d1d32c3dc4
These headers are required in order to build the bootstrap tools on macOS and Linux. A follow-up commit will add implementations of functions that don't exist on those operating systems to -legacy when bootstrapping. Reviewed By: brooks Differential Revision: https://reviews.freebsd.org/D14316
66 lines
2.5 KiB
C
66 lines
2.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright 2018-2020 Alex Richardson <arichardson@FreeBSD.org>
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*
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* This software was developed by SRI International and the University of
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* Cambridge Computer Laboratory (Department of Computer Science and
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* Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the
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* DARPA SSITH research programme.
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*
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* This software was developed by SRI International and the University of
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* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
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* ("CTSRD"), as part of the DARPA CRASH research programme.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#pragma once
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/* <bits/fcntl.h> includes <bits/stat.h> which contains a member __unused */
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#include "__unused_workaround_start.h"
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#include_next <fcntl.h>
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#include "__unused_workaround_end.h"
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#ifdef __unused_undefd
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#undef __unused_undefd
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#define __unused __attribute__((unused))
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#endif
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#include <sys/file.h>
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#ifndef O_EXLOCK
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#define O_EXLOCK (1 << 30)
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#endif
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#ifndef O_SHLOCK
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#define O_SHLOCK (1 << 31)
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#endif
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#undef open
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#define open(path, flags, ...) ({ \
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int __fd = (open)(path, flags, ##__VA_ARGS__); \
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if (flags & O_EXLOCK) flock(__fd, LOCK_EX); \
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if (flags & O_SHLOCK) flock(__fd, LOCK_SH); \
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__fd; })
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