/* $NetBSD: sysv_shm_14.c,v 1.18 2019/01/27 02:08:39 pgoyette Exp $ */

/* $NetBSD: sysv_shm_14.c,v 1.18 2019/01/27 02:08:39 pgoyette Exp $ */

/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: sysv_shm_14.c,v 1.18 2019/01/27 02:08:39 pgoyette Exp $");

#if defined(_KERNEL_OPT)
#include "opt_compat_netbsd.h"
#endif

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/signal.h>
#include <sys/proc.h>
#include <sys/shm.h>

#ifndef SYSVSHM
#define SYSVSHM
#endif

#include <sys/syscallargs.h>

#include <compat/sys/shm.h>

int
compat_14_sys_shmctl(struct lwp *l, const struct compat_14_sys_shmctl_args *uap, register_t *retval)
{
/* {
syscallarg(int) shmid;
syscallarg(int) cmd;
syscallarg(struct shmid_ds14 *) buf;
} */
struct shmid_ds shmbuf;
struct shmid_ds14 oshmbuf;
int cmd, error;

cmd = SCARG(uap, cmd);

if (cmd == IPC_SET) {
error = copyin(SCARG(uap, buf), &oshmbuf, sizeof(oshmbuf));
if (error)
return (error);
__shmid_ds14_to_native(&oshmbuf, &shmbuf);
}

error = shmctl1(l, SCARG(uap, shmid), cmd,
(cmd == IPC_SET || cmd == IPC_STAT) ? &shmbuf : NULL);

if (error == 0 && cmd == IPC_STAT) {
__native_to_shmid_ds14(&shmbuf, &oshmbuf);
error = copyout(&oshmbuf, SCARG(uap, buf), sizeof(oshmbuf));
}

return (error);
}