1/*
2 * *****************************************************************************
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 *
6 * Copyright (c) 2018-2021 Gavin D. Howard and contributors.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 *
11 * * Redistributions of source code must retain the above copyright notice, this
12 *   list of conditions and the following disclaimer.
13 *
14 * * Redistributions in binary form must reproduce the above copyright notice,
15 *   this list of conditions and the following disclaimer in the documentation
16 *   and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 *
30 * *****************************************************************************
31 *
32 * Adapted from https://github.com/skeeto/optparse
33 *
34 * *****************************************************************************
35 *
36 * Definitions for getopt_long() replacement.
37 *
38 */
39
40#ifndef BC_OPT_H
41#define BC_OPT_H
42
43#include <stdbool.h>
44
45typedef struct BcOpt {
46	char **argv;
47	size_t optind;
48	int optopt;
49	int subopt;
50	char *optarg;
51} BcOpt;
52
53typedef enum BcOptType {
54	BC_OPT_NONE,
55	BC_OPT_REQUIRED,
56	BC_OPT_BC_ONLY,
57	BC_OPT_DC_ONLY,
58} BcOptType;
59
60typedef struct BcOptLong {
61	const char *name;
62	BcOptType type;
63	int val;
64} BcOptLong;
65
66void bc_opt_init(BcOpt *o, char **argv);
67
68int bc_opt_parse(BcOpt *o, const BcOptLong *longopts);
69
70#define BC_OPT_ISDASHDASH(a) \
71	((a) != NULL && (a)[0] == '-' && (a)[1] == '-' && (a)[2] == '\0')
72
73#define BC_OPT_ISSHORTOPT(a) \
74	((a) != NULL && (a)[0] == '-' && (a)[1] != '-' && (a)[1] != '\0')
75
76#define BC_OPT_ISLONGOPT(a) \
77	((a) != NULL && (a)[0] == '-' && (a)[1] == '-' && (a)[2] != '\0')
78
79#endif // BC_OPT_H
80