92 lines
2.8 KiB
C
92 lines
2.8 KiB
C
/* $NetBSD: sysv_sem_14.c,v 1.16 2011/01/19 10:21:16 tsutsui Exp $ */
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/*-
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: sysv_sem_14.c,v 1.16 2011/01/19 10:21:16 tsutsui Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/signal.h>
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#include <sys/proc.h>
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#include <sys/sem.h>
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#ifndef SYSVSEM
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#define SYSVSEM
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#endif
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#include <sys/syscallargs.h>
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#include <compat/sys/sem.h>
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int
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compat_14_sys___semctl(struct lwp *l, const struct compat_14_sys___semctl_args *uap, register_t *retval)
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{
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/* {
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syscallarg(int) semid;
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syscallarg(int) semnum;
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syscallarg(int) cmd;
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syscallarg(union __semun *) arg;
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} */
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union __semun arg;
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struct semid_ds sembuf;
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struct semid_ds14 osembuf;
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int cmd, error;
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void *pass_arg;
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cmd = SCARG(uap, cmd);
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pass_arg = get_semctl_arg(cmd, &sembuf, &arg);
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if (pass_arg != NULL) {
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error = copyin(SCARG(uap, arg), &arg, sizeof(arg));
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if (error)
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return (error);
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if (cmd == IPC_SET) {
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error = copyin(arg.buf, &osembuf, sizeof(osembuf));
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if (error)
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return (error);
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__semid_ds14_to_native(&osembuf, &sembuf);
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}
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}
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error = semctl1(l, SCARG(uap, semid), SCARG(uap, semnum), cmd,
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pass_arg, retval);
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if (error == 0 && cmd == IPC_STAT) {
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__native_to_semid_ds14(&sembuf, &osembuf);
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error = copyout(&osembuf, arg.buf, sizeof(osembuf));
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}
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return (error);
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}
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