/Zend/zend_execute_API.c
C | 1733 lines | 1378 code | 215 blank | 140 comment | 313 complexity | 5c7241075d8bda2a9b93ed1dac684196 MD5 | raw file
Possible License(s): MPL-2.0-no-copyleft-exception, LGPL-2.1, BSD-3-Clause
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- /*
- +----------------------------------------------------------------------+
- | Zend Engine |
- +----------------------------------------------------------------------+
- | Copyright (c) 1998-2011 Zend Technologies Ltd. (http://www.zend.com) |
- +----------------------------------------------------------------------+
- | This source file is subject to version 2.00 of the Zend license, |
- | that is bundled with this package in the file LICENSE, and is |
- | available through the world-wide-web at the following url: |
- | http://www.zend.com/license/2_00.txt. |
- | If you did not receive a copy of the Zend license and are unable to |
- | obtain it through the world-wide-web, please send a note to |
- | license@zend.com so we can mail you a copy immediately. |
- +----------------------------------------------------------------------+
- | Authors: Andi Gutmans <andi@zend.com> |
- | Zeev Suraski <zeev@zend.com> |
- +----------------------------------------------------------------------+
- */
- /* $Id: zend_execute_API.c 306939 2011-01-01 02:19:59Z felipe $ */
- #include <stdio.h>
- #include <signal.h>
- #include "zend.h"
- #include "zend_compile.h"
- #include "zend_execute.h"
- #include "zend_API.h"
- #include "zend_ptr_stack.h"
- #include "zend_constants.h"
- #include "zend_extensions.h"
- #include "zend_exceptions.h"
- #include "zend_closures.h"
- #include "zend_vm.h"
- #include "zend_float.h"
- #ifdef HAVE_SYS_TIME_H
- #include <sys/time.h>
- #endif
- ZEND_API void (*zend_execute)(zend_op_array *op_array TSRMLS_DC);
- ZEND_API void (*zend_execute_internal)(zend_execute_data *execute_data_ptr, int return_value_used TSRMLS_DC);
- /* true globals */
- ZEND_API const zend_fcall_info empty_fcall_info = { 0, NULL, NULL, NULL, NULL, 0, NULL, NULL, 0 };
- ZEND_API const zend_fcall_info_cache empty_fcall_info_cache = { 0, NULL, NULL, NULL, NULL };
- #ifdef ZEND_WIN32
- #include <process.h>
- static WNDCLASS wc;
- static HWND timeout_window;
- static HANDLE timeout_thread_event;
- static HANDLE timeout_thread_handle;
- static DWORD timeout_thread_id;
- static int timeout_thread_initialized=0;
- #endif
- #if 0&&ZEND_DEBUG
- static void (*original_sigsegv_handler)(int);
- static void zend_handle_sigsegv(int dummy) /* {{{ */
- {
- fflush(stdout);
- fflush(stderr);
- if (original_sigsegv_handler == zend_handle_sigsegv) {
- signal(SIGSEGV, original_sigsegv_handler);
- } else {
- signal(SIGSEGV, SIG_DFL);
- }
- {
- TSRMLS_FETCH();
- fprintf(stderr, "SIGSEGV caught on opcode %d on opline %d of %s() at %s:%d\n\n",
- active_opline->opcode,
- active_opline-EG(active_op_array)->opcodes,
- get_active_function_name(TSRMLS_C),
- zend_get_executed_filename(TSRMLS_C),
- zend_get_executed_lineno(TSRMLS_C));
- /* See http://support.microsoft.com/kb/190351 */
- #ifdef PHP_WIN32
- fflush(stderr);
- #endif
- }
- if (original_sigsegv_handler!=zend_handle_sigsegv) {
- original_sigsegv_handler(dummy);
- }
- }
- /* }}} */
- #endif
- static void zend_extension_activator(zend_extension *extension TSRMLS_DC) /* {{{ */
- {
- if (extension->activate) {
- extension->activate();
- }
- }
- /* }}} */
- static void zend_extension_deactivator(zend_extension *extension TSRMLS_DC) /* {{{ */
- {
- if (extension->deactivate) {
- extension->deactivate();
- }
- }
- /* }}} */
- static int clean_non_persistent_function(zend_function *function TSRMLS_DC) /* {{{ */
- {
- return (function->type == ZEND_INTERNAL_FUNCTION) ? ZEND_HASH_APPLY_STOP : ZEND_HASH_APPLY_REMOVE;
- }
- /* }}} */
- static int clean_non_persistent_function_full(zend_function *function TSRMLS_DC) /* {{{ */
- {
- return (function->type != ZEND_INTERNAL_FUNCTION);
- }
- /* }}} */
- static int clean_non_persistent_class(zend_class_entry **ce TSRMLS_DC) /* {{{ */
- {
- return ((*ce)->type == ZEND_INTERNAL_CLASS) ? ZEND_HASH_APPLY_STOP : ZEND_HASH_APPLY_REMOVE;
- }
- /* }}} */
- static int clean_non_persistent_class_full(zend_class_entry **ce TSRMLS_DC) /* {{{ */
- {
- return ((*ce)->type != ZEND_INTERNAL_CLASS);
- }
- /* }}} */
- void init_executor(TSRMLS_D) /* {{{ */
- {
- zend_init_fpu(TSRMLS_C);
- INIT_ZVAL(EG(uninitialized_zval));
- /* trick to make uninitialized_zval never be modified, passed by ref, etc. */
- Z_ADDREF(EG(uninitialized_zval));
- INIT_ZVAL(EG(error_zval));
- EG(uninitialized_zval_ptr)=&EG(uninitialized_zval);
- EG(error_zval_ptr)=&EG(error_zval);
- zend_ptr_stack_init(&EG(arg_types_stack));
- /* destroys stack frame, therefore makes core dumps worthless */
- #if 0&&ZEND_DEBUG
- original_sigsegv_handler = signal(SIGSEGV, zend_handle_sigsegv);
- #endif
- EG(return_value_ptr_ptr) = NULL;
- EG(symtable_cache_ptr) = EG(symtable_cache) - 1;
- EG(symtable_cache_limit) = EG(symtable_cache) + SYMTABLE_CACHE_SIZE - 1;
- EG(no_extensions) = 0;
- EG(function_table) = CG(function_table);
- EG(class_table) = CG(class_table);
- EG(in_execution) = 0;
- EG(in_autoload) = NULL;
- EG(autoload_func) = NULL;
- EG(error_handling) = EH_NORMAL;
- zend_vm_stack_init(TSRMLS_C);
- zend_vm_stack_push((void *) NULL TSRMLS_CC);
- zend_hash_init(&EG(symbol_table), 50, NULL, ZVAL_PTR_DTOR, 0);
- {
- zval *globals;
- ALLOC_ZVAL(globals);
- Z_SET_REFCOUNT_P(globals, 1);
- Z_SET_ISREF_P(globals);
- Z_TYPE_P(globals) = IS_ARRAY;
- Z_ARRVAL_P(globals) = &EG(symbol_table);
- zend_hash_update(&EG(symbol_table), "GLOBALS", sizeof("GLOBALS"), &globals, sizeof(zval *), NULL);
- }
- EG(active_symbol_table) = &EG(symbol_table);
- zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_activator TSRMLS_CC);
- EG(opline_ptr) = NULL;
- zend_hash_init(&EG(included_files), 5, NULL, NULL, 0);
- EG(ticks_count) = 0;
- EG(user_error_handler) = NULL;
- EG(current_execute_data) = NULL;
- zend_stack_init(&EG(user_error_handlers_error_reporting));
- zend_ptr_stack_init(&EG(user_error_handlers));
- zend_ptr_stack_init(&EG(user_exception_handlers));
- zend_objects_store_init(&EG(objects_store), 1024);
- EG(full_tables_cleanup) = 0;
- #ifdef ZEND_WIN32
- EG(timed_out) = 0;
- #endif
- EG(exception) = NULL;
- EG(prev_exception) = NULL;
- EG(scope) = NULL;
- EG(called_scope) = NULL;
- EG(This) = NULL;
- EG(active_op_array) = NULL;
- EG(active) = 1;
- }
- /* }}} */
- static int zval_call_destructor(zval **zv TSRMLS_DC) /* {{{ */
- {
- if (Z_TYPE_PP(zv) == IS_OBJECT && Z_REFCOUNT_PP(zv) == 1) {
- return ZEND_HASH_APPLY_REMOVE;
- } else {
- return ZEND_HASH_APPLY_KEEP;
- }
- }
- /* }}} */
- void shutdown_destructors(TSRMLS_D) /* {{{ */
- {
- zend_try {
- int symbols;
- do {
- symbols = zend_hash_num_elements(&EG(symbol_table));
- zend_hash_reverse_apply(&EG(symbol_table), (apply_func_t) zval_call_destructor TSRMLS_CC);
- } while (symbols != zend_hash_num_elements(&EG(symbol_table)));
- zend_objects_store_call_destructors(&EG(objects_store) TSRMLS_CC);
- } zend_catch {
- /* if we couldn't destruct cleanly, mark all objects as destructed anyway */
- zend_objects_store_mark_destructed(&EG(objects_store) TSRMLS_CC);
- } zend_end_try();
- }
- /* }}} */
- void shutdown_executor(TSRMLS_D) /* {{{ */
- {
- zend_try {
- /* Removed because this can not be safely done, e.g. in this situation:
- Object 1 creates object 2
- Object 3 holds reference to object 2.
