1/*	$OpenBSD: dl_uname.c,v 1.4 2022/01/08 06:49:41 guenther Exp $ */
2/*
3 * Copyright (c) 1994
4 *	The Regents of the University of California.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the University nor the names of its contributors
15 *    may be used to endorse or promote products derived from this software
16 *    without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include <sys/types.h>
32#include <sys/sysctl.h>
33#include <sys/utsname.h>
34
35#include "syscall.h"
36#include "util.h"
37
38/*
39 * This file was copied from libc/gen/uname.c and modified for ld.so's
40 * syscall method which returns -errno. Also KERN_OSVERSION is not retrieved
41 * since ld.so doesn't need it.
42 */
43
44int
45_dl_uname(struct utsname *name)
46{
47	const int otmib[2] = { CTL_KERN, KERN_OSTYPE };
48	const int ormib[2] = { CTL_KERN, KERN_OSRELEASE };
49	const int hmmib[2] = { CTL_HW, HW_MACHINE };
50	int rval;
51	size_t len;
52
53	rval = 0;
54
55	len = sizeof(name->sysname);
56	if (_dl_sysctl(otmib, 2, &name->sysname, &len, NULL, 0) < 0)
57		rval = -1;
58
59	len = sizeof(name->release);
60	if (_dl_sysctl(ormib, 2, &name->release, &len, NULL, 0) < 0)
61		rval = -1;
62
63	len = sizeof(name->machine);
64	if (_dl_sysctl(hmmib, 2, &name->machine, &len, NULL, 0) < 0)
65		rval = -1;
66	return (rval);
67}
68