[evolution] Bug 647708 - e_plugin_xml_prop() can return libxml2 allocated memory

[Matthew Barnes <mbarnes src gnome org>]

commit 37b3d691ca6f1cc8e305d89cd14aa35856423e8c
Author: Matthew Barnes <mbarnes redhat com>
Date:   Mon Apr 18 19:16:32 2011 -0400

    Bug 647708 - e_plugin_xml_prop() can return libxml2 allocated memory
    
    Always copy the xmlChar property into GLib-allocated memory.
    g_mem_is_system_malloc() has nothing to do with libxml2.

 e-util/e-plugin.c |   19 +++++++++----------
 1 files changed, 9 insertions(+), 10 deletions(-)
---
diff --git a/e-util/e-plugin.c b/e-util/e-plugin.c
index d3579b7..fa7f0d9 100644
--- a/e-util/e-plugin.c
+++ b/e-util/e-plugin.c
@@ -732,8 +732,7 @@ e_plugin_get_configure_widget (EPlugin *ep)
  * @id: The name of the property to retrieve.
  *
  * A static helper function to look up a property on an XML node, and
- * ensure it is allocated in GLib system memory.  If GLib isn't using
- * the system malloc then it must copy the property value.
+ * ensure it is allocated in GLib system memory.
  *
  * Return value: The property, allocated in GLib memory, or NULL if no
  * such property exists.
@@ -741,17 +740,17 @@ e_plugin_get_configure_widget (EPlugin *ep)
 gchar *
 e_plugin_xml_prop (xmlNodePtr node, const gchar *id)
 {
-	gchar *p = (gchar *)xmlGetProp (node, (const guchar *)id);
+	xmlChar *xml_prop;
+	gchar *glib_prop = NULL;
 
-	if (g_mem_is_system_malloc ()) {
-		return p;
-	} else {
-		gchar * out = g_strdup (p);
+	xml_prop = xmlGetProp (node, (xmlChar *) id);
 
-		if (p)
-			xmlFree (p);
-		return out;
+	if (xml_prop != NULL) {
+		glib_prop = g_strdup ((gchar *) xml_prop);
+		xmlFree (xml_prop);
 	}
+
+	return glib_prop;
 }
 
 /**