mirror of
https://github.com/php/php-src.git
synced 2024-12-13 11:54:45 +08:00
1119 lines
31 KiB
C
1119 lines
31 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 1998-2003 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@zend.com> |
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| Zeev Suraski <zeev@zend.com> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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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_ptr_stack.h"
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#include "zend_constants.h"
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#include "zend_extensions.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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ZEND_API void (*zend_execute)(zend_op_array *op_array TSRMLS_DC);
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ZEND_API void (*zend_execute_internal)(zend_execute_data *execute_data_ptr, int return_value_used TSRMLS_DC);
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/* true globals */
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ZEND_API zend_fcall_info_cache empty_fcall_info_cache = { NULL, NULL, NULL, 0 };
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#ifdef ZEND_WIN32
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#include <process.h>
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static WNDCLASS wc;
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static HWND timeout_window;
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static HANDLE timeout_thread_event;
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static DWORD timeout_thread_id;
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static int timeout_thread_initialized=0;
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#endif
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#if 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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TSRMLS_FETCH();
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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(TSRMLS_C),
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zend_get_executed_filename(TSRMLS_C),
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zend_get_executed_lineno(TSRMLS_C));
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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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#endif
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static void zend_extension_activator(zend_extension *extension TSRMLS_DC)
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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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static void zend_extension_deactivator(zend_extension *extension TSRMLS_DC)
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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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static int is_not_internal_function(zend_function *function TSRMLS_DC)
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{
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if (function->type == ZEND_INTERNAL_FUNCTION) {
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return EG(full_tables_cleanup) ? 0 : ZEND_HASH_APPLY_STOP;
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} else {
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return EG(full_tables_cleanup) ? 1 : ZEND_HASH_APPLY_REMOVE;
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}
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}
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static int is_not_internal_class(zend_class_entry **ce TSRMLS_DC)
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{
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if ((*ce)->type == ZEND_INTERNAL_CLASS) {
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return EG(full_tables_cleanup) ? 0 : ZEND_HASH_APPLY_STOP;
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} else {
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return EG(full_tables_cleanup) ? 1 : ZEND_HASH_APPLY_REMOVE;
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}
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}
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void init_executor(TSRMLS_D)
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{
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INIT_ZVAL(EG(uninitialized_zval));
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/* trick to make uninitialized_zval never be modified, passed by ref, etc. */
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EG(uninitialized_zval).refcount++;
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INIT_ZVAL(EG(error_zval));
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EG(uninitialized_zval_ptr)=&EG(uninitialized_zval);
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EG(error_zval_ptr)=&EG(error_zval);
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zend_ptr_stack_init(&EG(arg_types_stack));
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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(return_value_ptr_ptr) = NULL;
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EG(symtable_cache_ptr) = EG(symtable_cache)-1;
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EG(symtable_cache_limit)=EG(symtable_cache)+SYMTABLE_CACHE_SIZE-1;
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EG(no_extensions)=0;
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EG(implicit_clone)=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_execution) = 0;
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zend_ptr_stack_init(&EG(argument_stack));
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zend_hash_init(&EG(symbol_table), 50, NULL, ZVAL_PTR_DTOR, 0);
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{
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zval *globals;
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ALLOC_ZVAL(globals);
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globals->refcount=1;
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globals->is_ref=1;
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globals->type = IS_ARRAY;
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globals->value.ht = &EG(symbol_table);
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zend_hash_update(&EG(symbol_table), "GLOBALS", sizeof("GLOBALS"), &globals, sizeof(zval *), NULL);
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}
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EG(active_symbol_table) = &EG(symbol_table);
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zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_activator TSRMLS_CC);
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EG(opline_ptr) = NULL;
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EG(garbage_ptr) = 0;
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zend_hash_init(&EG(included_files), 5, NULL, NULL, 0);
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EG(ticks_count) = 0;
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EG(user_error_handler) = NULL;
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EG(current_execute_data) = NULL;
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zend_ptr_stack_init(&EG(user_error_handlers));
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zend_ptr_stack_init(&EG(user_exception_handlers));
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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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#ifdef ZEND_WIN32
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EG(timed_out) = 0;
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#endif
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EG(exception) = NULL;
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EG(scope) = NULL;
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EG(current_execute_data) = NULL;
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EG(This) = NULL;
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EG(float_separator)[0] = '.';
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}
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void shutdown_executor(TSRMLS_D)
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{
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zend_try {
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/* Removed because this can not be safely done, e.g. in this situation:
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Object 1 creates object 2
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Object 3 holds reference to object 2.
