1 /* $NetBSD: sysv_shm_50.c,v 1.5 2019/12/15 16:48:26 tsutsui Exp $ */
2
3 /*-
4 * Copyright (c) 1999 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #include <sys/cdefs.h>
34 __KERNEL_RCSID(0, "$NetBSD: sysv_shm_50.c,v 1.5 2019/12/15 16:48:26 tsutsui Exp $");
35
36 #if defined(_KERNEL_OPT)
37 #include "opt_compat_netbsd.h"
38 #endif
39
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/signal.h>
43 #include <sys/proc.h>
44 #include <sys/shm.h>
45
46 #ifndef SYSVSHM
47 #define SYSVSHM
48 #endif
49
50 #include <sys/syscallargs.h>
51
52 #include <compat/sys/shm.h>
53
54 int
compat_50_sys___shmctl13(struct lwp * l,const struct compat_50_sys___shmctl13_args * uap,register_t * retval)55 compat_50_sys___shmctl13(struct lwp *l, const struct compat_50_sys___shmctl13_args *uap, register_t *retval)
56 {
57 /* {
58 syscallarg(int) shmid;
59 syscallarg(int) cmd;
60 syscallarg(struct shmid_ds13 *) buf;
61 } */
62 struct shmid_ds shmbuf;
63 struct shmid_ds13 oshmbuf;
64 int cmd, error;
65
66 cmd = SCARG(uap, cmd);
67
68 if (cmd == IPC_SET) {
69 error = copyin(SCARG(uap, buf), &oshmbuf, sizeof(oshmbuf));
70 if (error)
71 return (error);
72 __shmid_ds13_to_native(&oshmbuf, &shmbuf);
73 }
74
75 error = shmctl1(l, SCARG(uap, shmid), cmd,
76 (cmd == IPC_SET || cmd == IPC_STAT) ? &shmbuf : NULL);
77
78 if (error == 0 && cmd == IPC_STAT) {
79 __native_to_shmid_ds13(&shmbuf, &oshmbuf);
80 error = copyout(&oshmbuf, SCARG(uap, buf), sizeof(oshmbuf));
81 }
82
83 return (error);
84 }
85