zend_reference * ref,zval * val)4670 ZEND_API zend_result zend_try_assign_typed_ref(zend_reference *ref, zval *val) /* {{{ */
4671 {
4672 	return zend_try_assign_typed_ref_ex(ref, val, ZEND_ARG_USES_STRICT_TYPES());
4673 }
4674 /* }}} */
4675 
zend_try_assign_typed_ref_null(zend_reference * ref)4676 ZEND_API zend_result zend_try_assign_typed_ref_null(zend_reference *ref) /* {{{ */
4677 {
4678 	zval tmp;
4679 
4680 	ZVAL_NULL(&tmp);
4681 	return zend_try_assign_typed_ref(ref, &tmp);
4682 }
4683 /* }}} */
4684 
zend_try_assign_typed_ref_bool(zend_reference * ref,bool val)4685 ZEND_API zend_result zend_try_assign_typed_ref_bool(zend_reference *ref, bool val) /* {{{ */
4686 {
4687 	zval tmp;
4688 
4689 	ZVAL_BOOL(&tmp, val);
4690 	return zend_try_assign_typed_ref(ref, &tmp);
4691 }
4692 /* }}} */
4693 
zend_try_assign_typed_ref_long(zend_reference * ref,zend_long lval)4694 ZEND_API zend_result zend_try_assign_typed_ref_long(zend_reference *ref, zend_long lval) /* {{{ */
4695 {
4696 	zval tmp;
4697 
4698 	ZVAL_LONG(&tmp, lval);
4699 	return zend_try_assign_typed_ref(ref, &tmp);
4700 }
4701 /* }}} */
4702 
zend_try_assign_typed_ref_double(zend_reference * ref,double dval)4703 ZEND_API zend_result zend_try_assign_typed_ref_double(zend_reference *ref, double dval) /* {{{ */
4704 {
4705 	zval tmp;
4706 
4707 	ZVAL_DOUBLE(&tmp, dval);
4708 	return zend_try_assign_typed_ref(ref, &tmp);
4709 }
4710 /* }}} */
4711 
zend_try_assign_typed_ref_empty_string(zend_reference * ref)4712 ZEND_API zend_result zend_try_assign_typed_ref_empty_string(zend_reference *ref) /* {{{ */
4713 {
4714 	zval tmp;
4715 
4716 	ZVAL_EMPTY_STRING(&tmp);
4717 	return zend_try_assign_typed_ref(ref, &tmp);
4718 }
4719 /* }}} */
4720 
zend_try_assign_typed_ref_str(zend_reference * ref,zend_string * str)4721 ZEND_API zend_result zend_try_assign_typed_ref_str(zend_reference *ref, zend_string *str) /* {{{ */
4722 {
4723 	zval tmp;
4724 
4725 	ZVAL_STR(&tmp, str);
4726 	return zend_try_assign_typed_ref(ref, &tmp);
4727 }
4728 /* }}} */
4729 
zend_try_assign_typed_ref_string(zend_reference * ref,const char * string)4730 ZEND_API zend_result zend_try_assign_typed_ref_string(zend_reference *ref, const char *string) /* {{{ */
4731 {
4732 	zval tmp;
4733 
4734 	ZVAL_STRING(&tmp, string);
4735 	return zend_try_assign_typed_ref(ref, &tmp);
4736 }
4737 /* }}} */
4738 
zend_try_assign_typed_ref_stringl(zend_reference * ref,const char * string,size_t len)4739 ZEND_API zend_result zend_try_assign_typed_ref_stringl(zend_reference *ref, const char *string, size_t len) /* {{{ */
4740 {
4741 	zval tmp;
4742 
4743 	ZVAL_STRINGL(&tmp, string, len);
4744 	return zend_try_assign_typed_ref(ref, &tmp);
4745 }
4746 /* }}} */
4747 
zend_try_assign_typed_ref_arr(zend_reference * ref,zend_array * arr)4748 ZEND_API zend_result zend_try_assign_typed_ref_arr(zend_reference *ref, zend_array *arr) /* {{{ */
4749 {
4750 	zval tmp;
4751 
4752 	ZVAL_ARR(&tmp, arr);
4753 	return zend_try_assign_typed_ref(ref, &tmp);
4754 }
4755 /* }}} */
4756 
zend_try_assign_typed_ref_res(zend_reference * ref,zend_resource * res)4757 ZEND_API zend_result zend_try_assign_typed_ref_res(zend_reference *ref, zend_resource *res) /* {{{ */
4758 {
4759 	zval tmp;
4760 
4761 	ZVAL_RES(&tmp, res);
4762 	return zend_try_assign_typed_ref(ref, &tmp);
4763 }
4764 /* }}} */
4765 
zend_try_assign_typed_ref_zval(zend_reference * ref,zval * zv)4766 ZEND_API zend_result zend_try_assign_typed_ref_zval(zend_reference *ref, zval *zv) /* {{{ */
4767 {
4768 	zval tmp;
4769 
4770 	ZVAL_COPY_VALUE(&tmp, zv);
4771 	return zend_try_assign_typed_ref(ref, &tmp);
4772 }
4773 /* }}} */
4774 
zend_try_assign_typed_ref_zval_ex(zend_reference * ref,zval * zv,bool strict)4775 ZEND_API zend_result zend_try_assign_typed_ref_zval_ex(zend_reference *ref, zval *zv, bool strict) /* {{{ */
4776 {