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Now when 1 and 2 are destroyed, 3 can still access 2 in its destructor, with
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very problematic results */
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/* zend_objects_store_call_destructors(&EG(objects_store) TSRMLS_CC); */
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/* Moved after symbol table cleaners, because some of the cleaners can call
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destructors, which would use EG(symtable_cache_ptr) and thus leave leaks */
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/* while (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
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zend_hash_destroy(*EG(symtable_cache_ptr));
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efree(*EG(symtable_cache_ptr));
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EG(symtable_cache_ptr)--;
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}
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*/
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zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_deactivator TSRMLS_CC);
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zend_hash_destroy(&EG(symbol_table));
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} zend_end_try();
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zend_try {
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zval *zeh;
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/* remove error handlers before destroying classes and functions,
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so that if handler used some class, crash would not happen */
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if (EG(user_error_handler)) {
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zeh = EG(user_error_handler);
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EG(user_error_handler) = NULL;
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zval_dtor(zeh);
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FREE_ZVAL(zeh);
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}
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if (EG(user_exception_handler)) {
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zeh = EG(user_exception_handler);
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EG(user_exception_handler) = NULL;
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zval_dtor(zeh);
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FREE_ZVAL(zeh);
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}
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zend_ptr_stack_clean(&EG(user_error_handlers), ZVAL_DESTRUCTOR, 1);
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zend_ptr_stack_clean(&EG(user_exception_handlers), ZVAL_DESTRUCTOR, 1);
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} zend_end_try();
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zend_try {
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/* Cleanup static data for functions and arrays.
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We need separate cleanup stage because of the following problem:
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Suppose we destroy class X, which destroys function table,
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and in function table we have function foo() that has static $bar. Now if
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object of class X is assigned to $bar, its destructor will be called and will
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fail since X's function table is in mid-destruction.
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So we want first of all to clean up all data and then move to tables destruction.
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Note that only run-time accessed data need to be cleaned up, pre-defined data can
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not contain objects and thus are not probelmatic */
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zend_hash_apply(EG(function_table), (apply_func_t) zend_cleanup_function_data TSRMLS_CC);
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zend_hash_apply(EG(class_table), (apply_func_t) zend_cleanup_class_data TSRMLS_CC);
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while (EG(garbage_ptr)) {
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if (EG(garbage)[--EG(garbage_ptr)]->refcount==1) {
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zval_ptr_dtor(&EG(garbage)[EG(garbage_ptr)]);
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}
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}
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zend_ptr_stack_destroy(&EG(argument_stack));
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/* Destroy all op arrays */
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if (EG(full_tables_cleanup)) {
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zend_hash_apply(EG(function_table), (apply_func_t) is_not_internal_function TSRMLS_CC);
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zend_hash_apply(EG(class_table), (apply_func_t) is_not_internal_class TSRMLS_CC);
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} else {
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zend_hash_reverse_apply(EG(function_table), (apply_func_t) is_not_internal_function TSRMLS_CC);
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zend_hash_reverse_apply(EG(class_table), (apply_func_t) is_not_internal_class TSRMLS_CC);
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}
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while (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
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zend_hash_destroy(*EG(symtable_cache_ptr));
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efree(*EG(symtable_cache_ptr));
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EG(symtable_cache_ptr)--;
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}
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} zend_end_try();
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zend_try {
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clean_non_persistent_constants(TSRMLS_C);
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} zend_end_try();
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/* The regular list must be destroyed after the main symbol table,
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* op arrays, and constants are destroyed.
