mirror of
https://github.com/php/php-src.git
synced 2024-12-24 09:18:17 +08:00
065d00f241
* PHP-7.4: Fix leak with cycle in static prop of internal class
1589 lines
44 KiB
C
1589 lines
44 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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| Dmitry Stogov <dmitry@php.net> |
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+----------------------------------------------------------------------+
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*/
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#include <stdio.h>
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#include <signal.h>
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#include "zend.h"
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#include "zend_compile.h"
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#include "zend_execute.h"
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#include "zend_API.h"
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#include "zend_stack.h"
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#include "zend_constants.h"
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#include "zend_extensions.h"
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#include "zend_exceptions.h"
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#include "zend_closures.h"
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#include "zend_generators.h"
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#include "zend_vm.h"
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#include "zend_float.h"
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#include "zend_weakrefs.h"
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#include "zend_inheritance.h"
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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ZEND_API void (*zend_execute_ex)(zend_execute_data *execute_data);
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ZEND_API void (*zend_execute_internal)(zend_execute_data *execute_data, zval *return_value);
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/* true globals */
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ZEND_API const zend_fcall_info empty_fcall_info = { 0, {{0}, {{0}}, {0}}, NULL, NULL, NULL, 0, 0 };
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ZEND_API const zend_fcall_info_cache empty_fcall_info_cache = { NULL, NULL, NULL, NULL };
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#ifdef ZEND_WIN32
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ZEND_TLS HANDLE tq_timer = NULL;
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#endif
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#if 0&&ZEND_DEBUG
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static void (*original_sigsegv_handler)(int);
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static void zend_handle_sigsegv(int dummy) /* {{{ */
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{
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fflush(stdout);
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fflush(stderr);
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if (original_sigsegv_handler == zend_handle_sigsegv) {
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signal(SIGSEGV, original_sigsegv_handler);
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} else {
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signal(SIGSEGV, SIG_DFL);
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}
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{
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fprintf(stderr, "SIGSEGV caught on opcode %d on opline %d of %s() at %s:%d\n\n",
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active_opline->opcode,
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active_opline-EG(active_op_array)->opcodes,
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get_active_function_name(),
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zend_get_executed_filename(),
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zend_get_executed_lineno());
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/* See http://support.microsoft.com/kb/190351 */
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#ifdef ZEND_WIN32
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fflush(stderr);
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#endif
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}
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if (original_sigsegv_handler!=zend_handle_sigsegv) {
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original_sigsegv_handler(dummy);
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}
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}
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/* }}} */
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#endif
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static void zend_extension_activator(zend_extension *extension) /* {{{ */
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{
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if (extension->activate) {
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extension->activate();
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}
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}
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/* }}} */
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static void zend_extension_deactivator(zend_extension *extension) /* {{{ */
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{
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if (extension->deactivate) {
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extension->deactivate();
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}
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}
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/* }}} */
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static int clean_non_persistent_constant_full(zval *zv) /* {{{ */
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{
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zend_constant *c = Z_PTR_P(zv);
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return (ZEND_CONSTANT_FLAGS(c) & CONST_PERSISTENT) ? ZEND_HASH_APPLY_KEEP : ZEND_HASH_APPLY_REMOVE;
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}
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/* }}} */
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static int clean_non_persistent_function_full(zval *zv) /* {{{ */
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{
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zend_function *function = Z_PTR_P(zv);
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return (function->type == ZEND_INTERNAL_FUNCTION) ? ZEND_HASH_APPLY_KEEP : ZEND_HASH_APPLY_REMOVE;
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}
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/* }}} */
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static int clean_non_persistent_class_full(zval *zv) /* {{{ */
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{
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zend_class_entry *ce = Z_PTR_P(zv);
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return (ce->type == ZEND_INTERNAL_CLASS) ? ZEND_HASH_APPLY_KEEP : ZEND_HASH_APPLY_REMOVE;
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}
