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/* Set the system clock on a Linux kernel
Copyright (C) 2017 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
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <stddef.h> /* For NULL. */
#include <sys/time.h>
#include <time.h>
/* Set the system clock to *WHEN. */
extern int __y2038_linux_support;
int
__stime64 (const __time64_t *when)
{
struct timeval tv32;
if (when == NULL)
{
__set_errno (EINVAL);
return -1;
}
if (__y2038_linux_support)
{
/* TODO: implement 64-bit-time syscall case */
}
if (*when > INT_MAX)
{
__set_errno (EOVERFLOW);
return -1;
}
tv32.tv_sec = *when;
tv32.tv_usec = 0;
return __settimeofday (&tv32, (struct timezone *) 0);
}
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