HardenedBSD/include/err.h
Pedro F. Giffuni 2fd63590ae Avoid implicit gcc nonnull attribute in vwarnx().
We removed the nonnull attributes from our headers long ago, but still
__printflike() includes it implicitly. This will cause the NULL check to
be optimized away in higher -O levels and it will also trigger a
-Wnonnull-compare warning.

Avoid warning with it in vwarnx().

Obtained from:	DragonfLyBSD (git 6329e2f68af73662a1960240675e796ab586bcb1)
2018-01-28 19:37:30 +00:00

70 lines
3.0 KiB
C

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)err.h 8.1 (Berkeley) 6/2/93
* $FreeBSD$
*/
#ifndef _ERR_H_
#define _ERR_H_
/*
* Don't use va_list in the err/warn prototypes. Va_list is typedef'd in two
* places (<machine/varargs.h> and <machine/stdarg.h>), so if we include one
* of them here we may collide with the utility's includes. It's unreasonable
* for utilities to have to include one of them to include err.h, so we get
* __va_list from <sys/_types.h> and use it.
*/
#include <sys/cdefs.h>
#include <sys/_types.h>
__NULLABILITY_PRAGMA_PUSH
__BEGIN_DECLS
void err(int, const char *, ...) __dead2 __printf0like(2, 3);
void verr(int, const char *, __va_list) __dead2 __printf0like(2, 0);
void errc(int, int, const char *, ...) __dead2 __printf0like(3, 4);
void verrc(int, int, const char *, __va_list) __dead2
__printf0like(3, 0);
void errx(int, const char *, ...) __dead2 __printf0like(2, 3);
void verrx(int, const char *, __va_list) __dead2 __printf0like(2, 0);
void warn(const char *, ...) __printf0like(1, 2);
void vwarn(const char *, __va_list) __printf0like(1, 0);
void warnc(int, const char *, ...) __printf0like(2, 3);
void vwarnc(int, const char *, __va_list) __printf0like(2, 0);
void warnx(const char *, ...) __printflike(1, 2);
void vwarnx(const char *, __va_list) __printf0like(1, 0);
void err_set_file(void *);
void err_set_exit(void (* _Nullable)(int));
__END_DECLS
__NULLABILITY_PRAGMA_POP
#endif /* !_ERR_H_ */