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/* }}} */
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void init_executor(void) /* {{{ */
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{
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zend_init_fpu();
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ZVAL_NULL(&EG(uninitialized_zval));
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ZVAL_ERROR(&EG(error_zval));
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/* destroys stack frame, therefore makes core dumps worthless */
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#if 0&&ZEND_DEBUG
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original_sigsegv_handler = signal(SIGSEGV, zend_handle_sigsegv);
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#endif
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EG(symtable_cache_ptr) = EG(symtable_cache);
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EG(symtable_cache_limit) = EG(symtable_cache) + SYMTABLE_CACHE_SIZE;
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EG(no_extensions) = 0;
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EG(function_table) = CG(function_table);
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EG(class_table) = CG(class_table);
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EG(in_autoload) = NULL;
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EG(autoload_func) = NULL;
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EG(error_handling) = EH_NORMAL;
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EG(flags) = EG_FLAGS_INITIAL;
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zend_vm_stack_init();
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zend_hash_init(&EG(symbol_table), 64, NULL, ZVAL_PTR_DTOR, 0);
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zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_activator);
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zend_hash_init(&EG(included_files), 8, NULL, NULL, 0);
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EG(ticks_count) = 0;
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ZVAL_UNDEF(&EG(user_error_handler));
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ZVAL_UNDEF(&EG(user_exception_handler));
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EG(current_execute_data) = NULL;
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zend_stack_init(&EG(user_error_handlers_error_reporting), sizeof(int));
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zend_stack_init(&EG(user_error_handlers), sizeof(zval));
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zend_stack_init(&EG(user_exception_handlers), sizeof(zval));
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zend_objects_store_init(&EG(objects_store), 1024);
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EG(full_tables_cleanup) = 0;
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EG(vm_interrupt) = 0;
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EG(timed_out) = 0;
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EG(exception) = NULL;
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EG(prev_exception) = NULL;
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EG(fake_scope) = NULL;
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EG(ht_iterators_count) = sizeof(EG(ht_iterators_slots)) / sizeof(HashTableIterator);
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EG(ht_iterators_used) = 0;
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EG(ht_iterators) = EG(ht_iterators_slots);
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memset(EG(ht_iterators), 0, sizeof(EG(ht_iterators_slots)));
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EG(persistent_constants_count) = EG(zend_constants)->nNumUsed;
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EG(persistent_functions_count) = EG(function_table)->nNumUsed;
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EG(persistent_classes_count) = EG(class_table)->nNumUsed;
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zend_weakrefs_init();
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EG(active) = 1;
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}
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/* }}} */
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static int zval_call_destructor(zval *zv) /* {{{ */
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{
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if (Z_TYPE_P(zv) == IS_INDIRECT) {
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zv = Z_INDIRECT_P(zv);
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}
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if (Z_TYPE_P(zv) == IS_OBJECT && Z_REFCOUNT_P(zv) == 1) {
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return ZEND_HASH_APPLY_REMOVE;
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} else {
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return ZEND_HASH_APPLY_KEEP;
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}
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}
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/* }}} */
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static void zend_unclean_zval_ptr_dtor(zval *zv) /* {{{ */
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{
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if (Z_TYPE_P(zv) == IS_INDIRECT) {
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zv = Z_INDIRECT_P(zv);
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}
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i_zval_ptr_dtor(zv);
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}
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/* }}} */
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static ZEND_COLD void zend_throw_or_error(int fetch_type, zend_class_entry *exception_ce, const char *format, ...) /* {{{ */
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{
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va_list va;
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char *message = NULL;
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va_start(va, format);
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zend_vspprintf(&message, 0, format, va);
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if (fetch_type & ZEND_FETCH_CLASS_EXCEPTION) {
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zend_throw_error(exception_ce, "%s", message);
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} else {
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zend_error(E_ERROR, "%s", message);
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}
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efree(message);
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va_end(va);
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}
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/* }}} */
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void shutdown_destructors(void) /* {{{ */
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{
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if (CG(unclean_shutdown)) {
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EG(symbol_table).pDestructor = zend_unclean_zval_ptr_dtor;
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}
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zend_try {
