/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include <stdio.h>
#include <stdlib.h>
#include <locale.h>
#include <libintl.h>
#include <zone.h>
#include <libzonecfg.h>
#include <dlfcn.h>
#include <sys/zone.h>

#if !defined(TEXT_DOMAIN)               /* should be defined by cc -D */
#define TEXT_DOMAIN     "SYS_TEST"      /* Use this only if it wasn't */
#endif

/*
 * -t prints "shared" vs. "exclusive"
 */
int
main(int argc, char *argv[])
{
        zoneid_t zoneid;
        char zonename[ZONENAME_MAX];
        FILE *fp;
        int arg;
        boolean_t stacktype = B_FALSE;

        (void) setlocale(LC_ALL, "");
        (void) textdomain(TEXT_DOMAIN);

        opterr = 0;
        while ((arg = getopt(argc, argv, "t")) != EOF) {
                switch (arg) {
                case 't':
                        stacktype = B_TRUE;
                        break;
                }
        }

        zoneid = getzoneid();

        if (stacktype) {
                ushort_t flags;

                if (zone_getattr(zoneid, ZONE_ATTR_FLAGS, &flags,
                    sizeof (flags)) < 0) {
                        perror("could not determine zone IP type");
                        exit(1);
                }
                if (flags & ZF_NET_EXCL)
                        (void) puts("exclusive");
                else
                        (void) puts("shared");
                return (0);
        }

        if (getzonenamebyid(zoneid, zonename, sizeof (zonename)) < 0) {
                (void) fputs(gettext("could not determine zone name\n"),
                    stderr);
                return (1);
        }

        /*
         * The use of dlopen here is a bit ugly, but it allows zonename to
         * function properly before /usr is mounted.  On such a system, scratch
         * zones don't exist, so no translation is necessary.
         */
        if (dlopen("libzonecfg.so.1", RTLD_NOW | RTLD_GLOBAL) != NULL &&
            zonecfg_is_scratch(zonename) &&
            (fp = zonecfg_open_scratch("", B_FALSE)) != NULL) {
                (void) zonecfg_reverse_scratch(fp, zonename, zonename,
                    sizeof (zonename), NULL, 0);
                zonecfg_close_scratch(fp);
        }
        (void) puts(zonename);
        return (0);
}