| 1 | /* Copyright (C) 1991-2024 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | #include <errno.h> |
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| 19 | #include <time.h> |
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| 20 | #include <hurd.h> |
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| 21 | #include <hurd/port.h> |
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| 22 | #include <shlib-compat.h> |
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| 23 | |
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| 24 | /* Set the current time of day. |
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| 25 | This call is restricted to the super-user. */ |
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| 26 | int |
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| 27 | __clock_settime (clockid_t clock_id, const struct timespec *ts) |
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| 28 | { |
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| 29 | error_t err; |
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| 30 | mach_port_t hostpriv; |
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| 31 | time_value_t tv; |
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| 32 | |
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| 33 | if (clock_id != CLOCK_REALTIME |
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| 34 | || ! valid_nanoseconds (ns: ts->tv_nsec)) |
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| 35 | return __hurd_fail (EINVAL); |
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| 36 | |
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| 37 | err = __get_privileged_ports (&hostpriv, NULL); |
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| 38 | if (err) |
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| 39 | return __hurd_fail (EPERM); |
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| 40 | |
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| 41 | TIMESPEC_TO_TIME_VALUE (&tv, ts); |
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| 42 | err = __host_set_time (hostpriv, tv); |
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| 43 | __mach_port_deallocate (__mach_task_self (), hostpriv); |
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| 44 | |
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| 45 | return __hurd_fail (err); |
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| 46 | } |
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| 47 | libc_hidden_def (__clock_settime) |
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| 48 | |
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| 49 | versioned_symbol (libc, __clock_settime, clock_settime, GLIBC_2_17); |
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| 50 | /* clock_settime moved to libc in version 2.17; |
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| 51 | old binaries may expect the symbol version it had in librt. */ |
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| 52 | #if SHLIB_COMPAT (libc, GLIBC_2_2, GLIBC_2_17) |
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| 53 | strong_alias (__clock_settime, __clock_settime_2); |
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| 54 | compat_symbol (libc, __clock_settime_2, clock_settime, GLIBC_2_2); |
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| 55 | #endif |
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| 56 | |
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