X-Git-Url: http://git.hcoop.net/bpt/emacs.git/blobdiff_plain/233ba4d924933cb56129bd7511e6137b7c0b8e3e..37b9743e79bac608a45fade0744248446aaa0a33:/lisp/password-cache.el

diff --git a/lisp/password-cache.el b/lisp/password-cache.el
index fcae55ad59..9f5c18f341 100644
--- a/lisp/password-cache.el
+++ b/lisp/password-cache.el
@@ -1,6 +1,6 @@
 ;;; password-cache.el --- Read passwords, possibly using a password cache.
 
-;; Copyright (C) 1999-2000, 2003-2011  Free Software Foundation, Inc.
+;; Copyright (C) 1999-2000, 2003-2012  Free Software Foundation, Inc.
 
 ;; Author: Simon Josefsson <simon@josefsson.org>
 ;; Created: 2003-12-21
@@ -76,6 +76,13 @@ regulate cache behavior."
        key
        (symbol-value (intern-soft key password-data))))
 
+;;;###autoload
+(defun password-in-cache-p (key)
+  "Check if KEY is in the cache."
+  (and password-cache
+       key
+       (intern-soft key password-data)))
+
 (defun password-read (prompt &optional key)
   "Read password, for use with KEY, from user, or from cache if wanted.
 KEY indicate the purpose of the password, so the cache can
@@ -109,12 +116,14 @@ but can be invoked at any time to forcefully remove passwords
 from the cache.  This may be useful when it has been detected
 that a password is invalid, so that `password-read' query the
 user again."
-  (let ((password (symbol-value (intern-soft key password-data))))
-    (when password
-      (if (fboundp 'clear-string)
-	  (clear-string password)
-	(fillarray password ?_))
-      (unintern key password-data))))
+  (let ((sym (intern-soft key password-data)))
+    (when sym
+      (let ((password (symbol-value sym)))
+        (when (stringp password)
+          (if (fboundp 'clear-string)
+              (clear-string password)
+            (fillarray password ?_)))
+        (unintern key password-data)))))
 
 (defun password-cache-add (key password)
   "Add password to cache.