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1 ;;; url-ns.el --- Various netscape-ish functions for proxy definitions
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2 ;; Author: wmperry
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3 ;; Created: 1997/03/24 20:16:16
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4 ;; Version: 1.1
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5 ;; Keywords: comm, data, processes, hypermedia
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6
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7 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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8 ;;; Copyright (c) 1997 Free Software Foundation, Inc.
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9 ;;;
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10 ;;; This file is not part of GNU Emacs, but the same permissions apply.
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11 ;;;
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12 ;;; GNU Emacs is free software; you can redistribute it and/or modify
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13 ;;; it under the terms of the GNU General Public License as published by
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14 ;;; the Free Software Foundation; either version 2, or (at your option)
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15 ;;; any later version.
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16 ;;;
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17 ;;; GNU Emacs is distributed in the hope that it will be useful,
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18 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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19 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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20 ;;; GNU General Public License for more details.
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21 ;;;
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22 ;;; You should have received a copy of the GNU General Public License
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23 ;;; along with GNU Emacs; see the file COPYING. If not, write to the
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24 ;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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25 ;;; Boston, MA 02111-1307, USA.
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26 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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27
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28 (defun isPlainHostName (host)
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29 (string-match "\\." host))
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30
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31 (defun dnsDomainIs (host dom)
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32 (setq host (url-gateway-nslookup-host host))
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33 (string-match (concat (regexp-quote dom) "$") host))
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34
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35 (defun dnsResolve (host)
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36 (url-gateway-nslookup-host host))
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37
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38 (defun isResolvable (host)
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39 (if (string-match "^[0-9.]+$" host)
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40 t
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41 (not (string= host (url-gateway-nslookup-host host)))))
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42
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43 (defun isInNet (ip net mask)
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44 (let ((netc (split-string ip "\\."))
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45 (ipc (split-string net "\\."))
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46 (maskc (split-string mask "\\.")))
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47 (if (or (/= (length netc) (length ipc))
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48 (/= (length ipc) (length maskc)))
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49 nil
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50 (setq netc (mapcar 'string-to-int netc)
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51 ipc (mapcar 'string-to-int ipc)
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52 maskc (mapcar 'string-to-int maskc))
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53 (and
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54 (= (logand (nth 0 netc) (nth 0 maskc))
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55 (logand (nth 0 ipc) (nth 0 maskc)))
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56 (= (logand (nth 1 netc) (nth 1 maskc))
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57 (logand (nth 1 ipc) (nth 1 maskc)))
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58 (= (logand (nth 2 netc) (nth 2 maskc))
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59 (logand (nth 2 ipc) (nth 2 maskc)))
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60 (= (logand (nth 3 netc) (nth 3 maskc))
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61 (logand (nth 3 ipc) (nth 3 maskc)))))))
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62
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63 (provide 'url-ns)
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