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uint32_t symbols;
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do {
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symbols = zend_hash_num_elements(&EG(symbol_table));
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zend_hash_reverse_apply(&EG(symbol_table), (apply_func_t) zval_call_destructor);
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} while (symbols != zend_hash_num_elements(&EG(symbol_table)));
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zend_objects_store_call_destructors(&EG(objects_store));
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} zend_catch {
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/* if we couldn't destruct cleanly, mark all objects as destructed anyway */
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zend_objects_store_mark_destructed(&EG(objects_store));
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} zend_end_try();
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}
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/* }}} */
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void shutdown_executor(void) /* {{{ */
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{
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zend_string *key;
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zval *zv;
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#if ZEND_DEBUG
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zend_bool fast_shutdown = 0;
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#else
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zend_bool fast_shutdown = is_zend_mm() && !EG(full_tables_cleanup);
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#endif
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zend_try {
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zend_llist_destroy(&CG(open_files));
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} zend_end_try();
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EG(flags) |= EG_FLAGS_IN_RESOURCE_SHUTDOWN;
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zend_try {
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zend_close_rsrc_list(&EG(regular_list));
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} zend_end_try();
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/* No PHP callback functions should be called after this point. */
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EG(active) = 0;
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if (!fast_shutdown) {
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zend_hash_graceful_reverse_destroy(&EG(symbol_table));
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/* Release static properties and static variables prior to the final GC run,
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* as they may hold GC roots. */
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ZEND_HASH_REVERSE_FOREACH_VAL(EG(function_table), zv) {
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zend_op_array *op_array = Z_PTR_P(zv);
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if (op_array->type == ZEND_INTERNAL_FUNCTION) {
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break;
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}
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if (op_array->static_variables) {
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HashTable *ht = ZEND_MAP_PTR_GET(op_array->static_variables_ptr);
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if (ht) {
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ZEND_ASSERT(GC_REFCOUNT(ht) == 1);
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zend_array_destroy(ht);
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ZEND_MAP_PTR_SET(op_array->static_variables_ptr, NULL);
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}
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}
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} ZEND_HASH_FOREACH_END();
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ZEND_HASH_REVERSE_FOREACH_VAL(EG(class_table), zv) {
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zend_class_entry *ce = Z_PTR_P(zv);
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if (ce->default_static_members_count) {
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zend_cleanup_internal_class_data(ce);
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}
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if (ce->ce_flags & ZEND_HAS_STATIC_IN_METHODS) {
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zend_op_array *op_array;
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ZEND_HASH_FOREACH_PTR(&ce->function_table, op_array) {
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if (op_array->type == ZEND_USER_FUNCTION) {
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if (op_array->static_variables) {
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HashTable *ht = ZEND_MAP_PTR_GET(op_array->static_variables_ptr);
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if (ht) {
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if (!(GC_FLAGS(ht) & IS_ARRAY_IMMUTABLE) && GC_DELREF(ht) == 0) {
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zend_array_destroy(ht);
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}
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ZEND_MAP_PTR_SET(op_array->static_variables_ptr, NULL);
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}
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}
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}
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} ZEND_HASH_FOREACH_END();
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}
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} ZEND_HASH_FOREACH_END();
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|
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/* Also release error and exception handlers, which may hold objects. */
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if (Z_TYPE(EG(user_error_handler)) != IS_UNDEF) {
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zval_ptr_dtor(&EG(user_error_handler));
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ZVAL_UNDEF(&EG(user_error_handler));
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}
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if (Z_TYPE(EG(user_exception_handler)) != IS_UNDEF) {
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zval_ptr_dtor(&EG(user_exception_handler));
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ZVAL_UNDEF(&EG(user_exception_handler));
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}
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zend_stack_clean(&EG(user_error_handlers_error_reporting), NULL, 1);
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zend_stack_clean(&EG(user_error_handlers), (void (*)(void *))ZVAL_PTR_DTOR, 1);
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zend_stack_clean(&EG(user_exception_handlers), (void (*)(void *))ZVAL_PTR_DTOR, 1);
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|
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#if ZEND_DEBUG
|
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if (gc_enabled() && !CG(unclean_shutdown)) {
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gc_collect_cycles();
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}
|
