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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_STDLIB_H
#define _FORTIFY_STDLIB_H
__extension__
#include_next <stdlib.h>
#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
__extension__
#include_next <limits.h>
#endif
#if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
#include "fortify-headers.h"
#ifdef __cplusplus
extern "C" {
#endif
#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
#undef realpath
_FORTIFY_FN(realpath) char *realpath(const char *__p, char *__r)
{
size_t __b = __builtin_object_size(__r, 0);
if (__r) {
#ifndef PATH_MAX
#error PATH_MAX unset. A fortified realpath will not work.
#else
char __buf[PATH_MAX], *__ret;
size_t __l;
__ret = __orig_realpath(__p, __buf);
if (!__ret)
return NULL;
__l = __builtin_strlen(__ret) + 1;
if (__l > __b)
__builtin_trap();
__builtin_memcpy(__r, __ret, __l);
return __r;
#endif
}
return __orig_realpath(__p, __r);
}
#endif
#ifdef __cplusplus
}
#endif
#endif
#endif
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