forgot to free some memory .. bad.

@@ -82,6 +82,19 @@ ticket_get_owner (ticket_t ticket)
 }
 
 int
+ticket_set_pop (ticket_t ticket,
+		int (*_pop) __P ((ticket_t, const char *, char **)),
+		void *owner)
+{
+  if (ticket == NULL)
+    return EINVAL;
+  if (ticket->owner != owner)
+    return EACCES;
+  ticket->_pop = _pop;
+  return 0;
+}
+
+int
 ticket_pop (ticket_t ticket, const char *challenge, char **parg)
 {
   if (ticket == NULL || parg == NULL)

@@ -62,7 +62,8 @@ body_destroy (body_t *pbody, void *owner)
 	{
 	  if (body->file)
 	    fclose (body->file);
-	  free (body->filename);
+	  if (body->filename)
+	    free (body->filename);
 	  stream_destroy (&(body->stream), body);
 	}
       *pbody = NULL;

@@ -239,7 +239,7 @@ mbox_destroy (mailbox_t mailbox)
       for (i = 0; i < mud->umessages_count; i++)
 	{
 	  mbox_message_t mum = mud->umessages[i];
-	  if (mum == NULL)
+	  if (mum)
 	    {
 	      message_destroy (&(mum->message), mum);
 	      free (mum);
@@ -334,13 +334,14 @@ mbox_close (mailbox_t mailbox)
     {
       mbox_message_t mum = mud->umessages[i];
       /* Destroy the attach messages.  */
-      if (mum == NULL)
+      if (mum)
 	{
 	  message_destroy (&(mum->message), mum);
 	  free (mum);
 	}
     }
-  free (mud->umessages);
+  if (mud->umessages)
+    free (mud->umessages);
   mud->umessages = NULL;
   mud->messages_count = mud->umessages_count = 0;
   mud->size = 0;