Move to ../net.

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diff --git a/lisp/gnus/dig.el b/lisp/gnus/dig.el
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-;;; dig.el --- Domain Name System dig interface
-
-;; Copyright (C) 2000, 2001, 2002, 2003, 2004,
-;;   2005, 2006, 2007 Free Software Foundation, Inc.
-
-;; Author: Simon Josefsson <simon@josefsson.org>
-;; Keywords: DNS BIND dig
-
-;; 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
-;; by the Free Software Foundation; either version 3, 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., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
-
-;;; Commentary:
-
-;; This provide an interface for "dig".
-;;
-;; For interactive use, try M-x dig and type a hostname.  Use `q' to quit
-;; dig buffer.
-;;
-;; For use in elisp programs, call `dig-invoke' and use
-;; `dig-extract-rr' to extract resource records.
-
-;;; Release history:
-
-;; 2000-10-28  posted on gnu.emacs.sources
-
-;;; Code:
-
-(eval-when-compile (require 'cl))
-
-(defgroup dig nil
-  "Dig configuration."
-  :group 'comm)
-
-(defcustom dig-program "dig"
-  "Name of dig (domain information groper) binary."
-  :type 'file
-  :group 'dig)
-
-(defcustom dig-dns-server nil
-  "DNS server to query.
-If nil, use system defaults."
-  :type '(choice (const :tag "System defaults")
-		 string)
-  :group 'dig)
-
-(defcustom dig-font-lock-keywords
-  '(("^;; [A-Z]+ SECTION:" 0 font-lock-keyword-face)
-    ("^;;.*" 0 font-lock-comment-face)
-    ("^; <<>>.*" 0 font-lock-type-face)
-    ("^;.*" 0 font-lock-function-name-face))
-  "Default expressions to highlight in dig mode."
-  :type 'sexp
-  :group 'dig)
-
-(defun dig-invoke (domain &optional
-			  query-type query-class query-option
-			  dig-option server)
-  "Call dig with given arguments and return buffer containing output.
-DOMAIN is a string with a DNS domain. QUERY-TYPE is an optional string
-with a DNS type. QUERY-CLASS is an optional string with a DNS class.
-QUERY-OPTION is an optional string with dig \"query options\".
-DIG-OPTIONS is an optional string with parameters for the dig program.
-SERVER is an optional string with a domain name server to query.
-
-Dig is an external program found in the BIND name server distribution,
-and is a commonly available debugging tool."
-  (let (buf cmdline)
-    (setq buf (generate-new-buffer "*dig output*"))
-    (if dig-option (push dig-option cmdline))
-    (if query-option (push query-option cmdline))
-    (if query-class (push query-class cmdline))
-    (if query-type (push query-type cmdline))
-    (push domain cmdline)
-    (if server (push (concat "@" server) cmdline)
-      (if dig-dns-server (push (concat "@" dig-dns-server) cmdline)))
-    (apply 'call-process dig-program nil buf nil cmdline)
-    buf))
-
-(defun dig-extract-rr (domain &optional type class)
-  "Extract resource records for DOMAIN, TYPE and CLASS from buffer.
-Buffer should contain output generated by `dig-invoke'."
-  (save-excursion
-    (goto-char (point-min))
-    (if (re-search-forward
-	 (concat domain "\\.?[\t ]+[0-9wWdDhHmMsS]+[\t ]+"
-		 (upcase (or class "IN")) "[\t ]+" (upcase (or type "A")))
-	 nil t)
-	(let (b e)
-	  (end-of-line)
-	  (setq e (point))
-	  (beginning-of-line)
-	  (setq b (point))
-	  (when (search-forward " (" e t)
-	    (search-forward " )"))
-	  (end-of-line)
-	  (setq e (point))
-	  (buffer-substring b e))
-      (and (re-search-forward (concat domain "\\.?[\t ]+[0-9wWdDhHmMsS]+[\t ]+"
-				      (upcase (or class "IN"))
-				      "[\t ]+CNAME[\t ]+\\(.*\\)$") nil t)
-	   (dig-extract-rr (match-string 1) type class)))))
-
-(defun dig-rr-get-pkix-cert (rr)
-  (let (b e str)
-    (string-match "[^\t ]+[\t ]+[0-9wWdDhHmMsS]+[\t ]+IN[\t ]+CERT[\t ]+\\(1\\|PKIX\\)[\t ]+[0-9]+[\t ]+[0-9]+[\t ]+(?" rr)
-    (setq b (match-end 0))
-    (string-match ")" rr)
-    (setq e (match-beginning 0))
-    (setq str (substring rr b e))
-    (while (string-match "[\t \n\r]" str)
-      (setq str (replace-match "" nil nil str)))
-    str))
-
-;; XEmacs does it like this.  For Emacs, we have to set the
-;; `font-lock-defaults' buffer-local variable.
-(put 'dig-mode 'font-lock-defaults '(dig-font-lock-keywords t))
-
-(put 'dig-mode 'mode-class 'special)
-
-(defvar dig-mode-map nil)
-(unless dig-mode-map
-  (setq dig-mode-map (make-sparse-keymap))
-  (suppress-keymap dig-mode-map)
-
-  (define-key dig-mode-map "q" 'dig-exit))
-
-(defun dig-mode ()
-  "Major mode for displaying dig output."
-  (interactive)
-  (kill-all-local-variables)
-  (setq mode-name "dig")
-  (setq major-mode 'dig-mode)
-  (use-local-map dig-mode-map)
-  (buffer-disable-undo)
-  (unless (featurep 'xemacs)
-    (set (make-local-variable 'font-lock-defaults)
-	 '(dig-font-lock-keywords t)))
-  (when (featurep 'font-lock)
-    (font-lock-set-defaults))
-  (gnus-run-mode-hooks 'dig-mode-hook))
-
-(defun dig-exit ()
-  "Quit dig output buffer."
-  (interactive)
-  (kill-buffer (current-buffer)))
-
-(defun dig (domain &optional
-		   query-type query-class query-option dig-option server)
-  "Query addresses of a DOMAIN using dig, by calling `dig-invoke'.
-Optional arguments are passed to `dig-invoke'."
-  (interactive "sHost: ")
-  (switch-to-buffer
-   (dig-invoke domain query-type query-class query-option dig-option server))
-  (goto-char (point-min))
-  (and (search-forward ";; ANSWER SECTION:" nil t)
-       (forward-line))
-  (dig-mode)
-  (setq buffer-read-only t)
-  (set-buffer-modified-p nil))
-
-;; 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.
-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)
-    (let ((digger (dig-extract-rr domain query-type query-class)))
-      (kill-buffer buffer)
-      digger))))
-
-(provide 'dig)
-
-;;; arch-tag: 1d61726e-9400-4013-9ae7-4035e0c7f7d6
-;;; dig.el ends here