1/*-
2 * Copyright (c) 1993
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#ifndef lint
35static char copyright[] =
36"@(#) Copyright (c) 1993\n\
37 The Regents of the University of California. All rights reserved.\n";
38#endif /* not lint */
39
40#ifndef lint
41static char sccsid[] = "@(#)uname.c 8.1 (Berkeley) 6/6/93";
42#endif /* not lint */
43
44#include <sys/param.h>
45#include <sys/sysctl.h>
46
47#include <err.h>
48#include <stdio.h>
49#include <stdlib.h>
50
51void usage __P((void));
52
53int
54main(argc, argv)
55 int argc;
56 char *argv[];
57{
58#define MFLAG 0x01
59#define NFLAG 0x02
60#define RFLAG 0x04
61#define SFLAG 0x08
62#define VFLAG 0x10
63 u_int flags;
64 int ch, mib[2];
65 size_t len, tlen;
66 char *p, *prefix, buf[1024];
67
68 flags = 0;
69 while ((ch = getopt(argc, argv, "amnrsv")) != EOF)
70 switch(ch) {
71 case 'a':
72 flags |= (MFLAG | NFLAG | RFLAG | SFLAG | VFLAG);
73 break;
74 case 'm':
75 flags |= MFLAG;
76 break;
77 case 'n':
78 flags |= NFLAG;
79 break;
80 case 'r':
81 flags |= RFLAG;
82 break;
83 case 's':
84 flags |= SFLAG;
85 break;
86 case 'v':
87 flags |= VFLAG;
88 break;
89 case '?':
90 default:
91 usage();
92 }
93
94 argc -= optind;
95 argv += optind;
96
97 if (argc)
98 usage();
99
100 if (!flags)
101 flags |= SFLAG;
102
103 prefix = "";
104
105 if (flags & SFLAG) {
106 mib[0] = CTL_KERN;
107 mib[1] = KERN_OSTYPE;
108 len = sizeof(buf);
109 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1)
110 err(1, "sysctl");
111 (void)printf("%s%.*s", prefix, len, buf);
112 prefix = " ";
113 }
114 if (flags & NFLAG) {
115 mib[0] = CTL_KERN;
116 mib[1] = KERN_HOSTNAME;
117 len = sizeof(buf);
118 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1)
119 err(1, "sysctl");
120 (void)printf("%s%.*s", prefix, len, buf);
121 prefix = " ";
122 }
123 if (flags & RFLAG) {
124 mib[0] = CTL_KERN;
125 mib[1] = KERN_OSRELEASE;
126 len = sizeof(buf);
127 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1)
128 err(1, "sysctl");
129 (void)printf("%s%.*s", prefix, len, buf);
130 prefix = " ";
131 }
132 if (flags & VFLAG) {
133 mib[0] = CTL_KERN;
134 mib[1] = KERN_VERSION;
135 len = sizeof(buf);
136 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1)
137 err(1, "sysctl");
138 for (p = buf, tlen = len; tlen--; ++p)
139 if (*p == '\n' || *p == '\t')
140 *p = ' ';
141 (void)printf("%s%.*s", prefix, len, buf);
142 prefix = " ";
143 }
144 if (flags & MFLAG) {
145 mib[0] = CTL_HW;
146 mib[1] = HW_MACHINE;
147 len = sizeof(buf);
148 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1)
149 err(1, "sysctl");
150 (void)printf("%s%.*s", prefix, len, buf);
151 prefix = " ";
152 }
153 (void)printf("\n");
154 exit (0);
155}
156
157void
158usage()
159{
160 (void)fprintf(stderr, "usage: uname [-amnrsv]\n");
161 exit(1);
162}