HardenedBSD/include/err.h
Pedro F. Giffuni 649702c5a3 Make use of clang nullability attributes.
Replace uses of the GCC __nonnull__ attribute with the clang nullability
qualifiers. The replacement should be transparent for clang developers as
the new qualifiers will produce the same warnings and will be useful for
static checkers but will not cause aggressive optimizations.

GCC will not produce such warnings and developers will have to use
upgraded GCC ports built with the system headers from r312538.

Hinted by:	Apple's Libc-1158.20.4, Bionic libc
MFC after:	11.1 Release

Differential Revision:	https://reviews.freebsd.org/D9004
2017-01-28 20:54:43 +00:00

68 lines
2.9 KiB
C

/*-
* 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) __printflike(1, 0);
void err_set_file(void *);
void err_set_exit(void (* _Nullable)(int));
__END_DECLS
__NULLABILITY_PRAGMA_POP
#endif /* !_ERR_H_ */