|
#endif
|
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}
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zend_objects_store_free_object_storage(&EG(objects_store), fast_shutdown);
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|
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zend_weakrefs_shutdown();
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zend_try {
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zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_deactivator);
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} zend_end_try();
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|
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if (fast_shutdown) {
|
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/* Fast Request Shutdown
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* =====================
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* Zend Memory Manager frees memory by its own. We don't have to free
|
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* each allocated block separately.
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*/
|
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zend_hash_discard(EG(zend_constants), EG(persistent_constants_count));
|
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zend_hash_discard(EG(function_table), EG(persistent_functions_count));
|
|
zend_hash_discard(EG(class_table), EG(persistent_classes_count));
|
|
zend_cleanup_internal_classes();
|
|
} else {
|
|
zend_vm_stack_destroy();
|
|
|
|
if (EG(full_tables_cleanup)) {
|
|
zend_hash_reverse_apply(EG(zend_constants), clean_non_persistent_constant_full);
|
|
zend_hash_reverse_apply(EG(function_table), clean_non_persistent_function_full);
|
|
zend_hash_reverse_apply(EG(class_table), clean_non_persistent_class_full);
|
|
} else {
|
|
ZEND_HASH_REVERSE_FOREACH_STR_KEY_VAL(EG(zend_constants), key, zv) {
|
|
zend_constant *c = Z_PTR_P(zv);
|
|
if (_idx == EG(persistent_constants_count)) {
|
|
break;
|
|
}
|
|
zval_ptr_dtor_nogc(&c->value);
|
|
if (c->name) {
|
|
zend_string_release_ex(c->name, 0);
|
|
}
|
|
efree(c);
|
|
zend_string_release_ex(key, 0);
|
|
} ZEND_HASH_FOREACH_END_DEL();
|
|
|
|
ZEND_HASH_REVERSE_FOREACH_STR_KEY_VAL(EG(function_table), key, zv) {
|
|
zend_function *func = Z_PTR_P(zv);
|
|
if (_idx == EG(persistent_functions_count)) {
|
|
break;
|
|
}
|
|
destroy_op_array(&func->op_array);
|
|
zend_string_release_ex(key, 0);
|
|
} ZEND_HASH_FOREACH_END_DEL();
|
|
|
|
ZEND_HASH_REVERSE_FOREACH_STR_KEY_VAL(EG(class_table), key, zv) {
|
|
if (_idx == EG(persistent_classes_count)) {
|
|
break;
|
|
}
|
|
destroy_zend_class(zv);
|
|
zend_string_release_ex(key, 0);
|
|
} ZEND_HASH_FOREACH_END_DEL();
|
|
}
|
|
|
|
while (EG(symtable_cache_ptr) > EG(symtable_cache)) {
|
|
EG(symtable_cache_ptr)--;
|
|
zend_hash_destroy(*EG(symtable_cache_ptr));
|
|
FREE_HASHTABLE(*EG(symtable_cache_ptr));
|
|
}
|
|
|
|
zend_hash_destroy(&EG(included_files));
|
|
|
|
zend_stack_destroy(&EG(user_error_handlers_error_reporting));
|
|
zend_stack_destroy(&EG(user_error_handlers));
|
|
zend_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));
|
|
}
|
|
|
|
if (EG(ht_iterators) != EG(ht_iterators_slots)) {
|
|
efree(EG(ht_iterators));
|
|
}
|
|
}
|
|
|
|
#if ZEND_DEBUG
|
|
if (EG(ht_iterators_used) && !CG(unclean_shutdown)) {
|
|
zend_error(E_WARNING, "Leaked %" PRIu32 " hashtable iterators", EG(ht_iterators_used));
|
|
}
|
|
#endif
|
|
|
|
EG(ht_iterators_used) = 0;
|
|
|
|
zend_shutdown_fpu();
|
|
}
|
|
/* }}} */
|
|
|
|
/* return class name and "::" or "". */
|
|
ZEND_API const char *get_active_class_name(const char **space) /* {{{ */
|
|
{
|
|
zend_function *func;
|
|
|
|
if (!zend_is_executing()) {
|
|
if (space) {
|
|
*space = "";
|
|
}
|
|
return "";
|
|
}
|
|
|
|
func = EG(current_execute_data)->func;
|
|
switch (func->type) {
|
|
case ZEND_USER_FUNCTION:
|
|
case ZEND_INTERNAL_FUNCTION:
|
|
{
|
|
zend_class_entry *ce = func->common.scope;
|
|
|
|
if (space) {
|
|
*space = ce ? "::" : "";
|
|
}
|
|
return ce ? ZSTR_VAL(ce->name) : "";
|
|
}
|
|
default:
|
|
if (space) {
|
|
*space = "";
|
|
}
|
|
return "";
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API const char *get_active_function_name(void) /* {{{ */
|
|
{
|
|
zend_function *func;
|
|
|
|
if (!zend_is_executing()) {
|
|
return NULL;
|
|
}
|
|
func = EG(current_execute_data)->func;
|
|
switch (func->type) {
|
|
case ZEND_USER_FUNCTION: {
|
|
zend_string *function_name = func->common.function_name;
|
|
|
|
if (function_name) {
|
|
return ZSTR_VAL(function_name);
|
|
} else {
|
|
return "main";
|
|
}
|
|
}
|
|
break;
|
|
case ZEND_INTERNAL_FUNCTION:
|
|
return ZSTR_VAL(func->common.function_name);
|
|
break;
|
|
default:
|
|
return NULL;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API const char *zend_get_executed_filename(void) /* {{{ */
|
|
{
|
|
zend_execute_data *ex = EG(current_execute_data);
|
|
|
|
while (ex && (!ex->func || !ZEND_USER_CODE(ex->func->type))) {
|
|
ex = ex->prev_execute_data;
|
|
}
|
|
if (ex) {
|
|
return ZSTR_VAL(ex->func->op_array.filename);
|
|
} else {
|
|
return "[no active file]";
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API zend_string *zend_get_executed_filename_ex(void) /* {{{ */
|
|
{
|
|
zend_execute_data *ex = EG(current_execute_data);
|
|
|
|
while (ex && (!ex->func || !ZEND_USER_CODE(ex->func->type))) {
|
|
ex = ex->prev_execute_data;
|
|
}
|
|
if (ex) {
|
|
return ex->func->op_array.filename;
|
|
} else {
|
|
return NULL;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API uint32_t zend_get_executed_lineno(void) /* {{{ */
|
|
{
|
|
zend_execute_data *ex = EG(current_execute_data);
|
|
|
|
while (ex && (!ex->func || !ZEND_USER_CODE(ex->func->type))) {
|
|
ex = ex->prev_execute_data;
|
|
}
|
|
if (ex) {
|
|
if (EG(exception) && ex->opline->opcode == ZEND_HANDLE_EXCEPTION &&
|
|
ex->opline->lineno == 0 && EG(opline_before_exception)) {
|
|
return EG(opline_before_exception)->lineno;
|
|
}
|
|
return ex->opline->lineno;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API zend_class_entry *zend_get_executed_scope(void) /* {{{ */
|
|
{
|
|
zend_execute_data *ex = EG(current_execute_data);
|
|
|
|
while (1) {
|
|
if (!ex) {
|
|
return NULL;
|
|
} else if (ex->func && (ZEND_USER_CODE(ex->func->type) || ex->func->common.scope)) {
|
|
return ex->func->common.scope;
|
|
}
|
|
ex = ex->prev_execute_data;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API zend_bool zend_is_executing(void) /* {{{ */
|
|
{
|
|
return EG(current_execute_data) != 0;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API ZEND_COLD int zend_use_undefined_constant(zend_string *name, zend_ast_attr attr, zval *result) /* {{{ */
|
|
{
|
|
char *colon;
|
|
|
|
if (UNEXPECTED(EG(exception))) {
|
|
return FAILURE;
|
|
} else if ((colon = (char*)zend_memrchr(ZSTR_VAL(name), ':', ZSTR_LEN(name)))) {
|
|
zend_throw_error(NULL, "Undefined class constant '%s'", ZSTR_VAL(name));
|
|
return FAILURE;
|
|
} else {
|
|
zend_throw_error(NULL, "Undefined constant '%s'", ZSTR_VAL(name));
|
|
return FAILURE;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API int zval_update_constant_ex(zval *p, zend_class_entry *scope) /* {{{ */
|
|
{
|
|
if (Z_TYPE_P(p) == IS_CONSTANT_AST) {
|
|
zend_ast *ast = Z_ASTVAL_P(p);
|
|
|
|
if (ast->kind == ZEND_AST_CONSTANT) {
|
|
zend_string *name = zend_ast_get_constant_name(ast);
|
|
zval *zv = zend_get_constant_ex(name, scope, ast->attr);
|
|
|
|
