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y2038: linux: Provide __clock_settime64 implementation
[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / clock_settime.c
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04277e02 1/* Copyright (C) 2003-2019 Free Software Foundation, Inc.
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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
59ba27a6 15 License along with the GNU C Library; if not, see
5a82c748 16 <https://www.gnu.org/licenses/>. */
ad0e8eb0 17
f99ed760 18#include <errno.h>
ad0e8eb0 19#include <sysdep.h>
8dee4833 20#include <time.h>
7b5af2d8 21#include <shlib-compat.h>
ad0e8eb0 22
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23/* Set CLOCK to value TP. */
24int
7ce198e1 25__clock_settime64 (clockid_t clock_id, const struct __timespec64 *tp)
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26{
27 /* Make sure the time cvalue is OK. */
28 if (tp->tv_nsec < 0 || tp->tv_nsec >= 1000000000)
29 {
30 __set_errno (EINVAL);
31 return -1;
32 }
33
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34#ifdef __ASSUME_TIME64_SYSCALLS
35# ifndef __NR_clock_settime64
36# define __NR_clock_settime64 __NR_clock_settime
37# endif
38 return INLINE_SYSCALL_CALL (clock_settime64, clock_id, tp);
39#else
40# ifdef __NR_clock_settime64
41 int ret = INLINE_SYSCALL_CALL (clock_settime64, clock_id, tp);
42 if (ret == 0 || errno != ENOSYS)
43 return ret;
44# endif
45 if (! in_time_t_range (tp->tv_sec))
46 {
47 __set_errno (EOVERFLOW);
48 return -1;
49 }
50
51 struct timespec ts32 = valid_timespec64_to_timespec (*tp);
52 return INLINE_SYSCALL_CALL (clock_settime, clock_id, &ts32);
53#endif
b06f4c00 54}
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55
56#if __TIMESIZE != 64
57int
58__clock_settime (clockid_t clock_id, const struct timespec *tp)
59{
60 struct __timespec64 ts64 = valid_timespec_to_timespec64 (*tp);
61
62 return __clock_settime64 (clock_id, &ts64);
63}
64#endif
65
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66libc_hidden_def (__clock_settime)
67
68versioned_symbol (libc, __clock_settime, clock_settime, GLIBC_2_17);
69/* clock_settime moved to libc in version 2.17;
70 old binaries may expect the symbol version it had in librt. */
71#if SHLIB_COMPAT (libc, GLIBC_2_2, GLIBC_2_17)
72strong_alias (__clock_settime, __clock_settime_2);
73compat_symbol (libc, __clock_settime_2, clock_settime, GLIBC_2_2);
74#endif