tramp-smb.el 38.1 KB
Newer Older
1 2
;;; tramp-smb.el --- Tramp access functions for SMB servers -*- coding: iso-8859-1; -*-

Glenn Morris's avatar
Glenn Morris committed
3
;; Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
4

Michael Albinus's avatar
Michael Albinus committed
5
;; Author: Michael Albinus <michael.albinus@gmx.de>
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
;; Keywords: comm, processes

;; This file is part of GNU Emacs.

;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING.  If not, write to the
Lute Kamstra's avatar
Lute Kamstra committed
22 23
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

;;; Commentary:

;; Access functions for SMB servers like SAMBA or M$ Windows from Tramp.

;;; Code:

(require 'tramp)

;; Pacify byte-compiler
(eval-when-compile
  (require 'cl)
  (require 'custom)
  ;; Emacs 19.34 compatibility hack -- is this needed?
  (or (>= emacs-major-version 20)
      (load "cl-seq")))

41 42 43 44 45 46 47 48
;; Avoid byte-compiler warnings if the byte-compiler supports this.
;; Currently, XEmacs supports this.
(eval-when-compile
  (when (fboundp 'byte-compiler-options)
    (let (unused-vars) ; Pacify Emacs byte-compiler
      (defalias 'warnings 'identity) ; Pacify Emacs byte-compiler
      (byte-compiler-options (warnings (- unused-vars))))))

49 50 51 52 53 54 55 56 57 58 59 60
;; Define SMB method ...
(defcustom tramp-smb-method "smb"
  "*Method to connect SAMBA and M$ SMB servers."
  :group 'tramp
  :type 'string)

;; ... and add it to the method list.
(add-to-list 'tramp-methods (cons tramp-smb-method nil))

;; Add a default for `tramp-default-method-alist'. Rule: If there is
;; a domain in USER, it must be the SMB method.
(add-to-list 'tramp-default-method-alist
61
	     (list "" "%" tramp-smb-method))
62 63 64 65 66 67 68 69 70 71 72

;; Add completion function for SMB method.
(tramp-set-completion-function
 tramp-smb-method
 '((tramp-parse-netrc "~/.netrc")))

(defcustom tramp-smb-program "smbclient"
  "*Name of SMB client to run."
  :group 'tramp
  :type 'string)

Michael Albinus's avatar
Michael Albinus committed
73
(defconst tramp-smb-prompt "^smb: .+> \\|^\\s-+Server\\s-+Comment$"
74 75 76 77 78 79 80 81 82
  "Regexp used as prompt in smbclient.")

(defconst tramp-smb-errors
  (mapconcat
   'identity
   '(; Connection error
     "Connection to \\S-+ failed"
     ; Samba
     "ERRDOS"
83
     "ERRSRV"
84 85 86 87 88 89 90 91
     "ERRbadfile"
     "ERRbadpw"
     "ERRfilexists"
     "ERRnoaccess"
     "ERRnomem"
     "ERRnosuchshare"
     ; Windows NT 4.0, Windows 5.0 (Windows 2000), Windows 5.1 (Windows XP)
     "NT_STATUS_ACCESS_DENIED"
92
     "NT_STATUS_ACCOUNT_LOCKED_OUT"
93 94 95
     "NT_STATUS_BAD_NETWORK_NAME"
     "NT_STATUS_CANNOT_DELETE"
     "NT_STATUS_LOGON_FAILURE"
96
     "NT_STATUS_NETWORK_ACCESS_DENIED"
97 98 99
     "NT_STATUS_NO_SUCH_FILE"
     "NT_STATUS_OBJECT_NAME_INVALID"
     "NT_STATUS_OBJECT_NAME_NOT_FOUND"
100 101
     "NT_STATUS_SHARING_VIOLATION"
     "NT_STATUS_WRONG_PASSWORD")
102 103 104 105 106 107 108 109 110 111 112 113 114 115
   "\\|")
  "Regexp for possible error strings of SMB servers.
Used instead of analyzing error codes of commands.")

(defvar tramp-smb-share nil
  "Holds the share name for the current buffer.
This variable is local to each buffer.")
(make-variable-buffer-local 'tramp-smb-share)

(defvar tramp-smb-share-cache nil
  "Caches the share names accessible to host related to the current buffer.
This variable is local to each buffer.")
(make-variable-buffer-local 'tramp-smb-share-cache)

116 117 118
(defvar tramp-smb-inodes nil
  "Keeps virtual inodes numbers for SMB files.")

