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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libc/] [ioctl.c] - Rev 30
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/* * 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; }
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