uname.c revision 1573 
1/*-
2 * Copyright (c) 1994
3 *	The Regents of the University of California.  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 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#if defined(LIBC_SCCS) && !defined(lint)
35static char sccsid[] = "@(#)uname.c	8.1 (Berkeley) 1/4/94";
36#endif /* LIBC_SCCS and not lint */
37
38#include <sys/param.h>
39#include <sys/sysctl.h>
40#include <sys/utsname.h>
41
42int
43uname(name)
44	struct utsname *name;
45{
46	int mib[2], rval;
47	size_t len;
48	char *p;
49
50	rval = 0;
51
52	mib[0] = CTL_KERN;
53	mib[1] = KERN_OSTYPE;
54	len = sizeof(name->sysname);
55	if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1)
56		rval = -1;
57
58	mib[0] = CTL_KERN;
59	mib[1] = KERN_HOSTNAME;
60	len = sizeof(name->nodename);
61	if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1)
62		rval = -1;
63
64	mib[0] = CTL_KERN;
65	mib[1] = KERN_OSRELEASE;
66	len = sizeof(name->release);
67	if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1)
68		rval = -1;
69
70	/* The version may have newlines in it, turn them into spaces. */
71	mib[0] = CTL_KERN;
72	mib[1] = KERN_VERSION;
73	len = sizeof(name->version);
74	if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1)
75		rval = -1;
76	else
77		for (p = name->version; len--; ++p)
78			if (*p == '\n' || *p == '\t')
79				if (len > 1)
80					*p = ' ';
81				else
82					*p = '\0';
83
84	mib[0] = CTL_HW;
85	mib[1] = HW_MACHINE;
86	len = sizeof(name->machine);
87	if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1)
88		rval = -1;
89	return (rval);
90}
91