119 120 121 122 123 124 125 126 127 128
;; New handlers should be added here.
(defconst tramp-smb-file-name-handler-alist
  '(
    ;; `access-file' performed by default handler
    (add-name-to-file . tramp-smb-handle-copy-file) ;; we're on Windows, honey.
    ;; `byte-compiler-base-file-name' performed by default handler
    (copy-file . tramp-smb-handle-copy-file)
    (delete-directory . tramp-smb-handle-delete-directory)
    (delete-file . tramp-smb-handle-delete-file)
    ;; `diff-latest-backup-file' performed by default handler
129
    (directory-file-name . tramp-handle-directory-file-name)
130 131 132 133 134 135 136 137 138 139 140 141
    (directory-files . tramp-smb-handle-directory-files)
    (directory-files-and-attributes . tramp-smb-handle-directory-files-and-attributes)
    (dired-call-process . tramp-smb-not-handled)
    (dired-compress-file . tramp-smb-not-handled)
    ;; `dired-uncache' performed by default handler
    ;; `expand-file-name' not necessary because we cannot expand "~/"
    (file-accessible-directory-p . tramp-smb-handle-file-directory-p)
    (file-attributes . tramp-smb-handle-file-attributes)
    (file-directory-p .  tramp-smb-handle-file-directory-p)
    (file-executable-p . tramp-smb-handle-file-exists-p)
    (file-exists-p . tramp-smb-handle-file-exists-p)
    (file-local-copy . tramp-smb-handle-file-local-copy)
142
    (file-remote-p . tramp-handle-file-remote-p)
143 144 145 146 147 148 149 150 151 152 153 154 155 156
    (file-modes . tramp-handle-file-modes)
    (file-name-all-completions . tramp-smb-handle-file-name-all-completions)
    ;; `file-name-as-directory' performed by default handler
    (file-name-completion . tramp-handle-file-name-completion)
    (file-name-directory . tramp-handle-file-name-directory)
    (file-name-nondirectory . tramp-handle-file-name-nondirectory)
    ;; `file-name-sans-versions' performed by default handler
    (file-newer-than-file-p . tramp-smb-handle-file-newer-than-file-p)
    (file-ownership-preserved-p . tramp-smb-not-handled)
    (file-readable-p . tramp-smb-handle-file-exists-p)
    (file-regular-p . tramp-handle-file-regular-p)
    (file-symlink-p . tramp-smb-not-handled)
    ;; `file-truename' performed by default handler
    (file-writable-p . tramp-smb-handle-file-writable-p)
157
    (find-backup-file-name . tramp-handle-find-backup-file-name)
158 159 160 161 162 163 164 165 166 167 168 169
    ;; `find-file-noselect' performed by default handler
    ;; `get-file-buffer' performed by default handler
    (insert-directory . tramp-smb-handle-insert-directory)
    (insert-file-contents . tramp-handle-insert-file-contents)
    (load . tramp-handle-load)
    (make-directory . tramp-smb-handle-make-directory)
    (make-directory-internal . tramp-smb-handle-make-directory-internal)
    (make-symbolic-link . tramp-smb-not-handled)
    (rename-file . tramp-smb-handle-rename-file)
    (set-file-modes . tramp-smb-not-handled)
    (set-visited-file-modtime . tramp-smb-not-handled)
    (shell-command . tramp-smb-not-handled)
Michael Albinus's avatar
Michael Albinus committed
170
    (substitute-in-file-name . tramp-smb-handle-substitute-in-file-name)
171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232
    (unhandled-file-name-directory . tramp-handle-unhandled-file-name-directory)
    (vc-registered . tramp-smb-not-handled)
    (verify-visited-file-modtime . tramp-smb-not-handled)
    (write-region . tramp-smb-handle-write-region)
)
  "Alist of handler functions for Tramp SMB method.
Operations not mentioned here will be handled by the default Emacs primitives.")

(defun tramp-smb-file-name-p (filename)
  "Check if it's a filename for SMB servers."
  (let ((v (tramp-dissect-file-name filename)))
    (string=
     (tramp-find-method
      (tramp-file-name-multi-method v)
      (tramp-file-name-method v)
      (tramp-file-name-user v)
      (tramp-file-name-host v))
     tramp-smb-method)))

(defun tramp-smb-file-name-handler (operation &rest args)
  "Invoke the SMB related OPERATION.
First arg specifies the OPERATION, second arg is a list of arguments to
pass to the OPERATION."
  (let ((fn (assoc operation tramp-smb-file-name-handler-alist)))
    (if fn
	(if (eq (cdr fn) 'tramp-smb-not-handled)
	    (apply (cdr fn) operation args)
	  (save-match-data (apply (cdr fn) args)))
      (tramp-run-real-handler operation args))))

(add-to-list 'tramp-foreign-file-name-handler-alist
	     (cons 'tramp-smb-file-name-p 'tramp-smb-file-name-handler))


;; File name primitives

(defun tramp-smb-not-handled (operation &rest args)
  "Default handler for all functions which are disrecarded."
  (tramp-message 10 "Won't be handled: %s %s" operation args)
  nil)

(defun tramp-smb-handle-copy-file
  (filename newname &optional ok-if-already-exists keep-date)
  "Like `copy-file' for tramp files.
KEEP-DATE is not handled in case NEWNAME resides on an SMB server."
  (setq filename (expand-file-name filename)
	newname (expand-file-name newname))

  (let ((tmpfile (file-local-copy filename)))

    (if tmpfile
	;; remote filename
	(rename-file tmpfile newname ok-if-already-exists)

      ;; remote newname
      (when (file-directory-p newname)
	(setq newname (expand-file-name
		       (file-name-nondirectory filename) newname)))
      (when (and (not ok-if-already-exists)
		 (file-exists-p newname))
	(error "copy-file: file %s already exists" newname))

Michael Albinus's avatar
Michael Albinus committed
233
      (with-parsed-tramp-file-name newname nil
234
	(save-excursion
Kai Großjohann's avatar
Kai Großjohann committed
235 236
	  (let ((share (tramp-smb-get-share localname))
		(file (tramp-smb-get-localname localname t)))
237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252
	    (unless share
	      (error "Target `%s' must contain a share name" filename))
	    (tramp-smb-maybe-open-connection user host share)
	    (tramp-message-for-buffer
	     nil tramp-smb-method user host
	     5 "Copying file %s to file %s..." filename newname)
	    (if (tramp-smb-send-command
		 user host (format "put %s \"%s\"" filename file))
		(tramp-message-for-buffer
		 nil tramp-smb-method user host
		 5 "Copying file %s to file %s...done" filename newname)
	      (error "Cannot copy `%s'" filename))))))))

(defun tramp-smb-handle-delete-directory (directory)
  "Like `delete-directory' for tramp files."
  (setq directory (directory-file-name (expand-file-name directory)))
Michael Albinus's avatar
Michael Albinus committed
253 254 255 256 257 258 259 260 261 262 263 264 265
  (when (file-exists-p directory)
    (with-parsed-tramp-file-name directory nil
      (save-excursion
	(let ((share (tramp-smb-get-share localname))
	      (dir (tramp-smb-get-localname (file-name-directory localname) t))
	      (file (file-name-nondirectory localname)))
	  (tramp-smb-maybe-open-connection user host share)
	  (if (and
	       (tramp-smb-send-command user host (format "cd \"%s\"" dir))
	       (tramp-smb-send-command user host (format "rmdir \"%s\"" file)))
	      ;; Go Home
	      (tramp-smb-send-command user host (format "cd \\"))
	    ;; Error
266
	    (tramp-smb-send-command user host (format "cd \\"))
Michael Albinus's avatar
Michael Albinus committed
267
	    (error "Cannot delete directory `%s'" directory)))))))
268 269 270 271

