/* * 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 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #include <errno.h> #include <libgen.h> #include <libintl.h> #include <stdio.h> #include <stdlib.h> #include <strings.h> #include "zpool_util.h" /* * Utility function to guarantee malloc() success. */ void * safe_malloc(size_t size) { void *data; if ((data = calloc(1, size)) == NULL) { (void) fprintf(stderr, "internal error: out of memory\n"); exit(1); } return (data); } /* * Display an out of memory error message and abort the current program. */ void zpool_no_memory(void) { assert(errno == ENOMEM); (void) fprintf(stderr, gettext("internal error: out of memory\n")); exit(1); } /* * Return the number of logs in supplied nvlist */ uint_t num_logs(nvlist_t *nv) { uint_t nlogs = 0; uint_t c, children; nvlist_t **child; if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, &child, &children) != 0) return (0); for (c = 0; c < children; c++) { uint64_t is_log = B_FALSE; (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG, &is_log); if (is_log) nlogs++; } return (nlogs); }