futimesat

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

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

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

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

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

       futimesat(): _GNU_SOURCE

DESCRIPTION
       This system call is obsolete.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
       On success, futimesat() returns a 0.  On error, -1 is returned and  er-
       rno is set to indicate the error.

ERRORS
       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.

       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; library support was
       added to glibc in version 2.4.

CONFORMING TO
       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.

NOTES
   Glibc notes
       If pathname is NULL, then the glibc futimesat()  wrapper  function  up-
       dates the times for the file referred to by dirfd.

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

COLOPHON
       This  page  is  part of release 5.05 of the Linux man-pages project.  A
       description of the project, information about reporting bugs,  and  the
       latest     version     of     this    page,    can    be    found    at
       https://www.kernel.org/doc/man-pages/.

Linux                             2017-09-15                      FUTIMESAT(2)