sasl-ntlm.el, ntlm.el, md4.el: New files.

[gnus] / lisp / dig.el

diff --git a/lisp/dig.el b/lisp/dig.el
index f7883f8..e71d6db 100644 (file)
--- a/lisp/dig.el
+++ b/lisp/dig.el
@@ -1,10 +1,10 @@
 ;;; dig.el --- Domain Name System dig interface
-;; Copyright (c) 2000, 2001 Free Software Foundation, Inc.
+;; Copyright (c) 2000, 2001, 2003 Free Software Foundation, Inc.
 
 ;; Author: Simon Josefsson <simon@josefsson.org>
 ;; Keywords: DNS BIND dig
 
-;; This file is not a part of GNU Emacs, but the same permissions apply.
+;; This file is part of GNU Emacs.
 
 ;; GNU Emacs is free software; you can redistribute it and/or modify
 ;; it under the terms of the GNU General Public License as published
@@ -170,15 +170,18 @@ Optional arguments are passed to `dig-invoke'."
 
 ;; named for consistency with query-dns in dns.el
 (defun query-dig (domain &optional
-                  query-type query-class query-option dig-option server)
-  "Query addresses of a DOMAIN using dig, by calling `dig-invoke' and `dig-extract-rr'.
-Optional arguments are passed to `dig-invoke' and `dig-extract-rr'.  Returns nil for a nonexistent domain."
-(let ((buffer (dig-invoke domain query-type query-class query-option dig-option server)))
+                        query-type query-class query-option dig-option server)
+  "Query addresses of a DOMAIN using dig.
+It works by calling `dig-invoke' and `dig-extract-rr'.  Optional
+arguments are passed to `dig-invoke' and `dig-extract-rr'.  Returns
+nil for domain/class/type queries that results in no data."
+(let ((buffer (dig-invoke domain query-type query-class
+                         query-option dig-option server)))
   (when buffer
-      (switch-to-buffer buffer)
-      (setq digger (dig-extract-rr domain query-type query-class))
+    (switch-to-buffer buffer)
+    (let ((digger (dig-extract-rr domain query-type query-class)))
       (kill-buffer buffer)
-      digger)))
+      digger))))
 
 (provide 'dig)