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Diffstat (limited to 'Zend/zend_execute_API.c')
-rw-r--r--Zend/zend_execute_API.c705
1 files changed, 0 insertions, 705 deletions
diff --git a/Zend/zend_execute_API.c b/Zend/zend_execute_API.c
deleted file mode 100644
index 8a3f147bfb..0000000000
--- a/Zend/zend_execute_API.c
+++ /dev/null
@@ -1,705 +0,0 @@
-/*
- +----------------------------------------------------------------------+
- | Zend Engine |
- +----------------------------------------------------------------------+
- | Copyright (c) 1998-2000 Zend Technologies Ltd. (http://www.zend.com) |
- +----------------------------------------------------------------------+
- | This source file is subject to version 0.92 of the Zend license, |
- | that is bundled with this package in the file LICENSE, and is |
- | available at through the world-wide-web at |
- | http://www.zend.com/license/0_92.txt. |
- | If you did not receive a copy of the Zend license and are unable to |
- | obtain it through the world-wide-web, please send a note to |
- | license@zend.com so we can mail you a copy immediately. |
- +----------------------------------------------------------------------+
- | Authors: Andi Gutmans <andi@zend.com> |
- | Zeev Suraski <zeev@zend.com> |
- +----------------------------------------------------------------------+
-*/
-
-
-#include <stdio.h>
-#include <signal.h>
-
-#include "zend.h"
-#include "zend_compile.h"
-#include "zend_execute.h"
-#include "zend_API.h"
-#include "zend_ptr_stack.h"
-#include "zend_constants.h"
-#include "zend_extensions.h"
-#include "zend_execute_locks.h"
-#if HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-
-
-ZEND_API void (*zend_execute)(zend_op_array *op_array ELS_DC);
-
-#ifdef ZEND_WIN32
-#include <process.h>
-/* true global */
-static WNDCLASS wc;
-static HWND timeout_window;
-static HANDLE timeout_thread_event;
-static DWORD timeout_thread_id;
-static int timeout_thread_initialized=0;
-#endif
-
-
-#if ZEND_DEBUG
-static void (*original_sigsegv_handler)(int);
-static void zend_handle_sigsegv(int dummy)
-{
- fflush(stdout);
- fflush(stderr);
- if (original_sigsegv_handler==zend_handle_sigsegv) {
- signal(SIGSEGV, original_sigsegv_handler);
- } else {
- signal(SIGSEGV, SIG_DFL);
- }
- {
- ELS_FETCH();
-
- fprintf(stderr, "SIGSEGV caught on opcode %d on opline %d of %s() at %s:%d\n\n",
- active_opline->opcode,
- active_opline-EG(active_op_array)->opcodes,
- get_active_function_name(),
- zend_get_executed_filename(ELS_C),
- zend_get_executed_lineno(ELS_C));
- }
- if (original_sigsegv_handler!=zend_handle_sigsegv) {
- original_sigsegv_handler(dummy);
- }
-}
-#endif
-
-
-static void zend_extension_activator(zend_extension *extension)
-{
- if (extension->activate) {
- extension->activate();
- }
-}
-
-
-static void zend_extension_deactivator(zend_extension *extension)
-{
- if (extension->deactivate) {
- extension->deactivate();
- }
-}
-
-
-static int is_not_internal_function(zend_function *function)
-{
- return(function->type != ZEND_INTERNAL_FUNCTION);
-}
-
-
-static int is_not_internal_class(zend_class_entry *ce)
-{
- return(ce->type != ZEND_INTERNAL_CLASS);
-}
-
-
-void init_executor(CLS_D ELS_DC)
-{
- INIT_ZVAL(EG(uninitialized_zval));
- INIT_ZVAL(EG(error_zval));
- EG(uninitialized_zval_ptr)=&EG(uninitialized_zval);
- EG(error_zval_ptr)=&EG(error_zval);
- zend_ptr_stack_init(&EG(arg_types_stack));
-/* destroys stack frame, therefore makes core dumps worthless */
