NetBSD/sys/compat/common/sysv_shm_14.c

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/* $NetBSD: sysv_shm_14.c,v 1.5 2003/01/18 07:28:34 thorpej 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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>
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__KERNEL_RCSID(0, "$NetBSD: sysv_shm_14.c,v 1.5 2003/01/18 07:28:34 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/signal.h>
#include <sys/proc.h>
#include <sys/mount.h>
#include <sys/shm.h>
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#ifndef SYSVSHM
#define SYSVSHM
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#endif
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#include <sys/sa.h>
#include <sys/syscallargs.h>
static void shmid_ds14_to_native __P((struct shmid_ds14 *, struct shmid_ds *));
static void native_to_shmid_ds14 __P((struct shmid_ds *, struct shmid_ds14 *));
static void
shmid_ds14_to_native(oshmbuf, shmbuf)
struct shmid_ds14 *oshmbuf;
struct shmid_ds *shmbuf;
{
ipc_perm14_to_native(&oshmbuf->shm_perm, &shmbuf->shm_perm);
#define CVT(x) shmbuf->x = oshmbuf->x
CVT(shm_segsz);
CVT(shm_lpid);
CVT(shm_cpid);
CVT(shm_nattch);
CVT(shm_atime);
CVT(shm_dtime);
CVT(shm_ctime);
#undef CVT
}
static void
native_to_shmid_ds14(shmbuf, oshmbuf)
struct shmid_ds *shmbuf;
struct shmid_ds14 *oshmbuf;
{
native_to_ipc_perm14(&shmbuf->shm_perm, &oshmbuf->shm_perm);
#define CVT(x) oshmbuf->x = shmbuf->x
CVT(shm_segsz);
CVT(shm_lpid);
CVT(shm_cpid);
CVT(shm_nattch);
CVT(shm_atime);
CVT(shm_dtime);
CVT(shm_ctime);
#undef CVT
}
int
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compat_14_sys_shmctl(struct lwp *l, void *v, register_t *retval)
{
struct compat_14_sys_shmctl_args /* {
syscallarg(int) shmid;
syscallarg(int) cmd;
syscallarg(struct shmid_ds14 *) buf;
} */ *uap = v;
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struct proc *p = l->l_proc;
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(p, 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);
}