Daniel Stine created AXIS2C-1602:
------------------------------------
Summary: memory leaks in xpath expressions
Key: AXIS2C-1602
URL: https://issues.apache.org/jira/browse/AXIS2C-1602
Project: Axis2-C
Issue Type: Bug
Components: xml/om
Affects Versions: 1.6.0
Environment: Windows XP, MSVS 2008
Reporter: Daniel Stine
axiom_xpath_free_expression doesn't free the parameters of the operations. At
least the following code is needed:
if (xpath_expr->operations)
{
num = axutil_array_list_size(xpath_expr->operations, env);
for (i=0; i<num; i++) {
op = (axiom_xpath_operation_t *)
axutil_array_list_get(xpath_expr->operations, env, i);
if (op->par1) {
node_test = (axiom_xpath_node_test_t *)op->par1;
if (node_test->prefix) AXIS2_FREE(env->allocator,
node_test->prefix);
if (node_test->name) AXIS2_FREE(env->allocator,
node_test->name);
if (node_test->lit) AXIS2_FREE(env->allocator,
node_test->lit);
AXIS2_FREE(env->allocator, op->par1);
}
if (op->par2) AXIS2_FREE(env->allocator, op->par2);
AXIS2_FREE(env->allocator, op);
}
axutil_array_list_free(xpath_expr->operations, env);
xpath_expr->operations = NULL;
}
------------------
An strdup of a name is left unfreed in axiom_xpath_compile_step in the else
clause.
name = axiom_xpath_compile_ncname(env, expr);
if (name)
{
AXIOM_XPATH_SKIP_WHITESPACES;
/* An axis */
if (AXIOM_XPATH_CURRENT == ':' && AXIOM_XPATH_NEXT(1) == ':')
{
[..snip..]
}
else
{
AXIS2_FREE(env->allocator, name); <----- NEEDED
axis = AXIOM_XPATH_AXIS_CHILD;
expr->expr_ptr = temp_ptr;
}
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