#include <stdio.h>

#include <signal.h>

#include "zend.h"

#include "zend_compile.h"

#include "zend_execute.h"

#include "zend_API.h"

#include "zend_ptr_stack.h"

#include "zend_constants.h"

#include "zend_extensions.h"

#include "zend_exceptions.h"

#include "zend_closures.h"

#include "zend_generators.h"

#include "zend_vm.h"

#include "zend_float.h"

#ifdef HAVE_SYS_TIME_H

#include <sys/time.h>

ZEND_API void (*zend_execute_ex)(zend_execute_data *execute_data TSRMLS_DC);

ZEND_API void (*zend_execute_internal)(zend_execute_data *execute_data_ptr, zend_fcall_info *fci, int return_value_used TSRMLS_DC);

ZEND_API const zend_fcall_info empty_fcall_info = { 0, NULL, NULL, NULL, NULL, 0, NULL, NULL, 0 };

ZEND_API const zend_fcall_info_cache empty_fcall_info_cache = { 0, NULL, NULL, NULL, NULL };

#ifdef ZEND_WIN32

#include <process.h>

static WNDCLASS wc;

static HWND timeout_window;

static HANDLE timeout_thread_event;

static HANDLE timeout_thread_handle;

static DWORD timeout_thread_id;

static int timeout_thread_initialized=0;

#if 0&&ZEND_DEBUG

static void (*original_sigsegv_handler)(int);

static void zend_handle_sigsegv(int dummy) /* {{{ */

{

fflush(stdout);

fflush(stderr);

if (original_sigsegv_handler == zend_handle_sigsegv) {

signal(SIGSEGV, original_sigsegv_handler);

} else {

signal(SIGSEGV, SIG_DFL);

}

{

TSRMLS_FETCH();

fprintf(stderr, "SIGSEGV caught on opcode %d on opline %d of %s() at %s:%d\n\n",

active_opline->opcode,

active_opline-EG(active_op_array)->opcodes,

get_active_function_name(TSRMLS_C),

zend_get_executed_filename(TSRMLS_C),

zend_get_executed_lineno(TSRMLS_C));

#ifdef PHP_WIN32

fflush(stderr);

}

if (original_sigsegv_handler!=zend_handle_sigsegv) {

original_sigsegv_handler(dummy);

}

}

static void zend_extension_activator(zend_extension *extension TSRMLS_DC) /* {{{ */

{

if (extension->activate) {

extension->activate();

}

}

static void zend_extension_deactivator(zend_extension *extension TSRMLS_DC) /* {{{ */

{

if (extension->deactivate) {

extension->deactivate();

}

}

static int clean_non_persistent_function(zend_function *function TSRMLS_DC) /* {{{ */

{

return (function->type == ZEND_INTERNAL_FUNCTION) ? ZEND_HASH_APPLY_STOP : ZEND_HASH_APPLY_REMOVE;

}

static int clean_non_persistent_function_full(zend_function *function TSRMLS_DC) /* {{{ */

{

return (function->type == ZEND_INTERNAL_FUNCTION) ? ZEND_HASH_APPLY_KEEP : ZEND_HASH_APPLY_REMOVE;

}

static int clean_non_persistent_class(zend_class_entry **ce TSRMLS_DC) /* {{{ */

{

return ((*ce)->type == ZEND_INTERNAL_CLASS) ? ZEND_HASH_APPLY_STOP : ZEND_HASH_APPLY_REMOVE;

}

static int clean_non_persistent_class_full(zend_class_entry **ce TSRMLS_DC) /* {{{ */

{

return ((*ce)->type == ZEND_INTERNAL_CLASS) ? ZEND_HASH_APPLY_KEEP : ZEND_HASH_APPLY_REMOVE;

}

void init_executor(TSRMLS_D) /* {{{ */

{

zend_init_fpu(TSRMLS_C);

INIT_ZVAL(EG(uninitialized_zval));

/* trick to make uninitialized_zval never be modified, passed by ref, etc. */

Z_ADDREF(EG(uninitialized_zval));

INIT_ZVAL(EG(error_zval));

EG(uninitialized_zval_ptr)=&EG(uninitialized_zval);

EG(error_zval_ptr)=&EG(error_zval);

#if 0&&ZEND_DEBUG

original_sigsegv_handler = signal(SIGSEGV, zend_handle_sigsegv);

EG(return_value_ptr_ptr) = NULL;

EG(symtable_cache_ptr) = EG(symtable_cache) - 1;

