;;; pcmpl-unix.el --- standard UNIX completions
;; Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004,
-;; 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+;; 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; 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 3, or (at your option)
-;; any later version.
+;; the Free Software Foundation, either version 3 of the License, 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
;; 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
-;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
-(provide 'pcmpl-unix)
-
(require 'pcomplete)
;; User Variables:
(defcustom pcmpl-unix-group-file "/etc/group"
- "*If non-nil, a string naming the group file on your system."
- :type 'file
+ "If non-nil, a string naming the group file on your system."
+ :type '(choice file (const nil))
:group 'pcmpl-unix)
(defcustom pcmpl-unix-passwd-file "/etc/passwd"
- "*If non-nil, a string naming the passwd file on your system."
- :type 'file
+ "If non-nil, a string naming the passwd file on your system."
+ :type '(choice file (const nil))
:group 'pcmpl-unix)
(defcustom pcmpl-ssh-known-hosts-file "~/.ssh/known_hosts"
- "The location of the user's SSH `known_hosts' file."
- :type 'file
- :group 'pcmpl-unix)
+ "If non-nil, a string naming your SSH \"known_hosts\" file.
+This allows completion of SSH host names. Note that newer
+versions of ssh hash the hosts by default to prevent
+Island-hopping SSH attacks. This can be disabled, at some risk,
+with the SSH option \"HashKnownHosts no\"."
+ :type '(choice file (const nil))
+ :group 'pcmpl-unix
+ :version "23.1")
;; Functions:
(pcomplete-here* (pcmpl-unix-group-names)))
(while (pcomplete-here (pcomplete-entries))))
+
;; ssh support by Phil Hagelberg.
;; http://www.emacswiki.org/cgi-bin/wiki/pcmpl-ssh.el
-;; This will allow eshell to autocomplete SSH hosts from the list of
-;; known hosts in your ~/.ssh/known_hosts file. Note that newer
-;; versions of ssh hash the hosts by default to prevent Island-hopping
-;; SSH attacks. (https://itso.iu.edu/Hashing_the_OpenSSH_known__hosts_File)
-;; You can disable this by putting the following line in your ~/.ssh/config
-;; file following the "Host *" directive:
-
-;; HashKnownHosts no
-
-;; Note that this will make you vulnerable to the Island-hopping
-;; attack described in the link above if you allow key-based
-;; passwordless logins and your account is compromised.
+(defun pcmpl-ssh-hosts ()
+ "Return a list of hosts found in `pcmpl-ssh-known-hosts-file'."
+ (when (and pcmpl-ssh-known-hosts-file
+ (file-readable-p pcmpl-ssh-known-hosts-file))
+ (with-temp-buffer
+ (insert-file-contents-literally pcmpl-ssh-known-hosts-file)
+ (let (ssh-hosts-list)
+ (while (re-search-forward "^ *\\([-.[:alnum:]]+\\)[, ]" nil t)
+ (add-to-list 'ssh-hosts-list (match-string 1))
+ (while (and (looking-back ",")
+ (re-search-forward "\\([-.[:alnum:]]+\\)[, ]"
+ (line-end-position) t))
+ (add-to-list 'ssh-hosts-list (match-string 1))))
+ ssh-hosts-list))))
;;;###autoload
(defun pcomplete/ssh ()
;;;###autoload
(defun pcomplete/scp ()
"Completion rules for the `scp' command.
-
Includes files as well as host names followed by a colon."
(pcomplete-opt "1246BCpqrvcFiloPS")
(while t (pcomplete-here (append (pcomplete-all-entries)
- (mapcar (lambda (host) (concat host ":")) (pcmpl-ssh-hosts))))))
+ (mapcar (lambda (host)
+ (concat host ":"))
+ (pcmpl-ssh-hosts))))))
-(defun pcmpl-ssh-hosts ()
- "Returns a list of hosts found in the users `known_hosts' file."
- (if (file-readable-p pcmpl-ssh-known-hosts-file)
- (with-temp-buffer
- (insert-file-contents-literally pcmpl-ssh-known-hosts-file)
- (let ((ssh-hosts-list) '())
- (while (not (eobp))
- (let ((hostname (buffer-substring (point) (- (search-forward-regexp "[, ]") 1))))
- (unless (string-match "^|" hostname)
- (add-to-list 'ssh-hosts-list hostname)))
- (forward-line))
- ssh-hosts-list))))
-
-;;; arch-tag: 3f9eb5af-7e0e-449d-b586-381cbbf8fc5c
+(provide 'pcmpl-unix)
+
+;; arch-tag: 3f9eb5af-7e0e-449d-b586-381cbbf8fc5c
;;; pcmpl-unix.el ends here