;;; pcmpl-unix.el --- standard UNIX completions
-;; Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004,
-;; 2005, 2006, 2007 Free Software Foundation, Inc.
+;; Copyright (C) 1999-2016 Free Software Foundation, Inc.
+
+;; Package: pcomplete
;; 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 2, 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"
+ "If non-nil, a string naming your SSH \"known_hosts\" file.
+This allows one method of completion of SSH host names, the other
+being via `pcmpl-ssh-config-file'. 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")
+
+(defcustom pcmpl-ssh-config-file "~/.ssh/config"
+ "If non-nil, a string naming your SSH \"config\" file.
+This allows one method of completion of SSH host names, the other
+being via `pcmpl-ssh-known-hosts-file'."
+ :type '(choice file (const nil))
+ :group 'pcmpl-unix
+ :version "24.1")
+
;; Functions:
;;;###autoload
(defun pcomplete/cd ()
"Completion for `cd'."
- (pcomplete-here (pcomplete-dirs)))
+ (while (pcomplete-here (pcomplete-dirs))))
;;;###autoload
(defalias 'pcomplete/pushd 'pcomplete/cd)
(while (pcomplete-here (funcall pcomplete-command-completion-function))))
(defun pcmpl-unix-read-passwd-file (file)
- "Return an alist correlating gids to group names in FILE."
+ "Return an alist correlating gids to group names in FILE.
+
+If FILE is in hashed format (as described in the OpenSSH
+documentation), this function returns nil."
(let (names)
(when (file-readable-p file)
(with-temp-buffer
(pcomplete-here* (pcmpl-unix-group-names)))
(while (pcomplete-here (pcomplete-entries))))
-;;; arch-tag: 3f9eb5af-7e0e-449d-b586-381cbbf8fc5c
+
+;; ssh support by Phil Hagelberg.
+;; http://www.emacswiki.org/cgi-bin/wiki/pcmpl-ssh.el
+
+(defun pcmpl-ssh-known-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 ((host-re "\\(?:\\([-.[:alnum:]]+\\)\\|\\[\\([-.[:alnum:]]+\\)\\]:[0-9]+\\)[, ]")
+ ssh-hosts-list)
+ (while (re-search-forward (concat "^ *" host-re) nil t)
+ (add-to-list 'ssh-hosts-list (concat (match-string 1)
+ (match-string 2)))
+ (while (and (eq (char-before) ?,)
+ (re-search-forward host-re (line-end-position) t))
+ (add-to-list 'ssh-hosts-list (concat (match-string 1)
+ (match-string 2)))))
+ ssh-hosts-list))))
+
+(defun pcmpl-ssh-config-hosts ()
+ "Return a list of hosts found in `pcmpl-ssh-config-file'."
+ (when (and pcmpl-ssh-config-file
+ (file-readable-p pcmpl-ssh-config-file))
+ (with-temp-buffer
+ (insert-file-contents-literally pcmpl-ssh-config-file)
+ (let (ssh-hosts-list
+ (case-fold-search t))
+ (while (re-search-forward "^ *host\\(name\\)? +\\([-.[:alnum:]]+\\)"
+ nil t)
+ (add-to-list 'ssh-hosts-list (match-string 2)))
+ ssh-hosts-list))))
+
+(defun pcmpl-ssh-hosts ()
+ "Return a list of known SSH hosts.
+Uses both `pcmpl-ssh-config-file' and `pcmpl-ssh-known-hosts-file'."
+ (let ((hosts (pcmpl-ssh-known-hosts)))
+ (dolist (h (pcmpl-ssh-config-hosts))
+ (add-to-list 'hosts h))
+ hosts))
+
+;;;###autoload
+(defun pcomplete/ssh ()
+ "Completion rules for the `ssh' command."
+ (pcomplete-opt "1246AaCfgKkMNnqsTtVvXxYbcDeFiLlmOopRSw")
+ (pcomplete-here (pcmpl-ssh-hosts)))
+
+;;;###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
+ (lambda (string pred action)
+ (let ((table
+ (cond
+ ((string-match "\\`[^:/]+:" string) ; Remote file name.
+ (if (and (eq action 'lambda)
+ (eq (match-end 0) (length string)))
+ ;; Avoid connecting to the remote host when we're
+ ;; only completing the host name.
+ (list string)
+ (completion-table-subvert (pcomplete-all-entries)
+ "" "/ssh:")))
+ ((string-match "/" string) ; Local file name.
+ (pcomplete-all-entries))
+ (t ;Host name or local file name.
+ (append (all-completions string (pcomplete-all-entries))
+ (mapcar (lambda (host) (concat host ":"))
+ (pcmpl-ssh-hosts)))))))
+ (complete-with-action action table string pred))))))
+
+(provide 'pcmpl-unix)
+
;;; pcmpl-unix.el ends here