1 /* $NetBSD: mm.c,v 1.11 2008/04/28 20:23:47 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: mm.c,v 1.11 2008/04/28 20:23:47 martin Exp $"); 35 36 /* 37 * Memory special file 38 */ 39 40 #include <sys/param.h> 41 #include <sys/conf.h> 42 #include <sys/buf.h> 43 #include <sys/systm.h> 44 #include <sys/uio.h> 45 #include <sys/malloc.h> 46 #include <sys/ioctl.h> 47 #include <sys/proc.h> 48 49 dev_type_ioctl(mmioctl); 50 51 int 52 mmioctl(dev_t dev, u_long cmd, void *data, int flag, 53 struct lwp *l) 54 { 55 switch (minor(dev)) { 56 default: 57 switch (cmd) { 58 case FIONBIO: /* We never block anyway */ 59 return 0; 60 case FIOSETOWN: 61 case FIOGETOWN: 62 case TIOCGPGRP: 63 case TIOCSPGRP: 64 return ENOTTY; 65 case FIOASYNC: 66 if ((*(int *)data) == 0) 67 return 0; 68 /*FALLTHROUGH*/ 69 } 70 return EOPNOTSUPP; 71 } 72 } 73