(mailbox_create): Rewritten using registrar_lookup()

 /* GNU Mailutils -- a suite of utilities for electronic mail
-   Copyright (C) 1999, 2000, 2001, 2004 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2000, 2001, 2004, 2005 Free Software Foundation, Inc.
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
@@ -47,42 +47,22 @@
 int
 mailbox_create (mailbox_t *pmbox, const char *name)
 {
-  int status = EINVAL;
   record_t record = NULL;
-  int (*m_init) __P ((mailbox_t)) = NULL;
-  int (*u_init) __P ((url_t)) = NULL;
-  iterator_t iterator;
-  list_t list;
-  int found = 0;
 
   if (pmbox == NULL)
     return MU_ERR_OUT_PTR_NULL;
 
-  /* Look in the registrar, for a match  */
-  registrar_get_list (&list);
-  status = list_get_iterator (list, &iterator);
-  if (status != 0)
-    return status;
-  for (iterator_first (iterator); !iterator_is_done (iterator);
-       iterator_next (iterator))
-    {
-      iterator_current (iterator, (void **)&record);
-      if (record_is_scheme (record, name))
+  if (registrar_lookup (name, &record) == 0)
     {
+      int (*m_init) __P ((mailbox_t)) = NULL;
+      int (*u_init) __P ((url_t)) = NULL;
+      
       record_get_mailbox (record, &m_init);
       record_get_url (record, &u_init);
       if (m_init && u_init)
         {
-	      found = 1;
-	      break;
-	    }
-	}
-    }
-  iterator_destroy (&iterator);
-
-  if (found)
-    {
-      url_t url = NULL;
+	  int status;
+	  url_t url;
 	  mailbox_t mbox;
 
 	  /* Allocate memory for mbox.  */
@@ -92,7 +72,7 @@ mailbox_create (mailbox_t *pmbox, const char *name)
 
 	  /* Initialize the internal lock now, so the concrete mailbox
 	     could use it. */
-      status = monitor_create (&(mbox->monitor), 0, mbox);
+	  status = monitor_create (&mbox->monitor, 0, mbox);
 	  if (status != 0)
 	    {
 	      mailbox_destroy (&mbox);
@@ -120,11 +100,12 @@ mailbox_create (mailbox_t *pmbox, const char *name)
 	    mailbox_destroy (&mbox);
 	  else
 	    *pmbox = mbox;
-    }
-  else
-    status = MU_ERR_NO_HANDLER;
 
 	  return status;
+	}
+    }
+
+  return MU_ERR_NO_HANDLER;
 }
 
 void