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
44 int
_dl_uname(struct utsname * name)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