163275Smckusick /*-
2*63370Sbostic * Copyright (c) 1993
3*63370Sbostic * The Regents of the University of California. All rights reserved.
463275Smckusick *
563275Smckusick * This code is derived from software contributed to Berkeley by
663275Smckusick * The Mach Operating System project at Carnegie-Mellon University.
763275Smckusick *
863275Smckusick * %sccs.include.redist.c%
963275Smckusick *
10*63370Sbostic * @(#)ioctl.c 8.1 (Berkeley) 06/11/93
1163275Smckusick *
1263275Smckusick *
1363275Smckusick * Copyright (c) 1989, 1990, 1991 Carnegie Mellon University
1463275Smckusick * All Rights Reserved.
1563275Smckusick *
1663275Smckusick * Author: Alessandro Forin
1763275Smckusick *
1863275Smckusick * Permission to use, copy, modify and distribute this software and its
1963275Smckusick * documentation is hereby granted, provided that both the copyright
2063275Smckusick * notice and this permission notice appear in all copies of the
2163275Smckusick * software, derivative works or modified versions, and any portions
2263275Smckusick * thereof, and that both notices appear in supporting documentation.
2363275Smckusick *
2463275Smckusick * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
2563275Smckusick * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
2663275Smckusick * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
2763275Smckusick *
2863275Smckusick * Carnegie Mellon requests users of this software to return to
2963275Smckusick *
3063275Smckusick * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
3163275Smckusick * School of Computer Science
3263275Smckusick * Carnegie Mellon University
3363275Smckusick * Pittsburgh PA 15213-3890
3463275Smckusick *
3563275Smckusick * any improvements or extensions that they make and grant Carnegie the
3663275Smckusick * rights to redistribute these changes.
3763275Smckusick */
3863275Smckusick
3963275Smckusick #include <stand/stand.h>
4063275Smckusick
ioctl(fd,cmd,arg)4163275Smckusick ioctl(fd, cmd, arg)
4263275Smckusick int fd;
4363275Smckusick int cmd;
4463275Smckusick char *arg;
4563275Smckusick {
4663275Smckusick register struct open_file *f = &files[fd];
4763275Smckusick
4863275Smckusick if ((unsigned)fd >= SOPEN_MAX || f->f_flags == 0) {
4963275Smckusick errno = EBADF;
5063275Smckusick return (-1);
5163275Smckusick }
5263275Smckusick if (f->f_flags & F_RAW) {
5363275Smckusick errno = (f->f_dev->dv_ioctl)(f, cmd, arg);
5463275Smckusick if (errno)
5563275Smckusick return (-1);
5663275Smckusick return (0);
5763275Smckusick }
5863275Smckusick return (-1);
5963275Smckusick }
60