1 /* Copyright (C) 2003-2021 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 #include <errno.h>
19 #include <sysdep.h>
20 #include <time.h>
21 #include <shlib-compat.h>
22 #include <kernel-features.h>
23
24 /* Set CLOCK to value TP. */
25 int
__clock_settime64(clockid_t clock_id,const struct __timespec64 * tp)26 __clock_settime64 (clockid_t clock_id, const struct __timespec64 *tp)
27 {
28 /* Make sure the time cvalue is OK. */
29 if (! valid_nanoseconds (tp->tv_nsec))
30 {
31 __set_errno (EINVAL);
32 return -1;
33 }
34
35 #ifndef __NR_clock_settime64
36 # define __NR_clock_settime64 __NR_clock_settime
37 #endif
38 int ret = INLINE_SYSCALL_CALL (clock_settime64, clock_id, tp);
39
40 #ifndef __ASSUME_TIME64_SYSCALLS
41 if (ret == 0 || errno != ENOSYS)
42 return ret;
43
44 if (! in_time_t_range (tp->tv_sec))
45 {
46 __set_errno (EOVERFLOW);
47 return -1;
48 }
49
50 struct timespec ts32 = valid_timespec64_to_timespec (*tp);
51 ret = INLINE_SYSCALL_CALL (clock_settime, clock_id, &ts32);
52 #endif
53
54 return ret;
55 }
56
57 #if __TIMESIZE != 64
libc_hidden_def(__clock_settime64)58 libc_hidden_def (__clock_settime64)
59
60 int
61 __clock_settime (clockid_t clock_id, const struct timespec *tp)
62 {
63 struct __timespec64 ts64 = valid_timespec_to_timespec64 (*tp);
64
65 return __clock_settime64 (clock_id, &ts64);
66 }
67 #endif
68
69 libc_hidden_def (__clock_settime)
70
71 versioned_symbol (libc, __clock_settime, clock_settime, GLIBC_2_17);
72 /* clock_settime moved to libc in version 2.17;
73 old binaries may expect the symbol version it had in librt. */
74 #if SHLIB_COMPAT (libc, GLIBC_2_2, GLIBC_2_17)
75 strong_alias (__clock_settime, __clock_settime_2);
76 compat_symbol (libc, __clock_settime_2, clock_settime, GLIBC_2_2);
77 #endif
78