(defun tramp-smb-handle-delete-file (filename)
  "Like `delete-file' for tramp files."
  (setq filename (expand-file-name filename))
Michael Albinus's avatar
Michael Albinus committed
272 273 274 275 276 277 278 279 280 281 282 283 284
  (when (file-exists-p filename)
    (with-parsed-tramp-file-name filename nil
      (save-excursion
	(let ((share (tramp-smb-get-share localname))
	      (dir (tramp-smb-get-localname (file-name-directory localname) t))
	      (file (file-name-nondirectory localname)))
	  (tramp-smb-maybe-open-connection user host share)
	  (if (and
	       (tramp-smb-send-command user host (format "cd \"%s\"" dir))
	       (tramp-smb-send-command user host (format "rm \"%s\"" file)))
	      ;; Go Home
	      (tramp-smb-send-command user host (format "cd \\"))
	    ;; Error
285
	    (tramp-smb-send-command user host (format "cd \\"))
Michael Albinus's avatar
Michael Albinus committed
286
	    (error "Cannot delete file `%s'" filename)))))))
287 288 289 290 291

(defun tramp-smb-handle-directory-files
  (directory &optional full match nosort)
  "Like `directory-files' for tramp files."
  (setq directory (directory-file-name (expand-file-name directory)))
Michael Albinus's avatar
Michael Albinus committed
292
  (with-parsed-tramp-file-name directory nil
293
    (save-excursion
Kai Großjohann's avatar
Kai Großjohann committed
294 295
      (let* ((share (tramp-smb-get-share localname))
	     (file (tramp-smb-get-localname localname nil))
296 297 298 299 300 301 302 303 304
	     (entries (tramp-smb-get-file-entries user host share file)))
	;; Just the file names are needed
	(setq entries (mapcar 'car entries))
	;; Discriminate with regexp
	(when match
	  (setq entries
		(delete nil
			(mapcar (lambda (x) (when (string-match match x) x))
				entries))))
Kai Großjohann's avatar
Kai Großjohann committed
305
	;; Make absolute localnames if necessary
306 307 308 309 310 311 312 313 314 315 316
	(when full
	  (setq entries
		(mapcar (lambda (x)
			  (concat (file-name-as-directory directory) x))
			entries)))
	;; Sort them if necessary
	(unless nosort (setq entries (sort entries 'string-lessp)))
	;; That's it
	entries))))

(defun tramp-smb-handle-directory-files-and-attributes
317
  (directory &optional full match nosort id-format)
318 319 320
  "Like `directory-files-and-attributes' for tramp files."
  (mapcar
   (lambda (x)
321
     ;; We cannot call `file-attributes' for backward compatibility reasons.
Michael Albinus's avatar
Michael Albinus committed
322
     ;; Its optional parameter ID-FORMAT is introduced with Emacs 22.
323 324
     (cons x (tramp-smb-handle-file-attributes
	(if full x (concat (file-name-as-directory directory) x)) id-format)))
325
   (directory-files directory full match nosort)))
326

327 328
(defun tramp-smb-handle-file-attributes (filename &optional id-format)
  "Like `file-attributes' for tramp files."
Michael Albinus's avatar
Michael Albinus committed
329
  (with-parsed-tramp-file-name filename nil
330
    (save-excursion
Kai Großjohann's avatar
Kai Großjohann committed
331 332
      (let* ((share (tramp-smb-get-share localname))
	     (file (tramp-smb-get-localname localname nil))
333 334
	     (entries (tramp-smb-get-file-entries user host share file))
	     (entry (and entries
335
			 (assoc (file-name-nondirectory file) entries)))
336 337
	     (uid (if (and id-format (equal id-format 'string)) "nobody" -1))
	     (gid (if (and id-format (equal id-format 'string)) "nogroup" -1))
338 339 340
	     (inode (tramp-smb-get-inode share file))
	     (device (tramp-get-device nil tramp-smb-method user host)))

341 342 343 344 345
	; check result
	(when entry
	  (list (and (string-match "d" (nth 1 entry))
		     t)         ;0 file type
		-1		;1 link count
346 347
		uid		;2 uid
		gid		;3 gid
348
		'(0 0)		;4 atime
349
		(nth 3 entry)	;5 mtime
350
		'(0 0)		;6 ctime
351 352 353
		(nth 2 entry)   ;7 size
		(nth 1 entry)   ;8 mode
		nil		;9 gid weird
354 355
		inode		;10 inode number
		device))))))	;11 file system number
356 357 358

(defun tramp-smb-handle-file-directory-p (filename)
  "Like `file-directory-p' for tramp files."
Michael Albinus's avatar
Michael Albinus committed
359
  (with-parsed-tramp-file-name filename nil
360
    (save-excursion
Kai Großjohann's avatar
Kai Großjohann committed
361 362
      (let* ((share (tramp-smb-get-share localname))
	     (file (tramp-smb-get-localname localname nil))
363 364 365 366 367 368 369 370 371
	     (entries (tramp-smb-get-file-entries user host share file))
	     (entry (and entries
			 (assoc (file-name-nondirectory file) entries))))
	(and entry
	     (string-match "d" (nth 1 entry))
	     t)))))

(defun tramp-smb-handle-file-exists-p (filename)
  "Like `file-exists-p' for tramp files."
Michael Albinus's avatar
Michael Albinus committed
372
  (with-parsed-tramp-file-name filename nil
373
    (save-excursion
Kai Großjohann's avatar
Kai Großjohann committed
374 375
      (let* ((share (tramp-smb-get-share localname))
	     (file (tramp-smb-get-localname localname nil))
376 377 378 379 380 381 382 383 384
	     (entries (tramp-smb-get-file-entries user host share file)))
	(and entries
	     (member (file-name-nondirectory file) (mapcar 'car entries))
	     t)))))

