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+/* $OpenBSD: getopt.h,v 1.2 2008/06/26 05:42:04 ray Exp $ */
+/* $NetBSD: getopt.h,v 1.4 2000/07/07 10:43:54 ad Exp $ */
+/* $FreeBSD: head/include/getopt.h 203963 2010-02-16 19:28:10Z imp $ */
+
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2000 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Dieter Baron and Thomas Klausner.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef COMPAT_GETOPT_H
+#define COMPAT_GETOPT_H
+
+/*
+ * GNU-like getopt_long()/getopt_long_only() with 4.4BSD optreset extension.
+ */
+#define no_argument 0
+#define required_argument 1
+#define optional_argument 2
+
+struct option {
+ /* name of long option */
+ const char *name;
+ /*
+ * one of no_argument, required_argument, and optional_argument:
+ * whether option takes an argument
+ */
+ int has_arg;
+ /* if not NULL, set *flag to val when option found */
+ int *flag;
+ /* if flag not NULL, value to set *flag to; else return value */
+ int val;
+};
+
+sudo_dso_public int sudo_getopt_long(int, char * const *, const char *,
+ const struct option *, int *);
+#undef getopt_long
+#define getopt_long(_a, _b, _c, _d, _e) \
+ sudo_getopt_long((_a), (_b), (_c), (_d), (_e))
+
+sudo_dso_public int sudo_getopt_long_only(int, char * const *, const char *,
+ const struct option *, int *);
+#undef getopt_long_only
+#define getopt_long_only(_a, _b, _c, _d, _e) \
+ sudo_getopt_long_only((_a), (_b), (_c), (_d), (_e))
+#if 0
+sudo_dso_public int sudo_getopt(int, char * const [], const char *);
+#undef getopt
+#define getopt(_a, _b, _c) sudo_getopt((_a), (_b), (_c))
+#endif
+
+extern char *optarg; /* getopt(3) external variables */
+extern int opterr;
+extern int optind;
+extern int optopt;
+extern int optreset;
+
+#endif /* !COMPAT_GETOPT_H */