;;; sha1-dl.el --- SHA1 Secure Hash Algorithm using DL module.
-;; Copyright (C) 1999 Shuhei KOBAYASHI
+;; Copyright (C) 1999, 2001, 2004 Free Software Foundation, Inc.
;; Author: Shuhei KOBAYASHI <shuhei@aqua.ocn.ne.jp>
;; Keywords: SHA1, FIPS 180-1
;; You should have received a copy of the GNU General Public License
;; along with this program; see the file COPYING. If not, write to
-;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;; Code:
(provide 'sha1-dl) ; beware of circular dependency.
-(eval-when-compile
- (require 'sha1) ; sha1-dl-module.
- (defun-maybe dynamic-link (a))
- (defun-maybe dynamic-call (a b)))
+(eval-when-compile (require 'sha1)) ; sha1-dl-module.
-(defvar sha1-dl-handle
- (and (stringp sha1-dl-module)
- (file-exists-p sha1-dl-module)
- (dynamic-link sha1-dl-module)))
+;;; This file is loaded (from "sha1.el") only when sha1-dl-module exists.
+(defvar sha1-dl-handle (dynamic-link sha1-dl-module))
;;; sha1-dl-module provides `sha1-string' and `sha1-binary'.
(dynamic-call "emacs_sha1_init" sha1-dl-handle)
-(defun sha1-region (beg end)
- (sha1-string (buffer-substring-no-properties beg end)))
+(defun sha1-region (beg end &optional binary)
+ (if binary
+ (sha1-binary (buffer-substring-no-properties beg end))
+ (sha1-string (buffer-substring-no-properties beg end))))
-(defun sha1 (object &optional beg end)
+(defun sha1 (object &optional beg end binary)
"Return the SHA1 (Secure Hash Algorithm) of an object.
OBJECT is either a string or a buffer.
Optional arguments BEG and END denote buffer positions for computing the
-hash of a portion of OBJECT."
+hash of a portion of OBJECT.
+If BINARY is non-nil, return a string in binary form."
(if (stringp object)
- (sha1-string object)
+ (if binary
+ (sha1-binary object)
+ (sha1-string object))
(save-excursion
(set-buffer object)
- (sha1-region (or beg (point-min)) (or end (point-max))))))
-
-(provide 'sha1-dl)
+ (sha1-region (or beg (point-min)) (or end (point-max)) binary))))
;;; sha1-dl.el ends here