-#if 0&&ZEND_DEBUG
- original_sigsegv_handler = signal(SIGSEGV, zend_handle_sigsegv);
-#endif
- EG(return_value_ptr_ptr) = &EG(global_return_value_ptr);
- EG(global_return_value_ptr) = NULL;
-
- EG(symtable_cache_ptr) = EG(symtable_cache)-1;
- EG(symtable_cache_limit)=EG(symtable_cache)+SYMTABLE_CACHE_SIZE-1;
- EG(no_extensions)=0;
-
- EG(function_table) = CG(function_table);
- EG(class_table) = CG(class_table);
-
- EG(in_execution) = 0;
-
- zend_ptr_stack_init(&EG(argument_stack));
-
- zend_hash_init(&EG(symbol_table), 50, NULL, ZVAL_PTR_DTOR, 0);
- EG(active_symbol_table) = &EG(symbol_table);
-
- zend_llist_apply(&zend_extensions, (void (*)(void *)) zend_extension_activator);
- EG(opline_ptr) = NULL;
- EG(garbage_ptr) = 0;
-
- zend_hash_init(&EG(included_files), 5, NULL, NULL, 0);
-
- EG(ticks_count) = 0;
-
- EG(user_error_handler) = NULL;
-
- zend_ptr_stack_init(&EG(user_error_handlers));
-
- EG(orig_error_reporting) = EG(error_reporting);
-
-#ifdef ZEND_WIN32
- EG(timed_out) = 0;
-#endif
-}
-
-
-void shutdown_executor(ELS_D)
-{
- zend_ptr_stack_destroy(&EG(arg_types_stack));
-
- while (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
- zend_hash_destroy(*EG(symtable_cache_ptr));
- efree(*EG(symtable_cache_ptr));
- EG(symtable_cache_ptr)--;
- }
- zend_llist_apply(&zend_extensions, (void (*)(void *)) zend_extension_deactivator);
-
- zend_hash_destroy(&EG(symbol_table));
-
- while (EG(garbage_ptr)--) {
- if (EG(garbage)[EG(garbage_ptr)]->refcount==1) {
- zval_ptr_dtor(&EG(garbage)[EG(garbage_ptr)]);
- }
- }
-
- zend_ptr_stack_destroy(&EG(argument_stack));
-
- /* Destroy all op arrays */
- zend_hash_apply(EG(function_table), (int (*)(void *)) is_not_internal_function);
- zend_hash_apply(EG(class_table), (int (*)(void *)) is_not_internal_class);
-
- zend_destroy_rsrc_list(ELS_C); /* must be destroyed after the main symbol table and
- * op arrays are destroyed.
- */
-
- clean_non_persistent_constants();
-#if ZEND_DEBUG
- signal(SIGSEGV, original_sigsegv_handler);
-#endif
-
- zend_hash_destroy(&EG(included_files));
-
- if (EG(user_error_handler)) {
- zval_dtor(EG(user_error_handler));
- FREE_ZVAL(EG(user_error_handler));
- }
-
- zend_ptr_stack_clean(&EG(user_error_handlers), ZVAL_DESTRUCTOR, 1);
- zend_ptr_stack_destroy(&EG(user_error_handlers));
-
- EG(error_reporting) = EG(orig_error_reporting);
-}
-
-
-ZEND_API char *get_active_function_name()
-{
- ELS_FETCH();
-
- switch(EG(function_state_ptr)->function->type) {
- case ZEND_USER_FUNCTION: {
- char *function_name = ((zend_op_array *) EG(function_state_ptr)->function)->function_name;
-
- if (function_name) {
- return function_name;
- } else {
- return "main";
- }
- }
- break;
- case ZEND_INTERNAL_FUNCTION:
- return ((zend_internal_function *) EG(function_state_ptr)->function)->function_name;
- break;
- default:
- return NULL;
- }
-}
-
-
-ZEND_API char *zend_get_executed_filename(ELS_D)
-{
- if (EG(active_op_array)) {
- return EG(active_op_array)->filename;
- } else {
- return "[no active file]";
- }
-}
-
-
-ZEND_API uint zend_get_executed_lineno(ELS_D)
-{
- if (EG(opline_ptr)) {
- return active_opline->lineno;
- } else {
- return 0;
- }
-}
-
-
-ZEND_API zend_bool zend_is_executing()
-{
- ELS_FETCH();
-
- return EG(in_execution);
-}
-
-
-ZEND_API void _zval_ptr_dtor(zval **zval_ptr ZEND_FILE_LINE_DC)
-{
-#if DEBUG_ZEND>=2
- printf("Reducing refcount for %x (%x): %d->%d\n", *zval_ptr, zval_ptr, (*zval_ptr)->refcount, (*zval_ptr)->refcount-1);
