1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/* $OpenBSD: uname.c,v 1.13 2015/01/16 06:40:13 deraadt Exp $ */
/*
* Copyright (c) 1994 Winning Strategies, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Winning Strategies, Inc.
* 4. The name of Winning Strategies, Inc. may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/param.h> /* MACHINE_ARCH */
#include <stdio.h>
#include <stdlib.h>
#include <locale.h>
#include <unistd.h>
#include <sys/utsname.h>
#include <err.h>
static void usage(void);
#define PRINT_SYSNAME 0x01
#define PRINT_NODENAME 0x02
#define PRINT_RELEASE 0x04
#define PRINT_VERSION 0x08
#define PRINT_MACHINE 0x10
#define PRINT_ALL 0x1f
#define PRINT_MACHINE_ARCH 0x20
int
main(int argc, char *argv[])
{
struct utsname u;
int c;
int space = 0;
int print_mask = 0;
setlocale(LC_ALL, "");
while ((c = getopt(argc, argv, "amnrsvp")) != -1 ) {
switch (c) {
case 'a':
print_mask |= PRINT_ALL;
break;
case 'm':
print_mask |= PRINT_MACHINE;
break;
case 'n':
print_mask |= PRINT_NODENAME;
break;
case 'r':
print_mask |= PRINT_RELEASE;
break;
case 's':
print_mask |= PRINT_SYSNAME;
break;
case 'v':
print_mask |= PRINT_VERSION;
break;
case 'p':
print_mask |= PRINT_MACHINE_ARCH;
break;
default:
usage();
/* NOTREACHED */
}
}
if (optind != argc) {
usage();
/* NOTREACHED */
}
if (!print_mask) {
print_mask = PRINT_SYSNAME;
}
if (uname(&u)) {
err(1, NULL);
/* NOTREACHED */
}
if (print_mask & PRINT_SYSNAME) {
space++;
fputs(u.sysname, stdout);
}
if (print_mask & PRINT_NODENAME) {
if (space++) putchar(' ');
fputs(u.nodename, stdout);
}
if (print_mask & PRINT_RELEASE) {
if (space++) putchar(' ');
fputs(u.release, stdout);
}
if (print_mask & PRINT_VERSION) {
if (space++) putchar(' ');
fputs(u.version, stdout);
}
if (print_mask & PRINT_MACHINE) {
if (space++) putchar(' ');
fputs(u.machine, stdout);
}
if (print_mask & PRINT_MACHINE_ARCH) {
if (space++) putchar(' ');
fputs(MACHINE_ARCH, stdout);
}
putchar('\n');
exit(0);
/* NOTREACHED */
}
static void
usage(void)
{
fprintf(stderr, "usage: uname [-amnprsv]\n");
exit(1);
}
|
