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75 lines
2.6 KiB
EmacsLisp
75 lines
2.6 KiB
EmacsLisp
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;;; starttls.el --- STARTTLS functions
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;; Copyright (C) 1999, 2000 Free Software Foundation, Inc.
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;; Author: Daiki Ueno <ueno@unixuser.org>
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;; Created: 1999/11/20
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;; Keywords: TLS, SSL, OpenSSL
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;; This file is not part of any package.
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;; This program is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU General Public License as
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;; published by the Free Software Foundation; either version 2, or (at
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;; your option) any later version.
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;; This program is distributed in the hope that it will be useful, but
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;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; 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 the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;; This module defines some utility functions for STARTTLS profiles.
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;; [RFC 2595] "Using TLS with IMAP, POP3 and ACAP"
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;; by Chris Newman <chris.newman@innosoft.com> (1999/06)
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;;; Code:
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(defgroup starttls nil
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"Support for `Transport Layer Security' protocol."
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:group 'ssl)
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(defcustom starttls-program "starttls"
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"The program to run in a subprocess to open an TLSv1 connection."
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:group 'starttls)
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(defcustom starttls-extra-args nil
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"Extra arguments to `starttls-program'"
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:group 'starttls)
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(defun starttls-negotiate (process)
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(signal-process (process-id process) 'SIGALRM))
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(defun starttls-open-stream (name buffer host service)
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"Open a TLS connection for a service to a host.
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Returns a subprocess-object to represent the connection.
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Input and output work as for subprocesses; `delete-process' closes it.
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Args are NAME BUFFER HOST SERVICE.
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NAME is name for process. It is modified if necessary to make it unique.
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BUFFER is the buffer (or `buffer-name') to associate with the process.
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Process output goes at end of that buffer, unless you specify
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an output stream or filter function to handle the output.
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BUFFER may be also nil, meaning that this process is not associated
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with any buffer
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Third arg is name of the host to connect to, or its IP address.
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Fourth arg SERVICE is name of the service desired, or an integer
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specifying a port number to connect to."
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(let* ((process-connection-type nil)
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(process (apply #'start-process
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name buffer starttls-program
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host (format "%s" service)
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starttls-extra-args)))
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(process-kill-without-query process)
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process))
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(provide 'starttls)
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;;; starttls.el ends here
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