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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libc/] [fstat.c] - Rev 173

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/*
 *  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
 

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