freebsd-src/usr.sbin/fstyp/zfs.c
Warner Losh 4d65a7c695 usr.sbin: Automated cleanup of cdefs and other formatting
Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by:		Netflix
2023-11-26 22:24:01 -07:00

73 lines
2.4 KiB
C

/*-
* Copyright (c) 2015 Allan Jude <allanjude@FreeBSD.org>
* Copyright (c) 2015 Xin LI <delphij@FreeBSD.org>
*
* 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 <sys/types.h>
#include <sys/time.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <libnvpair.h>
#include <sys/vdev_impl.h>
#include "fstyp.h"
int
fstyp_zfs(FILE *fp, char *label, size_t labelsize)
{
vdev_label_t *vdev_label = NULL;
vdev_phys_t *vdev_phys;
const char *zpool_name = NULL;
nvlist_t *config = NULL;
int err = 0;
/*
* Read in the first ZFS vdev label ("L0"), located at the beginning
* of the vdev and extract the pool name from it.
*
* TODO: the checksum of label should be validated.
*/
vdev_label = (vdev_label_t *)read_buf(fp, 0, sizeof(*vdev_label));
if (vdev_label == NULL)
return (1);
vdev_phys = &(vdev_label->vl_vdev_phys);
if ((nvlist_unpack(vdev_phys->vp_nvlist, sizeof(vdev_phys->vp_nvlist),
&config, 0)) == 0 &&
(nvlist_lookup_string(config, "name", &zpool_name) == 0)) {
strlcpy(label, zpool_name, labelsize);
} else
err = 1;
nvlist_free(config);
free(vdev_label);
return (err);
}