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e8af40ee | 1 | ;;; net-utils.el --- network functions |
8749abea | 2 | |
a84f13fb GM |
3 | ;; Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc. |
4 | ||
8749abea GM |
5 | ;; Author: Peter Breton <pbreton@cs.umb.edu> |
6 | ;; Created: Sun Mar 16 1997 | |
7 | ;; Keywords: network communications | |
ad21495f | 8 | ;; Time-stamp: <2001-12-25 11:44:47 pavel> |
8749abea GM |
9 | |
10 | ;; This file is part of GNU Emacs. | |
11 | ||
12 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
13 | ;; it under the terms of the GNU General Public License as published by | |
14 | ;; the Free Software Foundation; either version 2, or (at your option) | |
15 | ;; any later version. | |
16 | ||
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
23 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
24 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
25 | ;; Boston, MA 02111-1307, USA. | |
26 | ||
27 | ;;; Commentary: | |
28 | ;; | |
29 | ;; There are three main areas of functionality: | |
ddb62bf1 | 30 | ;; |
8749abea GM |
31 | ;; * Wrap common network utility programs (ping, traceroute, netstat, |
32 | ;; nslookup, arp, route). Note that these wrappers are of the diagnostic | |
33 | ;; functions of these programs only. | |
ddb62bf1 | 34 | ;; |
8749abea | 35 | ;; * Implement some very basic protocols in Emacs Lisp (finger and whois) |
ddb62bf1 | 36 | ;; |
8749abea GM |
37 | ;; * Support connections to HOST/PORT, generally for debugging and the like. |
38 | ;; In other words, for doing much the same thing as "telnet HOST PORT", and | |
39 | ;; then typing commands. | |
40 | ;; | |
41 | ;; PATHS | |
42 | ;; | |
43 | ;; On some systems, some of these programs are not in normal user path, | |
ddb62bf1 | 44 | ;; but rather in /sbin, /usr/sbin, and so on. |
8749abea GM |
45 | |
46 | ||
47 | ;;; Code: | |
48 | (eval-when-compile | |
49 | (require 'comint)) | |
50 | ||
51 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
52 | ;; Customization Variables | |
53 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
54 | ||
55 | (defgroup net-utils nil | |
56 | "Network utility functions." | |
57 | :prefix "net-utils-" | |
58 | :group 'comm | |
59 | :version "20.3" | |
60 | ) | |
61 | ||
ddb62bf1 | 62 | (defcustom net-utils-remove-ctl-m |
8749abea GM |
63 | (member system-type (list 'windows-nt 'msdos)) |
64 | "If non-nil, remove control-Ms from output." | |
65 | :group 'net-utils | |
66 | :type 'boolean | |
67 | ) | |
68 | ||
ddb62bf1 PB |
69 | (defcustom traceroute-program |
70 | (if (eq system-type 'windows-nt) | |
8749abea GM |
71 | "tracert" |
72 | "traceroute") | |
73 | "Program to trace network hops to a destination." | |
74 | :group 'net-utils | |
75 | :type 'string | |
76 | ) | |
77 | ||
78 | (defcustom traceroute-program-options nil | |
79 | "Options for the traceroute program." | |
80 | :group 'net-utils | |
81 | :type '(repeat string) | |
82 | ) | |
83 | ||
84 | (defcustom ping-program "ping" | |
85 | "Program to send network test packets to a host." | |
86 | :group 'net-utils | |
87 | :type 'string | |
88 | ) | |
89 | ||
90 | ;; On Linux and Irix, the system's ping program seems to send packets | |
91 | ;; indefinitely unless told otherwise | |
ddb62bf1 | 92 | (defcustom ping-program-options |
8749abea GM |
93 | (and (memq system-type (list 'linux 'gnu/linux 'irix)) |
94 | (list "-c" "4")) | |
95 | "Options for the ping program. | |
96 | These options can be used to limit how many ICMP packets are emitted." | |
97 | :group 'net-utils | |
98 | :type '(repeat string) | |
99 | ) | |
100 | ||
ddb62bf1 | 101 | (defcustom ipconfig-program |
8749abea GM |
102 | (if (eq system-type 'windows-nt) |
103 | "ipconfig" | |
104 | "ifconfig") | |
105 | "Program to print network configuration information." | |
106 | :group 'net-utils | |
107 | :type 'string | |
108 | ) | |
109 | ||
110 | (defcustom ipconfig-program-options | |