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*/
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zend_destroy_rsrc_list(&EG(regular_list) TSRMLS_CC);
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zend_try {
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#if ZEND_DEBUG
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signal(SIGSEGV, original_sigsegv_handler);
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#endif
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zend_hash_destroy(&EG(included_files));
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zend_ptr_stack_destroy(&EG(arg_types_stack));
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zend_ptr_stack_destroy(&EG(user_error_handlers));
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zend_ptr_stack_destroy(&EG(user_exception_handlers));
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zend_objects_store_destroy(&EG(objects_store));
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} zend_end_try();
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}
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ZEND_API char *get_active_function_name(TSRMLS_D)
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{
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if (!zend_is_executing(TSRMLS_C)) {
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return NULL;
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}
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switch (EG(function_state_ptr)->function->type) {
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case ZEND_USER_FUNCTION: {
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char *function_name = ((zend_op_array *) EG(function_state_ptr)->function)->function_name;
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if (function_name) {
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return function_name;
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} else {
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return "main";
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}
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}
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break;
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case ZEND_INTERNAL_FUNCTION:
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return ((zend_internal_function *) EG(function_state_ptr)->function)->function_name;
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break;
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default:
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return NULL;
|
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}
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}
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ZEND_API char *zend_get_executed_filename(TSRMLS_D)
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{
|
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if (EG(active_op_array)) {
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return EG(active_op_array)->filename;
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} else {
|
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return "[no active file]";
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}
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}
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ZEND_API uint zend_get_executed_lineno(TSRMLS_D)
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{
|
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if (EG(opline_ptr)) {
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return active_opline->lineno;
|
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} else {
|
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return 0;
|
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}
|