(defun tramp-smb-handle-file-local-copy (filename)
  "Like `file-local-copy' for tramp files."
  (with-parsed-tramp-file-name filename nil
    (save-excursion
Kai Großjohann's avatar
Kai Großjohann committed
385 386
      (let ((share (tramp-smb-get-share localname))
	    (file (tramp-smb-get-localname localname t))
387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405
	    (tmpfil (tramp-make-temp-file)))
	(unless (file-exists-p filename)
	  (error "Cannot make local copy of non-existing file `%s'" filename))
	(tramp-message-for-buffer
	 nil tramp-smb-method user host
	 5 "Fetching %s to tmp file %s..." filename tmpfil)
	(tramp-smb-maybe-open-connection user host share)
	(if (tramp-smb-send-command
	     user host (format "get \"%s\" %s" file tmpfil))
	    (tramp-message-for-buffer
	     nil tramp-smb-method user host
	     5 "Fetching %s to tmp file %s...done" filename tmpfil)
	  (error "Cannot make local copy of file `%s'" filename))
	tmpfil))))

;; This function should return "foo/" for directories and "bar" for
;; files.
(defun tramp-smb-handle-file-name-all-completions (filename directory)
  "Like `file-name-all-completions' for tramp files."
Michael Albinus's avatar
Michael Albinus committed
406
  (with-parsed-tramp-file-name directory nil
407 408
    (save-match-data
      (save-excursion
Kai Großjohann's avatar
Kai Großjohann committed
409 410
	(let* ((share (tramp-smb-get-share localname))
	       (file (tramp-smb-get-localname localname nil))
411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432
	       (entries (tramp-smb-get-file-entries user host share file)))

	  (all-completions
	   filename
	   (mapcar
	    (lambda (x)
	      (list
	       (if (string-match "d" (nth 1 x))
		   (file-name-as-directory (nth 0 x))
		 (nth 0 x))))
	    entries)))))))

(defun tramp-smb-handle-file-newer-than-file-p (file1 file2)
  "Like `file-newer-than-file-p' for tramp files."
  (cond
   ((not (file-exists-p file1)) nil)
   ((not (file-exists-p file2)) t)
   (t (tramp-smb-time-less-p (file-attributes file2)
			     (file-attributes file1)))))

(defun tramp-smb-handle-file-writable-p (filename)
  "Like `file-writable-p' for tramp files."
433 434 435 436
  (if (not (file-exists-p filename))
      (let ((dir (file-name-directory filename)))
	(and (file-exists-p dir)
	     (file-writable-p dir)))
Michael Albinus's avatar
Michael Albinus committed
437
    (with-parsed-tramp-file-name filename nil
438 439 440 441 442 443 444 445 446
      (save-excursion
	(let* ((share (tramp-smb-get-share localname))
	       (file (tramp-smb-get-localname localname nil))
	       (entries (tramp-smb-get-file-entries user host share file))
	       (entry (and entries
			   (assoc (file-name-nondirectory file) entries))))
	  (and share entry
	       (string-match "w" (nth 1 entry))
	       t))))))
447 448 449 450 451 452 453 454 455 456

(defun tramp-smb-handle-insert-directory
  (filename switches &optional wildcard full-directory-p)
  "Like `insert-directory' for tramp files.
WILDCARD and FULL-DIRECTORY-P are not handled."
  (setq filename (expand-file-name filename))
  (when (file-directory-p filename)
    ;; This check is a little bit strange, but in `dired-add-entry'
    ;; this function is called with a non-directory ...
    (setq filename (file-name-as-directory filename)))
Michael Albinus's avatar
Michael Albinus committed
457
  (with-parsed-tramp-file-name filename nil
458
    (save-match-data
Kai Großjohann's avatar
Kai Großjohann committed
459 460
      (let* ((share (tramp-smb-get-share localname))
	     (file (tramp-smb-get-localname localname nil))
461 462 463
	     (entries (tramp-smb-get-file-entries user host share file)))

	;; Delete dummy "" entry, useless entries
464
	(setq entries
465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506
	      (if (file-directory-p filename)
		  (delq (assoc "" entries) entries)
		;; We just need the only and only entry FILENAME.
		(list (assoc (file-name-nondirectory filename) entries))))

	;; Sort entries
	(setq entries
	      (sort
	       entries
	       (lambda (x y)
		 (if (string-match "t" switches)
		     ; sort by date
		     (tramp-smb-time-less-p (nth 3 y) (nth 3 x))
		   ; sort by name
		   (string-lessp (nth 0 x) (nth 0 y))))))

	;; Print entries
	(mapcar
	 (lambda (x)
	   (insert
	    (format
	     "%10s %3d %-8s %-8s %8s %s %s\n"
	     (nth 1 x) ; mode
	     1 "nobody" "nogroup"
	     (nth 2 x) ; size
	     (format-time-string
	      (if (tramp-smb-time-less-p
		   (tramp-smb-time-subtract (current-time) (nth 3 x))
		   tramp-smb-half-a-year)
		  "%b %e %R"
		"%b %e  %Y")
	      (nth 3 x)) ; date
	     (nth 0 x))) ; file name
	   (forward-line)
	   (beginning-of-line))
	 entries)))))

(defun tramp-smb-handle-make-directory (dir &optional parents)
  "Like `make-directory' for tramp files."
  (setq dir (directory-file-name (expand-file-name dir)))
  (unless (file-name-absolute-p dir)
    (setq dir (concat default-directory dir)))
Michael Albinus's avatar
Michael Albinus committed
507
  (with-parsed-tramp-file-name dir nil
508
    (save-match-data
Kai Großjohann's avatar
Kai Großjohann committed
509
      (let* ((share (tramp-smb-get-share localname))
510 511 512 513 514 515
	     (ldir (file-name-directory dir)))
	;; Make missing directory parts
	(when (and parents share (not (file-directory-p ldir)))
	  (make-directory ldir parents))
	;; Just do it
	(when (file-directory-p ldir)
516
	  (make-directory-internal dir))
517 518 519 520 521 522 523
	(unless (file-directory-p dir)
	  (error "Couldn't make directory %s" dir))))))

