/* +----------------------------------------------------------------------+ | Zend Engine | +----------------------------------------------------------------------+ | Copyright (c) 1998-2002 Zend Technologies Ltd. (http://www.zend.com) | +----------------------------------------------------------------------+ | This source file is subject to version 2.00 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/2_00.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 | | Zeev Suraski | +----------------------------------------------------------------------+ */ #define ZEND_INTENSIVE_DEBUGGING 0 #include #include #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_fast_cache.h" #include "zend_execute_locks.h" #define get_zval_ptr(node, Ts, should_free, type) _get_zval_ptr(node, Ts, should_free TSRMLS_CC) #define get_zval_ptr_ptr(node, Ts, type) _get_zval_ptr_ptr(node, Ts TSRMLS_CC) #define get_incdec_op(op, opcode) \ switch (opcode) { \ case ZEND_PRE_INC: \ case ZEND_POST_INC: \ case ZEND_PRE_INC_OBJ: \ case ZEND_POST_INC_OBJ: \ (op) = increment_function; \ break; \ case ZEND_PRE_DEC: \ case ZEND_POST_DEC: \ case ZEND_PRE_DEC_OBJ: \ case ZEND_POST_DEC_OBJ: \ (op) = decrement_function; \ break; \ default: \ (op) = NULL; \ break; \ } \ /* These globals don't have to be thread safe since they're never modified */ /* Prototypes */ static void zend_fetch_var_address(zend_op *opline, temp_variable *Ts, int type TSRMLS_DC); static void zend_fetch_dimension_address(znode *result, znode *op1, znode *op2, temp_variable *Ts, int type TSRMLS_DC); static void zend_fetch_property_address(znode *result, znode *op1, znode *op2, temp_variable *Ts, int type TSRMLS_DC); static void zend_fetch_dimension_address_from_tmp_var(znode *result, znode *op1, znode *op2, temp_variable *Ts TSRMLS_DC); static void zend_extension_statement_handler(zend_extension *extension, zend_op_array *op_array TSRMLS_DC); static void zend_extension_fcall_begin_handler(zend_extension *extension, zend_op_array *op_array TSRMLS_DC); static void zend_extension_fcall_end_handler(zend_extension *extension, zend_op_array *op_array TSRMLS_DC); #define RETURN_VALUE_USED(opline) (!((opline)->result.u.EA.type & EXT_TYPE_UNUSED)) static inline zval *_get_zval_ptr(znode *node, temp_variable *Ts, int *should_free TSRMLS_DC) { switch(node->op_type) { case IS_CONST: *should_free = 0; return &node->u.constant; break; case IS_TMP_VAR: *should_free = 1; return &Ts[node->u.var].tmp_var; break; case IS_VAR: if (Ts[node->u.var].var.ptr) { PZVAL_UNLOCK(Ts[node->u.var].var.ptr); *should_free = 0; return Ts[node->u.var].var.ptr; } else { *should_free = 1; switch (Ts[node->u.var].EA.type) { case IS_STRING_OFFSET: { temp_variable *T = &Ts[node->u.var]; zval *str = T->EA.data.str_offset.str; if (T->EA.data.str_offset.str->type != IS_STRING || (T->EA.data.str_offset.offset<0) || (T->EA.data.str_offset.str->value.str.len <= T->EA.data.str_offset.offset)) { zend_error(E_NOTICE, "Uninitialized string offset: %d", T->EA.data.str_offset.offset); T->tmp_var.value.str.val = empty_string; T->tmp_var.value.str.len = 0; } else { char c = str->value.str.val[T->EA.data.str_offset.offset]; T->tmp_var.value.str.val = estrndup(&c, 1); T->tmp_var.value.str.len = 1; } PZVAL_UNLOCK(str); T->tmp_var.refcount=1; T->tmp_var.is_ref=1; T->tmp_var.type = IS_STRING; return &T->tmp_var; } break; } } break; case IS_UNUSED: *should_free = 0; return NULL; break; EMPTY_SWITCH_DEFAULT_CASE() } return NULL; } static inline zval **_get_zval_ptr_ptr(znode *node, temp_variable *Ts TSRMLS_DC) { if (node->op_type==IS_VAR) { if (Ts[node->u.var].var.ptr_ptr) { PZVAL_UNLOCK(*Ts[node->u.var].var.ptr_ptr); } else if (Ts[node->u.var].EA.type==IS_STRING_OFFSET) { PZVAL_UNLOCK(Ts[node->u.var].EA.data.str_offset.str); } return Ts[node->u.var].var.ptr_ptr; } else { return NULL; } } static inline zval **zend_fetch_property_address_inner(zval *object, znode *op2, temp_variable *Ts, int type TSRMLS_DC) { zval *prop_ptr = get_zval_ptr(op2, Ts, &EG(free_op2), BP_VAR_R); zval **retval = NULL; zval tmp; switch (op2->op_type) { case IS_CONST: /* already a constant string */ break; case IS_VAR: tmp = *prop_ptr; zval_copy_ctor(&tmp); convert_to_string(&tmp); prop_ptr = &tmp; break; case IS_TMP_VAR: convert_to_string(prop_ptr); break; } if (Z_OBJ_HT_P(object)->get_property_ptr != NULL) { retval = Z_OBJ_HT_P(object)->get_property_ptr(object, prop_ptr TSRMLS_CC); } if (retval == NULL) { zend_error(E_WARNING, "This object doesn't support property references"); retval = &EG(error_zval_ptr); } if (prop_ptr == &tmp) { zval_dtor(prop_ptr); } FREE_OP(Ts, op2, EG(free_op2)); return retval; } static inline void zend_switch_free(zend_op *opline, temp_variable *Ts TSRMLS_DC) { switch (opline->op1.op_type) { case IS_VAR: if (!Ts[opline->op1.u.var].var.ptr_ptr) { get_zval_ptr(&opline->op1, Ts, &EG(free_op1), BP_VAR_R); FREE_OP(Ts, &opline->op1, EG(free_op1)); } else { zval_ptr_dtor(&Ts[opline->op1.u.var].var.ptr); if (opline->extended_value) { /* foreach() free */ zval_ptr_dtor(&Ts[opline->op1.u.var].var.ptr); } } break; case IS_TMP_VAR: zendi_zval_dtor(Ts[opline->op1.u.var].tmp_var); break; EMPTY_SWITCH_DEFAULT_CASE() } } void zend_assign_to_variable_reference(znode *result, zval **variable_ptr_ptr, zval **value_ptr_ptr, temp_variable *Ts TSRMLS_DC) { zval *variable_ptr; zval *value_ptr; if (!value_ptr_ptr || !variable_ptr_ptr) { zend_error(E_ERROR, "Cannot create references to/from string offsets nor overloaded objects"); return; } variable_ptr = *variable_ptr_ptr; value_ptr = *value_ptr_ptr; if (variable_ptr == EG(error_zval_ptr) || value_ptr==EG(error_zval_ptr)) { variable_ptr_ptr = &EG(uninitialized_zval_ptr); /* } else if (variable_ptr==&EG(uninitialized_zval) || variable_ptr!=value_ptr) { */ } else if (variable_ptr_ptr != value_ptr_ptr) { variable_ptr->refcount--; if (variable_ptr->refcount==0) { zendi_zval_dtor(*variable_ptr); FREE_ZVAL(variable_ptr); } if (!PZVAL_IS_REF(value_ptr)) { /* break it away */ value_ptr->refcount--; if (value_ptr->refcount>0) { ALLOC_ZVAL(*value_ptr_ptr); **value_ptr_ptr = *value_ptr; value_ptr = *value_ptr_ptr; zendi_zval_copy_ctor(*value_ptr); } value_ptr->refcount = 1; value_ptr->is_ref = 1; } *variable_ptr_ptr = value_ptr; value_ptr->refcount++; } else { if (variable_ptr->refcount>1) { /* we need to break away */ SEPARATE_ZVAL(variable_ptr_ptr); } (*variable_ptr_ptr)->is_ref = 1; } if (result && !(result->u.EA.type & EXT_TYPE_UNUSED)) { Ts[result->u.var].var.ptr_ptr = variable_ptr_ptr; SELECTIVE_PZVAL_LOCK(*variable_ptr_ptr, result); AI_USE_PTR(Ts[result->u.var].var); } } static inline void make_real_object(zval **object_ptr TSRMLS_DC) { if ((*object_ptr)->type == IS_NULL || ((*object_ptr)->type == IS_BOOL && (*object_ptr)->value.lval==0) || ((*object_ptr)->type == IS_STRING && (*object_ptr)->value.str.len == 0)) { if (!PZVAL_IS_REF(*object_ptr)) { SEPARATE_ZVAL(object_ptr); } zend_error(E_NOTICE, "Creating default object from empty value"); object_init(*object_ptr); } } static inline void zend_assign_to_object(znode *result, znode *op1, znode *op2, zval *value, temp_variable *Ts TSRMLS_DC) { zval **object_ptr = get_zval_ptr_ptr(op1, Ts, BP_VAR_W); zval *object; zval *property = get_zval_ptr(op2, Ts, &EG(free_op2), BP_VAR_R); zval tmp; zval **retval = &Ts[result->u.var].var.ptr; make_real_object(object_ptr TSRMLS_CC); object = *object_ptr; if (object->type != IS_OBJECT) { zend_error(E_WARNING, "Attempt to assign property of non-object"); FREE_OP(Ts, op2, EG(free_op2)); *retval = EG(uninitialized_zval_ptr); SELECTIVE_PZVAL_LOCK(*retval, result); PZVAL_UNLOCK(value); return; } /* here we are sure we are dealing with an object */ switch (op2->op_type) { case IS_CONST: /* already a constant string */ break; case IS_VAR: tmp = *property; zval_copy_ctor(&tmp); convert_to_string(&tmp); property = &tmp; break; case IS_TMP_VAR: convert_to_string(property); break; } /* here property is a string */ PZVAL_UNLOCK(value); Z_OBJ_HT_P(object)->write_property(object, property, value TSRMLS_CC); if (property == &tmp) { zval_dtor(property); } FREE_OP(Ts, op2, EG(free_op2)); if (result) { Ts[result->u.var].var.ptr = value; Ts[result->u.var].var.ptr_ptr = NULL; /* see if we can nuke this */ SELECTIVE_PZVAL_LOCK(value, result); } } static inline void zend_assign_to_object_op(znode *result, znode *op1, znode *op2, zval *value, temp_variable *Ts, int (*binary_op)(zval *result, zval *op1, zval *op2 TSRMLS_DC) TSRMLS_DC) { zval **object_ptr = get_zval_ptr_ptr(op1, Ts, BP_VAR_W); zval *object; zval *property = get_zval_ptr(op2, Ts, &EG(free_op2), BP_VAR_R); zval tmp; zval **retval = &Ts[result->u.var].var.ptr; int have_get_ptr = 0; Ts[result->u.var].var.ptr_ptr = NULL; make_real_object(object_ptr TSRMLS_CC); object = *object_ptr; if (object->type != IS_OBJECT) { zend_error(E_WARNING, "Attempt to assign property of non-object"); FREE_OP(Ts, op2, EG(free_op2)); *retval = EG(uninitialized_zval_ptr); SELECTIVE_PZVAL_LOCK(*retval, result); return; } /* here we are sure we are dealing with an object */ switch (op2->op_type) { case IS_CONST: /* already a constant string */ break; case IS_VAR: tmp = *property; zval_copy_ctor(&tmp); convert_to_string(&tmp); property = &tmp; break; case IS_TMP_VAR: convert_to_string(property); break; } /* here property is a string */ PZVAL_UNLOCK(value); if (Z_OBJ_HT_P(object)->get_property_zval_ptr) { zval **zptr = Z_OBJ_HT_P(object)->get_property_zval_ptr(object, property TSRMLS_CC); if (zptr != NULL) { /* NULL means no success in getting PTR */ SEPARATE_ZVAL_IF_NOT_REF(zptr); have_get_ptr = 1; binary_op(*zptr, *zptr, value TSRMLS_CC); *retval = *zptr; SELECTIVE_PZVAL_LOCK(*retval, result); } } if (!have_get_ptr) { zval *z = Z_OBJ_HT_P(object)->read_property(object, property, BP_VAR_RW TSRMLS_CC); SEPARATE_ZVAL_IF_NOT_REF(&z); binary_op(z, z, value TSRMLS_CC); Z_OBJ_HT_P(object)->write_property(object, property, z TSRMLS_CC); *retval = z; SELECTIVE_PZVAL_LOCK(*retval, result); if (z->refcount <= 1) { zval_dtor(z); } } if (property == &tmp) { zval_dtor(property); } FREE_OP(Ts, op2, EG(free_op2)); } static inline void zend_assign_to_variable(znode *result, znode *op1, znode *op2, zval *value, int type, temp_variable *Ts TSRMLS_DC) { zval **variable_ptr_ptr = get_zval_ptr_ptr(op1, Ts, BP_VAR_W); zval *variable_ptr; if (!variable_ptr_ptr) { switch (Ts[op1->u.var].EA.type) { case IS_STRING_OFFSET: { temp_variable *T = &Ts[op1->u.var]; if (T->EA.data.str_offset.str->type == IS_STRING) do { zval tmp; zval *final_value = value; if ((T->EA.data.str_offset.offset < 0)) { zend_error(E_WARNING, "Illegal string offset: %d", T->EA.data.str_offset.offset); break; } if (T->EA.data.str_offset.offset >= T->EA.data.str_offset.str->value.str.len) { zend_uint i; if (T->EA.data.str_offset.str->value.str.len==0) { STR_FREE(T->EA.data.str_offset.str->value.str.val); T->EA.data.str_offset.str->value.str.val = (char *) emalloc(T->EA.data.str_offset.offset+1+1); } else { T->EA.data.str_offset.str->value.str.val = (char *) erealloc(T->EA.data.str_offset.str->value.str.val, T->EA.data.str_offset.offset+1+1); } for (i=T->EA.data.str_offset.str->value.str.len; iEA.data.str_offset.offset; i++) { T->EA.data.str_offset.str->value.str.val[i] = ' '; } T->EA.data.str_offset.str->value.str.val[T->EA.data.str_offset.offset+1] = 0; T->EA.data.str_offset.str->value.str.len = T->EA.data.str_offset.offset+1; } if (value->type!