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}
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ZEND_API zend_bool zend_is_executing(TSRMLS_D)
|
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{
|
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return EG(in_execution);
|
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}
|
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|
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ZEND_API void _zval_ptr_dtor(zval **zval_ptr ZEND_FILE_LINE_DC)
|
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{
|
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#if DEBUG_ZEND>=2
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printf("Reducing refcount for %x (%x): %d->%d\n", *zval_ptr, zval_ptr, (*zval_ptr)->refcount, (*zval_ptr)->refcount-1);
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#endif
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(*zval_ptr)->refcount--;
|
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if ((*zval_ptr)->refcount==0) {
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zval_dtor(*zval_ptr);
|
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safe_free_zval_ptr(*zval_ptr);
|
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} else if ((*zval_ptr)->refcount == 1) {
|
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(*zval_ptr)->is_ref = 0;
|
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}
|
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}
|
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ZEND_API int zend_is_true(zval *op)
|
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{
|
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return i_zend_is_true(op);
|
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}
|
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|
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#include "../TSRM/tsrm_strtok_r.h"
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|
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ZEND_API int zval_update_constant(zval **pp, void *arg TSRMLS_DC)
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{
|
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zval *p = *pp;
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zend_bool inline_change = (zend_bool) (unsigned long) arg;
|
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zval const_value;
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|
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if (p->type == IS_CONSTANT) {
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int refcount;
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SEPARATE_ZVAL(pp);
|
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p = *pp;
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refcount = p->refcount;
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|
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if (!zend_get_constant(p->value.str.val, p->value.str.len, &const_value TSRMLS_CC)) {
|
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zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'",
|
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p->value.str.val,
|
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p->value.str.val);
|
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p->type = IS_STRING;
|
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if (!inline_change) {
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zval_copy_ctor(p);
|
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}
|
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} else {
|
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if (inline_change) {
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STR_FREE(p->value.str.val);
|
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}
|
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*p = const_value;
