global: convert indentation-TABs to spaces
[coreutils.git] / src / unlink.c
blob47cbfb2e314f37209579abe6b92e1b2b7306358a
1 /* unlink utility for GNU.
2 Copyright (C) 2001, 2002, 2004, 2007-2009 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 Michael Stone */
19 /* Implementation overview:
21 Simply call the system 'unlink' function */
23 #include <config.h>
24 #include <stdio.h>
25 #include <getopt.h>
26 #include <sys/types.h>
28 #include "system.h"
29 #include "error.h"
30 #include "long-options.h"
31 #include "quote.h"
33 /* The official name of this program (e.g., no `g' prefix). */
34 #define PROGRAM_NAME "unlink"
36 #define AUTHORS proper_name ("Michael Stone")
38 void
39 usage (int status)
41 if (status != EXIT_SUCCESS)
42 fprintf (stderr, _("Try `%s --help' for more information.\n"),
43 program_name);
44 else
46 printf (_("\
47 Usage: %s FILE\n\
48 or: %s OPTION\n"), program_name, program_name);
49 fputs (_("Call the unlink function to remove the specified FILE.\n\n"),
50 stdout);
51 fputs (HELP_OPTION_DESCRIPTION, stdout);
52 fputs (VERSION_OPTION_DESCRIPTION, stdout);
53 emit_bug_reporting_address ();
55 exit (status);
58 int
59 main (int argc, char **argv)
61 initialize_main (&argc, &argv);
62 set_program_name (argv[0]);
63 setlocale (LC_ALL, "");
64 bindtextdomain (PACKAGE, LOCALEDIR);
65 textdomain (PACKAGE);
67 atexit (close_stdout);
69 parse_long_options (argc, argv, PROGRAM_NAME, PACKAGE_NAME, Version,
70 usage, AUTHORS, (char const *) NULL);
71 if (getopt_long (argc, argv, "", NULL, NULL) != -1)
72 usage (EXIT_FAILURE);
74 if (argc < optind + 1)
76 error (0, 0, _("missing operand"));
77 usage (EXIT_FAILURE);
80 if (optind + 1 < argc)
82 error (0, 0, _("extra operand %s"), quote (argv[optind + 1]));
83 usage (EXIT_FAILURE);
86 if (unlink (argv[optind]) != 0)
87 error (EXIT_FAILURE, errno, _("cannot unlink %s"), quote (argv[optind]));
89 exit (EXIT_SUCCESS);