about summary refs log tree commit diff
path: root/sysdeps/unix/sysv/linux/clock_settime.c
blob: 2a32e2eb137a3a060e3ff53d1a2a8ef2c0b954f8 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
/* Copyright (C) 2003-2022 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#include <errno.h>
#include <sysdep.h>
#include <time.h>
#include <shlib-compat.h>
#include <kernel-features.h>

/* Set CLOCK to value TP.  */
int
__clock_settime64 (clockid_t clock_id, const struct __timespec64 *tp)
{
  /* Make sure the time cvalue is OK.  */
  if (! valid_nanoseconds (tp->tv_nsec))
    {
      __set_errno (EINVAL);
      return -1;
    }

#ifndef __NR_clock_settime64
# define __NR_clock_settime64 __NR_clock_settime
#endif
  int ret = INLINE_SYSCALL_CALL (clock_settime64, clock_id, tp);

#ifndef __ASSUME_TIME64_SYSCALLS
  if (ret == 0 || errno != ENOSYS)
    return ret;

  if (! in_time_t_range (tp->tv_sec))
    {
      __set_errno (EOVERFLOW);
      return -1;
    }

  struct timespec ts32 = valid_timespec64_to_timespec (*tp);
  ret = INLINE_SYSCALL_CALL (clock_settime, clock_id, &ts32);
#endif

  return ret;
}

#if __TIMESIZE != 64
libc_hidden_def (__clock_settime64)

int
__clock_settime (clockid_t clock_id, const struct timespec *tp)
{
  struct __timespec64 ts64 = valid_timespec_to_timespec64 (*tp);

  return __clock_settime64 (clock_id, &ts64);
}
#endif

libc_hidden_def (__clock_settime)

versioned_symbol (libc, __clock_settime, clock_settime, GLIBC_2_17);
/* clock_settime moved to libc in version 2.17;
   old binaries may expect the symbol version it had in librt.  */
#if SHLIB_COMPAT (libc, GLIBC_2_2, GLIBC_2_17)
strong_alias (__clock_settime, __clock_settime_2);
compat_symbol (libc, __clock_settime_2, clock_settime, GLIBC_2_2);
#endif