1 /* $OpenBSD: uname.c,v 1.11 2016/08/27 03:55:43 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 #include <stdio.h> /* for NULL */
35
36 /* A slightly modified copy of this file exists in libexec/ld.so */
37
38 int
uname(struct utsname * name)39 uname(struct utsname *name)
40 {
41 int mib[2], rval;
42 size_t len;
43
44 rval = 0;
45
46 mib[0] = CTL_KERN;
47 mib[1] = KERN_OSTYPE;
48 len = sizeof(name->sysname);
49 if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1)
50 rval = -1;
51
52 mib[0] = CTL_KERN;
53 mib[1] = KERN_HOSTNAME;
54 len = sizeof(name->nodename);
55 if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1)
56 rval = -1;
57
58 mib[0] = CTL_KERN;
59 mib[1] = KERN_OSRELEASE;
60 len = sizeof(name->release);
61 if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1)
62 rval = -1;
63
64 mib[0] = CTL_KERN;
65 mib[1] = KERN_OSVERSION;
66 len = sizeof(name->version);
67 if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1) {
68 mib[0] = CTL_KERN;
69 mib[1] = KERN_VERSION;
70 len = sizeof(name->version);
71 if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1)
72 rval = -1;
73 }
74
75 mib[0] = CTL_HW;
76 mib[1] = HW_MACHINE;
77 len = sizeof(name->machine);
78 if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1)
79 rval = -1;
80 return (rval);
81 }
82