4777 	zval tmp;
4778 
4779 	ZVAL_COPY_VALUE(&tmp, zv);
4780 	return zend_try_assign_typed_ref_ex(ref, &tmp, strict);
4781 }
4782 /* }}} */
4783 
zend_declare_property_ex(zend_class_entry * ce,zend_string * name,zval * property,int access_type,zend_string * doc_comment)4784 ZEND_API void zend_declare_property_ex(zend_class_entry *ce, zend_string *name, zval *property, int access_type, zend_string *doc_comment) /* {{{ */
4785 {
4786 	zend_declare_typed_property(ce, name, property, access_type, doc_comment, (zend_type) ZEND_TYPE_INIT_NONE(0));
4787 }
4788 /* }}} */
4789 
zend_declare_property(zend_class_entry * ce,const char * name,size_t name_length,zval * property,int access_type)4790 ZEND_API void zend_declare_property(zend_class_entry *ce, const char *name, size_t name_length, zval *property, int access_type) /* {{{ */
4791 {
4792 	zend_string *key = zend_string_init(name, name_length, is_persistent_class(ce));
4793 	zend_declare_property_ex(ce, key, property, access_type, NULL);
4794 	zend_string_release(key);
4795 }
4796 /* }}} */
4797 
zend_declare_property_null(zend_class_entry * ce,const char * name,size_t name_length,int access_type)4798 ZEND_API void zend_declare_property_null(zend_class_entry *ce, const char *name, size_t name_length, int access_type) /* {{{ */
4799 {
4800 	zval property;
4801 
4802 	ZVAL_NULL(&property);
4803 	zend_declare_property(ce, name, name_length, &property, access_type);
4804 }
4805 /* }}} */
4806 
zend_declare_property_bool(zend_class_entry * ce,const char * name,size_t name_length,zend_long value,int access_type)4807 ZEND_API void zend_declare_property_bool(zend_class_entry *ce, const char *name, size_t name_length, zend_long value, int access_type) /* {{{ */
4808 {
4809 	zval property;
4810 
4811 	ZVAL_BOOL(&property, value);
4812 	zend_declare_property(ce, name, name_length, &property, access_type);
4813 }
4814 /* }}} */
4815 
zend_declare_property_long(zend_class_entry * ce,const char * name,size_t name_length,zend_long value,int access_type)4816 ZEND_API void zend_declare_property_long(zend_class_entry *ce, const char *name, size_t name_length, zend_long value, int access_type) /* {{{ */
4817 {
4818 	zval property;
4819 
4820 	ZVAL_LONG(&property, value);
4821 	zend_declare_property(ce, name, name_length, &property, access_type);
4822 }
4823 /* }}} */
4824 
zend_declare_property_double(zend_class_entry * ce,const char * name,size_t name_length,double value,int access_type)4825 ZEND_API void zend_declare_property_double(zend_class_entry *ce, const char *name, size_t name_length, double value, int access_type) /* {{{ */
4826 {
4827 	zval property;
4828 
4829 	ZVAL_DOUBLE(&property, value);
4830 	zend_declare_property(ce, name, name_length, &property, access_type);
4831 }
4832 /* }}} */
4833 
zend_declare_property_string(zend_class_entry * ce,const char * name,size_t name_length,const char * value,int access_type)4834 ZEND_API void zend_declare_property_string(zend_class_entry *ce, const char *name, size_t name_length, const char *value, int access_type) /* {{{ */
4835 {
4836 	zval property;
4837 
4838 	ZVAL_NEW_STR(&property, zend_string_init(value, strlen(value), ce->type & ZEND_INTERNAL_CLASS));
4839 	zend_declare_property(ce, name, name_length, &property, access_type);
4840 }
4841 /* }}} */
4842 
zend_declare_property_stringl(zend_class_entry * ce,const char * name,size_t name_length,const char * value,size_t value_len,int access_type)4843 ZEND_API void zend_declare_property_stringl(zend_class_entry *ce, const char *name, size_t name_length, const char *value, size_t value_len, int access_type) /* {{{ */
4844 {
4845 	zval property;
4846 
4847 	ZVAL_NEW_STR(&property, zend_string_init(value, value_len, ce->type & ZEND_INTERNAL_CLASS));
4848 	zend_declare_property(ce, name, name_length, &property, access_type);
4849 }