EG(symtable_cache_limit) = EG(symtable_cache) + SYMTABLE_CACHE_SIZE - 1;

EG(no_extensions) = 0;

EG(function_table) = CG(function_table);

EG(class_table) = CG(class_table);

EG(in_execution) = 0;

EG(in_autoload) = NULL;

EG(autoload_func) = NULL;

EG(error_handling) = EH_NORMAL;

zend_vm_stack_init(TSRMLS_C);

zend_vm_stack_push((void *) NULL TSRMLS_CC);

zend_hash_init(&EG(symbol_table), 50, NULL, ZVAL_PTR_DTOR, 0);

EG(active_symbol_table) = &EG(symbol_table);

zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_activator TSRMLS_CC);

EG(opline_ptr) = NULL;

zend_hash_init(&EG(included_files), 5, NULL, NULL, 0);

EG(ticks_count) = 0;

EG(user_error_handler) = NULL;

EG(current_execute_data) = NULL;

zend_stack_init(&EG(user_error_handlers_error_reporting));

zend_ptr_stack_init(&EG(user_error_handlers));

zend_ptr_stack_init(&EG(user_exception_handlers));

zend_objects_store_init(&EG(objects_store), 1024);

EG(full_tables_cleanup) = 0;

#ifdef ZEND_WIN32

EG(timed_out) = 0;

EG(exception) = NULL;

EG(prev_exception) = NULL;

EG(scope) = NULL;

EG(called_scope) = NULL;

EG(This) = NULL;

EG(active_op_array) = NULL;

EG(active) = 1;

EG(start_op) = NULL;

}

static int zval_call_destructor(zval **zv TSRMLS_DC) /* {{{ */

{

if (Z_TYPE_PP(zv) == IS_OBJECT && Z_REFCOUNT_PP(zv) == 1) {

return ZEND_HASH_APPLY_REMOVE;

} else {

return ZEND_HASH_APPLY_KEEP;

}

}

void shutdown_destructors(TSRMLS_D) /* {{{ */

{

zend_try {

int symbols;

do {

symbols = zend_hash_num_elements(&EG(symbol_table));

zend_hash_reverse_apply(&EG(symbol_table), (apply_func_t) zval_call_destructor TSRMLS_CC);

} while (symbols != zend_hash_num_elements(&EG(symbol_table)));

zend_objects_store_call_destructors(&EG(objects_store) TSRMLS_CC);

} zend_catch {

/* if we couldn't destruct cleanly, mark all objects as destructed anyway */

zend_objects_store_mark_destructed(&EG(objects_store) TSRMLS_CC);

} zend_end_try();

}

void shutdown_executor(TSRMLS_D) /* {{{ */

{

zend_try {

zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_deactivator TSRMLS_CC);

zend_hash_graceful_reverse_destroy(&EG(symbol_table));

} zend_end_try();

zend_try {

zval *zeh;

/* remove error handlers before destroying classes and functions,

if (EG(user_error_handler)) {

zeh = EG(user_error_handler);

EG(user_error_handler) = NULL;

zval_dtor(zeh);

FREE_ZVAL(zeh);

}

if (EG(user_exception_handler)) {

zeh = EG(user_exception_handler);

EG(user_exception_handler) = NULL;

zval_dtor(zeh);

FREE_ZVAL(zeh);

}

zend_stack_destroy(&EG(user_error_handlers_error_reporting));

zend_stack_init(&EG(user_error_handlers_error_reporting));

zend_ptr_stack_clean(&EG(user_error_handlers), ZVAL_DESTRUCTOR, 1);

zend_ptr_stack_clean(&EG(user_exception_handlers), ZVAL_DESTRUCTOR, 1);

} zend_end_try();

zend_try {

/* Cleanup static data for functions and arrays.

if (EG(full_tables_cleanup)) {

zend_hash_apply(EG(function_table), (apply_func_t) zend_cleanup_function_data_full TSRMLS_CC);

zend_hash_apply(EG(class_table), (apply_func_t) zend_cleanup_class_data TSRMLS_CC);

} else {

zend_hash_reverse_apply(EG(function_table), (apply_func_t) zend_cleanup_function_data TSRMLS_CC);

zend_hash_reverse_apply(EG(class_table), (apply_func_t) zend_cleanup_user_class_data TSRMLS_CC);

zend_cleanup_internal_classes(TSRMLS_C);

