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xmark.c
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xmark.c
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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2017 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: fate0 <fate0@fatezero.org> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "zend_compile.h"
#include "zend_types.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "php_xmark.h"
ZEND_DECLARE_MODULE_GLOBALS(xmark)
#if PHP_VERSION_ID >= 70400
#define XMARK_ASSIGN_CONCAT 500
#else
#define XMARK_ASSIGN_CONCAT ZEND_ASSIGN_CONCAT
#endif
/* These are most copied from zend_execute.c: zend_fetch_dimension_address */
static int php_xmark_make_real_object(zval *object) /* {{{ */ {
if (UNEXPECTED(Z_TYPE_P(object) != IS_OBJECT)) {
if (EXPECTED(Z_TYPE_P(object) <= IS_FALSE)) {
/* nothing to destroy */
} else if (EXPECTED((Z_TYPE_P(object) == IS_STRING && Z_STRLEN_P(object) == 0))) {
zval_ptr_dtor_nogc(object);
} else {
return 0;
}
object_init(object);
zend_error(E_WARNING, "Creating default object from empty value");
}
return 1;
}
/* }}} */
static zend_long php_xmark_check_string_offset(zval *dim, int type) /* {{{ */ {
zend_long offset;
try_again:
if (UNEXPECTED(Z_TYPE_P(dim) != IS_LONG)) {
switch(Z_TYPE_P(dim)) {
case IS_STRING:
if (IS_LONG == is_numeric_string(Z_STRVAL_P(dim), Z_STRLEN_P(dim), NULL, NULL, -1)) {
break;
}
if (type != BP_VAR_UNSET) {
zend_error(E_WARNING, "Illegal string offset '%s'", Z_STRVAL_P(dim));
}
break;
case IS_DOUBLE:
case IS_NULL:
case IS_FALSE:
case IS_TRUE:
zend_error(E_NOTICE, "String offset cast occurred");
break;
case IS_REFERENCE:
dim = Z_REFVAL_P(dim);
goto try_again;
default:
zend_error(E_WARNING, "Illegal offset type");
break;
}
offset = zval_get_long(dim);
} else {
offset = Z_LVAL_P(dim);
}
return offset;
}
/* }}} */
static zval *php_xmark_fetch_dimension_address_inner(HashTable *ht, const zval *dim, int dim_type, int type) /* {{{ */ {
zval *retval;
zend_string *offset_key;
zend_ulong hval;
try_again:
if (EXPECTED(Z_TYPE_P(dim) == IS_LONG)) {
hval = Z_LVAL_P(dim);
num_index:
retval = zend_hash_index_find(ht, hval);
if (retval == NULL) {
switch (type) {
case BP_VAR_R:
zend_error(E_NOTICE,"Undefined offset: " ZEND_LONG_FMT, hval);
/* break missing intentionally */
case BP_VAR_UNSET:
case BP_VAR_IS:
retval = &EG(uninitialized_zval);
break;
case BP_VAR_RW:
zend_error(E_NOTICE,"Undefined offset: " ZEND_LONG_FMT, hval);
/* break missing intentionally */
case BP_VAR_W:
retval = zend_hash_index_add_new(ht, hval, &EG(uninitialized_zval));
break;
}
}
} else if (EXPECTED(Z_TYPE_P(dim) == IS_STRING)) {
offset_key = Z_STR_P(dim);
if (dim_type != IS_CONST) {
if (ZEND_HANDLE_NUMERIC(offset_key, hval)) {
goto num_index;
}
}
str_index:
retval = zend_hash_find(ht, offset_key);
if (retval) {
/* support for $GLOBALS[...] */
if (UNEXPECTED(Z_TYPE_P(retval) == IS_INDIRECT)) {
retval = Z_INDIRECT_P(retval);
if (UNEXPECTED(Z_TYPE_P(retval) == IS_UNDEF)) {
switch (type) {
case BP_VAR_R:
zend_error(E_NOTICE, "Undefined index: %s", ZSTR_VAL(offset_key));
/* break missing intentionally */
case BP_VAR_UNSET:
case BP_VAR_IS:
retval = &EG(uninitialized_zval);
break;
case BP_VAR_RW:
zend_error(E_NOTICE,"Undefined index: %s", ZSTR_VAL(offset_key));
/* break missing intentionally */
case BP_VAR_W:
ZVAL_NULL(retval);
break;
}
}
}
} else {
switch (type) {
case BP_VAR_R:
zend_error(E_NOTICE, "Undefined index: %s", ZSTR_VAL(offset_key));
/* break missing intentionally */
case BP_VAR_UNSET:
case BP_VAR_IS:
retval = &EG(uninitialized_zval);
break;
case BP_VAR_RW:
zend_error(E_NOTICE,"Undefined index: %s", ZSTR_VAL(offset_key));
/* break missing intentionally */
case BP_VAR_W:
retval = zend_hash_add_new(ht, offset_key, &EG(uninitialized_zval));
break;
}
}
} else {
switch (Z_TYPE_P(dim)) {
case IS_NULL:
offset_key = ZSTR_EMPTY_ALLOC();
goto str_index;
case IS_DOUBLE:
hval = zend_dval_to_lval(Z_DVAL_P(dim));
goto num_index;
case IS_RESOURCE:
zend_error(E_NOTICE, "Resource ID#%dd used as offset, casting to integer (%dd)", Z_RES_HANDLE_P(dim), Z_RES_HANDLE_P(dim));
hval = Z_RES_HANDLE_P(dim);
goto num_index;
case IS_FALSE:
hval = 0;
goto num_index;
case IS_TRUE:
hval = 1;
goto num_index;
case IS_REFERENCE:
dim = Z_REFVAL_P(dim);
goto try_again;
default:
zend_error(E_WARNING, "Illegal offset type");
retval = (type == BP_VAR_W || type == BP_VAR_RW) ?
