1 /* Test of system information.
2 Copyright (C) 2009-2018 Free Software Foundation, Inc.
3
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
16
17 /* Written by Bruno Haible <bruno@clisp.org>, 2009. */
18
19 #include <config.h>
20
21 #include <sys/utsname.h>
22
23 #include "signature.h"
24 SIGNATURE_CHECK (uname, int, (struct utsname *));
25
26 #include <stdio.h>
27 #include <string.h>
28
29 #include "macros.h"
30
31
32 /* This program can be called with no arguments, then it performs a unit
33 test. Or it can be called with 1 argument, then it prints the uname
34 contents to standard output. */
35
36 int
main(int argc,char * argv[])37 main (int argc, char *argv[])
38 {
39 struct utsname buf;
40
41 memset (&buf, '?', sizeof (buf));
42
43 ASSERT (uname (&buf) >= 0);
44
45 /* Verify that every field's value is NUL terminated. */
46 ASSERT (strlen (buf.sysname) < sizeof (buf.sysname));
47 ASSERT (strlen (buf.nodename) < sizeof (buf.nodename));
48 ASSERT (strlen (buf.release) < sizeof (buf.release));
49 ASSERT (strlen (buf.version) < sizeof (buf.version));
50 ASSERT (strlen (buf.machine) < sizeof (buf.machine));
51
52 if (argc > 1)
53 {
54 /* Show the result. */
55
56 printf ("uname -n = nodename = %s\n", buf.nodename);
57 printf ("uname -s = sysname = %s\n", buf.sysname);
58 printf ("uname -r = release = %s\n", buf.release);
59 printf ("uname -v = version = %s\n", buf.version);
60 printf ("uname -m = machine or cpu = %s\n", buf.machine);
61 }
62
63 return 0;
64 }
65