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/* link utility for GNU.
Copyright (C) 2001-2016 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 Michael Stone */
/* Implementation overview:
Simply call the system 'link' function */
#include <config.h>
#include <stdio.h>
#include <getopt.h>
#include <sys/types.h>
#include "system.h"
#include "die.h"
#include "error.h"
#include "long-options.h"
#include "quote.h"
/* The official name of this program (e.g., no 'g' prefix). */
#define PROGRAM_NAME "link"
#define AUTHORS proper_name ("Michael Stone")
void
usage (int status)
{
if (status != EXIT_SUCCESS)
emit_try_help ();
else
{
printf (_("\
Usage: %s FILE1 FILE2\n\
or: %s OPTION\n"), program_name, program_name);
fputs (_("Call the link function to create a link named FILE2\
to an existing FILE1.\n\n"),
stdout);
fputs (HELP_OPTION_DESCRIPTION, stdout);
fputs (VERSION_OPTION_DESCRIPTION, stdout);
emit_ancillary_info (PROGRAM_NAME);
}
exit (status);
}
int
main (int argc, char **argv)
{
initialize_main (&argc, &argv);
set_program_name (argv[0]);
setlocale (LC_ALL, "");
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
atexit (close_stdout);
parse_long_options (argc, argv, PROGRAM_NAME, PACKAGE_NAME, Version,
usage, AUTHORS, (char const *) NULL);
if (getopt_long (argc, argv, "", NULL, NULL) != -1)
usage (EXIT_FAILURE);
if (argc < optind + 2)
{
if (argc < optind + 1)
error (0, 0, _("missing operand"));
else
error (0, 0, _("missing operand after %s"), quote (argv[optind]));
usage (EXIT_FAILURE);
}
if (optind + 2 < argc)
{
error (0, 0, _("extra operand %s"), quote (argv[optind + 2]));
usage (EXIT_FAILURE);
}
if (link (argv[optind], argv[optind + 1]) != 0)
die (EXIT_FAILURE, errno, _("cannot create link %s to %s"),
quoteaf_n (0, argv[optind + 1]), quoteaf_n (1, argv[optind]));
return EXIT_SUCCESS;
}
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