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cd751f98cb
Add recursion protection when emitting deprecation warnings for class constants, since the deprecation message can come from an attribute that is using the same constant for the message, or otherwise result in recursion. But, internal constants are persisted, and thus cannot have recursion protection. Otherwise, if a user error handler triggers bailout before the recursion flag is removed then a subsequent request (e.g. with `--repeat 2`) would start with that flag already applied. Internal constants can presumably be trusted not to use deprecation messages that come from recursive attributes. Fixes GH-18463 Fixes GH-17711
120 lines
7.1 KiB
C
120 lines
7.1 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Andi Gutmans <andi@php.net> |
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| Zeev Suraski <zeev@php.net> |
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+----------------------------------------------------------------------+
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*/
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#ifndef ZEND_CONSTANTS_H
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#define ZEND_CONSTANTS_H
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#include "zend_globals.h"
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#define CONST_CS 0 /* No longer used -- always case sensitive */
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#define CONST_PERSISTENT (1<<0) /* Persistent */
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#define CONST_NO_FILE_CACHE (1<<1) /* Can't be saved in file cache */
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#define CONST_DEPRECATED (1<<2) /* Deprecated */
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#define CONST_OWNED (1<<3) /* constant should be destroyed together with class */
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#define CONST_RECURSIVE (1<<4) /* Recursion protection for constant evaluation */
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#define CONST_IS_RECURSIVE(c) (Z_CONSTANT_FLAGS((c)->value) & CONST_RECURSIVE)
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#define CONST_PROTECT_RECURSION(c) \
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do { \
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Z_CONSTANT_FLAGS((c)->value) |= CONST_RECURSIVE; \
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} while (0)
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#define CONST_UNPROTECT_RECURSION(c) \
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do { \
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Z_CONSTANT_FLAGS((c)->value) &= ~CONST_RECURSIVE; \
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} while (0)
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#define PHP_USER_CONSTANT 0x7fffff /* a constant defined in user space */
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typedef struct _zend_constant {
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zval value;
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zend_string *name;
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zend_string *filename;
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HashTable *attributes;
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} zend_constant;
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#define ZEND_CONSTANT_FLAGS(c) \
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(Z_CONSTANT_FLAGS((c)->value) & 0xff)
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#define ZEND_CONSTANT_MODULE_NUMBER(c) \
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(Z_CONSTANT_FLAGS((c)->value) >> 8)
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#define ZEND_CONSTANT_SET_FLAGS(c, _flags, _module_number) do { \
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Z_CONSTANT_FLAGS((c)->value) = \
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((_flags) & 0xff) | ((_module_number) << 8); \
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} while (0)
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#define REGISTER_NULL_CONSTANT(name, flags) zend_register_null_constant((name), sizeof(name)-1, (flags), module_number)
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#define REGISTER_BOOL_CONSTANT(name, bval, flags) zend_register_bool_constant((name), sizeof(name)-1, (bval), (flags), module_number)
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#define REGISTER_LONG_CONSTANT(name, lval, flags) zend_register_long_constant((name), sizeof(name)-1, (lval), (flags), module_number)
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#define REGISTER_DOUBLE_CONSTANT(name, dval, flags) zend_register_double_constant((name), sizeof(name)-1, (dval), (flags), module_number)
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#define REGISTER_STRING_CONSTANT(name, str, flags) zend_register_string_constant((name), sizeof(name)-1, (str), (flags), module_number)
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#define REGISTER_STRINGL_CONSTANT(name, str, len, flags) zend_register_stringl_constant((name), sizeof(name)-1, (str), (len), (flags), module_number)
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#define REGISTER_NS_NULL_CONSTANT(ns, name, flags) zend_register_null_constant(ZEND_NS_NAME(ns, name), sizeof(ZEND_NS_NAME(ns, name))-1, (flags), module_number)
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#define REGISTER_NS_BOOL_CONSTANT(ns, name, bval, flags) zend_register_bool_constant(ZEND_NS_NAME(ns, name), sizeof(ZEND_NS_NAME(ns, name))-1, (bval), (flags), module_number)