- Now when 1 and 2 are destroyed, 3 can still access 2 in its destructor, with
- very problematic results */
- /* zend_objects_store_call_destructors(&EG(objects_store) TSRMLS_CC); */
- /* Moved after symbol table cleaners, because some of the cleaners can call
- destructors, which would use EG(symtable_cache_ptr) and thus leave leaks */
- /* while (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
- zend_hash_destroy(*EG(symtable_cache_ptr));
- efree(*EG(symtable_cache_ptr));
- EG(symtable_cache_ptr)--;
- }
- */
- zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_deactivator TSRMLS_CC);
- zend_hash_graceful_reverse_destroy(&EG(symbol_table));
- } zend_end_try();
- zend_try {
- zval *zeh;
- /* remove error handlers before destroying classes and functions,
- * so that if handler used some class, crash would not happen */
- if (EG(user_error_handler)) {
- zeh = EG(user_error_handler);
- EG(user_error_handler) = NULL;
- zval_dtor(zeh);
- FREE_ZVAL(zeh);
- }
- if (EG(user_exception_handler)) {
- zeh = EG(user_exception_handler);
- EG(user_exception_handler) = NULL;
- zval_dtor(zeh);
- FREE_ZVAL(zeh);
- }
- zend_stack_destroy(&EG(user_error_handlers_error_reporting));
- zend_stack_init(&EG(user_error_handlers_error_reporting));
- zend_ptr_stack_clean(&EG(user_error_handlers), ZVAL_DESTRUCTOR, 1);
- zend_ptr_stack_clean(&EG(user_exception_handlers), ZVAL_DESTRUCTOR, 1);
- } zend_end_try();
- zend_try {
- /* Cleanup static data for functions and arrays.
- * We need a separate cleanup stage because of the following problem:
- * Suppose we destroy class X, which destroys the class's function table,
- * and in the function table we have function foo() that has static $bar.
- * Now if an object of class X is assigned to $bar, its destructor will be
- * called and will fail since X's function table is in mid-destruction.
- * So we want first of all to clean up all data and then move to tables destruction.
- * Note that only run-time accessed data need to be cleaned up, pre-defined data can
- * not contain objects and thus are not probelmatic */
- if (EG(full_tables_cleanup)) {
- zend_hash_apply(EG(function_table), (apply_func_t) zend_cleanup_function_data_full TSRMLS_CC);
- } else {
- zend_hash_reverse_apply(EG(function_table), (apply_func_t) zend_cleanup_function_data TSRMLS_CC);
- }
- zend_hash_apply(EG(class_table), (apply_func_t) zend_cleanup_class_data TSRMLS_CC);
- zend_vm_stack_destroy(TSRMLS_C);
- zend_objects_store_free_object_storage(&EG(objects_store) TSRMLS_CC);
- /* Destroy all op arrays */
- if (EG(full_tables_cleanup)) {
- zend_hash_apply(EG(function_table), (apply_func_t) clean_non_persistent_function_full TSRMLS_CC);
- zend_hash_apply(EG(class_table), (apply_func_t) clean_non_persistent_class_full TSRMLS_CC);
- } else {
- zend_hash_reverse_apply(EG(function_table), (apply_func_t) clean_non_persistent_function TSRMLS_CC);
- zend_hash_reverse_apply(EG(class_table), (apply_func_t) clean_non_persistent_class TSRMLS_CC);
- }
- while (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
- zend_hash_destroy(*EG(symtable_cache_ptr));
- FREE_HASHTABLE(*EG(symtable_cache_ptr));
- EG(symtable_cache_ptr)--;
- }
- } zend_end_try();
- zend_try {
- clean_non_persistent_constants(TSRMLS_C);
- } zend_end_try();
- zend_try {
- #if 0&&ZEND_DEBUG
- signal(SIGSEGV, original_sigsegv_handler);
- #endif
- zend_hash_destroy(&EG(included_files));
- zend_ptr_stack_destroy(&EG(arg_types_stack));
- zend_stack_destroy(&EG(user_error_handlers_error_reporting));
- zend_ptr_stack_destroy(&EG(user_error_handlers));
- zend_ptr_stack_destroy(&EG(user_exception_handlers));
- zend_objects_store_destroy(&EG(objects_store));
- if (EG(in_autoload)) {
- zend_hash_destroy(EG(in_autoload));
- FREE_HASHTABLE(EG(in_autoload));
- }
- } zend_end_try();
- zend_shutdown_fpu(TSRMLS_C);
- EG(active) = 0;
- }
- /* }}} */
- /* return class name and "::" or "". */
- ZEND_API char *get_active_class_name(char **space TSRMLS_DC) /* {{{ */
- {
- if (!zend_is_executing(TSRMLS_C)) {
- if (space) {
- *space = "";
- }
- return "";
- }
- switch (EG(current_execute_data)->function_state.function->type) {
- case ZEND_USER_FUNCTION:
- case ZEND_INTERNAL_FUNCTION:
- {
- zend_class_entry *ce = EG(current_execute_data)->function_state.function->common.scope;
- if (space) {
- *space = ce ? "::" : "";
- }
- return ce ? ce->name : "";
- }
- default:
- if (space) {
- *space = "";
- }
- return "";
- }
- }
- /* }}} */
- ZEND_API char *get_active_function_name(TSRMLS_D) /* {{{ */
- {
- if (!zend_is_executing(TSRMLS_C)) {
- return NULL;
- }
- switch (EG(current_execute_data)->function_state.function->type) {
- case ZEND_USER_FUNCTION: {
- char *function_name = ((zend_op_array *) EG(current_execute_data)->function_state.function)->function_name;
- if (function_name) {
- return function_name;
- } else {
- return "main";
- }
- }
- break;
- case ZEND_INTERNAL_FUNCTION:
- return ((zend_internal_function *) EG(current_execute_data)->function_state.function)->function_name;
- break;
- default:
- return NULL;
- }
- }
- /* }}} */
- ZEND_API char *zend_get_executed_filename(TSRMLS_D) /* {{{ */
- {
- if (EG(active_op_array)) {
- return EG(active_op_array)->filename;
- } else {
- return "[no active file]";
- }
- }
- /* }}} */
- ZEND_API uint zend_get_executed_lineno(TSRMLS_D) /* {{{ */
- {
- if(EG(exception) && EG(opline_ptr) && active_opline->opcode == ZEND_HANDLE_EXCEPTION &&
- active_opline->lineno == 0 && EG(opline_before_exception)) {
- return EG(opline_before_exception)->lineno;
- }
- if (EG(opline_ptr)) {
- return active_opline->lineno;
- } else {
- return 0;
- }
- }
- /* }}} */
- ZEND_API zend_bool zend_is_executing(TSRMLS_D) /* {{{ */
- {
- return EG(in_execution);
- }
- /* }}} */
- ZEND_API void _zval_ptr_dtor(zval **zval_ptr ZEND_FILE_LINE_DC) /* {{{ */
- {
- #if DEBUG_ZEND>=2
- printf("Reducing refcount for %x (%x): %d->%d\n", *zval_ptr, zval_ptr, Z_REFCOUNT_PP(zval_ptr), Z_REFCOUNT_PP(zval_ptr) - 1);
- #endif
- Z_DELREF_PP(zval_ptr);
