source: trunk/coreutils/src/uname.c@ 2746

Last change on this file since 2746 was 2554, checked in by bird, 20 years ago

coretuils-5.94

File size: 8.0 KB
Line 
1/* uname -- print system information
2
3 Copyright 1989, 1992, 1993, 1996, 1997, 1999, 2000, 2001, 2002,
4 2003, 2004, 2005 Free Software Foundation, Inc.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software Foundation,
18 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
19
20/* Written by David MacKenzie <[email protected]> */
21
22#include <config.h>
23#include <stdio.h>
24#include <sys/types.h>
25#include <sys/utsname.h>
26#include <getopt.h>
27
28#if HAVE_SYSINFO && HAVE_SYS_SYSTEMINFO_H
29# include <sys/systeminfo.h>
30#endif
31
32#if HAVE_SYS_SYSCTL_H
33# if HAVE_SYS_PARAM_H
34# include <sys/param.h> /* needed for OpenBSD 3.0 */
35# endif
36# include <sys/sysctl.h>
37# ifdef HW_MODEL
38# ifdef HW_MACHINE_ARCH
39/* E.g., FreeBSD 4.5, NetBSD 1.5.2 */
40# define UNAME_HARDWARE_PLATFORM HW_MODEL
41# define UNAME_PROCESSOR HW_MACHINE_ARCH
42# else
43/* E.g., OpenBSD 3.0 */
44# define UNAME_PROCESSOR HW_MODEL
45# endif
46# endif
47#endif
48
49#ifdef __APPLE__
50# include <mach/machine.h>
51# include <mach-o/arch.h>
52#endif
53
54#include "system.h"
55#include "error.h"
56#include "quote.h"
57
58/* The official name of this program (e.g., no `g' prefix). */
59#define PROGRAM_NAME "uname"
60
61#define AUTHORS "David MacKenzie"
62
63/* Values that are bitwise or'd into `toprint'. */
64/* Kernel name. */
65#define PRINT_KERNEL_NAME 1
66
67/* Node name on a communications network. */
68#define PRINT_NODENAME 2
69
70/* Kernel release. */
71#define PRINT_KERNEL_RELEASE 4
72
73/* Kernel version. */
74#define PRINT_KERNEL_VERSION 8
75
76/* Machine hardware name. */
77#define PRINT_MACHINE 16
78
79/* Processor type. */
80#define PRINT_PROCESSOR 32
81
82/* Hardware platform. */
83#define PRINT_HARDWARE_PLATFORM 64
84
85/* Operating system. */
86#define PRINT_OPERATING_SYSTEM 128
87
88/* The name this program was run with, for error messages. */
89char *program_name;
90
91static struct option const long_options[] =
92{
93 {"all", no_argument, NULL, 'a'},
94 {"kernel-name", no_argument, NULL, 's'},
95 {"sysname", no_argument, NULL, 's'}, /* Obsolescent. */
96 {"nodename", no_argument, NULL, 'n'},
97 {"kernel-release", no_argument, NULL, 'r'},
98 {"release", no_argument, NULL, 'r'}, /* Obsolescent. */
99 {"kernel-version", no_argument, NULL, 'v'},
100 {"machine", no_argument, NULL, 'm'},
101 {"processor", no_argument, NULL, 'p'},
102 {"hardware-platform", no_argument, NULL, 'i'},
103 {"operating-system", no_argument, NULL, 'o'},
104 {GETOPT_HELP_OPTION_DECL},
105 {GETOPT_VERSION_OPTION_DECL},
106 {NULL, 0, NULL, 0}
107};
108
109void
110usage (int status)
111{
112 if (status != EXIT_SUCCESS)
113 fprintf (stderr, _("Try `%s --help' for more information.\n"),
114 program_name);
115 else
116 {
117 printf (_("Usage: %s [OPTION]...\n"), program_name);
118 fputs (_("\
119Print certain system information. With no OPTION, same as -s.\n\
120\n\
121 -a, --all print all information, in the following order,\n\
122 except omit -p and -i if unknown:\n\
123 -s, --kernel-name print the kernel name\n\
124 -n, --nodename print the network node hostname\n\
125 -r, --kernel-release print the kernel release\n\
126"), stdout);
127 fputs (_("\
128 -v, --kernel-version print the kernel version\n\
129 -m, --machine print the machine hardware name\n\
130 -p, --processor print the processor type or \"unknown\"\n\
131 -i, --hardware-platform print the hardware platform or \"unknown\"\n\
132 -o, --operating-system print the operating system\n\
133"), stdout);
134 fputs (HELP_OPTION_DESCRIPTION, stdout);
135 fputs (VERSION_OPTION_DESCRIPTION, stdout);
136 printf (_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
137 }
138 exit (status);
139}
140
141/* Print ELEMENT, preceded by a space if something has already been
142 printed. */
143
144static void
145print_element (char const *element)
146{
147 static bool printed;
148 if (printed)
149 putchar (' ');
150 printed = true;
151 fputs (element, stdout);
152}
153