(defun tramp-smb-handle-make-directory-internal (directory)
  "Like `make-directory-internal' for tramp files."
  (setq directory (directory-file-name (expand-file-name directory)))
  (unless (file-name-absolute-p directory)
524
    (setq directory (concat default-directory directory)))
Michael Albinus's avatar
Michael Albinus committed
525
  (with-parsed-tramp-file-name directory nil
526
    (save-match-data
Kai Großjohann's avatar
Kai Großjohann committed
527 528
      (let* ((share (tramp-smb-get-share localname))
	     (file (tramp-smb-get-localname localname nil)))
529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554
	(when (file-directory-p (file-name-directory directory))
	  (tramp-smb-maybe-open-connection user host share)
	  (tramp-smb-send-command user host (format "mkdir \"%s\"" file)))
	(unless (file-directory-p directory)
	  (error "Couldn't make directory %s" directory))))))

(defun tramp-smb-handle-rename-file
  (filename newname &optional ok-if-already-exists)
  "Like `rename-file' for tramp files."
  (setq filename (expand-file-name filename)
	newname (expand-file-name newname))

  (let ((tmpfile (file-local-copy filename)))

    (if tmpfile
	;; remote filename
	(rename-file tmpfile newname ok-if-already-exists)

      ;; remote newname
      (when (file-directory-p newname)
	(setq newname (expand-file-name
		      (file-name-nondirectory filename) newname)))
      (when (and (not ok-if-already-exists)
		 (file-exists-p newname))
	  (error "rename-file: file %s already exists" newname))

Michael Albinus's avatar
Michael Albinus committed
555
      (with-parsed-tramp-file-name newname nil
556
	(save-excursion
Kai Großjohann's avatar
Kai Großjohann committed
557 558
	  (let ((share (tramp-smb-get-share localname))
		(file (tramp-smb-get-localname localname t)))
559 560 561 562 563 564 565 566 567 568 569 570 571
	    (tramp-smb-maybe-open-connection user host share)
	    (tramp-message-for-buffer
	     nil tramp-smb-method user host
	     5 "Copying file %s to file %s..." filename newname)
	    (if (tramp-smb-send-command
		 user host (format "put %s \"%s\"" filename file))
		(tramp-message-for-buffer
		 nil tramp-smb-method user host
		 5 "Copying file %s to file %s...done" filename newname)
	      (error "Cannot rename `%s'" filename)))))))

  (delete-file filename))

Michael Albinus's avatar
Michael Albinus committed
572 573 574 575 576 577 578
(defun tramp-smb-handle-substitute-in-file-name (filename)
  "Like `handle-substitute-in-file-name' for tramp files.
Catches errors for shares like \"C$/\", which are common in Microsoft Windows."
  (condition-case nil
      (tramp-run-real-handler 'substitute-in-file-name (list filename))
    (error filename)))

579 580 581 582 583 584 585 586 587 588 589 590
(defun tramp-smb-handle-write-region
  (start end filename &optional append visit lockname confirm)
  "Like `write-region' for tramp files."
  (unless (eq append nil)
    (error "Cannot append to file using tramp (`%s')" filename))
  (setq filename (expand-file-name filename))
  ;; XEmacs takes a coding system as the seventh argument, not `confirm'
  (when (and (not (featurep 'xemacs))
	     confirm (file-exists-p filename))
    (unless (y-or-n-p (format "File %s exists; overwrite anyway? "
                              filename))
      (error "File not overwritten")))
Michael Albinus's avatar
Michael Albinus committed
591
  (with-parsed-tramp-file-name filename nil
592
    (save-excursion
Kai Großjohann's avatar
Kai Großjohann committed
593 594
      (let ((share (tramp-smb-get-share localname))
	    (file (tramp-smb-get-localname localname t))
595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623
	    (curbuf (current-buffer))
	    tmpfil)
	;; Write region into a tmp file.
	(setq tmpfil (tramp-make-temp-file))
	;; We say `no-message' here because we don't want the visited file
	;; modtime data to be clobbered from the temp file.  We call
	;; `set-visited-file-modtime' ourselves later on.
	(tramp-run-real-handler
	 'write-region
	 (if confirm ; don't pass this arg unless defined for backward compat.
	     (list start end tmpfil append 'no-message lockname confirm)
	   (list start end tmpfil append 'no-message lockname)))

	(tramp-smb-maybe-open-connection user host share)
	(tramp-message-for-buffer
	 nil tramp-smb-method user host
	 5 "Writing tmp file %s to file %s..." tmpfil filename)
	(if (tramp-smb-send-command
	     user host (format "put %s \"%s\"" tmpfil file))
	    (tramp-message-for-buffer
	     nil tramp-smb-method user host
	     5 "Writing tmp file %s to file %s...done" tmpfil filename)
	  (error "Cannot write `%s'" filename))

	(delete-file tmpfil)
	(unless (equal curbuf (current-buffer))
	  (error "Buffer has changed from `%s' to `%s'"
		 curbuf (current-buffer)))
	(when (eq visit t)
Michael Albinus's avatar
Michael Albinus committed
624
	  (set-visited-file-modtime))))))
625 626 627 628


;; Internal file name functions

Kai Großjohann's avatar
Kai Großjohann committed
629 630
(defun tramp-smb-get-share (localname)
  "Returns the share name of LOCALNAME."
631
  (save-match-data
Kai Großjohann's avatar
Kai Großjohann committed
632 633
    (when (string-match "^/?\\([^/]+\\)/" localname)
      (match-string 1 localname))))
634

Kai Großjohann's avatar
Kai Großjohann committed
635 636
(defun tramp-smb-get-localname (localname convert)
  "Returns the file name of LOCALNAME.
637 638
If CONVERT is non-nil exchange \"/\" by \"\\\\\"."
  (save-match-data
Kai Großjohann's avatar
Kai Großjohann committed
639
    (let ((res localname))
640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659

      (setq
       res (if (string-match "^/?[^/]+/\\(.*\\)" res)
	       (if convert
		   (mapconcat
		    (lambda (x) (if (equal x ?/) "\\" (char-to-string x)))
		    (match-string 1 res) "")
		 (match-string 1 res))
	     (if (string-match "^/?\\([^/]+\\)$" res)
		 (match-string 1 res)
	       "")))

