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#pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.2	*/
35
36/*LINTLIBRARY*/
37
38#include <sys/types.h>
39#include <sys/uadmin.h>
40#include <unistd.h>
41#include <errno.h>
42
43/*
44 * Not all BSD's semantics are supported
45 * including RB_SINGLE, RB_RB_DUMP, RB_STRING
46 */
47
48/*
49 * BSD reboot.h
50 */
51#define	RB_AUTOBOOT	0	/* flags for system auto-booting itself */
52
53#define	RB_ASKNAME	0x001   /* ask for file name to reboot from */
54#define	RB_SINGLE	0x002   /* reboot to single user only */
55#define	RB_NOSYNC	0x004   /* dont sync before reboot */
56#define	RB_HALT		0x008   /* don't reboot, just halt */
57#define	RB_INITNAME	0x010   /* name given for /etc/init */
58#define	RB_NOBOOTRC	0x020   /* don't run /etc/rc.boot */
59#define	RB_DEBUG	0x040   /* being run under debugger */
60#define	RB_DUMP		0x080   /* dump system core */
61#define	RB_WRITABLE	0x100   /* mount root read/write */
62#define	RB_STRING	0x200   /* pass boot args to prom monitor */
63
64/*ARGSUSED*/
65int
66reboot(int howto, char *bootargs)
67{
68	int	cmd;
69	int	fcn;
70	int	mdep = 0;
71
72	if (getuid() != 0) {
73		errno = EPERM;
74		return (-1);
75	}
76
77	if (howto & RB_HALT) {
78		cmd = A_SHUTDOWN;
79		fcn = AD_HALT;
80	} else if (howto & RB_ASKNAME) {
81		cmd = A_SHUTDOWN;
82		fcn = AD_IBOOT;
83	} else {		/* assume RB_AUTOBOOT */
84		cmd = A_SHUTDOWN;
85		fcn = AD_BOOT;
86	}
87
88	/* return something to be consistent with the original prototype */
89	return (uadmin(cmd, fcn, mdep));
90		/* most cases, we are gone and code does not reach here */
91}
92