86 lines
2.7 KiB
C
86 lines
2.7 KiB
C
/* $NetBSD: sysv_shm_14.c,v 1.18 2019/01/27 02:08:39 pgoyette 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_shm_14.c,v 1.18 2019/01/27 02:08:39 pgoyette Exp $");
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#if defined(_KERNEL_OPT)
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#include "opt_compat_netbsd.h"
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#endif
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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/shm.h>
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#ifndef SYSVSHM
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#define SYSVSHM
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#endif
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#include <sys/syscallargs.h>
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#include <compat/sys/shm.h>
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int
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compat_14_sys_shmctl(struct lwp *l, const struct compat_14_sys_shmctl_args *uap, register_t *retval)
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{
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/* {
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syscallarg(int) shmid;
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syscallarg(int) cmd;
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syscallarg(struct shmid_ds14 *) buf;
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} */
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struct shmid_ds shmbuf;
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struct shmid_ds14 oshmbuf;
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int cmd, error;
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cmd = SCARG(uap, cmd);
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if (cmd == IPC_SET) {
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error = copyin(SCARG(uap, buf), &oshmbuf, sizeof(oshmbuf));
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if (error)
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return (error);
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__shmid_ds14_to_native(&oshmbuf, &shmbuf);
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}
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error = shmctl1(l, SCARG(uap, shmid), cmd,
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(cmd == IPC_SET || cmd == IPC_STAT) ? &shmbuf : NULL);
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if (error == 0 && cmd == IPC_STAT) {
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__native_to_shmid_ds14(&shmbuf, &oshmbuf);
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error = copyout(&oshmbuf, SCARG(uap, buf), sizeof(oshmbuf));
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}
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return (error);
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}
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