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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libc/] [ioctl.c] - Blame information for rev 30

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1 30 unneback
/*
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 *  ioctl() system call
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 *
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 *  This routine is not defined in the POSIX 1003.1b standard but is
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 *  commonly supported on most UNIX and POSIX systems.
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 *
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 *  COPYRIGHT (c) 1989-1999.
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 *  On-Line Applications Research Corporation (OAR).
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 *
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 *  The license and distribution terms for this file may be
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 *  found in the file LICENSE in this distribution or at
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 *  http://www.OARcorp.com/rtems/license.html.
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 *
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 *  $Id: ioctl.c,v 1.2 2001-09-27 12:01:15 chris Exp $
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 */
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#include "libio_.h"
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int ioctl(
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  int         fd,
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  unsigned32  command,
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  void *      buffer
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)
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{
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  rtems_status_code  rc;
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  rtems_libio_t     *iop;
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  rtems_libio_check_fd( fd );
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  iop = rtems_libio_iop( fd );
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  rtems_libio_check_is_open(iop);
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  /*
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   *  Now process the ioctl().
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   */
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  if ( !iop->handlers->ioctl )
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    set_errno_and_return_minus_one( ENOTSUP );
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  rc = (*iop->handlers->ioctl)( iop, command, buffer );
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  return rc;
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}

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