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

NAME         top

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

SYNOPSIS         top

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

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

DESCRIPTION         top

       This system call is obsolete.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.

RETURN VALUE         top

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

ERRORS         top

       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         top

       futimesat() was added to Linux in kernel 2.6.16.

CONFORMING TO         top

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

       A similar system call exists on Solaris.

NOTES         top

Glibc Notes

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

SEE ALSO         top

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

COLOPHON         top

       This page is part of release 3.23 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                                 2008-06-05                         FUTIMESAT(2)