154int
155main (int argc, char **argv)
156{
157 int c;
158 static char const unknown[] = "unknown";
159
160 /* Mask indicating which elements to print. */
161 unsigned int toprint = 0;
162
163 initialize_main (&argc, &argv);
164 program_name = argv[0];
165 setlocale (LC_ALL, "");
166 bindtextdomain (PACKAGE, LOCALEDIR);
167 textdomain (PACKAGE);
168
169 atexit (close_stdout);
170
171 while ((c = getopt_long (argc, argv, "asnrvmpio", long_options, NULL)) != -1)
172 {
173 switch (c)
174 {
175 case 'a':
176 toprint = UINT_MAX;
177 break;
178
179 case 's':
180 toprint |= PRINT_KERNEL_NAME;
181 break;
182
183 case 'n':
184 toprint |= PRINT_NODENAME;
185 break;
186
187 case 'r':
188 toprint |= PRINT_KERNEL_RELEASE;
189 break;
190
191 case 'v':
192 toprint |= PRINT_KERNEL_VERSION;
193 break;
194
195 case 'm':
196 toprint |= PRINT_MACHINE;
197 break;
198
199 case 'p':
200 toprint |= PRINT_PROCESSOR;
201 break;
202
203 case 'i':
204 toprint |= PRINT_HARDWARE_PLATFORM;
205 break;
206
207 case 'o':
208 toprint |= PRINT_OPERATING_SYSTEM;
209 break;
210
211 case_GETOPT_HELP_CHAR;
212
213 case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);
214
215 default:
216 usage (EXIT_FAILURE);
217 }
218 }
219
220 if (argc != optind)
221 {
222 error (0, 0, _("extra operand %s"), quote (argv[optind]));
223 usage (EXIT_FAILURE);
224 }
225
226 if (toprint == 0)
227 toprint = PRINT_KERNEL_NAME;
228
229 if (toprint
230 & (PRINT_KERNEL_NAME | PRINT_NODENAME | PRINT_KERNEL_RELEASE
231 | PRINT_KERNEL_VERSION | PRINT_MACHINE))
232 {
233 struct utsname name;
234
235 if (uname (&name) == -1)
236 error (EXIT_FAILURE, errno, _("cannot get system name"));
237
238 if (toprint & PRINT_KERNEL_NAME)
239 print_element (name.sysname);
240 if (toprint & PRINT_NODENAME)
241 print_element (name.nodename);
242 if (toprint & PRINT_KERNEL_RELEASE)
243 print_element (name.release);
244 if (toprint & PRINT_KERNEL_VERSION)
245 print_element (name.version);
246 if (toprint & PRINT_MACHINE)
247 print_element (name.machine);
248 }
249
250 if (toprint & PRINT_PROCESSOR)
251 {
252 char const *element = unknown;
253#if HAVE_SYSINFO && defined SI_ARCHITECTURE
254 {
255 static char processor[257];
256 if (0 <= sysinfo (SI_ARCHITECTURE, processor, sizeof processor))
257 element = processor;
258 }
259#endif
260#ifdef UNAME_PROCESSOR
261 if (element == unknown)
262 {
263 static char processor[257];
264 size_t s = sizeof processor;
265 static int mib[] = { CTL_HW, UNAME_PROCESSOR };
266 if (sysctl (mib, 2, processor, &s, 0, 0) >= 0)
267 element = processor;
268
269# ifdef __APPLE__
270 /* This kludge works around a bug in Mac OS X. */
271 if (element == unknown)
272 {
273 cpu_type_t cputype;
274 size_t s = sizeof cputype;
275 NXArchInfo const *ai;
276 if (sysctlbyname ("hw.cputype", &cputype, &s, NULL, 0) == 0
277 && (ai = NXGetArchInfoFromCpuType (cputype,
278 CPU_SUBTYPE_MULTIPLE))
279 != NULL)
280 element = ai->name;
281
282 /* Hack "safely" around the ppc vs. powerpc return value. */
283 if (cputype == CPU_TYPE_POWERPC
284 && strncmp (element, "ppc", 3) == 0)
285 element = "powerpc";
286 }
287# endif
288 }
289#endif
290 if (! (toprint == UINT_MAX && element == unknown))
291 print_element (element);
292 }
293
294 if (toprint & PRINT_HARDWARE_PLATFORM)
295 {
296 char const *element = unknown;
297#if HAVE_SYSINFO && defined SI_PLATFORM
298 {
299 static char hardware_platform[257];
300 if (0 <= sysinfo (SI_PLATFORM,
301 hardware_platform, sizeof hardware_platform))
302 element = hardware_platform;
303 }
304#endif
305#ifdef UNAME_HARDWARE_PLATFORM
306 if (element == unknown)
307 {
308 static char hardware_platform[257];
309 size_t s = sizeof hardware_platform;
310 static int mib[] = { CTL_HW, UNAME_HARDWARE_PLATFORM };
311 if (sysctl (mib, 2, hardware_platform, &s, 0, 0) >= 0)
312 element = hardware_platform;
313 }
314#endif
315 if (! (toprint == UINT_MAX && element == unknown))
316 print_element (element);
317 }
318
319 if (toprint & PRINT_OPERATING_SYSTEM)
320 print_element (HOST_OPERATING_SYSTEM);
321
322 putchar ('\n');
323
324 exit (EXIT_SUCCESS);
325}
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