if (UNEXPECTED(zv == NULL)) {
|
|
return zend_use_undefined_constant(name, ast->attr, p);
|
|
}
|
|
zval_ptr_dtor_nogc(p);
|
|
ZVAL_COPY_OR_DUP(p, zv);
|
|
} else {
|
|
zval tmp;
|
|
|
|
if (UNEXPECTED(zend_ast_evaluate(&tmp, ast, scope) != SUCCESS)) {
|
|
return FAILURE;
|
|
}
|
|
zval_ptr_dtor_nogc(p);
|
|
ZVAL_COPY_VALUE(p, &tmp);
|
|
}
|
|
}
|
|
return SUCCESS;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API int zval_update_constant(zval *pp) /* {{{ */
|
|
{
|
|
return zval_update_constant_ex(pp, EG(current_execute_data) ? zend_get_executed_scope() : CG(active_class_entry));
|
|
}
|
|
/* }}} */
|
|
|
|
int _call_user_function_ex(zval *object, zval *function_name, zval *retval_ptr, uint32_t param_count, zval params[], int no_separation) /* {{{ */
|
|
{
|
|
zend_fcall_info fci;
|
|
|
|
fci.size = sizeof(fci);
|
|
fci.object = object ? Z_OBJ_P(object) : NULL;
|
|
ZVAL_COPY_VALUE(&fci.function_name, function_name);
|
|
fci.retval = retval_ptr;
|
|
fci.param_count = param_count;
|
|
fci.params = params;
|
|
fci.no_separation = (zend_bool) no_separation;
|
|
|
|
return zend_call_function(&fci, NULL);
|
|
}
|
|
/* }}} */
|
|
|
|
int zend_call_function(zend_fcall_info *fci, zend_fcall_info_cache *fci_cache) /* {{{ */
|
|
{
|
|
uint32_t i;
|
|
zend_execute_data *call, dummy_execute_data;
|
|
zend_fcall_info_cache fci_cache_local;
|
|
zend_function *func;
|
|
uint32_t call_info;
|
|
void *object_or_called_scope;
|
|
|
|
ZVAL_UNDEF(fci->retval);
|
|
|
|
if (!EG(active)) {
|
|
return FAILURE; /* executor is already inactive */
|
|
}
|
|
|
|
if (EG(exception)) {
|
|
return FAILURE; /* we would result in an instable executor otherwise */
|
|
}
|
|
|
|
ZEND_ASSERT(fci->size == sizeof(zend_fcall_info));
|
|
|
|
/* Initialize execute_data */
|
|
if (!EG(current_execute_data)) {
|
|
/* 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(&dummy_execute_data, 0, sizeof(zend_execute_data));
|
|
EG(current_execute_data) = &dummy_execute_data;
|
|
} else if (EG(current_execute_data)->func &&
|
|
ZEND_USER_CODE(EG(current_execute_data)->func->common.type) &&
|
|
EG(current_execute_data)->opline->opcode != ZEND_DO_FCALL &&
|
|
EG(current_execute_data)->opline->opcode != ZEND_DO_ICALL &&
|
|
EG(current_execute_data)->opline->opcode != ZEND_DO_UCALL &&
|
|
EG(current_execute_data)->opline->opcode != ZEND_DO_FCALL_BY_NAME) {
|
|
/* Insert fake frame in case of include or magic calls */
|
|
dummy_execute_data = *EG(current_execute_data);
|
|
dummy_execute_data.prev_execute_data = EG(current_execute_data);
|
|
dummy_execute_data.call = NULL;
|
|
dummy_execute_data.opline = NULL;
|
|
dummy_execute_data.func = NULL;
|
|
EG(current_execute_data) = &dummy_execute_data;
|
|
}
|
|
|
|
if (!fci_cache || !fci_cache->function_handler) {
|
|
char *error = NULL;
|
|
|
|
if (!fci_cache) {
|
|
fci_cache = &fci_cache_local;
|
|
}
|
|
|
|
if (!zend_is_callable_ex(&fci->function_name, fci->object, IS_CALLABLE_CHECK_SILENT, NULL, fci_cache, &error)) {
|
|
if (error) {
|
|
zend_string *callable_name
|
|
= zend_get_callable_name_ex(&fci->function_name, fci->object);
|
|
zend_error(E_WARNING, "Invalid callback %s, %s", ZSTR_VAL(callable_name), error);
|
|
efree(error);
|
|
zend_string_release_ex(callable_name, 0);
|
|
}
|
|
if (EG(current_execute_data) == &dummy_execute_data) {
|
|
EG(current_execute_data) = dummy_execute_data.prev_execute_data;
|
|
}
|
|
return FAILURE;
|
|
}
|
|
|
|
ZEND_ASSERT(!error);
|
|
}
|
|
|
|
func = fci_cache->function_handler;
|
|
if ((func->common.fn_flags & ZEND_ACC_STATIC) || !fci_cache->object) {
|
|
fci->object = NULL;
|
|
object_or_called_scope = fci_cache->called_scope;
|
|
call_info = ZEND_CALL_TOP_FUNCTION | ZEND_CALL_DYNAMIC;
|
|
} else {
|
|
fci->object = fci_cache->object;
|
|
object_or_called_scope = fci->object;
|
|
call_info = ZEND_CALL_TOP_FUNCTION | ZEND_CALL_DYNAMIC | ZEND_CALL_HAS_THIS;
|
|
}
|
|
|
|
call = zend_vm_stack_push_call_frame(call_info,
|
|
func, fci->param_count, object_or_called_scope);
|
|
|
|
if (UNEXPECTED(func->common.fn_flags & ZEND_ACC_DEPRECATED)) {
|
|
zend_error(E_DEPRECATED, "Function %s%s%s() is deprecated",
|
|
func->common.scope ? ZSTR_VAL(func->common.scope->name) : "",
|
|
func->common.scope ? "::" : "",
|
|
ZSTR_VAL(func->common.function_name));
|
|
if (UNEXPECTED(EG(exception))) {
|
|
zend_vm_stack_free_call_frame(call);
|
|
if (EG(current_execute_data) == &dummy_execute_data) {
|
|
EG(current_execute_data) = dummy_execute_data.prev_execute_data;
|
|
zend_rethrow_exception(EG(current_execute_data));
|
|
}
|
|
return FAILURE;
|
|
}
|
|
}
|
|
|
|
for (i=0; i<fci->param_count; i++) {
|
|
zval *param;
|
|
zval *arg = &fci->params[i];
|
|
|
|
if (ARG_SHOULD_BE_SENT_BY_REF(func, i + 1)) {
|
|
if (UNEXPECTED(!Z_ISREF_P(arg))) {
|
|
if (!fci->no_separation) {
|
|
/* Separation is enabled -- create a ref */
|
|
ZVAL_NEW_REF(arg, arg);
|
|
} else if (!ARG_MAY_BE_SENT_BY_REF(func, i + 1)) {
|
|
/* By-value send is not allowed -- emit a warning,
|
|
* but still perform the call with a by-value send. */
|
|
zend_error(E_WARNING,
|
|
"Parameter %d to %s%s%s() expected to be a reference, value given", i+1,
|
|
func->common.scope ? ZSTR_VAL(func->common.scope->name) : "",
|
|
func->common.scope ? "::" : "",
|
|
ZSTR_VAL(func->common.function_name));
|
|
if (UNEXPECTED(EG(exception))) {
|
|
ZEND_CALL_NUM_ARGS(call) = i;
|
|
zend_vm_stack_free_args(call);
|
|
zend_vm_stack_free_call_frame(call);
|
|
if (EG(current_execute_data) == &dummy_execute_data) {
|
|
EG(current_execute_data) = dummy_execute_data.prev_execute_data;
|
|
}
|
|
return FAILURE;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
if (Z_ISREF_P(arg) &&
|
|
!(func->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE)) {
|
|
/* don't separate references for __call */
|
|
arg = Z_REFVAL_P(arg);
|
|
}
|
|
}
|
|
|
|
param = ZEND_CALL_ARG(call, i+1);
|
|
ZVAL_COPY(param, arg);
|
|
}
|
|
|
|
if (UNEXPECTED(func->op_array.fn_flags & ZEND_ACC_CLOSURE)) {
|
|
uint32_t call_info;
|
|
|
|
GC_ADDREF(ZEND_CLOSURE_OBJECT(func));
|
|
call_info = ZEND_CALL_CLOSURE;
|
|
if (func->common.fn_flags & ZEND_ACC_FAKE_CLOSURE) {
|
|
call_info |= ZEND_CALL_FAKE_CLOSURE;
|
|
}
|
|
ZEND_ADD_CALL_FLAG(call, call_info);
|
|
}
|
|
|
|
if (func->type == ZEND_USER_FUNCTION) {
|
|
int call_via_handler = (func->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE) != 0;
|
|
const zend_op *current_opline_before_exception = EG(opline_before_exception);
|
|
|
|
zend_init_func_execute_data(call, &func->op_array, fci->retval);
|
|
zend_execute_ex(call);
|
|
EG(opline_before_exception) = current_opline_before_exception;
|
|
if (call_via_handler) {
|
|
/* We must re-initialize function again */
|
|
fci_cache->function_handler = NULL;
|
|
}
|
|
} else {
|
|
int call_via_handler = (func->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE) != 0;
|
|
|
|
ZEND_ASSERT(func->type == ZEND_INTERNAL_FUNCTION);
|
|
ZVAL_NULL(fci->retval);
|
|
call->prev_execute_data = EG(current_execute_data);
|
|
EG(current_execute_data) = call;
|
|
if (EXPECTED(zend_execute_internal == NULL)) {
|
|
/* saves one function call if zend_execute_internal is not used */
|
|
func->internal_function.handler(call, fci->retval);
|
|
} else {
|
|
zend_execute_internal(call, fci->retval);
|
|
}
|
|
EG(current_execute_data) = call->prev_execute_data;
|
|
zend_vm_stack_free_args(call);
|
|
|
|
if (EG(exception)) {
|
|
zval_ptr_dtor(fci->retval);
|
|
ZVAL_UNDEF(fci->retval);
|
|
}
|
|
|
|
if (call_via_handler) {
|
|