#if PHP_VERSION_ID < 70100
&EG(error_zval)
#else
NULL
#endif
: &EG(uninitialized_zval);
}
}
return retval;
}
/* }}} */
static void php_xmark_fetch_dimension_address(zval *result, zval *container, zval *dim, int dim_type, int type) /* {{{ */ {
zval *retval;
if (EXPECTED(Z_TYPE_P(container) == IS_ARRAY)) {
try_array:
SEPARATE_ARRAY(container);
fetch_from_array:
if (dim == NULL) {
retval = zend_hash_next_index_insert(Z_ARRVAL_P(container), &EG(uninitialized_zval));
if (UNEXPECTED(retval == NULL)) {
zend_error(E_WARNING, "Cannot add element to the array as the next element is already occupied");
#if PHP_VERSION_ID < 70100
retval = &EG(error_zval);
#else
ZVAL_ERROR(result);
return;
#endif
}
} else {
retval = php_xmark_fetch_dimension_address_inner(Z_ARRVAL_P(container), dim, dim_type, type);
}
ZVAL_INDIRECT(result, retval);
return;
} else if (EXPECTED(Z_TYPE_P(container) == IS_REFERENCE)) {
container = Z_REFVAL_P(container);
if (EXPECTED(Z_TYPE_P(container) == IS_ARRAY)) {
goto try_array;
}
}
if (EXPECTED(Z_TYPE_P(container) == IS_STRING)) {
if (type != BP_VAR_UNSET && UNEXPECTED(Z_STRLEN_P(container) == 0)) {
zval_ptr_dtor_nogc(container);
convert_to_array:
ZVAL_NEW_ARR(container);
zend_hash_init(Z_ARRVAL_P(container), 8, NULL, ZVAL_PTR_DTOR, 0);
goto fetch_from_array;
}
if (dim == NULL) {
zend_throw_error(NULL, "[] operator not supported for strings");
#if PHP_VERSION_ID < 70100
ZVAL_INDIRECT(result, &EG(error_zval));
#else
ZVAL_ERROR(result);
#endif
} else {
php_xmark_check_string_offset(dim, type);
#if PHP_VERSION_ID < 70100
ZVAL_INDIRECT(result, NULL); /* wrong string offset */
#else
ZVAL_ERROR(result);
#endif
}
} else if (EXPECTED(Z_TYPE_P(container) == IS_OBJECT)) {
if (!Z_OBJ_HT_P(container)->read_dimension) {
zend_throw_error(NULL, "Cannot use object as array");
#if PHP_VERSION_ID < 70100
retval = &EG(error_zval);
#else
ZVAL_ERROR(result);
#endif
} else {
retval = Z_OBJ_HT_P(container)->read_dimension(container, dim, type, result);
if (UNEXPECTED(retval == &EG(uninitialized_zval))) {
zend_class_entry *ce = Z_OBJCE_P(container);
ZVAL_NULL(result);
zend_error(E_NOTICE, "Indirect modification of overloaded element of %s has no effect", ZSTR_VAL(ce->name));
} else if (EXPECTED(retval && Z_TYPE_P(retval) != IS_UNDEF)) {
if (!Z_ISREF_P(retval)) {
if (Z_REFCOUNTED_P(retval) &&
Z_REFCOUNT_P(retval) > 1) {
if (Z_TYPE_P(retval) != IS_OBJECT) {
Z_DELREF_P(retval);
ZVAL_DUP(result, retval);
retval = result;
} else {
ZVAL_COPY_VALUE(result, retval);
retval = result;
}
}
if (Z_TYPE_P(retval) != IS_OBJECT) {
zend_class_entry *ce = Z_OBJCE_P(container);
zend_error(E_NOTICE, "Indirect modification of overloaded element of %s has no effect", ZSTR_VAL(ce->name));
}
} else if (UNEXPECTED(Z_REFCOUNT_P(retval) == 1)) {
ZVAL_UNREF(retval);
}
if (result != retval) {
ZVAL_INDIRECT(result, retval);
}
} else {
#if PHP_VERSION_ID < 70100
ZVAL_INDIRECT(result, &EG(error_zval));
#else
ZVAL_ERROR(result);
#endif
}
}
} else if (EXPECTED(Z_TYPE_P(container) <= IS_FALSE)) {
if (UNEXPECTED(XMARK_ISERR(container))) {
#if PHP_VERSION_ID < 70100