ddb62bf1 | 111 | (list |
8749abea GM |
112 | (if (eq system-type 'windows-nt) |
113 | "/all" "-a")) | |
114 | "Options for ipconfig-program." | |
115 | :group 'net-utils | |
116 | :type '(repeat string) | |
117 | ) | |
118 | ||
119 | (defcustom netstat-program "netstat" | |
120 | "Program to print network statistics." | |
121 | :group 'net-utils | |
122 | :type 'string | |
123 | ) | |
124 | ||
ddb62bf1 | 125 | (defcustom netstat-program-options |
8749abea GM |
126 | (list "-a") |
127 | "Options for netstat-program." | |
128 | :group 'net-utils | |
129 | :type '(repeat string) | |
130 | ) | |
131 | ||
132 | (defcustom arp-program "arp" | |
133 | "Program to print IP to address translation tables." | |
134 | :group 'net-utils | |
135 | :type 'string | |
136 | ) | |
137 | ||
ddb62bf1 | 138 | (defcustom arp-program-options |
8749abea GM |
139 | (list "-a") |
140 | "Options for arp-program." | |
141 | :group 'net-utils | |
142 | :type '(repeat string) | |
143 | ) | |
144 | ||
ddb62bf1 | 145 | (defcustom route-program |
8749abea GM |
146 | (if (eq system-type 'windows-nt) |
147 | "route" | |
148 | "netstat") | |
149 | "Program to print routing tables." | |
150 | :group 'net-utils | |
151 | :type 'string | |
152 | ) | |
153 | ||
ddb62bf1 | 154 | (defcustom route-program-options |
8749abea GM |
155 | (if (eq system-type 'windows-nt) |
156 | (list "print") | |
157 | (list "-r")) | |
158 | "Options for route-program." | |
159 | :group 'net-utils | |
160 | :type '(repeat string) | |
161 | ) | |
162 | ||
163 | (defcustom nslookup-program "nslookup" | |
164 | "Program to interactively query DNS information." | |
165 | :group 'net-utils | |
166 | :type 'string | |
167 | ) | |
168 | ||
169 | (defcustom nslookup-program-options nil | |
170 | "List of options to pass to the nslookup program." | |
171 | :group 'net-utils | |
172 | :type '(repeat string) | |
173 | ) | |
174 | ||
175 | (defcustom nslookup-prompt-regexp "^> " | |
8fb051f9 MB |
176 | "Regexp to match the nslookup prompt. |
177 | ||
178 | This variable is only used if the variable | |
179 | `comint-use-prompt-regexp-instead-of-fields' is non-nil." | |
8749abea GM |
180 | :group 'net-utils |
181 | :type 'regexp | |
182 | ) | |
183 | ||
184 | (defcustom dig-program "dig" | |
185 | "Program to query DNS information." | |
186 | :group 'net-utils | |
187 | :type 'string | |
188 | ) | |
189 | ||
190 | (defcustom ftp-program "ftp" | |
191 | "Progam to run to do FTP transfers." | |
192 | :group 'net-utils | |
193 | :type 'string | |
194 | ) | |
195 | ||
196 | (defcustom ftp-program-options nil | |
197 | "List of options to pass to the FTP program." | |
198 | :group 'net-utils | |
199 | :type '(repeat string) | |
200 | ) | |
201 | ||
202 | (defcustom ftp-prompt-regexp "^ftp>" | |
8fb051f9 MB |
203 | "Regexp which matches the FTP program's prompt. |
204 | ||
205 | This variable is only used if the variable | |
206 | `comint-use-prompt-regexp-instead-of-fields' is non-nil." | |
8749abea GM |
207 | :group 'net-utils |
208 | :type 'regexp | |
209 | ) | |
210 | ||
211 | (defcustom smbclient-program "smbclient" | |
212 | "Smbclient program." | |
213 | :group 'net-utils | |
214 | :type 'string | |
215 | ) | |
216 | ||
217 | (defcustom smbclient-program-options nil | |
218 | "List of options to pass to the smbclient program." | |
219 | :group 'net-utils | |
220 | :type '(repeat string) | |
221 | ) | |
222 | ||
223 | (defcustom smbclient-prompt-regexp "^smb: \>" | |
8fb051f9 MB |
224 | "Regexp which matches the smbclient program's prompt. |
225 | ||
226 | This variable is only used if the variable | |
227 | `comint-use-prompt-regexp-instead-of-fields' is non-nil." | |
8749abea GM |
228 | :group 'net-utils |
229 | :type 'regexp | |
230 | ) | |
231 | ||
76540917 PB |
232 | ;; Internal variables |
233 | (defvar network-connection-service nil) | |
234 | (defvar network-connection-host nil) | |
235 | ||
8749abea GM |
236 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