4850 /* }}} */
4851 
zend_declare_typed_class_constant(zend_class_entry * ce,zend_string * name,zval * value,int flags,zend_string * doc_comment,zend_type type)4852 ZEND_API zend_class_constant *zend_declare_typed_class_constant(zend_class_entry *ce, zend_string *name, zval *value, int flags, zend_string *doc_comment, zend_type type) /* {{{ */
4853 {
4854 	zend_class_constant *c;
4855 
4856 	if (ce->ce_flags & ZEND_ACC_INTERFACE) {
4857 		if (!(flags & ZEND_ACC_PUBLIC)) {
4858 			zend_error_noreturn(E_COMPILE_ERROR, "Access type for interface constant %s::%s must be public", ZSTR_VAL(ce->name), ZSTR_VAL(name));
4859 		}
4860 	}
4861 
4862 	if (zend_string_equals_ci(name, ZSTR_KNOWN(ZEND_STR_CLASS))) {
4863 		zend_error_noreturn(ce->type == ZEND_INTERNAL_CLASS ? E_CORE_ERROR : E_COMPILE_ERROR,
4864 				"A class constant must not be called 'class'; it is reserved for class name fetching");
4865 	}
4866 
4867 	if (Z_TYPE_P(value) == IS_STRING && !ZSTR_IS_INTERNED(Z_STR_P(value))) {
4868 		zval_make_interned_string(value);
4869 	}
4870 
4871 	if (ce->type == ZEND_INTERNAL_CLASS) {
4872 		c = pemalloc(sizeof(zend_class_constant), 1);
4873 		if (ZEND_TYPE_PURE_MASK(type) != MAY_BE_ANY) {
4874 			ZEND_ASSERT(!ZEND_TYPE_CONTAINS_CODE(type, IS_RESOURCE) && "resource is not allowed in a zend_type");
4875 		}
4876 	} else {
4877 		c = zend_arena_alloc(&CG(arena), sizeof(zend_class_constant));
4878 	}
4879 	ZVAL_COPY_VALUE(&c->value, value);
4880 	ZEND_CLASS_CONST_FLAGS(c) = flags;
4881 	c->doc_comment = doc_comment;
4882 	c->attributes = NULL;
4883 	c->ce = ce;
4884 	c->type = type;
4885 
4886 	if (Z_TYPE_P(value) == IS_CONSTANT_AST) {
4887 		ce->ce_flags &= ~ZEND_ACC_CONSTANTS_UPDATED;
4888 		ce->ce_flags |= ZEND_ACC_HAS_AST_CONSTANTS;
4889 		if (ce->type == ZEND_INTERNAL_CLASS && !ZEND_MAP_PTR(ce->mutable_data)) {
4890 			ZEND_MAP_PTR_NEW(ce->mutable_data);
4891 		}
4892 	}
4893 
4894 	if (!zend_hash_add_ptr(&ce->constants_table, name, c)) {
4895 		zend_error_noreturn(ce->type == ZEND_INTERNAL_CLASS ? E_CORE_ERROR : E_COMPILE_ERROR,
4896 			"Cannot redefine class constant %s::%s", ZSTR_VAL(ce->name), ZSTR_VAL(name));
4897 	}
4898 
4899 	return c;
4900 }
4901 
zend_declare_class_constant_ex(zend_class_entry * ce,zend_string * name,zval * value,int flags,zend_string * doc_comment)4902 ZEND_API zend_class_constant *zend_declare_class_constant_ex(zend_class_entry *ce, zend_string *name, zval *value, int flags, zend_string *doc_comment)
4903 {
4904 	return zend_declare_typed_class_constant(ce, name, value, flags, doc_comment, (zend_type) ZEND_TYPE_INIT_NONE(0));
4905 }
4906 
zend_declare_class_constant(zend_class_entry * ce,const char * name,size_t name_length,zval * value)4907 ZEND_API void zend_declare_class_constant(zend_class_entry *ce, const char *name, size_t name_length, zval *value) /* {{{ */
4908 {
4909 	zend_string *key;
4910 
4911 	if (ce->type == ZEND_INTERNAL_CLASS) {
4912 		key = zend_string_init_interned(name, name_length, 1);
4913 	} else {
4914 		key = zend_string_init(name, name_length, 0);
4915 	}
4916 	zend_declare_class_constant_ex(ce, key, value, ZEND_ACC_PUBLIC, NULL);
4917 	zend_string_release(key);
4918 }
4919 /* }}} */
4920 
zend_declare_class_constant_null(zend_class_entry * ce,const char * name,size_t name_length)4921 ZEND_API void zend_declare_class_constant_null(zend_class_entry *ce, const char *name, size_t name_length) /* {{{ */
4922 {
4923 	zval constant;
4924 
4925 	ZVAL_NULL(&constant);
4926 	zend_declare_class_constant(ce, name, name_length, &constant);
4927 }
4928 /* }}} */
4929 
zend_declare_class_constant_long(zend_class_entry * ce,const char * name,size_t name_length,zend_long value)4930 ZEND_API void zend_declare_class_constant_long(zend_class_entry *ce, const char *name, size_t name_length, zend_long value) /* {{{ */
4931 {