      ;; Sometimes we have discarded `substitute-in-file-name'
      (when (string-match "\\(\\$\\$\\)\\(/\\|$\\)" res)
	(setq res (replace-match "$" nil nil res 1)))

      res)))

;; Share names of a host are cached. It is very unlikely that the
;; shares do change during connection.
Kai Großjohann's avatar
Kai Großjohann committed
660 661
(defun tramp-smb-get-file-entries (user host share localname)
  "Read entries which match LOCALNAME.
662
Either the shares are listed, or the `dir' command is executed.
Kai Großjohann's avatar
Kai Großjohann committed
663 664
Only entries matching the localname are returned.
Result is a list of (LOCALNAME MODE SIZE MONTH DAY TIME YEAR)."
665 666
  (save-excursion
    (save-match-data
Kai Großjohann's avatar
Kai Großjohann committed
667 668 669
      (let ((base (or (and (> (length localname) 0)
			   (string-match "\\([^/]+\\)$" localname)
			   (regexp-quote (match-string 1 localname)))
670 671 672 673 674 675 676 677 678 679 680 681
		      ""))
	    res entry)
	(set-buffer (tramp-get-buffer nil tramp-smb-method user host))
	(if (and (not share) tramp-smb-share-cache)
	    ;; Return cached shares
	    (setq res tramp-smb-share-cache)
	  ;; Read entries
	  (tramp-smb-maybe-open-connection user host share)
	  (when share
	    (tramp-smb-send-command
	     user host
	     (format "dir %s"
Kai Großjohann's avatar
Kai Großjohann committed
682
		     (if (zerop (length localname)) "" (concat "\"" localname "*\"")))))
683 684 685 686 687 688 689 690 691 692 693 694
	  (goto-char (point-min))
	  ;; Loop the listing
	  (unless (re-search-forward tramp-smb-errors nil t)
	    (while (not (eobp))
	      (setq entry (tramp-smb-read-file-entry share))
	      (forward-line)
	      (when entry (add-to-list 'res entry))))
	  (unless share
	    ;; Cache share entries
	    (setq tramp-smb-share-cache res)))

	;; Add directory itself
695 696 697 698 699
	(add-to-list 'res '("" "drwxrwxrwx" 0 (0 0)))

	;; There's a very strange error (debugged with XEmacs 21.4.14)
	;; If there's no short delay, it returns nil.  No idea about
	(when (featurep 'xemacs) (sleep-for 0.01))
700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719

	;; Check for matching entries
	(delq nil (mapcar
		   (lambda (x) (and (string-match base (nth 0 x)) x))
		   res))))))

;; Return either a share name (if SHARE is nil), or a file name
;;
;; If shares are listed, the following format is expected
;;
;; \s-\{8,8}                              - leading spaces
;; \S-\(.*\S-\)\s-*                       - share name, 14 char
;; \s-                                    - space delimeter
;; \S-+\s-*                               - type, 8 char, "Disk    " expected
;; \(\s-\{2,2\}.*\)?                      - space delimeter, comment
;;
;; Entries provided by smbclient DIR aren't fully regular.
;; They should have the format
;;
;; \s-\{2,2}                              - leading spaces
720 721
;; \S-\(.*\S-\)\s-*                       - file name, 30 chars, left bound
;; \s-+[ADHRSV]*                          - permissions, 7 chars, right bound
722
;; \s-                                    - space delimeter
723
;; \s-+[0-9]+                             - size, 8 chars, right bound
724 725 726
;; \s-\{2,2\}                             - space delimeter
;; \w\{3,3\}                              - weekday
;; \s-                                    - space delimeter
727 728
;; \w\{3,3\}                              - month
;; \s-                                    - space delimeter
729 730 731 732 733 734
;; [ 19][0-9]                             - day
;; \s-                                    - space delimeter
;; [0-9]\{2,2\}:[0-9]\{2,2\}:[0-9]\{2,2\} - time
;; \s-                                    - space delimeter
;; [0-9]\{4,4\}                           - year
;;
735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751
;; samba/src/client.c (http://samba.org/doxygen/samba/client_8c-source.html)
;; has function display_finfo:
;;
;;   d_printf("  %-30s%7.7s %8.0f  %s",
;;            finfo->name,
;;            attrib_string(finfo->mode),
;;            (double)finfo->size,
;;            asctime(LocalTime(&t)));
;;
;; in Samba 1.9, there's the following code:
;;
;;   DEBUG(0,("  %-30s%7.7s%10d  %s",
;;  	   CNV_LANG(finfo->name),
;;	   attrib_string(finfo->mode),
;;	   finfo->size,
;;	   asctime(LocalTime(&t))));
;;
752 753 754 755 756 757 758 759 760 761 762
;; Problems:
;; * Modern regexp constructs, like spy groups and counted repetitions, aren't
;;   available in older Emacsen.
;; * The length of constructs (file name, size) might exceed the default.
;; * File names might contain spaces.
;; * Permissions might be empty.
;;
;; So we try to analyze backwards.
(defun tramp-smb-read-file-entry (share)
  "Parse entry in SMB output buffer.
If SHARE is result, entries are of type dir. Otherwise, shares are listed.
Kai Großjohann's avatar
Kai Großjohann committed
763
Result is the list (LOCALNAME MODE SIZE MTIME)."
764
  (let ((line (buffer-substring (point) (tramp-point-at-eol)))
Kai Großjohann's avatar
Kai Großjohann committed
765
	localname mode size month day hour min sec year mtime)
766 767 768 769 770

    (if (not share)

	; Read share entries
	(when (string-match "^\\s-+\\(\\S-+\\)\\s-+Disk" line)
Kai Großjohann's avatar
Kai Großjohann committed
771
	  (setq localname (match-string 1 line)
772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810
		mode "dr-xr-xr-x"
		size 0))

