--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lisp/w3/url-ns.el	Mon Aug 13 08:55:10 2007 +0200
@@ -0,0 +1,63 @@
+;;; url-ns.el --- Various netscape-ish functions for proxy definitions
+;; Author: wmperry
+;; Created: 1997/03/24 20:16:16
+;; Version: 1.1
+;; Keywords: comm, data, processes, hypermedia
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;; Copyright (c) 1997 Free Software Foundation, Inc.
+;;;
+;;; This file is not part of GNU Emacs, but the same permissions apply.
+;;;
+;;; GNU Emacs is free software; you can redistribute it and/or modify
+;;; it under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 2, or (at your option)
+;;; any later version.
+;;;
+;;; GNU Emacs is distributed in the hope that it will be useful,
+;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Emacs; see the file COPYING.  If not, write to the
+;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;;; Boston, MA 02111-1307, USA.
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun isPlainHostName (host)
+  (string-match "\\." host))
+
+(defun dnsDomainIs (host dom)
+  (setq host (url-gateway-nslookup-host host))
+  (string-match (concat (regexp-quote dom) "$") host))
+
+(defun dnsResolve (host)
+  (url-gateway-nslookup-host host))
+
+(defun isResolvable (host)
+  (if (string-match "^[0-9.]+$" host)
+      t
+    (not (string= host (url-gateway-nslookup-host host)))))
+
+(defun isInNet (ip net mask)
+  (let ((netc (split-string ip "\\."))
+	(ipc  (split-string net "\\."))
+	(maskc (split-string mask "\\.")))
+    (if (or (/= (length netc) (length ipc))
+	    (/= (length ipc) (length maskc)))
+	nil
+      (setq netc (mapcar 'string-to-int netc)
+	    ipc (mapcar 'string-to-int ipc)
+	    maskc (mapcar 'string-to-int maskc))
+      (and
+       (= (logand (nth 0 netc) (nth 0 maskc))
+	  (logand (nth 0 ipc)  (nth 0 maskc)))
+       (= (logand (nth 1 netc) (nth 1 maskc))
+	  (logand (nth 1 ipc)  (nth 1 maskc)))
+       (= (logand (nth 2 netc) (nth 2 maskc))
+	  (logand (nth 2 ipc)  (nth 2 maskc)))
+       (= (logand (nth 3 netc) (nth 3 maskc))
+	  (logand (nth 3 ipc)  (nth 3 maskc)))))))
+
+(provide 'url-ns)