1 files changed, 80 insertions, 0 deletions
diff --git a/src/true.c b/src/true.c
new file mode 100644
index 0000000..f65a922
--- /dev/null
+++ b/src/true.c
@@ -0,0 +1,80 @@
+/* Exit with a status code indicating success.
+   Copyright (C) 1999-2023 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/>.  */
+
+#include <config.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include "system.h"
+
+/* Act like "true" by default; false.c overrides this.  */
+#ifndef EXIT_STATUS
+# define EXIT_STATUS EXIT_SUCCESS
+#endif
+
+#if EXIT_STATUS == EXIT_SUCCESS
+# define PROGRAM_NAME "true"
+#else
+# define PROGRAM_NAME "false"
+#endif
+
+#define AUTHORS proper_name ("Jim Meyering")
+
+void
+usage (int status)
+{
+  printf (_("\
+Usage: %s [ignored command line arguments]\n\
+  or:  %s OPTION\n\
+"),
+          program_name, program_name);
+  printf ("%s\n\n",
+          _(EXIT_STATUS == EXIT_SUCCESS
+            ? N_("Exit with a status code indicating success.")
+            : N_("Exit with a status code indicating failure.")));
+  fputs (HELP_OPTION_DESCRIPTION, stdout);
+  fputs (VERSION_OPTION_DESCRIPTION, stdout);
+  printf (USAGE_BUILTIN_WARNING, PROGRAM_NAME);
+  emit_ancillary_info (PROGRAM_NAME);
+  exit (status);
+}
+
+int
+main (int argc, char **argv)
+{
+  /* Recognize --help or --version only if it's the only command-line
+     argument.  */
+  if (argc == 2)
+    {
+      initialize_main (&argc, &argv);
+      set_program_name (argv[0]);
+      setlocale (LC_ALL, "");
+      bindtextdomain (PACKAGE, LOCALEDIR);
+      textdomain (PACKAGE);
+
+      /* Note true(1) will return EXIT_FAILURE in the
+         edge case where writes fail with GNU specific options.  */
+      atexit (close_stdout);
+
+      if (STREQ (argv[1], "--help"))
+        usage (EXIT_STATUS);
+
+      if (STREQ (argv[1], "--version"))
+        version_etc (stdout, PROGRAM_NAME, PACKAGE_NAME, Version, AUTHORS,
+                     (char *) nullptr);
+    }
+
+  return EXIT_STATUS;
+}