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NAME

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

SYNOPSIS

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

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

DESCRIPTION

       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.

RETURN VALUE

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

ERRORS

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

       EBADF  dirfd is not a valid file descriptor.

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

VERSIONS

       futimesat() was added to Linux in kernel 2.6.16.

CONFORMING TO

       This system call is non-standard but is proposed  for  inclusion  in  a
       future revision of POSIX.1.  A similar system call exists on Solaris.

NOTES

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

SEE ALSO

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

COLOPHON

       This page is part of release 2.77 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/.