- if (Z_REFCOUNT_PP(zval_ptr) == 0) {
- TSRMLS_FETCH();
- if (*zval_ptr != &EG(uninitialized_zval)) {
- GC_REMOVE_ZVAL_FROM_BUFFER(*zval_ptr);
- zval_dtor(*zval_ptr);
- efree_rel(*zval_ptr);
- }
- } else {
- TSRMLS_FETCH();
- if (Z_REFCOUNT_PP(zval_ptr) == 1) {
- Z_UNSET_ISREF_PP(zval_ptr);
- }
- GC_ZVAL_CHECK_POSSIBLE_ROOT(*zval_ptr);
- }
- }
- /* }}} */
- ZEND_API void _zval_internal_ptr_dtor(zval **zval_ptr ZEND_FILE_LINE_DC) /* {{{ */
- {
- #if DEBUG_ZEND>=2
- printf("Reducing refcount for %x (%x): %d->%d\n", *zval_ptr, zval_ptr, Z_REFCOUNT_PP(zval_ptr), Z_REFCOUNT_PP(zval_ptr) - 1);
- #endif
- Z_DELREF_PP(zval_ptr);
- if (Z_REFCOUNT_PP(zval_ptr) == 0) {
- zval_internal_dtor(*zval_ptr);
- free(*zval_ptr);
- } else if (Z_REFCOUNT_PP(zval_ptr) == 1) {
- Z_UNSET_ISREF_PP(zval_ptr);
- }
- }
- /* }}} */
- ZEND_API int zend_is_true(zval *op) /* {{{ */
- {
- return i_zend_is_true(op);
- }
- /* }}} */
- #include "../TSRM/tsrm_strtok_r.h"
- #define IS_VISITED_CONSTANT IS_CONSTANT_INDEX
- #define IS_CONSTANT_VISITED(p) (Z_TYPE_P(p) & IS_VISITED_CONSTANT)
- #define Z_REAL_TYPE_P(p) (Z_TYPE_P(p) & ~IS_VISITED_CONSTANT)
- #define MARK_CONSTANT_VISITED(p) Z_TYPE_P(p) |= IS_VISITED_CONSTANT
- static void zval_deep_copy(zval **p)
- {
- zval *value;
- ALLOC_ZVAL(value);
- *value = **p;
- Z_TYPE_P(value) &= ~IS_CONSTANT_INDEX;
- zval_copy_ctor(value);
- Z_TYPE_P(value) = Z_TYPE_PP(p);
- INIT_PZVAL(value);
- *p = value;
- }
- ZEND_API int zval_update_constant_ex(zval **pp, void *arg, zend_class_entry *scope TSRMLS_DC) /* {{{ */
- {
- zval *p = *pp;
- zend_bool inline_change = (zend_bool) (zend_uintptr_t) arg;
- zval const_value;
- char *colon;
- if (IS_CONSTANT_VISITED(p)) {
- zend_error(E_ERROR, "Cannot declare self-referencing constant '%s'", Z_STRVAL_P(p));
- } else if ((Z_TYPE_P(p) & IS_CONSTANT_TYPE_MASK) == IS_CONSTANT) {
- int refcount;
- zend_uchar is_ref;
- SEPARATE_ZVAL_IF_NOT_REF(pp);
- p = *pp;
- MARK_CONSTANT_VISITED(p);
- refcount = Z_REFCOUNT_P(p);
- is_ref = Z_ISREF_P(p);
- if (!zend_get_constant_ex(p->value.str.val, p->value.str.len, &const_value, scope, Z_REAL_TYPE_P(p) TSRMLS_CC)) {
- char *actual = Z_STRVAL_P(p);
- if ((colon = zend_memrchr(Z_STRVAL_P(p), ':', Z_STRLEN_P(p)))) {
- zend_error(E_ERROR, "Undefined class constant '%s'", Z_STRVAL_P(p));
- Z_STRLEN_P(p) -= ((colon - Z_STRVAL_P(p)) + 1);
- if (inline_change) {
- colon = estrndup(colon, Z_STRLEN_P(p));
- efree(Z_STRVAL_P(p));
- Z_STRVAL_P(p) = colon;
- } else {
- Z_STRVAL_P(p) = colon + 1;
- }
- } else {
- char *save = actual, *slash;
- int actual_len = Z_STRLEN_P(p);
- if ((Z_TYPE_P(p) & IS_CONSTANT_UNQUALIFIED) && (slash = (char *)zend_memrchr(actual, '\\', actual_len))) {
- actual = slash + 1;
- actual_len -= (actual - Z_STRVAL_P(p));
- if (inline_change) {
- actual = estrndup(actual, actual_len);
- Z_STRVAL_P(p) = actual;
- Z_STRLEN_P(p) = actual_len;
- }
- }
- if (actual[0] == '\\') {
- if (inline_change) {
- memmove(Z_STRVAL_P(p), Z_STRVAL_P(p)+1, Z_STRLEN_P(p));
- --Z_STRLEN_P(p);
- } else {
- ++actual;
- }
- --actual_len;
- }
- if ((Z_TYPE_P(p) & IS_CONSTANT_UNQUALIFIED) == 0) {
- int fix_save = 0;
- if (save[0] == '\\') {
- save++;
- fix_save = 1;
- }
- zend_error(E_ERROR, "Undefined constant '%s'", save);
- if (fix_save) {
- save--;
- }
- if (inline_change) {
- efree(save);
- }
- save = NULL;
- }
- if (inline_change && save && save != actual) {
- efree(save);
- }
- zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'", actual, actual);
- p->type = IS_STRING;
- if (!inline_change) {
- Z_STRVAL_P(p) = actual;
- Z_STRLEN_P(p) = actual_len;
- zval_copy_ctor(p);
- }
- }
- } else {
- if (inline_change) {
- STR_FREE(Z_STRVAL_P(p));
- }
- *p = const_value;
- }
- Z_SET_REFCOUNT_P(p, refcount);
- Z_SET_ISREF_TO_P(p, is_ref);
- } else if (Z_TYPE_P(p) == IS_CONSTANT_ARRAY) {
- zval **element, *new_val;
- char *str_index;
- uint str_index_len;
- ulong num_index;
- int ret;
- SEPARATE_ZVAL_IF_NOT_REF(pp);
- p = *pp;
- Z_TYPE_P(p) = IS_ARRAY;
- if (!inline_change) {
- zval *tmp;
- HashTable *tmp_ht = NULL;
- ALLOC_HASHTABLE(tmp_ht);
- zend_hash_init(tmp_ht, zend_hash_num_elements(Z_ARRVAL_P(p)), NULL, ZVAL_PTR_DTOR, 0);
- zend_hash_copy(tmp_ht, Z_ARRVAL_P(p), (copy_ctor_func_t) zval_deep_copy, (void *) &tmp, sizeof(zval *));
- Z_ARRVAL_P(p) = tmp_ht;
- }
- /* First go over the array and see if there are any constant indices */
- zend_hash_internal_pointer_reset(Z_ARRVAL_P(p));
- while (zend_hash_get_current_data(Z_ARRVAL_P(p), (void **) &element) == SUCCESS) {
- if (!(Z_TYPE_PP(element) & IS_CONSTANT_INDEX)) {
- zend_hash_move_forward(Z_ARRVAL_P(p));
- continue;
- }
- Z_TYPE_PP(element) &= ~IS_CONSTANT_INDEX;
- if (zend_hash_get_current_key_ex(Z_ARRVAL_P(p), &str_index, &str_index_len, &num_index, 0, NULL) != HASH_KEY_IS_STRING) {
- zend_hash_move_forward(Z_ARRVAL_P(p));
- continue;
- }
- if (!zend_get_constant_ex(str_index, str_index_len - 3, &const_value, scope, str_index[str_index_len - 2] TSRMLS_CC)) {
- char *actual, *save = str_index;
- if ((colon = zend_memrchr(str_index, ':', str_index_len - 3))) {
- zend_error(E_ERROR, "Undefined class constant '%s'", str_index);
- str_index_len -= ((colon - str_index) + 1);
- str_index = colon;
- } else {
- if (str_index[str_index_len - 2] & IS_CONSTANT_UNQUALIFIED) {
- if ((actual = (char *)zend_memrchr(str_index, '\\', str_index_len - 3))) {
- actual++;
- str_index_len -= (actual - str_index);
- str_index = actual;
- }
- }
- if (str_index[0] == '\\') {
- ++str_index;
- --str_index_len;
- }
- if (save[0] == '\\') {
- ++save;
- }
- if ((str_index[str_index_len - 2] & IS_CONSTANT_UNQUALIFIED) == 0) {
- zend_error(E_ERROR, "Undefined constant '%s'", save);
- }
- zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'", str_index, str_index);
- }
- ZVAL_STRINGL(&const_value, str_index, str_index_len-3, 1);
- }
- if (Z_REFCOUNT_PP(element) > 1) {
- ALLOC_ZVAL(new_val);
- *new_val = **element;
- zval_copy_ctor(new_val);
- Z_SET_REFCOUNT_P(new_val, 1);
