1 /* logname -- print user's login name
2 Copyright (C) 90,91,92,93,94,95,96,1997 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)
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. */
20 #include <sys/types.h>
25 /* The name this program was run with. */
28 /* If nonzero, display usage information and exit. */
31 /* If nonzero, print the version on standard output and exit. */
32 static int show_version;
34 static struct option const long_options[] =
36 {"help", no_argument, &show_help, 1},
37 {"version", no_argument, &show_version, 1},
45 fprintf (stderr, _("Try `%s --help' for more information.\n"),
49 printf (_("Usage: %s [OPTION]...\n"), program_name);
51 Print the name of the current user.\n\
53 --help display this help and exit\n\
54 --version output version information and exit\n\
56 puts (_("\nReport bugs to <sh-utils-bugs@gnu.ai.mit.edu>."));
62 main (int argc, char **argv)
67 program_name = argv[0];
68 setlocale (LC_ALL, "");
69 bindtextdomain (PACKAGE, LOCALEDIR);
72 while ((c = getopt_long (argc, argv, "", long_options, NULL)) != -1)
86 printf ("logname (%s) %s\n", GNU_PACKAGE, VERSION);
93 if (argc - optind != 0)
96 /* POSIX.2 requires using getlogin (or equivalent code). */
103 /* POSIX.2 prohibits using a fallback technique. */
104 fprintf (stderr,_("%s: no login name\n"), argv[0]);