=IS_STRING) { tmp = *value; if (op2 && op2->op_type == IS_VAR) { zval_copy_ctor(&tmp); } convert_to_string(&tmp); final_value = &tmp; } T->EA.data.str_offset.str->value.str.val[T->EA.data.str_offset.offset] = final_value->value.str.val[0]; if (op2 && op2->op_type == IS_VAR && value==&Ts[op2->u.var].tmp_var) { STR_FREE(value->value.str.val); } if (final_value == &tmp) { zval_dtor(final_value); } /* * the value of an assignment to a string offset is undefined Ts[result->u.var].var = &T->EA.data.str_offset.str; */ } while (0); /* zval_ptr_dtor(&T->EA.data.str_offset.str); Nuke this line if it doesn't cause a leak */ T->tmp_var.type = IS_STRING; } break; EMPTY_SWITCH_DEFAULT_CASE() } Ts[result->u.var].var.ptr_ptr = &EG(uninitialized_zval_ptr); SELECTIVE_PZVAL_LOCK(*Ts[result->u.var].var.ptr_ptr, result); AI_USE_PTR(Ts[result->u.var].var); return; } variable_ptr = *variable_ptr_ptr; if (variable_ptr == EG(error_zval_ptr)) { if (result) { Ts[result->u.var].var.ptr_ptr = &EG(uninitialized_zval_ptr); SELECTIVE_PZVAL_LOCK(*Ts[result->u.var].var.ptr_ptr, result); AI_USE_PTR(Ts[result->u.var].var); } if (type==IS_TMP_VAR) { zval_dtor(value); } return; } if (PZVAL_IS_REF(variable_ptr)) { if (variable_ptr!=value) { zend_uint refcount = variable_ptr->refcount; zval garbage; if (type!=IS_TMP_VAR) { value->refcount++; } garbage = *variable_ptr; *variable_ptr = *value; variable_ptr->refcount = refcount; variable_ptr->is_ref = 1; if (type!=IS_TMP_VAR) { zendi_zval_copy_ctor(*variable_ptr); value->refcount--; } zendi_zval_dtor(garbage); } } else { variable_ptr->refcount--; if (variable_ptr->refcount==0) { switch (type) { case IS_VAR: /* break missing intentionally */ case IS_CONST: if (variable_ptr==value) { variable_ptr->refcount++; } else if (PZVAL_IS_REF(value)) { zval tmp; tmp = *value; zval_copy_ctor(&tmp); tmp.refcount=1; zendi_zval_dtor(*variable_ptr); *variable_ptr = tmp; } else { value->refcount++; zendi_zval_dtor(*variable_ptr); safe_free_zval_ptr(variable_ptr); *variable_ptr_ptr = value; } break; case IS_TMP_VAR: zendi_zval_dtor(*variable_ptr); value->refcount=1; *variable_ptr = *value; break; EMPTY_SWITCH_DEFAULT_CASE() } } else { /* we need to split */ switch (type) { case IS_VAR: /* break missing intentionally */ case IS_CONST: if (PZVAL_IS_REF(value) && value->refcount > 0) { ALLOC_ZVAL(variable_ptr); *variable_ptr_ptr = variable_ptr; *variable_ptr = *value; zval_copy_ctor(variable_ptr); variable_ptr->refcount=1; break; } *variable_ptr_ptr = value; value->refcount++; break; case IS_TMP_VAR: ALLOC_ZVAL(*variable_ptr_ptr); value->refcount=1; **variable_ptr_ptr = *value; break; EMPTY_SWITCH_DEFAULT_CASE() } } (*variable_ptr_ptr)->is_ref=0; } if (result) { Ts[result->u.var].var.ptr_ptr = variable_ptr_ptr; SELECTIVE_PZVAL_LOCK(*variable_ptr_ptr, result); AI_USE_PTR(Ts[result->u.var].var); } } /* Utility Functions for Extensions */ static void zend_extension_statement_handler(zend_extension *extension, zend_op_array *op_array TSRMLS_DC) { if (extension->statement_handler) { extension->statement_handler(op_array); } } static void zend_extension_fcall_begin_handler(zend_extension *extension, zend_op_array *op_array TSRMLS_DC) { if (extension->fcall_begin_handler) { extension->fcall_begin_handler(op_array); } } static void zend_extension_fcall_end_handler(zend_extension *extension, zend_op_array *op_array TSRMLS_DC) { if (extension->fcall_end_handler) { extension->fcall_end_handler(op_array); } } static void print_refcount(zval *p, char *str) { print_refcount(NULL, NULL); } static inline HashTable *zend_get_target_symbol_table(zend_op *opline, temp_variable *Ts, int type TSRMLS_DC) { switch (opline->op2.u.EA.type) { case ZEND_FETCH_LOCAL: return EG(active_symbol_table); break; case ZEND_FETCH_GLOBAL: /* Don't think this is actually needed. if (opline->op1.op_type == IS_VAR) { PZVAL_LOCK(varname); } + */ return &EG(symbol_table); break; case ZEND_FETCH_STATIC: if (!EG(active_op_array)->static_variables) { ALLOC_HASHTABLE(EG(active_op_array)->static_variables); zend_hash_init(EG(active_op_array)->static_variables, 2, NULL, ZVAL_PTR_DTOR, 0); } return EG(active_op_array)->static_variables; break; case ZEND_FETCH_STATIC_MEMBER: return Ts[opline->op2.u.var].EA.class_entry->static_members; break; case ZEND_FETCH_FROM_THIS: if (!EG(This)) { zend_error(E_ERROR, "Using $this when not in object context"); } /* HACK!! 'this' should be always zend_object */ return Z_OBJPROP_P(EG(This)); break; EMPTY_SWITCH_DEFAULT_CASE() } return NULL; } static void zend_fetch_var_address(zend_op *opline, temp_variable *Ts, int type TSRMLS_DC) { int free_op1; zval *varname = get_zval_ptr(&opline->op1, Ts, &free_op1, BP_VAR_R); zval **retval; zval tmp_varname; HashTable *target_symbol_table; target_symbol_table = zend_get_target_symbol_table(opline, Ts, type TSRMLS_CC); if (!target_symbol_table) { return; } if (varname->type != IS_STRING) { tmp_varname = *varname; zval_copy_ctor(&tmp_varname); convert_to_string(&tmp_varname); varname = &tmp_varname; } if (zend_hash_find(target_symbol_table, varname->value.str.val, varname->value.str.len+1, (void **) &retval) == FAILURE) { switch (type) { case BP_VAR_R: zend_error(E_NOTICE,"Undefined variable: %s", varname->value.str.val); /* break missing intentionally */ case BP_VAR_IS: retval = &EG(uninitialized_zval_ptr); break; case BP_VAR_RW: zend_error(E_NOTICE,"Undefined variable: %s", varname->value.str.val); /* break missing intentionally */ case BP_VAR_W: { zval *new_zval = &EG(uninitialized_zval); new_zval->refcount++; zend_hash_update(target_symbol_table, varname->value.str.val, varname->value.str.len+1, &new_zval, sizeof(zval *), (void **) &retval); } break; EMPTY_SWITCH_DEFAULT_CASE() } } if (opline->op2.u.EA.type == ZEND_FETCH_LOCAL) { FREE_OP(Ts, &opline->op1, free_op1); } else if (opline->op2.u.EA.type == ZEND_FETCH_STATIC || opline->op2.u.EA.type == ZEND_FETCH_STATIC_MEMBER) { zval_update_constant(retval, (void *) 1 TSRMLS_CC); } if (varname == &tmp_varname) { zval_dtor(varname); } Ts[opline->result.u.var].var.ptr_ptr = retval; SELECTIVE_PZVAL_LOCK(*retval, &opline->result); } static inline zval **zend_fetch_dimension_address_inner(HashTable *ht, znode *op2, temp_variable *Ts, int type TSRMLS_DC) { zval *dim = get_zval_ptr(op2, Ts, &EG(free_op2), BP_VAR_R); zval **retval; char *offset_key; int offset_key_length; switch (dim->type) { case IS_NULL: offset_key = ""; offset_key_length = 0; goto fetch_string_dim; case IS_STRING: offset_key = dim->value.str.val; offset_key_length = dim->value.str.len; fetch_string_dim: if (zend_hash_find(ht, offset_key, offset_key_length+1, (void **) &retval) == FAILURE) { switch (type) { case BP_VAR_R: zend_error(E_NOTICE,"Undefined index: %s", offset_key); /* break missing intentionally */ case BP_VAR_IS: retval = &EG(uninitialized_zval_ptr); break; case BP_VAR_RW: zend_error(E_NOTICE,"Undefined index: %s", offset_key); /* break missing intentionally */ case BP_VAR_W: { zval *new_zval = &EG(uninitialized_zval); new_zval->refcount++; zend_hash_update(ht, offset_key, offset_key_length+1, &new_zval, sizeof(zval *), (void **) &retval); } break; } } break; case IS_DOUBLE: case IS_RESOURCE: case IS_BOOL: case IS_LONG: { long index; if (dim->type == IS_DOUBLE) { index = (long)dim->value.dval; } else { index = dim->value.lval; } if (zend_hash_index_find(ht, index, (void **) &retval) == FAILURE) { switch (type) { case BP_VAR_R: zend_error(E_NOTICE,"Undefined offset: %d", index); /* break missing intentionally */ case BP_VAR_IS: retval = &EG(uninitialized_zval_ptr); break; case BP_VAR_RW: zend_error(E_NOTICE,"Undefined offset: %d", index); /* break missing intentionally */ case BP_VAR_W: { zval *new_zval = &EG(uninitialized_zval); new_zval->refcount++; zend_hash_index_update(ht, index, &new_zval, sizeof(zval *), (void **) &retval); } break; } } } break; default: zend_error(E_WARNING, "Illegal offset type"); if (type == BP_VAR_R || type == BP_VAR_IS) { retval = &EG(uninitialized_zval_ptr); } else { retval = &EG(error_zval_ptr); } break; } FREE_OP(Ts, op2, EG(free_op2)); return retval; } static void zend_fetch_dimension_address(znode *result, znode *op1, znode *op2, temp_variable *Ts, int type TSRMLS_DC) { zval **container_ptr = get_zval_ptr_ptr(op1, Ts, type); zval *container; zval ***retval = &Ts[result->u.var].var.ptr_ptr; container = *container_ptr; if (container == EG(error_zval_ptr)) { *retval = &EG(error_zval_ptr); SELECTIVE_PZVAL_LOCK(**retval, result); return; } if (container->type==IS_NULL || (container->type==IS_BOOL && container->value.lval==0) || (container->type==IS_STRING && container->value.str.len==0)) { switch (type) { case BP_VAR_RW: case BP_VAR_W: if (!PZVAL_IS_REF(container)) { SEPARATE_ZVAL(container_ptr); container = *container_ptr; } array_init(container); break; } } switch (container->type) { case IS_ARRAY: if ((type==BP_VAR_W || type==BP_VAR_RW) && container->refcount>1 && !PZVAL_IS_REF(container)) { SEPARATE_ZVAL(container_ptr); container = *container_ptr; } if (op2->op_type == IS_UNUSED) { zval *new_zval = &EG(uninitialized_zval); new_zval->refcount++; if (zend_hash_next_index_insert(container->value.ht, &new_zval, sizeof(zval *), (void **) retval) == FAILURE) { zend_error(E_WARNING, "Cannot add element to the array as the nexxt element is already occupied"); *retval = &EG(uninitialized_zval_ptr); new_zval->refcount--; } } else { *retval = zend_fetch_dimension_address_inner(container->value.ht, op2, Ts, type TSRMLS_CC); } SELECTIVE_PZVAL_LOCK(**retval, result); break; case IS_NULL: /* for read-mode only */ get_zval_ptr(op2, Ts, &EG(free_op2), BP_VAR_R); *retval = &EG(uninitialized_zval_ptr); SELECTIVE_PZVAL_LOCK(**retval, result); FREE_OP(Ts, op2, EG(free_op2)); if (type==BP_VAR_W || type==BP_VAR_RW) { zend_error(E_WARNING, "Cannot use a NULL value as an array"); } break; case IS_STRING: { zval *offset; zval tmp; if (op2->op_type==IS_UNUSED) { zend_error(E_ERROR, "[] operator not supported for strings"); } offset = get_zval_ptr(op2, Ts, &EG(free_op2), BP_VAR_R); if (offset->type != IS_LONG) { tmp = *offset; zval_copy_ctor(&tmp); convert_to_long(&tmp); offset = &tmp; } if (type!=BP_VAR_R && type!