}

} zend_end_try();

zend_try {

zend_objects_store_free_object_storage(&EG(objects_store) TSRMLS_CC);

zend_vm_stack_destroy(TSRMLS_C);

/* Destroy all op arrays */

if (EG(full_tables_cleanup)) {

zend_hash_reverse_apply(EG(function_table), (apply_func_t) clean_non_persistent_function_full TSRMLS_CC);

zend_hash_reverse_apply(EG(class_table), (apply_func_t) clean_non_persistent_class_full TSRMLS_CC);

} else {

zend_hash_reverse_apply(EG(function_table), (apply_func_t) clean_non_persistent_function TSRMLS_CC);

zend_hash_reverse_apply(EG(class_table), (apply_func_t) clean_non_persistent_class TSRMLS_CC);

}

while (EG(symtable_cache_ptr)>=EG(symtable_cache)) {

zend_hash_destroy(*EG(symtable_cache_ptr));

FREE_HASHTABLE(*EG(symtable_cache_ptr));

EG(symtable_cache_ptr)--;

}

} zend_end_try();

zend_try {

clean_non_persistent_constants(TSRMLS_C);

} zend_end_try();

zend_try {

#if 0&&ZEND_DEBUG

signal(SIGSEGV, original_sigsegv_handler);

zend_hash_destroy(&EG(included_files));

zend_stack_destroy(&EG(user_error_handlers_error_reporting));

zend_ptr_stack_destroy(&EG(user_error_handlers));

zend_ptr_stack_destroy(&EG(user_exception_handlers));

zend_objects_store_destroy(&EG(objects_store));

if (EG(in_autoload)) {

zend_hash_destroy(EG(in_autoload));

FREE_HASHTABLE(EG(in_autoload));

}

} zend_end_try();

zend_shutdown_fpu(TSRMLS_C);

EG(active) = 0;

}

ZEND_API const char *get_active_class_name(const char **space TSRMLS_DC) /* {{{ */

{

if (!zend_is_executing(TSRMLS_C)) {

if (space) {

*space = "";

}

return "";

}

switch (EG(current_execute_data)->function_state.function->type) {

case ZEND_USER_FUNCTION:

case ZEND_INTERNAL_FUNCTION:

{

zend_class_entry *ce = EG(current_execute_data)->function_state.function->common.scope;

if (space) {

*space = ce ? "::" : "";

}

return ce ? ce->name : "";

}

default:

if (space) {

*space = "";

}

return "";

}

}

ZEND_API const char *get_active_function_name(TSRMLS_D) /* {{{ */

{

if (!zend_is_executing(TSRMLS_C)) {

return NULL;

}

switch (EG(current_execute_data)->function_state.function->type) {

case ZEND_USER_FUNCTION: {

const char *function_name = ((zend_op_array *) EG(current_execute_data)->function_state.function)->function_name;

if (function_name) {

return function_name;

} else {

return "main";

}

}

break;

case ZEND_INTERNAL_FUNCTION:

return ((zend_internal_function *) EG(current_execute_data)->function_state.function)->function_name;

break;

default:

return NULL;

}

}

ZEND_API const char *zend_get_executed_filename(TSRMLS_D) /* {{{ */

{

if (EG(active_op_array)) {

return EG(active_op_array)->filename;

} else {

return "[no active file]";

}

}

ZEND_API uint zend_get_executed_lineno(TSRMLS_D) /* {{{ */

{

if(EG(exception) && EG(opline_ptr) && active_opline->opcode == ZEND_HANDLE_EXCEPTION &&

active_opline->lineno == 0 && EG(opline_before_exception)) {

return EG(opline_before_exception)->lineno;

}

if (EG(opline_ptr)) {

return active_opline->lineno;

} else {

return 0;

}

}

ZEND_API zend_bool zend_is_executing(TSRMLS_D) /* {{{ */

{

return EG(in_execution);

}

ZEND_API void _zval_ptr_dtor(zval **zval_ptr ZEND_FILE_LINE_DC) /* {{{ */

{

i_zval_ptr_dtor(*zval_ptr ZEND_FILE_LINE_RELAY_CC);

}

ZEND_API void _zval_internal_ptr_dtor(zval **zval_ptr ZEND_FILE_LINE_DC) /* {{{ */

{

#if DEBUG_ZEND>=2

printf("Reducing refcount for %x (%x): %d->%d\n", *zval_ptr, zval_ptr, Z_REFCOUNT_PP(zval_ptr), Z_REFCOUNT_PP(zval_ptr) - 1);

