Mercurial > hg > xemacs-beta

view src/getpagesize.h @ 5891:a0e751d6c3ad

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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
line wrap: on
line source

/* This file is part of XEmacs.

XEmacs 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 3 of the License, or (at your
option) any later version.

XEmacs 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 XEmacs.  If not, see <http://www.gnu.org/licenses/>. */

/* Synched up with: FSF 19.30. */

#ifndef INCLUDED_getpagesize_h_
#define INCLUDED_getpagesize_h_

/* Emulate getpagesize on systems that lack it.  */

#if 0
#ifdef __hpux
#include <sys/types.h>
static size_t getpagesize() { return( 4096 ); }
#define HAVE_GETPAGESIZE
#endif
#endif

#ifndef HAVE_GETPAGESIZE

#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

#ifdef _SC_PAGESIZE
#define getpagesize() sysconf(_SC_PAGESIZE)
#else

#include <sys/param.h>

#ifdef EXEC_PAGESIZE
#define getpagesize() EXEC_PAGESIZE
#else
#ifdef NBPG
#define getpagesize() NBPG * CLSIZE
#ifndef CLSIZE
#define CLSIZE 1
#endif /* no CLSIZE */
#else /* no NBPG */
#if (defined (sparc) && defined (USG)) || defined (SOLARIS2)
#define getpagesize() PAGESIZE
#else /* not Solaris 2 */
#ifdef PAGESIZE
#define getpagesize() PAGESIZE
#endif
#endif /* not Solaris 2 */
#endif /* no NBPG */
#endif /* no EXEC_PAGESIZE */
#endif /* _SC_PAGESIZE */
#endif /* not HAVE_GETPAGESIZE */

#endif /* INCLUDED_getpagesize_h_ */