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[coreutils.git] / src / hostid.c
blob5aa31a8436538145a7bd6e4abcff3191d11cf875
1 /* print the hexadecimal identifier for the current host
2 Copyright (C) 1997, 1999 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 2, or (at your option)
7 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, write to the Free Software Foundation,
16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
18 /* Written by Jim Meyering. */
20 #include <config.h>
21 #include <stdio.h>
22 #include <sys/types.h>
23 #if HAVE_UNISTD_H
24 # include <unistd.h>
25 #endif
27 #include "system.h"
28 #include "closeout.h"
29 #include "long-options.h"
30 #include "error.h"
32 /* The name this program was run with, for error messages. */
33 char *program_name;
35 void
36 usage (int status)
38 if (status != 0)
39 fprintf (stderr, _("Try `%s --help' for more information.\n"),
40 program_name);
41 else
43 printf (_("Usage: %s [-v]\n"), program_name);
44 printf (_("\
45 Print the numeric identifier (in hexadecimal) for the current host.\n\
46 \n\
47 --help display this help and exit\n\
48 --version output version information and exit\n\
49 \n\
50 "));
51 puts (_("\nReport bugs to <bug-sh-utils@gnu.org>."));
53 exit (status);
56 int
57 main (int argc, char **argv)
59 long int id;
61 program_name = argv[0];
62 setlocale (LC_ALL, "");
63 bindtextdomain (PACKAGE, LOCALEDIR);
64 textdomain (PACKAGE);
66 parse_long_options (argc, argv, "hostid", GNU_PACKAGE, VERSION, usage);
68 if (argc > 1)
70 error (0, 0, _("too many arguments"));
71 usage (1);
74 id = gethostid ();
75 printf ("%lx\n", id);
77 close_stdout ();
79 exit (EXIT_SUCCESS);