Subversion Repositories openrisc_2011-10-31

/*

 *  fstat() - POSIX 1003.1b 5.6.2 - Get File Status

 *

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

 */

#include <sys/stat.h>

#include <unistd.h>

#include <string.h>

#include "libio_.h"

int fstat(

  int          fd,

  struct stat *sbuf

)

{

  rtems_libio_t *iop;

  /*

   *  Check to see if we were passed a valid pointer.

   */

  if ( !sbuf )

    set_errno_and_return_minus_one( EFAULT );

  /*

   *  Now process the stat() request.

   */

  iop = rtems_libio_iop( fd );

  rtems_libio_check_fd( fd );

  rtems_libio_check_is_open(iop);

  if ( !iop->handlers )

    set_errno_and_return_minus_one( EBADF );

  if ( !iop->handlers->fstat )

    set_errno_and_return_minus_one( ENOTSUP );

  /*

   *  Zero out the stat structure so the various support

   *  versions of stat don't have to.

   */

  memset( sbuf, 0, sizeof(struct stat) );

  return (*iop->handlers->fstat)( &iop->pathinfo, sbuf );

}

/*

 *  _fstat_r

 *

 *  This is the Newlib dependent reentrant version of fstat().

 */

#if defined(RTEMS_NEWLIB)

#include <reent.h>

int _fstat_r(

  struct _reent *ptr,

  int            fd,

  struct stat   *buf

)

{

  return fstat( fd, buf );

}

#endif