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/*

 *  fdatasync() - POSIX 1003.1b 6.6.2 - Synchronize the Data of a File

 *

 *  COPYRIGHT (c) 1989-1999.

 *  On-Line Applications Research Corporation (OAR).

 *

 *  The license and distribution terms for this file may be

 *  found in the file LICENSE in this distribution or at

 *  http://www.OARcorp.com/rtems/license.html.

 *

 *  $Id: fdatasync.c,v 1.2 2001-09-27 12:01:15 chris Exp $

 */

#include <unistd.h>

#include "libio_.h"

int fdatasync(

  int     fd

)

{

  rtems_libio_t *iop;

  rtems_libio_check_fd( fd );

  iop = rtems_libio_iop( fd );

  rtems_libio_check_is_open(iop);

  rtems_libio_check_permissions( iop, LIBIO_FLAGS_WRITE );

  /*

   *  Now process the fdatasync().

   */

  if ( !iop->handlers->fdatasync )

    set_errno_and_return_minus_one( ENOTSUP );

  return (*iop->handlers->fdatasync)( iop );

}