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Annotation of kernel/bsd/kern/kern_xxx.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.1 (the "License").  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License.
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24: 
        !            25: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
        !            26: /*
        !            27:  * Copyright (c) 1982, 1986, 1989, 1993
        !            28:  *     The Regents of the University of California.  All rights reserved.
        !            29:  *
        !            30:  * Redistribution and use in source and binary forms, with or without
        !            31:  * modification, are permitted provided that the following conditions
        !            32:  * are met:
        !            33:  * 1. Redistributions of source code must retain the above copyright
        !            34:  *    notice, this list of conditions and the following disclaimer.
        !            35:  * 2. Redistributions in binary form must reproduce the above copyright
        !            36:  *    notice, this list of conditions and the following disclaimer in the
        !            37:  *    documentation and/or other materials provided with the distribution.
        !            38:  * 3. All advertising materials mentioning features or use of this software
        !            39:  *    must display the following acknowledgement:
        !            40:  *     This product includes software developed by the University of
        !            41:  *     California, Berkeley and its contributors.
        !            42:  * 4. Neither the name of the University nor the names of its contributors
        !            43:  *    may be used to endorse or promote products derived from this software
        !            44:  *    without specific prior written permission.
        !            45:  *
        !            46:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            47:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            48:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            49:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            50:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            51:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            52:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            53:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            54:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            55:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            56:  * SUCH DAMAGE.
        !            57:  *
        !            58:  *     @(#)kern_xxx.c  8.2 (Berkeley) 11/14/93
        !            59:  */
        !            60: 
        !            61: #import <cputypes.h> 
        !            62: 
        !            63: #include <sys/param.h>
        !            64: #include <sys/systm.h>
        !            65: #include <sys/kernel.h>
        !            66: #include <sys/proc.h>
        !            67: #include <sys/reboot.h>
        !            68: #include <sys/vm.h>
        !            69: #include <sys/sysctl.h>
        !            70: 
        !            71: #include <sys/mount.h>
        !            72: 
        !            73: #if COMPAT_43
        !            74: /* ARGSUSED */
        !            75: int
        !            76: ogethostid(p, uap, retval)
        !            77: struct proc *p;
        !            78: void *uap;
        !            79: register_t *retval;
        !            80: {
        !            81: 
        !            82:        *retval = hostid;
        !            83:        return 0;
        !            84: }
        !            85: 
        !            86: struct osethostid_args {
        !            87:        long hostid;
        !            88: };
        !            89: /* ARGSUSED */
        !            90: int
        !            91: osethostid(p, uap, retval)
        !            92: struct proc *p;
        !            93: register struct osethostid_args *uap;
        !            94: register_t *retval;
        !            95: {
        !            96:        int error;
        !            97: 
        !            98:        if (error = suser(p->p_ucred, &p->p_acflag))
        !            99:                return (error);
        !           100:        hostid = uap->hostid;
        !           101:        return (0);
        !           102: 
        !           103: }
        !           104: 
        !           105: struct ogethostname_args {
        !           106:                char    *hostname;
        !           107:                u_int   len;
        !           108: };
        !           109: /* ARGSUSED */
        !           110: int
        !           111: ogethostname(p, uap, retval)
        !           112: struct proc *p;
        !           113: register struct ogethostname_args *uap;
        !           114: register_t *retval;
        !           115: {
        !           116:        int name;
        !           117: 
        !           118:        name = KERN_HOSTNAME;
        !           119: 
        !           120:        return (kern_sysctl(&name, 1, uap->hostname, &uap->len),
        !           121:            0, 0);
        !           122: }
        !           123: 
        !           124: struct osethostname_args {
        !           125:                char    *hostname;
        !           126:                u_int   len;
        !           127: };
        !           128: /* ARGSUSED */
        !           129: int
        !           130: osethostname(p, uap, retval)
        !           131: struct proc *p;
        !           132: register struct osethostname_args *uap;
        !           133: register_t *retval;
        !           134: {
        !           135:        int name;
        !           136:        int error;
        !           137: 
        !           138:        if (error = suser(p->p_ucred, &p->p_acflag))
        !           139:                return (error);
        !           140:                
        !           141:        name = KERN_HOSTNAME;
        !           142:        return (kern_sysctl(&name, 1, 0, 0, uap->hostname,
        !           143:            uap->len));
        !           144: }
        !           145: 
        !           146: struct ogetdomainname_args {
        !           147:                char    *domainname;
        !           148:                int     len;
        !           149: };
        !           150: /* ARGSUSED */
        !           151: int
        !           152: ogetdomainname(p, uap, retval)
        !           153: struct proc *p;
        !           154: register struct ogetdomainname_args *uap;
        !           155: register_t *retval;
        !           156: {
        !           157:        int name;
        !           158:        
        !           159:        name = KERN_DOMAINNAME;
        !           160:        return (kern_sysctl(&name, 1, uap->domainname,
        !           161:            &uap->len, 0, 0));
        !           162: }
        !           163: 
        !           164: struct osetdomainname_args {
        !           165:                char    *domainname;
        !           166:                u_int   len;
        !           167: };
        !           168: /* ARGSUSED */
        !           169: int
        !           170: osetdomainname(p, uap, retval)
        !           171: struct proc *p;
        !           172: register struct osetdomainname_args *uap;
        !           173: register_t *retval;
        !           174: {
        !           175:        int name;
        !           176:        int error;
        !           177: 
        !           178:        if (error = suser(p->p_ucred, &p->p_acflag))
        !           179:                return (error);
        !           180:        name = KERN_DOMAINNAME;
        !           181:        return (kern_sysctl(&name, 1, 0, 0, uap->domainname,
        !           182:            uap->len));
        !           183: }
        !           184: #endif /* COMPAT_43 */
        !           185: 
        !           186: struct reboot_args {
        !           187:                int     opt;
        !           188:                char    *command;
        !           189: };
        !           190: 
        !           191: reboot(p, uap, retval)
        !           192: struct proc *p;
        !           193: register struct reboot_args *uap;
        !           194: register_t *retval;
        !           195: {
        !           196:        char command[64];
        !           197:        int error;
        !           198: 
        !           199:        command[0] = '\0';
        !           200: 
        !           201:        if (error = suser(p->p_cred->pc_ucred, &p->p_acflag))
        !           202:                return(error);  
        !           203:        
        !           204:        if (uap->opt & RB_COMMAND)
        !           205:                error = copyinstr(uap->command,
        !           206:                                        command, sizeof(command), 0);
        !           207:        if (!error)
        !           208:                boot(RB_BOOT, uap->opt, command);
        !           209:        return(error);
        !           210: }
        !           211: 

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