/* +----------------------------------------------------------------------+ | PHP Version 7 | +----------------------------------------------------------------------+ | Copyright (c) 1997-2018 The PHP Group | +----------------------------------------------------------------------+ | This source file is subject to version 3.01 of the PHP license, | | that is bundled with this package in the file LICENSE, and is | | available through the world-wide-web at the following url: | | http://www.php.net/license/3_01.txt | | If you did not receive a copy of the PHP license and are unable to | | obtain it through the world-wide-web, please send a note to | | license@php.net so we can mail you a copy immediately. | +----------------------------------------------------------------------+ | Author: | +----------------------------------------------------------------------+ */ #include "php.h" #ifndef HAVE_EXPLICIT_BZERO /* $OpenBSD: explicit_bzero.c,v 1.4 2015/08/31 02:53:57 guenther Exp $ */ /* * Public domain. * Written by Matthew Dempsky. */ #include <string.h> PHPAPI void php_explicit_bzero(void *dst, size_t siz) { #if HAVE_EXPLICIT_MEMSET explicit_memset(dst, 0, siz); #elif defined(PHP_WIN32) RtlSecureZeroMemory(dst, siz); #elif defined(__GNUC__) memset(dst, 0, siz); asm __volatile__("" :: "r"(dst) : "memory"); #else size_t i = 0; volatile unsigned char *buf = (volatile unsigned char *)dst; for (; i < siz; i ++) buf[i] = 0; #endif } #endif /* * Local variables: * tab-width: 4 * c-basic-offset: 4 * End: * vim600: sw=4 ts=4 fdm=marker * vim<600: sw=4 ts=4 */