Z_DELREF_PP(zval_ptr);

if (Z_REFCOUNT_PP(zval_ptr) == 0) {

zval_internal_dtor(*zval_ptr);

free(*zval_ptr);

} else if (Z_REFCOUNT_PP(zval_ptr) == 1) {

Z_UNSET_ISREF_PP(zval_ptr);

}

}

ZEND_API int zend_is_true(zval *op) /* {{{ */

{

return i_zend_is_true(op);

}

#include "../TSRM/tsrm_strtok_r.h"

#define IS_VISITED_CONSTANT IS_CONSTANT_INDEX

#define IS_CONSTANT_VISITED(p) (Z_TYPE_P(p) & IS_VISITED_CONSTANT)

#define Z_REAL_TYPE_P(p) (Z_TYPE_P(p) & ~IS_VISITED_CONSTANT)

#define MARK_CONSTANT_VISITED(p) Z_TYPE_P(p) |= IS_VISITED_CONSTANT

static void zval_deep_copy(zval **p)

{

zval *value;

ALLOC_ZVAL(value);

*value = **p;

Z_TYPE_P(value) &= ~IS_CONSTANT_INDEX;

zval_copy_ctor(value);

Z_TYPE_P(value) = Z_TYPE_PP(p);

INIT_PZVAL(value);

*p = value;

}

ZEND_API int zval_update_constant_ex(zval **pp, void *arg, zend_class_entry *scope TSRMLS_DC) /* {{{ */

{

zval *p = *pp;

zend_bool inline_change = (zend_bool) (zend_uintptr_t) arg;

zval const_value;

char *colon;

if (IS_CONSTANT_VISITED(p)) {

zend_error(E_ERROR, "Cannot declare self-referencing constant '%s'", Z_STRVAL_P(p));

} else if ((Z_TYPE_P(p) & IS_CONSTANT_TYPE_MASK) == IS_CONSTANT) {

int refcount;

zend_uchar is_ref;

SEPARATE_ZVAL_IF_NOT_REF(pp);

p = *pp;

MARK_CONSTANT_VISITED(p);

refcount = Z_REFCOUNT_P(p);

is_ref = Z_ISREF_P(p);

if (!zend_get_constant_ex(p->value.str.val, p->value.str.len, &const_value, scope, Z_REAL_TYPE_P(p) TSRMLS_CC)) {

char *actual = Z_STRVAL_P(p);

if ((colon = (char*)zend_memrchr(Z_STRVAL_P(p), ':', Z_STRLEN_P(p)))) {

zend_error(E_ERROR, "Undefined class constant '%s'", Z_STRVAL_P(p));

Z_STRLEN_P(p) -= ((colon - Z_STRVAL_P(p)) + 1);

if (inline_change) {

colon = estrndup(colon, Z_STRLEN_P(p));

str_efree(Z_STRVAL_P(p));

Z_STRVAL_P(p) = colon;

} else {

Z_STRVAL_P(p) = colon + 1;

}

} else {

char *save = actual, *slash;

int actual_len = Z_STRLEN_P(p);

if ((Z_TYPE_P(p) & IS_CONSTANT_UNQUALIFIED) && (slash = (char *)zend_memrchr(actual, '\\', actual_len))) {

actual = slash + 1;

actual_len -= (actual - Z_STRVAL_P(p));

if (inline_change) {

actual = estrndup(actual, actual_len);

Z_STRVAL_P(p) = actual;

Z_STRLEN_P(p) = actual_len;

}

}

if (actual[0] == '\\') {

if (inline_change) {

memmove(Z_STRVAL_P(p), Z_STRVAL_P(p)+1, Z_STRLEN_P(p));

--Z_STRLEN_P(p);

} else {

++actual;

}

--actual_len;

}

if ((Z_TYPE_P(p) & IS_CONSTANT_UNQUALIFIED) == 0) {

int fix_save = 0;

if (save[0] == '\\') {

save++;

fix_save = 1;

}

zend_error(E_ERROR, "Undefined constant '%s'", save);

if (fix_save) {

save--;

}

if (inline_change && !IS_INTERNED(save)) {

efree(save);

}

save = NULL;

}

if (inline_change && save && save != actual && !IS_INTERNED(save)) {

efree(save);

}

zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'", actual, actual);

p->type = IS_STRING;

if (!inline_change) {

Z_STRVAL_P(p) = actual;

Z_STRLEN_P(p) = actual_len;

zval_copy_ctor(p);

