1 ;;; starttls.el --- STARTTLS functions
3 ;; Copyright (C) 1999, 2000 Free Software Foundation, Inc.
5 ;; Author: Daiki Ueno <ueno@unixuser.org>
7 ;; Keywords: TLS, SSL, OpenSSL, mail, news
9 ;; This file is part of GNU Emacs.
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 2, or (at your option)
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.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 ;; Boston, MA 02111-1307, USA.
28 ;; This module defines some utility functions for STARTTLS profiles.
30 ;; [RFC 2595] "Using TLS with IMAP, POP3 and ACAP"
31 ;; by Chris Newman <chris.newman@innosoft.com> (1999/06)
35 (defgroup starttls nil
36 "Support for `Transport Layer Security' protocol."
40 (defcustom starttls-program "starttls"
41 "The program to run in a subprocess to open an TLSv1 connection."
45 (defcustom starttls-extra-args nil
46 "Extra arguments to `starttls-program'."
47 :type '(repeat string)
50 (defun starttls-negotiate (process)
51 (signal-process (process-id process) 'SIGALRM))
53 (defun starttls-open-stream (name buffer host service)
54 "Open a TLS connection for a service to a host.
55 Returns a subprocess-object to represent the connection.
56 Input and output work as for subprocesses; `delete-process' closes it.
57 Args are NAME BUFFER HOST SERVICE.
58 NAME is name for process. It is modified if necessary to make it unique.
59 BUFFER is the buffer (or `buffer-name') to associate with the process.