-#endif
- (*zval_ptr)->refcount--;
- if ((*zval_ptr)->refcount==0) {
- zval_dtor(*zval_ptr);
- safe_free_zval_ptr(*zval_ptr);
- } else if (((*zval_ptr)->refcount == 1) && ((*zval_ptr)->type != IS_OBJECT)) {
- (*zval_ptr)->is_ref = 0;
- }
-}
-
-
-ZEND_API int zend_is_true(zval *op)
-{
- return i_zend_is_true(op);
-}
-
-
-ZEND_API int zval_update_constant(zval **pp, void *arg)
-{
- zval *p = *pp;
- zend_bool inline_change = (zend_bool) (unsigned long) arg;
-
- if (p->type == IS_CONSTANT) {
- zval c;
- int refcount;
-
- SEPARATE_ZVAL(pp);
- p = *pp;
-
- refcount = p->refcount;
-
- if (!zend_get_constant(p->value.str.val, p->value.str.len, &c)) {
- zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'",
- p->value.str.val,
- p->value.str.val);
- p->type = IS_STRING;
- if (!inline_change) {
- zval_copy_ctor(p);
- }
- } else {
- if (inline_change) {
- STR_FREE(p->value.str.val);
- }
- *p = c;
- }
- INIT_PZVAL(p);
- p->refcount = refcount;
- } else if (p->type == IS_CONSTANT_ARRAY) {
- SEPARATE_ZVAL(pp);
- p = *pp;
- p->type = IS_ARRAY;
- zend_hash_apply_with_argument(p->value.ht, (int (*)(void *,void *)) zval_update_constant, (void *) 1);
- }
- return 0;
-}
-
-
-int call_user_function(HashTable *function_table, zval *object, zval *function_name, zval *retval_ptr, int param_count, zval *params[])
-{
- zval ***params_array = (zval ***) emalloc(sizeof(zval **)*param_count);
- int i;
- int ex_retval;
- zval *local_retval_ptr;
-
- for (i=0; i<param_count; i++) {
- params_array[i] = &params[i];
- }
- ex_retval = call_user_function_ex(function_table, object, function_name, &local_retval_ptr, param_count, params_array, 1, NULL);
- 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, zval *function_name, zval **retval_ptr_ptr, int param_count, zval **params[], int no_separation, HashTable *symbol_table)
-{
- int i;
- zval **original_return_value;
- HashTable *calling_symbol_table;
- zend_function_state function_state;
- zend_function_state *original_function_state_ptr;
- zend_op_array *original_op_array;
- zend_op **original_opline_ptr;
- ELS_FETCH();
-
- *retval_ptr_ptr = NULL;
-
- if (function_name->type==IS_ARRAY) { /* assume array($obj, $name) couple */
- zval **tmp_object_ptr, **tmp_real_function_name;
-
- if (zend_hash_index_find(function_name->value.ht, 0, (void **) &tmp_object_ptr)==FAILURE) {
- return FAILURE;
- }
- if (zend_hash_index_find(function_name->value.ht, 1, (void **) &tmp_real_function_name)==FAILURE) {
- return FAILURE;
- }
- function_name = *tmp_real_function_name;
- object = *tmp_object_ptr;
- }
-
- if (object) {
- if (object->type != IS_OBJECT) {
- return FAILURE;
- }
- function_table = &object->value.obj.ce->function_table;
- }
-
- if (function_name->type!=IS_STRING) {
- return FAILURE;
- }
-
- original_function_state_ptr = EG(function_state_ptr);
- zend_str_tolower(function_name->value.str.val, function_name->value.str.len);
- if (zend_hash_find(function_table, function_name->value.str.val, function_name->value.str.len+1, (void **) &function_state.function)==FAILURE) {
- return FAILURE;
- }
-
- for (i=0; i<param_count; i++) {
- zval *param;
-
- if (function_state.function->common.arg_types
- && i<function_state.function->common.arg_types[0]
- && function_state.function->common.arg_types[i+1]==BYREF_FORCE
- && !PZVAL_IS_REF(*params[i])) {
- if ((*params[i])->refcount>1) {
- zval *new_zval;
-
- if (no_separation) {
- return FAILURE;
- }
- ALLOC_ZVAL(new_zval);
- *new_zval = **params[i];
