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/*
* Replacement implementation of getopt.
*
* This is a replacement implementation for getopt based on the my_getopt
* distribution by Benjamin Sittler. Only the getopt interface is included,
* since remctl doesn't use GNU long options, and the code has been rearranged
* and reworked somewhat to fit with my coding style.
*
* The canonical version of this file is maintained in the rra-c-util package,
* which can be found at <https://www.eyrie.org/~eagle/software/rra-c-util/>.
*
* Copyright 2008 Russ Allbery <eagle@eyrie.org>
* Copyright 1997, 2000-2002 Benjamin Sittler
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* SPDX-License-Identifier: MIT
*/
#ifndef PORTABLE_GETOPT_H
#define PORTABLE_GETOPT_H 1
#include <config.h>
#include <portable/macros.h>
/* Skip this entire file if we already have a getopt. */
#if !HAVE_GETOPT
BEGIN_DECLS
/* Default to a hidden visibility for all portability functions. */
#pragma GCC visibility push(hidden)
/*
* The current element in the argv array or, if getopt returns -1, the index
* of the first non-option argument.
*/
extern int optind;
/* Set to zero to suppress error messages to stderr for unknown options. */
extern int opterr;
/* Holds the option character seen for unrecognized options. */
extern int optopt;
/* The argument to an option. */
extern char *optarg;
/* The primary interface. Call repeatedly to return each option. */
int getopt(int argc, char *argv[], const char *opts);
/* Undo default visibility change. */
#pragma GCC visibility pop
END_DECLS
#endif /* !HAVE_GETOPT */
#endif /* !PORTABLE_GETOPT_H */
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