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04277e02 | 1 | /* Copyright (C) 1999-2019 Free Software Foundation, Inc. |
13fa3676 UD |
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 | |
41bdb6e2 AJ |
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. | |
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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 | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
13fa3676 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
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17 | |
18 | #include <errno.h> | |
8be918b7 | 19 | #include <time.h> |
13fa3676 | 20 | #include <sys/time.h> |
7b5af2d8 | 21 | #include <shlib-compat.h> |
13fa3676 | 22 | |
13fa3676 UD |
23 | /* Set CLOCK to value TP. */ |
24 | int | |
89fb6835 | 25 | __clock_settime (clockid_t clock_id, const struct timespec *tp) |
13fa3676 | 26 | { |
38cc11da | 27 | int retval = -1; |
13fa3676 | 28 | |
e79af11c UD |
29 | /* Make sure the time cvalue is OK. */ |
30 | if (tp->tv_nsec < 0 || tp->tv_nsec >= 1000000000) | |
31 | { | |
32 | __set_errno (EINVAL); | |
33 | return -1; | |
34 | } | |
35 | ||
13fa3676 UD |
36 | switch (clock_id) |
37 | { | |
ad0e8eb0 | 38 | case CLOCK_REALTIME: |
b06f4c00 WD |
39 | { |
40 | struct timeval tv; | |
41 | TIMESPEC_TO_TIMEVAL (&tv, tp); | |
42 | retval = __settimeofday (&tv, NULL); | |
43 | } | |
13fa3676 UD |
44 | break; |
45 | ||
4165d44d | 46 | default: |
38cc11da | 47 | __set_errno (EINVAL); |
f99ed760 | 48 | break; |
13fa3676 UD |
49 | } |
50 | ||
51 | return retval; | |
52 | } | |
7b5af2d8 ZW |
53 | libc_hidden_def (__clock_settime) |
54 | ||
55 | versioned_symbol (libc, __clock_settime, clock_settime, GLIBC_2_17); | |
56 | /* clock_settime moved to libc in version 2.17; | |
57 | old binaries may expect the symbol version it had in librt. */ | |
58 | #if SHLIB_COMPAT (libc, GLIBC_2_2, GLIBC_2_17) | |
59 | strong_alias (__clock_settime, __clock_settime_2); | |
60 | compat_symbol (libc, __clock_settime_2, clock_settime, GLIBC_2_2); | |
61 | #endif |