237 | ;; Nslookup goodies | |
238 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
239 | ||
240 | (defconst nslookup-font-lock-keywords | |
3478046b PB |
241 | (progn |
242 | (require 'font-lock) | |
243 | (list | |
3478046b PB |
244 | (list "^[A-Za-z0-9 _]+:" 0 font-lock-type-face) |
245 | (list "\\<\\(SOA\\|NS\\|MX\\|A\\|CNAME\\)\\>" | |
246 | 1 font-lock-keyword-face) | |
247 | ;; Dotted quads | |
248 | (list | |
249 | (mapconcat 'identity | |
250 | (make-list 4 "[0-9]+") | |
251 | "\\.") | |
252 | 0 font-lock-variable-name-face) | |
253 | ;; Host names | |
254 | (list | |
255 | (let ((host-expression "[-A-Za-z0-9]+")) | |
256 | (concat | |
257 | (mapconcat 'identity | |
258 | (make-list 2 host-expression) | |
259 | "\\.") | |
260 | "\\(\\." host-expression "\\)*") | |
261 | ) | |
262 | 0 font-lock-variable-name-face) | |
263 | )) | |
264 | "Expressions to font-lock for nslookup.") | |
8749abea | 265 | |
8749abea GM |
266 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
267 | ;; Utility functions | |
268 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
269 | ||
270 | ;; Simplified versions of some at-point functions from ffap.el. | |
271 | ;; It's not worth loading all of ffap just for these. | |
272 | (defun net-utils-machine-at-point () | |
273 | (let ((pt (point))) | |
274 | (buffer-substring-no-properties | |
275 | (save-excursion | |
276 | (skip-chars-backward "-a-zA-Z0-9.") | |
277 | (point)) | |
278 | (save-excursion | |
279 | (skip-chars-forward "-a-zA-Z0-9.") | |
280 | (skip-chars-backward "." pt) | |
281 | (point))))) | |
282 | ||
283 | (defun net-utils-url-at-point () | |
284 | (let ((pt (point))) | |
285 | (buffer-substring-no-properties | |
286 | (save-excursion | |
287 | (skip-chars-backward "--:=&?$+@-Z_a-z~#,%") | |
288 | (skip-chars-forward "^A-Za-z0-9" pt) | |
289 | (point)) | |
290 | (save-excursion | |
291 | (skip-chars-forward "--:=&?$+@-Z_a-z~#,%") | |
292 | (skip-chars-backward ":;.,!?" pt) | |
293 | (point))))) | |
294 | ||
295 | ||
296 | (defun net-utils-remove-ctrl-m-filter (process output-string) | |
297 | "Remove trailing control Ms." | |
298 | (let ((old-buffer (current-buffer)) | |
299 | (filtered-string output-string)) | |
300 | (unwind-protect | |
301 | (let ((moving)) | |
302 | (set-buffer (process-buffer process)) | |
303 | (setq moving (= (point) (process-mark process))) | |
ddb62bf1 | 304 | |
8749abea GM |
305 | (while (string-match "\r" filtered-string) |
306 | (setq filtered-string | |
307 | (replace-match "" nil nil filtered-string))) | |
308 | ||
309 | (save-excursion | |
310 | ;; Insert the text, moving the process-marker. | |
311 | (goto-char (process-mark process)) | |
312 | (insert filtered-string) | |
313 | (set-marker (process-mark process) (point))) | |
314 | (if moving (goto-char (process-mark process)))) | |
315 | (set-buffer old-buffer)))) | |
ddb62bf1 | 316 | |
8749abea GM |
317 | (defmacro net-utils-run-program (name header program &rest args) |
318 | "Run a network information program." | |
319 | ` (let ((buf (get-buffer-create (concat "*" ,name "*")))) | |
320 | (set-buffer buf) | |
321 | (erase-buffer) | |
322 | (insert ,header "\n") | |
ddb62bf1 | 323 | (set-process-filter |
8749abea GM |
324 | (apply 'start-process ,name buf ,program ,@args) |
325 | 'net-utils-remove-ctrl-m-filter) | |
ddb62bf1 PB |
326 | (display-buffer buf) |
327 | buf)) | |
8749abea GM |
328 | |
329 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
330 | ;; Wrappers for external network programs | |
331 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
332 | ||
333 | ;;;###autoload | |
334 | (defun traceroute (target) | |
335 | "Run traceroute program for TARGET." | |
336 | (interactive "sTarget: ") | |
ddb62bf1 | 337 | (let ((options |
8749abea GM |
338 | (if traceroute-program-options |
339 | (append traceroute-program-options (list target)) | |
340 | (list target)))) | |
341 | (net-utils-run-program | |