ZVAL_INDIRECT(result, &EG(error_zval));
#else
ZVAL_ERROR(result);
#endif
} else if (type != BP_VAR_UNSET) {
goto convert_to_array;
} else {
/* for read-mode only */
ZVAL_NULL(result);
}
} else {
if (type == BP_VAR_UNSET) {
zend_error(E_WARNING, "Cannot unset offset in a non-array variable");
ZVAL_NULL(result);
} else {
zend_error(E_WARNING, "Cannot use a scalar value as an array");
#if PHP_VERSION_ID < 70100
ZVAL_INDIRECT(result, &EG(error_zval));
#else
ZVAL_ERROR(result);
#endif
}
}
}
/* }}} */
static void php_xmark_assign_op_overloaded_property(zval *object, zval *property, void **cache_slot, zval *value, binary_op_type binary_op, zval *result) /* {{{ */ {
zval *z;
zval rv, obj;
zval *zptr;
zval *z_fname;
zval call_func_ret, call_func_params[2];
ZVAL_OBJ(&obj, Z_OBJ_P(object));
Z_ADDREF(obj);
if (Z_OBJ_HT(obj)->read_property &&
(z = Z_OBJ_HT(obj)->read_property(&obj, property, BP_VAR_R, cache_slot, &rv)) != NULL) {
if (EG(exception)) {
OBJ_RELEASE(Z_OBJ(obj));
return;
}
if (Z_TYPE_P(z) == IS_OBJECT && Z_OBJ_HT_P(z)->get) {
zval rv2;
zval *value = Z_OBJ_HT_P(z)->get(z, &rv2);
if (z == &rv) {
zval_ptr_dtor(&rv);
}
ZVAL_COPY_VALUE(z, value);
}
zptr = z;
ZVAL_DEREF(z);
SEPARATE_ZVAL_NOREF(z);
// only for ZEND_ASSIGN_CONCAT
z_fname = zend_hash_index_find(&XMARK_G(callbacks), XMARK_ASSIGN_CONCAT);
if (z_fname) {
ZVAL_COPY_VALUE(&call_func_params[0], z);
ZVAL_COPY_VALUE(&call_func_params[1], value);
if (SUCCESS != call_user_function(EG(function_table), NULL, z_fname, &call_func_ret, 2, call_func_params)) {
zend_error(E_WARNING, "call function error");
}
zval_ptr_dtor_nogc(z);
ZVAL_COPY_VALUE(z, &call_func_ret);
} else {
binary_op(z, z, value);
}
Z_OBJ_HT(obj)->write_property(&obj, property, z, cache_slot);
if (result) {
ZVAL_COPY(result, z);
}
zval_ptr_dtor(zptr);
} else {
zend_error(E_WARNING, "Attempt to assign property of non-object");
if (result) {
ZVAL_NULL(result);
}
}
OBJ_RELEASE(Z_OBJ(obj));
}
/* }}} */
static void php_xmark_binary_assign_op_obj_dim(zval *object, zval *property, zval *value, zval *retval, binary_op_type binary_op) /* {{{ */ {
zval *z;
zval rv, res;
zval *z_fname;
zval call_func_ret, call_func_params[2];
if (Z_OBJ_HT_P(object)->read_dimension &&
(z = Z_OBJ_HT_P(object)->read_dimension(object, property, BP_VAR_R, &rv)) != NULL) {
if (Z_TYPE_P(z) == IS_OBJECT && Z_OBJ_HT_P(z)->get) {
zval rv2;
zval *value = Z_OBJ_HT_P(z)->get(z, &rv2);
if (z == &rv) {
zval_ptr_dtor(&rv);
}
ZVAL_COPY_VALUE(z, value);
}
// only for ZEND_ASSIGN_CONCAT
z_fname = zend_hash_index_find(&XMARK_G(callbacks), XMARK_ASSIGN_CONCAT);
if (z_fname) {
ZVAL_COPY_VALUE(&call_func_params[0], Z_ISREF_P(z) ? Z_REFVAL_P(z) : z);
ZVAL_COPY_VALUE(&call_func_params[1], value);
if (SUCCESS != call_user_function(EG(function_table), NULL, z_fname, &call_func_ret, 2, call_func_params)) {
zend_error(E_WARNING, "call function error");
}
ZVAL_COPY_VALUE(&res, &call_func_ret);
} else {
binary_op(&res, Z_ISREF_P(z) ? Z_REFVAL_P(z) : z, value);
}
Z_OBJ_HT_P(object)->write_dimension(object, property, &res);
if (z == &rv) {
zval_ptr_dtor(&rv);
}
if (retval) {