|
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}
|
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|
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INIT_PZVAL(p);
|
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p->refcount = refcount;
|
|
} else if (p->type == IS_CONSTANT_ARRAY) {
|
|
zval **element, *new_val;
|
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char *str_index;
|
|
uint str_index_len;
|
|
ulong num_index;
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|
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SEPARATE_ZVAL(pp);
|
|
p = *pp;
|
|
p->type = IS_ARRAY;
|
|
|
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/* First go over the array and see if there are any constant indices */
|
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zend_hash_internal_pointer_reset(p->value.ht);
|
|
while (zend_hash_get_current_data(p->value.ht, (void **) &element)==SUCCESS) {
|
|
if (!(Z_TYPE_PP(element) & IS_CONSTANT_INDEX)) {
|
|
zend_hash_move_forward(p->value.ht);
|
|
continue;
|
|
}
|
|
Z_TYPE_PP(element) &= ~IS_CONSTANT_INDEX;
|
|
if (zend_hash_get_current_key_ex(p->value.ht, &str_index, &str_index_len, &num_index, 0, NULL)!=HASH_KEY_IS_STRING) {
|
|
zend_hash_move_forward(p->value.ht);
|
|
continue;
|
|
}
|
|
if (!zend_get_constant(str_index, str_index_len-1, &const_value TSRMLS_CC)) {
|
|
zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'", str_index, str_index);
|
|
zend_hash_move_forward(p->value.ht);
|
|
continue;
|
|
}
|
|
|
|
if (const_value.type == IS_STRING && const_value.value.str.len == str_index_len-1 &&
|
|
!strncmp(const_value.value.str.val, str_index, str_index_len)) {
|
|
/* constant value is the same as its name */
|
|
zval_dtor(&const_value);
|
|
zend_hash_move_forward(p->value.ht);
|
|
continue;
|
|
}
|
|
|
|
ALLOC_ZVAL(new_val);
|
|
*new_val = **element;
|
|
zval_copy_ctor(new_val);
|
|
new_val->refcount = 1;
|
|
new_val->is_ref = 0;
|
|
|
|
/* preserve this bit for inheritance */
|
|
Z_TYPE_PP(element) |= IS_CONSTANT_INDEX;
|
|
|
|
switch (const_value.type) {
|
|
case IS_STRING:
|
|
zend_hash_update(p->value.ht, const_value.value.str.val, const_value.value.str.len+1, &new_val, sizeof(zval *), NULL);
|
|
break;
|
|
case IS_LONG:
|
|
zend_hash_index_update(p->value.ht, const_value.value.lval, &new_val, sizeof(zval *), NULL);
|
|
break;
|
|
}
|
|
zend_hash_del(p->value.ht, str_index, str_index_len);
|
|
zval_dtor(&const_value);
|
|
}
|
|
zend_hash_apply_with_argument(p->value.ht, (apply_func_arg_t) zval_update_constant, (void *) 1 TSRMLS_CC);
|
|
zend_hash_internal_pointer_reset(p->value.ht);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
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 = (zval ***) emalloc(sizeof(zval **)*param_count);
|
|
zend_uint i;
|
|
int ex_retval;
|
|
zval *local_retval_ptr;
|
|
|
|
for (i=0; i<param_count; i++) {
|
|
params_array[i] = ¶ms[i];
|
|
}
|
|
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);
|
|
}
|
|
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_pp = object_pp;
|
|
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_function_state *original_function_state_ptr;
|
|
zend_op_array *original_op_array;
|
|
zend_op **original_opline_ptr;
|
|
zval *orig_free_op1, *orig_free_op2;
|
|
int (*orig_unary_op)(zval *result, zval *op1);
|
|
int (*orig_binary_op)(zval *result, zval *op1, zval *op2 TSRMLS_DC);
|
|
zend_class_entry *current_scope;
|
|
zend_class_entry *calling_scope = NULL;
|
|
char *function_name_lc;
|
|
zval *current_this;
|
|
zend_execute_data execute_data;
|
|
zval *method_name;
|
|
zval *params_array;
|
|
int call_via_handler = 0;
|
|
|
|
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 */
|
|
EX(fbc) = NULL;
|
|
EX(object) = NULL;
|
|
EX(Ts) = NULL;
|
|
EX(op_array) = NULL;
|
|
EX(opline) = NULL;
|
|
