1 /* Convert `time_t' to `struct tm' in UTC.
2 Copyright (C) 1991-2022 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. */
23 struct tm *
__gmtime64_r(const __time64_t * t,struct tm * tp)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
libc_hidden_def(__gmtime64_r)33 libc_hidden_def (__gmtime64_r)
34
35 struct 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
44 libc_hidden_def (__gmtime_r)
weak_alias(__gmtime_r,gmtime_r)45 weak_alias (__gmtime_r, gmtime_r)
46
47 /* Return the `struct tm' representation of *T in UTC. */
48 struct 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
libc_hidden_def(__gmtime64)58 libc_hidden_def (__gmtime64)
59
60 struct tm *
61 gmtime (const time_t *t)
62 {
63 __time64_t t64 = *t;
64 return __gmtime64 (&t64);
65 }
66
67 #endif
68