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#define REGISTER_NS_LONG_CONSTANT(ns, name, lval, flags) zend_register_long_constant(ZEND_NS_NAME(ns, name), sizeof(ZEND_NS_NAME(ns, name))-1, (lval), (flags), module_number)
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#define REGISTER_NS_DOUBLE_CONSTANT(ns, name, dval, flags) zend_register_double_constant(ZEND_NS_NAME(ns, name), sizeof(ZEND_NS_NAME(ns, name))-1, (dval), (flags), module_number)
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#define REGISTER_NS_STRING_CONSTANT(ns, name, str, flags) zend_register_string_constant(ZEND_NS_NAME(ns, name), sizeof(ZEND_NS_NAME(ns, name))-1, (str), (flags), module_number)
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#define REGISTER_NS_STRINGL_CONSTANT(ns, name, str, len, flags) zend_register_stringl_constant(ZEND_NS_NAME(ns, name), sizeof(ZEND_NS_NAME(ns, name))-1, (str), (len), (flags), module_number)
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#define REGISTER_MAIN_NULL_CONSTANT(name, flags) zend_register_null_constant((name), sizeof(name)-1, (flags), 0)
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#define REGISTER_MAIN_BOOL_CONSTANT(name, bval, flags) zend_register_bool_constant((name), sizeof(name)-1, (bval), (flags), 0)
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#define REGISTER_MAIN_LONG_CONSTANT(name, lval, flags) zend_register_long_constant((name), sizeof(name)-1, (lval), (flags), 0)
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#define REGISTER_MAIN_DOUBLE_CONSTANT(name, dval, flags) zend_register_double_constant((name), sizeof(name)-1, (dval), (flags), 0)
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#define REGISTER_MAIN_STRING_CONSTANT(name, str, flags) zend_register_string_constant((name), sizeof(name)-1, (str), (flags), 0)
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#define REGISTER_MAIN_STRINGL_CONSTANT(name, str, len, flags) zend_register_stringl_constant((name), sizeof(name)-1, (str), (len), (flags), 0)
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BEGIN_EXTERN_C()
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void clean_module_constants(int module_number);
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void free_zend_constant(zval *zv);
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void zend_startup_constants(void);
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void zend_register_standard_constants(void);
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ZEND_API bool zend_verify_const_access(zend_class_constant *c, zend_class_entry *ce);
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ZEND_API zval *zend_get_constant(zend_string *name);
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ZEND_API zend_constant *zend_get_constant_ptr(zend_string *name);
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ZEND_API zval *zend_get_constant_str(const char *name, size_t name_len);
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ZEND_API zval *zend_get_constant_ex(zend_string *name, zend_class_entry *scope, uint32_t flags);
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ZEND_API zval *zend_get_class_constant_ex(zend_string *class_name, zend_string *constant_name, zend_class_entry *scope, uint32_t flags);
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ZEND_API void zend_register_bool_constant(const char *name, size_t name_len, bool bval, int flags, int module_number);
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ZEND_API void zend_register_null_constant(const char *name, size_t name_len, int flags, int module_number);
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ZEND_API void zend_register_long_constant(const char *name, size_t name_len, zend_long lval, int flags, int module_number);
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ZEND_API void zend_register_double_constant(const char *name, size_t name_len, double dval, int flags, int module_number);
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ZEND_API void zend_register_string_constant(const char *name, size_t name_len, const char *strval, int flags, int module_number);
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ZEND_API void zend_register_stringl_constant(const char *name, size_t name_len, const char *strval, size_t strlen, int flags, int module_number);
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ZEND_API zend_result zend_register_constant(zend_constant *c);
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void zend_constant_add_attributes(zend_constant *c, HashTable *attributes);
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#ifdef ZTS
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void zend_copy_constants(HashTable *target, HashTable *source);
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#endif
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ZEND_API zend_constant *_zend_get_special_const(const char *name, size_t name_len);
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static zend_always_inline zend_constant *zend_get_special_const(
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const char *name, size_t name_len) {
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if (name_len == 4 || name_len == 5) {
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return _zend_get_special_const(name, name_len);
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}
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return NULL;
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}
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END_EXTERN_C()
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#define ZEND_CONSTANT_DTOR free_zend_constant
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#endif
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