1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
$* $OpenBSD: disknames.c,v 1.3 2007/02/14 23:02:03 krw Exp $ */
/*
* Copyright (c) 2007 Kenneth R. Westerback <krw@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/uio.h>
#include <unistd.h>
#include <stdlib.h>
int
main(int argc, char *argv[])
{
struct iovec iov[2];
int mib[2];
size_t len;
char *p;
mib[0] = CTL_HW;
mib[1] = HW_DISKNAMES;
if (sysctl(mib, 2, NULL, &len, NULL, 0) != -1)
if ((p = malloc(len)) != NULL)
if (sysctl(mib, 2, p, &len, NULL, 0) != -1) {
iov[0].iov_base = p;
iov[0].iov_len = len;
iov[1].iov_base = "\n";
iov[1].iov_len = 1;
writev(STDOUT_FILENO, iov, 2);
exit(0);
}
exit(1);
}
|
