45 lines
1.7 KiB
EmacsLisp
45 lines
1.7 KiB
EmacsLisp
;;; jabber-ft-common.el --- Common functions for sending and receiving files (JEP-0096)
|
|
|
|
;; Copyright (C) 2006 Magnus Henoch
|
|
|
|
;; Author: Magnus Henoch <mange@freemail.hu>
|
|
|
|
;; This file 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.
|
|
|
|
;; This file 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 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
;; Boston, MA 02110-1301, USA.
|
|
|
|
(defcustom jabber-ft-md5sum-program (or (when (executable-find "md5")
|
|
(list (executable-find "md5") "-n"))
|
|
(when (executable-find "md5sum")
|
|
(list (executable-find "md5sum"))))
|
|
"The program to use to calculate MD5 sums of files.
|
|
It should accept the file name as the only argument."
|
|
:type 'string
|
|
:group 'jabber)
|
|
|
|
(defun jabber-ft-get-md5 (file-name)
|
|
"Get MD5 sum of FILE-NAME, and return as hex string.
|
|
Return nil if no MD5 summing program is available."
|
|
(when jabber-ft-md5sum-program
|
|
(with-temp-buffer
|
|
(apply 'call-process (car jabber-ft-md5sum-program) nil t nil
|
|
(append (cdr jabber-ft-md5sum-program) (list file-name)))
|
|
;; Output is "hexsum filename"
|
|
(goto-char (point-min))
|
|
(forward-word 1)
|
|
(buffer-substring (point-min) (point)))))
|
|
|
|
(provide 'jabber-ft-common)
|
|
;; arch-tag: 1ce4cce0-8360-11da-a5ba-000a95c2fcd0
|