342 | (concat "Traceroute" " " target) | |
343 | (concat "** Traceroute ** " traceroute-program " ** " target) | |
344 | traceroute-program | |
345 | options | |
346 | ))) | |
347 | ||
348 | ;;;###autoload | |
349 | (defun ping (host) | |
350 | "Ping HOST. | |
ddb62bf1 | 351 | If your system's ping continues until interrupted, you can try setting |
8749abea | 352 | `ping-program-options'." |
ddb62bf1 | 353 | (interactive |
8749abea | 354 | (list (read-from-minibuffer "Ping host: " (net-utils-machine-at-point)))) |
ddb62bf1 | 355 | (let ((options |
8749abea GM |
356 | (if ping-program-options |
357 | (append ping-program-options (list host)) | |
358 | (list host)))) | |
359 | (net-utils-run-program | |
360 | (concat "Ping" " " host) | |
361 | (concat "** Ping ** " ping-program " ** " host) | |
362 | ping-program | |
363 | options | |
364 | ))) | |
365 | ||
366 | ;;;###autoload | |
367 | (defun ipconfig () | |
368 | "Run ipconfig program." | |
369 | (interactive) | |
370 | (net-utils-run-program | |
371 | "Ipconfig" | |
372 | (concat "** Ipconfig ** " ipconfig-program " ** ") | |
373 | ipconfig-program | |
374 | ipconfig-program-options | |
375 | )) | |
376 | ||
377 | ;; This is the normal name on most Unixes. | |
378 | ;;;###autoload | |
ddb62bf1 | 379 | (defalias 'ifconfig 'ipconfig) |
8749abea GM |
380 | |
381 | ;;;###autoload | |
382 | (defun netstat () | |
383 | "Run netstat program." | |
384 | (interactive) | |
385 | (net-utils-run-program | |
386 | "Netstat" | |
387 | (concat "** Netstat ** " netstat-program " ** ") | |
388 | netstat-program | |
389 | netstat-program-options | |
390 | )) | |
391 | ||
392 | ;;;###autoload | |
393 | (defun arp () | |
394 | "Run the arp program." | |
395 | (interactive) | |
396 | (net-utils-run-program | |
397 | "Arp" | |
398 | (concat "** Arp ** " arp-program " ** ") | |
399 | arp-program | |
400 | arp-program-options | |
401 | )) | |
402 | ||
403 | ;;;###autoload | |
404 | (defun route () | |
405 | "Run the route program." | |
406 | (interactive) | |
407 | (net-utils-run-program | |
408 | "Route" | |
409 | (concat "** Route ** " route-program " ** ") | |
410 | route-program | |
411 | route-program-options | |
412 | )) | |
413 | ||
414 | ;; FIXME -- Needs to be a process filter | |
415 | ;; (defun netstat-with-filter (filter) | |
416 | ;; "Run netstat program." | |
417 | ;; (interactive "sFilter: ") | |
418 | ;; (netstat) | |
419 | ;; (set-buffer (get-buffer "*Netstat*")) | |
420 | ;; (goto-char (point-min)) | |
421 | ;; (delete-matching-lines filter) | |
422 | ;; ) | |
423 | ||
424 | ;;;###autoload | |
425 | (defun nslookup-host (host) | |
426 | "Lookup the DNS information for HOST." | |
427 | (interactive | |
428 | (list (read-from-minibuffer "Lookup host: " (net-utils-machine-at-point)))) | |
ddb62bf1 | 429 | (let ((options |
8749abea GM |
430 | (if nslookup-program-options |
431 | (append nslookup-program-options (list host)) | |
432 | (list host)))) | |
433 | (net-utils-run-program | |
434 | "Nslookup" | |
435 | (concat "** " | |
436 | (mapconcat 'identity | |
437 | (list "Nslookup" host nslookup-program) | |
438 | " ** ")) | |
439 | nslookup-program | |
440 | options | |
441 | ))) | |
442 | ||
443 | ||
444 | ;;;###autoload | |
445 | (defun nslookup () | |
446 | "Run nslookup program." | |
447 | (interactive) | |
448 | (require 'comint) | |
449 | (comint-run nslookup-program) | |
8749abea GM |
450 | (nslookup-mode) |
451 | ) | |
452 | ||
453 | ;; Using a derived mode gives us keymaps, hooks, etc. | |
8fb051f9 | 454 | (define-derived-mode nslookup-mode comint-mode "Nslookup" |
8749abea | 455 | "Major mode for interacting with the nslookup program." |
ddb62bf1 | 456 | (set |
8749abea GM |
457 | (make-local-variable 'font-lock-defaults) |
458 | '((nslookup-font-lock-keywords))) | |
8749abea | 459 | (setq comint-prompt-regexp nslookup-prompt-regexp) |
8749abea GM |
460 | (setq comint-input-autoexpand t) |
461 | ) | |
462 | ||
