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66 lines
2.1 KiB
EmacsLisp
66 lines
2.1 KiB
EmacsLisp
;;; blessmail.el --- Decide whether movemail needs special privileges.
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;;; Copyright (C) 1994 Free Software Foundation, Inc.
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;; Maintainer: FSF
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;; Keywords: internal
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to
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;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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;;; Commentary:
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;; This is loaded into a bare Emacs to create the blessmail script,
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;; which (on systems that need it) is used during installation
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;; to give appropriate permissions to movemail.
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;;
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;; It has to be done from lisp in order to be sure of getting the
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;; correct value of rmail-spool-directory.
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;;; Code:
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(message "Using load-path %s" load-path)
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(load "paths.el")
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(load "site-init" t)
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(let ((dirname rmail-spool-directory) linkname attr modes)
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;; Check for symbolic link
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(while (setq linkname (file-symlink-p dirname))
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(setq dirname (if (file-name-absolute-p linkname)
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linkname
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(concat (file-name-directory dirname) linkname))))
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(setq attr (file-attributes dirname))
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(or (eq t (car attr))
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(signal 'error
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(list (format "%s is not a directory" rmail-spool-directory))))
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(setq modes (nth 8 attr))
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(insert "#!/bin/sh\n")
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(cond
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((= ?w (aref modes 8))
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(insert "exit 0"))
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((= ?w (aref modes 5))
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(insert "chgrp " (number-to-string (nth 3 attr))
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" $* && chmod g+s $*\n"))
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((= ?w (aref modes 2))
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(insert "chown " (number-to-string (nth 2 attr))
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" $* && chmod u+s $*\n"))
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(t
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(insert "chown root $* && chmod u+s $*\n"))))
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(write-region (point-min) (point-max) "blessmail")
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(kill-emacs)
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;;; blessmail.el ends here
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