ZVAL_COPY(retval, &res);
}
zval_ptr_dtor(&res);
} else {
zend_error(E_WARNING, "Attempt to assign property of non-object");
if (retval) {
ZVAL_NULL(retval);
}
}
}
/* }}} */
/* Copied codes end */
/* These are most copied from taint.c: zend_fetch_dimension_address */
static zval *php_xmark_get_zval_ptr_tmpvar(zend_execute_data *execute_data, uint32_t var, zend_free_op *should_free) /* {{{ */ {
zval *ret = EX_VAR(var);
if (should_free) {
*should_free = ret;
}
ZVAL_DEREF(ret);
return ret;
}
/* }}} */
#ifndef CV_DEF_OF
#define CV_DEF_OF(i) (EX(func)->op_array.vars[i])
#endif
static zval *php_xmark_get_zval_ptr_cv(zend_execute_data *execute_data, uint32_t var, int type, int force_ret) /* {{{ */ {
zval *ret = EX_VAR(var);
if (UNEXPECTED(Z_TYPE_P(ret) == IS_UNDEF)) {
if (force_ret) {
switch (type) {
case BP_VAR_R:
case BP_VAR_UNSET:
zend_error(E_NOTICE, "Undefined variable: %s", ZSTR_VAL(CV_DEF_OF(EX_VAR_TO_NUM(var))));
case BP_VAR_IS:
ret = &EG(uninitialized_zval);
break;
case BP_VAR_RW:
zend_error(E_NOTICE, "Undefined variable: %s", ZSTR_VAL(CV_DEF_OF(EX_VAR_TO_NUM(var))));
case BP_VAR_W:
ZVAL_NULL(ret);
break;
}
} else {
return NULL;
}
} else {
ZVAL_DEREF(ret);
}
return ret;
}
/* }}} */
static zval *php_xmark_get_zval_ptr(zend_execute_data *execute_data, int op_type, znode_op op, zend_free_op *should_free, int type, int force_ret) /* {{{ */ {
if (op_type & (IS_TMP_VAR|IS_VAR)) {
return php_xmark_get_zval_ptr_tmpvar(execute_data, op.var, should_free);
} else {
*should_free = NULL;
if (op_type == IS_CONST) {
return EX_CONSTANT(op);
} else if (op_type == IS_CV) {
return php_xmark_get_zval_ptr_cv(execute_data, op.var, type, force_ret);
} else {
return NULL;
}
}
}
/* }}} */
static zval *php_xmark_get_zval_ptr_ptr_var(zend_execute_data *execute_data, uint32_t var, zend_free_op *should_free) /* {{{ */ {
zval *ret = EX_VAR(var);
if (EXPECTED(Z_TYPE_P(ret) == IS_INDIRECT)) {
*should_free = NULL;
ret = Z_INDIRECT_P(ret);
} else {
*should_free = ret;
}
return ret;
}
/* }}} */
static zval *php_xmark_get_zval_ptr_ptr(zend_execute_data *execute_data, int op_type, znode_op op, zend_free_op *should_free, int type) /* {{{ */ {
if (op_type == IS_CV) {
*should_free = NULL;
return php_xmark_get_zval_ptr_cv(execute_data, op.var, type, 1);
} else if (op_type == IS_VAR) {
ZEND_ASSERT(op_type == IS_VAR);
return php_xmark_get_zval_ptr_ptr_var(execute_data, op.var, should_free);
} else if (op_type == IS_UNUSED) {
*should_free = NULL;
return &EX(This);
} else {
ZEND_ASSERT(0);
}
}
/* }}} */
static int php_xmark_binary_assign_op_helper(binary_op_type binary_op, zend_execute_data *execute_data) /* {{{ */ {
const zend_op *opline = execute_data->opline;
zval *var_ptr, *value;
zend_free_op free_op1, free_op2;
zval *z_fname;
zval call_func_ret, call_func_params[2];
value = php_xmark_get_zval_ptr(execute_data, opline->op2_type, opline->op2, &free_op2, BP_VAR_R, 1);
var_ptr = php_xmark_get_zval_ptr_ptr(execute_data, opline->op1_type, opline->op1, &free_op1, BP_VAR_RW);
if (opline->op1_type == IS_VAR) {
if (var_ptr == NULL || XMARK_ISERR(var_ptr)) {