- Z_UNSET_ISREF_P(new_val);
- /* preserve this bit for inheritance */
- Z_TYPE_PP(element) |= IS_CONSTANT_INDEX;
- zval_ptr_dtor(element);
- *element = new_val;
- }
- switch (Z_TYPE(const_value)) {
- case IS_STRING:
- ret = zend_symtable_update_current_key(Z_ARRVAL_P(p), Z_STRVAL(const_value), Z_STRLEN(const_value) + 1, HASH_UPDATE_KEY_IF_BEFORE);
- break;
- case IS_BOOL:
- case IS_LONG:
- ret = zend_hash_update_current_key_ex(Z_ARRVAL_P(p), HASH_KEY_IS_LONG, NULL, 0, Z_LVAL(const_value), HASH_UPDATE_KEY_IF_BEFORE, NULL);
- break;
- case IS_DOUBLE:
- ret = zend_hash_update_current_key_ex(Z_ARRVAL_P(p), HASH_KEY_IS_LONG, NULL, 0, zend_dval_to_lval(Z_DVAL(const_value)), HASH_UPDATE_KEY_IF_BEFORE, NULL);
- break;
- case IS_NULL:
- ret = zend_hash_update_current_key_ex(Z_ARRVAL_P(p), HASH_KEY_IS_STRING, "", 1, 0, HASH_UPDATE_KEY_IF_BEFORE, NULL);
- break;
- default:
- ret = SUCCESS;
- break;
- }
- if (ret == SUCCESS) {
- zend_hash_move_forward(Z_ARRVAL_P(p));
- }
- zval_dtor(&const_value);
- }
- zend_hash_apply_with_argument(Z_ARRVAL_P(p), (apply_func_arg_t) zval_update_constant_inline_change, (void *) scope TSRMLS_CC);
- zend_hash_internal_pointer_reset(Z_ARRVAL_P(p));
- }
- return 0;
- }
- /* }}} */
- ZEND_API int zval_update_constant_inline_change(zval **pp, void *scope TSRMLS_DC) /* {{{ */
- {
- return zval_update_constant_ex(pp, (void*)1, scope TSRMLS_CC);
- }
- /* }}} */
- ZEND_API int zval_update_constant_no_inline_change(zval **pp, void *scope TSRMLS_DC) /* {{{ */
- {
- return zval_update_constant_ex(pp, (void*)0, scope TSRMLS_CC);
- }
- /* }}} */
- ZEND_API int zval_update_constant(zval **pp, void *arg TSRMLS_DC) /* {{{ */
- {
- return zval_update_constant_ex(pp, arg, NULL TSRMLS_CC);
- }
- /* }}} */
- int call_user_function(HashTable *function_table, zval **object_pp, zval *function_name, zval *retval_ptr, zend_uint param_count, zval *params[] TSRMLS_DC) /* {{{ */
- {
- zval ***params_array;
- zend_uint i;
- int ex_retval;
- zval *local_retval_ptr = NULL;
- if (param_count) {
- params_array = (zval ***) emalloc(sizeof(zval **)*param_count);
- for (i=0; i<param_count; i++) {
- params_array[i] = ¶ms[i];
- }
- } else {
- params_array = NULL;
- }
- ex_retval = call_user_function_ex(function_table, object_pp, function_name, &local_retval_ptr, param_count, params_array, 1, NULL TSRMLS_CC);
- if (local_retval_ptr) {
- COPY_PZVAL_TO_ZVAL(*retval_ptr, local_retval_ptr);
- } else {
- INIT_ZVAL(*retval_ptr);
- }
- if (params_array) {
- efree(params_array);
- }
- return ex_retval;
- }
- /* }}} */
- int call_user_function_ex(HashTable *function_table, zval **object_pp, zval *function_name, zval **retval_ptr_ptr, zend_uint param_count, zval **params[], int no_separation, HashTable *symbol_table TSRMLS_DC) /* {{{ */
- {
- zend_fcall_info fci;
- fci.size = sizeof(fci);
- fci.function_table = function_table;
- fci.object_ptr = object_pp ? *object_pp : NULL;
- fci.function_name = function_name;
- fci.retval_ptr_ptr = retval_ptr_ptr;
- fci.param_count = param_count;
- fci.params = params;
- fci.no_separation = (zend_bool) no_separation;
- fci.symbol_table = symbol_table;
- return zend_call_function(&fci, NULL TSRMLS_CC);
- }
- /* }}} */
- int zend_call_function(zend_fcall_info *fci, zend_fcall_info_cache *fci_cache TSRMLS_DC) /* {{{ */
- {
- zend_uint i;
- zval **original_return_value;
- HashTable *calling_symbol_table;
- zend_op_array *original_op_array;
- zend_op **original_opline_ptr;
- zend_class_entry *current_scope;
- zend_class_entry *current_called_scope;
- zend_class_entry *calling_scope = NULL;
- zend_class_entry *called_scope = NULL;
- zval *current_this;
- zend_execute_data execute_data;
- *fci->retval_ptr_ptr = NULL;
- if (!EG(active)) {
- return FAILURE; /* executor is already inactive */
- }
- if (EG(exception)) {
- return FAILURE; /* we would result in an instable executor otherwise */
- }
- switch (fci->size) {
- case sizeof(zend_fcall_info):
- break; /* nothing to do currently */
- default:
- zend_error(E_ERROR, "Corrupted fcall_info provided to zend_call_function()");
- break;
- }
- /* Initialize execute_data */
- if (EG(current_execute_data)) {
- execute_data = *EG(current_execute_data);
- EX(op_array) = NULL;
- EX(opline) = NULL;
- EX(object) = NULL;
- } else {
- /* This only happens when we're called outside any execute()'s
- * It shouldn't be strictly necessary to NULL execute_data out,
- * but it may make bugs easier to spot
- */
- memset(&execute_data, 0, sizeof(zend_execute_data));
- }
- if (!fci_cache || !fci_cache->initialized) {
- zend_fcall_info_cache fci_cache_local;
- char *callable_name;
- char *error = NULL;
- if (!fci_cache) {
- fci_cache = &fci_cache_local;
- }
- if (!zend_is_callable_ex(fci->function_name, fci->object_ptr, IS_CALLABLE_CHECK_SILENT, &callable_name, NULL, fci_cache, &error TSRMLS_CC)) {
- if (error) {
- zend_error(E_WARNING, "Invalid callback %s, %s", callable_name, error);
- efree(error);
- }
- if (callable_name) {
- efree(callable_name);
- }
- return FAILURE;
- } else if (error) {
- /* Capitalize the first latter of the error message */
- if (error[0] >= 'a' && error[0] <= 'z') {
- error[0] += ('A' - 'a');
- }
- zend_error(E_STRICT, "%s", error);
- efree(error);
- }
- efree(callable_name);
- }
- EX(function_state).function = fci_cache->function_handler;
- calling_scope = fci_cache->calling_scope;
- called_scope = fci_cache->called_scope;
- fci->object_ptr = fci_cache->object_ptr;
- EX(object) = fci->object_ptr;
- if (fci->object_ptr && Z_TYPE_P(fci->object_ptr) == IS_OBJECT &&
- (!EG(objects_store).object_buckets || !EG(objects_store).object_buckets[Z_OBJ_HANDLE_P(fci->object_ptr)].valid)) {
- return FAILURE;
- }
- if (EX(function_state).function->common.fn_flags & (ZEND_ACC_ABSTRACT|ZEND_ACC_DEPRECATED)) {
- if (EX(function_state).function->common.fn_flags & ZEND_ACC_ABSTRACT) {
- zend_error_noreturn(E_ERROR, "Cannot call abstract method %s::%s()", EX(function_state).function->common.scope->name, EX(function_state).function->common.function_name);