}

}

} else {

if (inline_change) {

STR_FREE(Z_STRVAL_P(p));

}

*p = const_value;

}

Z_SET_REFCOUNT_P(p, refcount);

Z_SET_ISREF_TO_P(p, is_ref);

} else if (Z_TYPE_P(p) == IS_CONSTANT_ARRAY) {

zval **element, *new_val;

char *str_index;

uint str_index_len;

ulong num_index;

int ret;

SEPARATE_ZVAL_IF_NOT_REF(pp);

p = *pp;

Z_TYPE_P(p) = IS_ARRAY;

if (!inline_change) {

zval *tmp;

HashTable *tmp_ht = NULL;

ALLOC_HASHTABLE(tmp_ht);

zend_hash_init(tmp_ht, zend_hash_num_elements(Z_ARRVAL_P(p)), NULL, ZVAL_PTR_DTOR, 0);

zend_hash_copy(tmp_ht, Z_ARRVAL_P(p), (copy_ctor_func_t) zval_deep_copy, (void *) &tmp, sizeof(zval *));

Z_ARRVAL_P(p) = tmp_ht;

}

/* First go over the array and see if there are any constant indices */

zend_hash_internal_pointer_reset(Z_ARRVAL_P(p));

while (zend_hash_get_current_data(Z_ARRVAL_P(p), (void **) &element) == SUCCESS) {

if (!(Z_TYPE_PP(element) & IS_CONSTANT_INDEX)) {

zend_hash_move_forward(Z_ARRVAL_P(p));

continue;

}

Z_TYPE_PP(element) &= ~IS_CONSTANT_INDEX;

if (zend_hash_get_current_key_ex(Z_ARRVAL_P(p), &str_index, &str_index_len, &num_index, 0, NULL) != HASH_KEY_IS_STRING) {

zend_hash_move_forward(Z_ARRVAL_P(p));

continue;

}

if (!zend_get_constant_ex(str_index, str_index_len - 3, &const_value, scope, str_index[str_index_len - 2] TSRMLS_CC)) {

char *actual;

const char *save = str_index;

if ((colon = (char*)zend_memrchr(str_index, ':', str_index_len - 3))) {

zend_error(E_ERROR, "Undefined class constant '%s'", str_index);

str_index_len -= ((colon - str_index) + 1);

str_index = colon;

} else {

if (str_index[str_index_len - 2] & IS_CONSTANT_UNQUALIFIED) {

if ((actual = (char *)zend_memrchr(str_index, '\\', str_index_len - 3))) {

actual++;

str_index_len -= (actual - str_index);

str_index = actual;

}

}

if (str_index[0] == '\\') {

++str_index;

--str_index_len;

}

if (save[0] == '\\') {

++save;

}

if ((str_index[str_index_len - 2] & IS_CONSTANT_UNQUALIFIED) == 0) {

zend_error(E_ERROR, "Undefined constant '%s'", save);

}

zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'", str_index, str_index);

}

ZVAL_STRINGL(&const_value, str_index, str_index_len-3, 1);

}

if (Z_REFCOUNT_PP(element) > 1) {

ALLOC_ZVAL(new_val);

*new_val = **element;

zval_copy_ctor(new_val);

Z_SET_REFCOUNT_P(new_val, 1);

Z_UNSET_ISREF_P(new_val);

/* preserve this bit for inheritance */

Z_TYPE_PP(element) |= IS_CONSTANT_INDEX;

zval_ptr_dtor(element);

*element = new_val;

}

switch (Z_TYPE(const_value)) {

case IS_STRING:

ret = zend_symtable_update_current_key(Z_ARRVAL_P(p), Z_STRVAL(const_value), Z_STRLEN(const_value) + 1, HASH_UPDATE_KEY_IF_BEFORE);

break;

case IS_BOOL:

case IS_LONG:

ret = zend_hash_update_current_key_ex(Z_ARRVAL_P(p), HASH_KEY_IS_LONG, NULL, 0, Z_LVAL(const_value), HASH_UPDATE_KEY_IF_BEFORE, NULL);

break;

case IS_DOUBLE:

ret = zend_hash_update_current_key_ex(Z_ARRVAL_P(p), HASH_KEY_IS_LONG, NULL, 0, zend_dval_to_lval(Z_DVAL(const_value)), HASH_UPDATE_KEY_IF_BEFORE, NULL);

break;

case IS_NULL:

ret = zend_hash_update_current_key_ex(Z_ARRVAL_P(p), HASH_KEY_IS_STRING, "", 1, 0, HASH_UPDATE_KEY_IF_BEFORE, NULL);

break;

default:

ret = SUCCESS;

break;

