6d0fe480a8
POSIX explicitly states that the application must declare union semun. This makes no sense, but it is what it is. This brings us into line with Linux, MacOS/Darwin, and NetBSD. In a ports exp-run a moderate number of ports fail due to a lack of approprate autotools-like discovery mechanisms or local patches. A commit to address them will follow shortly. PR: 224300, 224443 (exp-run) Reviewed by: emaste, jhb, kib Exp-run by: antoine Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D14492
94 lines
2.7 KiB
C
94 lines
2.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2002 Doug Rabson
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* All rights reserved.
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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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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#ifndef NO_COMPAT7
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#define _WANT_SEMUN_OLD
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#endif
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#define _WANT_SEMUN
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#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/sem.h>
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#include <stdarg.h>
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#include <stdlib.h>
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int __semctl(int semid, int semnum, int cmd, union semun *arg);
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#ifndef NO_COMPAT7
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int freebsd7___semctl(int semid, int semnum, int cmd, union semun_old *arg);
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int freebsd7_semctl(int semid, int semnum, int cmd, ...);
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#endif
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int
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semctl(int semid, int semnum, int cmd, ...)
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{
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va_list ap;
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union semun semun;
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union semun *semun_ptr;
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va_start(ap, cmd);
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if (cmd == IPC_SET || cmd == IPC_STAT || cmd == GETALL
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|| cmd == SETVAL || cmd == SETALL) {
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semun = va_arg(ap, union semun);
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semun_ptr = &semun;
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} else {
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semun_ptr = NULL;
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}
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va_end(ap);
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return (__semctl(semid, semnum, cmd, semun_ptr));
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}
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#ifndef NO_COMPAT7
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int
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freebsd7_semctl(int semid, int semnum, int cmd, ...)
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{
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va_list ap;
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union semun_old semun;
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union semun_old *semun_ptr;
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va_start(ap, cmd);
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if (cmd == IPC_SET || cmd == IPC_STAT || cmd == GETALL
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|| cmd == SETVAL || cmd == SETALL) {
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semun = va_arg(ap, union semun_old);
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semun_ptr = &semun;
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} else {
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semun_ptr = NULL;
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}
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va_end(ap);
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return (freebsd7___semctl(semid, semnum, cmd, semun_ptr));
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}
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__sym_compat(semctl, freebsd7_semctl, FBSD_1.0);
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#endif
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