glibc/sysdeps/unix/sysv/linux/settimezone.c

37 lines
1.2 KiB
C

/* Obsolete set system time. Linux version.
Copyright (C) 2019-2020 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
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <sys/time.h>
#include <sysdep.h>
/* Set the system-wide timezone.
This call is restricted to the super-user.
This operation is considered obsolete, kernel support may not be
available on all architectures. */
int
__settimezone (const struct timezone *tz)
{
#ifdef __NR_settimeofday
return INLINE_SYSCALL_CALL (settimeofday, NULL, tz);
#else
__set_errno (ENOSYS);
return -1;
#endif
}