/*- * Copyright (c) 2015 Allan Jude * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include "fstyp.h" int fstyp_zfs(FILE *fp, char *label, size_t labelsize) { vdev_label_t *zpool_ptr = NULL; vdev_label_t zpool_label; char *buf = zpool_label.vl_vdev_phys.vp_nvlist; char *zpool_name = NULL; size_t buflen = sizeof (zpool_label.vl_vdev_phys.vp_nvlist); nvlist_t *config = NULL; zpool_ptr = (vdev_label_t *)read_buf(fp, 0, sizeof(zpool_label)); if (zpool_ptr == NULL) return (1); zpool_label = *zpool_ptr; if (nvlist_unpack(buf, buflen, &config, 0) != 0) goto zfserr; if (nvlist_lookup_string(config, "name", &zpool_name) != 0) goto zfserr; strlcpy(label, zpool_name, labelsize); nvlist_free(config); free(zpool_ptr); return (0); zfserr: nvlist_free(config); free(zpool_ptr); return (1); }