/* We must re-initialize function again */
|
|
fci_cache->function_handler = NULL;
|
|
}
|
|
}
|
|
|
|
zend_vm_stack_free_call_frame(call);
|
|
|
|
if (EG(current_execute_data) == &dummy_execute_data) {
|
|
EG(current_execute_data) = dummy_execute_data.prev_execute_data;
|
|
}
|
|
|
|
if (UNEXPECTED(EG(exception))) {
|
|
if (UNEXPECTED(!EG(current_execute_data))) {
|
|
zend_throw_exception_internal(NULL);
|
|
} else if (EG(current_execute_data)->func &&
|
|
ZEND_USER_CODE(EG(current_execute_data)->func->common.type)) {
|
|
zend_rethrow_exception(EG(current_execute_data));
|
|
}
|
|
}
|
|
|
|
return SUCCESS;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API zend_class_entry *zend_lookup_class_ex(zend_string *name, zend_string *key, uint32_t flags) /* {{{ */
|
|
{
|
|
zend_class_entry *ce = NULL;
|
|
zval args[1], *zv;
|
|
zval local_retval;
|
|
zend_string *lc_name;
|
|
zend_fcall_info fcall_info;
|
|
zend_fcall_info_cache fcall_cache;
|
|
|
|
if (key) {
|
|
lc_name = key;
|
|
} else {
|
|
if (name == NULL || !ZSTR_LEN(name)) {
|
|
return NULL;
|
|
}
|
|
|
|
if (ZSTR_VAL(name)[0] == '\\') {
|
|
lc_name = zend_string_alloc(ZSTR_LEN(name) - 1, 0);
|
|
zend_str_tolower_copy(ZSTR_VAL(lc_name), ZSTR_VAL(name) + 1, ZSTR_LEN(name) - 1);
|
|
} else {
|
|
lc_name = zend_string_tolower(name);
|
|
}
|
|
}
|
|
|
|
zv = zend_hash_find(EG(class_table), lc_name);
|
|
if (zv) {
|
|
if (!key) {
|
|
zend_string_release_ex(lc_name, 0);
|
|
}
|
|
ce = (zend_class_entry*)Z_PTR_P(zv);
|
|
if (UNEXPECTED(!(ce->ce_flags & ZEND_ACC_LINKED))) {
|
|
if ((flags & ZEND_FETCH_CLASS_ALLOW_UNLINKED) ||
|
|
((flags & ZEND_FETCH_CLASS_ALLOW_NEARLY_LINKED) &&
|
|
(ce->ce_flags & ZEND_ACC_NEARLY_LINKED))) {
|
|
ce->ce_flags |= ZEND_ACC_HAS_UNLINKED_USES;
|
|
return ce;
|
|
}
|
|
return NULL;
|
|
}
|
|
return ce;
|
|
}
|
|
|
|
/* The compiler is not-reentrant. Make sure we __autoload() only during run-time
|
|
* (doesn't impact functionality of __autoload()
|
|
*/
|
|
if ((flags & ZEND_FETCH_CLASS_NO_AUTOLOAD) || zend_is_compiling()) {
|
|
if (!key) {
|
|
zend_string_release_ex(lc_name, 0);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
if (!EG(autoload_func)) {
|
|
if (!key) {
|
|
zend_string_release_ex(lc_name, 0);
|
|
}
|
|
return NULL;
|
|
|
|
}
|
|
|
|
/* Verify class name before passing it to __autoload() */
|
|
if (!key && strspn(ZSTR_VAL(name), "0123456789_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377\\") != ZSTR_LEN(name)) {
|
|
zend_string_release_ex(lc_name, 0);
|
|
return NULL;
|
|
}
|
|
|
|
if (EG(in_autoload) == NULL) {
|
|
ALLOC_HASHTABLE(EG(in_autoload));
|
|
zend_hash_init(EG(in_autoload), 8, NULL, NULL, 0);
|
|
}
|
|
|
|
if (zend_hash_add_empty_element(EG(in_autoload), lc_name) == NULL) {
|
|
if (!key) {
|
|
zend_string_release_ex(lc_name, 0);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
ZVAL_UNDEF(&local_retval);
|
|
|
|
if (ZSTR_VAL(name)[0] == '\\') {
|
|
ZVAL_STRINGL(&args[0], ZSTR_VAL(name) + 1, ZSTR_LEN(name) - 1);
|
|
} else {
|
|
ZVAL_STR_COPY(&args[0], name);
|
|
}
|
|
|
|
fcall_info.size = sizeof(fcall_info);
|
|
ZVAL_STR_COPY(&fcall_info.function_name, EG(autoload_func)->common.function_name);
|
|
fcall_info.retval = &local_retval;
|
|
fcall_info.param_count = 1;
|
|
fcall_info.params = args;
|
|
fcall_info.object = NULL;
|
|
fcall_info.no_separation = 1;
|
|
|
|
fcall_cache.function_handler = EG(autoload_func);
|
|
fcall_cache.called_scope = NULL;
|
|
fcall_cache.object = NULL;
|
|
|
|
zend_exception_save();
|
|
if ((zend_call_function(&fcall_info, &fcall_cache) == SUCCESS) && !EG(exception)) {
|
|
ce = zend_hash_find_ptr(EG(class_table), lc_name);
|
|
}
|
|
zend_exception_restore();
|
|
|
|
zval_ptr_dtor(&args[0]);
|
|
zval_ptr_dtor_str(&fcall_info.function_name);
|
|
|
|
zend_hash_del(EG(in_autoload), lc_name);
|
|
|
|
zval_ptr_dtor(&local_retval);
|
|
|
|
if (!key) {
|
|
zend_string_release_ex(lc_name, 0);
|
|
}
|
|
return ce;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API zend_class_entry *zend_lookup_class(zend_string *name) /* {{{ */
|
|
{
|
|
return zend_lookup_class_ex(name, NULL, 0);
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API zend_class_entry *zend_get_called_scope(zend_execute_data *ex) /* {{{ */
|
|
{
|
|
while (ex) {
|
|
if (Z_TYPE(ex->This) == IS_OBJECT) {
|
|
return Z_OBJCE(ex->This);
|
|
} else if (Z_CE(ex->This)) {
|
|
return Z_CE(ex->This);
|
|
} else if (ex->func) {
|
|
if (ex->func->type != ZEND_INTERNAL_FUNCTION || ex->func->common.scope) {
|
|
return NULL;
|
|
}
|
|
}
|
|
ex = ex->prev_execute_data;
|
|
}
|
|
return NULL;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API zend_object *zend_get_this_object(zend_execute_data *ex) /* {{{ */
|
|
{
|
|
while (ex) {
|
|
if (Z_TYPE(ex->This) == IS_OBJECT) {
|
|
return Z_OBJ(ex->This);
|
|
} else if (ex->func) {
|
|
if (ex->func->type != ZEND_INTERNAL_FUNCTION || ex->func->common.scope) {
|
|
return NULL;
|
|
}
|
|
}
|
|
ex = ex->prev_execute_data;
|
|
}
|
|
return NULL;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API int zend_eval_stringl(const char *str, size_t str_len, zval *retval_ptr, const char *string_name) /* {{{ */
|
|
{
|
|
zval pv;
|
|
zend_op_array *new_op_array;
|
|
uint32_t original_compiler_options;
|
|
int retval;
|
|
|
|
if (retval_ptr) {
|
|
ZVAL_NEW_STR(&pv, zend_string_alloc(str_len + sizeof("return ;")-1, 0));
|
|
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 {
|
|
ZVAL_STRINGL(&pv, str, str_len);
|
|
}
|
|
|
|
/*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);
|
|
CG(compiler_options) = original_compiler_options;
|
|
|
|
if (new_op_array) {
|
|
zval local_retval;
|
|
|
|
EG(no_extensions)=1;
|
|
|
|
new_op_array->scope = zend_get_executed_scope();
|
|
|
|
zend_try {
|
|
ZVAL_UNDEF(&local_retval);
|
|
zend_execute(new_op_array, &local_retval);
|
|
} zend_catch {
|
|
destroy_op_array(new_op_array);
|
|
efree_size(new_op_array, sizeof(zend_op_array));
|
|
zend_bailout();
|
|
} zend_end_try();
|
|
|
|
if (Z_TYPE(local_retval) != IS_UNDEF) {
|
|
if (retval_ptr) {
|
|
ZVAL_COPY_VALUE(retval_ptr, &local_retval);
|
|
} else {
|
|
zval_ptr_dtor(&local_retval);
|
|
}
|
|
} else {
|
|
if (retval_ptr) {
|
|
ZVAL_NULL(retval_ptr);
|
|
}
|
|
}
|
|
|
|
EG(no_extensions)=0;
|
|
destroy_op_array(new_op_array);
|
|
efree_size(new_op_array, sizeof(zend_op_array));
|
|
retval = SUCCESS;
|
|
} else {
|
|
retval = FAILURE;
|
|
}
|
|
zval_ptr_dtor_str(&pv);
|
|
return retval;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API int zend_eval_string(const char *str, zval *retval_ptr, const char *string_name) /* {{{ */
|
|
{
|
|
return zend_eval_stringl(str, strlen(str), retval_ptr, string_name);
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API int zend_eval_stringl_ex(const char *str, size_t str_len, zval *retval_ptr, const char *string_name, int handle_exceptions) /* {{{ */
|
|
{
|
|
int result;
|
|
|
|
result = zend_eval_stringl(str, str_len, retval_ptr, string_name);
|
|
if (handle_exceptions && EG(exception)) {
|
|
zend_exception_error(EG(exception), E_ERROR);
|
|
result = FAILURE;
|
|
}
|
|
return result;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API int zend_eval_string_ex(const char *str, zval *retval_ptr, const char *string_name, int handle_exceptions) /* {{{ */
|
|
{
|
|
return zend_eval_stringl_ex(str, strlen(str), retval_ptr, string_name, handle_exceptions);
|
|
}
|
|
/* }}} */
|
|
|
|
static void zend_set_timeout_ex(zend_long seconds, int reset_signals);
|
|
|
|
