1/* $NetBSD: kern_time_30.c,v 1.5 2016/11/03 03:37:06 riastradh Exp $ */
2
3/*-
4 * Copyright (c) 2008 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38#include <sys/cdefs.h>
39__KERNEL_RCSID(0, "$NetBSD: kern_time_30.c,v 1.5 2016/11/03 03:37:06 riastradh Exp $");
40
41#ifdef _KERNEL_OPT
42#include "opt_ntp.h"
43#endif
44
45#include <sys/param.h>
46#include <sys/systm.h>
47#include <sys/time.h>
48#include <sys/timex.h>
49
50#include <compat/common/compat_util.h>
51#include <compat/sys/time.h>
52#include <compat/sys/timex.h>
53
54#include <sys/syscallargs.h>
55
56int
57compat_30_sys_ntp_gettime(struct lwp *l,
58 const struct compat_30_sys_ntp_gettime_args *uap, register_t *retval)
59{
60#ifdef NTP
61 /* {
62 syscallarg(struct ntptimeval30 *) ontvp;
63 } */
64 struct ntptimeval ntv;
65 struct ntptimeval30 ntv30;
66 struct timeval tv;
67 int error;
68
69 if (SCARG(uap, ntvp)) {
70 ntp_gettime(&ntv);
71 TIMESPEC_TO_TIMEVAL(&tv, &ntv.time);
72 timeval_to_timeval50(&tv, &ntv30.time);
73 ntv30.maxerror = ntv.maxerror;
74 ntv30.esterror = ntv.esterror;
75
76 error = copyout(&ntv30, SCARG(uap, ntvp), sizeof(ntv30));
77 if (error)
78 return error;
79 }
80 *retval = ntp_timestatus();
81 return 0;
82#else
83 return ENOSYS;
84#endif
85}
86