4932 	zval constant;
4933 
4934 	ZVAL_LONG(&constant, value);
4935 	zend_declare_class_constant(ce, name, name_length, &constant);
4936 }
4937 /* }}} */
4938 
zend_declare_class_constant_bool(zend_class_entry * ce,const char * name,size_t name_length,bool value)4939 ZEND_API void zend_declare_class_constant_bool(zend_class_entry *ce, const char *name, size_t name_length, bool value) /* {{{ */
4940 {
4941 	zval constant;
4942 
4943 	ZVAL_BOOL(&constant, value);
4944 	zend_declare_class_constant(ce, name, name_length, &constant);
4945 }
4946 /* }}} */
4947 
zend_declare_class_constant_double(zend_class_entry * ce,const char * name,size_t name_length,double value)4948 ZEND_API void zend_declare_class_constant_double(zend_class_entry *ce, const char *name, size_t name_length, double value) /* {{{ */
4949 {
4950 	zval constant;
4951 
4952 	ZVAL_DOUBLE(&constant, value);
4953 	zend_declare_class_constant(ce, name, name_length, &constant);
4954 }
4955 /* }}} */
4956 
zend_declare_class_constant_stringl(zend_class_entry * ce,const char * name,size_t name_length,const char * value,size_t value_length)4957 ZEND_API void zend_declare_class_constant_stringl(zend_class_entry *ce, const char *name, size_t name_length, const char *value, size_t value_length) /* {{{ */
4958 {
4959 	zval constant;
4960 
4961 	ZVAL_NEW_STR(&constant, zend_string_init(value, value_length, ce->type & ZEND_INTERNAL_CLASS));
4962 	zend_declare_class_constant(ce, name, name_length, &constant);
4963 }
4964 /* }}} */
4965 
zend_declare_class_constant_string(zend_class_entry * ce,const char * name,size_t name_length,const char * value)4966 ZEND_API void zend_declare_class_constant_string(zend_class_entry *ce, const char *name, size_t name_length, const char *value) /* {{{ */
4967 {
4968 	zend_declare_class_constant_stringl(ce, name, name_length, value, strlen(value));
4969 }
4970 /* }}} */
4971 
zend_update_property_ex(zend_class_entry * scope,zend_object * object,zend_string * name,zval * value)4972 ZEND_API void zend_update_property_ex(zend_class_entry *scope, zend_object *object, zend_string *name, zval *value) /* {{{ */
4973 {
4974 	zend_class_entry *old_scope = EG(fake_scope);
4975 
4976 	EG(fake_scope) = scope;
4977 
4978 	object->handlers->write_property(object, name, value, NULL);
4979 
4980 	EG(fake_scope) = old_scope;
4981 }
4982 /* }}} */
4983 
zend_update_property(zend_class_entry * scope,zend_object * object,const char * name,size_t name_length,zval * value)4984 ZEND_API void zend_update_property(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, zval *value) /* {{{ */
4985 {
4986 	zend_string *property;
4987 	zend_class_entry *old_scope = EG(fake_scope);
4988 
4989 	EG(fake_scope) = scope;
4990 
4991 	property = zend_string_init(name, name_length, 0);
4992 	object->handlers->write_property(object, property, value, NULL);
4993 	zend_string_release_ex(property, 0);
4994 
4995 	EG(fake_scope) = old_scope;
4996 }
4997 /* }}} */
4998 
zend_update_property_null(zend_class_entry * scope,zend_object * object,const char * name,size_t name_length)4999 ZEND_API void zend_update_property_null(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length) /* {{{ */
5000 {
5001 	zval tmp;
5002 
5003 	ZVAL_NULL(&tmp);
5004 	zend_update_property(scope, object, name, name_length, &tmp);
5005 }
5006 /* }}} */
5007 
zend_unset_property(zend_class_entry * scope,zend_object * object,const char * name,size_t name_length)5008 ZEND_API void zend_unset_property(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length) /* {{{ */
5009 {
5010 	zend_string *property;
5011 	zend_class_entry *old_scope = EG(fake_scope);
5012 
5013 	EG(fake_scope) = scope;
5014 
5015 	property = zend_string_init(name, name_length, 0);
5016 	object->handlers->unset_property(object, property, 0);
5017 	zend_string_release_ex(property, 0);
5018 
