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Posted to c-dev@axis.apache.org by "Bill Blough (Jira)" <ji...@apache.org> on 2020/04/07 15:59:00 UTC
[jira] [Updated] (AXIS2C-1392) axiom_element_find_namespace() can
erroneously return NULL with default namespaces
[ https://issues.apache.org/jira/browse/AXIS2C-1392?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Bill Blough updated AXIS2C-1392:
--------------------------------
Fix Version/s: (was: Current (Nightly))
1.7.0
> axiom_element_find_namespace() can erroneously return NULL with default namespaces
> ----------------------------------------------------------------------------------
>
> Key: AXIS2C-1392
> URL: https://issues.apache.org/jira/browse/AXIS2C-1392
> Project: Axis2-C
> Issue Type: Bug
> Components: core/clientapi
> Affects Versions: 1.6.0
> Environment: $ uname -a
> Linux clearwater 2.6.18-8.el5 #1 SMP Thu Mar 15 19:46:53 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux
> $ gcc --version
> gcc (GCC) 4.2.2
> Copyright (C) 2007 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions. There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> Reporter: Russell Tempero
> Assignee: Korale Gamaralalage Nandika Chandrasiri Jayawardana
> Priority: Major
> Fix For: 1.7.0
>
> Attachments: om_element.c.diff
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> The recursive function axiom_element_find_namespace() can erroneously return NULL when it encounters an element that has a default namespace. The problem is in the following block of code contained within axiom_element_find_namespace():
> default_ns = axiom_element_get_default_namespace(om_element,
> env, element_node);
> if (default_ns)
> {
> axis2_char_t *default_uri = NULL;
> default_uri = axiom_namespace_get_uri(default_ns, env);
> if (axutil_strcmp(uri, default_uri) == 0)
> {
> return default_ns;
> }
> else
> {
> return NULL;
> }
> }
> I am assuming that this code exists as an optimization to potentially avoid the for-loop a few lines farther down. The original intent appears to be to check if the needed namespace is equal to the default and, if so, return that and avoid the for-loop. However, instead of returning NULL if the default namespace is not equal to the desired namespace, the code should then continue on to the for-loop.
> Please review and test my attached fix (om_element.c.diff) for possible inclusion in the Axis2/C project. Let me know if I have drawn any incorrect conclusions or if something is not clear.
> Thanks,
> Russell
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