| 1 | /* Copyright (C) 1999-2024 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 | #define ntp_gettime ntp_gettime_redirect |
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| 19 | |
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| 20 | #include <time.h> |
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| 21 | #include <sys/timex.h> |
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| 22 | |
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| 23 | #undef ntp_gettime |
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| 24 | |
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| 25 | #ifndef MOD_OFFSET |
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| 26 | # define modes mode |
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| 27 | #endif |
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| 28 | |
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| 29 | /* glibc 2.12 added the 'tai' field to follow along the kernel, but it did |
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| 30 | not add a compatibility symbol, instead it added __ntp_gettimex. However |
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| 31 | ntptimeval was still used in both cases, so to keep compatibility it |
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| 32 | can not set all the new field. */ |
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| 33 | |
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| 34 | /* clock_adjtime64 with CLOCK_REALTIME does not trigger EINVAL, |
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| 35 | ENODEV, or EOPNOTSUPP. It might still trigger EPERM. */ |
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| 36 | |
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| 37 | int |
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| 38 | __ntp_gettime64 (struct __ntptimeval64 *ntv) |
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| 39 | { |
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| 40 | struct __timex64 tntx; |
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| 41 | int result; |
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| 42 | |
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| 43 | tntx.modes = 0; |
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| 44 | result = __clock_adjtime64 (CLOCK_REALTIME, &tntx); |
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| 45 | ntv->time = tntx.time; |
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| 46 | ntv->maxerror = tntx.maxerror; |
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| 47 | ntv->esterror = tntx.esterror; |
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| 48 | |
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| 49 | return result; |
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| 50 | } |
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| 51 | |
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| 52 | #if __TIMESIZE != 64 |
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| 53 | libc_hidden_def (__ntp_gettime64) |
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| 54 | |
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| 55 | int |
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| 56 | __ntp_gettime (struct ntptimeval *ntv) |
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| 57 | { |
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| 58 | struct __ntptimeval64 ntv64; |
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| 59 | int result; |
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| 60 | |
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| 61 | result = __ntp_gettime64 (&ntv64); |
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| 62 | ntv->time = valid_timeval64_to_timeval (ntv64.time); |
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| 63 | ntv->maxerror = ntv64.maxerror; |
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| 64 | ntv->esterror = ntv64.esterror; |
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| 65 | |
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| 66 | return result; |
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| 67 | } |
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| 68 | #endif |
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| 69 | strong_alias (__ntp_gettime, ntp_gettime) |
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| 70 | |
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