HardenedBSD/include/ssp/stdio.h
Kyle Evans 5af6fbd727 ssp: appease -Wgnu-statement-expression-from-macro-expansion
It's a stupid warning, but some ports enable it by default and were
already defining _FORTIFY_SOURCE, thus exposing the new macros
immediately.  This at least fixes the libfido2 build, perhaps others as
well.

While we're here, fix a fresh build of stand w/ FORTIFY_SOURCE enabled
by not pulling in the ssp headers if _STANDALONE is defined.  We do not
have runtime support in libsa as of the time of writing.

Reported by:	netchild
Sponsored by:	Stormshield
Sponsored by:	Klara, Inc.
2024-05-14 18:22:18 -05:00

88 lines
3.1 KiB
C

/* $NetBSD: stdio.h,v 1.5 2011/07/17 20:54:34 joerg Exp $ */
/*-
*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2006 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef _SSP_STDIO_H_
#define _SSP_STDIO_H_
#include <ssp/ssp.h>
__BEGIN_DECLS
int __sprintf_chk(char *__restrict, int, size_t, const char *__restrict, ...)
__printflike(4, 5);
int __vsprintf_chk(char *__restrict, int, size_t, const char *__restrict,
__va_list)
__printflike(4, 0);
int __snprintf_chk(char *__restrict, size_t, int, size_t,
const char *__restrict, ...)
__printflike(5, 6);
int __vsnprintf_chk(char *__restrict, size_t, int, size_t,
const char *__restrict, __va_list)
__printflike(5, 0);
char *__fgets_chk(char *, int, size_t, FILE *);
__END_DECLS
#if __SSP_FORTIFY_LEVEL > 0
#define sprintf(str, ...) __extension__ ({ \
char *_ssp_str = (str); \
__builtin___sprintf_chk(_ssp_str, 0, __ssp_bos(_ssp_str), \
__VA_ARGS__); \
})
#define vsprintf(str, fmt, ap) __extension__ ({ \
char *_ssp_str = (str); \
__builtin___vsprintf_chk(_ssp_str, 0, __ssp_bos(_ssp_str), fmt, \
ap); \
})
#define snprintf(str, len, ...) __extension__ ({ \
char *_ssp_str = (str); \
__builtin___snprintf_chk(_ssp_str, len, 0, __ssp_bos(_ssp_str), \
__VA_ARGS__); \
})
#define vsnprintf(str, len, fmt, ap) __extension__ ({ \
char *_ssp_str = (str); \
__builtin___vsnprintf_chk(_ssp_str, len, 0, __ssp_bos(_ssp_str), \
fmt, ap); \
})
#define fgets(str, len, fp) __extension__ ({ \
char *_ssp_str = (str); \
__fgets_chk(_ssp_str, len, __ssp_bos(_ssp_str), fp); \
})
#endif /* __SSP_FORTIFY_LEVEL > 0 */
#endif /* _SSP_STDIO_H_ */