return ZEND_USER_OPCODE_DISPATCH;
}
}
z_fname = zend_hash_index_find(&XMARK_G(callbacks), XMARK_ASSIGN_CONCAT);
if (z_fname) {
ZVAL_COPY_VALUE(&call_func_params[0], var_ptr);
ZVAL_COPY_VALUE(&call_func_params[1], value);
if (SUCCESS != call_user_function(EG(function_table), NULL, z_fname, &call_func_ret, 2, call_func_params)) {
zend_error(E_WARNING, "call function error");
}
SEPARATE_ZVAL_NOREF(var_ptr);
zval_ptr_dtor_nogc(var_ptr);
ZVAL_COPY_VALUE(var_ptr, &call_func_ret);
} else {
SEPARATE_ZVAL_NOREF(var_ptr);
binary_op(var_ptr, var_ptr, value);
}
if (XMARK_RET_USED(opline)) {
ZVAL_COPY(EX_VAR(opline->result.var), var_ptr);
}
if ((XMARK_OP1_TYPE(opline) & (IS_VAR|IS_TMP_VAR)) && free_op1) {
zval_ptr_dtor_nogc(free_op1);
}
if ((XMARK_OP2_TYPE(opline) & (IS_VAR|IS_TMP_VAR)) && free_op2) {
zval_ptr_dtor_nogc(free_op2);
}
execute_data->opline++;
return ZEND_USER_OPCODE_CONTINUE;
}
/* }}} */
static int php_xmark_binary_assign_op_obj_helper(binary_op_type binary_op, zend_execute_data *execute_data) /* {{{ */ {
const zend_op *opline = execute_data->opline;
zval *object, *property, *var_ptr, *value;
zend_free_op free_op1, free_op2, free_op_data;
zval *z_fname;
zval call_func_ret, call_func_params[2];
object = php_xmark_get_zval_ptr_ptr(execute_data, opline->op1_type, opline->op1, &free_op1, BP_VAR_RW);
if (opline->op1_type == IS_UNUSED && Z_OBJ_P(object) == NULL) {
return ZEND_USER_OPCODE_DISPATCH;
}
if (opline->op1_type == IS_VAR && object == NULL) {
return ZEND_USER_OPCODE_DISPATCH;
}
property = php_xmark_get_zval_ptr(execute_data, opline->op2_type, opline->op2, &free_op2, BP_VAR_R, 1);
do {
if (opline->op1_type == IS_UNUSED || Z_TYPE_P(object) != IS_OBJECT) {
if (!php_xmark_make_real_object(object)) {
zend_error(E_WARNING, "Attempt to assign property of non-object");
if (XMARK_RET_USED(opline)) {
ZVAL_NULL(EX_VAR(opline->result.var));
}
break;
}
}
value = php_xmark_get_zval_ptr(execute_data, (opline + 1)->op1_type, (opline + 1)->op1, &free_op_data, BP_VAR_R, 1);
if (Z_OBJ_HT_P(object)->get_property_ptr_ptr
&& (var_ptr = Z_OBJ_HT_P(object)->get_property_ptr_ptr(object, property, BP_VAR_RW, NULL)) != NULL) {
ZVAL_DEREF(var_ptr);
SEPARATE_ZVAL_NOREF(var_ptr);
z_fname = zend_hash_index_find(&XMARK_G(callbacks), XMARK_ASSIGN_CONCAT);
if (z_fname) {
ZVAL_COPY_VALUE(&call_func_params[0], var_ptr);
ZVAL_COPY_VALUE(&call_func_params[1], value);
if (SUCCESS != call_user_function(EG(function_table), NULL, z_fname, &call_func_ret, 2, call_func_params)) {
zend_error(E_WARNING, "call function error");
}
zval_ptr_dtor_nogc(var_ptr);
ZVAL_COPY_VALUE(var_ptr, &call_func_ret);
} else {
binary_op(var_ptr, var_ptr, value);
}
if (XMARK_RET_USED(opline)) {
ZVAL_COPY(EX_VAR(opline->result.var), var_ptr);
}
} else {
php_xmark_assign_op_overloaded_property(object, property, NULL, value, binary_op, EX_VAR(opline->result.var));
if (!XMARK_RET_USED(opline)) {
zval_ptr_dtor_nogc(EX_VAR(opline->result.var));
}
}
} while (0);
if ((opline->op2_type & (IS_VAR|IS_TMP_VAR)) && free_op2) {
zval_ptr_dtor_nogc(free_op2);
}
if (((opline + 1)->op1_type & (IS_VAR|IS_TMP_VAR)) && free_op_data) {