- }
- if (EX(function_state).function->common.fn_flags & ZEND_ACC_DEPRECATED) {
- zend_error(E_DEPRECATED, "Function %s%s%s() is deprecated",
- EX(function_state).function->common.scope ? EX(function_state).function->common.scope->name : "",
- EX(function_state).function->common.scope ? "::" : "",
- EX(function_state).function->common.function_name);
- }
- }
- ZEND_VM_STACK_GROW_IF_NEEDED(fci->param_count + 1);
- for (i=0; i<fci->param_count; i++) {
- zval *param;
- if (EX(function_state).function->type == ZEND_INTERNAL_FUNCTION
- && (EX(function_state).function->common.fn_flags & ZEND_ACC_CALL_VIA_HANDLER) == 0
- && !ARG_SHOULD_BE_SENT_BY_REF(EX(function_state).function, i + 1)
- && PZVAL_IS_REF(*fci->params[i])) {
- SEPARATE_ZVAL(fci->params[i]);
- }
- if (ARG_SHOULD_BE_SENT_BY_REF(EX(function_state).function, i + 1)
- && !PZVAL_IS_REF(*fci->params[i])) {
- if (Z_REFCOUNT_PP(fci->params[i]) > 1) {
- zval *new_zval;
- if (fci->no_separation &&
- !ARG_MAY_BE_SENT_BY_REF(EX(function_state).function, i + 1)) {
- if(i) {
- /* hack to clean up the stack */
- zend_vm_stack_push_nocheck((void *) (zend_uintptr_t)i TSRMLS_CC);
- zend_vm_stack_clear_multiple(TSRMLS_C);
- }
- zend_error(E_WARNING, "Parameter %d to %s%s%s() expected to be a reference, value given",
- i+1,
- EX(function_state).function->common.scope ? EX(function_state).function->common.scope->name : "",
- EX(function_state).function->common.scope ? "::" : "",
- EX(function_state).function->common.function_name);
- return FAILURE;
- }
- ALLOC_ZVAL(new_zval);
- *new_zval = **fci->params[i];
- zval_copy_ctor(new_zval);
- Z_SET_REFCOUNT_P(new_zval, 1);
- Z_DELREF_PP(fci->params[i]);
- *fci->params[i] = new_zval;
- }
- Z_ADDREF_PP(fci->params[i]);
- Z_SET_ISREF_PP(fci->params[i]);
- param = *fci->params[i];
- } else if (*fci->params[i] != &EG(uninitialized_zval)) {
- Z_ADDREF_PP(fci->params[i]);
- param = *fci->params[i];
- } else {
- ALLOC_ZVAL(param);
- *param = **(fci->params[i]);
- INIT_PZVAL(param);
- }
- zend_vm_stack_push_nocheck(param TSRMLS_CC);
- }
- EX(function_state).arguments = zend_vm_stack_top(TSRMLS_C);
- zend_vm_stack_push_nocheck((void*)(zend_uintptr_t)fci->param_count TSRMLS_CC);
- current_scope = EG(scope);
- EG(scope) = calling_scope;
- current_this = EG(This);
- current_called_scope = EG(called_scope);
- if (called_scope) {
- EG(called_scope) = called_scope;
- } else if (EX(function_state).function->type != ZEND_INTERNAL_FUNCTION) {
- EG(called_scope) = NULL;
- }
- if (fci->object_ptr) {
- if ((EX(function_state).function->common.fn_flags & ZEND_ACC_STATIC)) {
- EG(This) = NULL;
- } else {
- EG(This) = fci->object_ptr;
- if (!PZVAL_IS_REF(EG(This))) {
- Z_ADDREF_P(EG(This)); /* For $this pointer */
- } else {
- zval *this_ptr;
- ALLOC_ZVAL(this_ptr);
- *this_ptr = *EG(This);
- INIT_PZVAL(this_ptr);
- zval_copy_ctor(this_ptr);
- EG(This) = this_ptr;
- }
- }
- } else {
- EG(This) = NULL;
- }
- EX(prev_execute_data) = EG(current_execute_data);
- EG(current_execute_data) = &execute_data;
- if (EX(function_state).function->type == ZEND_USER_FUNCTION) {
- calling_symbol_table = EG(active_symbol_table);
- EG(scope) = EX(function_state).function->common.scope;
- if (fci->symbol_table) {
- EG(active_symbol_table) = fci->symbol_table;
- } else {
- EG(active_symbol_table) = NULL;
- }
- original_return_value = EG(return_value_ptr_ptr);
- original_op_array = EG(active_op_array);
- EG(return_value_ptr_ptr) = fci->retval_ptr_ptr;
- EG(active_op_array) = (zend_op_array *) EX(function_state).function;
- original_opline_ptr = EG(opline_ptr);
- zend_execute(EG(active_op_array) TSRMLS_CC);
- if (!fci->symbol_table && EG(active_symbol_table)) {
- if (EG(symtable_cache_ptr)>=EG(symtable_cache_limit)) {
- zend_hash_destroy(EG(active_symbol_table));
- FREE_HASHTABLE(EG(active_symbol_table));
- } else {
- /* clean before putting into the cache, since clean
- could call dtors, which could use cached hash */
- zend_hash_clean(EG(active_symbol_table));
- *(++EG(symtable_cache_ptr)) = EG(active_symbol_table);
- }
- }
- EG(active_symbol_table) = calling_symbol_table;
- EG(active_op_array) = original_op_array;
- EG(return_value_ptr_ptr)=original_return_value;
- EG(opline_ptr) = original_opline_ptr;
- } else if (EX(function_state).function->type == ZEND_INTERNAL_FUNCTION) {
- int call_via_handler = (EX(function_state).function->common.fn_flags & ZEND_ACC_CALL_VIA_HANDLER) != 0;
- ALLOC_INIT_ZVAL(*fci->retval_ptr_ptr);
- if (EX(function_state).function->common.scope) {
- EG(scope) = EX(function_state).function->common.scope;
- }
- ((zend_internal_function *) EX(function_state).function)->handler(fci->param_count, *fci->retval_ptr_ptr, fci->retval_ptr_ptr, fci->object_ptr, 1 TSRMLS_CC);
- /* We shouldn't fix bad extensions here,
- because it can break proper ones (Bug #34045)
- if (!EX(function_state).function->common.return_reference)
- {
- INIT_PZVAL(*fci->retval_ptr_ptr);
- }*/
- if (EG(exception) && fci->retval_ptr_ptr) {
- zval_ptr_dtor(fci->retval_ptr_ptr);
- *fci->retval_ptr_ptr = NULL;
- }
- if (call_via_handler) {
- /* We must re-initialize function again */
- fci_cache->initialized = 0;
- }
- } else { /* ZEND_OVERLOADED_FUNCTION */
- ALLOC_INIT_ZVAL(*fci->retval_ptr_ptr);
- /* Not sure what should be done here if it's a static method */
- if (fci->object_ptr) {
- Z_OBJ_HT_P(fci->object_ptr)->call_method(EX(function_state).function->common.function_name, fci->param_count, *fci->retval_ptr_ptr, fci->retval_ptr_ptr, fci->object_ptr, 1 TSRMLS_CC);
- } else {
- zend_error_noreturn(E_ERROR, "Cannot call overloaded function for non-object");
- }
- if (EX(function_state).function->type == ZEND_OVERLOADED_FUNCTION_TEMPORARY) {
- efree(EX(function_state).function->common.function_name);
- }
- efree(EX(function_state).function);
- if (EG(exception) && fci->retval_ptr_ptr) {
- zval_ptr_dtor(fci->retval_ptr_ptr);
- *fci->retval_ptr_ptr = NULL;
- }
- }
- zend_vm_stack_clear_multiple(TSRMLS_C);
- if (EG(This)) {
