Contents of /trunk/mkinitrd-magellan/busybox/coreutils/uname.c
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Sat Sep 1 22:45:15 2007 UTC (17 years ago) by niro
File MIME type: text/plain
File size: 2375 byte(s)
Sat Sep 1 22:45:15 2007 UTC (17 years ago) by niro
File MIME type: text/plain
File size: 2375 byte(s)
-import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
1 | /* vi: set sw=4 ts=4: */ |
2 | /* uname -- print system information |
3 | * Copyright (C) 1989-1999 Free Software Foundation, Inc. |
4 | * |
5 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
6 | */ |
7 | |
8 | /* BB_AUDIT SUSv3 compliant */ |
9 | /* http://www.opengroup.org/onlinepubs/007904975/utilities/uname.html */ |
10 | |
11 | /* Option Example |
12 | |
13 | -s, --sysname SunOS |
14 | -n, --nodename rocky8 |
15 | -r, --release 4.0 |
16 | -v, --version |
17 | -m, --machine sun |
18 | -a, --all SunOS rocky8 4.0 sun |
19 | |
20 | The default behavior is equivalent to `-s'. |
21 | |
22 | David MacKenzie <djm@gnu.ai.mit.edu> */ |
23 | |
24 | /* Busyboxed by Erik Andersen */ |
25 | |
26 | /* Further size reductions by Glenn McGrath and Manuel Novoa III. */ |
27 | |
28 | /* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) |
29 | * |
30 | * Now does proper error checking on i/o. Plus some further space savings. |
31 | */ |
32 | |
33 | #include <stdio.h> |
34 | #include <stdlib.h> |
35 | #include <stddef.h> |
36 | #include <string.h> |
37 | #include <unistd.h> |
38 | #include <sys/types.h> |
39 | #include <sys/utsname.h> |
40 | #include "busybox.h" |
41 | |
42 | typedef struct { |
43 | struct utsname name; |
44 | char processor[8]; /* for "unknown" */ |
45 | } uname_info_t; |
46 | |
47 | static const char options[] = "snrvmpa"; |
48 | static const unsigned short int utsname_offset[] = { |
49 | offsetof(uname_info_t,name.sysname), |
50 | offsetof(uname_info_t,name.nodename), |
51 | offsetof(uname_info_t,name.release), |
52 | offsetof(uname_info_t,name.version), |
53 | offsetof(uname_info_t,name.machine), |
54 | offsetof(uname_info_t,processor) |
55 | }; |
56 | |
57 | int uname_main(int argc, char **argv) |
58 | { |
59 | uname_info_t uname_info; |
60 | #if defined(__sparc__) && defined(__linux__) |
61 | char *fake_sparc = getenv("FAKE_SPARC"); |
62 | #endif |
63 | const unsigned short int *delta; |
64 | char toprint; |
65 | |
66 | toprint = getopt32(argc, argv, options); |
67 | |
68 | if (argc != optind) { |
69 | bb_show_usage(); |
70 | } |
71 | |
72 | if (toprint & (1 << 6)) { |
73 | toprint = 0x3f; |
74 | } |
75 | |
76 | if (toprint == 0) { |
77 | toprint = 1; /* sysname */ |
78 | } |
79 | |
80 | if (uname(&uname_info.name) == -1) { |
81 | bb_error_msg_and_die("cannot get system name"); |
82 | } |
83 | |
84 | #if defined(__sparc__) && defined(__linux__) |
85 | if ((fake_sparc != NULL) |
86 | && ((fake_sparc[0] == 'y') |
87 | || (fake_sparc[0] == 'Y'))) { |
88 | strcpy(uname_info.name.machine, "sparc"); |
89 | } |
90 | #endif |
91 | |
92 | strcpy(uname_info.processor, "unknown"); |
93 | |
94 | delta = utsname_offset; |
95 | do { |
96 | if (toprint & 1) { |
97 | printf(((char *)(&uname_info)) + *delta); |
98 | if (toprint > 1) { |
99 | putchar(' '); |
100 | } |
101 | } |
102 | ++delta; |
103 | } while (toprint >>= 1); |
104 | putchar('\n'); |
105 | |
106 | fflush_stdout_and_exit(EXIT_SUCCESS); |
107 | } |