/*
 * Copyright (C) 2015-2016 Dimitris Papastamos <sin@2f30.org>
 * Copyright (C) 2022 q66 <q66@chimera-linux.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_SYS_SELECT_H
#define _FORTIFY_SYS_SELECT_H

#if !defined(__cplusplus) && !defined(__clang__)
__extension__
#endif
#include_next <sys/select.h>

#if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0

#ifdef __cplusplus
extern "C" {
#endif

#ifdef __clang__
#define _FORTIFY_FD_POS0 const __attribute__((__pass_object_size__(0)))
#else
#define _FORTIFY_FD_POS0
#endif

static __inline__ __attribute__((__always_inline__,__gnu_inline__,__artificial__))
void __fortify_FD_CLR(int __f, fd_set * _FORTIFY_FD_POS0 __s)
{
	size_t __b = __builtin_object_size(__s, 0);

	if (__f < 0 || __f >= FD_SETSIZE || __b < sizeof(fd_set))
		__builtin_trap();
	FD_CLR(__f, __s);
}

static __inline__ __attribute__((__always_inline__,__gnu_inline__,__artificial__))
void __fortify_FD_SET(int __f, fd_set * _FORTIFY_FD_POS0 __s)
{
	size_t __b = __builtin_object_size(__s, 0);

	if (__f < 0 || __f >= FD_SETSIZE || __b < sizeof(fd_set))
		__builtin_trap();
	FD_SET(__f, __s);
}

#undef _FORTIFY_FD_POS0

#undef FD_CLR
#define FD_CLR(fd, set) __fortify_FD_CLR(fd, set)
#undef FD_SET
#define FD_SET(fd, set) __fortify_FD_SET(fd, set)

#ifdef __cplusplus
}
#endif

#endif

#endif
