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