}

if (ret == SUCCESS) {

zend_hash_move_forward(Z_ARRVAL_P(p));

}

zval_dtor(&const_value);

}

zend_hash_apply_with_argument(Z_ARRVAL_P(p), (apply_func_arg_t) zval_update_constant_inline_change, (void *) scope TSRMLS_CC);

zend_hash_internal_pointer_reset(Z_ARRVAL_P(p));

}

return 0;

}

ZEND_API int zval_update_constant_inline_change(zval **pp, void *scope TSRMLS_DC) /* {{{ */

{

return zval_update_constant_ex(pp, (void*)1, scope TSRMLS_CC);

}

ZEND_API int zval_update_constant_no_inline_change(zval **pp, void *scope TSRMLS_DC) /* {{{ */

{

return zval_update_constant_ex(pp, (void*)0, scope TSRMLS_CC);

}

ZEND_API int zval_update_constant(zval **pp, void *arg TSRMLS_DC) /* {{{ */

{

return zval_update_constant_ex(pp, arg, NULL TSRMLS_CC);

}

int call_user_function(HashTable *function_table, zval **object_pp, zval *function_name, zval *retval_ptr, zend_uint param_count, zval *params[] TSRMLS_DC) /* {{{ */

{

zval ***params_array;

zend_uint i;

int ex_retval;

zval *local_retval_ptr = NULL;

if (param_count) {

params_array = (zval ***) emalloc(sizeof(zval **)*param_count);

for (i=0; i<param_count; i++) {

params_array[i] = &params[i];

}

} else {

params_array = NULL;

}

ex_retval = call_user_function_ex(function_table, object_pp, function_name, &local_retval_ptr, param_count, params_array, 1, NULL TSRMLS_CC);

if (local_retval_ptr) {

COPY_PZVAL_TO_ZVAL(*retval_ptr, local_retval_ptr);

} else {

INIT_ZVAL(*retval_ptr);

}

if (params_array) {

efree(params_array);

}

return ex_retval;

}

int call_user_function_ex(HashTable *function_table, zval **object_pp, zval *function_name, zval **retval_ptr_ptr, zend_uint param_count, zval **params[], int no_separation, HashTable *symbol_table TSRMLS_DC) /* {{{ */

{

zend_fcall_info fci;

fci.size = sizeof(fci);

fci.function_table = function_table;

fci.object_ptr = object_pp ? *object_pp : NULL;

fci.function_name = function_name;

fci.retval_ptr_ptr = retval_ptr_ptr;

fci.param_count = param_count;

fci.params = params;

fci.no_separation = (zend_bool) no_separation;

fci.symbol_table = symbol_table;

return zend_call_function(&fci, NULL TSRMLS_CC);

}

int zend_call_function(zend_fcall_info *fci, zend_fcall_info_cache *fci_cache TSRMLS_DC) /* {{{ */

{

zend_uint i;

zval **original_return_value;

HashTable *calling_symbol_table;

zend_op_array *original_op_array;

zend_op **original_opline_ptr;

zend_class_entry *current_scope;

zend_class_entry *current_called_scope;

zend_class_entry *calling_scope = NULL;

zend_class_entry *called_scope = NULL;

zval *current_this;

zend_execute_data execute_data;

zend_fcall_info_cache fci_cache_local;

*fci->retval_ptr_ptr = NULL;

if (!EG(active)) {

return FAILURE; /* executor is already inactive */

}

if (EG(exception)) {

return FAILURE; /* we would result in an instable executor otherwise */

}

switch (fci->size) {

case sizeof(zend_fcall_info):

break; /* nothing to do currently */

default:

zend_error(E_ERROR, "Corrupted fcall_info provided to zend_call_function()");

break;

}

/* Initialize execute_data */

if (EG(current_execute_data)) {

execute_data = *EG(current_execute_data);

EX(op_array) = NULL;

EX(opline) = NULL;

EX(object) = NULL;

} else {

/* This only happens when we're called outside any execute()'s

memset(&execute_data, 0, sizeof(zend_execute_data));

}

if (!fci_cache || !fci_cache->initialized) {

char *callable_name;

char *error = NULL;

if (!fci_cache) {

fci_cache = &fci_cache_local;