5019 	EG(fake_scope) = old_scope;
5020 }
5021 /* }}} */
5022 
zend_update_property_bool(zend_class_entry * scope,zend_object * object,const char * name,size_t name_length,zend_long value)5023 ZEND_API void zend_update_property_bool(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, zend_long value) /* {{{ */
5024 {
5025 	zval tmp;
5026 
5027 	ZVAL_BOOL(&tmp, value);
5028 	zend_update_property(scope, object, name, name_length, &tmp);
5029 }
5030 /* }}} */
5031 
zend_update_property_long(zend_class_entry * scope,zend_object * object,const char * name,size_t name_length,zend_long value)5032 ZEND_API void zend_update_property_long(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, zend_long value) /* {{{ */
5033 {
5034 	zval tmp;
5035 
5036 	ZVAL_LONG(&tmp, value);
5037 	zend_update_property(scope, object, name, name_length, &tmp);
5038 }
5039 /* }}} */
5040 
zend_update_property_double(zend_class_entry * scope,zend_object * object,const char * name,size_t name_length,double value)5041 ZEND_API void zend_update_property_double(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, double value) /* {{{ */
5042 {
5043 	zval tmp;
5044 
5045 	ZVAL_DOUBLE(&tmp, value);
5046 	zend_update_property(scope, object, name, name_length, &tmp);
5047 }
5048 /* }}} */
5049 
zend_update_property_str(zend_class_entry * scope,zend_object * object,const char * name,size_t name_length,zend_string * value)5050 ZEND_API void zend_update_property_str(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, zend_string *value) /* {{{ */
5051 {
5052 	zval tmp;
5053 
5054 	ZVAL_STR(&tmp, value);
5055 	zend_update_property(scope, object, name, name_length, &tmp);
5056 }
5057 /* }}} */
5058 
zend_update_property_string(zend_class_entry * scope,zend_object * object,const char * name,size_t name_length,const char * value)5059 ZEND_API void zend_update_property_string(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, const char *value) /* {{{ */
5060 {
5061 	zval tmp;
5062 
5063 	ZVAL_STRING(&tmp, value);
5064 	Z_SET_REFCOUNT(tmp, 0);
5065 	zend_update_property(scope, object, name, name_length, &tmp);
5066 }
5067 /* }}} */
5068 
zend_update_property_stringl(zend_class_entry * scope,zend_object * object,const char * name,size_t name_length,const char * value,size_t value_len)5069 ZEND_API void zend_update_property_stringl(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, const char *value, size_t value_len) /* {{{ */
5070 {
5071 	zval tmp;
5072 
5073 	ZVAL_STRINGL(&tmp, value, value_len);
5074 	Z_SET_REFCOUNT(tmp, 0);
5075 	zend_update_property(scope, object, name, name_length, &tmp);
5076 }
5077 /* }}} */
5078 
zend_update_static_property_ex(zend_class_entry * scope,zend_string * name,zval * value)5079 ZEND_API zend_result zend_update_static_property_ex(zend_class_entry *scope, zend_string *name, zval *value) /* {{{ */
5080 {
5081 	zval *property, tmp;
5082 	zend_property_info *prop_info;
5083 	zend_class_entry *old_scope = EG(fake_scope);
5084 
5085 	if (UNEXPECTED(!(scope->ce_flags & ZEND_ACC_CONSTANTS_UPDATED))) {
5086 		if (UNEXPECTED(zend_update_class_constants(scope) != SUCCESS)) {
5087 			return FAILURE;
5088 		}
5089 	}
5090 
5091 	EG(fake_scope) = scope;
5092 	property = zend_std_get_static_property_with_info(scope, name, BP_VAR_W, &prop_info);
5093 	EG(fake_scope) = old_scope;
5094 
5095 	if (!property) {
5096 		return FAILURE;
5097 	}
5098 
5099 	ZEND_ASSERT(!Z_ISREF_P(value));
5100 	Z_TRY_ADDREF_P(value);
5101 	if (ZEND_TYPE_IS_SET(prop_info->type)) {
5102 		ZVAL_COPY_VALUE(&tmp, value);
5103 		if (!zend_verify_property_type(prop_info, &tmp, /* strict */ 0)) {
5104 			Z_TRY_DELREF_P(value);
5105 			return FAILURE;
5106 		}
5107 		value = &tmp;
5108 	}
5109 
5110 	zend_assign_to_variable(property, value, IS_TMP_VAR, /* strict */ 0);
5111 	return SUCCESS;
5112 }