=BP_VAR_IS) { SEPARATE_ZVAL_IF_NOT_REF(container_ptr); } container = *container_ptr; Ts[result->u.var].EA.data.str_offset.str = container; PZVAL_LOCK(container); Ts[result->u.var].EA.data.str_offset.offset = offset->value.lval; Ts[result->u.var].EA.type = IS_STRING_OFFSET; FREE_OP(Ts, op2, EG(free_op2)); *retval = NULL; return; } break; default: { zval *offset; offset = get_zval_ptr(op2, Ts, &EG(free_op2), BP_VAR_R); if (type==BP_VAR_R || type==BP_VAR_IS) { *retval = &EG(uninitialized_zval_ptr); } else { *retval = &EG(error_zval_ptr); } FREE_OP(Ts, op2, EG(free_op2)); SELECTIVE_PZVAL_LOCK(**retval, result); if (type==BP_VAR_W || type==BP_VAR_RW) { zend_error(E_WARNING, "Cannot use a scalar value as an array"); } } break; } } static void zend_fetch_dimension_address_from_tmp_var(znode *result, znode *op1, znode *op2, temp_variable *Ts TSRMLS_DC) { int free_op1; zval *container = get_zval_ptr(op1, Ts, &free_op1, BP_VAR_R); if (container->type != IS_ARRAY) { Ts[result->u.var].var.ptr_ptr = &EG(uninitialized_zval_ptr); SELECTIVE_PZVAL_LOCK(*Ts[result->u.var].var.ptr_ptr, result); return; } Ts[result->u.var].var.ptr_ptr = zend_fetch_dimension_address_inner(container->value.ht, op2, Ts, BP_VAR_R TSRMLS_CC); SELECTIVE_PZVAL_LOCK(*Ts[result->u.var].var.ptr_ptr, result); } static void zend_fetch_property_address(znode *result, znode *op1, znode *op2, temp_variable *Ts, int type TSRMLS_DC) { zval **container_ptr = get_zval_ptr_ptr(op1, Ts, type); zval *container; zval ***retval = &Ts[result->u.var].var.ptr_ptr; container = *container_ptr; if (container == EG(error_zval_ptr)) { *retval = &EG(error_zval_ptr); SELECTIVE_PZVAL_LOCK(**retval, result); return; } if (container->type == IS_NULL || (container->type == IS_BOOL && container->value.lval==0) || (container->type == IS_STRING && container->value.str.len == 0)) { switch (type) { case BP_VAR_RW: case BP_VAR_W: if (!PZVAL_IS_REF(container)) { SEPARATE_ZVAL(container_ptr); container = *container_ptr; } object_init(container); break; } } if (container->type != IS_OBJECT) { zval *offset; offset = get_zval_ptr(op2, Ts, &EG(free_op2), BP_VAR_R); FREE_OP(Ts, op2, EG(free_op2)); if (type == BP_VAR_R || type == BP_VAR_IS) { *retval = &EG(uninitialized_zval_ptr); } else { *retval = &EG(error_zval_ptr); } SELECTIVE_PZVAL_LOCK(**retval, result); return; } if ((type==BP_VAR_W || type==BP_VAR_RW) && container->refcount>1 && !PZVAL_IS_REF(container)) { SEPARATE_ZVAL(container_ptr); container = *container_ptr; } *retval = zend_fetch_property_address_inner(container, op2, Ts, type TSRMLS_CC); SELECTIVE_PZVAL_LOCK(**retval, result); } static void zend_fetch_property_address_read(znode *result, znode *op1, znode *op2, temp_variable *Ts, int type TSRMLS_DC) { zval *container; zval **retval; retval = &Ts[result->u.var].var.ptr; Ts[result->u.var].var.ptr_ptr = retval; container = get_zval_ptr(op1, Ts, &EG(free_op1), type); if (container == EG(error_zval_ptr)) { *retval = EG(error_zval_ptr); SELECTIVE_PZVAL_LOCK(*retval, result); return; } if (container->type != IS_OBJECT) { zend_error(E_NOTICE, "Trying to get property of non-object"); if (type==BP_VAR_R || type==BP_VAR_IS) { *retval = EG(uninitialized_zval_ptr); } else { *retval = EG(error_zval_ptr); } } else { zval *offset; zval tmp; offset = get_zval_ptr(op2, Ts, &EG(free_op2), BP_VAR_R); switch (op2->op_type) { case IS_CONST: /* already a constant string */ break; case IS_VAR: tmp = *offset; zval_copy_ctor(&tmp); convert_to_string(&tmp); offset = &tmp; break; case IS_TMP_VAR: convert_to_string(offset); break; } /* here we are sure we are dealing with an object */ *retval = Z_OBJ_HT_P(container)->read_property(container, offset, type TSRMLS_CC); if (offset == &tmp) { zval_dtor(offset); } FREE_OP(Ts, op2, EG(free_op2)); } SELECTIVE_PZVAL_LOCK(*retval, result); return; } static void zend_pre_incdec_property(znode *result, znode *op1, znode *op2, temp_variable * Ts, int (*incdec_op)(zval *) TSRMLS_DC) { zval **object_ptr = get_zval_ptr_ptr(op1, Ts, BP_VAR_W); zval *object; zval *property = get_zval_ptr(op2, Ts, &EG(free_op2), BP_VAR_R); zval **retval = &Ts[result->u.var].var.ptr; int have_get_ptr = 0; make_real_object(object_ptr TSRMLS_CC); object = *object_ptr; if (object->type != IS_OBJECT) { zend_error(E_WARNING, "Attempt to increment/decrement property of non-object"); FREE_OP(Ts, op2, EG(free_op2)); *retval = EG(uninitialized_zval_ptr); SELECTIVE_PZVAL_LOCK(*retval, result); return; } /* here we are sure we are dealing with an object */ if (Z_OBJ_HT_P(object)->get_property_zval_ptr) { zval **zptr = Z_OBJ_HT_P(object)->get_property_zval_ptr(object, property TSRMLS_CC); if (zptr != NULL) { /* NULL means no success in getting PTR */ SEPARATE_ZVAL_IF_NOT_REF(zptr); have_get_ptr = 1; incdec_op(*zptr); *retval = *zptr; SELECTIVE_PZVAL_LOCK(*retval, result); } } if (!have_get_ptr) { zval *z = Z_OBJ_HT_P(object)->read_property(object, property, BP_VAR_RW TSRMLS_CC); SEPARATE_ZVAL_IF_NOT_REF(&z); incdec_op(z); Z_OBJ_HT_P(object)->write_property(object, property, z TSRMLS_CC); if (z->refcount <= 1) { zval_dtor(z); } } FREE_OP(Ts, op2, EG(free_op2)); } static void zend_post_incdec_property(znode *result, znode *op1, znode *op2, temp_variable * Ts, int (*incdec_op)(zval *) TSRMLS_DC) { zval **object_ptr = get_zval_ptr_ptr(op1, Ts, BP_VAR_W); zval *object; zval *property = get_zval_ptr(op2, Ts, &EG(free_op2), BP_VAR_R); zval *retval = &Ts[result->u.var].tmp_var; int have_get_ptr = 0; make_real_object(object_ptr TSRMLS_CC); object = *object_ptr; if (object->type != IS_OBJECT) { zend_error(E_WARNING, "Attempt to increment/decrement property of non-object"); FREE_OP(Ts, op2, EG(free_op2)); *retval = *EG(uninitialized_zval_ptr); return; } /* here we are sure we are dealing with an object */ if (Z_OBJ_HT_P(object)->get_property_zval_ptr) { zval **zptr = Z_OBJ_HT_P(object)->get_property_zval_ptr(object, property TSRMLS_CC); if (zptr != NULL) { /* NULL means no success in getting PTR */ have_get_ptr = 1; SEPARATE_ZVAL_IF_NOT_REF(zptr); *retval = **zptr; zendi_zval_copy_ctor(*retval); incdec_op(*zptr); } } if (!have_get_ptr) { zval *z = Z_OBJ_HT_P(object)->read_property(object, property, BP_VAR_RW TSRMLS_CC); SEPARATE_ZVAL_IF_NOT_REF(&z); *retval = *z; zendi_zval_copy_ctor(*retval); incdec_op(z); Z_OBJ_HT_P(object)->write_property(object, property, z TSRMLS_CC); if (z->refcount <= 1) { zval_dtor(z); } } FREE_OP(Ts, op2, EG(free_op2)); } #if ZEND_INTENSIVE_DEBUGGING #define CHECK_SYMBOL_TABLES() \ zend_hash_apply(&EG(symbol_table), (apply_func_t) zend_check_symbol TSRMLS_CC); \ if (&EG(symbol_table)!=EG(active_symbol_table)) { \ zend_hash_apply(EG(active_symbol_table), (apply_func_t) zend_check_symbol TSRMLS_CC); \ } static int zend_check_symbol(zval **pz TSRMLS_DC) { if (Z_TYPE_PP(pz) > 9) { fprintf(stderr, "Warning! %x has invalid type!\n", *pz); } else if (Z_TYPE_PP(pz) == IS_ARRAY) { zend_hash_apply(Z_ARRVAL_PP(pz), (apply_func_t) zend_check_symbol TSRMLS_CC); } else if (Z_TYPE_PP(pz) == IS_OBJECT) { /* OBJ-TBI - doesn't support new object model! */ zend_hash_apply(Z_OBJPROP_PP(pz), (apply_func_t) zend_check_symbol TSRMLS_CC); } return 0; } #else #define CHECK_SYMBOL_TABLES() #endif #define NEXT_OPCODE() \ CHECK_SYMBOL_TABLES() \ EX(opline)++; \ continue; #define RETURN_FROM_EXECUTE_LOOP(execute_data) \ free_alloca(EX(Ts)); \ EG(in_execution) = EX(original_in_execution); \ EG(current_execute_data) = EX(prev_execute_data); \ return; ZEND_API void execute(zend_op_array *op_array TSRMLS_DC) { zend_execute_data execute_data; /* Initialize execute_data */ EX(fbc) = NULL; EX(object) = NULL; EX(Ts) = (temp_variable *) do_alloca(sizeof(temp_variable)*op_array->T); EX(op_array) = op_array; EX(original_in_execution) = EG(in_execution); EX(prev_execute_data) = EG(current_execute_data); EG(current_execute_data) = &execute_data; EG(in_execution) = 1; if (op_array->start_op) { EX(opline) = op_array->start_op; } else { EX(opline) = op_array->opcodes; } if (op_array->uses_this && EG(This)) { EG(This)->refcount++; /* For $this pointer */ if (zend_hash_add(EG(active_symbol_table), "this", sizeof("this"), &EG(This), sizeof(zval *), NULL)==FAILURE) { EG(This)->refcount--; } } EG(opline_ptr) = &EX(opline); EX(function_state).function = (zend_function *) op_array; EG(function_state_ptr) = &EX(function_state); #if ZEND_DEBUG /* function_state.function_symbol_table is saved as-is to a stack, * which is an intentional UMR. Shut it up if we're in DEBUG. */ EX(function_state).function_symbol_table = NULL; #endif while (1) { #ifdef ZEND_WIN32 if (EG(timed_out)) { zend_timeout(0); } #endif zend_clean_garbage(TSRMLS_C); switch(EX(opline)->opcode) { case ZEND_ADD: EG(binary_op) = add_function; goto binary_op_addr; case ZEND_SUB: EG(binary_op) = sub_function; goto binary_op_addr; case ZEND_MUL: EG(binary_op) = mul_function; goto binary_op_addr; case ZEND_DIV: EG(binary_op) = div_function; goto binary_op_addr; case ZEND_MOD: EG(binary_op) = mod_function; goto binary_op_addr; case ZEND_SL: EG(binary_op) = shift_left_function; goto binary_op_addr; case ZEND_SR: EG(binary_op) = shift_right_function; goto binary_op_addr; case ZEND_CONCAT: EG(binary_op) = concat_function; goto binary_op_addr; case ZEND_IS_IDENTICAL: EG(binary_op) = is_identical_function; goto binary_op_addr; case ZEND_IS_NOT_IDENTICAL: EG(binary_op) = is_not_identical_function; goto binary_op_addr; case ZEND_IS_EQUAL: EG(binary_op) = is_equal_function; goto binary_op_addr; case ZEND_IS_NOT_EQUAL: EG(binary_op) = is_not_equal_function; goto binary_op_addr; case ZEND_IS_SMALLER: EG(binary_op) = is_smaller_function; goto binary_op_addr; case ZEND_IS_SMALLER_OR_EQUAL: EG(binary_op) = is_smaller_or_equal_function; goto binary_op_addr; case ZEND_BW_OR: EG(binary_op) = bitwise_or_function; goto binary_op_addr; case ZEND_BW_AND: EG(binary_op) = bitwise_and_function; goto binary_op_addr; case ZEND_BW_XOR: EG(binary_op) = bitwise_xor_function; goto binary_op_addr; case ZEND_BOOL_XOR: EG(binary_op) = boolean_xor_function; /* Fall through */ binary_op_addr: EG(binary_op)(&EX(Ts)[EX(opline)->result.u.var].tmp_var, get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R), get_zval_ptr(&EX(opline)->op2, EX(Ts), &EG(free_op2), BP_VAR_R) TSRMLS_CC); FREE_OP(EX(Ts), &EX(opline)->op1, EG(free_op1)); FREE_OP(EX(Ts), &EX(opline)->op2, EG(free_op2)); NEXT_OPCODE(); case ZEND_BW_NOT: case ZEND_BOOL_NOT: EG(unary_op) = get_unary_op(EX(opline)->opcode); EG(unary_op)(&EX(Ts)[EX(opline)->result.u.var].tmp_var, get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R) ); FREE_OP(EX(Ts), &EX(opline)->op1, EG(free_op1)); NEXT_OPCODE(); case ZEND_ASSIGN_ADD: EG(binary_op) = add_function; goto binary_assign_op_addr; case ZEND_ASSIGN_SUB: EG(binary_op) = sub_function; goto binary_assign_op_addr; case ZEND_ASSIGN_MUL: EG(binary_op) = mul_function; goto binary_assign_op_addr; case ZEND_ASSIGN_DIV: EG(binary_op) = div_function; goto binary_assign_op_addr; case ZEND_ASSIGN_MOD: EG(binary_op) = mod_function; goto binary_assign_op_addr; case ZEND_ASSIGN_SL: EG(binary_op) = shift_left_function; goto binary_assign_op_addr; case ZEND_ASSIGN_SR: EG(binary_op) = shift_right_function; goto binary_assign_op_addr; case ZEND_ASSIGN_CONCAT: EG(binary_op) = concat_function; goto binary_assign_op_addr; case ZEND_ASSIGN_BW_OR: EG(binary_op) = bitwise_or_function; goto binary_assign_op_addr; case ZEND_ASSIGN_BW_AND: EG(binary_op) = bitwise_and_function; goto binary_assign_op_addr; case ZEND_ASSIGN_BW_XOR: EG(binary_op) = bitwise_xor_function; /* Fall through */ binary_assign_op_addr: { zval **var_ptr = get_zval_ptr_ptr(&EX(opline)->op1, EX(Ts), BP_VAR_RW); if (!var_ptr) { zend_error(E_ERROR, "Cannot use assign-op operators with overloaded objects nor string offsets"); } if (*var_ptr == EG(error_zval_ptr)) { EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr = &EG(uninitialized_zval_ptr); SELECTIVE_PZVAL_LOCK(*EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr, &EX(opline)->result); AI_USE_PTR(EX(Ts)[EX(opline)->result.u.var].var); EX(opline)++; continue; } SEPARATE_ZVAL_IF_NOT_REF(var_ptr); EG(binary_op)(*var_ptr, *var_ptr, get_zval_ptr(&EX(opline)->op2, EX(Ts), &EG(free_op2), BP_VAR_R) TSRMLS_CC); EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr = var_ptr; SELECTIVE_PZVAL_LOCK(*var_ptr, &EX(opline)->result); FREE_OP(EX(Ts), &EX(opline)->op2, EG(free_op2)); AI_USE_PTR(EX(Ts)[EX(opline)->result.u.var].var); } NEXT_OPCODE(); case ZEND_ASSIGN_ADD_OBJ: EG(binary_op) = add_function; goto binary_assign_op_addr_obj; case ZEND_ASSIGN_SUB_OBJ: EG(binary_op) = sub_function; goto binary_assign_op_addr_obj; case ZEND_ASSIGN_MUL_OBJ: EG(binary_op) = mul_function; goto binary_assign_op_addr_obj; case ZEND_ASSIGN_DIV_OBJ: EG(binary_op) = div_function; goto