463 | (define-key nslookup-mode-map "\t" 'comint-dynamic-complete) | |
464 | ||
8749abea GM |
465 | ;;;###autoload |
466 | (defun dig (host) | |
467 | "Run dig program." | |
468 | (interactive | |
469 | (list | |
470 | (progn | |
471 | (require 'ffap) | |
ddb62bf1 PB |
472 | (read-from-minibuffer |
473 | "Lookup host: " | |
8749abea GM |
474 | (or (ffap-string-at-point 'machine) ""))))) |
475 | (net-utils-run-program | |
476 | "Dig" | |
477 | (concat "** " | |
478 | (mapconcat 'identity | |
479 | (list "Dig" host dig-program) | |
480 | " ** ")) | |
481 | dig-program | |
482 | (list host) | |
ddb62bf1 | 483 | )) |
8749abea GM |
484 | |
485 | ;; This is a lot less than ange-ftp, but much simpler. | |
486 | ;;;###autoload | |
487 | (defun ftp (host) | |
488 | "Run ftp program." | |
ddb62bf1 | 489 | (interactive |
8749abea | 490 | (list |
ddb62bf1 | 491 | (read-from-minibuffer |
8749abea GM |
492 | "Ftp to Host: " (net-utils-machine-at-point)))) |
493 | (require 'comint) | |
494 | (let ((buf (get-buffer-create (concat "*ftp [" host "]*")))) | |
495 | (set-buffer buf) | |
8fb051f9 | 496 | (ftp-mode) |
8749abea GM |
497 | (comint-exec buf (concat "ftp-" host) ftp-program nil |
498 | (if ftp-program-options | |
499 | (append (list host) ftp-program-options) | |
500 | (list host))) | |
8fb051f9 | 501 | (pop-to-buffer buf))) |
8749abea | 502 | |
8fb051f9 | 503 | (define-derived-mode ftp-mode comint-mode "FTP" |
8749abea | 504 | "Major mode for interacting with the ftp program." |
8749abea | 505 | (setq comint-prompt-regexp ftp-prompt-regexp) |
8749abea | 506 | (setq comint-input-autoexpand t) |
8fb051f9 MB |
507 | ;; Only add the password-prompting hook if it's not already in the |
508 | ;; global hook list. This stands a small chance of losing, if it's | |
509 | ;; later removed from the global list (very small, since any | |
510 | ;; password prompts will probably immediately follow the initial | |
511 | ;; connection), but it's better than getting prompted twice for the | |
512 | ;; same password. | |
513 | (unless (memq 'comint-watch-for-password-prompt | |
514 | (default-value 'comint-output-filter-functions)) | |
515 | (add-hook 'comint-output-filter-functions 'comint-watch-for-password-prompt | |
516 | nil t)) | |
8749abea GM |
517 | ) |
518 | ||
8749abea GM |
519 | ;; Occasionally useful |
520 | (define-key ftp-mode-map "\t" 'comint-dynamic-complete) | |
521 | ||
522 | (defun smbclient (host service) | |
523 | "Connect to SERVICE on HOST via SMB." | |
ddb62bf1 | 524 | (interactive |
8749abea | 525 | (list |
ddb62bf1 | 526 | (read-from-minibuffer |
8749abea GM |
527 | "Connect to Host: " (net-utils-machine-at-point)) |
528 | (read-from-minibuffer "SMB Service: "))) | |
529 | (require 'comint) | |
530 | (let* ((name (format "smbclient [%s\\%s]" host service)) | |
531 | (buf (get-buffer-create (concat "*" name "*"))) | |
532 | (service-name (concat "\\\\" host "\\" service))) | |
533 | (set-buffer buf) | |
8fb051f9 | 534 | (smbclient-mode) |
8749abea GM |
535 | (comint-exec buf name smbclient-program nil |
536 | (if smbclient-program-options | |
537 | (append (list service-name) smbclient-program-options) | |
538 | (list service-name))) | |
8fb051f9 | 539 | (pop-to-buffer buf))) |
8749abea GM |
540 | |
541 | (defun smbclient-list-shares (host) | |
542 | "List services on HOST." | |
ddb62bf1 | 543 | (interactive |
8749abea | 544 | (list |
ddb62bf1 | 545 | (read-from-minibuffer |
8749abea GM |
546 | "Connect to Host: " (net-utils-machine-at-point)) |
547 | )) | |
548 | (let ((buf (get-buffer-create (format "*SMB Shares on %s*" host)))) | |
549 | (set-buffer buf) | |
8749abea | 550 | (smbclient-mode) |
8fb051f9 MB |
551 | (comint-exec buf "smbclient-list-shares" |
552 | smbclient-program nil (list "-L" host)) | |
553 | (pop-to-buffer buf))) | |
ddb62bf1 | 554 | |
8fb051f9 | 555 | (define-derived-mode smbclient-mode comint-mode "smbclient" |
