freebsd-dev/lib/libssp/fortify_stubs.c
Kyle Evans 0e4ea7835e libssp: fix FORTIFY_SOURCE stub declarations
The LSB 4.1 that I referenced omitted the varargs, and I failed to catch it.
The __vsnprintf_chk error was from just downright misreading the page. GCC6
caught all of these, but I had only tested GCC4.2.

X-MFC-With:	r356356
2020-01-04 22:05:00 +00:00

135 lines
3.4 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2019 Kyle Evans <kevans@FreeBSD.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <stdarg.h>
#include <stdlib.h>
/* Signatures grabbed from LSB Core Specification 4.1 */
void *__memcpy_chk(void *dst, const void *src, size_t len,
size_t dstlen);
void *__memset_chk(void *dst, int c, size_t len, size_t dstlen);
int __snprintf_chk(char *str, size_t maxlen, int flag, size_t strlen,
const char *fmt, ...);
int __sprintf_chk(char *str, int flag, size_t strlen, const char *fmt, ...);
char *__stpcpy_chk(char *dst, const char *src, size_t dstlen);
char *__strcat_chk(char *dst, const char *src, size_t dstlen);
char *__strcpy_chk(char *dst, const char *src, size_t dstlen);
char *__strncat_chk(char *dst, const char *src, size_t len, size_t dstlen);
char *__strncpy_chk(char *dst, const char *src, size_t len, size_t dstlen);
int __vsnprintf_chk(char *str, size_t size, int flags, size_t len,
const char *format, va_list ap);
int __vsprintf_chk(char *str, int flag, size_t slen, const char *format,
va_list ap);
#define ABORT() abort2("_FORTIFY_SOURCE not supported", 0, NULL)
void *
__memcpy_chk(void *dst, const void *src, size_t len,
size_t dstlen)
{
ABORT();
}
void *
__memset_chk(void *dst, int c, size_t len, size_t dstlen)
{
ABORT();
}
int
__snprintf_chk(char *str, size_t maxlen, int flag, size_t strlen,
const char *fmt, ...)
{
ABORT();
}
int
__sprintf_chk(char *str, int flag, size_t strlen, const char *fmt, ...)
{
ABORT();
}
char *
__stpcpy_chk(char *dst, const char *src, size_t dstlen)
{
ABORT();
}
char *
__strcat_chk(char *dst, const char *src, size_t dstlen)
{
ABORT();
}
char *
__strcpy_chk(char *dst, const char *src, size_t dstlen)
{
ABORT();
}
char *
__strncat_chk(char *dst, const char *src, size_t len, size_t dstlen)
{
ABORT();
}
char *
__strncpy_chk(char *dst, const char *src, size_t len, size_t dstlen)
{
ABORT();
}
int
__vsnprintf_chk(char *str, size_t size, int flags, size_t len,
const char *format, va_list ap)
{
ABORT();
}
int
__vsprintf_chk(char *str, int flag, size_t slen, const char *format,
va_list ap)
{
ABORT();
}