diff options
| -rw-r--r-- | include/time.h | 9 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/settimeofday.c | 53 |
2 files changed, 62 insertions, 0 deletions
diff --git a/include/time.h b/include/time.h index a80953d5dd..73f66277ac 100644 --- a/include/time.h +++ b/include/time.h @@ -8,6 +8,7 @@ # include <time/mktime-internal.h> # include <endian.h> # include <time-clockid.h> +# include <sys/time.h> extern __typeof (strftime_l) __strftime_l; libc_hidden_proto (__strftime_l) @@ -224,6 +225,14 @@ extern int __sched_rr_get_interval64 (pid_t pid, struct __timespec64 *tp); libc_hidden_proto (__sched_rr_get_interval64); #endif +#if __TIMESIZE == 64 +# define __settimeofday64 __settimeofday +#else +extern int __settimeofday64 (const struct __timeval64 *tv, + const struct timezone *tz); +libc_hidden_proto (__settimeofday64) +#endif + /* Compute the `struct tm' representation of T, offset OFFSET seconds east of UTC, and store year, yday, mon, mday, wday, hour, min, sec into *TP. diff --git a/sysdeps/unix/sysv/linux/settimeofday.c b/sysdeps/unix/sysv/linux/settimeofday.c new file mode 100644 index 0000000000..ea45f1d7cb --- /dev/null +++ b/sysdeps/unix/sysv/linux/settimeofday.c @@ -0,0 +1,53 @@ +/* settimeofday -- set system time - Linux version supporting 64 bit time. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <time.h> +#include <sys/time.h> + +/* Set the current time of day and timezone information. + This call is restricted to the super-user. */ +int +__settimeofday64 (const struct __timeval64 *tv, const struct timezone *tz) +{ + if (__glibc_unlikely (tz != 0)) + { + if (tv != 0) + { + __set_errno (EINVAL); + return -1; + } + return __settimezone (tz); + } + + struct __timespec64 ts = timeval64_to_timespec64 (*tv); + return __clock_settime64 (CLOCK_REALTIME, &ts); +} + +#if __TIMESIZE != 64 +libc_hidden_def (__settimeofday64) + +int +__settimeofday (const struct timeval *tv, const struct timezone *tz) +{ + struct __timeval64 tv64 = valid_timeval_to_timeval64 (*tv); + + return __settimeofday64 (&tv64, tz); +} +#endif +weak_alias (__settimeofday, settimeofday); |