1/* 2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ 29/* 30 * Copyright (c) 1982, 1986, 1991, 1993 31 * The Regents of the University of California. All rights reserved. 32 * 33 * Redistribution and use in source and binary forms, with or without 34 * modification, are permitted provided that the following conditions 35 * are met: 36 * 1. Redistributions of source code must retain the above copyright 37 * notice, this list of conditions and the following disclaimer. 38 * 2. Redistributions in binary form must reproduce the above copyright 39 * notice, this list of conditions and the following disclaimer in the 40 * documentation and/or other materials provided with the distribution. 41 * 3. All advertising materials mentioning features or use of this software 42 * must display the following acknowledgement: 43 * This product includes software developed by the University of 44 * California, Berkeley and its contributors. 45 * 4. Neither the name of the University nor the names of its contributors 46 * may be used to endorse or promote products derived from this software 47 * without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 59 * SUCH DAMAGE. 60 * 61 * @(#)subr_xxx.c 8.1 (Berkeley) 6/10/93 62 */ 63 64#include <sys/param.h> 65#include <sys/systm.h> 66#include <sys/conf.h> 67#include <sys/proc_internal.h> 68#include <sys/vnode.h> 69#include <sys/uio.h> 70#include <sys/sysproto.h> 71 72#include <sys/signalvar.h> /* for psignal() */ 73 74 75#ifdef GPROF 76#include <sys/gmon.h> 77#endif 78 79 80/* 81 * Unsupported device function (e.g. writing to read-only device). 82 */ 83int 84enodev(void) 85{ 86 return (ENODEV); 87} 88 89/* 90 * Unsupported strategy function. 91 */ 92void 93enodev_strat(void) 94{ 95 return; 96} 97 98/* 99 * Unconfigured device function; driver not configured. 100 */ 101int 102enxio(void) 103{ 104 return (ENXIO); 105} 106 107/* 108 * Unsupported ioctl function. 109 */ 110int 111enoioctl(void) 112{ 113 return (ENOTTY); 114} 115 116 117/* 118 * Unsupported system function. 119 * This is used for an otherwise-reasonable operation 120 * that is not supported by the current system binary. 121 */ 122int 123enosys(void) 124{ 125 return (ENOSYS); 126} 127 128/* 129 * Return error for operation not supported 130 * on a specific object or file type. 131 * 132 * XXX Name of this routine is wrong. 133 */ 134int 135eopnotsupp(void) 136{ 137 return (ENOTSUP); 138} 139 140/* 141 * Generic null operation, always returns success. 142 */ 143int 144nullop(void) 145{ 146 return (0); 147} 148 149 150/* 151 * Null routine; placed in insignificant entries 152 * in the bdevsw and cdevsw tables. 153 */ 154int 155nulldev(void) 156{ 157 return (0); 158} 159 160/* 161 * Null system calls. Not invalid, just not configured. 162 */ 163int 164errsys(void) 165{ 166 return(EINVAL); 167} 168 169void 170nullsys(void) 171{ 172} 173 174/* 175 * nonexistent system call-- signal process (may want to handle it) 176 * flag error if process won't see signal immediately 177 * Q: should we do that all the time ?? 178 */ 179/* ARGSUSED */ 180int 181nosys(struct proc *p, __unused struct nosys_args *args, __unused int32_t *retval) 182{ 183 psignal(p, SIGSYS); 184 return (ENOSYS); 185} 186 187#ifdef GPROF 188/* 189 * Stub routine in case it is ever possible to free space. 190 */ 191void 192cfreemem(caddr_t cp, int size) 193{ 194 printf("freeing %p, size %d\n", cp, size); 195} 196#endif 197 198 199