zval_ptr_dtor_nogc(free_op_data);
}
if ((opline->op1_type & (IS_VAR|IS_TMP_VAR)) && free_op1) {
zval_ptr_dtor_nogc(free_op1);
}
execute_data->opline += 2;
return ZEND_USER_OPCODE_CONTINUE;
}
/* }}} */
static int php_xmark_binary_assign_op_dim_helper(binary_op_type binary_op, zend_execute_data *execute_data) /* {{{ */ {
const zend_op *opline = execute_data->opline;
zval *container, *dim, *var_ptr, *value, rv;
zend_free_op free_op1, free_op2, free_op_data;
zval *z_fname;
zval call_func_ret, call_func_params[2];
container = php_xmark_get_zval_ptr_ptr(execute_data, opline->op1_type, opline->op1, &free_op1, BP_VAR_RW);
if (opline->op1_type == IS_UNUSED && Z_OBJ_P(container) == NULL) {
return ZEND_USER_OPCODE_DISPATCH;
}
if (opline->op1_type == IS_VAR && container == NULL) {
return ZEND_USER_OPCODE_DISPATCH;
}
dim = php_xmark_get_zval_ptr(execute_data, opline->op2_type, opline->op2, &free_op2, BP_VAR_R, 1);
do {
if (opline->op1_type == IS_UNUSED || Z_TYPE_P(container) == IS_OBJECT) {
value = php_xmark_get_zval_ptr(execute_data, (opline + 1)->op1_type, (opline + 1)->op1, &free_op_data, BP_VAR_R, 1);
php_xmark_binary_assign_op_obj_dim(container, dim, value, EX_VAR(opline->result.var), binary_op);
if (!XMARK_RET_USED(opline)) {
zval_ptr_dtor_nogc(EX_VAR(opline->result.var));
}
break;
}
php_xmark_fetch_dimension_address(&rv, container, dim, opline->op2_type, BP_VAR_RW);
value = php_xmark_get_zval_ptr(execute_data, (opline + 1)->op1_type, (opline + 1)->op1, &free_op_data, BP_VAR_R, 1);
if (Z_TYPE(rv) != IS_INDIRECT) {
var_ptr = NULL;
} else {
var_ptr = Z_INDIRECT(rv);
}
if (var_ptr == NULL) {
zend_throw_error(NULL, "Cannot use assign-op operators with overloaded objects nor string offsets");
if ((opline->op2_type & (IS_VAR|IS_TMP_VAR)) && free_op2) {
zval_ptr_dtor_nogc(free_op2);
}
if (((opline + 1)->op1_type & (IS_VAR|IS_TMP_VAR)) && free_op_data) {
zval_ptr_dtor_nogc(free_op_data);
}
if ((opline->op1_type & (IS_VAR|IS_TMP_VAR)) && free_op1) {
zval_ptr_dtor_nogc(free_op1);
}
execute_data->opline += 2;
return ZEND_USER_OPCODE_CONTINUE;
}
if (XMARK_ISERR(var_ptr)) {
if (XMARK_RET_USED(opline)) {
ZVAL_NULL(EX_VAR(opline->result.var));
}
} else {
ZVAL_DEREF(var_ptr);
SEPARATE_ZVAL_NOREF(var_ptr);
z_fname = zend_hash_index_find(&XMARK_G(callbacks), XMARK_ASSIGN_CONCAT);
if (z_fname) {
ZVAL_COPY_VALUE(&call_func_params[0], var_ptr);
ZVAL_COPY_VALUE(&call_func_params[1], value);
if (SUCCESS != call_user_function(EG(function_table), NULL, z_fname, &call_func_ret, 2, call_func_params)) {
zend_error(E_WARNING, "call function error");
}
zval_ptr_dtor_nogc(var_ptr);
ZVAL_COPY_VALUE(var_ptr, &call_func_ret);
} else {
binary_op(var_ptr, var_ptr, value);
}
if (XMARK_RET_USED(opline)) {
ZVAL_COPY(EX_VAR(opline->result.var), var_ptr);
}
}
} while (0);
if ((opline->op2_type & (IS_VAR|IS_TMP_VAR)) && free_op2) {
zval_ptr_dtor_nogc(free_op2);
}
if (((opline + 1)->op1_type & (IS_VAR|IS_TMP_VAR)) && free_op_data) {
zval_ptr_dtor_nogc(free_op_data);
}
if ((opline->op1_type & (IS_VAR|IS_TMP_VAR)) && free_op1) {