5113 /* }}} */
5114 
zend_update_static_property(zend_class_entry * scope,const char * name,size_t name_length,zval * value)5115 ZEND_API zend_result zend_update_static_property(zend_class_entry *scope, const char *name, size_t name_length, zval *value) /* {{{ */
5116 {
5117 	zend_string *key = zend_string_init(name, name_length, 0);
5118 	zend_result retval = zend_update_static_property_ex(scope, key, value);
5119 	zend_string_efree(key);
5120 	return retval;
5121 }
5122 /* }}} */
5123 
zend_update_static_property_null(zend_class_entry * scope,const char * name,size_t name_length)5124 ZEND_API zend_result zend_update_static_property_null(zend_class_entry *scope, const char *name, size_t name_length) /* {{{ */
5125 {
5126 	zval tmp;
5127 
5128 	ZVAL_NULL(&tmp);
5129 	return zend_update_static_property(scope, name, name_length, &tmp);
5130 }
5131 /* }}} */
5132 
zend_update_static_property_bool(zend_class_entry * scope,const char * name,size_t name_length,zend_long value)5133 ZEND_API zend_result zend_update_static_property_bool(zend_class_entry *scope, const char *name, size_t name_length, zend_long value) /* {{{ */
5134 {
5135 	zval tmp;
5136 
5137 	ZVAL_BOOL(&tmp, value);
5138 	return zend_update_static_property(scope, name, name_length, &tmp);
5139 }
5140 /* }}} */
5141 
zend_update_static_property_long(zend_class_entry * scope,const char * name,size_t name_length,zend_long value)5142 ZEND_API zend_result zend_update_static_property_long(zend_class_entry *scope, const char *name, size_t name_length, zend_long value) /* {{{ */
5143 {
5144 	zval tmp;
5145 
5146 	ZVAL_LONG(&tmp, value);
5147 	return zend_update_static_property(scope, name, name_length, &tmp);
5148 }
5149 /* }}} */
5150 
zend_update_static_property_double(zend_class_entry * scope,const char * name,size_t name_length,double value)5151 ZEND_API zend_result zend_update_static_property_double(zend_class_entry *scope, const char *name, size_t name_length, double value) /* {{{ */
5152 {
5153 	zval tmp;
5154 
5155 	ZVAL_DOUBLE(&tmp, value);
5156 	return zend_update_static_property(scope, name, name_length, &tmp);
5157 }
5158 /* }}} */
5159 
zend_update_static_property_string(zend_class_entry * scope,const char * name,size_t name_length,const char * value)5160 ZEND_API zend_result zend_update_static_property_string(zend_class_entry *scope, const char *name, size_t name_length, const char *value) /* {{{ */
5161 {
5162 	zval tmp;
5163 
5164 	ZVAL_STRING(&tmp, value);
5165 	Z_SET_REFCOUNT(tmp, 0);
5166 	return zend_update_static_property(scope, name, name_length, &tmp);
5167 }
5168 /* }}} */
5169 
zend_update_static_property_stringl(zend_class_entry * scope,const char * name,size_t name_length,const char * value,size_t value_len)5170 ZEND_API zend_result zend_update_static_property_stringl(zend_class_entry *scope, const char *name, size_t name_length, const char *value, size_t value_len) /* {{{ */
5171 {
5172 	zval tmp;
5173 
5174 	ZVAL_STRINGL(&tmp, value, value_len);
5175 	Z_SET_REFCOUNT(tmp, 0);
5176 	return zend_update_static_property(scope, name, name_length, &tmp);
5177 }
5178 /* }}} */
5179 
zend_read_property_ex(zend_class_entry * scope,zend_object * object,zend_string * name,bool silent,zval * rv)5180 ZEND_API zval *zend_read_property_ex(zend_class_entry *scope, zend_object *object, zend_string *name, bool silent, zval *rv) /* {{{ */
5181 {
5182 	zval *value;
5183 	zend_class_entry *old_scope = EG(fake_scope);
5184 
5185 	EG(fake_scope) = scope;
5186 
5187 	value = object->handlers->read_property(object, name, silent?BP_VAR_IS:BP_VAR_R, NULL, rv);
5188 
5189 	EG(fake_scope) = old_scope;
5190 	return value;
5191 }
5192 /* }}} */
5193 
zend_read_property(zend_class_entry * scope,zend_object * object,const char * name,size_t name_length,bool silent,zval * rv)5194 ZEND_API zval *zend_read_property(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, bool silent, zval *rv) /* {{{ */
