xref: /illumos-gate/usr/src/cmd/zonename/zonename.c (revision 9dd828891378a0a6a509ab601b4c5c20ca5562ec)
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 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <locale.h>
32 #include <libintl.h>
33 #include <zone.h>
34 #include <libzonecfg.h>
35 #include <dlfcn.h>
36 
37 #if !defined(TEXT_DOMAIN)		/* should be defined by cc -D */
38 #define	TEXT_DOMAIN	"SYS_TEST"	/* Use this only if it wasn't */
39 #endif
40 
41 int
42 main(void)
43 {
44 	char zonename[ZONENAME_MAX];
45 	FILE *fp;
46 
47 	(void) setlocale(LC_ALL, "");
48 	(void) textdomain(TEXT_DOMAIN);
49 
50 	if (getzonenamebyid(getzoneid(), zonename, sizeof (zonename)) < 0) {
51 		(void) fputs(gettext("could not determine zone name\n"),
52 		    stderr);
53 		return (1);
54 	}
55 
56 	/*
57 	 * The use of dlopen here is a bit ugly, but it allows zonename to
58 	 * function properly before /usr is mounted.  On such a system, scratch
59 	 * zones don't exist, so no translation is necessary.
60 	 */
61 	if (dlopen("libzonecfg.so.1", RTLD_NOW | RTLD_GLOBAL) != NULL &&
62 	    zonecfg_is_scratch(zonename) &&
63 	    (fp = zonecfg_open_scratch("", B_FALSE)) != NULL) {
64 		(void) zonecfg_reverse_scratch(fp, zonename, zonename,
65 		    sizeof (zonename), NULL, 0);
66 		zonecfg_close_scratch(fp);
67 	}
68 	(void) puts(zonename);
69 	return (0);
70 }
71