1 files changed, 93 insertions, 0 deletions
diff --git a/src/link.c b/src/link.c
new file mode 100644
index 0000000..b79f52e
--- /dev/null
+++ b/src/link.c
@@ -0,0 +1,93 @@
+/* link utility for GNU.
+   Copyright (C) 2001-2020 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 <https://www.gnu.org/licenses/>.  */
+
+/* Written by Michael Stone */
+
+/* Implementation overview:
+
+   Simply call the system 'link' function */
+
+#include <config.h>
+#include <stdio.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_gnu_standard_options_only (argc, argv, PROGRAM_NAME, PACKAGE_NAME,
+                                   Version, true, usage, AUTHORS,
+                                   (char const *) NULL);
+
+  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;
+}