5195 {
5196 	zval *value;
5197 	zend_string *str;
5198 
5199 	str = zend_string_init(name, name_length, 0);
5200 	value = zend_read_property_ex(scope, object, str, silent, rv);
5201 	zend_string_release_ex(str, 0);
5202 	return value;
5203 }
5204 /* }}} */
5205 
zend_read_static_property_ex(zend_class_entry * scope,zend_string * name,bool silent)5206 ZEND_API zval *zend_read_static_property_ex(zend_class_entry *scope, zend_string *name, bool silent) /* {{{ */
5207 {
5208 	zval *property;
5209 	zend_class_entry *old_scope = EG(fake_scope);
5210 
5211 	EG(fake_scope) = scope;
5212 	property = zend_std_get_static_property(scope, name, silent ? BP_VAR_IS : BP_VAR_R);
5213 	EG(fake_scope) = old_scope;
5214 
5215 	return property;
5216 }
5217 /* }}} */
5218 
zend_read_static_property(zend_class_entry * scope,const char * name,size_t name_length,bool silent)5219 ZEND_API zval *zend_read_static_property(zend_class_entry *scope, const char *name, size_t name_length, bool silent) /* {{{ */
5220 {
5221 	zend_string *key = zend_string_init(name, name_length, 0);
5222 	zval *property = zend_read_static_property_ex(scope, key, silent);
5223 	zend_string_efree(key);
5224 	return property;
5225 }
5226 /* }}} */
5227 
zend_save_error_handling(zend_error_handling * current)5228 ZEND_API void zend_save_error_handling(zend_error_handling *current) /* {{{ */
5229 {
5230 	current->handling = EG(error_handling);
5231 	current->exception = EG(exception_class);
5232 }
5233 /* }}} */
5234 
zend_replace_error_handling(zend_error_handling_t error_handling,zend_class_entry * exception_class,zend_error_handling * current)5235 ZEND_API void zend_replace_error_handling(zend_error_handling_t error_handling, zend_class_entry *exception_class, zend_error_handling *current) /* {{{ */
5236 {
5237 	if (current) {
5238 		zend_save_error_handling(current);
5239 	}
5240 	ZEND_ASSERT(error_handling == EH_THROW || exception_class == NULL);
5241 	EG(error_handling) = error_handling;
5242 	EG(exception_class) = exception_class;
5243 }
5244 /* }}} */
5245 
zend_restore_error_handling(zend_error_handling * saved)5246 ZEND_API void zend_restore_error_handling(zend_error_handling *saved) /* {{{ */
5247 {
5248 	EG(error_handling) = saved->handling;
5249 	EG(exception_class) = saved->exception;
5250 }
5251 /* }}} */
5252 
zend_get_object_type_case(const zend_class_entry * ce,bool upper_case)5253 ZEND_API ZEND_COLD const char *zend_get_object_type_case(const zend_class_entry *ce, bool upper_case) /* {{{ */
5254 {
5255 	if (ce->ce_flags & ZEND_ACC_TRAIT) {
5256 		return upper_case ? "Trait" : "trait";
5257 	} else if (ce->ce_flags & ZEND_ACC_INTERFACE) {
5258 		return upper_case ? "Interface" : "interface";
5259 	} else if (ce->ce_flags & ZEND_ACC_ENUM) {
5260 		return upper_case ? "Enum" : "enum";
5261 	} else {
5262 		return upper_case ? "Class" : "class";
5263 	}
5264 }
5265 /* }}} */
5266 
zend_is_iterable(const zval * iterable)5267 ZEND_API bool zend_is_iterable(const zval *iterable) /* {{{ */
5268 {
5269 	switch (Z_TYPE_P(iterable)) {
5270 		case IS_ARRAY:
5271 			return 1;
5272 		case IS_OBJECT:
5273 			return zend_class_implements_interface(Z_OBJCE_P(iterable), zend_ce_traversable);
5274 		default:
5275 			return 0;
5276 	}
5277 }
5278 /* }}} */
5279 
zend_is_countable(const zval * countable)5280 ZEND_API bool zend_is_countable(const zval *countable) /* {{{ */
5281 {
5282 	switch (Z_TYPE_P(countable)) {
5283 		case IS_ARRAY:
5284 			return 1;
5285 		case IS_OBJECT:
5286 			if (Z_OBJ_HT_P(countable)->count_elements) {
5287 				return 1;
5288 			}
5289 
5290 			return zend_class_implements_interface(Z_OBJCE_P(countable), zend_ce_countable);
5291 		default:
5292 			return 0;
5293 	}
5294 }
5295 /* }}} */
5296 