ZEND_API ZEND_NORETURN void ZEND_FASTCALL zend_timeout(int dummy) /* {{{ */
|
|
{
|
|
#if defined(PHP_WIN32)
|
|
# ifndef ZTS
|
|
/* No action is needed if we're timed out because zero seconds are
|
|
just ignored. Also, the hard timeout needs to be respected. If the
|
|
timer is not restarted properly, it could hang in the shutdown
|
|
function. */
|
|
if (EG(hard_timeout) > 0) {
|
|
EG(timed_out) = 0;
|
|
zend_set_timeout_ex(EG(hard_timeout), 1);
|
|
/* XXX Abused, introduce an additional flag if the value needs to be kept. */
|
|
EG(hard_timeout) = 0;
|
|
}
|
|
# endif
|
|
#else
|
|
EG(timed_out) = 0;
|
|
zend_set_timeout_ex(0, 1);
|
|
#endif
|
|
|
|
zend_error_noreturn(E_ERROR, "Maximum execution time of " ZEND_LONG_FMT " second%s exceeded", EG(timeout_seconds), EG(timeout_seconds) == 1 ? "" : "s");
|
|
}
|
|
/* }}} */
|
|
|
|
#ifndef ZEND_WIN32
|
|
static void zend_timeout_handler(int dummy) /* {{{ */
|
|
{
|
|
#ifndef ZTS
|
|
if (EG(timed_out)) {
|
|
/* Die on hard timeout */
|
|
const char *error_filename = NULL;
|
|
uint32_t error_lineno = 0;
|
|
char log_buffer[2048];
|
|
int output_len = 0;
|
|
|
|
if (zend_is_compiling()) {
|
|
error_filename = ZSTR_VAL(zend_get_compiled_filename());
|
|
error_lineno = zend_get_compiled_lineno();
|
|
} else if (zend_is_executing()) {
|
|
error_filename = zend_get_executed_filename();
|
|
if (error_filename[0] == '[') { /* [no active file] */
|
|
error_filename = NULL;
|
|
error_lineno = 0;
|
|
} else {
|
|
error_lineno = zend_get_executed_lineno();
|
|
}
|
|
}
|
|
if (!error_filename) {
|
|
error_filename = "Unknown";
|
|
}
|
|
|
|
output_len = snprintf(log_buffer, sizeof(log_buffer), "\nFatal error: Maximum execution time of " ZEND_LONG_FMT "+" ZEND_LONG_FMT " seconds exceeded (terminated) in %s on line %d\n", EG(timeout_seconds), EG(hard_timeout), error_filename, error_lineno);
|
|
if (output_len > 0) {
|
|
zend_quiet_write(2, log_buffer, MIN(output_len, sizeof(log_buffer)));
|
|
}
|
|
_exit(124);
|
|
}
|
|
#endif
|
|
|
|
if (zend_on_timeout) {
|
|
#ifdef ZEND_SIGNALS
|
|
/*
|
|
We got here because we got a timeout signal, so we are in a signal handler
|
|
at this point. However, we want to be able to timeout any user-supplied
|
|
shutdown functions, so pretend we are not in a signal handler while we are
|
|
calling these
|
|
*/
|
|
SIGG(running) = 0;
|
|
#endif
|
|
zend_on_timeout(EG(timeout_seconds));
|
|
}
|
|
|
|
EG(timed_out) = 1;
|
|
EG(vm_interrupt) = 1;
|
|
|
|
#ifndef ZTS
|
|
if (EG(hard_timeout) > 0) {
|
|
/* Set hard timeout */
|
|
zend_set_timeout_ex(EG(hard_timeout), 1);
|
|
}
|
|
#endif
|
|
}
|
|
/* }}} */
|
|
#endif
|
|
|
|
#ifdef ZEND_WIN32
|
|
VOID CALLBACK tq_timer_cb(PVOID arg, BOOLEAN timed_out)
|
|
{
|
|
zend_executor_globals *eg;
|
|
|
|
/* The doc states it'll be always true, however it theoretically
|
|
could be FALSE when the thread was signaled. */
|
|
if (!timed_out) {
|
|
return;
|
|
}
|
|
|
|
eg = (zend_executor_globals *)arg;
|
|
eg->timed_out = 1;
|
|
eg->vm_interrupt = 1;
|
|
}
|
|
#endif
|
|
|
|
/* This one doesn't exists on QNX */
|
|
#ifndef SIGPROF
|
|
#define SIGPROF 27
|
|
#endif
|
|
|
|
static void zend_set_timeout_ex(zend_long seconds, int reset_signals) /* {{{ */
|
|
{
|
|
#ifdef ZEND_WIN32
|
|
zend_executor_globals *eg;
|
|
|
|
if(!seconds) {
|
|
return;
|
|
}
|
|
|
|
/* Don't use ChangeTimerQueueTimer() as it will not restart an expired
|
|
timer, so we could end up with just an ignored timeout. Instead
|
|
delete and recreate. */
|
|
if (NULL != tq_timer) {
|
|
if (!DeleteTimerQueueTimer(NULL, tq_timer, INVALID_HANDLE_VALUE)) {
|
|
tq_timer = NULL;
|
|
zend_error_noreturn(E_ERROR, "Could not delete queued timer");
|
|
return;
|
|
}
|
|
tq_timer = NULL;
|
|
}
|
|
|
|
/* XXX passing NULL means the default timer queue provided by the system is used */
|
|
eg = ZEND_MODULE_GLOBALS_BULK(executor);
|
|
if (!CreateTimerQueueTimer(&tq_timer, NULL, (WAITORTIMERCALLBACK)tq_timer_cb, (VOID*)eg, seconds*1000, 0, WT_EXECUTEONLYONCE)) {
|
|
tq_timer = NULL;
|
|
zend_error_noreturn(E_ERROR, "Could not queue new timer");
|
|
return;
|
|
}
|
|
#elif defined(HAVE_SETITIMER)
|
|
{
|
|
struct itimerval t_r; /* timeout requested */
|
|
int signo;
|
|
|
|
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);
|
|
}
|
|
signo = SIGALRM;
|
|
# else
|
|
setitimer(ITIMER_PROF, &t_r, NULL);
|
|
}
|
|
signo = SIGPROF;
|
|
# endif
|
|
|
|
if (reset_signals) {
|
|
# ifdef ZEND_SIGNALS
|
|
zend_signal(signo, zend_timeout_handler);
|
|
# else
|
|
sigset_t sigset;
|
|
# ifdef HAVE_SIGACTION
|
|
struct sigaction act;
|
|
|
|
act.sa_handler = zend_timeout_handler;
|
|
sigemptyset(&act.sa_mask);
|
|
act.sa_flags = SA_RESETHAND | SA_NODEFER;
|
|
sigaction(signo, &act, NULL);
|
|
# else
|
|
signal(signo, zend_timeout_handler);
|
|
# endif /* HAVE_SIGACTION */
|
|
sigemptyset(&sigset);
|
|
sigaddset(&sigset, signo);
|
|
sigprocmask(SIG_UNBLOCK, &sigset, NULL);
|
|
# endif /* ZEND_SIGNALS */
|
|
}
|
|
}
|
|
#endif /* HAVE_SETITIMER */
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_set_timeout(zend_long seconds, int reset_signals) /* {{{ */
|
|
{
|
|
|
|
EG(timeout_seconds) = seconds;
|
|
zend_set_timeout_ex(seconds, reset_signals);
|
|
EG(timed_out) = 0;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_unset_timeout(void) /* {{{ */
|
|
{
|
|
#ifdef ZEND_WIN32
|
|
if (NULL != tq_timer) {
|
|
if (!DeleteTimerQueueTimer(NULL, tq_timer, INVALID_HANDLE_VALUE)) {
|
|
EG(timed_out) = 0;
|
|
tq_timer = NULL;
|
|
zend_error_noreturn(E_ERROR, "Could not delete queued timer");
|
|
return;
|
|
}
|
|
tq_timer = NULL;
|
|
}
|
|
#elif defined(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
|
|
EG(timed_out) = 0;
|
|
}
|
|
/* }}} */
|
|
|
|
zend_class_entry *zend_fetch_class(zend_string *class_name, int fetch_type) /* {{{ */
|
|
{
|
|
zend_class_entry *ce, *scope;
|
|
int fetch_sub_type = fetch_type & ZEND_FETCH_CLASS_MASK;
|
|
|
|
check_fetch_type:
|
|
switch (fetch_sub_type) {
|
|
case ZEND_FETCH_CLASS_SELF:
|
|
scope = zend_get_executed_scope();
|
|
if (UNEXPECTED(!scope)) {
|
|
zend_throw_or_error(fetch_type, NULL, "Cannot access self:: when no class scope is active");
|
|
}
|
|
return scope;
|
|
case ZEND_FETCH_CLASS_PARENT:
|
|
scope = zend_get_executed_scope();
|
|
if (UNEXPECTED(!scope)) {
|
|
zend_throw_or_error(fetch_type, NULL, "Cannot access parent:: when no class scope is active");
|
|
return NULL;
|
|
}
|
|
if (UNEXPECTED(!scope->parent)) {
|
|
zend_throw_or_error(fetch_type, NULL, "Cannot access parent:: when current class scope has no parent");
|
|
}
|
|
return scope->parent;
|
|
case ZEND_FETCH_CLASS_STATIC:
|
|
ce = zend_get_called_scope(EG(current_execute_data));
|
|
if (UNEXPECTED(!ce)) {
|
|
zend_throw_or_error(fetch_type, NULL, "Cannot access static:: when no class scope is active");
|
|
return NULL;
|
|
}
|
|
return ce;
|
|
case ZEND_FETCH_CLASS_AUTO: {
|
|
fetch_sub_type = zend_get_class_fetch_type(class_name);
|
|
if (UNEXPECTED(fetch_sub_type != ZEND_FETCH_CLASS_DEFAULT)) {
|
|
goto check_fetch_type;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (fetch_type & ZEND_FETCH_CLASS_NO_AUTOLOAD) {
|
|
return zend_lookup_class_ex(class_name, NULL, fetch_type);
|
|
} else if ((ce = zend_lookup_class_ex(class_name, NULL, fetch_type)) == NULL) {
|
|
if (!(fetch_type & ZEND_FETCH_CLASS_SILENT) && !EG(exception)) {
|
|
if (fetch_sub_type == ZEND_FETCH_CLASS_INTERFACE) {
|
|
zend_throw_or_error(fetch_type, NULL, "Interface '%s' not found", ZSTR_VAL(class_name));
|
|