}

if (!zend_is_callable_ex(fci->function_name, fci->object_ptr, IS_CALLABLE_CHECK_SILENT, &callable_name, NULL, fci_cache, &error TSRMLS_CC)) {

if (error) {

zend_error(E_WARNING, "Invalid callback %s, %s", callable_name, error);

efree(error);

}

if (callable_name) {

efree(callable_name);

}

return FAILURE;

} else if (error) {

/* Capitalize the first latter of the error message */

if (error[0] >= 'a' && error[0] <= 'z') {

error[0] += ('A' - 'a');

}

zend_error(E_STRICT, "%s", error);

efree(error);

}

efree(callable_name);

}

EX(function_state).function = fci_cache->function_handler;

calling_scope = fci_cache->calling_scope;

called_scope = fci_cache->called_scope;

fci->object_ptr = fci_cache->object_ptr;

EX(object) = fci->object_ptr;

if (fci->object_ptr && Z_TYPE_P(fci->object_ptr) == IS_OBJECT &&

(!EG(objects_store).object_buckets || !EG(objects_store).object_buckets[Z_OBJ_HANDLE_P(fci->object_ptr)].valid)) {

return FAILURE;

}

if (EX(function_state).function->common.fn_flags & (ZEND_ACC_ABSTRACT|ZEND_ACC_DEPRECATED)) {

if (EX(function_state).function->common.fn_flags & ZEND_ACC_ABSTRACT) {

zend_error_noreturn(E_ERROR, "Cannot call abstract method %s::%s()", EX(function_state).function->common.scope->name, EX(function_state).function->common.function_name);

}

if (EX(function_state).function->common.fn_flags & ZEND_ACC_DEPRECATED) {

zend_error(E_DEPRECATED, "Function %s%s%s() is deprecated",

EX(function_state).function->common.scope ? EX(function_state).function->common.scope->name : "",

EX(function_state).function->common.scope ? "::" : "",

EX(function_state).function->common.function_name);

}

}

ZEND_VM_STACK_GROW_IF_NEEDED(fci->param_count + 1);

for (i=0; i<fci->param_count; i++) {

zval *param;

if (ARG_SHOULD_BE_SENT_BY_REF(EX(function_state).function, i + 1)) {

if (!PZVAL_IS_REF(*fci->params[i]) && Z_REFCOUNT_PP(fci->params[i]) > 1) {

zval *new_zval;

if (fci->no_separation &&

!ARG_MAY_BE_SENT_BY_REF(EX(function_state).function, i + 1)) {

if (i || UNEXPECTED(ZEND_VM_STACK_ELEMETS(EG(argument_stack)) == (EG(argument_stack)->top))) {

/* hack to clean up the stack */

zend_vm_stack_push((void *) (zend_uintptr_t)i TSRMLS_CC);

zend_vm_stack_clear_multiple(0 TSRMLS_CC);

}

zend_error(E_WARNING, "Parameter %d to %s%s%s() expected to be a reference, value given",

i+1,

EX(function_state).function->common.scope ? EX(function_state).function->common.scope->name : "",

EX(function_state).function->common.scope ? "::" : "",

EX(function_state).function->common.function_name);

return FAILURE;

}

ALLOC_ZVAL(new_zval);

*new_zval = **fci->params[i];

zval_copy_ctor(new_zval);

Z_SET_REFCOUNT_P(new_zval, 1);

Z_DELREF_PP(fci->params[i]);

*fci->params[i] = new_zval;

}

Z_ADDREF_PP(fci->params[i]);

Z_SET_ISREF_PP(fci->params[i]);

param = *fci->params[i];

} else if (PZVAL_IS_REF(*fci->params[i]) &&

/* don't separate references for __call */

(EX(function_state).function->common.fn_flags & ZEND_ACC_CALL_VIA_HANDLER) == 0 ) {

ALLOC_ZVAL(param);

*param = **(fci->params[i]);

INIT_PZVAL(param);

zval_copy_ctor(param);

} else if (*fci->params[i] != &EG(uninitialized_zval)) {

Z_ADDREF_PP(fci->params[i]);

param = *fci->params[i];

} else {

ALLOC_ZVAL(param);

*param = **(fci->params[i]);

INIT_PZVAL(param);

}

zend_vm_stack_push(param TSRMLS_CC);

}

EX(function_state).arguments = zend_vm_stack_top(TSRMLS_C);

zend_vm_stack_push((void*)(zend_uintptr_t)fci->param_count TSRMLS_CC);

current_scope = EG(scope);