binary_assign_op_addr_obj; case ZEND_ASSIGN_MOD_OBJ: EG(binary_op) = mod_function; goto binary_assign_op_addr_obj; case ZEND_ASSIGN_SL_OBJ: EG(binary_op) = shift_left_function; goto binary_assign_op_addr_obj; case ZEND_ASSIGN_SR_OBJ: EG(binary_op) = shift_right_function; goto binary_assign_op_addr_obj; case ZEND_ASSIGN_CONCAT_OBJ: EG(binary_op) = concat_function; goto binary_assign_op_addr_obj; case ZEND_ASSIGN_BW_OR_OBJ: EG(binary_op) = bitwise_or_function; goto binary_assign_op_addr_obj; case ZEND_ASSIGN_BW_AND_OBJ: EG(binary_op) = bitwise_and_function; goto binary_assign_op_addr_obj; case ZEND_ASSIGN_BW_XOR_OBJ: EG(binary_op) = bitwise_xor_function; /* Fall through */ binary_assign_op_addr_obj: zend_assign_to_object_op(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts)[EX(opline)->extended_value].var.ptr, EX(Ts), EG(binary_op) TSRMLS_CC); NEXT_OPCODE(); case ZEND_PRE_INC_OBJ: case ZEND_PRE_DEC_OBJ: { int (*incdec_op)(zval *op); get_incdec_op(incdec_op, EX(opline)->opcode); zend_pre_incdec_property(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts), incdec_op TSRMLS_CC); } NEXT_OPCODE(); case ZEND_POST_INC_OBJ: case ZEND_POST_DEC_OBJ: { int (*incdec_op)(zval *op); get_incdec_op(incdec_op, EX(opline)->opcode); zend_post_incdec_property(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts), incdec_op TSRMLS_CC); } NEXT_OPCODE(); case ZEND_PRE_INC: case ZEND_PRE_DEC: case ZEND_POST_INC: case ZEND_POST_DEC: { int (*incdec_op)(zval *op); zval **var_ptr = get_zval_ptr_ptr(&EX(opline)->op1, EX(Ts), BP_VAR_RW); if (!var_ptr) { zend_error(E_ERROR, "Cannot increment/decrement overloaded objects nor string offsets"); } if (*var_ptr == EG(error_zval_ptr)) { EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr = &EG(uninitialized_zval_ptr); SELECTIVE_PZVAL_LOCK(*EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr, &EX(opline)->result); AI_USE_PTR(EX(Ts)[EX(opline)->result.u.var].var); EX(opline)++; continue; } get_incdec_op(incdec_op, EX(opline)->opcode); switch (EX(opline)->opcode) { case ZEND_POST_INC: case ZEND_POST_DEC: EX(Ts)[EX(opline)->result.u.var].tmp_var = **var_ptr; zendi_zval_copy_ctor(EX(Ts)[EX(opline)->result.u.var].tmp_var); break; } SEPARATE_ZVAL_IF_NOT_REF(var_ptr); incdec_op(*var_ptr); switch (EX(opline)->opcode) { case ZEND_PRE_INC: case ZEND_PRE_DEC: EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr = var_ptr; SELECTIVE_PZVAL_LOCK(*var_ptr, &EX(opline)->result); AI_USE_PTR(EX(Ts)[EX(opline)->result.u.var].var); break; } } NEXT_OPCODE(); case ZEND_PRINT: zend_print_variable(get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R)); EX(Ts)[EX(opline)->result.u.var].tmp_var.value.lval = 1; EX(Ts)[EX(opline)->result.u.var].tmp_var.type = IS_LONG; FREE_OP(EX(Ts), &EX(opline)->op1, EG(free_op1)); NEXT_OPCODE(); case ZEND_ECHO: zend_print_variable(get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R)); FREE_OP(EX(Ts), &EX(opline)->op1, EG(free_op1)); NEXT_OPCODE(); case ZEND_FETCH_R: zend_fetch_var_address(EX(opline), EX(Ts), BP_VAR_R TSRMLS_CC); AI_USE_PTR(EX(Ts)[EX(opline)->result.u.var].var); NEXT_OPCODE(); case ZEND_FETCH_W: zend_fetch_var_address(EX(opline), EX(Ts), BP_VAR_W TSRMLS_CC); NEXT_OPCODE(); case ZEND_FETCH_RW: zend_fetch_var_address(EX(opline), EX(Ts), BP_VAR_RW TSRMLS_CC); NEXT_OPCODE(); case ZEND_FETCH_FUNC_ARG: if (ARG_SHOULD_BE_SENT_BY_REF(EX(opline)->extended_value, EX(fbc), EX(fbc)->common.arg_types)) { /* Behave like FETCH_W */ zend_fetch_var_address(EX(opline), EX(Ts), BP_VAR_W TSRMLS_CC); } else { /* Behave like FETCH_R */ zend_fetch_var_address(EX(opline), EX(Ts), BP_VAR_R TSRMLS_CC); AI_USE_PTR(EX(Ts)[EX(opline)->result.u.var].var); } NEXT_OPCODE(); case ZEND_FETCH_UNSET: zend_fetch_var_address(EX(opline), EX(Ts), BP_VAR_R TSRMLS_CC); PZVAL_UNLOCK(*EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr); if (EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr != &EG(uninitialized_zval_ptr)) { SEPARATE_ZVAL_IF_NOT_REF(EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr); } PZVAL_LOCK(*EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr); NEXT_OPCODE(); case ZEND_FETCH_IS: zend_fetch_var_address(EX(opline), EX(Ts), BP_VAR_IS TSRMLS_CC); AI_USE_PTR(EX(Ts)[EX(opline)->result.u.var].var); NEXT_OPCODE(); case ZEND_FETCH_DIM_R: if (EX(opline)->extended_value == ZEND_FETCH_ADD_LOCK) { PZVAL_LOCK(*EX(Ts)[EX(opline)->op1.u.var].var.ptr_ptr); } zend_fetch_dimension_address(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts), BP_VAR_R TSRMLS_CC); AI_USE_PTR(EX(Ts)[EX(opline)->result.u.var].var); NEXT_OPCODE(); case ZEND_FETCH_DIM_W: zend_fetch_dimension_address(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts), BP_VAR_W TSRMLS_CC); NEXT_OPCODE(); case ZEND_FETCH_DIM_RW: zend_fetch_dimension_address(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts), BP_VAR_RW TSRMLS_CC); NEXT_OPCODE(); case ZEND_FETCH_DIM_IS: zend_fetch_dimension_address(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts), BP_VAR_IS TSRMLS_CC); AI_USE_PTR(EX(Ts)[EX(opline)->result.u.var].var); NEXT_OPCODE(); case ZEND_FETCH_DIM_FUNC_ARG: if (ARG_SHOULD_BE_SENT_BY_REF(EX(opline)->extended_value, EX(fbc), EX(fbc)->common.arg_types)) { /* Behave like FETCH_DIM_W */ zend_fetch_dimension_address(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts), BP_VAR_W TSRMLS_CC); } else { /* Behave like FETCH_DIM_R, except for locking used for list() */ zend_fetch_dimension_address(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts), BP_VAR_R TSRMLS_CC); AI_USE_PTR(EX(Ts)[EX(opline)->result.u.var].var); } NEXT_OPCODE(); case ZEND_FETCH_DIM_UNSET: /* Not needed in DIM_UNSET if (EX(opline)->extended_value == ZEND_FETCH_ADD_LOCK) { PZVAL_LOCK(*EX(Ts)[EX(opline)->op1.u.var].var.ptr_ptr); } */ zend_fetch_dimension_address(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts), BP_VAR_R TSRMLS_CC); PZVAL_UNLOCK(*EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr); if (EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr != &EG(uninitialized_zval_ptr)) { SEPARATE_ZVAL_IF_NOT_REF(EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr); } PZVAL_LOCK(*EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr); NEXT_OPCODE(); case ZEND_FETCH_OBJ_R: zend_fetch_property_address_read(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts), BP_VAR_R TSRMLS_CC); AI_USE_PTR(EX(Ts)[EX(opline)->result.u.var].var); NEXT_OPCODE(); case ZEND_FETCH_OBJ_W: zend_fetch_property_address(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts), BP_VAR_W TSRMLS_CC); NEXT_OPCODE(); case ZEND_FETCH_OBJ_RW: zend_fetch_property_address(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts), BP_VAR_RW TSRMLS_CC); NEXT_OPCODE(); case ZEND_FETCH_OBJ_IS: zend_fetch_property_address_read(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts), BP_VAR_IS TSRMLS_CC); AI_USE_PTR(EX(Ts)[EX(opline)->result.u.var].var); NEXT_OPCODE(); case ZEND_FETCH_OBJ_FUNC_ARG: if (ARG_SHOULD_BE_SENT_BY_REF(EX(opline)->extended_value, EX(fbc), EX(fbc)->common.arg_types)) { /* Behave like FETCH_OBJ_W */ zend_fetch_property_address(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts), BP_VAR_W TSRMLS_CC); } else { zend_fetch_property_address_read(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts), BP_VAR_R TSRMLS_CC); AI_USE_PTR(EX(Ts)[EX(opline)->result.u.var].var); } NEXT_OPCODE(); case ZEND_FETCH_OBJ_UNSET: zend_fetch_property_address(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts), BP_VAR_R TSRMLS_CC); PZVAL_UNLOCK(*EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr); if (EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr != &EG(uninitialized_zval_ptr)) { SEPARATE_ZVAL_IF_NOT_REF(EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr); } PZVAL_LOCK(*EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr); NEXT_OPCODE(); case ZEND_FETCH_DIM_TMP_VAR: zend_fetch_dimension_address_from_tmp_var(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts) TSRMLS_CC); AI_USE_PTR(EX(Ts)[EX(opline)->result.u.var].var); NEXT_OPCODE(); case ZEND_MAKE_VAR: { zval *value, *value2; value = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); switch(EX(opline)->op1.op_type) { case IS_TMP_VAR: value2 = value; ALLOC_ZVAL(value); *value = *value2; value->is_ref = 0; value->refcount = 0; /* lock will increase this */ break; case IS_CONST: value2 = value; ALLOC_ZVAL(value); *value = *value2; zval_copy_ctor(value); value->is_ref = 0; value->refcount = 0; /* lock will increase this */ break; } EX(Ts)[EX(opline)->result.u.var].var.ptr = value; PZVAL_LOCK(EX(Ts)[EX(opline)->result.u.var].var.ptr); } NEXT_OPCODE(); case ZEND_ASSIGN_OBJ: zend_assign_to_object(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, EX(Ts)[EX(opline)->extended_value].var.ptr, EX(Ts) TSRMLS_CC); NEXT_OPCODE(); case ZEND_ASSIGN: { zval *value; value = get_zval_ptr(&EX(opline)->op2, EX(Ts), &EG(free_op2), BP_VAR_R); zend_assign_to_variable(&EX(opline)->result, &EX(opline)->op1, &EX(opline)->op2, value, (EG(free_op2)?IS_TMP_VAR:EX(opline)->op2.op_type), EX(Ts) TSRMLS_CC); /* zend_assign_to_variable() always takes care of op2, never free it! */ } NEXT_OPCODE(); case ZEND_ASSIGN_REF: { zval **value_ptr_ptr = get_zval_ptr_ptr(&EX(opline)->op2, EX(Ts), BP_VAR_W); zend_assign_to_variable_reference(&EX(opline)->result, get_zval_ptr_ptr(&EX(opline)->op1, EX(Ts), BP_VAR_W), value_ptr_ptr, EX(Ts) TSRMLS_CC); NEXT_OPCODE(); } case ZEND_JMP: #if DEBUG_ZEND>=2 printf("Jumping to %d\n", EX(opline)->op1.u.opline_num); #endif EX(opline) = &op_array->opcodes[EX(opline)->op1.u.opline_num]; continue; break; case ZEND_JMPZ: { znode *op1 = &EX(opline)->op1; if (!i_zend_is_true(get_zval_ptr(op1, EX(Ts), &EG(free_op1), BP_VAR_R))) { #if DEBUG_ZEND>=2 printf("Conditional jmp to %d\n", EX(opline)->op2.u.opline_num); #endif EX(opline) = &op_array->opcodes[EX(opline)->op2.u.opline_num]; FREE_OP(EX(Ts), op1, EG(free_op1)); continue; } FREE_OP(EX(Ts), op1, EG(free_op1)); } NEXT_OPCODE(); case ZEND_JMPNZ: { znode *op1 = &EX(opline)->op1; if (zend_is_true(get_zval_ptr(op1, EX(Ts), &EG(free_op1), BP_VAR_R))) { #if DEBUG_ZEND>=2 printf("Conditional jmp to %d\n", EX(opline)->op2.u.opline_num); #endif EX(opline) = &op_array->opcodes[EX(opline)->op2.u.opline_num]; FREE_OP(EX(Ts), op1, EG(free_op1)); continue; } FREE_OP(EX(Ts), op1, EG(free_op1)); } NEXT_OPCODE(); case ZEND_JMPZNZ: { znode *res = &EX(opline)->op1; if (zend_is_true(get_zval_ptr(res, EX(Ts), &EG(free_op1), BP_VAR_R))) { #if DEBUG_ZEND>=2 printf("Conditional jmp on true to %d\n", EX(opline)->extended_value); #endif EX(opline) = &op_array->opcodes[EX(opline)->extended_value]; } else { #if DEBUG_ZEND>=2 printf("Conditional jmp on false to %d\n", EX(opline)->op2.u.opline_num); #endif EX(opline) = &op_array->opcodes[EX(opline)->op2.u.opline_num]; } FREE_OP(EX(Ts), res, EG(free_op1)); } continue; break; case ZEND_JMPZ_EX: { zend_op *original_opline = EX(opline); int retval = zend_is_true(get_zval_ptr(&original_opline->op1, EX(Ts), &EG(free_op1), BP_VAR_R)); FREE_OP(EX(Ts), &original_opline->op1, EG(free_op1)); EX(Ts)[original_opline->result.u.var].tmp_var.value.lval = retval; EX(Ts)[original_opline->result.u.var].tmp_var.type = IS_BOOL; if (!retval) { #if DEBUG_ZEND>=2 printf("Conditional jmp to %d\n", EX(opline)->op2.u.opline_num); #endif EX(opline) = &op_array->opcodes[EX(opline)->op2.u.opline_num]; continue; } } NEXT_OPCODE(); case ZEND_JMPNZ_EX: { zend_op *original_opline = EX(opline); int retval = zend_is_true(get_zval_ptr(&original_opline->op1, EX(Ts), &EG(free_op1), BP_VAR_R)); FREE_OP(EX(Ts), &original_opline->op1, EG(free_op1)); EX(Ts)[original_opline->result.u.var].tmp_var.value.lval = retval; EX(Ts)[original_opline->result.u.var].tmp_var.type = IS_BOOL; if (retval) { #if DEBUG_ZEND>=2 printf("Conditional jmp to %d\n", EX(opline)->op2.u.opline_num); #endif EX(opline) = &op_array->opcodes[EX(opline)->op2.u.opline_num]; continue; } } NEXT_OPCODE(); case ZEND_FREE: zendi_zval_dtor(EX(Ts)[EX(opline)->op1.u.var].tmp_var); NEXT_OPCODE(); case ZEND_INIT_STRING: EX(Ts)[EX(opline)->result.u.var].tmp_var.value.str.val = emalloc(1); EX(Ts)[EX(opline)->result.u.var].tmp_var.value.str.val[0] = 0; EX(Ts)[EX(opline)->result.u.var].tmp_var.value.str.len = 0; EX(Ts)[EX(opline)->result.u.var].tmp_var.refcount = 1; EX(Ts)[EX(opline)->result.u.var].tmp_var.type = IS_STRING; EX(Ts)[EX(opline)->result.u.var].tmp_var.is_ref = 0; NEXT_OPCODE(); case ZEND_ADD_CHAR: add_char_to_string( &EX(Ts)[EX(opline)->result.u.var].tmp_var, get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_NA), &EX(opline)->op2.u.constant); /* FREE_OP is missing intentionally here - we're always working on the same temporary variable */ NEXT_OPCODE(); case ZEND_ADD_STRING: add_string_to_string( &EX(Ts)[EX(opline)->result.u.var].tmp_var, get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_NA), &EX(opline)->op2.u.constant); /* FREE_OP is missing intentionally here - we're always working on the same temporary variable */ NEXT_OPCODE(); case ZEND_ADD_VAR: { zval *var = get_zval_ptr(&EX(opline)->op2, EX(Ts), &EG(free_op2), BP_VAR_R); zval var_copy; int use_copy; zend_make_printable_zval(var, &var_copy, &use_copy); if (use_copy) { var = &var_copy; } add_string_to_string( &EX(Ts)[EX(opline)->result.u.var].tmp_var, get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_NA), var); if (use_copy) { zval_dtor(var); } /* original comment, possibly problematic: * FREE_OP is missing intentionally here - we're always working on the same temporary variable * (Zeev): I don't think it's problematic, we only use variables * which aren't affected by FREE_OP(Ts, )'s anyway, unless they're * string offsets or overloaded objects */ FREE_OP(EX(Ts), &EX(opline)->op2, EG(free_op2)); } NEXT_OPCODE(); case ZEND_IMPORT_FUNCTION: { zend_class_entry *ce; zend_function *function; ce = EX(Ts)[EX(opline)->op1.u.var].EA.class_entry; if (EX(opline)->op2.op_type != IS_UNUSED) { char *function_name_strval; int function_name_strlen; function_name_strval = EX(opline)->op2.u.constant.value.str.val; function_name_strlen = EX(opline)->op2.u.constant.value.str.len; if (zend_hash_find(&ce->function_table, function_name_strval, function_name_strlen + 1, (void **) &function)==FAILURE) { zend_error(E_ERROR, "Import: function %s() not found", function_name_strval); } if (zend_hash_add(EG(function_table), function_name_strval, function_name_strlen + 1, function, sizeof(zend_function), NULL) == FAILURE) { zend_error(E_ERROR, "Import: function %s() already exists in current scope", function_name_strval); } function_add_ref(function); } else { zend_function tmp_zend_function; zend_hash_copy(EG(function_table), &ce->function_table, (copy_ctor_func_t) function_add_ref, &tmp_zend_function, sizeof(zend_function)); } NEXT_OPCODE(); } case ZEND_IMPORT_CLASS: { zend_class_entry *ce; zend_class_entry **import_ce; ce = EX(Ts)[EX(opline)->op1.u.var].EA.class_entry; if (EX(opline)->op2.op_type != IS_UNUSED) { char *class_name_strval; int class_name_strlen; class_name_strval = EX(opline)->op2.u.constant.value.str.val; class_name_strlen = EX(opline)->op2.u.constant.value.str.len; if (zend_hash_find(&ce->class_table, class_name_strval, class_name_strlen + 1, (void **) &import_ce)==FAILURE) { zend_error(E_ERROR, "Import: class %s not found", class_name_strval); } if (zend_hash_add(EG(class_table), class_name_strval, class_name_strlen + 1, import_ce, sizeof(zend_class_entry *), NULL) == FAILURE) { zend_error(E_ERROR, "Import: class %s already exists in current scope", class_name_strval); } zend_class_add_ref(import_ce); } else { zend_class_entry *tmp_zend_class_entry; zend_hash_copy(EG(class_table), &ce->class_table, (copy_ctor_func_t) zend_class_add_ref, &tmp_zend_class_entry, sizeof(zend_class_entry *)); } NEXT_OPCODE(); } case ZEND_IMPORT_CONST: { zend_class_entry *ce; zval **import_constant; zend_constant c; ce = EX(Ts)[EX(opline)->op1.u.var].EA.class_entry; if (EX(opline)->op2.op_type != IS_UNUSED) { char *const_name_strval; int const_name_strlen; const_name_strval = EX(opline)->op2.u.constant.value.str.val; const_name_strlen = EX(opline)->op2.u.constant.value.str.len; if (zend_hash_find(&ce->constants_table, const_name_strval, const_name_strlen + 1, (void **) &import_constant)==FAILURE) { zend_error(E_ERROR, "Import: constant %s not found", const_name_strval); } c.value = **import_constant; zval_copy_ctor(&c.value); c.flags = CONST_CS; c.name = zend_strndup(const_name_strval, const_name_strlen); c.name_len = const_name_strlen + 1; if (zend_register_constant(&c TSRMLS_CC) == FAILURE) { zend_error(E_ERROR, "Import: unable to register constant %s", const_name_strval); } } else { HashPosition pos; char *key; uint key_length; int key_type; ulong dummy; zend_hash_internal_pointer_reset_ex(&ce->constants_table, &pos); while (zend_hash_get_current_data_ex(&ce->constants_table, (void **)&import_constant, &pos) == SUCCESS) { key_type = zend_hash_get_current_key_ex(&ce->constants_table, &key, &key_length, &dummy, 0, &pos); c.value = **import_constant; zval_copy_ctor(&c.value); c.flags = CONST_CS; c.name = zend_strndup(key, key_length - 1); c.name_len = key_length; if (zend_register_constant(&c TSRMLS_CC) == FAILURE) { zend_error(E_ERROR, "Import: unable to register constant %s", key); } zend_hash_move_forward_ex(&ce->constants_table, &pos); } } NEXT_OPCODE(); } case ZEND_FETCH_CLASS: { zend_class_entry **pce; if (EX(opline)->op1.op_type == IS_UNUSED) { zval tmp; zval *class_name; zend_bool is_const; char *class_name_strval; zend_uint class_name_strlen; if (EX(opline)->extended_value == ZEND_FETCH_CLASS_SELF) { if (!EG(scope)) { zend_error(E_ERROR, "Cannot fetch self:: when no class scope is active"); } EX(Ts)[EX(opline)->result.u.var].EA.class_entry = EG(scope); NEXT_OPCODE(); } else if (EX(opline)->extended_value == ZEND_FETCH_CLASS_MAIN) { EX(Ts)[EX(opline)->result.u.var].EA.class_entry = EG(main_class_ptr); NEXT_OPCODE(); } else if (EX(opline)->extended_value == ZEND_FETCH_CLASS_PARENT) { if (!EG(scope)) { zend_error(E_ERROR, "Cannot fetch parent:: when no class scope is active"); } if (!EG(scope)->parent) { zend_error(E_ERROR, "Cannot fetch parent:: as current class scope has no parent"); } EX(Ts)[EX(opline)->result.u.var].EA.class_entry = EG(scope)->parent; NEXT_OPCODE(); } is_const = (EX(opline)->op2.op_type == IS_CONST); if (is_const) { class_name_strval = EX(opline)->op2.u.constant.value.str.val; class_name_strlen = EX(opline)->op2.u.constant.value.str.len; } else { class_name = get_zval_ptr(&EX(opline)->op2, EX(Ts), &EG(free_op2), BP_VAR_R); tmp = *class_name; zval_copy_ctor(&tmp); convert_to_string(&tmp); zend_str_tolower_nlc(tmp.value.str.val, tmp.value.str.len); class_name_strval = tmp.value.str.val; class_name_strlen = tmp.value.str.len; } if (zend_lookup_class(class_name_strval, class_name_strlen, &pce TSRMLS_CC) == FAILURE) { zend_error(E_ERROR, "Class '%s' not found", class_name_strval); } else { EX(Ts)[EX(opline)->result.u.var].EA.class_entry = *pce; } if (!is_const) { zval_dtor(&tmp); FREE_OP(EX(Ts), &EX(opline)->op2, EG(free_op2)); } } else { if (zend_hash_find(&EX(Ts)[EX(opline)->op1.u.var].EA.class_entry->class_table, EX(opline)->op2.u.constant.value.str.val, EX(opline)->op2.u.constant.value.str.len+1, (void **)&pce) == FAILURE) { zend_error(E_ERROR, "Class '%s' not found", EX(opline)->op2.u.constant.value.str.val); } else { EX(Ts)[EX(opline)->result.u.var].EA.class_entry = *pce; } } NEXT_OPCODE(); } case ZEND_INIT_CTOR_CALL: { zend_ptr_stack_n_push(&EG(arg_types_stack), 3, EX(fbc), EX(object), EX(calling_scope)); if (EX(opline)->op1.op_type == IS_VAR) { SELECTIVE_PZVAL_LOCK(*EX(Ts)[EX(opline)->op1.u.var].var.ptr_ptr, &EX(opline)->op1); } /* We are not handling overloaded classes right now */ EX(object) = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); if (!PZVAL_IS_REF(EX(object))) { EX(object)->refcount++; /* For $this pointer */ } else { zval *this_ptr; ALLOC_ZVAL(this_ptr); *this_ptr = *EX(object); INIT_PZVAL(this_ptr); zval_copy_ctor(this_ptr); EX(object) = this_ptr; } EX(fbc) = EX(fbc_constructor); if (EX(fbc)->type == ZEND_USER_FUNCTION) { /* HACK!! */ /* The scope should be the scope of the class where the constructor was initially declared in */ EX(calling_scope) = EX(fbc)->common.scope; } else { EX(calling_scope) = NULL; } NEXT_OPCODE(); } case ZEND_INIT_METHOD_CALL: { zval *function_name; char *function_name_strval; int function_name_strlen; zend_ptr_stack_n_push(&EG(arg_types_stack), 3, EX(fbc), EX(object), EX(calling_scope)); function_name = get_zval_ptr(&EX(opline)->op2, EX(Ts), &EG(free_op2), BP_VAR_R); function_name_strval = function_name->value.str.val; function_name_strlen = function_name->value.str.len; EX(calling_scope) = EG(scope); if (EX(opline)->extended_value == ZEND_FETCH_FROM_THIS) { if (!EG(This)) { zend_error(E_ERROR, "Can't fetch $this as not in object context"); } EX(object) = EG(This); } else { EX(object) = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); } if (EX(object) && EX(object)->type == IS_OBJECT) { EX(fbc) = Z_OBJ_HT_P(EX(object))->get_method(EX(object), function_name_strval, function_name_strlen TSRMLS_CC); } else { zend_error(E_ERROR, "Call to a member function on a non-object"); } if (!EX(fbc)) { zend_error(E_ERROR, "Call to undefined function: %s()", function_name_strval); } if (!PZVAL_IS_REF(EX(object))) { EX(object)->refcount++; /* For $this pointer */ } else { zval *this_ptr; ALLOC_ZVAL(this_ptr); *this_ptr = *EX(object); INIT_PZVAL(this_ptr); zval_copy_ctor(this_ptr); EX(object) = this_ptr; } if (EX(fbc)->type == ZEND_USER_FUNCTION) { EX(calling_scope) = EX(fbc)->common.scope; } else { EX(calling_scope) = NULL; } FREE_OP(EX(Ts), &EX(opline)->op2, EG(free_op2)); NEXT_OPCODE(); } case ZEND_INIT_STATIC_METHOD_CALL: { zval *function_name; zend_function *function; zval tmp; zend_class_entry *ce; zend_bool is_const; char *function_name_strval; int function_name_strlen; zend_ptr_stack_n_push(&EG(arg_types_stack), 3, EX(fbc), EX(object), EX(calling_scope)); is_const = (EX(opline)->op2.op_type == IS_CONST); if (is_const) { function_name_strval = EX(opline)->op2.u.constant.value.str.val; function_name_strlen = EX(opline)->op2.u.constant.value.str.len; } else { function_name = get_zval_ptr(&EX(opline)->op2, EX(Ts), &EG(free_op2), BP_VAR_R); tmp = *function_name; zval_copy_ctor(&tmp); convert_to_string(&tmp); zend_str_tolower_nlc(tmp.value.str.val, tmp.value.str.len); function_name_strval = tmp.value.str.val; function_name_strlen = tmp.value.str.len; } if ((EX(object) = EG(This))) { EX(object)->refcount++; } ce = EX(Ts)[EX(opline)->op1.u.var].EA.class_entry; EX(calling_scope) = ce; if (zend_hash_find(&ce->function_table, function_name_strval, function_name_strlen+1, (void **) &function)==FAILURE) { zend_error(E_ERROR, "Call to undefined function: %s()", function_name_strval); } if (!is_const) { zval_dtor(&tmp); FREE_OP(EX(Ts), &EX(opline)->op2, EG(free_op2)); } EX(fbc) = function; NEXT_OPCODE(); } case ZEND_INIT_FCALL_BY_NAME: { zval *function_name; zend_function *function; zval tmp; zend_bool is_const; char *function_name_strval; int function_name_strlen; zend_ptr_stack_n_push(&EG(arg_types_stack), 3, EX(fbc), EX(object), EX(calling_scope)); is_const = (EX(opline)->op2.op_type == IS_CONST); if (is_const) { function_name_strval = EX(opline)->op2.u.constant.value.str.val; function_name_strlen = EX(opline)->op2.u.constant.value.str.len; } else { function_name = get_zval_ptr(&EX(opline)->op2, EX(Ts), &EG(free_op2), BP_VAR_R); tmp = *function_name; zval_copy_ctor(&tmp); convert_to_string(&tmp); zend_str_tolower_nlc(tmp.value.str.val, tmp.value.str.len); function_name_strval = tmp.value.str.val; function_name_strlen = tmp.value.str.len; } do { /* if (EG(scope)) { if (zend_hash_find(&EG(scope)->function_table, function_name_strval, function_name_strlen+1, (void **) &function) == SUCCESS) { if ((EX(object) = EG(This))) { EX(object)->refcount++; } EX(calling_scope) = EG(scope); break; } } */ if (zend_hash_find(EG(function_table), function_name_strval, function_name_strlen+1, (void **) &function)==FAILURE) { zend_error(E_ERROR, "Call to undefined function: %s()", function_name_strval); } EX(calling_scope) = function->common.scope; EX(object) = NULL; } while (0); if (!is_const) { zval_dtor(&tmp); FREE_OP(EX(Ts), &EX(opline)->op2, EG(free_op2)); } EX(fbc) = function; NEXT_OPCODE(); } case ZEND_DO_FCALL_BY_NAME: EX(function_state).function = EX(fbc); goto do_fcall_common; case ZEND_DO_FCALL: { zval *fname = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); zend_ptr_stack_n_push(&EG(arg_types_stack), 3, EX(fbc), EX(object), EX(calling_scope)); do { if (EG(scope)) { if (zend_hash_find(&EG(scope)->function_table, fname->value.str.val, fname->value.str.len+1, (void **) &EX(function_state).function) == SUCCESS) { if ((EX(object) = EG(This))) { EX(object)->refcount++; } EX(calling_scope) = EG(scope); break; } } if (zend_hash_find(EG(function_table), fname->value.str.val, fname->value.str.len+1, (void **) &EX(function_state).function)==FAILURE) { zend_error(E_ERROR, "Unknown function: %s()\n", fname->value.str.val); } EX(object) = NULL; EX(calling_scope) = EX(function_state).function->common.scope; } while (0); FREE_OP(EX(Ts), &EX(opline)->op1, EG(free_op1)); goto do_fcall_common; } do_fcall_common: { zval **original_return_value; zend_class_entry *current_scope; zval *current_this; int return_value_used = RETURN_VALUE_USED(EX(opline)); zend_ptr_stack_n_push(&EG(argument_stack), 2, (void *) EX(opline)->extended_value, NULL); current_scope = EG(scope); EG(scope) = EX(calling_scope); current_this = EG(This); EG(This) = EX(object); EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr = &EX(Ts)[EX(opline)->result.u.var].var.ptr; if (EX(function_state).function->type==ZEND_INTERNAL_FUNCTION) { ALLOC_ZVAL(EX(Ts)[EX(opline)->result.u.var].var.ptr); INIT_ZVAL(*(EX(Ts)[EX(opline)->result.u.var].var.ptr)); ((zend_internal_function *) EX(function_state).function)->handler(EX(opline)->extended_value, EX(Ts)[EX(opline)->result.u.var].var.ptr, EX(object), return_value_used TSRMLS_CC); EG(current_execute_data) = &execute_data; EX(Ts)[EX(opline)->result.u.var].var.ptr->is_ref = 0; EX(Ts)[EX(opline)->result.u.var].var.ptr->refcount = 1; if (!return_value_used) { zval_ptr_dtor(&EX(Ts)[EX(opline)->result.u.var].var.ptr); } } else if (EX(function_state).function->type==ZEND_USER_FUNCTION) { HashTable *calling_symbol_table; EX(Ts)[EX(opline)->result.u.var].var.ptr = NULL; if (EG(symtable_cache_ptr)>=EG(symtable_cache)) { /*printf("Cache hit! Reusing %x\n", symtable_cache[symtable_cache_ptr]);*/ EX(function_state).function_symbol_table = *(EG(symtable_cache_ptr)--); } else { ALLOC_HASHTABLE(EX(function_state).function_symbol_table); zend_hash_init(EX(function_state).function_symbol_table, 0, NULL, ZVAL_PTR_DTOR, 0); /*printf("Cache miss! Initialized %x\n", function_state.function_symbol_table);*/ } calling_symbol_table = EG(active_symbol_table); EG(active_symbol_table) = EX(function_state).function_symbol_table; original_return_value = EG(return_value_ptr_ptr); EG(return_value_ptr_ptr) = EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr; EG(active_op_array) = (zend_op_array *) EX(function_state).function; zend_execute(EG(active_op_array) TSRMLS_CC); if (return_value_used && !EX(Ts)[EX(opline)->result.u.var].var.ptr) { if (!EG(exception)) { ALLOC_ZVAL(EX(Ts)[EX(opline)->result.u.var].var.ptr); INIT_ZVAL(*EX(Ts)[EX(opline)->result.u.var].var.ptr); } } else if (!return_value_used && EX(Ts)[EX(opline)->result.u.var].var.ptr) { zval_ptr_dtor(&EX(Ts)[EX(opline)->result.u.var].var.ptr); } EG(opline_ptr) = &EX(opline); EG(active_op_array) = op_array; EG(return_value_ptr_ptr)=original_return_value; if (EG(symtable_cache_ptr)>=EG(symtable_cache_limit)) { zend_hash_destroy(EX(function_state).function_symbol_table); FREE_HASHTABLE(EX(function_state).function_symbol_table); } else { *(++EG(symtable_cache_ptr)) = EX(function_state).function_symbol_table; zend_hash_clean(*EG(symtable_cache_ptr)); } EG(active_symbol_table) = calling_symbol_table; } else { /* ZEND_OVERLOADED_FUNCTION */ ALLOC_ZVAL(EX(Ts)[EX(opline)->result.u.var].var.ptr); INIT_ZVAL(*(EX(Ts)[EX(opline)->result.u.var].var.ptr)); if (EX(object)) { Z_OBJ_HT_P(EX(object))->call_method(EX(fbc)->common.function_name, EX(opline)->extended_value, EX(Ts)[EX(opline)->result.u.var].var.ptr, EX(object), return_value_used TSRMLS_CC); } else { zend_error(E_ERROR, "Cannot call overloaded function for non-object"); } efree(EX(fbc)); if (!return_value_used) { zval_ptr_dtor(&EX(Ts)[EX(opline)->result.u.var].var.ptr); } } zend_ptr_stack_n_pop(&EG(arg_types_stack), 3, &EX(calling_scope), &EX(object), &EX(fbc)); EX(function_state).function = (zend_function *) op_array; EG(function_state_ptr) = &EX(function_state); zend_ptr_stack_clear_multiple(TSRMLS_C); EG(scope) = current_scope; if (EG(This)) { zval_ptr_dtor(&EG(This)); } EG(This) = current_this; if (EG(exception)) { if (EX(opline)->op2.u.opline_num == -1) { RETURN_FROM_EXECUTE_LOOP(execute_data); } else { EX(opline) = &op_array->opcodes[EX(opline)->op2.u.opline_num]; continue; } } } NEXT_OPCODE(); case ZEND_RETURN: { zval *retval_ptr; zval **retval_ptr_ptr; if ((EG(active_op_array)->return_reference == ZEND_RETURN_REF) && (EX(opline)->op1.op_type != IS_CONST) && (EX(opline)->op1.op_type != IS_TMP_VAR)) { retval_ptr_ptr = get_zval_ptr_ptr(&EX(opline)->op1, EX(Ts), BP_VAR_W); if (!retval_ptr_ptr) { zend_error(E_ERROR, "Cannot return overloaded elements or string offsets by reference"); } SEPARATE_ZVAL_TO_MAKE_IS_REF(retval_ptr_ptr); (*retval_ptr_ptr)->refcount++; (*EG(return_value_ptr_ptr)) = (*retval_ptr_ptr); } else { retval_ptr = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); if (!EG(free_op1)) { /* Not a temp var */ if (PZVAL_IS_REF(retval_ptr) && retval_ptr->refcount > 0) { ALLOC_ZVAL(*(EG(return_value_ptr_ptr))); **EG(return_value_ptr_ptr) = *retval_ptr; (*EG(return_value_ptr_ptr))->is_ref = 0; (*EG(return_value_ptr_ptr))->refcount = 1; zval_copy_ctor(*EG(return_value_ptr_ptr)); } else { *EG(return_value_ptr_ptr) = retval_ptr; retval_ptr->refcount++; } } else { ALLOC_ZVAL(*(EG(return_value_ptr_ptr))); **EG(return_value_ptr_ptr) = *retval_ptr; (*EG(return_value_ptr_ptr))->refcount = 1; (*EG(return_value_ptr_ptr))->is_ref = 0; } } RETURN_FROM_EXECUTE_LOOP(execute_data); } break; case ZEND_THROW: { zval *value; zval *exception; value = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); if (value->type != IS_OBJECT) { zend_error(E_ERROR, "Can only throw objects"); } /* Not sure if a complete copy is what we want here */ MAKE_STD_ZVAL(exception); *exception = *value; if (!EG(free_op1)) { zval_copy_ctor(exception); } INIT_PZVAL(exception); EG(exception) = exception; if (EX(opline)->op2.u.opline_num == -1) { RETURN_FROM_EXECUTE_LOOP(execute_data); } else { EX(opline) = &op_array->opcodes[EX(opline)->op2.u.opline_num]; continue; } } NEXT_OPCODE(); case ZEND_CATCH: { zend_class_entry *ce; /* Check if this is really an exception, if not, jump over code */ if (EG(exception) == NULL) { EX(opline) = &op_array->opcodes[EX(opline)->extended_value]; continue; } ce = Z_OBJCE_P(EG(exception)); if (ce != EX(Ts)[EX(opline)->op1.u.var].EA.class_entry) { while (ce->parent) { if (ce->parent == EX(Ts)[EX(opline)->op1.u.var].EA.class_entry) { goto exception_should_be_taken; } ce = ce->parent; } EX(opline) = &op_array->opcodes[EX(opline)->extended_value]; continue; } exception_should_be_taken: zend_hash_update(EG(active_symbol_table), EX(opline)->op2.u.constant.value.str.val, EX(opline)->op2.u.constant.value.str.len+1, &EG(exception), sizeof(zval *), (void **) NULL); EG(exception) = NULL; NEXT_OPCODE(); } case ZEND_SEND_VAL: if (EX(opline)->extended_value==ZEND_DO_FCALL_BY_NAME && ARG_SHOULD_BE_SENT_BY_REF(EX(opline)->op2.u.opline_num, EX(fbc), EX(fbc)->common.arg_types)) { zend_error(E_ERROR, "Cannot pass parameter %d by reference", EX(opline)->op2.u.opline_num); } { zval *valptr; zval *value; value = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); ALLOC_ZVAL(valptr); *valptr = *value; if (!EG(free_op1)) { zval_copy_ctor(valptr); } INIT_PZVAL(valptr); zend_ptr_stack_push(&EG(argument_stack), valptr); } NEXT_OPCODE(); case ZEND_SEND_VAR_NO_REF: if (EX(opline)->extended_value & ZEND_ARG_COMPILE_TIME_BOUND) { /* Had function_ptr at compile_time */ if (!(EX(opline)->extended_value & ZEND_ARG_SEND_BY_REF)) { goto send_by_var; } } else if (!ARG_SHOULD_BE_SENT_BY_REF(EX(opline)->op2.u.opline_num, EX(fbc), EX(fbc)->common.arg_types)) { goto send_by_var; } { zval *varptr; varptr = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); if (varptr != &EG(uninitialized_zval) && (PZVAL_IS_REF(varptr) || varptr->refcount == 1)) { varptr->is_ref = 1; varptr->refcount++; zend_ptr_stack_push(&EG(argument_stack), varptr); NEXT_OPCODE(); } zend_error(E_ERROR, "Only variables can be passed by reference"); } NEXT_OPCODE(); case ZEND_SEND_VAR: if ((EX(opline)->extended_value == ZEND_DO_FCALL_BY_NAME) && ARG_SHOULD_BE_SENT_BY_REF(EX(opline)->op2.u.opline_num, EX(fbc), EX(fbc)->common.arg_types)) { goto send_by_ref; } send_by_var: { zval *varptr; varptr = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); if (varptr == &EG(uninitialized_zval)) { ALLOC_ZVAL(varptr); INIT_ZVAL(*varptr); varptr->refcount = 0; } else if (PZVAL_IS_REF(varptr)) { zval *original_var = varptr; ALLOC_ZVAL(varptr); *varptr = *original_var; varptr->is_ref = 0; varptr->refcount = 0; zval_copy_ctor(varptr); } varptr->refcount++; zend_ptr_stack_push(&EG(argument_stack), varptr); FREE_OP(EX(Ts), &EX(opline)->op1, EG(free_op1)); /* for string offsets */ } NEXT_OPCODE(); send_by_ref: case ZEND_SEND_REF: { zval **varptr_ptr; zval *varptr; varptr_ptr = get_zval_ptr_ptr(&EX(opline)->op1, EX(Ts), BP_VAR_W); if (!varptr_ptr) { zend_error(E_ERROR, "Only variables can be passed by reference"); } SEPARATE_ZVAL_TO_MAKE_IS_REF(varptr_ptr); varptr = *varptr_ptr; varptr->refcount++; zend_ptr_stack_push(&EG(argument_stack), varptr); } NEXT_OPCODE(); case ZEND_RECV: { zval **param; if (zend_ptr_stack_get_arg(EX(opline)->op1.u.constant.value.lval, (void **) ¶m TSRMLS_CC)==FAILURE) { zend_error(E_WARNING, "Missing argument %d for %s()\n", EX(opline)->op1.u.constant.value.lval, get_active_function_name(TSRMLS_C)); if (EX(opline)->result.op_type == IS_VAR) { PZVAL_UNLOCK(*EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr); } } else if (PZVAL_IS_REF(*param)) { zend_assign_to_variable_reference(NULL, get_zval_ptr_ptr(&EX(opline)->result, EX(Ts), BP_VAR_W), param, NULL TSRMLS_CC); } else { zend_assign_to_variable(NULL, &EX(opline)->result, NULL, *param, IS_VAR, EX(Ts) TSRMLS_CC); } } NEXT_OPCODE(); case ZEND_RECV_INIT: { zval **param, *assignment_value; if (zend_ptr_stack_get_arg(EX(opline)->op1.u.constant.value.lval, (void **) ¶m TSRMLS_CC)==FAILURE) { if (EX(opline)->op2.u.constant.type == IS_CONSTANT || EX(opline)->op2.u.constant.type==IS_CONSTANT_ARRAY) { zval *default_value; ALLOC_ZVAL(default_value); *default_value = EX(opline)->op2.u.constant; if (EX(opline)->op2.u.constant.type==IS_CONSTANT_ARRAY) { zval_copy_ctor(default_value); } default_value->refcount=1; zval_update_constant(&default_value, 0 TSRMLS_CC); default_value->refcount=0; default_value->is_ref=0; param = &default_value; assignment_value = default_value; } else { param = NULL; assignment_value = &EX(opline)->op2.u.constant; } zend_assign_to_variable(NULL, &EX(opline)->result, NULL, assignment_value, IS_VAR, EX(Ts) TSRMLS_CC); } else { assignment_value = *param; if (PZVAL_IS_REF(assignment_value)) { zend_assign_to_variable_reference(NULL, get_zval_ptr_ptr(&EX(opline)->result, EX(Ts), BP_VAR_W), param, NULL TSRMLS_CC); } else { zend_assign_to_variable(NULL, &EX(opline)->result, NULL, assignment_value, IS_VAR, EX(Ts) TSRMLS_CC); } } } NEXT_OPCODE(); case ZEND_BOOL: /* PHP 3.0 returned "" for false and 1 for true, here we use 0 and 1 for now */ EX(Ts)[EX(opline)->result.u.var].tmp_var.value.lval = zend_is_true(get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R)); EX(Ts)[EX(opline)->result.u.var].tmp_var.type = IS_BOOL; FREE_OP(EX(Ts), &EX(opline)->op1, EG(free_op1)); NEXT_OPCODE(); case ZEND_BRK: case ZEND_CONT: { zval *nest_levels_zval = get_zval_ptr(&EX(opline)->op2, EX(Ts), &EG(free_op2), BP_VAR_R); zval tmp; int array_offset, nest_levels, original_nest_levels; zend_brk_cont_element *jmp_to; if (nest_levels_zval->type != IS_LONG) { tmp = *nest_levels_zval; zval_copy_ctor(&tmp); convert_to_long(&tmp); nest_levels = tmp.value.lval; } else { nest_levels = nest_levels_zval->value.lval; } original_nest_levels = nest_levels; array_offset = EX(opline)->op1.u.opline_num; do { if (array_offset==-1) { zend_error(E_ERROR, "Cannot break/continue %d level%s", original_nest_levels, (original_nest_levels == 1) ? "" : "s"); } jmp_to = &op_array->brk_cont_array[array_offset]; if (nest_levels>1) { zend_op *brk_opline = &op_array->opcodes[jmp_to->brk]; switch (brk_opline->opcode) { case ZEND_SWITCH_FREE: zend_switch_free(brk_opline, EX(Ts) TSRMLS_CC); break; case ZEND_FREE: zendi_zval_dtor(EX(Ts)[brk_opline->op1.u.var].tmp_var); break; } } array_offset = jmp_to->parent; } while (--nest_levels > 0); if (EX(opline)->opcode == ZEND_BRK) { EX(opline) = op_array->opcodes+jmp_to->brk; } else { EX(opline) = op_array->opcodes+jmp_to->cont; } FREE_OP(EX(Ts), &EX(opline)->op2, EG(free_op2)); continue; } /* Never reaches this point */ case ZEND_CASE: { int switch_expr_is_overloaded=0; if (EX(opline)->op1.op_type==IS_VAR) { if (EX(Ts)[EX(opline)->op1.u.var].var.ptr_ptr) { PZVAL_LOCK(*EX(Ts)[EX(opline)->op1.u.var].var.ptr_ptr); } else { switch_expr_is_overloaded = 1; if (EX(Ts)[EX(opline)->op1.u.var].EA.type==IS_STRING_OFFSET) { EX(Ts)[EX(opline)->op1.u.var].EA.data.str_offset.str->refcount++; } } } is_equal_function(&EX(Ts)[EX(opline)->result.u.var].tmp_var, get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R), get_zval_ptr(&EX(opline)->op2, EX(Ts), &EG(free_op2), BP_VAR_R) TSRMLS_CC); FREE_OP(EX(Ts), &EX(opline)->op2, EG(free_op2)); if (switch_expr_is_overloaded) { /* We only free op1 if this is a string offset, * Since if it is a TMP_VAR, it'll be reused by * other CASE opcodes (whereas string offsets * are allocated at each get_zval_ptr()) */ FREE_OP(EX(Ts), &EX(opline)->op1, EG(free_op1)); EX(Ts)[EX(opline)->op1.u.var].var.ptr_ptr = NULL; AI_USE_PTR(EX(Ts)[EX(opline)->op1.u.var].var); } } NEXT_OPCODE(); case ZEND_SWITCH_FREE: zend_switch_free(EX(opline), EX(Ts) TSRMLS_CC); NEXT_OPCODE(); case ZEND_NEW: { EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr = &EX(Ts)[EX(opline)->result.u.var].var.ptr; ALLOC_ZVAL(EX(Ts)[EX(opline)->result.u.var].var.ptr); object_init_ex(EX(Ts)[EX(opline)->result.u.var].var.ptr, EX(Ts)[EX(opline)->op1.u.var].EA.class_entry); EX(Ts)[EX(opline)->result.u.var].var.ptr->refcount=1; EX(Ts)[EX(opline)->result.u.var].var.ptr->is_ref=1; } NEXT_OPCODE(); case ZEND_CLONE: { zval *obj = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr = &EX(Ts)[EX(opline)->result.u.var].var.ptr; ALLOC_ZVAL(EX(Ts)[EX(opline)->result.u.var].var.ptr); EX(Ts)[EX(opline)->result.u.var].var.ptr->value.obj = Z_OBJ_HT_P(obj)->clone_obj(obj TSRMLS_CC); EX(Ts)[EX(opline)->result.u.var].var.ptr->type = IS_OBJECT; EX(Ts)[EX(opline)->result.u.var].var.ptr->refcount=1; EX(Ts)[EX(opline)->result.u.var].var.ptr->is_ref=1; NEXT_OPCODE(); } case ZEND_FETCH_CONSTANT: { zend_class_entry *ce; zval **value; if (EX(opline)->op1.op_type == IS_UNUSED) { if (EG(scope)) { ce = EG(scope); if (zend_hash_find(&ce->constants_table, EX(opline)->op2.u.constant.value.str.val, EX(opline)->op2.u.constant.value.str.len+1, (void **) &value) == SUCCESS) { zval_update_constant(value, (void *) 1 TSRMLS_CC); EX(Ts)[EX(opline)->result.u.var].tmp_var = **value; zval_copy_ctor(&EX(Ts)[EX(opline)->result.u.var].tmp_var); NEXT_OPCODE(); } } if (!zend_get_constant(EX(opline)->op2.u.constant.value.str.val, EX(opline)->op2.u.constant.value.str.len, &EX(Ts)[EX(opline)->result.u.var].tmp_var TSRMLS_CC)) { zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'", EX(opline)->op2.u.constant.value.str.val, EX(opline)->op2.u.constant.value.str.val); EX(Ts)[EX(opline)->result.u.var].tmp_var = EX(opline)->op2.u.constant; zval_copy_ctor(&EX(Ts)[EX(opline)->result.u.var].tmp_var); } NEXT_OPCODE(); } ce = EX(Ts)[EX(opline)->op1.u.var].EA.class_entry; if (&ce->constants_table == &EG(main_class_ptr)->constants_table) { if (!zend_get_constant(EX(opline)->op2.u.constant.value.str.val, EX(opline)->op2.u.constant.value.str.len, &EX(Ts)[EX(opline)->result.u.var].tmp_var TSRMLS_CC)) { zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'", EX(opline)->op2.u.constant.value.str.val, EX(opline)->op2.u.constant.value.str.val); EX(Ts)[EX(opline)->result.u.var].tmp_var = EX(opline)->op2.u.constant; zval_copy_ctor(&EX(Ts)[EX(opline)->result.u.var].tmp_var); } NEXT_OPCODE(); } if (zend_hash_find(&ce->constants_table, EX(opline)->op2.u.constant.value.str.val, EX(opline)->op2.u.constant.value.str.len+1, (void **) &value) == SUCCESS) { zval_update_constant(value, (void *) 1 TSRMLS_CC); EX(Ts)[EX(opline)->result.u.var].tmp_var = **value; zval_copy_ctor(&EX(Ts)[EX(opline)->result.u.var].tmp_var); } else { zend_error(E_ERROR, "Undefined class constant '%s'", EX(opline)->op2.u.constant.value.str.val); } } NEXT_OPCODE(); case ZEND_INIT_ARRAY: case ZEND_ADD_ARRAY_ELEMENT: { zval *array_ptr = &EX(Ts)[EX(opline)->result.u.var].tmp_var; zval *expr_ptr, **expr_ptr_ptr = NULL; zval *offset=get_zval_ptr(&EX(opline)->op2, EX(Ts), &EG(free_op2), BP_VAR_R); if (EX(opline)->extended_value) { expr_ptr_ptr=get_zval_ptr_ptr(&EX(opline)->op1, EX(Ts), BP_VAR_R); expr_ptr = *expr_ptr_ptr; } else { expr_ptr=get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); } if (EX(opline)->opcode==ZEND_INIT_ARRAY) { array_init(array_ptr); if (!expr_ptr) { NEXT_OPCODE(); } } if (!EX(opline)->extended_value && EG(free_op1)) { /* temporary variable */ zval *new_expr; ALLOC_ZVAL(new_expr); *new_expr = *expr_ptr; expr_ptr = new_expr; INIT_PZVAL(expr_ptr); } else { if (EX(opline)->extended_value) { SEPARATE_ZVAL_TO_MAKE_IS_REF(expr_ptr_ptr); expr_ptr = *expr_ptr_ptr; expr_ptr->refcount++; } else if (PZVAL_IS_REF(expr_ptr)) { zval *new_expr; ALLOC_ZVAL(new_expr); *new_expr = *expr_ptr; expr_ptr = new_expr; zendi_zval_copy_ctor(*expr_ptr); INIT_PZVAL(expr_ptr); } else { expr_ptr->refcount++; } } if (offset) { switch(offset->type) { case IS_DOUBLE: zend_hash_index_update(array_ptr->value.ht, (long) offset->value.dval, &expr_ptr, sizeof(zval *), NULL); break; case IS_LONG: zend_hash_index_update(array_ptr->value.ht, offset->value.lval, &expr_ptr, sizeof(zval *), NULL); break; case IS_STRING: zend_hash_update(array_ptr->value.ht, offset->value.str.val, offset->value.str.len+1, &expr_ptr, sizeof(zval *), NULL); break; case IS_NULL: zend_hash_update(array_ptr->value.ht, "", sizeof(""), &expr_ptr, sizeof(zval *), NULL); break; default: zval_ptr_dtor(&expr_ptr); /* do nothing */ break; } FREE_OP(EX(Ts), &EX(opline)->op2, EG(free_op2)); } else { zend_hash_next_index_insert(array_ptr->value.ht, &expr_ptr, sizeof(zval *), NULL); } } NEXT_OPCODE(); case ZEND_CAST: { zval *expr = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); zval *result = &EX(Ts)[EX(opline)->result.u.var].tmp_var; *result = *expr; if (!EG(free_op1)) { zendi_zval_copy_ctor(*result); } switch (EX(opline)->extended_value) { case IS_NULL: convert_to_null(result); break; case IS_BOOL: convert_to_boolean(result); break; case IS_LONG: convert_to_long(result); break; case IS_DOUBLE: convert_to_double(result); break; case IS_STRING: convert_to_string(result); break; case IS_ARRAY: convert_to_array(result); break; case IS_OBJECT: convert_to_object(result); break; } } NEXT_OPCODE(); case ZEND_INCLUDE_OR_EVAL: { zend_op_array *new_op_array=NULL; zval **original_return_value = EG(return_value_ptr_ptr); int return_value_used; zval *inc_filename = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); zval tmp_inc_filename; zend_bool failure_retval=0; if (inc_filename->type!