} else if (fetch_sub_type == ZEND_FETCH_CLASS_TRAIT) {
|
|
zend_throw_or_error(fetch_type, NULL, "Trait '%s' not found", ZSTR_VAL(class_name));
|
|
} else {
|
|
zend_throw_or_error(fetch_type, NULL, "Class '%s' not found", ZSTR_VAL(class_name));
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
return ce;
|
|
}
|
|
/* }}} */
|
|
|
|
zend_class_entry *zend_fetch_class_by_name(zend_string *class_name, zend_string *key, int fetch_type) /* {{{ */
|
|
{
|
|
zend_class_entry *ce;
|
|
|
|
if (fetch_type & ZEND_FETCH_CLASS_NO_AUTOLOAD) {
|
|
return zend_lookup_class_ex(class_name, key, fetch_type);
|
|
} else if ((ce = zend_lookup_class_ex(class_name, key, fetch_type)) == NULL) {
|
|
if (fetch_type & ZEND_FETCH_CLASS_SILENT) {
|
|
return NULL;
|
|
}
|
|
if (EG(exception)) {
|
|
if (!(fetch_type & ZEND_FETCH_CLASS_EXCEPTION)) {
|
|
zend_string *exception_str;
|
|
zval exception_zv;
|
|
ZVAL_OBJ(&exception_zv, EG(exception));
|
|
Z_ADDREF(exception_zv);
|
|
zend_clear_exception();
|
|
exception_str = zval_get_string(&exception_zv);
|
|
zend_error_noreturn(E_ERROR,
|
|
"During class fetch: Uncaught %s", ZSTR_VAL(exception_str));
|
|
}
|
|
return NULL;
|
|
}
|
|
if ((fetch_type & ZEND_FETCH_CLASS_MASK) == ZEND_FETCH_CLASS_INTERFACE) {
|
|
zend_throw_or_error(fetch_type, NULL, "Interface '%s' not found", ZSTR_VAL(class_name));
|
|
} else if ((fetch_type & ZEND_FETCH_CLASS_MASK) == ZEND_FETCH_CLASS_TRAIT) {
|
|
zend_throw_or_error(fetch_type, NULL, "Trait '%s' not found", ZSTR_VAL(class_name));
|
|
} else {
|
|
zend_throw_or_error(fetch_type, NULL, "Class '%s' not found", ZSTR_VAL(class_name));
|
|
}
|
|
return NULL;
|
|
}
|
|
return ce;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API int zend_delete_global_variable(zend_string *name) /* {{{ */
|
|
{
|
|
return zend_hash_del_ind(&EG(symbol_table), name);
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API zend_array *zend_rebuild_symbol_table(void) /* {{{ */
|
|
{
|
|
zend_execute_data *ex;
|
|
zend_array *symbol_table;
|
|
|
|
/* Search for last called user function */
|
|
ex = EG(current_execute_data);
|
|
while (ex && (!ex->func || !ZEND_USER_CODE(ex->func->common.type))) {
|
|
ex = ex->prev_execute_data;
|
|
}
|
|
if (!ex) {
|
|
return NULL;
|
|
}
|
|
if (ZEND_CALL_INFO(ex) & ZEND_CALL_HAS_SYMBOL_TABLE) {
|
|
return ex->symbol_table;
|
|
}
|
|
|
|
ZEND_ADD_CALL_FLAG(ex, ZEND_CALL_HAS_SYMBOL_TABLE);
|
|
if (EG(symtable_cache_ptr) > EG(symtable_cache)) {
|
|
symbol_table = ex->symbol_table = *(--EG(symtable_cache_ptr));
|
|
if (!ex->func->op_array.last_var) {
|
|
return symbol_table;
|
|
}
|
|
zend_hash_extend(symbol_table, ex->func->op_array.last_var, 0);
|
|
} else {
|
|
symbol_table = ex->symbol_table = zend_new_array(ex->func->op_array.last_var);
|
|
if (!ex->func->op_array.last_var) {
|
|
return symbol_table;
|
|
}
|
|
zend_hash_real_init_mixed(symbol_table);
|
|
/*printf("Cache miss! Initialized %x\n", EG(active_symbol_table));*/
|
|
}
|
|
if (EXPECTED(ex->func->op_array.last_var)) {
|
|
zend_string **str = ex->func->op_array.vars;
|
|
zend_string **end = str + ex->func->op_array.last_var;
|
|
zval *var = ZEND_CALL_VAR_NUM(ex, 0);
|
|
|
|
do {
|
|
_zend_hash_append_ind(symbol_table, *str, var);
|
|
str++;
|
|
var++;
|
|
} while (str != end);
|
|
}
|
|
return symbol_table;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API void zend_attach_symbol_table(zend_execute_data *execute_data) /* {{{ */
|
|
{
|
|
zend_op_array *op_array = &execute_data->func->op_array;
|
|
HashTable *ht = execute_data->symbol_table;
|
|
|
|
/* copy real values from symbol table into CV slots and create
|
|
INDIRECT references to CV in symbol table */
|
|
if (EXPECTED(op_array->last_var)) {
|
|
zend_string **str = op_array->vars;
|
|
zend_string **end = str + op_array->last_var;
|
|
zval *var = EX_VAR_NUM(0);
|
|
|
|
do {
|
|
zval *zv = zend_hash_find_ex(ht, *str, 1);
|
|
|
|
if (zv) {
|
|
if (Z_TYPE_P(zv) == IS_INDIRECT) {
|
|
zval *val = Z_INDIRECT_P(zv);
|
|
|
|
ZVAL_COPY_VALUE(var, val);
|
|
} else {
|
|
ZVAL_COPY_VALUE(var, zv);
|
|
}
|
|
} else {
|
|
ZVAL_UNDEF(var);
|
|
zv = zend_hash_add_new(ht, *str, var);
|
|
}
|
|
ZVAL_INDIRECT(zv, var);
|
|
str++;
|
|
var++;
|
|
} while (str != end);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API void zend_detach_symbol_table(zend_execute_data *execute_data) /* {{{ */
|
|
{
|
|
zend_op_array *op_array = &execute_data->func->op_array;
|
|
HashTable *ht = execute_data->symbol_table;
|
|
|
|
/* copy real values from CV slots into symbol table */
|
|
if (EXPECTED(op_array->last_var)) {
|
|
zend_string **str = op_array->vars;
|
|
zend_string **end = str + op_array->last_var;
|
|
zval *var = EX_VAR_NUM(0);
|
|
|
|
do {
|
|
if (Z_TYPE_P(var) == IS_UNDEF) {
|
|
zend_hash_del(ht, *str);
|
|
} else {
|
|
zend_hash_update(ht, *str, var);
|
|
ZVAL_UNDEF(var);
|
|
}
|
|
str++;
|
|
var++;
|
|
} while (str != end);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API int zend_set_local_var(zend_string *name, zval *value, int force) /* {{{ */
|
|
{
|
|
zend_execute_data *execute_data = EG(current_execute_data);
|
|
|
|
while (execute_data && (!execute_data->func || !ZEND_USER_CODE(execute_data->func->common.type))) {
|
|
execute_data = execute_data->prev_execute_data;
|
|
}
|
|
|
|
if (execute_data) {
|
|
if (!(EX_CALL_INFO() & ZEND_CALL_HAS_SYMBOL_TABLE)) {
|
|
zend_ulong h = zend_string_hash_val(name);
|
|
zend_op_array *op_array = &execute_data->func->op_array;
|
|
|
|
if (EXPECTED(op_array->last_var)) {
|
|
zend_string **str = op_array->vars;
|
|
zend_string **end = str + op_array->last_var;
|
|
|
|
do {
|
|
if (ZSTR_H(*str) == h &&
|
|
zend_string_equal_content(*str, name)) {
|
|
zval *var = EX_VAR_NUM(str - op_array->vars);
|
|
ZVAL_COPY_VALUE(var, value);
|
|
return SUCCESS;
|
|
}
|
|
str++;
|
|
} while (str != end);
|
|
}
|
|
if (force) {
|
|
zend_array *symbol_table = zend_rebuild_symbol_table();
|
|
if (symbol_table) {
|
|
zend_hash_update(symbol_table, name, value);
|
|
return SUCCESS;
|
|
}
|
|
}
|
|
} else {
|
|
zend_hash_update_ind(execute_data->symbol_table, name, value);
|
|
return SUCCESS;
|
|
}
|
|
}
|
|
return FAILURE;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API int zend_set_local_var_str(const char *name, size_t len, zval *value, int force) /* {{{ */
|
|
{
|
|
zend_execute_data *execute_data = EG(current_execute_data);
|
|
|
|
while (execute_data && (!execute_data->func || !ZEND_USER_CODE(execute_data->func->common.type))) {
|
|
execute_data = execute_data->prev_execute_data;
|
|
}
|
|
|
|
if (execute_data) {
|
|
if (!(EX_CALL_INFO() & ZEND_CALL_HAS_SYMBOL_TABLE)) {
|
|
zend_ulong h = zend_hash_func(name, len);
|
|
zend_op_array *op_array = &execute_data->func->op_array;
|
|
if (EXPECTED(op_array->last_var)) {
|
|
zend_string **str = op_array->vars;
|
|
zend_string **end = str + op_array->last_var;
|
|
|
|
do {
|
|
if (ZSTR_H(*str) == h &&
|
|
ZSTR_LEN(*str) == len &&
|
|
memcmp(ZSTR_VAL(*str), name, len) == 0) {
|
|
zval *var = EX_VAR_NUM(str - op_array->vars);
|
|
zval_ptr_dtor(var);
|
|
ZVAL_COPY_VALUE(var, value);
|
|
return SUCCESS;
|
|
}
|
|
str++;
|
|
} while (str != end);
|
|
}
|
|
if (force) {
|
|
zend_array *symbol_table = zend_rebuild_symbol_table();
|
|
if (symbol_table) {
|
|
zend_hash_str_update(symbol_table, name, len, value);
|
|
return SUCCESS;
|
|
}
|
|
}
|
|
} else {
|
|
zend_hash_str_update_ind(execute_data->symbol_table, name, len, value);
|
|
return SUCCESS;
|
|
}
|
|
}
|
|
return FAILURE;
|
|
}
|
|
/* }}} */
|