EG(scope) = calling_scope;

current_this = EG(This);

current_called_scope = EG(called_scope);

if (called_scope) {

EG(called_scope) = called_scope;

} else if (EX(function_state).function->type != ZEND_INTERNAL_FUNCTION) {

EG(called_scope) = NULL;

}

if (fci->object_ptr) {

if ((EX(function_state).function->common.fn_flags & ZEND_ACC_STATIC)) {

EG(This) = NULL;

} else {

EG(This) = fci->object_ptr;

if (!PZVAL_IS_REF(EG(This))) {

Z_ADDREF_P(EG(This)); /* For $this pointer */

} else {

zval *this_ptr;

ALLOC_ZVAL(this_ptr);

*this_ptr = *EG(This);

INIT_PZVAL(this_ptr);

zval_copy_ctor(this_ptr);

EG(This) = this_ptr;

}

}

} else {

EG(This) = NULL;

}

EX(prev_execute_data) = EG(current_execute_data);

EG(current_execute_data) = &execute_data;

if (EX(function_state).function->type == ZEND_USER_FUNCTION) {

calling_symbol_table = EG(active_symbol_table);

EG(scope) = EX(function_state).function->common.scope;

if (fci->symbol_table) {

EG(active_symbol_table) = fci->symbol_table;

} else {

EG(active_symbol_table) = NULL;

}

original_return_value = EG(return_value_ptr_ptr);

original_op_array = EG(active_op_array);

EG(return_value_ptr_ptr) = fci->retval_ptr_ptr;

EG(active_op_array) = (zend_op_array *) EX(function_state).function;

original_opline_ptr = EG(opline_ptr);

if (EG(active_op_array)->fn_flags & ZEND_ACC_GENERATOR) {

*fci->retval_ptr_ptr = zend_generator_create_zval(EG(active_op_array) TSRMLS_CC);

} else {

zend_execute(EG(active_op_array) TSRMLS_CC);

}

if (!fci->symbol_table && EG(active_symbol_table)) {

zend_clean_and_cache_symbol_table(EG(active_symbol_table) TSRMLS_CC);

}

EG(active_symbol_table) = calling_symbol_table;

EG(active_op_array) = original_op_array;

EG(return_value_ptr_ptr)=original_return_value;

EG(opline_ptr) = original_opline_ptr;

} else if (EX(function_state).function->type == ZEND_INTERNAL_FUNCTION) {

int call_via_handler = (EX(function_state).function->common.fn_flags & ZEND_ACC_CALL_VIA_HANDLER) != 0;

ALLOC_INIT_ZVAL(*fci->retval_ptr_ptr);

if (EX(function_state).function->common.scope) {

EG(scope) = EX(function_state).function->common.scope;

}

if(EXPECTED(zend_execute_internal == NULL)) {

/* saves one function call if zend_execute_internal is not used */

((zend_internal_function *) EX(function_state).function)->handler(fci->param_count, *fci->retval_ptr_ptr, fci->retval_ptr_ptr, fci->object_ptr, 1 TSRMLS_CC);

} else {

zend_execute_internal(&execute_data, fci, 1 TSRMLS_CC);

}

/* We shouldn't fix bad extensions here,

if (EG(exception) && fci->retval_ptr_ptr) {

zval_ptr_dtor(fci->retval_ptr_ptr);

*fci->retval_ptr_ptr = NULL;

}

if (call_via_handler) {

/* We must re-initialize function again */

fci_cache->initialized = 0;

}

} else { /* ZEND_OVERLOADED_FUNCTION */

ALLOC_INIT_ZVAL(*fci->retval_ptr_ptr);

/* Not sure what should be done here if it's a static method */

if (fci->object_ptr) {

Z_OBJ_HT_P(fci->object_ptr)->call_method(EX(function_state).function->common.function_name, fci->param_count, *fci->retval_ptr_ptr, fci->retval_ptr_ptr, fci->object_ptr, 1 TSRMLS_CC);

} else {

zend_error_noreturn(E_ERROR, "Cannot call overloaded function for non-object");

}

if (EX(function_state).function->type == ZEND_OVERLOADED_FUNCTION_TEMPORARY) {

efree((char*)EX(function_state).function->common.function_name);

}

efree(EX(function_state).function);

if (EG(exception) && fci->retval_ptr_ptr) {

zval_ptr_dtor(fci->retval_ptr_ptr);

*fci->retval_ptr_ptr = NULL;

}

}

zend_vm_stack_clear_multiple(0 TSRMLS_CC);

if (EG(This)) {