1/* $NetBSD: sysv_sem_14.c,v 1.16 2011/01/19 10:21:16 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_sem_14.c,v 1.16 2011/01/19 10:21:16 tsutsui Exp $");
35
36#include <sys/param.h>
37#include <sys/systm.h>
38#include <sys/signal.h>
39#include <sys/proc.h>
40#include <sys/sem.h>
41
42#ifndef SYSVSEM
43#define SYSVSEM
44#endif
45
46#include <sys/syscallargs.h>
47
48#include <compat/sys/sem.h>
49
50
51int
52compat_14_sys___semctl(struct lwp *l, const struct compat_14_sys___semctl_args *uap, register_t *retval)
53{
54 /* {
55 syscallarg(int) semid;
56 syscallarg(int) semnum;
57 syscallarg(int) cmd;
58 syscallarg(union __semun *) arg;
59 } */
60 union __semun arg;
61 struct semid_ds sembuf;
62 struct semid_ds14 osembuf;
63 int cmd, error;
64 void *pass_arg;
65
66 cmd = SCARG(uap, cmd);
67
68 pass_arg = get_semctl_arg(cmd, &sembuf, &arg);
69
70 if (pass_arg != NULL) {
71 error = copyin(SCARG(uap, arg), &arg, sizeof(arg));
72 if (error)
73 return (error);
74 if (cmd == IPC_SET) {
75 error = copyin(arg.buf, &osembuf, sizeof(osembuf));
76 if (error)
77 return (error);
78 __semid_ds14_to_native(&osembuf, &sembuf);
79 }
80 }
81
82 error = semctl1(l, SCARG(uap, semid), SCARG(uap, semnum), cmd,
83 pass_arg, retval);
84
85 if (error == 0 && cmd == IPC_STAT) {
86 __native_to_semid_ds14(&sembuf, &osembuf);
87 error = copyout(&osembuf, arg.buf, sizeof(osembuf));
88 }
89
90 return (error);
91}
92