zval_ptr_dtor_nogc(free_op1);
}
execute_data->opline += 2;
return ZEND_USER_OPCODE_CONTINUE;
}
/* }}} */
/* Copied codes end */
static int php_xmark_op1_handler(zend_execute_data *execute_data) {
const zend_op *opline = execute_data->opline;
zend_free_op free_op1;
zval *op1;
zval *z_fname;
zval call_func_ret;
if (XMARK_G(in_callback)) {
return ZEND_USER_OPCODE_DISPATCH;
}
z_fname = zend_hash_index_find(&XMARK_G(callbacks), opline->opcode);
if (!z_fname) {
return ZEND_USER_OPCODE_DISPATCH;
}
XMARK_G(in_callback) = 1;
op1 = php_xmark_get_zval_ptr(execute_data, opline->op1_type, opline->op1, &free_op1, BP_VAR_R, 0);
if (op1) {
if (SUCCESS != call_user_function(EG(function_table), NULL, z_fname, &call_func_ret, 1, op1)) {
zend_error(E_WARNING, "call function error");
}
zval_ptr_dtor_nogc(&call_func_ret);
}
XMARK_G(in_callback) = 0;
return ZEND_USER_OPCODE_DISPATCH;
}
static int php_xmark_op2_handler(zend_execute_data *execute_data) {
const zend_op *opline = execute_data->opline;
zend_free_op free_op2;
zval *op2;
zval *z_fname;
zval call_func_ret;
if (XMARK_G(in_callback)) {
return ZEND_USER_OPCODE_DISPATCH;
}
z_fname = zend_hash_index_find(&XMARK_G(callbacks), opline->opcode);
if (!z_fname) {
return ZEND_USER_OPCODE_DISPATCH;
}
XMARK_G(in_callback) = 1;
op2 = php_xmark_get_zval_ptr(execute_data, opline->op2_type, opline->op2, &free_op2, BP_VAR_R, 0);
if (op2) {
if (SUCCESS != call_user_function(EG(function_table), NULL, z_fname, &call_func_ret, 1, op2)) {
zend_error(E_WARNING, "call function error");
}
zval_ptr_dtor_nogc(&call_func_ret);
}
XMARK_G(in_callback) = 0;
return ZEND_USER_OPCODE_DISPATCH;
}
static int php_xmark_concat_handler(zend_execute_data *execute_data) {
const zend_op *opline = execute_data->opline;
zval *op1, *op2, *result;
zend_free_op free_op1, free_op2;
zval *z_fname;
zval call_func_ret, call_func_params[2];
if (XMARK_G(in_callback)) {
return ZEND_USER_OPCODE_DISPATCH;
}
z_fname = zend_hash_index_find(&XMARK_G(callbacks), opline->opcode);
if (!z_fname) {
return ZEND_USER_OPCODE_DISPATCH;
}
XMARK_G(in_callback) = 1;
op1 = php_xmark_get_zval_ptr(execute_data, opline->op1_type, opline->op1, &free_op1, BP_VAR_R, 1);
op2 = php_xmark_get_zval_ptr(execute_data, opline->op2_type, opline->op2, &free_op2, BP_VAR_R, 1);
result = EX_VAR(opline->result.var);
if (op1 && op2) {
ZVAL_COPY_VALUE(&call_func_params[0], op1);
ZVAL_COPY_VALUE(&call_func_params[1], op2);
if (SUCCESS != call_user_function(EG(function_table), NULL, z_fname, &call_func_ret, 2, call_func_params)) {
zend_error(E_WARNING, "call function error");
}
ZVAL_COPY_VALUE(result, &call_func_ret);
}
if ((XMARK_OP1_TYPE(opline) & (IS_VAR|IS_TMP_VAR)) && free_op1) {
zval_ptr_dtor_nogc(free_op1);
}
if ((XMARK_OP2_TYPE(opline) & (IS_VAR|IS_TMP_VAR)) && free_op2) {
zval_ptr_dtor_nogc(free_op2);
}
execute_data->opline++;
XMARK_G(in_callback) = 0;
return ZEND_USER_OPCODE_CONTINUE;
}
static int php_xmark_assign_concat_handler(zend_execute_data *execute_data) /* {{{ */ {
const zend_op *opline = execute_data->opline;
int result = 0;
if (XMARK_G(in_callback)) {