- zval_ptr_dtor(&EG(This));
- }
- EG(called_scope) = current_called_scope;
- EG(scope) = current_scope;
- EG(This) = current_this;
- EG(current_execute_data) = EX(prev_execute_data);
- if (EG(exception)) {
- zend_throw_exception_internal(NULL TSRMLS_CC);
- }
- return SUCCESS;
- }
- /* }}} */
- ZEND_API int zend_lookup_class_ex(const char *name, int name_length, int use_autoload, zend_class_entry ***ce TSRMLS_DC) /* {{{ */
- {
- zval **args[1];
- zval autoload_function;
- zval *class_name_ptr;
- zval *retval_ptr = NULL;
- int retval, lc_length;
- char *lc_name;
- char *lc_free;
- zend_fcall_info fcall_info;
- zend_fcall_info_cache fcall_cache;
- char dummy = 1;
- ulong hash;
- ALLOCA_FLAG(use_heap)
- if (name == NULL || !name_length) {
- return FAILURE;
- }
- lc_free = lc_name = do_alloca(name_length + 1, use_heap);
- zend_str_tolower_copy(lc_name, name, name_length);
- lc_length = name_length + 1;
- if (lc_name[0] == '\\') {
- lc_name += 1;
- lc_length -= 1;
- }
- hash = zend_inline_hash_func(lc_name, lc_length);
- if (zend_hash_quick_find(EG(class_table), lc_name, lc_length, hash, (void **) ce) == SUCCESS) {
- free_alloca(lc_free, use_heap);
- return SUCCESS;
- }
- /* The compiler is not-reentrant. Make sure we __autoload() only during run-time
- * (doesn't impact fuctionality of __autoload()
- */
- if (!use_autoload || zend_is_compiling(TSRMLS_C)) {
- free_alloca(lc_free, use_heap);
- return FAILURE;
- }
- if (EG(in_autoload) == NULL) {
- ALLOC_HASHTABLE(EG(in_autoload));
- zend_hash_init(EG(in_autoload), 0, NULL, NULL, 0);
- }
- if (zend_hash_quick_add(EG(in_autoload), lc_name, lc_length, hash, (void**)&dummy, sizeof(char), NULL) == FAILURE) {
- free_alloca(lc_free, use_heap);
- return FAILURE;
- }
- ZVAL_STRINGL(&autoload_function, ZEND_AUTOLOAD_FUNC_NAME, sizeof(ZEND_AUTOLOAD_FUNC_NAME) - 1, 0);
- ALLOC_ZVAL(class_name_ptr);
- INIT_PZVAL(class_name_ptr);
- if (name[0] == '\\') {
- ZVAL_STRINGL(class_name_ptr, name+1, name_length-1, 1);
- } else {
- ZVAL_STRINGL(class_name_ptr, name, name_length, 1);
- }
- args[0] = &class_name_ptr;
- fcall_info.size = sizeof(fcall_info);
- fcall_info.function_table = EG(function_table);
- fcall_info.function_name = &autoload_function;
- fcall_info.symbol_table = NULL;
- fcall_info.retval_ptr_ptr = &retval_ptr;
- fcall_info.param_count = 1;
- fcall_info.params = args;
- fcall_info.object_ptr = NULL;
- fcall_info.no_separation = 1;
- fcall_cache.initialized = EG(autoload_func) ? 1 : 0;
- fcall_cache.function_handler = EG(autoload_func);
- fcall_cache.calling_scope = NULL;
- fcall_cache.called_scope = NULL;
- fcall_cache.object_ptr = NULL;
- zend_exception_save(TSRMLS_C);
- retval = zend_call_function(&fcall_info, &fcall_cache TSRMLS_CC);
- zend_exception_restore(TSRMLS_C);
- EG(autoload_func) = fcall_cache.function_handler;
- zval_ptr_dtor(&class_name_ptr);
- zend_hash_quick_del(EG(in_autoload), lc_name, lc_length, hash);
- if (retval_ptr) {
- zval_ptr_dtor(&retval_ptr);
- }
- if (retval == FAILURE) {
- free_alloca(lc_free, use_heap);
- return FAILURE;
- }
- retval = zend_hash_quick_find(EG(class_table), lc_name, lc_length, hash, (void **) ce);
- free_alloca(lc_free, use_heap);
- return retval;
- }
- /* }}} */
- ZEND_API int zend_lookup_class(const char *name, int name_length, zend_class_entry ***ce TSRMLS_DC) /* {{{ */
- {
- return zend_lookup_class_ex(name, name_length, 1, ce TSRMLS_CC);
- }
- /* }}} */
- ZEND_API int zend_eval_stringl(char *str, int str_len, zval *retval_ptr, char *string_name TSRMLS_DC) /* {{{ */
- {
- zval pv;
- zend_op_array *new_op_array;
- zend_op_array *original_active_op_array = EG(active_op_array);
- zend_uint original_compiler_options;
- int retval;
- if (retval_ptr) {
- Z_STRLEN(pv) = str_len + sizeof("return ;") - 1;
- Z_STRVAL(pv) = emalloc(Z_STRLEN(pv) + 1);
- memcpy(Z_STRVAL(pv), "return ", sizeof("return ") - 1);
- memcpy(Z_STRVAL(pv) + sizeof("return ") - 1, str, str_len);
- Z_STRVAL(pv)[Z_STRLEN(pv) - 1] = ';';
- Z_STRVAL(pv)[Z_STRLEN(pv)] = '\0';
- } else {
- Z_STRLEN(pv) = str_len;
- Z_STRVAL(pv) = str;
- }
- Z_TYPE(pv) = IS_STRING;
- /*printf("Evaluating '%s'\n", pv.value.str.val);*/
- original_compiler_options = CG(compiler_options);
- CG(compiler_options) = ZEND_COMPILE_DEFAULT_FOR_EVAL;
- new_op_array = zend_compile_string(&pv, string_name TSRMLS_CC);
- CG(compiler_options) = original_compiler_options;
- if (new_op_array) {
- zval *local_retval_ptr=NULL;
- zval **original_return_value_ptr_ptr = EG(return_value_ptr_ptr);
- zend_op **original_opline_ptr = EG(opline_ptr);
- int orig_interactive = CG(interactive);
- EG(return_value_ptr_ptr) = &local_retval_ptr;
- EG(active_op_array) = new_op_array;
- EG(no_extensions)=1;
- if (!EG(active_symbol_table)) {
- zend_rebuild_symbol_table(TSRMLS_C);
- }
- CG(interactive) = 0;
- zend_execute(new_op_array TSRMLS_CC);
- CG(interactive) = orig_interactive;
- if (local_retval_ptr) {
- if (retval_ptr) {
- COPY_PZVAL_TO_ZVAL(*retval_ptr, local_retval_ptr);
- } else {
- zval_ptr_dtor(&local_retval_ptr);
- }
- } else {
- if (retval_ptr) {
- INIT_ZVAL(*retval_ptr);
- }
- }
- EG(no_extensions)=0;
- EG(opline_ptr) = original_opline_ptr;
- EG(active_op_array) = original_active_op_array;
- destroy_op_array(new_op_array TSRMLS_CC);
- efree(new_op_array);
- EG(return_value_ptr_ptr) = original_return_value_ptr_ptr;
- retval = SUCCESS;
- } else {
- retval = FAILURE;
- }
- if (retval_ptr) {
- zval_dtor(&pv);
- }
- return retval;
- }
- /* }}} */
- ZEND_API int zend_eval_string(char *str, zval *retval_ptr, char *string_name TSRMLS_DC) /* {{{ */
- {
- return zend_eval_stringl(str, strlen(str), retval_ptr, string_name TSRMLS_CC);
- }
- /* }}} */
- ZEND_API int zend_eval_stringl_ex(char *str, int str_len, zval *retval_ptr, char *string_name, int handle_exceptions TSRMLS_DC) /* {{{ */
- {
- int result;
- result = zend_eval_stringl(str, str_len, retval_ptr, string_name TSRMLS_CC);
- if (handle_exceptions && EG(exception)) {
- zend_exception_error(EG(exception), E_ERROR TSRMLS_CC);