*fci->retval_ptr_ptr = NULL;
|
|
|
|
if (!fci_cache || !fci_cache->initialized) {
|
|
if (fci->function_name->type==IS_ARRAY) { /* assume array($obj, $name) couple */
|
|
zval **tmp_object_ptr, **tmp_real_function_name;
|
|
|
|
if (zend_hash_index_find(fci->function_name->value.ht, 0, (void **) &tmp_object_ptr)==FAILURE) {
|
|
return FAILURE;
|
|
}
|
|
if (zend_hash_index_find(fci->function_name->value.ht, 1, (void **) &tmp_real_function_name)==FAILURE) {
|
|
return FAILURE;
|
|
}
|
|
fci->function_name = *tmp_real_function_name;
|
|
SEPARATE_ZVAL_IF_NOT_REF(tmp_object_ptr);
|
|
fci->object_pp = tmp_object_ptr;
|
|
(*fci->object_pp)->is_ref = 1;
|
|
}
|
|
|
|
if (fci->object_pp && !*fci->object_pp) {
|
|
fci->object_pp = NULL;
|
|
}
|
|
|
|
if (fci->object_pp) {
|
|
/* TBI!! new object handlers */
|
|
if (Z_TYPE_PP(fci->object_pp) == IS_OBJECT) {
|
|
if (!IS_ZEND_STD_OBJECT(**fci->object_pp)) {
|
|
zend_error(E_WARNING, "Cannot use call_user_function on objects without a class entry");
|
|
return FAILURE;
|
|
}
|
|
|
|
calling_scope = Z_OBJCE_PP(fci->object_pp);
|
|
fci->function_table = &calling_scope->function_table;
|
|
EX(object) = *fci->object_pp;
|
|
}
|
|
}
|
|
|
|
if (fci->object_pp) {
|
|
if (Z_TYPE_PP(fci->object_pp) == IS_STRING) {
|
|
zend_class_entry **ce;
|
|
char *lc_class;
|
|
int found = FAILURE;
|
|
|
|
lc_class = zend_str_tolower_dup(Z_STRVAL_PP(fci->object_pp), Z_STRLEN_PP(fci->object_pp));
|
|
if (EG(active_op_array) && strcmp(lc_class, "self") == 0) {
|
|
ce = &(EG(active_op_array)->scope);
|
|
found = (*ce != NULL?SUCCESS:FAILURE);
|
|
} else if (strcmp(lc_class, "parent") == 0 && EG(active_op_array) && EG(active_op_array)->scope) {
|
|
ce = &(EG(active_op_array)->scope->parent);
|
|
found = (*ce != NULL?SUCCESS:FAILURE);
|
|
} else {
|
|
found = zend_lookup_class(lc_class, Z_STRLEN_PP(fci->object_pp), &ce TSRMLS_CC);
|
|
}
|
|
efree(lc_class);
|
|
if (found == FAILURE)
|
|
return FAILURE;
|
|
|
|
fci->function_table = &(*ce)->function_table;
|
|
calling_scope = *ce;
|
|
fci->object_pp = NULL;
|
|
}
|
|
|
|
if (fci->function_table == NULL) {
|
|
return FAILURE;
|
|
}
|
|
}
|
|
|
|
if (fci->function_name->type!=IS_STRING) {
|
|
return FAILURE;
|
|
}
|
|
|
|
function_name_lc = zend_str_tolower_dup(fci->function_name->value.str.val, fci->function_name->value.str.len);
|
|
|
|
original_function_state_ptr = EG(function_state_ptr);
|
|
if (zend_hash_find(fci->function_table, function_name_lc, fci->function_name->value.str.len+1, (void **) &EX(function_state).function)==FAILURE) {
|
|
/* try calling __call */
|
|
if (calling_scope && calling_scope->__call) {
|
|
EX(function_state).function = calling_scope->__call;
|
|
/* prepare params */
|
|
ALLOC_INIT_ZVAL(method_name);
|
|
ZVAL_STRING(method_name, function_name_lc, 1);
|
|
|
|
ALLOC_INIT_ZVAL(params_array);
|
|
array_init(params_array);
|
|
call_via_handler = 1;
|
|
} else {
|
|
efree(function_name_lc);
|
|
return FAILURE;
|
|
}
|
|
}
|
|
efree(function_name_lc);
|
|
EX(function_state).function;
|
|
if (fci_cache) {
|
|
fci_cache->function_handler = EX(function_state).function;
|
|
fci_cache->object_pp = fci->object_pp;
|
|
fci_cache->calling_scope = calling_scope;
|
|
fci_cache->initialized = 1;
|
|
}
|
|
} else {
|
|
EX(function_state).function = fci_cache->function_handler;
|
|
calling_scope = fci_cache->calling_scope;
|
|
fci->object_pp = fci_cache->object_pp;
|
|
}
|
|
|
|
for (i=0; i<fci->param_count; i++) {
|
|
zval *param;
|
|
|
|
if (ARG_SHOULD_BE_SENT_BY_REF(EX(function_state).function, i+1)
|
|
&& !PZVAL_IS_REF(*fci->params[i])) {
|
|
if ((*fci->params[i])->refcount>1) {
|
|
zval *new_zval;
|
|
|
|
if (fci->no_separation) {
|
|
return FAILURE;
|
|
}
|
|
ALLOC_ZVAL(new_zval);
|
|
*new_zval = **fci->params[i];
|
|
zval_copy_ctor(new_zval);
|
|
new_zval->refcount = 1;
|
|
(*fci->params[i])->refcount--;
|
|
*fci->params[i] = new_zval;
