Subversion Repositories openrisc_2011-10-31

/*

 *  ioctl() system call

 *

 *  This routine is not defined in the POSIX 1003.1b standard but is

 *  commonly supported on most UNIX and POSIX systems.

 *

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

 */

#include "libio_.h"

int ioctl(

  int         fd,

  unsigned32  command,

  void *      buffer

)

{

  rtems_status_code  rc;

  rtems_libio_t     *iop;

  rtems_libio_check_fd( fd );

  iop = rtems_libio_iop( fd );

  rtems_libio_check_is_open(iop);

  /*

   *  Now process the ioctl().

   */

  if ( !iop->handlers->ioctl )

    set_errno_and_return_minus_one( ENOTSUP );

  rc = (*iop->handlers->ioctl)( iop, command, buffer );

  return rc;

}