1 /* Test of system information.
2 Copyright (C) 2009 Free Software Foundation, Inc.
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.
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.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 /* Written by Bruno Haible <bruno@clisp.org>, 2009. */
21 #include <sys/utsname.h>
27 #define ASSERT(expr) \
32 fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
40 /* This program can be called with no arguments, then it performs a unit
41 test. Or it can be called with 1 argument, then it prints the uname
42 contents to standard output. */
45 main (int argc, char *argv[])
49 memset (&buf, '?', sizeof (buf));
51 ASSERT (uname (&buf) >= 0);
53 /* Verify that every field's value is NUL terminated. */
54 ASSERT (strlen (buf.sysname) < sizeof (buf.sysname));
55 ASSERT (strlen (buf.nodename) < sizeof (buf.nodename));
56 ASSERT (strlen (buf.release) < sizeof (buf.release));
57 ASSERT (strlen (buf.version) < sizeof (buf.version));
58 ASSERT (strlen (buf.machine) < sizeof (buf.machine));
62 /* Show the result. */
64 printf ("uname -n = nodename = %s\n", buf.nodename);
65 printf ("uname -s = sysname = %s\n", buf.sysname);
66 printf ("uname -r = release = %s\n", buf.release);
67 printf ("uname -v = version = %s\n", buf.version);
68 printf ("uname -m = machine or cpu = %s\n", buf.machine);