usr/src/cmd/zonename/zonename.c

   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 (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #pragma ident   "%Z%%M% %I%     %E% SMI"
  27
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <locale.h>
  31 #include <libintl.h>
  32 #include <zone.h>
  33 #include <libzonecfg.h>
  34 #include <dlfcn.h>
  35 #include <sys/zone.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 /*
  42  * -t prints "shared" vs. "exclusive"
  43  */
  44 int
  45 main(int argc, char *argv[])
  46 {
  47         zoneid_t zoneid;
  48         char zonename[ZONENAME_MAX];
  49         FILE *fp;
  50         int arg;
  51         boolean_t stacktype = B_FALSE;
  52
  53         (void) setlocale(LC_ALL, "");
  54         (void) textdomain(TEXT_DOMAIN);
  55
  56         opterr = 0;
  57         while ((arg = getopt(argc, argv, "t")) != EOF) {
  58                 switch (arg) {
  59                 case 't':
  60                         stacktype = B_TRUE;
  61                         break;
  62                 }
  63         }
  64
  65         zoneid = getzoneid();
  66
  67         if (stacktype) {
  68                 ushort_t flags;
  69
  70                 if (zone_getattr(zoneid, ZONE_ATTR_FLAGS, &flags,
  71                     sizeof (flags)) < 0) {
  72                         perror("could not determine zone IP type");
  73                         exit(1);
  74                 }
  75                 if (flags & ZF_NET_EXCL)
  76                         (void) puts("exclusive");
  77                 else
  78                         (void) puts("shared");
  79                 return (0);
  80         }
  81
  82         if (getzonenamebyid(zoneid, zonename, sizeof (zonename)) < 0) {
  83                 (void) fputs(gettext("could not determine zone name\n"),
  84                     stderr);
  85                 return (1);
  86         }
  87
  88         /*
  89          * The use of dlopen here is a bit ugly, but it allows zonename to
  90          * function properly before /usr is mounted.  On such a system, scratch
  91          * zones don't exist, so no translation is necessary.
  92          */
  93         if (dlopen("libzonecfg.so.1", RTLD_NOW | RTLD_GLOBAL) != NULL &&
  94             zonecfg_is_scratch(zonename) &&
  95             (fp = zonecfg_open_scratch("", B_FALSE)) != NULL) {
  96                 (void) zonecfg_reverse_scratch(fp, zonename, zonename,
  97                     sizeof (zonename), NULL, 0);
  98                 zonecfg_close_scratch(fp);
  99         }
 100         (void) puts(zonename);
 101         return (0);
 102 }