8749abea | 556 | "Major mode for interacting with the smbclient program." |
8749abea | 557 | (setq comint-prompt-regexp smbclient-prompt-regexp) |
8749abea | 558 | (setq comint-input-autoexpand t) |
8fb051f9 MB |
559 | ;; Only add the password-prompting hook if it's not already in the |
560 | ;; global hook list. This stands a small chance of losing, if it's | |
561 | ;; later removed from the global list (very small, since any | |
562 | ;; password prompts will probably immediately follow the initial | |
563 | ;; connection), but it's better than getting prompted twice for the | |
564 | ;; same password. | |
565 | (unless (memq 'comint-watch-for-password-prompt | |
566 | (default-value 'comint-output-filter-functions)) | |
567 | (add-hook 'comint-output-filter-functions 'comint-watch-for-password-prompt | |
568 | nil t)) | |
8749abea GM |
569 | ) |
570 | ||
8749abea GM |
571 | |
572 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
573 | ;; Network Connections | |
574 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
575 | ||
576 | ;; Full list is available at: | |
577 | ;; ftp://ftp.isi.edu/in-notes/iana/assignments/port-numbers | |
ddb62bf1 | 578 | (defvar network-connection-service-alist |
8749abea GM |
579 | (list |
580 | (cons 'echo 7) | |
581 | (cons 'active-users 11) | |
582 | (cons 'daytime 13) | |
583 | (cons 'chargen 19) | |
584 | (cons 'ftp 21) | |
585 | (cons 'telnet 23) | |
586 | (cons 'smtp 25) | |
587 | (cons 'time 37) | |
588 | (cons 'whois 43) | |
589 | (cons 'gopher 70) | |
590 | (cons 'finger 79) | |
591 | (cons 'www 80) | |
592 | (cons 'pop2 109) | |
593 | (cons 'pop3 110) | |
594 | (cons 'sun-rpc 111) | |
595 | (cons 'nntp 119) | |
596 | (cons 'ntp 123) | |
597 | (cons 'netbios-name 137) | |
598 | (cons 'netbios-data 139) | |
599 | (cons 'irc 194) | |
600 | (cons 'https 443) | |
601 | (cons 'rlogin 513) | |
602 | ) | |
603 | "Alist of services and associated TCP port numbers. | |
9d551c66 RS |
604 | This list is not complete.") |
605 | ||
8749abea | 606 | ;; Workhorse macro |
ddb62bf1 | 607 | (defmacro run-network-program (process-name host port |
8749abea | 608 | &optional initial-string) |
8fb051f9 | 609 | `(let ((tcp-connection) |
8749abea GM |
610 | (buf) |
611 | ) | |
612 | (setq buf (get-buffer-create (concat "*" ,process-name "*"))) | |
613 | (set-buffer buf) | |
ddb62bf1 | 614 | (or |
8749abea | 615 | (setq tcp-connection |
ddb62bf1 | 616 | (open-network-stream |
8749abea GM |
617 | ,process-name |
618 | buf | |
619 | ,host | |
620 | ,port | |
621 | )) | |
622 | (error "Could not open connection to %s" ,host)) | |
623 | (erase-buffer) | |
624 | (set-marker (process-mark tcp-connection) (point-min)) | |
625 | (set-process-filter tcp-connection 'net-utils-remove-ctrl-m-filter) | |
626 | (and ,initial-string | |
ddb62bf1 | 627 | (process-send-string tcp-connection |
8749abea GM |
628 | (concat ,initial-string "\r\n"))) |
629 | (display-buffer buf))) | |
630 | ||
631 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
632 | ;; Simple protocols | |
633 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
634 | ||
086d5b87 GM |
635 | (defcustom finger-X.500-host-regexps nil |
636 | "A list of regular expressions matching host names. | |
637 | If a host name passed to `finger' matches one of these regular | |
638 | expressions, it is assumed to be a host that doesn't accept | |
639 | queries of the form USER@HOST, and wants a query containing USER only." | |
640 | :group 'net-utils | |
641 | :type '(repeat regexp) | |
642 | :version "21.1") | |
643 | ||
8749abea GM |
644 | ;; Finger protocol |
645 | ;;;###autoload | |
646 | (defun finger (user host) | |
647 | "Finger USER on HOST." | |
648 | ;; One of those great interactive statements that's actually | |
649 | ;; longer than the function call! The idea is that if the user | |
650 | ;; uses a string like "pbreton@cs.umb.edu", we won't ask for the | |
651 | ;; host name. If we don't see an "@", we'll prompt for the host. | |
