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File: [local] / src / usr.bin / sudo / Attic / zero_bytes.c (download)

Revision 1.2, Tue Sep 28 15:10:51 2004 UTC (19 years, 8 months ago) by millert
Branch: MAIN
CVS Tags: OPENBSD_4_1_BASE, OPENBSD_4_1, OPENBSD_4_0_BASE, OPENBSD_4_0, OPENBSD_3_9_BASE, OPENBSD_3_9, OPENBSD_3_8_BASE, OPENBSD_3_8, OPENBSD_3_7_BASE, OPENBSD_3_7
Changes since 1.1: +12 -30 lines 

Update to sudo 1.6.8p1

/*
 * Copyright (c) 1999, 2001 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"

#ifndef lint
static const char rcsid[] = "$Sudo: zero_bytes.c,v 1.2 2004/02/13 21:36:44 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;
}