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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
/*
* uname - print system information
*
* usage: uname [-amnrsv]
*
*/
/*
Copyright (C) 1999-2009 Free Software Foundation, Inc.
This file is part of GNU Bash.
Bash is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Bash is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Bash. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <stdio.h>
#include "bashtypes.h"
#if defined (HAVE_UNAME)
# include <sys/utsname.h>
#else
struct utsname {
char sysname[32];
char nodename[32];
char release[32];
char version[32];
char machine[32];
};
#endif
#include <errno.h>
#include "builtins.h"
#include "shell.h"
#include "bashgetopt.h"
#include "common.h"
#define FLAG_SYSNAME 0x01 /* -s */
#define FLAG_NODENAME 0x02 /* -n */
#define FLAG_RELEASE 0x04 /* -r */
#define FLAG_VERSION 0x08 /* -v */
#define FLAG_MACHINE 0x10 /* -m, -p */
#define FLAG_ALL 0x1f
#ifndef errno
extern int errno;
#endif
static void uprint();
static int uname_flags;
int
uname_builtin (list)
WORD_LIST *list;
{
int opt, r;
struct utsname uninfo;
uname_flags = 0;
reset_internal_getopt ();
while ((opt = internal_getopt (list, "amnprsv")) != -1)
{
switch (opt)
{
case 'a':
uname_flags |= FLAG_ALL;
break;
case 'm':
case 'p':
uname_flags |= FLAG_MACHINE;
break;
case 'n':
uname_flags |= FLAG_NODENAME;
break;
case 'r':
uname_flags |= FLAG_RELEASE;
break;
case 's':
uname_flags |= FLAG_SYSNAME;
break;
case 'v':
uname_flags |= FLAG_VERSION;
break;
CASE_HELPOPT;
default:
builtin_usage ();
return (EX_USAGE);
}
}
list = loptend;
if (list)
{
builtin_usage ();
return (EX_USAGE);
}
if (uname_flags == 0)
uname_flags = FLAG_SYSNAME;
/* Only ancient systems will not have uname(2). */
#ifdef HAVE_UNAME
if (uname (&uninfo) < 0)
{
builtin_error ("cannot get system name: %s", strerror (errno));
return (EXECUTION_FAILURE);
}
#else
builtin_error ("cannot get system information: uname(2) not available");
return (EXECUTION_FAILURE);
#endif
uprint (FLAG_SYSNAME, uninfo.sysname);
uprint (FLAG_NODENAME, uninfo.nodename);
uprint (FLAG_RELEASE, uninfo.release);
uprint (FLAG_VERSION, uninfo.version);
uprint (FLAG_MACHINE, uninfo.machine);
return (EXECUTION_SUCCESS);
}
static void
uprint (flag, info)
int flag;
char *info;
{
if (uname_flags & flag)
{
uname_flags &= ~flag;
printf ("%s%c", info, uname_flags ? ' ' : '\n');
}
}
char *uname_doc[] = {
"Display system information.",
"",
"Display information about the system hardware and OS.",
(char *)NULL
};
struct builtin uname_struct = {
"uname",
uname_builtin,
BUILTIN_ENABLED,
uname_doc,
"uname [-amnrsv]",
0
};
|
