lisp/rlogin.el

   1 ;;; rlogin.el --- remote login interface
   2
   3 ;; Maintainer: Noah Friedman <friedman@prep.ai.mit.edu>
   4 ;; Keywords: unix, comm
   5
   6 ;;; Copyright (C) 1992 Free Software Foundation, Inc.
   7 ;;;
   8 ;;; This program is free software; you can redistribute it and/or modify
   9 ;;; it under the terms of the GNU General Public License as published by
  10 ;;; the Free Software Foundation; either version 2, or (at your option)
  11 ;;; any later version.
  12 ;;;
  13 ;;; This program is distributed in the hope that it will be useful,
  14 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 ;;; GNU General Public License for more details.
  17 ;;;
  18 ;;; You should have received a copy of the GNU General Public License
  19 ;;; along with this program; if not, you can either send email to this
  20 ;;; program's author (see below) or write to:
  21 ;;;
  22 ;;;              The Free Software Foundation, Inc.
  23 ;;;              675 Massachusetts Avenue.
  24 ;;;              Cambridge, MA 02139, USA.
  25 ;;;
  26
  27 ;;; Todo: add directory tracking using ange-ftp style patchnames for the cwd.
  28
  29 ;;; Code:
  30
  31 (require 'comint)
  32
  33 (defvar rlogin-program "rlogin"
  34   "*Name of program to invoke rlogin")
  35
  36 (defvar rlogin-mode-hook nil
  37   "*Hooks to run after setting current buffer to rlogin-mode.")
  38
  39 ;; Initialize rlogin mode map.
  40 (defvar rlogin-mode-map '())
  41 (cond ((not rlogin-mode-map)
  42        (setq rlogin-mode-map (full-copy-sparse-keymap comint-mode-map))
  43        ;(define-key rlogin-mode-map "\M-\t" 'comint-dynamic-complete)
  44        ;(define-key rlogin-mode-map "\M-?"  'comint-dynamic-list-completions)
  45        (define-key rlogin-mode-map "\C-c\C-c" 'rlogin-send-Ctrl-C)
  46        (define-key rlogin-mode-map "\C-c\C-z" 'rlogin-send-Ctrl-Z)
  47        (define-key rlogin-mode-map "\C-c\C-\\" 'rlogin-send-Ctrl-backslash)
  48        (define-key rlogin-mode-map "\C-d" 'rlogin-delchar-or-send-Ctrl-D)))
  49
  50 (defun rlogin (host)
  51   (interactive "sOpen rlogin connection to host: ")
  52   (let* ((buffer-name (concat "rlogin-" host))
  53          (*buffer-name* (concat "*" buffer-name "*")))
  54     (cond ((not (comint-check-proc *buffer-name*))
  55            (let* ((xargs-name (intern-soft "explicit-rlogin-args"))
  56                   (xargs (and xargs-name (boundp xargs-name) (symbol-value xargs-name)))
  57                   (process-connection-type nil)
  58                   proc)
  59              (if xargs
  60                  (setq xargs (append xargs host))
  61                (setq xargs (list host)))
  62              (set-buffer (apply 'make-comint buffer-name rlogin-program nil xargs))
  63              (setq proc (get-process buffer-name))
  64              (set-process-filter proc 'rlogin-filter)
  65              (rlogin-mode))))
  66     (switch-to-buffer *buffer-name*)))
  67
  68 (defun rlogin-mode ()
  69   (interactive)
  70   (comint-mode)
  71   (setq comint-prompt-regexp shell-prompt-pattern)
  72   (setq major-mode 'rlogin-mode)
  73   (setq mode-name "Rlogin")
  74   (use-local-map rlogin-mode-map)
  75   (run-hooks 'rlogin-mode-hook))
  76
  77 (defun rlogin-filter (proc string)
  78   (let ((process-buffer (process-buffer proc))
  79         (at-eobp (eobp)))
  80     (save-excursion
  81       (set-buffer process-buffer)
  82       (goto-char (point-max))
  83       (let ((now (point))
  84             process-mark)
  85         (insert string)
  86         (subst-char-in-region now (point) ?\C-m ?\ )
  87         (subst-char-in-region now (point) ?\M-r ?\ )
  88         (setq process-mark (process-mark proc))
  89         (and process-mark
  90             (set-marker process-mark (point)))))
  91     (and at-eobp
  92          (eq process-buffer (current-buffer))
  93          (goto-char (point-max)))))
  94
  95 (defun rlogin-send-Ctrl-C ()
  96   (interactive)
  97   (send-string nil "\C-c"))
  98
  99 (defun rlogin-send-Ctrl-Z ()
 100   (interactive)
 101   (send-string nil "\C-z"))
 102
 103 (defun rlogin-send-Ctrl-backslash ()
 104   (interactive)
 105   (send-string nil "\C-\\"))
 106
 107 (defun rlogin-delchar-or-send-Ctrl-D (arg)
 108   "Delete ARG characters forward, or send a C-d to process if at end of
 109 buffer."
 110   (interactive "p")
 111   (if (eobp)
 112       (send-string nil "\C-d")
 113     (delete-char arg)))
 114
 115 ;;; rlogin.el ends here
 116