- result = FAILURE;
- }
- return result;
- }
- /* }}} */
- ZEND_API int zend_eval_string_ex(char *str, zval *retval_ptr, char *string_name, int handle_exceptions TSRMLS_DC) /* {{{ */
- {
- return zend_eval_stringl_ex(str, strlen(str), retval_ptr, string_name, handle_exceptions TSRMLS_CC);
- }
- /* }}} */
- void execute_new_code(TSRMLS_D) /* {{{ */
- {
- zend_op *opline, *end;
- zend_op *ret_opline;
- int orig_interactive;
- if (!(CG(active_op_array)->fn_flags & ZEND_ACC_INTERACTIVE)
- || CG(active_op_array)->backpatch_count>0
- || CG(active_op_array)->function_name
- || CG(active_op_array)->type!=ZEND_USER_FUNCTION) {
- return;
- }
- ret_opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- ret_opline->opcode = ZEND_RETURN;
- ret_opline->op1.op_type = IS_CONST;
- INIT_ZVAL(ret_opline->op1.u.constant);
- SET_UNUSED(ret_opline->op2);
- if (!CG(active_op_array)->start_op) {
- CG(active_op_array)->start_op = CG(active_op_array)->opcodes;
- }
- opline=CG(active_op_array)->start_op;
- end=CG(active_op_array)->opcodes+CG(active_op_array)->last;
- while (opline<end) {
- if (opline->op1.op_type == IS_CONST) {
- Z_SET_ISREF(opline->op1.u.constant);
- Z_SET_REFCOUNT(opline->op1.u.constant, 2); /* Make sure is_ref won't be reset */
- }
- if (opline->op2.op_type == IS_CONST) {
- Z_SET_ISREF(opline->op2.u.constant);
- Z_SET_REFCOUNT(opline->op2.u.constant, 2);
- }
- switch (opline->opcode) {
- case ZEND_GOTO:
- if (Z_TYPE(opline->op2.u.constant) != IS_LONG) {
- zend_resolve_goto_label(CG(active_op_array), opline, 1 TSRMLS_CC);
- }
- /* break omitted intentionally */
- case ZEND_JMP:
- opline->op1.u.jmp_addr = &CG(active_op_array)->opcodes[opline->op1.u.opline_num];
- break;
- case ZEND_JMPZ:
- case ZEND_JMPNZ:
- case ZEND_JMPZ_EX:
- case ZEND_JMPNZ_EX:
- case ZEND_JMP_SET:
- opline->op2.u.jmp_addr = &CG(active_op_array)->opcodes[opline->op2.u.opline_num];
- break;
- }
- ZEND_VM_SET_OPCODE_HANDLER(opline);
- opline++;
- }
-
- zend_release_labels(TSRMLS_C);
-
- EG(return_value_ptr_ptr) = NULL;
- EG(active_op_array) = CG(active_op_array);
- orig_interactive = CG(interactive);
- CG(interactive) = 0;
- zend_execute(CG(active_op_array) TSRMLS_CC);
- CG(interactive) = orig_interactive;
- if (EG(exception)) {
- zend_exception_error(EG(exception), E_ERROR TSRMLS_CC);
- }
- CG(active_op_array)->last -= 1; /* get rid of that ZEND_RETURN */
- CG(active_op_array)->start_op = CG(active_op_array)->opcodes+CG(active_op_array)->last;
- }
- /* }}} */
- ZEND_API void zend_timeout(int dummy) /* {{{ */
- {
- TSRMLS_FETCH();
- if (zend_on_timeout) {
- zend_on_timeout(EG(timeout_seconds) TSRMLS_CC);
- }
- zend_error(E_ERROR, "Maximum execution time of %d second%s exceeded", EG(timeout_seconds), EG(timeout_seconds) == 1 ? "" : "s");
- }
- /* }}} */
- #ifdef ZEND_WIN32
- static LRESULT CALLBACK zend_timeout_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) /* {{{ */
- {
- switch (message) {
- case WM_DESTROY:
- PostQuitMessage(0);
- break;
- case WM_REGISTER_ZEND_TIMEOUT:
- /* wParam is the thread id pointer, lParam is the timeout amount in seconds */
- if (lParam == 0) {
- KillTimer(timeout_window, wParam);
- } else {
- #ifdef ZTS
- void ***tsrm_ls;
- #endif
- SetTimer(timeout_window, wParam, lParam*1000, NULL);
- #ifdef ZTS
- tsrm_ls = ts_resource_ex(0, &wParam);
- if (!tsrm_ls) {
- /* shouldn't normally happen */
- break;
- }
- #endif
- EG(timed_out) = 0;
- }
- break;
- case WM_UNREGISTER_ZEND_TIMEOUT:
- /* wParam is the thread id pointer */
- KillTimer(timeout_window, wParam);
- break;
- case WM_TIMER: {
- #ifdef ZTS
- void ***tsrm_ls;
- tsrm_ls = ts_resource_ex(0, &wParam);
- if (!tsrm_ls) {
- /* Thread died before receiving its timeout? */
- break;
- }
- #endif
- KillTimer(timeout_window, wParam);
- EG(timed_out) = 1;
- }
- break;
- default:
- return DefWindowProc(hWnd, message, wParam, lParam);
- }
- return 0;
- }
- /* }}} */
- static unsigned __stdcall timeout_thread_proc(void *pArgs) /* {{{ */
- {
- MSG message;
- wc.style=0;
- wc.lpfnWndProc = zend_timeout_WndProc;
- wc.cbClsExtra=0;
- wc.cbWndExtra=0;
- wc.hInstance=NULL;
- wc.hIcon=NULL;
- wc.hCursor=NULL;
- wc.hbrBackground=(HBRUSH)(COLOR_BACKGROUND + 5);
- wc.lpszMenuName=NULL;
- wc.lpszClassName = "Zend Timeout Window";
- if (!RegisterClass(&wc)) {
- return -1;
- }
- timeout_window = CreateWindow(wc.lpszClassName, wc.lpszClassName, 0, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, NULL, NULL);
- SetEvent(timeout_thread_event);
- while (GetMessage(&message, NULL, 0, 0)) {
- SendMessage(timeout_window, message.message, message.wParam, message.lParam);
- if (message.message == WM_QUIT) {
- break;
- }
- }
- DestroyWindow(timeout_window);
- UnregisterClass(wc.lpszClassName, NULL);
- SetEvent(timeout_thread_handle);
- return 0;
- }
- /* }}} */
- void zend_init_timeout_thread(void) /* {{{ */
- {
- timeout_thread_event = CreateEvent(NULL, FALSE, FALSE, NULL);
- timeout_thread_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
- _beginthreadex(NULL, 0, timeout_thread_proc, NULL, 0, &timeout_thread_id);
- WaitForSingleObject(timeout_thread_event, INFINITE);
- }
- /* }}} */
- void zend_shutdown_timeout_thread(void) /* {{{ */
- {
- if (!timeout_thread_initialized) {
- return;
- }
- PostThreadMessage(timeout_thread_id, WM_QUIT, 0, 0);
- /* Wait for thread termination */
- WaitForSingleObject(timeout_thread_handle, 5000);
- CloseHandle(timeout_thread_handle);
- timeout_thread_initialized = 0;
- }
- /* }}} */
- #endif
- /* This one doesn't exists on QNX */
- #ifndef SIGPROF
- #define SIGPROF 27
- #endif
- void zend_set_timeout(long seconds, int reset_signals) /* {{{ */
- {
- TSRMLS_FETCH();
- EG(timeout_seconds) = seconds;
- #ifdef ZEND_WIN32
- if(!seconds) {
- return;
- }
- if (timeout_thread_initialized == 0 && InterlockedIncrement(&timeout_thread_initialized) == 1) {
- /* We start up this process-wide thread here and not in zend_startup(), because if Zend
- * is initialized inside a DllMain(), you're not supposed to start threads from it.
