;;; telnet.el --- run a telnet session from within an Emacs buffer
-;;; Copyright (C) 1985, 1988, 1992 Free Software Foundation, Inc.
+;;; Copyright (C) 1985, 1988, 1992, 1994 Free Software Foundation, Inc.
;; Author: William F. Schelter
;; Maintainer: FSF
;; along with GNU Emacs; see the file COPYING. If not, write to
;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+;;; Commentary:
+
+;; This mode is intended to be used for telnet or rsh to a remode host;
+;; `telnet' and `rsh' are the two entry points. Multiple telnet or rsh
+;; sessions are supported.
+;;
+;; Normally, input is sent to the remote telnet/rsh line-by-line, as you
+;; type RET or LFD. C-c C-c sends a C-c to the remote immediately;
+;; C-c C-z sends C-z immediately. C-c C-q followed by any character
+;; sends that character immediately.
+;;
+;; All RET characters are filtered out of the output coming back from the
+;; remote system. The mode tries to do other useful translations based
+;; on what it sees coming back from the other system before the password
+;; query. It knows about UNIX, ITS, TOPS-20 and Explorer systems.
+
;;; Code:
-;;to do fix software types for lispm:
-;;to eval current expression. Also to try to send escape keys correctly.
-;;essentially we'll want the rubout-handler off.
+;; to do fix software types for lispm:
+;; to eval current expression. Also to try to send escape keys correctly.
+;; essentially we'll want the rubout-handler off.
;; filter is simplistic but should be okay for typical shell usage.
;; needs hacking if it is going to deal with asynchronous output in a sane
(defvar telnet-new-line "\r")
(defvar telnet-mode-map nil)
-(defvar telnet-prompt-pattern "^[^#$%>]*[#$%>] *")
+(defvar telnet-prompt-pattern "^[^#$%>\n]*[#$%>] *")
(defvar telnet-replace-c-g nil)
(make-variable-buffer-local
(defvar telnet-remote-echoes t
(defvar telnet-interrupt-string "\C-c" "String sent by C-c."))
(defvar telnet-count 0
- "Number of output strings read from the telnet process
-while looking for the initial password.")
+ "Number of output strings from telnet process while looking for password.")
+(make-variable-buffer-local 'telnet-count)
+
+(defvar telnet-program "telnet"
+ "Program to run to open a telnet connection.")
+
+(defvar rsh-program
+ (if (memq system-type '(hpux usg-unix-v))
+ "remsh" "rsh")
+ "Program to run for opening a remote shell.")
(defvar telnet-initial-count -50
- "Initial value of telnet-count. Should be set to the negative of the
+ "Initial value of `telnet-count'. Should be set to the negative of the
number of terminal writes telnet will make setting up the host connection.")
(defvar telnet-maximum-count 4
- "Maximum value telnet-count can have.
+ "Maximum value `telnet-count' can have.
After this many passes, we stop looking for initial setup data.
Should be set to the number of terminal writes telnet will make
-rejecting one login and prompting for the again for a username and password.")
+rejecting one login and prompting again for a username and password.")
(defun telnet-interrupt-subjob ()
(interactive)
; initialization on first load.
(if telnet-mode-map
nil
- (setq telnet-mode-map (copy-keymap comint-mode-map))
+ (setq telnet-mode-map (nconc (make-sparse-keymap) comint-mode-map))
(define-key telnet-mode-map "\C-m" 'telnet-send-input)
; (define-key telnet-mode-map "\C-j" 'telnet-send-input)
(define-key telnet-mode-map "\C-c\C-q" 'send-process-next-char)
((string-match "tops-20" string) ;;maybe add telnet-replace-c-g
(setq telnet-prompt-pattern "[@>]*"))
((string-match "its" string)
- (setq telnet-prompt-pattern "^[^*>]*[*>] *"))
+ (setq telnet-prompt-pattern "^[^*>\n]*[*>] *"))
((string-match "explorer" string) ;;explorer telnet needs work
(setq telnet-replace-c-g ?\n))))
(setq comint-prompt-regexp telnet-prompt-pattern))
(error "No such host."))
((string-match "passw" string)
(telnet-filter proc string)
- (let* ((echo-keystrokes 0)
- (password (read-password)))
- (setq telnet-count 0)
- (send-string proc (concat password telnet-new-line))))
+ (setq telnet-count 0)
+ (send-string proc (concat (comint-read-noecho "Password: " t)
+ telnet-new-line)))
(t (telnet-check-software-type-initialize string)
(telnet-filter proc string)
(cond ((> telnet-count telnet-maximum-count)
(set-process-filter proc 'telnet-filter))
(t (setq telnet-count (1+ telnet-count)))))))
+;; Identical to comint-simple-send, except that it sends telnet-new-line
+;; instead of "\n".
