| 1 | ;;; blessmail.el --- decide whether movemail needs special privileges -*- no-byte-compile: t -*- |
| 2 | |
| 3 | ;; Copyright (C) 1994, 2001-2014 Free Software Foundation, Inc. |
| 4 | |
| 5 | ;; Maintainer: emacs-devel@gnu.org |
| 6 | ;; Keywords: internal |
| 7 | ;; Package: emacs |
| 8 | |
| 9 | ;; This file is part of GNU Emacs. |
| 10 | |
| 11 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
| 12 | ;; it under the terms of the GNU General Public License as published by |
| 13 | ;; the Free Software Foundation, either version 3 of the License, or |
| 14 | ;; (at your option) any later version. |
| 15 | |
| 16 | ;; GNU Emacs is distributed in the hope that it will be useful, |
| 17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | ;; GNU General Public License for more details. |
| 20 | |
| 21 | ;; You should have received a copy of the GNU General Public License |
| 22 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
| 23 | |
| 24 | ;;; Commentary: |
| 25 | |
| 26 | ;; This is loaded into a bare Emacs to create the blessmail script, |
| 27 | ;; which (on systems that need it) is used during installation |
| 28 | ;; to give appropriate permissions to movemail. |
| 29 | ;; |
| 30 | ;; It has to be done from lisp in order to be sure of getting the |
| 31 | ;; correct value of rmail-spool-directory. |
| 32 | |
| 33 | ;;; Code: |
| 34 | |
| 35 | ;; These are no longer needed because we run this in emacs instead of temacs. |
| 36 | ;; (message "Using load-path %s" load-path) |
| 37 | ;; (load "paths.el") |
| 38 | ;; It is not safe to load site-init.el here, because it might have things in it |
| 39 | ;; that won't load properly unless all the rest of Emacs is loaded. |
| 40 | |
| 41 | (let ((dirname (directory-file-name rmail-spool-directory)) |
| 42 | linkname attr modes) |
| 43 | ;; Check for symbolic link |
| 44 | (while (setq linkname (file-symlink-p dirname)) |
| 45 | (setq dirname (if (file-name-absolute-p linkname) |
| 46 | linkname |
| 47 | (concat (file-name-directory dirname) linkname)))) |
| 48 | (insert "#!/bin/sh\n") |
| 49 | (setq attr (file-attributes dirname)) |
| 50 | (if (not (eq t (car attr))) |
| 51 | (insert (format "echo %s is not a directory\n" rmail-spool-directory)) |
| 52 | (setq modes (nth 8 attr)) |
| 53 | (cond ((= ?w (aref modes 8)) |
| 54 | ;; Nothing needs to be done. |
| 55 | ) |
| 56 | ((= ?w (aref modes 5)) |
| 57 | (insert "chgrp " (number-to-string (nth 3 attr)) |
| 58 | " $* && chmod g+s $*\n")) |
| 59 | ((= ?w (aref modes 2)) |
| 60 | (insert "chown " (number-to-string (nth 2 attr)) |
| 61 | " $* && chmod u+s $*\n")) |
| 62 | (t |
| 63 | (insert "chown root $* && chmod u+s $*\n")))) |
| 64 | (insert "echo mail directory = " dirname "\n")) |
| 65 | (write-region (point-min) (point-max) "blessmail") |
| 66 | (kill-emacs) |
| 67 | |
| 68 | ;;; blessmail.el ends here |