1/*	$NetBSD: kern_time_30.c,v 1.3 2009/01/11 12:19:14 tsutsui 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 1.3 2009/01/11 12:19:14 tsutsui Exp $");
40
41#include "opt_ntp.h"
42
43#include <sys/param.h>
44#include <sys/systm.h>
45#include <sys/time.h>
46#include <sys/timex.h>
47
48#include <compat/common/compat_util.h>
49#include <compat/sys/time.h>
50#include <compat/sys/timex.h>
51
52#include <sys/syscallargs.h>
53
54int
55compat_30_sys_ntp_gettime(struct lwp *l,
56    const struct compat_30_sys_ntp_gettime_args *uap, register_t *retval)
57{
58#ifdef NTP
59	/* {
60		syscallarg(struct ntptimeval30 *) ontvp;
61	} */
62	struct ntptimeval ntv;
63	struct ntptimeval30 ntv30;
64	struct timeval tv;
65	int error;
66
67	if (SCARG(uap, ntvp)) {
68		ntp_gettime(&ntv);
69		TIMESPEC_TO_TIMEVAL(&tv, &ntv.time);
70		timeval_to_timeval50(&tv, &ntv30.time);
71		ntv30.maxerror = ntv.maxerror;
72		ntv30.esterror = ntv.esterror;
73
74		error = copyout(&ntv30, SCARG(uap, ntvp), sizeof(ntv30));
75		if (error)
76			return error;
77 	}
78	*retval = ntp_timestatus();
79	return 0;
80#else
81	return ENOSYS;
82#endif
83}
84