652 | (interactive | |
653 | (let* ((answer (read-from-minibuffer "Finger User: " | |
654 | (net-utils-url-at-point))) | |
655 | (index (string-match (regexp-quote "@") answer))) | |
656 | (if index | |
086d5b87 GM |
657 | (list (substring answer 0 index) |
658 | (substring answer (1+ index))) | |
659 | (list answer | |
660 | (read-from-minibuffer "At Host: " | |
661 | (net-utils-machine-at-point)))))) | |
662 | (let* ((user-and-host (concat user "@" host)) | |
663 | (process-name (concat "Finger [" user-and-host "]")) | |
664 | (regexps finger-X.500-host-regexps) | |
665 | found) | |
8fb051f9 | 666 | (while (and regexps (not (string-match (car regexps) host))) |
086d5b87 GM |
667 | (setq regexps (cdr regexps))) |
668 | (when regexps | |
669 | (setq user-and-host user)) | |
ddb62bf1 PB |
670 | (run-network-program |
671 | process-name | |
672 | host | |
8749abea | 673 | (cdr (assoc 'finger network-connection-service-alist)) |
086d5b87 | 674 | user-and-host))) |
8749abea GM |
675 | |
676 | (defcustom whois-server-name "rs.internic.net" | |
677 | "Default host name for the whois service." | |
678 | :group 'net-utils | |
679 | :type 'string | |
680 | ) | |
681 | ||
682 | (defcustom whois-server-list | |
683 | '(("whois.arin.net") ; Networks, ASN's, and related POC's (numbers) | |
684 | ("rs.internic.net") ; domain related info | |
685 | ("whois.abuse.net") | |
686 | ("whois.apnic.net") | |
687 | ("nic.ddn.mil") | |
688 | ("whois.nic.mil") | |
689 | ("whois.nic.gov") | |
690 | ("whois.ripe.net")) | |
691 | "A list of whois servers that can be queried." | |
692 | :group 'net-utils | |
693 | :type '(repeat (list string))) | |
694 | ||
695 | (defcustom whois-server-tld | |
696 | '(("rs.internic.net" . "com") | |
697 | ("rs.internic.net" . "org") | |
698 | ("whois.ripe.net" . "be") | |
699 | ("whois.ripe.net" . "de") | |
700 | ("whois.ripe.net" . "dk") | |
701 | ("whois.ripe.net" . "it") | |
702 | ("whois.ripe.net" . "fi") | |
703 | ("whois.ripe.net" . "fr") | |
704 | ("whois.ripe.net" . "uk") | |
705 | ("whois.apnic.net" . "au") | |
706 | ("whois.apnic.net" . "ch") | |
707 | ("whois.apnic.net" . "hk") | |
708 | ("whois.apnic.net" . "jp") | |
709 | ("whois.nic.gov" . "gov") | |
710 | ("whois.nic.mil" . "mil")) | |
711 | "Alist to map top level domains to whois servers." | |
712 | :group 'net-utils | |
713 | :type '(repeat (cons string string))) | |
714 | ||
715 | (defcustom whois-guess-server t | |
716 | "If non-nil then whois will try to deduce the appropriate whois | |
717 | server from the query. If the query doesn't look like a domain or hostname | |
718 | then the server named by whois-server-name is used." | |
719 | :group 'net-utils | |
720 | :type 'boolean) | |
721 | ||
722 | (defun whois-get-tld (host) | |
723 | "Return the top level domain of `host', or nil if it isn't a domain name." | |
724 | (let ((i (1- (length host))) | |
725 | (max-len (- (length host) 5))) | |
726 | (while (not (or (= i max-len) (char-equal (aref host i) ?.))) | |
727 | (setq i (1- i))) | |
728 | (if (= i max-len) | |
729 | nil | |
730 | (substring host (1+ i))))) | |
731 | ||
732 | ;; Whois protocol | |
733 | ;;;###autoload | |
734 | (defun whois (arg search-string) | |
735 | "Send SEARCH-STRING to server defined by the `whois-server-name' variable. | |
736 | If `whois-guess-server' is non-nil, then try to deduce the correct server | |
737 | from SEARCH-STRING. With argument, prompt for whois server." | |
738 | (interactive "P\nsWhois: ") | |
739 | (let* ((whois-apropos-host (if whois-guess-server | |
740 | (rassoc (whois-get-tld search-string) | |
741 | whois-server-tld) | |
742 | nil)) | |
743 | (server-name (if whois-apropos-host | |
744 | (car whois-apropos-host) | |
745 | whois-server-name)) | |
746 | (host | |
747 | (if arg | |
748 | (completing-read "Whois server name: " | |
749 | whois-server-list nil nil "whois.") | |
750 | server-name))) | |
ddb62bf1 | 751 | (run-network-program |
