lisp/setaddr.el

   1 ;;; setaddr.el --- determine whether sendmail is configured on this machine
   2
   3 ;; Copyright (C) 1997 Free Software Foundation, Inc.
   4
   5 ;; Maintainer: FSF
   6 ;; Keywords: mail
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24
  25 ;;; Commentary:
  26
  27 ;; If neither sendmail nor Emacs knows what host address to use
  28 ;; for this machine, ask for it, and save it in site-start.el
  29 ;; so we won't have to ask again.
  30
  31 ;; This uses a heuristic about the output from sendmail
  32 ;; which may or may not really work.  We will have to find
  33 ;; out by experiment.
  34
  35 ;;; Code:
  36
  37 (or mail-host-address
  38     (let (sendmail-configured)
  39       (with-temp-buffer " mail-host-address"
  40         (call-process sendmail-program nil t nil "-bv" "root")
  41         (goto-char (point-min))
  42         (setq sendmail-configured (looking-at "root@")))
  43       (or sendmail-configured
  44           (let (buffer)
  45                 (setq mail-host-address
  46                       (read-string "Specify your host's fully qualified domain name: ")))
  47           ;; Create an init file, and if we just read mail-host-address,
  48           ;; make the init file set it.
  49           (unwind-protect
  50               (save-excursion
  51                 (set-buffer (find-file-noselect "site-start.el"))
  52                 (setq buffer (current-buffer))
  53                 ;; Get rid of the line that ran this file.
  54                 (if (search-forward "(load \"setaddr\")\n")
  55                     (progn
  56                       (beginning-of-line)
  57                       (delete-region (point)
  58                                      (progn (end-of-line)
  59                                             (point)))))
  60                 ;; Add the results
  61                 (goto-char (point-max))
  62                 (insert "\n(setq mail-host-address "
  63                         (prin1-to-string mail-host-address)
  64                         ")\n")
  65                 (condition-case nil
  66                     (save-buffer)
  67                   (file-error nil)))
  68             (if buffer
  69                 (kill-buffer buffer))))))
  70
  71 ;;; setaddr.el ends here