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/* futimes -- change access and modification times of open file. Linux version.
Copyright (C) 2002-2018 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 <sysdep.h>
#include <string.h>
#include <time.h>
#include <utime.h>
#include <sys/time.h>
#include <_itoa.h>
#include <fcntl.h>
#include <y2038-support.h>
/* Change the access time of the file associated with FD to TVP[0] and
the modification time of FILE to TVP[1].
Starting with 2.6.22 the Linux kernel has the utimensat syscall which
can be used to implement futimes. */
int
__futimes (int fd, const struct timeval tvp[2])
{
/* The utimensat system call expects timespec not timeval. */
struct timespec ts[2];
if (tvp != NULL)
{
if (tvp[0].tv_usec < 0 || tvp[0].tv_usec >= 1000000
|| tvp[1].tv_usec < 0 || tvp[1].tv_usec >= 1000000)
return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
TIMEVAL_TO_TIMESPEC (&tvp[0], &ts[0]);
TIMEVAL_TO_TIMESPEC (&tvp[1], &ts[1]);
}
return INLINE_SYSCALL (utimensat, 4, fd, NULL, tvp ? &ts : NULL, 0);
}
weak_alias (__futimes, futimes)
/* 64-bit time version */
int
__futimes64 (int fd, const struct __timeval64 tvp[2])
{
struct timespec ts32[2], *ts32p = NULL;
/* Only try and use this syscall if defined by kernel */
#ifdef __NR_utimensat_time64
/* The utimensat system call expects timespec not timeval. */
struct __timespec64 ts64[2], *ts64p = NULL;
int result;
#endif
/* Only try and use this syscall if defined by kernel */
#ifdef __NR_utimensat_time64
if (__y2038_linux_support > 0)
{
if (tvp != NULL)
{
if (tvp[0].tv_usec < 0 || tvp[0].tv_usec >= 1000000
|| tvp[1].tv_usec < 0 || tvp[1].tv_usec >= 1000000)
return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
ts64[0].tv_sec = tvp[0].tv_sec;
ts64[0].tv_nsec = tvp[0].tv_usec * 1000;
ts64[0].tv_pad = 0;
ts64[1].tv_sec = tvp[1].tv_sec;
ts64[1].tv_nsec = tvp[1].tv_usec * 1000;
ts64[1].tv_pad = 0;
ts64p = ts64;
}
result = INLINE_SYSCALL (utimensat_time64, 4, fd, NULL, ts64p, 0);
if (result == 0 || errno != ENOSYS)
return result;
__y2038_linux_support = -1;
}
#endif
if (tvp != NULL)
{
if (tvp[0].tv_usec < 0 || tvp[0].tv_usec >= 1000000
|| tvp[1].tv_usec < 0 || tvp[1].tv_usec >= 1000000)
return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
if (tvp[0].tv_sec > INT_MAX || tvp[1].tv_sec > INT_MAX)
return INLINE_SYSCALL_ERROR_RETURN_VALUE (EOVERFLOW);
ts32[0].tv_sec = tvp[0].tv_sec;
ts32[0].tv_nsec = tvp[0].tv_usec * 1000;
ts32[1].tv_sec = tvp[1].tv_sec;
ts32[1].tv_nsec = tvp[1].tv_usec * 1000;
ts32p = ts32;
}
return INLINE_SYSCALL (utimensat, 4, fd, NULL, ts32p, 0);
}
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