diff options
Diffstat (limited to 'usr/src/boot/lib/libstand/ioctl.c')
| -rw-r--r-- | usr/src/boot/lib/libstand/ioctl.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/usr/src/boot/lib/libstand/ioctl.c b/usr/src/boot/lib/libstand/ioctl.c new file mode 100644 index 0000000000..a4512af05e --- /dev/null +++ b/usr/src/boot/lib/libstand/ioctl.c @@ -0,0 +1,88 @@ +/* $NetBSD: ioctl.c,v 1.4 1994/10/30 21:48:24 cgd Exp $ */ + +/*- + * Copyright (c) 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * The Mach Operating System project at Carnegie-Mellon University. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)ioctl.c 8.1 (Berkeley) 6/11/93 + * + * + * Copyright (c) 1989, 1990, 1991 Carnegie Mellon University + * All Rights Reserved. + * + * Author: Alessandro Forin + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie the + * rights to redistribute these changes. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include "stand.h" + +int +ioctl(fd, cmd, arg) + int fd; + u_long cmd; + char *arg; +{ + struct open_file *f = &files[fd]; + + if ((unsigned)fd >= SOPEN_MAX || f->f_flags == 0) { + errno = EBADF; + return (-1); + } + if (f->f_flags & F_RAW) { + errno = (f->f_dev->dv_ioctl)(f, cmd, arg); + if (errno) + return (-1); + return (0); + } + errno = EIO; + return (-1); +} |