|
|
}
|
|
(*fci->params[i])->refcount++;
|
|
(*fci->params[i])->is_ref = 1;
|
|
param = *fci->params[i];
|
|
} else if (*fci->params[i] != &EG(uninitialized_zval)) {
|
|
(*fci->params[i])->refcount++;
|
|
param = *fci->params[i];
|
|
} else {
|
|
ALLOC_ZVAL(param);
|
|
*param = **(fci->params[i]);
|
|
INIT_PZVAL(param);
|
|
}
|
|
if (call_via_handler) {
|
|
add_next_index_zval(params_array, param);
|
|
} else {
|
|
zend_ptr_stack_push(&EG(argument_stack), param);
|
|
}
|
|
}
|
|
|
|
if (call_via_handler) {
|
|
zend_ptr_stack_push(&EG(argument_stack), method_name);
|
|
zend_ptr_stack_push(&EG(argument_stack), params_array);
|
|
fci->param_count = 2;
|
|
}
|
|
|
|
zend_ptr_stack_n_push(&EG(argument_stack), 2, (void *) (long) fci->param_count, NULL);
|
|
|
|
EG(function_state_ptr) = &EX(function_state);
|
|
|
|
current_scope = EG(scope);
|
|
EG(scope) = calling_scope;
|
|
|
|
current_this = EG(This);
|
|
|
|
if (fci->object_pp) {
|
|
EG(This) = *fci->object_pp;
|
|
|
|
if (!PZVAL_IS_REF(EG(This))) {
|
|
EG(This)->refcount++; /* 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);
|
|
if (fci->symbol_table) {
|
|
EG(active_symbol_table) = fci->symbol_table;
|
|
} else {
|
|
ALLOC_HASHTABLE(EG(active_symbol_table));
|
|
zend_hash_init(EG(active_symbol_table), 0, NULL, ZVAL_PTR_DTOR, 0);
|
|
}
|
|
|
|
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);
|
|
orig_free_op1 = EG(free_op1);
|
|
orig_free_op2 = EG(free_op2);
|
|
orig_unary_op = EG(unary_op);
|
|
orig_binary_op = EG(binary_op);
|
|
zend_execute(EG(active_op_array) TSRMLS_CC);
|
|
if (!fci->symbol_table) {
|
|
zend_hash_destroy(EG(active_symbol_table));
|
|
FREE_HASHTABLE(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;
|
|
EG(free_op1) = orig_free_op1;
|
|
EG(free_op2) = orig_free_op2;
|
|
EG(unary_op) = orig_unary_op;
|
|
EG(binary_op) = orig_binary_op;
|
|
} else {
|
|
ALLOC_INIT_ZVAL(*fci->retval_ptr_ptr);
|
|
((zend_internal_function *) EX(function_state).function)->handler(fci->param_count, *fci->retval_ptr_ptr, (fci->object_pp?*fci->object_pp:NULL), 1 TSRMLS_CC);
|
|
INIT_PZVAL(*fci->retval_ptr_ptr);
|
|
}
|
|
zend_ptr_stack_clear_multiple(TSRMLS_C);
|
|
if (call_via_handler) {
|
|
zval_ptr_dtor(&method_name);
|
|
zval_ptr_dtor(¶ms_array);
|
|
}
|
|
EG(function_state_ptr) = original_function_state_ptr;
|
|
|
|
if (EG(This)) {
|
|
zval_ptr_dtor(&EG(This));
|
|
}
|
|
EG(scope) = current_scope;
|
|
EG(This) = current_this;
|
|
EG(current_execute_data) = EX(prev_execute_data);
|
|
return SUCCESS;
|
|
}
|
|
|
|
|
|
ZEND_API int zend_lookup_class(char *name, int name_length, zend_class_entry ***ce TSRMLS_DC)
|
|
{
|
|
zval **args[1];
|
|
zval *autoload_function;
|
|
zval *class_name;
|
|
zval *retval_ptr;
|
|
int retval;
|
|
|
|
if (zend_hash_find(EG(class_table), name, name_length+1, (void **) ce) == SUCCESS) {
|
|
return SUCCESS;
|
|
}
|
|
|
|
MAKE_STD_ZVAL(autoload_function);
|
|
ZVAL_STRINGL(autoload_function, "__autoload", sizeof("__autoload")-1, 1);
|
|
|
|
MAKE_STD_ZVAL(class_name);
|
|
ZVAL_STRINGL(class_name, name, name_length, 1);
|
|
args[0] = &class_name;
|
|
|
|
retval = call_user_function_ex(EG(function_table), NULL, autoload_function, &retval_ptr, 1, args, 0, NULL TSRMLS_CC);
|
|
|
|
zval_ptr_dtor(&autoload_function);
|
|
zval_ptr_dtor(&class_name);
|
|
|
|
if (retval == FAILURE) {
|
|
return FAILURE;
|
|
}
|
|
|
|
if (EG(exception)) {
|
|
zend_error(E_ERROR, "__autoload threw an exception");
|
|
}
|
|
|
|
/* If an exception is thrown retval_ptr will be NULL but we bailout before we reach this point */
|
|
zval_ptr_dtor(&retval_ptr);
|
|
|
|
return zend_hash_find(EG(class_table), name, name_length + 1, (void **) ce);
|
|
}
|
|
|
|
ZEND_API int zend_eval_string(char *str, 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_function_state *original_function_state_ptr = EG(function_state_ptr);
|
|
