xref: /illumos-gate/usr/src/cmd/clinfo/clinfo.c (revision 66582b606a8194f7f3ba5b3a3a6dca5b0d346361)
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 /*
24  * Copyright 2016 Nexenta Systems, Inc.  All rights reserved.
25  */
26 
27 /*
28  * Copyright (c) 1998 by Sun Microsystems, Inc.
29  * All rights reserved.
30  */
31 
32 #include <stdlib.h>
33 #include <stdio.h>
34 #include <unistd.h>
35 #include <string.h>
36 #include <errno.h>
37 #include <locale.h>
38 #include <sys/cladm.h>
39 
40 #if !defined(TEXT_DOMAIN)		/* should be defined by cc -D */
41 #define	TEXT_DOMAIN 	"SYS_TEST"	/* Use this only if it wasn't */
42 #endif
43 
44 static char *cmdname;
45 
46 static void errmsg(char *);
47 static void usage();
48 
49 int
50 main(int argc, char **argv)
51 {
52 	int c, bootflags;
53 	nodeid_t nid, hid;
54 	char *cp = "";
55 
56 	(void) setlocale(LC_ALL, "");
57 	(void) textdomain(TEXT_DOMAIN);
58 
59 	cmdname = argv[0];	/* put actual command name in messages */
60 
61 	if (_cladm(CL_INITIALIZE, CL_GET_BOOTFLAG, &bootflags) != 0) {
62 		errmsg("_cladm(CL_INITIALIZE, CL_GET_BOOTFLAG)");
63 		return (1);
64 	}
65 
66 	while ((c = getopt(argc, argv, "bnh")) != EOF) {
67 		switch (c) {
68 		case 'b':	/* print boot flags */
69 			(void) printf("%s%u\n", cp, bootflags);
70 			break;
71 
72 		case 'n':	/* print our node number */
73 			if (_cladm(CL_CONFIG, CL_NODEID, &nid) != 0) {
74 				errmsg("node is not configured as part of a "
75 				    "cluster");
76 				return (1);
77 			}
78 			(void) printf("%s%u\n", cp, nid);
79 			break;
80 
81 		case 'h':	/* print the highest node number */
82 			if (_cladm(CL_CONFIG, CL_HIGHEST_NODEID, &hid) != 0) {
83 				errmsg("node is not booted as part of a "
84 				    "cluster");
85 				return (1);
86 			}
87 			(void) printf("%s%u\n", cp, hid);
88 			break;
89 
90 		default:
91 			usage();
92 			return (1);
93 		}
94 		cp = " ";
95 	}
96 
97 	/*
98 	 * Return exit status of one (error) if not booted as a cluster.
99 	 */
100 	return (bootflags & CLUSTER_BOOTED ? 0 : 1);
101 }
102 
103 static void
104 errmsg(char *msg)
105 {
106 	int save_error;
107 
108 	save_error = errno;		/* in case fprintf changes errno */
109 	(void) fprintf(stderr, "%s: ", cmdname);
110 	errno = save_error;
111 	perror(msg);
112 }
113 
114 static void
115 usage()
116 {
117 	(void) fprintf(stderr, "%s: %s -[bnh]\n", gettext("usage"), cmdname);
118 }
119