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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 | /* | |
428870ff | 22 | * Copyright 2009 Sun Microsystems, Inc. All rights reserved. |
34dc7c2f BB |
23 | * Use is subject to license terms. |
24 | */ | |
25 | ||
34dc7c2f BB |
26 | #include <errno.h> |
27 | #include <libgen.h> | |
28 | #include <libintl.h> | |
29 | #include <stdio.h> | |
30 | #include <stdlib.h> | |
31 | #include <strings.h> | |
32 | ||
33 | #include "zpool_util.h" | |
34 | ||
35 | /* | |
36 | * Utility function to guarantee malloc() success. | |
37 | */ | |
38 | void * | |
39 | safe_malloc(size_t size) | |
40 | { | |
41 | void *data; | |
42 | ||
43 | if ((data = calloc(1, size)) == NULL) { | |
44 | (void) fprintf(stderr, "internal error: out of memory\n"); | |
45 | exit(1); | |
46 | } | |
47 | ||
48 | return (data); | |
49 | } | |
50 | ||
34dc7c2f BB |
51 | /* |
52 | * Display an out of memory error message and abort the current program. | |
53 | */ | |
54 | void | |
55 | zpool_no_memory(void) | |
56 | { | |
57 | assert(errno == ENOMEM); | |
58 | (void) fprintf(stderr, | |
59 | gettext("internal error: out of memory\n")); | |
60 | exit(1); | |
61 | } | |
62 | ||
63 | /* | |
64 | * Return the number of logs in supplied nvlist | |
65 | */ | |
66 | uint_t | |
67 | num_logs(nvlist_t *nv) | |
68 | { | |
69 | uint_t nlogs = 0; | |
70 | uint_t c, children; | |
71 | nvlist_t **child; | |
72 | ||
73 | if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, | |
74 | &child, &children) != 0) | |
75 | return (0); | |
76 | ||
77 | for (c = 0; c < children; c++) { | |
78 | uint64_t is_log = B_FALSE; | |
79 | ||
80 | (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG, | |
81 | &is_log); | |
82 | if (is_log) | |
83 | nlogs++; | |
84 | } | |
85 | return (nlogs); | |
86 | } |