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/* Test of system information.
Copyright (C) 2009 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2009. */
#include <config.h>
#include <sys/utsname.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define ASSERT(expr) \
do \
{ \
if (!(expr)) \
{ \
fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
fflush (stderr); \
abort (); \
} \
} \
while (0)
/* This program can be called with no arguments, then it performs a unit
test. Or it can be called with 1 argument, then it prints the uname
contents to standard output. */
int
main (int argc, char *argv[])
{
struct utsname buf;
memset (&buf, '?', sizeof (buf));
ASSERT (uname (&buf) >= 0);
/* Verify that every field's value is NUL terminated. */
ASSERT (strlen (buf.sysname) < sizeof (buf.sysname));
ASSERT (strlen (buf.nodename) < sizeof (buf.nodename));
ASSERT (strlen (buf.release) < sizeof (buf.release));
ASSERT (strlen (buf.version) < sizeof (buf.version));
ASSERT (strlen (buf.machine) < sizeof (buf.machine));
if (argc > 1)
{
/* Show the result. */
printf ("uname -n = nodename = %s\n", buf.nodename);
printf ("uname -s = sysname = %s\n", buf.sysname);
printf ("uname -r = release = %s\n", buf.release);
printf ("uname -v = version = %s\n", buf.version);
printf ("uname -m = machine or cpu = %s\n", buf.machine);
}
return 0;
}
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