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/*
* Copyright (C) 2015 Dimitris Papastamos <sin@2f30.org>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted.
*
* 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.
*/
#ifndef _FORTIFY_STRINGS_H
#define _FORTIFY_STRINGS_H
#include_next <strings.h>
#if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
#include "fortify-headers.h"
#ifdef __cplusplus
extern "C" {
#endif
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_POSIX_SOURCE) \
|| (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE+0 < 200809L) \
|| (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700)
#undef bcopy
#undef bzero
fortify_fn(bcopy) void bcopy(const void *src, void *dst, size_t n)
{
size_t bos_dst = __builtin_object_size(dst, 0);
size_t bos_src = __builtin_object_size(src, 0);
if (n > bos_dst || n > bos_src)
__builtin_trap();
return __orig_bcopy(src, dst, n);
}
fortify_fn(bzero) void bzero(void *src, size_t n)
{
size_t bos = __builtin_object_size(src, 0);
if (n > bos)
__builtin_trap();
return __orig_bzero(src, n);
}
#endif
#ifdef __cplusplus
}
#endif
#endif
#endif
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