1/* Copyright (C) 1999-2023 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#define ntp_gettime ntp_gettime_redirect
19
20#include <time.h>
21#include <sys/timex.h>
22
23#undef ntp_gettime
24
25#ifndef MOD_OFFSET
26# define modes mode
27#endif
28
29/* glibc 2.12 added the 'tai' field to follow along the kernel, but it did
30 not add a compatibility symbol, instead it added __ntp_gettimex. However
31 ntptimeval was still used in both cases, so to keep compatibility it
32 can not set all the new field. */
33
34/* clock_adjtime64 with CLOCK_REALTIME does not trigger EINVAL,
35 ENODEV, or EOPNOTSUPP. It might still trigger EPERM. */
36
37int
38__ntp_gettime64 (struct __ntptimeval64 *ntv)
39{
40 struct __timex64 tntx;
41 int result;
42
43 tntx.modes = 0;
44 result = __clock_adjtime64 (CLOCK_REALTIME, &tntx);
45 ntv->time = tntx.time;
46 ntv->maxerror = tntx.maxerror;
47 ntv->esterror = tntx.esterror;
48
49 return result;
50}
51
52#if __TIMESIZE != 64
53libc_hidden_def (__ntp_gettime64)
54
55int
56__ntp_gettime (struct ntptimeval *ntv)
57{
58 struct __ntptimeval64 ntv64;
59 int result;
60
61 result = __ntp_gettime64 (&ntv64);
62 ntv->time = valid_timeval64_to_timeval (ntv64.time);
63 ntv->maxerror = ntv64.maxerror;
64 ntv->esterror = ntv64.esterror;
65
66 return result;
67}
68#endif
69strong_alias (__ntp_gettime, ntp_gettime)
70