1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1997, by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 31 /* Portions Copyright(c) 1988, Sun Microsystems Inc. */ 32 /* All Rights Reserved */ 33 34 /*LINTLIBRARY*/ 35 36 #include <sys/types.h> 37 #include <sys/uadmin.h> 38 #include <unistd.h> 39 #include <errno.h> 40 41 /* 42 * Not all BSD's semantics are supported 43 * including RB_SINGLE, RB_RB_DUMP, RB_STRING 44 */ 45 46 /* 47 * BSD reboot.h 48 */ 49 #define RB_AUTOBOOT 0 /* flags for system auto-booting itself */ 50 51 #define RB_ASKNAME 0x001 /* ask for file name to reboot from */ 52 #define RB_SINGLE 0x002 /* reboot to single user only */ 53 #define RB_NOSYNC 0x004 /* dont sync before reboot */ 54 #define RB_HALT 0x008 /* don't reboot, just halt */ 55 #define RB_INITNAME 0x010 /* name given for /etc/init */ 56 #define RB_NOBOOTRC 0x020 /* don't run /etc/rc.boot */ 57 #define RB_DEBUG 0x040 /* being run under debugger */ 58 #define RB_DUMP 0x080 /* dump system core */ 59 #define RB_WRITABLE 0x100 /* mount root read/write */ 60 #define RB_STRING 0x200 /* pass boot args to prom monitor */ 61 62 /*ARGSUSED*/ 63 int 64 reboot(int howto, char *bootargs) 65 { 66 int cmd; 67 int fcn; 68 int mdep = 0; 69 70 if (getuid() != 0) { 71 errno = EPERM; 72 return (-1); 73 } 74 75 if (howto & RB_HALT) { 76 cmd = A_SHUTDOWN; 77 fcn = AD_HALT; 78 } else if (howto & RB_ASKNAME) { 79 cmd = A_SHUTDOWN; 80 fcn = AD_IBOOT; 81 } else { /* assume RB_AUTOBOOT */ 82 cmd = A_SHUTDOWN; 83 fcn = AD_BOOT; 84 } 85 86 /* return something to be consistent with the original prototype */ 87 return (uadmin(cmd, fcn, mdep)); 88 /* most cases, we are gone and code does not reach here */ 89 } 90