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FUTIMESAT(2)               Linux Programmer's Manual              FUTIMESAT(2)

       futimesat  -  change  timestamps of a file relative to a directory file

       #include <fcntl.h> /* Definition of AT_* constants */

       int futimesat(int dirfd, const char *pathname,
                     const struct timeval times[2]);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       Since glibc 2.10: _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
       Before glibc 2.10: _ATFILE_SOURCE

       This system call is obsolete.  Use utimensat(2) instead.

       The futimesat() system  call  operates  in  exactly  the  same  way  as
       utimes(2), except for the differences described in this manual page.

       If  the  pathname given in pathname is relative, then it is interpreted
       relative to the directory referred to  by  the  file  descriptor  dirfd
       (rather  than  relative to the current working directory of the calling
       process, as is done by utimes(2) for a relative pathname).

       If pathname is relative and dirfd is the special value  AT_FDCWD,  then
       pathname  is  interpreted  relative to the current working directory of
       the calling process (like utimes(2)).

       If pathname is absolute, then dirfd is ignored.

       On success, futimesat() returns a 0.  On  error,  -1  is  returned  and
       errno is set to indicate the error.

       The  same  errors  that  occur for utimes(2) can also occur for futime-
       sat().  The following additional errors can occur for futimesat():

       EBADF  dirfd is not a valid file descriptor.

              pathname is relative and dirfd is a file descriptor referring to
              a file other than a directory.

       futimesat() was added to Linux in kernel 2.6.16.

       This  system call is nonstandard.  It was implemented from a specifica-
       tion that was proposed for POSIX.1, but that specification was replaced
       by the one for utimensat(2).

       A similar system call exists on Solaris.

   Glibc Notes
       If  pathname  is  NULL,  then  the  glibc  futimesat() wrapper function
       updates the times for the file referred to by dirfd.

       stat(2), utimensat(2), utimes(2), futimes(3), path_resolution(7)

       This page is part of release 3.25 of the Linux  man-pages  project.   A
       description  of  the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

Linux                             2009-12-13                      FUTIMESAT(2)

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