From: [EMAIL PROTECTED]
Operating system: Windows 2000
PHP version: 4.0.5
PHP Bug Type: COM related
Bug description: Cannot retrieve secondary object properties
The following code causes PHP to die at line 3:
$mgr = new COM("Factory");
$child = $mgr->GetChild(1);
echo $child->Attribute;
($mgr's method GetChild returns a COM object, which
has property 'Attribute').
The bug is in php_variant_to_pval() function in
ext/com/conversion.c, line 501:
handle->value.lval = zend_list_insert(var_arg->pdispVal, php_COM_get_le_idispatch());
it saves raw interface pointer var_arg->pdispVal, whereas everywhere else it is
expected that the list contains i_dispatch pointer.
The line should be replaced with
i_dispatch *obj = (i_dispatch *)emalloc(sizeof(*obj));
php_COM_set(obj,var_arg->pdispVal,FALSE); // not sure whether the last parameter
should be TRUE or FALSE
handle->value.lval = zend_list_insert(obj, php_COM_get_le_idispatch());
Also, the code in php_COM_set is somewhat bizarre:
- the returned value (hr) will not be set if cleanup is FALSE
- pDisp is unnecessarily cleared if cleanup is FALSE (it's a parameter, and it's not
used afterwards).
Also, I am not sure that reference counting for COM objects is correct.
Also, please comment your code. It took me a day to find out this little bug.
Sasha
--
Edit Bug report at: http://bugs.php.net/?id=10671&edit=1
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