8749abea GM |
752 | "Whois" |
753 | host | |
754 | (cdr (assoc 'whois network-connection-service-alist)) | |
755 | search-string | |
756 | ))) | |
757 | ||
758 | (defcustom whois-reverse-lookup-server "whois.arin.net" | |
759 | "Server which provides inverse DNS mapping." | |
760 | :group 'net-utils | |
761 | :type 'string | |
762 | ) | |
763 | ||
764 | ;;;###autoload | |
765 | (defun whois-reverse-lookup () | |
766 | (interactive) | |
767 | (let ((whois-server-name whois-reverse-lookup-server)) | |
768 | (call-interactively 'whois))) | |
769 | ||
770 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
771 | ;;; General Network connection | |
772 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
773 | ||
76540917 | 774 | ;; Using a derived mode gives us keymaps, hooks, etc. |
ddb62bf1 | 775 | (define-derived-mode |
76540917 PB |
776 | network-connection-mode comint-mode "Network-Connection" |
777 | "Major mode for interacting with the network-connection program." | |
778 | ) | |
779 | ||
780 | (defun network-connection-mode-setup (host service) | |
96c01bd4 RS |
781 | (make-local-variable 'network-connection-host) |
782 | (setq network-connection-host host) | |
783 | (make-local-variable 'network-connection-service) | |
ad21495f | 784 | (setq network-connection-service service)) |
76540917 | 785 | |
8749abea GM |
786 | ;;;###autoload |
787 | (defun network-connection-to-service (host service) | |
788 | "Open a network connection to SERVICE on HOST." | |
ddb62bf1 | 789 | (interactive |
8749abea GM |
790 | (list |
791 | (read-from-minibuffer "Host: " (net-utils-machine-at-point)) | |
ddb62bf1 PB |
792 | (completing-read "Service: " |
793 | (mapcar | |
794 | (function | |
8749abea GM |
795 | (lambda (elt) |
796 | (list (symbol-name (car elt))))) | |
797 | network-connection-service-alist)))) | |
ddb62bf1 PB |
798 | (network-connection |
799 | host | |
8749abea GM |
800 | (cdr (assoc (intern service) network-connection-service-alist))) |
801 | ) | |
802 | ||
803 | ;;;###autoload | |
804 | (defun network-connection (host port) | |
805 | "Open a network connection to HOST on PORT." | |
806 | (interactive "sHost: \nnPort: ") | |
807 | (network-service-connection host (number-to-string port))) | |
808 | ||
809 | (defun network-service-connection (host service) | |
810 | "Open a network connection to SERVICE on HOST." | |
811 | (require 'comint) | |
76540917 | 812 | (let* ( |
8749abea GM |
813 | (process-name (concat "Network Connection [" host " " service "]")) |
814 | (portnum (string-to-number service)) | |
76540917 | 815 | (buf (get-buffer-create (concat "*" process-name "*"))) |
8749abea GM |
816 | ) |
817 | (or (zerop portnum) (setq service portnum)) | |
ddb62bf1 | 818 | (make-comint |
8749abea GM |
819 | process-name |
820 | (cons host service)) | |
76540917 PB |
821 | (set-buffer buf) |
822 | (network-connection-mode) | |
823 | (network-connection-mode-setup host service) | |
824 | (pop-to-buffer buf) | |
8749abea GM |
825 | )) |
826 | ||
ddb62bf1 PB |
827 | (defun network-connection-reconnect () |
828 | "Reconnect a network connection, preserving the old input ring." | |
829 | (interactive) | |
830 | (let ((proc (get-buffer-process (current-buffer))) | |
831 | (old-comint-input-ring comint-input-ring) | |
832 | (host network-connection-host) | |
833 | (service network-connection-service) | |
834 | ) | |
835 | (if (not (or (not proc) | |
836 | (eq (process-status proc) 'closed))) | |
837 | (message "Still connected") | |
838 | (goto-char (point-max)) | |
839 | (insert (format "Reopening connection to %s\n" host)) | |
840 | (network-connection host | |
841 | (if (numberp service) | |
842 | service | |
843 | (cdr (assoc service network-connection-service-alist)))) | |
844 | (and old-comint-input-ring | |
845 | (setq comint-input-ring old-comint-input-ring)) | |
846 | ))) | |
847 | ||
8749abea GM |
848 | (provide 'net-utils) |
849 | ||
850 | ;;; net-utils.el ends here |