1  /* Change access and modification times of open file.  Linux version.
       2     Copyright (C) 2007-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <errno.h>
      20  #include <fcntl.h>
      21  #include <string.h>
      22  #include <time.h>
      23  #include <sysdep.h>
      24  
      25  
      26  /* Change the access time of the file associated with FD to TSP[0] and
      27     the modification time of FILE to TSP[1].
      28  
      29     Starting with 2.6.22 the Linux kernel has the utimensat syscall which
      30     can be used to implement futimens.  */
      31  int
      32  __futimens64 (int fd, const struct __timespec64 tsp64[2])
      33  {
      34    if (fd < 0)
      35      return INLINE_SYSCALL_ERROR_RETURN_VALUE (EBADF);
      36  
      37    return __utimensat64_helper (fd, NULL, &tsp64[0], 0);
      38  }
      39  
      40  #if __TIMESIZE != 64
      41  libc_hidden_def (__futimens64);
      42  
      43  int
      44  __futimens (int fd, const struct timespec tsp[2])
      45  {
      46    struct __timespec64 tsp64[2];
      47    if (tsp)
      48      {
      49        tsp64[0] = valid_timespec_to_timespec64 (tsp[0]);
      50        tsp64[1] = valid_timespec_to_timespec64 (tsp[1]);
      51      }
      52  
      53    return __futimens64 (fd, tsp ? &tsp64[0] : NULL);
      54  }
      55  #endif
      56  weak_alias (__futimens, futimens)