Mercurial > hg > xemacs-beta
annotate lisp/config.el @ 5892:053ef01b71a8
Import the #'clear-string API from GNU, use it in tls.c
src/ChangeLog addition:
2015-04-18 Aidan Kehoe <kehoea@parhasard.net>
* sequence.c (Fclear_string): New, API from GNU. Zero a string's
contents, making sure the text is not kept around even when the
string's data is reallocated because of a changed character
length.
* sequence.c (syms_of_sequence): Make it available to Lisp.
* lisp.h: Make it available to C code.
* tls.c (nss_pk11_password): Use it.
* tls.c (gnutls_pk11_password): Use it.
* tls.c (openssl_password): Use it.
tests/ChangeLog addition:
2015-04-18 Aidan Kehoe <kehoea@parhasard.net>
* automated/lisp-tests.el:
Test #'clear-string, just added. Unfortunately there's no way to
be certain from Lisp that the old password data has been erased
after realloc; it may be worth adding a test to tests.c, but
*we'll be reading memory we shouldn't be*, so that gives me pause.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sat, 18 Apr 2015 23:00:14 +0100 |
| parents | 308d34e9f07d |
| children |
| rev | line source |
|---|---|
| 428 | 1 ;;; config.el --- access configuration parameters |
| 2 | |
| 3 ;; Copyright (C) 1997 Sun Microsystems, Inc. | |
| 4 | |
| 5 ;; Author: Martin Buchholz | |
| 6 ;; Keywords: configure | |
| 7 | |
| 8 ;; This file is part of XEmacs. | |
| 9 | |
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10 ;; XEmacs is free software: you can redistribute it and/or modify it |
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11 ;; under the terms of the GNU General Public License as published by the |
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12 ;; Free Software Foundation, either version 3 of the License, or (at your |
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13 ;; option) any later version. |
| 428 | 14 |
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15 ;; XEmacs is distributed in the hope that it will be useful, but WITHOUT |
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16 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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17 ;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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18 ;; for more details. |
| 428 | 19 |
| 20 ;; You should have received a copy of the GNU General Public License | |
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21 ;; along with XEmacs. If not, see <http://www.gnu.org/licenses/>. |
| 428 | 22 |
| 23 ;;; Synched up with: not in FSF. | |
| 24 | |
| 25 ;;; Commentary: | |
| 26 | |
| 27 ;;; Code: | |
| 28 | |
| 29 | |
| 30 (defvar config-value-file (expand-file-name "config.values" doc-directory) | |
| 31 "File containing configuration parameters and their values.") | |
| 32 | |
| 33 (defvar config-value-hash-table nil | |
| 34 "Hash table to store configuration parameters and their values.") | |
| 35 | |
| 36 ;;;###autoload | |
| 37 (defun config-value-hash-table () | |
| 38 "Return hash table of configuration parameters and their values." | |
| 39 (when (null config-value-hash-table) | |
| 40 (setq config-value-hash-table (make-hash-table :size 300)) | |
| 41 (save-excursion | |
| 42 (let ((buf (get-buffer-create " *Config*"))) | |
| 43 (set-buffer buf) | |
| 44 (erase-buffer) | |
| 45 (insert-file-contents config-value-file) | |
| 46 (goto-char (point-min)) | |
| 47 (condition-case nil | |
| 48 (while t | |
| 49 (let* ((key (read buf)) | |
| 50 (value (read buf)) | |
| 51 (prev (gethash key config-value-hash-table))) | |
| 52 (cond ((null prev) | |
| 53 (puthash key value config-value-hash-table)) | |
| 54 ((atom prev) | |
| 55 (puthash key (list prev value) config-value-hash-table)) | |
| 56 (t | |
| 57 (nconc prev (list value)))))) | |
| 58 (end-of-file nil))) | |
| 59 (kill-buffer " *Config*"))) | |
| 60 config-value-hash-table) | |
| 61 | |
| 62 ;;;###autoload | |
| 63 (defun config-value (config-symbol) | |
| 64 "Return the value of the configuration parameter CONFIG_SYMBOL." | |
| 65 (gethash config-symbol (config-value-hash-table))) | |
| 66 | |
| 67 (provide 'config) | |
| 68 ;;; config.el ends here |