      ; Real listing
      (block nil

	;; year
	(if (string-match "\\([0-9]+\\)$" line)
	    (setq year (string-to-number (match-string 1 line))
		  line (substring line 0 -5))
	  (return))

	;; time
	(if (string-match "\\([0-9]+\\):\\([0-9]+\\):\\([0-9]+\\)$" line)
	    (setq hour (string-to-number (match-string 1 line))
		  min  (string-to-number (match-string 2 line))
		  sec  (string-to-number (match-string 3 line))
		  line (substring line 0 -9))
	  (return))

	;; day
	(if (string-match "\\([0-9]+\\)$" line)
	    (setq day  (string-to-number (match-string 1 line))
		  line (substring line 0 -3))
	  (return))

	;; month
	(if (string-match "\\(\\w+\\)$" line)
	    (setq month (match-string 1 line)
		  line  (substring line 0 -4))
	  (return))

	;; weekday
	(if (string-match "\\(\\w+\\)$" line)
	    (setq line (substring line 0 -5))
	  (return))

	;; size
	(if (string-match "\\([0-9]+\\)$" line)
811 812 813 814 815
	    (let ((length (- (max 10 (1+ (length (match-string 1 line)))))))
	      (setq size (string-to-number (match-string 1 line)))
	      (when (string-match "\\([ADHRSV]+\\)" (substring line length))
		(setq length (+ length (match-end 0))))
	      (setq line (substring line 0 length)))
816 817
	  (return))

818 819
	;; mode: ARCH, DIR, HIDDEN, RONLY, SYSTEM, VOLID
	(if (string-match "\\([ADHRSV]+\\)?$" line)
820
	    (setq
821
	     mode (or (match-string 1 line) "")
822 823 824 825 826 827
	     mode (save-match-data (format
		    "%s%s"
		    (if (string-match "D" mode) "d" "-")
		    (mapconcat
		     (lambda (x) "") "    "
		     (concat "r" (if (string-match "R" mode) "-" "w") "x"))))
828
	     line (substring line 0 -7))
829 830
	  (return))

Kai Großjohann's avatar
Kai Großjohann committed
831
	;; localname
832
	(if (string-match "^\\s-+\\(\\S-\\(.*\\S-\\)?\\)\\s-*$" line)
Kai Großjohann's avatar
Kai Großjohann committed
833
	    (setq localname (match-string 1 line))
834 835
	  (return))))

Kai Großjohann's avatar
Kai Großjohann committed
836
    (when (and localname mode size)
837 838 839 840 841 842 843
      (setq mtime
	    (if (and sec min hour day month year)
		(encode-time
		 sec min hour day
		 (cdr (assoc (downcase month) tramp-smb-parse-time-months))
		 year)
	      '(0 0)))
Kai Großjohann's avatar
Kai Großjohann committed
844
      (list localname mode size mtime))))
845

846 847 848 849 850 851 852 853 854 855 856 857 858 859
;; Inodes don't exist for SMB files.  Therefore we must generate virtual ones.
;; Used in `find-buffer-visiting'.
;; The method applied might be not so efficient (Ange-FTP uses hashes). But
;; performance isn't the major issue given that file transfer will take time.

(defun tramp-smb-get-inode (share file)
  "Returns the virtual inode number.
If it doesn't exist, generate a new one."
  (let ((string (concat share "/" (directory-file-name file))))
    (unless (assoc string tramp-smb-inodes)
      (add-to-list 'tramp-smb-inodes
		   (list string (length tramp-smb-inodes))))
    (nth 1 (assoc string tramp-smb-inodes))))

860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876

;; Connection functions

(defun tramp-smb-send-command (user host command)
  "Send the COMMAND to USER at HOST (logged into an SMB session).
Erases temporary buffer before sending the command.  Returns nil if
there has been an error message from smbclient."
  (save-excursion
    (set-buffer (tramp-get-buffer nil tramp-smb-method user host))
    (erase-buffer)
    (tramp-send-command nil tramp-smb-method user host command nil t)
    (tramp-smb-wait-for-output user host)))

(defun tramp-smb-maybe-open-connection (user host share)
  "Maybe open a connection to HOST, logging in as USER, using `tramp-smb-program'.
Does not do anything if a connection is already open, but re-opens the
connection if a previous connection has died for some reason."
877 878
  (let ((process-connection-type tramp-process-connection-type)
	(p (get-buffer-process
879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907
	    (tramp-get-buffer nil tramp-smb-method user host))))
    (save-excursion
      (set-buffer (tramp-get-buffer nil tramp-smb-method user host))
      ;; Check whether it is still the same share
      (unless (and p (processp p) (string-equal tramp-smb-share share))
	(when (and p (processp p))
	  (delete-process p)
	  (setq p nil)))
      ;; If too much time has passed since last command was sent, look
      ;; whether process is still alive.  If it isn't, kill it.
      (when (and tramp-last-cmd-time
		 (> (tramp-time-diff (current-time) tramp-last-cmd-time) 60)
		 p (processp p) (memq (process-status p) '(run open)))
	(unless (and p (processp p) (memq (process-status p) '(run open)))
	  (delete-process p)
	  (setq p nil))))
    (unless (and p (processp p) (memq (process-status p) '(run open)))
      (when (and p (processp p))
        (delete-process p))
      (tramp-smb-open-connection user host share))))

(defun tramp-smb-open-connection (user host share)
  "Open a connection using `tramp-smb-program'.
This starts the command `smbclient //HOST/SHARE -U USER', then waits
for a remote password prompt.  It queries the user for the password,
then sends the password to the remote host.

Domain names in USER and port numbers in HOST are acknowledged."

