1 /* $NetBSD: uname.c,v 1.11 2011/09/06 18:35:13 joerg Exp $ */
2
3 /*
4 * Copyright (c) 1994 Winning Strategies, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Winning Strategies, Inc.
18 * 4. The name of Winning Strategies, Inc. may not be used to endorse or
19 * promote products derived from this software without specific prior
20 * written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include <sys/cdefs.h>
35 #ifndef lint
36 __RCSID("$NetBSD: uname.c,v 1.11 2011/09/06 18:35:13 joerg Exp $");
37 #endif /* not lint */
38
39 #include <sys/param.h>
40 #include <limits.h>
41 #include <locale.h>
42 #include <stdio.h>
43 #include <stdlib.h>
44 #include <unistd.h>
45 #include <err.h>
46
47 #include <sys/sysctl.h>
48 #include <sys/utsname.h>
49
50 __dead static void usage(void);
51
52 /* Note that PRINT_MACHINE_ARCH is excluded from PRINT_ALL! */
53 #define PRINT_SYSNAME 0x01
54 #define PRINT_NODENAME 0x02
55 #define PRINT_RELEASE 0x04
56 #define PRINT_VERSION 0x08
57 #define PRINT_MACHINE 0x10
58 #define PRINT_MACHINE_ARCH 0x20
59 #define PRINT_ALL \
60 (PRINT_SYSNAME|PRINT_NODENAME|PRINT_RELEASE|PRINT_VERSION|PRINT_MACHINE)
61
62 int
main(int argc,char ** argv)63 main(int argc, char **argv)
64 {
65 struct utsname u;
66 char machine_arch[SYS_NMLN];
67 int c;
68 int space = 0;
69 int print_mask = 0;
70
71 (void)setlocale(LC_ALL, "");
72
73 while ((c = getopt(argc,argv,"amnprsv")) != -1) {
74 switch (c) {
75 case 'a':
76 print_mask |= PRINT_ALL;
77 break;
78 case 'm':
79 print_mask |= PRINT_MACHINE;
80 break;
81 case 'n':
82 print_mask |= PRINT_NODENAME;
83 break;
84 case 'p':
85 print_mask |= PRINT_MACHINE_ARCH;
86 break;
87 case 'r':
88 print_mask |= PRINT_RELEASE;
89 break;
90 case 's':
91 print_mask |= PRINT_SYSNAME;
92 break;
93 case 'v':
94 print_mask |= PRINT_VERSION;
95 break;
96 default:
97 usage();
98 /* NOTREACHED */
99 }
100 }
101
102 if (optind != argc) {
103 usage();
104 /* NOTREACHED */
105 }
106
107 if (!print_mask) {
108 print_mask = PRINT_SYSNAME;
109 }
110
111 if (uname(&u) != 0) {
112 err(EXIT_FAILURE, "uname");
113 /* NOTREACHED */
114 }
115 if (print_mask & PRINT_MACHINE_ARCH) {
116 int mib[2] = { CTL_HW, HW_MACHINE_ARCH };
117 size_t len = sizeof (machine_arch);
118
119 if (sysctl(mib, sizeof (mib) / sizeof (mib[0]), machine_arch,
120 &len, NULL, 0) < 0)
121 err(EXIT_FAILURE, "sysctl");
122 }
123
124 if (print_mask & PRINT_SYSNAME) {
125 space++;
126 fputs(u.sysname, stdout);
127 }
128 if (print_mask & PRINT_NODENAME) {
129 if (space++) putchar(' ');
130 fputs(u.nodename, stdout);
131 }
132 if (print_mask & PRINT_RELEASE) {
133 if (space++) putchar(' ');
134 fputs(u.release, stdout);
135 }
136 if (print_mask & PRINT_VERSION) {
137 if (space++) putchar(' ');
138 fputs(u.version, stdout);
139 }
140 if (print_mask & PRINT_MACHINE) {
141 if (space++) putchar(' ');
142 fputs(u.machine, stdout);
143 }
144 if (print_mask & PRINT_MACHINE_ARCH) {
145 if (space++) putchar(' ');
146 fputs(machine_arch, stdout);
147 }
148 putchar('\n');
149
150 exit(EXIT_SUCCESS);
151 /* NOTREACHED */
152 }
153
154 static void
usage(void)155 usage(void)
156 {
157 fprintf(stderr, "usage: uname [-amnprsv]\n");
158 exit(EXIT_FAILURE);
159 }
160