Merge from vendor branch BZIP:
[dragonfly.git] / lib / libc / gen / uname.c
CommitLineData
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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.
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32 *
33 * @(#)uname.c 8.1 (Berkeley) 1/4/94
34 * $FreeBSD: src/lib/libc/gen/uname.c,v 1.7 1999/08/27 23:59:06 peter Exp $
0955fd91 35 * $DragonFly: src/lib/libc/gen/uname.c,v 1.5 2007/01/19 07:23:40 dillon Exp $
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36 */
37
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38#include <sys/param.h>
39#include <sys/sysctl.h>
40#include <sys/utsname.h>
41#include <errno.h>
42
43int
0f52d283 44uname(struct utsname *name)
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45{
46 int mib[2], rval;
47 size_t len;
48 char *p;
0955fd91 49 int oerrno;
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50
51 rval = 0;
52
53 mib[0] = CTL_KERN;
54 mib[1] = KERN_OSTYPE;
55 len = sizeof(name->sysname);
56 oerrno = errno;
57 if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1) {
58 if(errno == ENOMEM)
59 errno = oerrno;
60 else
61 rval = -1;
62 }
63 name->sysname[sizeof(name->sysname) - 1] = '\0';
64
65 mib[0] = CTL_KERN;
66 mib[1] = KERN_HOSTNAME;
67 len = sizeof(name->nodename);
68 oerrno = errno;
69 if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1) {
70 if(errno == ENOMEM)
71 errno = oerrno;
72 else
73 rval = -1;
74 }
75 name->nodename[sizeof(name->nodename) - 1] = '\0';
76
77 mib[0] = CTL_KERN;
78 mib[1] = KERN_OSRELEASE;
79 len = sizeof(name->release);
80 oerrno = errno;
81 if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1) {
82 if(errno == ENOMEM)
83 errno = oerrno;
84 else
85 rval = -1;
86 }
87 name->release[sizeof(name->release) - 1] = '\0';
88
89 /* The version may have newlines in it, turn them into spaces. */
90 mib[0] = CTL_KERN;
91 mib[1] = KERN_VERSION;
92 len = sizeof(name->version);
93 oerrno = errno;
94 if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1) {
95 if (errno == ENOMEM)
96 errno = oerrno;
97 else
98 rval = -1;
99 }
100 name->version[sizeof(name->version) - 1] = '\0';
101 for (p = name->version; len--; ++p) {
102 if (*p == '\n' || *p == '\t') {
103 if (len > 1)
104 *p = ' ';
105 else
106 *p = '\0';
107 }
108 }
109
08efc527 110 oerrno = errno;
0955fd91 111 mib[1] = HW_MACHINE;
984263bc 112 mib[0] = CTL_HW;
984263bc 113 len = sizeof(name->machine);
984263bc 114 if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1) {
08efc527 115 if (errno == ENOMEM) {
984263bc 116 errno = oerrno;
08efc527 117 } else {
984263bc 118 rval = -1;
08efc527 119 }
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120 }
121 name->machine[sizeof(name->machine) - 1] = '\0';
122 return (rval);
123}