1789Sahrens /*
2789Sahrens * CDDL HEADER START
3789Sahrens *
4789Sahrens * The contents of this file are subject to the terms of the
52856Snd150628 * Common Development and Distribution License (the "License").
62856Snd150628 * You may not use this file except in compliance with the License.
7789Sahrens *
8789Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9789Sahrens * or http://www.opensolaris.org/os/licensing.
10789Sahrens * See the License for the specific language governing permissions
11789Sahrens * and limitations under the License.
12789Sahrens *
13789Sahrens * When distributing Covered Code, include this CDDL HEADER in each
14789Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15789Sahrens * If applicable, add the following below this CDDL HEADER, with the
16789Sahrens * fields enclosed by brackets "[]" replaced with your own identifying
17789Sahrens * information: Portions Copyright [yyyy] [name of copyright owner]
18789Sahrens *
19789Sahrens * CDDL HEADER END
20789Sahrens */
21789Sahrens /*
22*10265SKrishnendu.Sadhukhan@Sun.COM * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
23789Sahrens * Use is subject to license terms.
24789Sahrens */
25789Sahrens
26789Sahrens #include <errno.h>
27789Sahrens #include <libgen.h>
28789Sahrens #include <libintl.h>
29789Sahrens #include <stdio.h>
30789Sahrens #include <stdlib.h>
31789Sahrens #include <strings.h>
32789Sahrens
33789Sahrens #include "zpool_util.h"
34789Sahrens
35789Sahrens /*
36789Sahrens * Utility function to guarantee malloc() success.
37789Sahrens */
38789Sahrens void *
safe_malloc(size_t size)39789Sahrens safe_malloc(size_t size)
40789Sahrens {
41789Sahrens void *data;
42789Sahrens
43789Sahrens if ((data = calloc(1, size)) == NULL) {
44789Sahrens (void) fprintf(stderr, "internal error: out of memory\n");
45789Sahrens exit(1);
46789Sahrens }
47789Sahrens
48789Sahrens return (data);
49789Sahrens }
50789Sahrens
51789Sahrens /*
52789Sahrens * Display an out of memory error message and abort the current program.
53789Sahrens */
54789Sahrens void
zpool_no_memory(void)552856Snd150628 zpool_no_memory(void)
56789Sahrens {
57789Sahrens assert(errno == ENOMEM);
58789Sahrens (void) fprintf(stderr,
59789Sahrens gettext("internal error: out of memory\n"));
60789Sahrens exit(1);
61789Sahrens }
624527Sperrin
634527Sperrin /*
644527Sperrin * Return the number of logs in supplied nvlist
654527Sperrin */
664527Sperrin uint_t
num_logs(nvlist_t * nv)674527Sperrin num_logs(nvlist_t *nv)
684527Sperrin {
694527Sperrin uint_t nlogs = 0;
704527Sperrin uint_t c, children;
714527Sperrin nvlist_t **child;
724527Sperrin
734527Sperrin if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
744527Sperrin &child, &children) != 0)
754527Sperrin return (0);
764527Sperrin
774527Sperrin for (c = 0; c < children; c++) {
784527Sperrin uint64_t is_log = B_FALSE;
794527Sperrin
804527Sperrin (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
814527Sperrin &is_log);
824527Sperrin if (is_log)
834527Sperrin nlogs++;
844527Sperrin }
854527Sperrin return (nlogs);
864527Sperrin }
87