return ZEND_USER_OPCODE_DISPATCH;
}
XMARK_G(in_callback) = 1;
if (EXPECTED(opline->extended_value == 0)) {
result = php_xmark_binary_assign_op_helper(concat_function, execute_data);
} else if (EXPECTED(opline->extended_value == ZEND_ASSIGN_DIM)) {
result = php_xmark_binary_assign_op_dim_helper(concat_function, execute_data);
} else {
result = php_xmark_binary_assign_op_obj_helper(concat_function, execute_data);
}
XMARK_G(in_callback) = 0;
return result;
} /* }}} */
/* 适配php7.4 */
#if PHP_VERSION_ID >= 70400
static int php_xmark_assign_op_handler(zend_execute_data *execute_data) /* {{{ */ {
const zend_op *opline = execute_data->opline;
int result = 0;
if (XMARK_G(in_callback)) {
return ZEND_USER_OPCODE_DISPATCH;
}
XMARK_G(in_callback) = 1;
if (UNEXPECTED(opline->extended_value == ZEND_CONCAT)) {
result = php_xmark_binary_assign_op_helper(concat_function, execute_data);
}
XMARK_G(in_callback) = 0;
return result;
} /* }}} */
static int php_xmark_assign_dim_op_handler(zend_execute_data *execute_data) /* {{{ */ {
const zend_op *opline = execute_data->opline;
int result = 0;
if (XMARK_G(in_callback)) {
return ZEND_USER_OPCODE_DISPATCH;
}
XMARK_G(in_callback) = 1;
if (UNEXPECTED(opline->extended_value == ZEND_CONCAT)) {
result = php_xmark_binary_assign_op_dim_helper(concat_function, execute_data);
}
XMARK_G(in_callback) = 0;
return result;
} /* }}} */
static int php_xmark_assign_obj_op_handler(zend_execute_data *execute_data) /* {{{ */ {
const zend_op *opline = execute_data->opline;
int result = 0;
if (XMARK_G(in_callback)) {
return ZEND_USER_OPCODE_DISPATCH;
}
XMARK_G(in_callback) = 1;
if (UNEXPECTED(opline->extended_value == ZEND_CONCAT)) {
result = php_xmark_binary_assign_op_obj_helper(concat_function, execute_data);
}
XMARK_G(in_callback) = 0;
return result;
} /* }}} */
#endif
static int php_xmark_rope_end_handler(zend_execute_data *execute_data) {
const zend_op *opline = execute_data->opline;
zval *op2, *result;
zend_free_op free_op2;
zend_string **rope;
int i;
zval *z_fname;
zval call_func_ret, call_func_params[1];
zval z_rope;
if (XMARK_G(in_callback)) {
return ZEND_USER_OPCODE_DISPATCH;
}
z_fname = zend_hash_index_find(&XMARK_G(callbacks), opline->opcode);
if (!z_fname) {
return ZEND_USER_OPCODE_DISPATCH;
}
XMARK_G(in_callback) = 1;
rope = (zend_string **)EX_VAR(opline->op1.var);
op2 = php_xmark_get_zval_ptr(execute_data, opline->op2_type, opline->op2, &free_op2, BP_VAR_R, 1);
result = EX_VAR(opline->result.var);
ZVAL_NEW_ARR(&z_rope);
zend_hash_init(Z_ARRVAL(z_rope), opline->extended_value+1, NULL, ZVAL_PTR_DTOR, 0);
rope[opline->extended_value] = zval_get_string(op2);
zval tmp;
for (i=0; i<=opline->extended_value; i++) {
ZVAL_STR(&tmp, rope[i]);
zend_hash_next_index_insert(Z_ARRVAL(z_rope), &tmp);
}
ZVAL_COPY_VALUE(&call_func_params[0], &z_rope);
if (SUCCESS != call_user_function(EG(function_table), NULL, z_fname, &call_func_ret, 1, call_func_params)) {
zend_error(E_WARNING, "call function error");
}
if (Z_REFCOUNT(z_rope) <= 1)
zend_array_destroy(Z_ARRVAL(z_rope));
else
Z_DELREF(z_rope);
ZVAL_COPY_VALUE(result, &call_func_ret);