1/* Convert `time_t' to `struct tm' in UTC.
2 Copyright (C) 1991-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <time.h>
20
21/* Return the `struct tm' representation of *T in UTC,
22 using *TP to store the result. */
23struct tm *
24__gmtime64_r (const __time64_t *t, struct tm *tp)
25{
26 return __tz_convert (*t, 0, tp);
27}
28
29/* Provide a 32-bit variant if needed. */
30
31#if __TIMESIZE != 64
32
33libc_hidden_def (__gmtime64_r)
34
35struct tm *
36__gmtime_r (const time_t *t, struct tm *tp)
37{
38 __time64_t t64 = *t;
39 return __gmtime64_r (&t64, tp);
40}
41
42#endif
43
44libc_hidden_def (__gmtime_r)
45weak_alias (__gmtime_r, gmtime_r)
46
47/* Return the `struct tm' representation of *T in UTC. */
48struct tm *
49__gmtime64 (const __time64_t *t)
50{
51 return __tz_convert (*t, 0, &_tmbuf);
52}
53
54/* Provide a 32-bit variant if needed. */
55
56#if __TIMESIZE != 64
57
58libc_hidden_def (__gmtime64)
59
60struct tm *
61gmtime (const time_t *t)
62{
63 __time64_t t64 = *t;
64 return __gmtime64 (&t64);
65}
66
67#endif
68