bsd/kern/kern_xxx.c

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  23 /*
  24  * Copyright (c) 1982, 1986, 1989, 1993
  25  *      The Regents of the University of California.  All rights reserved.
  26  *
  27  * Redistribution and use in source and binary forms, with or without
  28  * modification, are permitted provided that the following conditions
  29  * are met:
  30  * 1. Redistributions of source code must retain the above copyright
  31  *    notice, this list of conditions and the following disclaimer.
  32  * 2. Redistributions in binary form must reproduce the above copyright
  33  *    notice, this list of conditions and the following disclaimer in the
  34  *    documentation and/or other materials provided with the distribution.
  35  * 3. All advertising materials mentioning features or use of this software
  36  *    must display the following acknowledgement:
  37  *      This product includes software developed by the University of
  38  *      California, Berkeley and its contributors.
  39  * 4. Neither the name of the University nor the names of its contributors
  40  *    may be used to endorse or promote products derived from this software
  41  *    without specific prior written permission.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  53  * SUCH DAMAGE.
  54  *
  55  *      @(#)kern_xxx.c  8.2 (Berkeley) 11/14/93
  56  */
  57
  58 #include <cputypes.h>
  59
  60 #include <sys/param.h>
  61 #include <sys/systm.h>
  62 #include <sys/kernel.h>
  63 #include <sys/proc.h>
  64 #include <sys/reboot.h>
  65 #include <sys/vm.h>
  66 #include <sys/sysctl.h>
  67 #include <sys/buf.h>
  68
  69 #include <sys/mount.h>
  70
  71 #if COMPAT_43
  72 /* ARGSUSED */
  73 int
  74 ogethostid(p, uap, retval)
  75 struct proc *p;
  76 void *uap;
  77 register_t *retval;
  78 {
  79
  80         *retval = hostid;
  81         return 0;
  82 }
  83
  84 struct osethostid_args {
  85         long hostid;
  86 };
  87 /* ARGSUSED */
  88 int
  89 osethostid(p, uap, retval)
  90 struct proc *p;
  91 register struct osethostid_args *uap;
  92 register_t *retval;
  93 {
  94         int error;
  95
  96         if (error = suser(p->p_ucred, &p->p_acflag))
  97                 return (error);
  98         hostid = uap->hostid;
  99         return (0);
 100
 101 }
 102
 103 struct ogethostname_args {
 104                 char    *hostname;
 105                 u_int   len;
 106 };
 107 /* ARGSUSED */
 108 int
 109 ogethostname(p, uap, retval)
 110 struct proc *p;
 111 register struct ogethostname_args *uap;
 112 register_t *retval;
 113 {
 114         int name;
 115
 116         name = KERN_HOSTNAME;
 117
 118         return (kern_sysctl(&name, 1, uap->hostname, &uap->len),
 119             0, 0);
 120 }
 121
 122 struct osethostname_args {
 123                 char    *hostname;
 124                 u_int   len;
 125 };
 126 /* ARGSUSED */
 127 int
 128 osethostname(p, uap, retval)
 129 struct proc *p;
 130 register struct osethostname_args *uap;
 131 register_t *retval;
 132 {
 133         int name;
 134         int error;
 135
 136         if (error = suser(p->p_ucred, &p->p_acflag))
 137                 return (error);
 138
 139         name = KERN_HOSTNAME;
 140         return (kern_sysctl(&name, 1, 0, 0, uap->hostname,
 141             uap->len));
 142 }
 143
 144 struct ogetdomainname_args {
 145                 char    *domainname;
 146                 int     len;
 147 };
 148 /* ARGSUSED */
 149 int
 150 ogetdomainname(p, uap, retval)
 151 struct proc *p;
 152 register struct ogetdomainname_args *uap;
 153 register_t *retval;
 154 {
 155         int name;
 156
 157         name = KERN_DOMAINNAME;
 158         return (kern_sysctl(&name, 1, uap->domainname,
 159             &uap->len, 0, 0));
 160 }
 161
 162 struct osetdomainname_args {
 163                 char    *domainname;
 164                 u_int   len;
 165 };
 166 /* ARGSUSED */
 167 int
 168 osetdomainname(p, uap, retval)
 169 struct proc *p;
 170 register struct osetdomainname_args *uap;
 171 register_t *retval;
 172 {
 173         int name;
 174         int error;
 175
 176         if (error = suser(p->p_ucred, &p->p_acflag))
 177                 return (error);
 178         name = KERN_DOMAINNAME;
 179         return (kern_sysctl(&name, 1, 0, 0, uap->domainname,
 180             uap->len));
 181 }
 182 #endif /* COMPAT_43 */
 183
 184 struct reboot_args {
 185                 int     opt;
 186                 char    *command;
 187 };
 188
 189 reboot(p, uap, retval)
 190 struct proc *p;
 191 register struct reboot_args *uap;
 192 register_t *retval;
 193 {
 194         char command[64];
 195         int error;
 196         int dummy=0;
 197
 198         command[0] = '\0';
 199
 200         if (error = suser(p->p_cred->pc_ucred, &p->p_acflag))
 201                 return(error);
 202
 203         if (uap->opt & RB_COMMAND)
 204                 error = copyinstr(uap->command,
 205                                         command, sizeof(command), &dummy);
 206         if (!error) {
 207                 SET(p->p_flag, P_REBOOT);       /* No more signals for this proc */
 208                 boot(RB_BOOT, uap->opt, command);
 209         }
 210         return(error);
 211 }
 212