- zval_copy_ctor(new_zval);
- new_zval->refcount = 1;
- (*params[i])->refcount--;
- *params[i] = new_zval;
- }
- (*params[i])->refcount++;
- (*params[i])->is_ref = 1;
- param = *params[i];
- } else if (*params[i] != &EG(uninitialized_zval)) {
- (*params[i])->refcount++;
- param = *params[i];
- } else {
- ALLOC_ZVAL(param);
- *param = **(params[i]);
- INIT_PZVAL(param);
- }
- zend_ptr_stack_push(&EG(argument_stack), param);
- }
-
- zend_ptr_stack_n_push(&EG(argument_stack), 2, (void *) (long) param_count, NULL);
-
- if (function_state.function->type == ZEND_USER_FUNCTION) {
- calling_symbol_table = EG(active_symbol_table);
- if (symbol_table) {
- EG(active_symbol_table) = symbol_table;
- } else {
- ALLOC_HASHTABLE(EG(active_symbol_table));
- zend_hash_init(EG(active_symbol_table), 0, NULL, ZVAL_PTR_DTOR, 0);
- }
- if (object) {
- zval *dummy, **this_ptr;
-
- ALLOC_ZVAL(dummy);
- INIT_ZVAL(*dummy);
-
- zend_hash_update(EG(active_symbol_table), "this", sizeof("this"), &dummy, sizeof(zval *), (void **) &this_ptr);
- zend_assign_to_variable_reference(NULL, this_ptr, &object, NULL ELS_CC);
- }
- original_return_value = EG(return_value_ptr_ptr);
- original_op_array = EG(active_op_array);
- EG(return_value_ptr_ptr) = retval_ptr_ptr;
- EG(active_op_array) = (zend_op_array *) function_state.function;
- original_opline_ptr = EG(opline_ptr);
- zend_execute(EG(active_op_array) ELS_CC);
- if (!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;
- } else {
- ALLOC_INIT_ZVAL(*retval_ptr_ptr);
- ((zend_internal_function *) function_state.function)->handler(param_count, *retval_ptr_ptr, object, 1 ELS_CC);
- INIT_PZVAL(*retval_ptr_ptr);
- }
- zend_ptr_stack_clear_multiple(ELS_C);
- EG(function_state_ptr) = original_function_state_ptr;
-
- return SUCCESS;
-}
-
-
-ZEND_API int zend_eval_string(char *str, zval *retval_ptr CLS_DC ELS_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);
- int 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 CLS_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 ELS_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);
- efree(new_op_array);
- EG(return_value_ptr_ptr) = original_return_value_ptr_ptr;
- retval = SUCCESS;
- } else {
- retval = FAILURE;
- }
- zval_dtor(&pv);
- return retval;
-}
-
-
-
-#if SUPPORT_INTERACTIVE
-void execute_new_code(CLS_D)
-{
- ELS_FETCH();
-
- if (!EG(interactive)
- || CG(active_op_array)->backpatch_count>0
- || CG(active_op_array)->function_name
- || CG(active_op_array)->type!=ZEND_USER_FUNCTION) {
- return;
- }
- CG(active_op_array)->start_op_number = CG(active_op_array)->last_executed_op_number;
- CG(active_op_array)->end_op_number = CG(active_op_array)->last;
- EG(active_op_array) = CG(active_op_array);
- zend_execute(CG(active_op_array) ELS_CC);
- CG(active_op_array)->start_op_number = CG(active_op_array)->last_executed_op_number;
-}
-#endif
-
-
-ZEND_API void zend_timeout(int dummy)
-{
- ELS_FETCH();
-
- /* is there any point in this? we're terminating the request anyway...
- PLS_FETCH();
-
- PG(connection_status) |= PHP_CONNECTION_TIMEOUT;
- */
- 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
- zend_executor_globals *executor_globals;
-
- executor_globals = ts_resource_ex(executor_globals_id, &wParam);
- if (!executor_globals) {
- /* 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)
-{
- ELS_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(void)
-{
- ELS_FETCH();
-
-#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
-}