zend_uchar original_handle_op_arrays;
|
|
int retval;
|
|
|
|
if (retval_ptr) {
|
|
pv.value.str.len = strlen(str)+sizeof("return ;")-1;
|
|
pv.value.str.val = emalloc(pv.value.str.len+1);
|
|
strcpy(pv.value.str.val, "return ");
|
|
strcat(pv.value.str.val, str);
|
|
strcat(pv.value.str.val, " ;");
|
|
} else {
|
|
pv.value.str.len = strlen(str);
|
|
pv.value.str.val = estrndup(str, pv.value.str.len);
|
|
}
|
|
pv.type = IS_STRING;
|
|
|
|
/*printf("Evaluating '%s'\n", pv.value.str.val);*/
|
|
|
|
original_handle_op_arrays = CG(handle_op_arrays);
|
|
CG(handle_op_arrays) = 0;
|
|
new_op_array = compile_string(&pv, string_name TSRMLS_CC);
|
|
CG(handle_op_arrays) = original_handle_op_arrays;
|
|
|
|
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);
|
|
|
|
EG(return_value_ptr_ptr) = &local_retval_ptr;
|
|
EG(active_op_array) = new_op_array;
|
|
EG(no_extensions)=1;
|
|
|
|
zend_execute(new_op_array TSRMLS_CC);
|
|
|
|
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;
|
|
EG(function_state_ptr) = original_function_state_ptr;
|
|
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;
|
|
}
|
|
zval_dtor(&pv);
|
|
return retval;
|
|
}
|
|
|
|
|
|
void execute_new_code(TSRMLS_D)
|
|
{
|
|
zend_op *opline, *end;
|
|
zend_op *ret_opline;
|
|
zval *local_retval=NULL;
|
|
|
|
if (!CG(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) {
|
|
opline->op1.u.constant.is_ref = 1;
|
|
opline->op1.u.constant.refcount = 2; /* Make sure is_ref won't be reset */
|
|
}
|
|
if (opline->op2.op_type==IS_CONST) {
|
|
opline->op2.u.constant.is_ref = 1;
|
|
opline->op2.u.constant.refcount = 2;
|
|
}
|
|
opline->handler = zend_opcode_handlers[opline->opcode];
|
|
opline++;
|
|
}
|
|
|
|
EG(return_value_ptr_ptr) = &local_retval;
|
|
EG(active_op_array) = CG(active_op_array);
|
|
zend_execute(CG(active_op_array) TSRMLS_CC);
|
|
if (local_retval) {
|
|
zval_ptr_dtor(&local_retval);
|
|
}
|
|
|
|
CG(active_op_array)->last--; /* 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 {
|
|
SetTimer(timeout_window, wParam, lParam*1000, NULL);
|
|
}
|
|
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);
|
|
return 0;
|
|
}
|
|
|
|
|
|
void zend_init_timeout_thread()
|
|
{
|
|
timeout_thread_event = 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()
|
|
{
|
|
if (!timeout_thread_initialized) {
|
|
return;
|
|
}
|
|
PostThreadMessage(timeout_thread_id, WM_QUIT, 0, 0);
|
|
}
|
|
|
|
#endif
|
|
|
|
/* This one doesn't exists on QNX */
|
|
#ifndef SIGPROF
|
|
#define SIGPROF 27
|
|
#endif
|
|
|
|
void zend_set_timeout(long seconds)
|
|
{
|
|
TSRMLS_FETCH();
|
|
|
|
EG(timeout_seconds) = seconds;
|
|
#ifdef ZEND_WIN32
|
|
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;
|
|
|
|
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;
|
|
|
|
setitimer(ITIMER_PROF, &t_r, NULL);
|
|
signal(SIGPROF, zend_timeout);
|
|
sigemptyset(&sigset);
|
|
sigaddset(&sigset, SIGPROF);
|
|
sigprocmask(SIG_UNBLOCK, &sigset, NULL);
|
|
}
|
|
# endif
|
|
#endif
|
|
}
|
|
|
|
|
|
void zend_unset_timeout(TSRMLS_D)
|
|
{
|
|
#ifdef ZEND_WIN32
|
|
PostThreadMessage(timeout_thread_id, WM_UNREGISTER_ZEND_TIMEOUT, (WPARAM) GetCurrentThreadId(), (LPARAM) 0);
|
|
#else
|
|
# ifdef HAVE_SETITIMER
|
|
{
|
|
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;
|
|
|
|
setitimer(ITIMER_PROF, &no_timeout, NULL);
|
|
}
|
|
# endif
|
|
#endif
|
|
}
|
|
|
|
|
|
zend_class_entry *zend_fetch_class(char *class_name, uint class_name_len, int fetch_type TSRMLS_DC)
|
|
{
|
|
zend_class_entry **pce;
|
|
|
|
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_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(class_name, class_name_len, &pce TSRMLS_CC)==FAILURE) {
|
|
zend_error(E_ERROR, "Class '%s' not found", class_name);
|
|
}
|
|
return *pce;
|
|
}
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* indent-tabs-mode: t
|
|
* End:
|
|
*/
|