| 1 | /* link utility for GNU.
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| 2 | Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc.
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| 3 |
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| 4 | This program is free software; you can redistribute it and/or modify
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| 5 | it under the terms of the GNU General Public License as published by
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| 6 | the Free Software Foundation; either version 2, or (at your option)
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| 7 | any later version.
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| 8 |
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| 9 | This program is distributed in the hope that it will be useful,
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 12 | GNU General Public License for more details.
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| 13 |
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| 14 | You should have received a copy of the GNU General Public License
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| 15 | along with this program; if not, write to the Free Software Foundation,
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| 16 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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| 17 |
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| 18 | /* Written by Michael Stone */
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| 19 |
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| 20 | /* Implementation overview:
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| 21 |
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| 22 | Simply call the system 'link' function */
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| 23 |
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| 24 | #include <config.h>
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| 25 | #include <stdio.h>
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| 26 | #include <getopt.h>
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| 27 | #include <sys/types.h>
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| 28 | #include <assert.h>
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| 29 |
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| 30 | #include "system.h"
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| 31 | #include "error.h"
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| 32 | #include "long-options.h"
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| 33 | #include "quote.h"
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| 34 |
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| 35 | /* The official name of this program (e.g., no `g' prefix). */
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| 36 | #define PROGRAM_NAME "link"
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| 37 |
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| 38 | #define AUTHORS "Michael Stone"
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| 39 |
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| 40 | /* Name this program was run with. */
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| 41 | char *program_name;
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| 42 |
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| 43 | void
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| 44 | usage (int status)
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| 45 | {
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| 46 | if (status != EXIT_SUCCESS)
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| 47 | fprintf (stderr, _("Try `%s --help' for more information.\n"),
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| 48 | program_name);
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| 49 | else
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| 50 | {
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| 51 | printf (_("\
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| 52 | Usage: %s FILE1 FILE2\n\
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| 53 | or: %s OPTION\n"), program_name, program_name);
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| 54 | fputs (_("Call the link function to create a link named FILE2\
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| 55 | to an existing FILE1.\n\n"),
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| 56 | stdout);
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| 57 | fputs (HELP_OPTION_DESCRIPTION, stdout);
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| 58 | fputs (VERSION_OPTION_DESCRIPTION, stdout);
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| 59 | printf (_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
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| 60 | }
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| 61 | exit (status);
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| 62 | }
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| 63 |
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| 64 | int
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| 65 | main (int argc, char **argv)
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| 66 | {
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| 67 | initialize_main (&argc, &argv);
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| 68 | program_name = argv[0];
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| 69 | setlocale (LC_ALL, "");
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| 70 | bindtextdomain (PACKAGE, LOCALEDIR);
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| 71 | textdomain (PACKAGE);
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| 72 |
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| 73 | atexit (close_stdout);
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| 74 |
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| 75 | parse_long_options (argc, argv, PROGRAM_NAME, GNU_PACKAGE, VERSION,
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| 76 | usage, AUTHORS, (char const *) NULL);
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| 77 | if (getopt_long (argc, argv, "", NULL, NULL) != -1)
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| 78 | usage (EXIT_FAILURE);
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| 79 |
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| 80 | if (argc < optind + 2)
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| 81 | {
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| 82 | if (argc < optind + 1)
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| 83 | error (0, 0, _("missing operand"));
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| 84 | else
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| 85 | error (0, 0, _("missing operand after %s"), quote (argv[optind]));
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| 86 | usage (EXIT_FAILURE);
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| 87 | }
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| 88 |
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| 89 | if (optind + 2 < argc)
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| 90 | {
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| 91 | error (0, 0, _("extra operand %s"), quote (argv[optind + 2]));
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| 92 | usage (EXIT_FAILURE);
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| 93 | }
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| 94 |
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| 95 | if (link (argv[optind], argv[optind + 1]) != 0)
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| 96 | error (EXIT_FAILURE, errno, _("cannot create link %s to %s"),
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| 97 | quote_n (0, argv[optind + 1]), quote_n (1, argv[optind]));
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| 98 |
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| 99 | exit (EXIT_SUCCESS);
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| 100 | }
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