1 /*
2 * Copyright (c) 2018 Warner Losh <imp@freebd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include <sys/cdefs.h>
28
29 #include <stand.h>
30 #include <stddef.h>
31 #include <sys/disk.h>
32 #include <sys/reboot.h>
33
34 #include "bootstrap.h"
35
36 #include "libzfs.h"
37
38 COMMAND_SET(lszfs, "lszfs", "list child datasets of a zfs dataset",
39 command_lszfs);
40
41 static int
command_lszfs(int argc,char * argv[])42 command_lszfs(int argc, char *argv[])
43 {
44 int err;
45
46 if (argc != 2) {
47 command_errmsg = "a single dataset must be supplied";
48 return (CMD_ERROR);
49 }
50
51 err = zfs_list(argv[1]);
52 if (err != 0) {
53 command_errmsg = strerror(err);
54 return (CMD_ERROR);
55 }
56 return (CMD_OK);
57 }
58
59 uint64_t
ldi_get_size(void * priv)60 ldi_get_size(void *priv)
61 {
62 int fd = (uintptr_t) priv;
63 uint64_t size;
64
65 ioctl(fd, DIOCGMEDIASIZE, &size);
66 return (size);
67 }
68