+(defun telnet-simple-send (proc string)
+ (comint-send-string proc string)
+ (comint-send-string proc telnet-new-line))
+
(defun telnet-filter (proc string)
- (let ((at-end
- (and (eq (process-buffer proc) (current-buffer))
- (= (point) (point-max)))))
- (save-excursion
- (set-buffer (process-buffer proc))
+ (save-excursion
+ (set-buffer (process-buffer proc))
+ (let* ((last-insertion (marker-position (process-mark proc)))
+ (delta (- (point) last-insertion))
+ (ie (and comint-last-input-end
+ (marker-position comint-last-input-end)))
+ (w (get-buffer-window (current-buffer)))
+ (ws (and w (window-start w))))
+ (goto-char last-insertion)
+ (insert-before-markers string)
+ (set-marker (process-mark proc) (point))
+ (if ws (set-window-start w ws t))
+ (if ie (set-marker comint-last-input-end ie))
+ (while (progn (skip-chars-backward "^\C-m" last-insertion)
+ (> (point) last-insertion))
+ (delete-region (1- (point)) (point)))
(goto-char (process-mark proc))
- (let ((now (point)))
- ;; Insert STRING, omitting all C-m characters.
- (let ((index 0) c-m)
- (while (setq c-m (string-match "\C-m" string index))
- (insert-before-markers (substring string index c-m))
- (setq index (1+ c-m)))
- (insert-before-markers (substring string index)))
- (and telnet-replace-c-g
- (subst-char-in-region now (point) ?\C-g telnet-replace-c-g)))
-; (if (and (integer-or-marker-p last-input-start)
-; (marker-position last-input-start)
-; telnet-remote-echoes)
-; (delete-region last-input-start last-input-end))
- )
- (if at-end
- (goto-char (point-max)))))
+ (and telnet-replace-c-g
+ (subst-char-in-region last-insertion (point) ?\C-g
+ telnet-replace-c-g t))
+ ;; If point is after the insertion place, move it
+ ;; along with the text.
+ (if (> delta 0)
+ (goto-char (+ (process-mark proc) delta))))))
(defun telnet-send-input ()
(interactive)
comint-last-input-end)))
;;;###autoload
-(defun telnet (arg)
+(defun telnet (host)
"Open a network login connection to host named HOST (a string).
-Communication with HOST is recorded in a buffer *HOST-telnet*.
+Communication with HOST is recorded in a buffer `*telnet-HOST*'.
Normally input is edited in Emacs and sent a line at a time."
(interactive "sOpen telnet connection to host: ")
- (let ((name (concat arg "-telnet" )))
- (switch-to-buffer (make-comint name "telnet"))
- (set-process-filter (get-process name) 'telnet-initial-filter)
- ;; Don't send the `open' cmd till telnet is ready for it.
- (accept-process-output (get-process name))
- (erase-buffer)
- (send-string name (concat "open " arg "\n"))
- (telnet-mode)
- (setq telnet-count telnet-initial-count)))
+ (let* ((comint-delimiter-argument-list '(?\ ?\t))
+ (name (concat "telnet-" (comint-arguments host 0 nil) ))
+ (buffer (get-buffer (concat "*" name "*"))))
+ (if (and buffer (get-buffer-process buffer))
+ (switch-to-buffer (concat "*" name "*"))
+ (switch-to-buffer (make-comint name telnet-program))
+ (set-process-filter (get-process name) 'telnet-initial-filter)
+ ;; Don't send the `open' cmd till telnet is ready for it.
+ (accept-process-output (get-process name))
+ (erase-buffer)
+ (send-string name (concat "open " host "\n"))
+ (telnet-mode)
+ (setq comint-input-sender 'telnet-simple-send)
+ (setq telnet-count telnet-initial-count))))
(defun telnet-mode ()
- "This mode is for use during telnet from a buffer to another
-host. It has most of the same commands as comint-mode.
+ "This mode is for using telnet (or rsh) from a buffer to another host.
+It has most of the same commands as comint-mode.
There is a variable ``telnet-interrupt-string'' which is the character
sent to try to stop execution of a job on the remote host.
Data is sent to the remote host when RET is typed.
\\{telnet-mode-map}
-
-Bugs:
---Replaces \r by a space, really should remove."
+"
(interactive)
(comint-mode)
(setq major-mode 'telnet-mode
(use-local-map telnet-mode-map)
(run-hooks 'telnet-mode-hook))
-(defun read-password ()
- (let ((answ "") tem)
- (message "Reading password...")
- (while (prog1 (not (memq (setq tem (read-char)) '(?\C-m ?\n ?\C-g)))
- (setq quit-flag nil))
- (setq answ (concat answ (char-to-string tem))))
- answ))
+;;;###autoload
+(defun rsh (host)
+ "Open a network login connection to host named HOST (a string).
+Communication with HOST is recorded in a buffer *HOST-rsh*.
+Normally input is edited in Emacs and sent a line at a time."
+ (interactive "sOpen rsh connection to host: ")
+ (require 'shell)
+ (let ((name (concat host "-rsh" )))
+ (switch-to-buffer (make-comint name rsh-program nil host))
+ (set-process-filter (get-process name) 'telnet-initial-filter)
+ (telnet-mode)
+ (setq telnet-count -16)))
(provide 'telnet)
HCoop / bpt / emacs.git / blobdiff