[BACK]Return to zero_bytes.c CVS log [TXT][DIR] Up to [local] / src / usr.bin / sudo
File: [local] / src / usr.bin / sudo / Attic / zero_bytes.c (download)

Revision 1.3, Thu Jul 26 16:10:16 2007 UTC (16 years, 10 months ago) by millert
Branch: MAIN
CVS Tags: OPENBSD_4_4_BASE, OPENBSD_4_4, OPENBSD_4_3_BASE, OPENBSD_4_3, OPENBSD_4_2_BASE, OPENBSD_4_2
Changes since 1.2: +4 -3 lines 

Update to sudo 1.6.9p1.  Note that the environment handling in sudo
1.6.9 has changed relative to older versions.  Sudo now starts
commands with a minimal environment containing the variables in the
env_keep and env_check lists.  This behavior is configurable in the
sudoers file.  Please see the "SECURITY NOTES" section in the sudo
manual.

/*
 * Copyright (c) 2003-2005 Todd C. Miller <Todd.Miller@courtesan.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/types.h>

#include <config.h>
#include <compat.h>

#ifndef lint
__unused static const char rcsid[] = "$Sudo: zero_bytes.c,v 1.2.2.2 2007/06/12 01:28:42 millert Exp $";
#endif /* lint */

/*
 * Like bzero(3) but with a volatile pointer.  The hope is that
 * the compiler will not be able to optimize away this function.
 */
void
zero_bytes(v, n)
    volatile VOID *v;
    size_t n;
{
    volatile char *p, *ep;

    for (p = v, ep = p + n; p < ep; p++)
	*p = 0;
    return;
}