- */
- zend_init_timeout_thread();
- }
- PostThreadMessage(timeout_thread_id, WM_REGISTER_ZEND_TIMEOUT, (WPARAM) GetCurrentThreadId(), (LPARAM) seconds);
- #else
- # ifdef HAVE_SETITIMER
- {
- struct itimerval t_r; /* timeout requested */
- sigset_t sigset;
- if(seconds) {
- t_r.it_value.tv_sec = seconds;
- t_r.it_value.tv_usec = t_r.it_interval.tv_sec = t_r.it_interval.tv_usec = 0;
- # ifdef __CYGWIN__
- setitimer(ITIMER_REAL, &t_r, NULL);
- }
- if(reset_signals) {
- signal(SIGALRM, zend_timeout);
- sigemptyset(&sigset);
- sigaddset(&sigset, SIGALRM);
- }
- # else
- setitimer(ITIMER_PROF, &t_r, NULL);
- }
- if(reset_signals) {
- signal(SIGPROF, zend_timeout);
- sigemptyset(&sigset);
- sigaddset(&sigset, SIGPROF);
- }
- # endif
- if(reset_signals) {
- sigprocmask(SIG_UNBLOCK, &sigset, NULL);
- }
- }
- # endif
- #endif
- }
- /* }}} */
- void zend_unset_timeout(TSRMLS_D) /* {{{ */
- {
- #ifdef ZEND_WIN32
- if(timeout_thread_initialized) {
- PostThreadMessage(timeout_thread_id, WM_UNREGISTER_ZEND_TIMEOUT, (WPARAM) GetCurrentThreadId(), (LPARAM) 0);
- }
- #else
- # ifdef HAVE_SETITIMER
- if (EG(timeout_seconds)) {
- struct itimerval no_timeout;
- no_timeout.it_value.tv_sec = no_timeout.it_value.tv_usec = no_timeout.it_interval.tv_sec = no_timeout.it_interval.tv_usec = 0;
- #ifdef __CYGWIN__
- setitimer(ITIMER_REAL, &no_timeout, NULL);
- #else
- setitimer(ITIMER_PROF, &no_timeout, NULL);
- #endif
- }
- # endif
- #endif
- }
- /* }}} */
- zend_class_entry *zend_fetch_class(const char *class_name, uint class_name_len, int fetch_type TSRMLS_DC) /* {{{ */
- {
- zend_class_entry **pce;
- int use_autoload = (fetch_type & ZEND_FETCH_CLASS_NO_AUTOLOAD) == 0;
- int silent = (fetch_type & ZEND_FETCH_CLASS_SILENT) != 0;
- fetch_type &= ZEND_FETCH_CLASS_MASK;
- check_fetch_type:
- switch (fetch_type) {
- case ZEND_FETCH_CLASS_SELF:
- if (!EG(scope)) {
- zend_error(E_ERROR, "Cannot access self:: when no class scope is active");
- }
- return EG(scope);
- case ZEND_FETCH_CLASS_PARENT:
- if (!EG(scope)) {
- zend_error(E_ERROR, "Cannot access parent:: when no class scope is active");
- }
- if (!EG(scope)->parent) {
- zend_error(E_ERROR, "Cannot access parent:: when current class scope has no parent");
- }
- return EG(scope)->parent;
- case ZEND_FETCH_CLASS_STATIC:
- if (!EG(called_scope)) {
- zend_error(E_ERROR, "Cannot access static:: when no class scope is active");
- }
- return EG(called_scope);
- case ZEND_FETCH_CLASS_AUTO: {
- fetch_type = zend_get_class_fetch_type(class_name, class_name_len);
- if (fetch_type!=ZEND_FETCH_CLASS_DEFAULT) {
- goto check_fetch_type;
- }
- }
- break;
- }
- if (zend_lookup_class_ex(class_name, class_name_len, use_autoload, &pce TSRMLS_CC) == FAILURE) {
- if (use_autoload) {
- if (!silent && !EG(exception)) {
- if (fetch_type == ZEND_FETCH_CLASS_INTERFACE) {
- zend_error(E_ERROR, "Interface '%s' not found", class_name);
- } else {
- zend_error(E_ERROR, "Class '%s' not found", class_name);
- }
- }
- }
- return NULL;
- }
- return *pce;
- }
- /* }}} */
- #define MAX_ABSTRACT_INFO_CNT 3
- #define MAX_ABSTRACT_INFO_FMT "%s%s%s%s"
- #define DISPLAY_ABSTRACT_FN(idx) \
- ai.afn[idx] ? ZEND_FN_SCOPE_NAME(ai.afn[idx]) : "", \
- ai.afn[idx] ? "::" : "", \
- ai.afn[idx] ? ai.afn[idx]->common.function_name : "", \
- ai.afn[idx] && ai.afn[idx + 1] ? ", " : (ai.afn[idx] && ai.cnt > MAX_ABSTRACT_INFO_CNT ? ", ..." : "")
- typedef struct _zend_abstract_info {
- zend_function *afn[MAX_ABSTRACT_INFO_CNT + 1];
- int cnt;
- int ctor;
- } zend_abstract_info;
- static int zend_verify_abstract_class_function(zend_function *fn, zend_abstract_info *ai TSRMLS_DC) /* {{{ */
- {
- if (fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
- if (ai->cnt < MAX_ABSTRACT_INFO_CNT) {
- ai->afn[ai->cnt] = fn;
- }
- if (fn->common.fn_flags & ZEND_ACC_CTOR) {
- if (!ai->ctor) {
- ai->cnt++;
- ai->ctor = 1;
- } else {
- ai->afn[ai->cnt] = NULL;
- }
- } else {
- ai->cnt++;
- }
- }
- return 0;
- }
- /* }}} */
- void zend_verify_abstract_class(zend_class_entry *ce TSRMLS_DC) /* {{{ */
- {
- zend_abstract_info ai;
- if ((ce->ce_flags & ZEND_ACC_IMPLICIT_ABSTRACT_CLASS) && !(ce->ce_flags & ZEND_ACC_EXPLICIT_ABSTRACT_CLASS)) {
- memset(&ai, 0, sizeof(ai));
- zend_hash_apply_with_argument(&ce->function_table, (apply_func_arg_t) zend_verify_abstract_class_function, &ai TSRMLS_CC);
- if (ai.cnt) {
- zend_error(E_ERROR, "Class %s contains %d abstract method%s and must therefore be declared abstract or implement the remaining methods (" MAX_ABSTRACT_INFO_FMT MAX_ABSTRACT_INFO_FMT MAX_ABSTRACT_INFO_FMT ")",
- ce->name, ai.cnt,
- ai.cnt > 1 ? "s" : "",
- DISPLAY_ABSTRACT_FN(0),
- DISPLAY_ABSTRACT_FN(1),
- DISPLAY_ABSTRACT_FN(2)
- );
- }
- }
- }
- /* }}} */
- ZEND_API void zend_reset_all_cv(HashTable *symbol_table TSRMLS_DC) /* {{{ */
- {
- zend_execute_data *ex;
- int i;
- for (ex = EG(current_execute_data); ex; ex = ex->prev_execute_data) {
- if (ex->op_array && ex->symbol_table == symbol_table) {
- for (i = 0; i < ex->op_array->last_var; i++) {
- ex->CVs[i] = NULL;
- }
- }
- }
- }
- /* }}} */
- ZEND_API int zend_delete_global_variable(char *name, int name_len TSRMLS_DC) /* {{{ */
- {
- zend_execute_data *ex;
- ulong hash_value = zend_inline_hash_func(name, name_len + 1);
- if (zend_hash_quick_exists(&EG(symbol_table), name, name_len + 1, hash_value)) {
- for (ex = EG(current_execute_data); ex; ex = ex->prev_execute_data) {
- if (ex->op_array && ex->symbol_table == &EG(symbol_table)) {
- int i;
- for (i = 0; i < ex->op_array->last_var; i++) {
- if (ex->op_array->vars[i].hash_value == hash_value &&
- ex->op_array->vars[i].name_len == name_len &&
- !memcmp(ex->op_array->vars[i].name, name, name_len)
- ) {
- ex->CVs[i] = NULL;
- break;
- }
- }
- }
- }
- return zend_hash_quick_del(&EG(symbol_table), name, name_len + 1, hash_value);
- }
- return FAILURE;
- }
- /* }}} */
- ZEND_API void zend_rebuild_symbol_table(TSRMLS_D) /* {{{ */
- {
- zend_uint i;
- zend_execute_data *ex;
- if (!EG(active_symbol_table)) {
-
- /* Search for last called user function */
- ex = EG(current_execute_data);
- while (ex && !ex->op_array) {
- ex = ex->prev_execute_data;
- }
- if (ex && ex->symbol_table) {
- EG(active_symbol_table) = ex->symbol_table;
- return;
- }
- if (ex && ex->op_array) {
- if (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
- /*printf("Cache hit! Reusing %x\n", symtable_cache[symtable_cache_ptr]);*/
- EG(active_symbol_table) = *(EG(symtable_cache_ptr)--);
- } else {
- ALLOC_HASHTABLE(EG(active_symbol_table));
- zend_hash_init(EG(active_symbol_table), 0, NULL, ZVAL_PTR_DTOR, 0);
- /*printf("Cache miss! Initialized %x\n", EG(active_symbol_table));*/
- }
- ex…
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