1 | /* vi: set sw=4 ts=4: */
|
---|
2 | /* uname -- print system information
|
---|
3 | Copyright (C) 1989-1999 Free Software Foundation, Inc.
|
---|
4 |
|
---|
5 | This program is free software; you can redistribute it and/or modify
|
---|
6 | it under the terms of the GNU General Public License as published by
|
---|
7 | the Free Software Foundation; either version 2, or (at your option)
|
---|
8 | any later version.
|
---|
9 |
|
---|
10 | This program is distributed in the hope that it will be useful,
|
---|
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
13 | GNU General Public License for more details.
|
---|
14 |
|
---|
15 | You should have received a copy of the GNU General Public License
|
---|
16 | along with this program; if not, write to the Free Software Foundation,
|
---|
17 | Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
---|
18 |
|
---|
19 | /* BB_AUDIT SUSv3 compliant */
|
---|
20 | /* http://www.opengroup.org/onlinepubs/007904975/utilities/uname.html */
|
---|
21 |
|
---|
22 | /* Option Example
|
---|
23 |
|
---|
24 | -s, --sysname SunOS
|
---|
25 | -n, --nodename rocky8
|
---|
26 | -r, --release 4.0
|
---|
27 | -v, --version
|
---|
28 | -m, --machine sun
|
---|
29 | -a, --all SunOS rocky8 4.0 sun
|
---|
30 |
|
---|
31 | The default behavior is equivalent to `-s'.
|
---|
32 |
|
---|
33 | David MacKenzie <djm@gnu.ai.mit.edu> */
|
---|
34 |
|
---|
35 | /* Busyboxed by Erik Andersen */
|
---|
36 |
|
---|
37 | /* Further size reductions by Glenn McGrath and Manuel Novoa III. */
|
---|
38 |
|
---|
39 | /* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
|
---|
40 | *
|
---|
41 | * Now does proper error checking on i/o. Plus some further space savings.
|
---|
42 | */
|
---|
43 |
|
---|
44 | #include <stdio.h>
|
---|
45 | #include <stdlib.h>
|
---|
46 | #include <stddef.h>
|
---|
47 | #include <string.h>
|
---|
48 | #include <unistd.h>
|
---|
49 | #include <sys/types.h>
|
---|
50 | #include <sys/utsname.h>
|
---|
51 | #include "busybox.h"
|
---|
52 |
|
---|
53 | typedef struct {
|
---|
54 | struct utsname name;
|
---|
55 | char processor[8]; /* for "unknown" */
|
---|
56 | } uname_info_t;
|
---|
57 |
|
---|
58 | static const char options[] = "snrvmpa";
|
---|
59 | static const unsigned short int utsname_offset[] = {
|
---|
60 | offsetof(uname_info_t,name.sysname),
|
---|
61 | offsetof(uname_info_t,name.nodename),
|
---|
62 | offsetof(uname_info_t,name.release),
|
---|
63 | offsetof(uname_info_t,name.version),
|
---|
64 | offsetof(uname_info_t,name.machine),
|
---|
65 | offsetof(uname_info_t,processor)
|
---|
66 | };
|
---|
67 |
|
---|
68 | int uname_main(int argc, char **argv)
|
---|
69 | {
|
---|
70 | uname_info_t uname_info;
|
---|
71 | #if defined(__sparc__) && defined(__linux__)
|
---|
72 | char *fake_sparc = getenv("FAKE_SPARC");
|
---|
73 | #endif
|
---|
74 | const unsigned short int *delta;
|
---|
75 | char toprint;
|
---|
76 |
|
---|
77 | toprint = bb_getopt_ulflags(argc, argv, options);
|
---|
78 |
|
---|
79 | if (argc != optind) {
|
---|
80 | bb_show_usage();
|
---|
81 | }
|
---|
82 |
|
---|
83 | if (toprint & (1 << 6)) {
|
---|
84 | toprint = 0x3f;
|
---|
85 | }
|
---|
86 |
|
---|
87 | if (toprint == 0) {
|
---|
88 | toprint = 1; /* sysname */
|
---|
89 | }
|
---|
90 |
|
---|
91 | if (uname(&uname_info.name) == -1) {
|
---|
92 | bb_error_msg_and_die("cannot get system name");
|
---|
93 | }
|
---|
94 |
|
---|
95 | #if defined(__sparc__) && defined(__linux__)
|
---|
96 | if ((fake_sparc != NULL)
|
---|
97 | && ((fake_sparc[0] == 'y')
|
---|
98 | || (fake_sparc[0] == 'Y'))) {
|
---|
99 | strcpy(uname_info.name.machine, "sparc");
|
---|
100 | }
|
---|
101 | #endif
|
---|
102 |
|
---|
103 | strcpy(uname_info.processor, "unknown");
|
---|
104 |
|
---|
105 | delta=utsname_offset;
|
---|
106 | do {
|
---|
107 | if (toprint & 1) {
|
---|
108 | bb_printf(((char *)(&uname_info)) + *delta);
|
---|
109 | if (toprint > 1) {
|
---|
110 | putchar(' ');
|
---|
111 | }
|
---|
112 | }
|
---|
113 | ++delta;
|
---|
114 | } while (toprint >>= 1);
|
---|
115 | putchar('\n');
|
---|
116 |
|
---|
117 | bb_fflush_stdout_and_exit(EXIT_SUCCESS);
|
---|
118 | }
|
---|