get_default_via_ast(zval * default_value_zval,const char * default_value)5297 static zend_result get_default_via_ast(zval *default_value_zval, const char *default_value) {
5298 	zend_ast *ast;
5299 	zend_arena *ast_arena;
5300 
5301 	zend_string *code = zend_string_concat3(
5302 		"<?php ", sizeof("<?php ") - 1, default_value, strlen(default_value), ";", 1);
5303 
5304 	ast = zend_compile_string_to_ast(code, &ast_arena, ZSTR_EMPTY_ALLOC());
5305 	zend_string_release(code);
5306 
5307 	if (!ast) {
5308 		return FAILURE;
5309 	}
5310 
5311 	zend_ast_list *statement_list = zend_ast_get_list(ast);
5312 	zend_ast **const_expr_ast_ptr = &statement_list->child[0];
5313 
5314 	zend_arena *original_ast_arena = CG(ast_arena);
5315 	uint32_t original_compiler_options = CG(compiler_options);
5316 	zend_file_context original_file_context;
5317 	CG(ast_arena) = ast_arena;
5318 	/* Disable constant substitution, to make getDefaultValueConstant() work. */
5319 	CG(compiler_options) |= ZEND_COMPILE_NO_CONSTANT_SUBSTITUTION | ZEND_COMPILE_NO_PERSISTENT_CONSTANT_SUBSTITUTION;
5320 	zend_file_context_begin(&original_file_context);
5321 	zend_const_expr_to_zval(default_value_zval, const_expr_ast_ptr, /* allow_dynamic */ true);
5322 	CG(ast_arena) = original_ast_arena;
5323 	CG(compiler_options) = original_compiler_options;
5324 	zend_file_context_end(&original_file_context);
5325 
5326 	zend_ast_destroy(ast);
5327 	zend_arena_destroy(ast_arena);
5328 
5329 	return SUCCESS;
5330 }
5331 
try_parse_string(const char * str,size_t len,char quote)5332 static zend_string *try_parse_string(const char *str, size_t len, char quote) {
5333 	if (len == 0) {
5334 		return ZSTR_EMPTY_ALLOC();
5335 	}
5336 
5337 	for (size_t i = 0; i < len; i++) {
5338 		if (str[i] == '\\' || str[i] == quote) {
5339 			return NULL;
5340 		}
5341 	}
5342 	return zend_string_init(str, len, 0);
5343 }
5344 
zend_get_default_from_internal_arg_info(zval * default_value_zval,zend_internal_arg_info * arg_info)5345 ZEND_API zend_result zend_get_default_from_internal_arg_info(
5346 		zval *default_value_zval, zend_internal_arg_info *arg_info)
5347 {
5348 	const char *default_value = arg_info->default_value;
5349 	if (!default_value) {
5350 		return FAILURE;
5351 	}
5352 
5353 	/* Avoid going through the full AST machinery for some simple and common cases. */
5354 	size_t default_value_len = strlen(default_value);
5355 	zend_ulong lval;
5356 	if (default_value_len == sizeof("null")-1
5357 			&& !memcmp(default_value, "null", sizeof("null")-1)) {
5358 		ZVAL_NULL(default_value_zval);
5359 		return SUCCESS;
5360 	} else if (default_value_len == sizeof("true")-1
5361 			&& !memcmp(default_value, "true", sizeof("true")-1)) {
5362 		ZVAL_TRUE(default_value_zval);
5363 		return SUCCESS;
5364 	} else if (default_value_len == sizeof("false")-1
5365 			&& !memcmp(default_value, "false", sizeof("false")-1)) {
5366 		ZVAL_FALSE(default_value_zval);
5367 		return SUCCESS;
5368 	} else if (default_value_len >= 2
5369 			&& (default_value[0] == '\'' || default_value[0] == '"')
5370 			&& default_value[default_value_len - 1] == default_value[0]) {
5371 		zend_string *str = try_parse_string(
5372 			default_value + 1, default_value_len - 2, default_value[0]);
5373 		if (str) {
5374 			ZVAL_STR(default_value_zval, str);
5375 			return SUCCESS;
5376 		}
5377 	} else if (default_value_len == sizeof("[]")-1
5378 			&& !memcmp(default_value, "[]", sizeof("[]")-1)) {
5379 		ZVAL_EMPTY_ARRAY(default_value_zval);
5380 		return SUCCESS;
5381 	} else if (ZEND_HANDLE_NUMERIC_STR(default_value, default_value_len, lval)) {
5382 		ZVAL_LONG(default_value_zval, lval);
5383 		return SUCCESS;
5384 	}
5385 
5386 #if 0
5387 	fprintf(stderr, "Evaluating %s via AST\n", default_value);
5388 #endif
5389 	return get_default_via_ast(default_value_zval, default_value);
5390 }
5391