Michael Albinus's avatar
Michael Albinus committed
908 909 910 911
  (when (and (fboundp 'executable-find)
	     (not (funcall 'executable-find tramp-smb-program)))
    (error "Cannot find command %s in %s" tramp-smb-program exec-path))

912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938
  (save-match-data
    (let* ((buffer (tramp-get-buffer nil tramp-smb-method user host))
	   (real-user user)
	   (real-host host)
	   domain port args)

      ; Check for domain ("user%domain") and port ("host#port")
      (when (and user (string-match "\\(.+\\)%\\(.+\\)" user))
	(setq real-user (or (match-string 1 user) user)
	      domain (match-string 2 user)))

      (when (and host (string-match "\\(.+\\)#\\(.+\\)" host))
	(setq real-host (or (match-string 1 host) host)
	      port (match-string 2 host)))

      (if share
	  (setq args (list (concat "//" real-host "/" share)))
	(setq args (list "-L" real-host )))

      (if real-user
	  (setq args (append args (list "-U" real-user)))
	(setq args (append args (list "-N"))))

      (when domain (setq args (append args (list "-W" domain))))
      (when port   (setq args (append args (list "-p" port))))

      ; OK, let's go
939
      (tramp-pre-connection nil tramp-smb-method user host tramp-chunksize)
940 941 942 943 944 945 946 947 948 949 950 951 952 953
      (tramp-message 7 "Opening connection for //%s@%s/%s..."
		     user host (or share ""))

      (let* ((default-directory (tramp-temporary-file-directory))
	     ;; If we omit the conditional here, then we would use
	     ;; `undecided-dos' in some cases.  With the conditional,
	     ;; we use nil in these cases.  Which one is right?
	     (coding-system-for-read (unless (and (not (featurep 'xemacs))
						  (> emacs-major-version 20))
				       tramp-dos-coding-system))
	     (p (apply #'start-process (buffer-name buffer) buffer
		       tramp-smb-program args)))

	(tramp-message 9 "Started process %s" (process-command p))
954
	(tramp-set-process-query-on-exit-flag p nil)
955
	(set-buffer buffer)
956
	(setq tramp-smb-share share)
957 958 959 960 961

        ; send password
	(when real-user
	  (let ((pw-prompt "Password:"))
	    (tramp-message 9 "Sending password")
Kai Großjohann's avatar
Kai Großjohann committed
962
	    (tramp-enter-password p pw-prompt user host)))
963 964

	(unless (tramp-smb-wait-for-output user host)
965
	  (tramp-clear-passwd user host)
966 967 968 969 970 971 972
	  (error "Cannot open connection //%s@%s/%s"
		 user host (or share "")))))))

;; We don't use timeouts.  If needed, the caller shall wrap around.
(defun tramp-smb-wait-for-output (user host)
  "Wait for output from smbclient command.
Returns nil if an error message has appeared."
973 974 975 976 977 978 979 980 981
  (let ((proc (get-buffer-process (current-buffer)))
	(found (progn (goto-char (point-min))
		      (re-search-forward tramp-smb-prompt nil t)))
	(err   (progn (goto-char (point-min))
		      (re-search-forward tramp-smb-errors nil t))))

    ;; Algorithm: get waiting output.  See if last line contains
    ;; tramp-smb-prompt sentinel or tramp-smb-errors strings.
    ;; If not, wait a bit and again get waiting output.
Michael Albinus's avatar
Michael Albinus committed
982
    (while (not found)
983 984

      ;; Accept pending output.
Michael Albinus's avatar
Michael Albinus committed
985
      (tramp-accept-process-output proc)
986 987

      ;; Search for prompt.
988
      (goto-char (point-min))
989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002
      (setq found (re-search-forward tramp-smb-prompt nil t))

      ;; Search for errors.
      (goto-char (point-min))
      (setq err (re-search-forward tramp-smb-errors nil t)))

    ;; Add output to debug buffer if appropriate.
    (when tramp-debug-buffer
      (append-to-buffer
       (tramp-get-debug-buffer nil tramp-smb-method user host)
       (point-min) (point-max)))

    ;; Return value is whether no error message has appeared.
    (not err)))
1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054


;; Snarfed code from time-date.el and parse-time.el

(defconst tramp-smb-half-a-year '(241 17024)
"Evaluated by \"(days-to-time 183)\".")

(defconst tramp-smb-parse-time-months '(("jan" . 1) ("feb" . 2) ("mar" . 3)
			    ("apr" . 4) ("may" . 5) ("jun" . 6)
			    ("jul" . 7) ("aug" . 8) ("sep" . 9)
			    ("oct" . 10) ("nov" . 11) ("dec" . 12))
"Alist mapping month names to integers.")

(defun tramp-smb-time-less-p (t1 t2)
  "Say whether time value T1 is less than time value T2."
  (unless t1 (setq t1 '(0 0)))
  (unless t2 (setq t2 '(0 0)))
  (or (< (car t1) (car t2))
      (and (= (car t1) (car t2))
	   (< (nth 1 t1) (nth 1 t2)))))

(defun tramp-smb-time-subtract (t1 t2)
  "Subtract two time values.
Return the difference in the format of a time value."
  (unless t1 (setq t1 '(0 0)))
  (unless t2 (setq t2 '(0 0)))
  (let ((borrow (< (cadr t1) (cadr t2))))
    (list (- (car t1) (car t2) (if borrow 1 0))
	  (- (+ (if borrow 65536 0) (cadr t1)) (cadr t2)))))


(provide 'tramp-smb)

;;; TODO:

;; * Provide a local smb.conf. The default one might not be readable.
;; * Error handling in case password is wrong.
;; * Read password from "~/.netrc".
;; * Return more comprehensive file permission string.  Think whether it is
;;   possible to implement `set-file-modes'.
;; * Handle WILDCARD and FULL-DIRECTORY-P in
;;   `tramp-smb-handle-insert-directory'.
;; * Handle links (FILENAME.LNK).
;; * Maybe local tmp files should have the same extension like the original
;;   files.  Strange behaviour with jka-compr otherwise?
;; * Copy files in dired from SMB to another method doesn't work.
;; * Try to remove the inclusion of dummy "" directory.  Seems to be at
;;   several places, especially in `tramp-smb-handle-insert-directory'.
;; * Provide variables for debug.
;; * (RMS) Use unwind-protect to clean up the state so as to make the state
;;   regular again.

Miles Bader's avatar
Miles Bader committed
1055
;;; arch-tag: fcc9dbec-7503-4d73-b638-3c8aa59575f5
1056
;;; tramp-smb.el ends here