=IS_STRING) { tmp_inc_filename = *inc_filename; zval_copy_ctor(&tmp_inc_filename); convert_to_string(&tmp_inc_filename); inc_filename = &tmp_inc_filename; } return_value_used = RETURN_VALUE_USED(EX(opline)); switch (EX(opline)->op2.u.constant.value.lval) { case ZEND_INCLUDE_ONCE: case ZEND_REQUIRE_ONCE: { char *opened_path=NULL; int dummy = 1; zend_file_handle file_handle; file_handle.handle.fp = zend_fopen(inc_filename->value.str.val, &opened_path); file_handle.type = ZEND_HANDLE_FP; file_handle.filename = inc_filename->value.str.val; file_handle.opened_path = opened_path; file_handle.free_filename = 0; if (file_handle.handle.fp) { if (!opened_path) { opened_path = file_handle.opened_path = estrndup(inc_filename->value.str.val, inc_filename->value.str.len); } if (zend_hash_add(&EG(included_files), opened_path, strlen(opened_path)+1, (void *)&dummy, sizeof(int), NULL)==SUCCESS) { new_op_array = zend_compile_file(&file_handle, (EX(opline)->op2.u.constant.value.lval==ZEND_INCLUDE_ONCE?ZEND_INCLUDE:ZEND_REQUIRE) TSRMLS_CC); zend_destroy_file_handle(&file_handle TSRMLS_CC); opened_path = NULL; /* zend_destroy_file_handle() already frees it */ } else { fclose(file_handle.handle.fp); failure_retval=1; } } else { if (EX(opline)->op2.u.constant.value.lval==ZEND_INCLUDE_ONCE) { zend_message_dispatcher(ZMSG_FAILED_INCLUDE_FOPEN, file_handle.filename); } else { zend_message_dispatcher(ZMSG_FAILED_REQUIRE_FOPEN, file_handle.filename); } } if (opened_path) { efree(opened_path); } break; } break; case ZEND_INCLUDE: case ZEND_REQUIRE: new_op_array = compile_filename(EX(opline)->op2.u.constant.value.lval, inc_filename TSRMLS_CC); break; case ZEND_EVAL: { char *eval_desc = zend_make_compiled_string_description("eval()'d code" TSRMLS_CC); new_op_array = compile_string(inc_filename, eval_desc TSRMLS_CC); efree(eval_desc); } break; EMPTY_SWITCH_DEFAULT_CASE() } if (inc_filename==&tmp_inc_filename) { zval_dtor(&tmp_inc_filename); } FREE_OP(EX(Ts), &EX(opline)->op1, EG(free_op1)); EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr = &EX(Ts)[EX(opline)->result.u.var].var.ptr; if (new_op_array) { zval *saved_object; zend_function *saved_function; EG(return_value_ptr_ptr) = EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr; EG(active_op_array) = new_op_array; EX(Ts)[EX(opline)->result.u.var].var.ptr = NULL; saved_object = EX(object); saved_function = EX(function_state).function; EX(function_state).function = (zend_function *) new_op_array; EX(object) = NULL; zend_execute(new_op_array TSRMLS_CC); EX(function_state).function = saved_function; EX(object) = saved_object; if (!return_value_used) { if (EX(Ts)[EX(opline)->result.u.var].var.ptr) { zval_ptr_dtor(&EX(Ts)[EX(opline)->result.u.var].var.ptr); } } else { /* return value is used */ if (!EX(Ts)[EX(opline)->result.u.var].var.ptr) { /* there was no return statement */ ALLOC_ZVAL(EX(Ts)[EX(opline)->result.u.var].var.ptr); INIT_PZVAL(EX(Ts)[EX(opline)->result.u.var].var.ptr); EX(Ts)[EX(opline)->result.u.var].var.ptr->value.lval = 1; EX(Ts)[EX(opline)->result.u.var].var.ptr->type = IS_BOOL; } } EG(opline_ptr) = &EX(opline); EG(active_op_array) = op_array; EG(function_state_ptr) = &EX(function_state); destroy_op_array(new_op_array); efree(new_op_array); } else { if (return_value_used) { ALLOC_ZVAL(EX(Ts)[EX(opline)->result.u.var].var.ptr); INIT_ZVAL(*EX(Ts)[EX(opline)->result.u.var].var.ptr); EX(Ts)[EX(opline)->result.u.var].var.ptr->value.lval = failure_retval; EX(Ts)[EX(opline)->result.u.var].var.ptr->type = IS_BOOL; } } EG(return_value_ptr_ptr) = original_return_value; } NEXT_OPCODE(); case ZEND_UNSET_VAR: { zval tmp, *variable; HashTable *target_symbol_table; variable = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); target_symbol_table = zend_get_target_symbol_table(EX(opline), EX(Ts), BP_VAR_IS TSRMLS_CC); if (variable->type != IS_STRING) { tmp = *variable; zval_copy_ctor(&tmp); convert_to_string(&tmp); variable = &tmp; } zend_hash_del(target_symbol_table, variable->value.str.val, variable->value.str.len+1); if (variable == &tmp) { zval_dtor(&tmp); } FREE_OP(EX(Ts), &EX(opline)->op1, EG(free_op1)); } NEXT_OPCODE(); case ZEND_UNSET_DIM_OBJ: { zval **container = get_zval_ptr_ptr(&EX(opline)->op1, EX(Ts), BP_VAR_R); zval *offset = get_zval_ptr(&EX(opline)->op2, EX(Ts), &EG(free_op2), BP_VAR_R); if (container) { HashTable *ht; if ((*container)->type == IS_ARRAY) { ht = (*container)->value.ht; } else { ht = NULL; if ((*container)->type == IS_OBJECT) { Z_OBJ_HT_P(*container)->unset_property(*container, offset TSRMLS_CC); } } if (ht) { switch (offset->type) { case IS_DOUBLE: case IS_RESOURCE: case IS_BOOL: case IS_LONG: { long index; if (offset->type == IS_DOUBLE) { index = (long) offset->value.lval; } else { index = offset->value.lval; } zend_hash_index_del(ht, index); break; } case IS_STRING: zend_hash_del(ht, offset->value.str.val, offset->value.str.len+1); break; case IS_NULL: zend_hash_del(ht, "", sizeof("")); break; default: zend_error(E_WARNING, "Illegal offset type in unset"); break; } } } else { /* overloaded element */ } FREE_OP(EX(Ts), &EX(opline)->op2, EG(free_op2)); } NEXT_OPCODE(); case ZEND_FE_RESET: { zval *array_ptr, **array_ptr_ptr; HashTable *fe_ht; if (EX(opline)->extended_value) { array_ptr_ptr = get_zval_ptr_ptr(&EX(opline)->op1, EX(Ts), BP_VAR_R); if (array_ptr_ptr == NULL) { MAKE_STD_ZVAL(array_ptr); } else { SEPARATE_ZVAL_IF_NOT_REF(array_ptr_ptr); array_ptr = *array_ptr_ptr; array_ptr->refcount++; } } else { array_ptr = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); if (EG(free_op1)) { /* IS_TMP_VAR */ zval *tmp; ALLOC_ZVAL(tmp); *tmp = *array_ptr; INIT_PZVAL(tmp); array_ptr = tmp; } else { array_ptr->refcount++; } } PZVAL_LOCK(array_ptr); EX(Ts)[EX(opline)->result.u.var].var.ptr = array_ptr; EX(Ts)[EX(opline)->result.u.var].var.ptr_ptr = &EX(Ts)[EX(opline)->result.u.var].var.ptr; if ((fe_ht = HASH_OF(array_ptr)) != NULL) { /* probably redundant */ zend_hash_internal_pointer_reset(fe_ht); } else { /* JMP to the end of foreach - TBD */ } } NEXT_OPCODE(); case ZEND_FE_FETCH: { zval *array = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); zval *result = &EX(Ts)[EX(opline)->result.u.var].tmp_var; zval **value, *key; char *str_key; ulong int_key; HashTable *fe_ht; PZVAL_LOCK(array); fe_ht = HASH_OF(array); if (!fe_ht) { zend_error(E_WARNING, "Invalid argument supplied for foreach()"); EX(opline) = op_array->opcodes+EX(opline)->op2.u.opline_num; continue; } else if (zend_hash_get_current_data(fe_ht, (void **) &value)==FAILURE) { EX(opline) = op_array->opcodes+EX(opline)->op2.u.opline_num; continue; } array_init(result); (*value)->refcount++; zend_hash_index_update(result->value.ht, 0, value, sizeof(zval *), NULL); ALLOC_ZVAL(key); INIT_PZVAL(key); switch (zend_hash_get_current_key(fe_ht, &str_key, &int_key, 1)) { case HASH_KEY_IS_STRING: key->value.str.val = str_key; key->value.str.len = strlen(str_key); key->type = IS_STRING; break; case HASH_KEY_IS_LONG: key->value.lval = int_key; key->type = IS_LONG; break; EMPTY_SWITCH_DEFAULT_CASE() } zend_hash_index_update(result->value.ht, 1, &key, sizeof(zval *), NULL); zend_hash_move_forward(fe_ht); } NEXT_OPCODE(); case ZEND_JMP_NO_CTOR: { zval *object_zval; zend_function *constructor; if (EX(opline)->op1.op_type == IS_VAR) { PZVAL_LOCK(*EX(Ts)[EX(opline)->op1.u.var].var.ptr_ptr); } object_zval = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); constructor = Z_OBJ_HT_P(object_zval)->get_constructor(object_zval TSRMLS_CC); EX(fbc_constructor) = NULL; if (constructor == NULL) { EX(opline) = op_array->opcodes + EX(opline)->op2.u.opline_num; continue; } else { EX(fbc_constructor) = constructor; } } NEXT_OPCODE(); case ZEND_ISSET_ISEMPTY_VAR: { zval tmp, *variable = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); zval **value; zend_bool isset = 1; HashTable *target_symbol_table; target_symbol_table = zend_get_target_symbol_table(EX(opline), EX(Ts), BP_VAR_IS TSRMLS_CC); if (variable->type != IS_STRING) { tmp = *variable; zval_copy_ctor(&tmp); convert_to_string(&tmp); variable = &tmp; } if (zend_hash_find(target_symbol_table, variable->value.str.val, variable->value.str.len+1, (void **) &value) == FAILURE) { isset = 0; } EX(Ts)[EX(opline)->result.u.var].tmp_var.type = IS_BOOL; switch (EX(opline)->extended_value) { case ZEND_ISSET: if (isset && Z_TYPE_PP(value) == IS_NULL) { EX(Ts)[EX(opline)->result.u.var].tmp_var.value.lval = 0; } else { EX(Ts)[EX(opline)->result.u.var].tmp_var.value.lval = isset; } break; case ZEND_ISEMPTY: if (!isset || !zend_is_true(*value)) { EX(Ts)[EX(opline)->result.u.var].tmp_var.value.lval = 1; } else { EX(Ts)[EX(opline)->result.u.var].tmp_var.value.lval = 0; } break; } if (variable == &tmp) { zval_dtor(&tmp); } FREE_OP(EX(Ts), &EX(opline)->op1, EG(free_op1)); } NEXT_OPCODE(); case ZEND_ISSET_ISEMPTY_DIM_OBJ: { zval **container = get_zval_ptr_ptr(&EX(opline)->op1, EX(Ts), BP_VAR_R); zval *offset = get_zval_ptr(&EX(opline)->op2, EX(Ts), &EG(free_op2), BP_VAR_R); zval **value = NULL; int result = 0; if (container) { if ((*container)->type == IS_ARRAY) { HashTable *ht; int isset = 0; ht = (*container)->value.ht; switch (offset->type) { case IS_DOUBLE: case IS_RESOURCE: case IS_BOOL: case IS_LONG: { long index; if (offset->type == IS_DOUBLE) { index = (long) offset->value.lval; } else { index = offset->value.lval; } if (zend_hash_index_find(ht, index, (void **) &value) == SUCCESS) { isset = 1; } break; } case IS_STRING: if (zend_hash_find(ht, offset->value.str.val, offset->value.str.len+1, (void **) &value) == SUCCESS) { isset = 1; } break; case IS_NULL: if (zend_hash_find(ht, "", sizeof(""), (void **) &value) == SUCCESS) { isset = 1; } break; default: zend_error(E_WARNING, "Illegal offset type in unset"); break; } switch (EX(opline)->extended_value) { case ZEND_ISSET: if (isset && Z_TYPE_PP(value) == IS_NULL) { result = 0; } else { result = isset; } break; case ZEND_ISEMPTY: if (!isset || !zend_is_true(*value)) { result = 0; } else { result = 1; } break; } } else { if ((*container)->type == IS_OBJECT) { result = Z_OBJ_HT_P(*container)->has_property(*container, offset, (EX(opline)->extended_value == ZEND_ISEMPTY) TSRMLS_CC); } } } else { /* string offsets */ } EX(Ts)[EX(opline)->result.u.var].tmp_var.type = IS_BOOL; switch (EX(opline)->extended_value) { case ZEND_ISSET: EX(Ts)[EX(opline)->result.u.var].tmp_var.value.lval = result; break; case ZEND_ISEMPTY: EX(Ts)[EX(opline)->result.u.var].tmp_var.value.lval = !result; break; } FREE_OP(EX(Ts), &EX(opline)->op2, EG(free_op2)); } NEXT_OPCODE(); break; case ZEND_EXIT: if (EX(opline)->op1.op_type != IS_UNUSED) { zval *ptr; ptr = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); if (Z_TYPE_P(ptr) == IS_LONG) { EG(exit_status) = Z_LVAL_P(ptr); } else { zend_print_variable(ptr); } FREE_OP(EX(Ts), &EX(opline)->op1, EG(free_op1)); } zend_bailout(); NEXT_OPCODE(); case ZEND_BEGIN_SILENCE: EX(Ts)[EX(opline)->result.u.var].tmp_var.value.lval = EG(error_reporting); EX(Ts)[EX(opline)->result.u.var].tmp_var.type = IS_LONG; /* shouldn't be necessary */ EG(error_reporting) = 0; NEXT_OPCODE(); case ZEND_END_SILENCE: EG(error_reporting) = EX(Ts)[EX(opline)->op1.u.var].tmp_var.value.lval; NEXT_OPCODE(); case ZEND_QM_ASSIGN: { zval *value = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); EX(Ts)[EX(opline)->result.u.var].tmp_var = *value; if (!EG(free_op1)) { zval_copy_ctor(&EX(Ts)[EX(opline)->result.u.var].tmp_var); } } NEXT_OPCODE(); case ZEND_EXT_STMT: if (!EG(no_extensions)) { zend_llist_apply_with_argument(&zend_extensions, (llist_apply_with_arg_func_t) zend_extension_statement_handler, op_array TSRMLS_CC); } NEXT_OPCODE(); case ZEND_EXT_FCALL_BEGIN: if (!EG(no_extensions)) { zend_llist_apply_with_argument(&zend_extensions, (llist_apply_with_arg_func_t) zend_extension_fcall_begin_handler, op_array TSRMLS_CC); } NEXT_OPCODE(); case ZEND_EXT_FCALL_END: if (!EG(no_extensions)) { zend_llist_apply_with_argument(&zend_extensions, (llist_apply_with_arg_func_t) zend_extension_fcall_end_handler, op_array TSRMLS_CC); } NEXT_OPCODE(); case ZEND_DECLARE_CLASS: do_bind_class(EX(opline), EG(function_table), EG(class_table)); NEXT_OPCODE() break; case ZEND_DECLARE_INHERITED_CLASS: do_bind_inherited_class(EX(opline), EG(function_table), EG(class_table), EX(Ts)[EX(opline)->extended_value].EA.class_entry); NEXT_OPCODE(); break; case ZEND_DECLARE_FUNCTION: do_bind_function(EX(opline), EG(function_table), EG(class_table), 0); NEXT_OPCODE(); case ZEND_TICKS: if (++EG(ticks_count)>=EX(opline)->op1.u.constant.value.lval) { EG(ticks_count)=0; if (zend_ticks_function) { zend_ticks_function(EX(opline)->op1.u.constant.value.lval); } } NEXT_OPCODE(); case ZEND_IS_CLASS: { zval *expr = get_zval_ptr(&EX(opline)->op1, EX(Ts), &EG(free_op1), BP_VAR_R); is_class_function(&EX(Ts)[EX(opline)->result.u.var].tmp_var, expr, EX(Ts)[EX(opline)->op2.u.var].EA.class_entry TSRMLS_CC); FREE_OP(EX(Ts), &EX(opline)->op1, EG(free_op1)); } NEXT_OPCODE(); case ZEND_EXT_NOP: case ZEND_NOP: NEXT_OPCODE(); EMPTY_SWITCH_DEFAULT_CASE() } } zend_error(E_ERROR, "Arrived at end of main loop which shouldn't happen"); }