uname.c revision 9817 
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)
35/*static char sccsid[] = "From: @(#)uname.c	8.1 (Berkeley) 1/4/94";*/
36static const char rcsid[] =
37	"$Id: uname.c,v 1.3 1995/05/30 05:40:29 rgrimes Exp $";
38#endif /* LIBC_SCCS and not lint */
39
40#include <sys/param.h>
41#include <sys/sysctl.h>
42#include <sys/utsname.h>
43#include <errno.h>
44
45int
46uname(name)
47	struct utsname *name;
48{
49	int mib[2], rval;
50	size_t len;
51	char *p;
52	int oerrno;
53
54	rval = 0;
55
56	mib[0] = CTL_KERN;
57	mib[1] = KERN_OSTYPE;
58	len = sizeof(name->sysname);
59	oerrno = errno;
60	if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1) {
61		if(errno == ENOMEM)
62			errno = oerrno;
63		else
64			rval = -1;
65	}
66	name->sysname[sizeof(name->sysname) - 1] = '\0';
67
68	mib[0] = CTL_KERN;
69	mib[1] = KERN_HOSTNAME;
70	len = sizeof(name->nodename);
71	oerrno = errno;
72	if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1) {
73		if(errno == ENOMEM)
74			errno = oerrno;
75		else
76			rval = -1;
77	}
78	name->nodename[sizeof(name->nodename) - 1] = '\0';
79
80	mib[0] = CTL_KERN;
81	mib[1] = KERN_OSRELEASE;
82	len = sizeof(name->release);
83	oerrno = errno;
84	if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1) {
85		if(errno == ENOMEM)
86			errno = oerrno;
87		else
88			rval = -1;
89	}
90	name->release[sizeof(name->release) - 1] = '\0';
91
92	/* The version may have newlines in it, turn them into spaces. */
93	mib[0] = CTL_KERN;
94	mib[1] = KERN_VERSION;
95	len = sizeof(name->version);
96	oerrno = errno;
97	if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1) {
98		if (errno == ENOMEM)
99			errno = oerrno;
100		else
101			rval = -1;
102	}
103	name->version[sizeof(name->version) - 1] = '\0';
104	for (p = name->version; len--; ++p) {
105		if (*p == '\n' || *p == '\t') {
106			if (len > 1)
107				*p = ' ';
108			else
109				*p = '\0';
110		}
111	}
112
113	mib[0] = CTL_HW;
114	mib[1] = HW_MACHINE;
115	len = sizeof(name->machine);
116	oerrno = errno;
117	if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1) {
118		if (errno == ENOMEM)
119			errno = oerrno;
120		else
121			rval = -1;
122	}
123	name->machine[sizeof(name->machine) - 1] = '\0';
124	return (rval);
125}
126