diff -r 4b96709ac242 -r b98346c5040d pep.c
--- a/pep.c	Wed Nov 11 17:05:46 2009 +0200
+++ b/pep.c	Sat Dec 26 04:18:28 2009 +0200
@@ -26,8 +26,18 @@
 
 #include "xmpp.h"
 #include "hooks.h"
+
 #include "pep.h"
 
+typedef struct pep_handler_struct pep_handler_t;
+
+struct pep_handler_struct {
+	gchar               *xmlns;
+	gpointer             data;
+	pep_xmlns_handler_t  handler;
+	GDestroyNotify       destroy_notify;
+};
+
 static GSList *pep_xmlns_handlers = NULL;
 
 static LmMessageHandler *pep_message_handler = NULL;
@@ -40,13 +50,22 @@
 	for (hel = pep_xmlns_handlers; hel; hel = hel->next) {
 		pep_handler_t *handler = (pep_handler_t *) hel->data;
 
-		if (!strcmp (handler->xmlns, xmlns))
+		if (!g_strcmp0 (handler->xmlns, xmlns))
 			return handler;
 	}
 
 	return NULL;
 }
 
+static void pep_free_handler (pep_handler_t *handler)
+{
+	if (handler -> destroy_notify)
+		handler -> destroy_notify (handler -> data);
+	g_free (handler -> xmlns);
+	g_free (handler);
+	return;
+}
+
 static LmHandlerResult pep_handler (const gchar *from, LmMessageNode *mnode)
 {
 	LmMessageNode *node = lm_message_node_get_child (mnode, "items");
@@ -81,11 +100,8 @@
 	const gchar   *from = lm_message_node_get_attribute (node, "from");
 	
 	node = lm_message_node_get_child (node, "pubsub");
-	if (node) {
-		const gchar *xmlns = lm_message_node_get_attribute (node, "xmlns");
-
-		if (!strcmp (xmlns, NS_PUBSUB))
-			return pep_handler (from, node);
+	if (node && !g_strcmp0 (lm_message_node_get_attribute (node, "xmlns"), NS_PUBSUB)) {
+		return pep_handler (from, node);
 	}
 	
 	return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;
@@ -97,38 +113,32 @@
 	const gchar   *from = lm_message_node_get_attribute (node, "from");
 	
 	node = lm_message_node_get_child (node, "event");
-	if (node) {
-		const gchar *xmlns = lm_message_node_get_attribute (node, "xmlns");
-
-		if (!strcmp (xmlns, NS_PUBSUB_EVENT))
-			return pep_handler (from, node);
+	if (node && !g_strcmp0 (lm_message_node_get_attribute (node, "xmlns"), NS_PUBSUB_EVENT)) {
+		return pep_handler (from, node);
 	}
 	
 	return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;
 }
 
-void pep_register_xmlns_handler (const gchar *xmlns, void (*handler) (const gchar *from, const gchar *node, LmMessageNode *n, const gchar *id, gpointer udata), gpointer udata, void (*data_destroy) (pep_handler_t *handler))
+void pep_register_xmlns_handler (const gchar *xmlns, pep_xmlns_handler_t handler, gpointer udata, GDestroyNotify notify)
 {
 	pep_handler_t *h = g_new (pep_handler_t, 1);
 
-	h->xmlns        = g_strdup (xmlns);
-	h->handler      = handler;
-	h->data         = udata;
-	h->data_destroy = data_destroy;
+	h->xmlns          = g_strdup (xmlns);
+	h->handler        = handler;
+	h->data           = udata;
+	h->destroy_notify = notify;
 
 	pep_xmlns_handlers = g_slist_append (pep_xmlns_handlers, h);
+	return;
 }
 
 void pep_unregister_xmlns_handler (const gchar *xmlns)
 {
 	pep_handler_t *handler = pep_find_handler (xmlns);
 	if (handler) {
+		pep_handler_free (handler);
 		pep_xmlns_handlers = g_slist_remove (pep_xmlns_handlers, handler);
-
-		if (handler->data_destroy)
-			handler->data_destroy (handler);
-		g_free (handler->xmlns);
-		g_free (handler);
 	}
 }
 
@@ -151,7 +161,7 @@
 // release handlers before reconnect
 static void pep_hh (guint32 hid, hk_arg_t *args, gpointer userdata)
 {
-	hk_arg_t *arg = args;
+	hk_arg_t *arg;
 
 	for (arg = args; arg->name; ++arg) {
 		if (!strcmp (arg->name, "hook")) {
@@ -187,6 +197,17 @@
 	// remove hook
 	hk_del_handler (pep_hh, NULL);
 
+	{ // unregister xmlns handlers
+		GSList *hel;
+
+		for (hel = pep_xmlns_handlers; hel; hel = hel -> next) {
+			pep_handler_t *handler = hel -> data;
+			pep_handler_free (handler);
+		}
+
+		g_slist_free (pep_xmlns_handlers);
+	}
+
 	// destroy handlers (invalidate it just to be sure, though this should not happen :)
 	lm_message_handler_invalidate (pep_message_handler);
 	lm_message_handler_invalidate (pep_iq_handler);