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252b5132 | 1 | /* getopt_long and getopt_long_only entry points for GNU getopt. |
2a8ae714 | 2 | Copyright (C) 1987-2018 Free Software Foundation, Inc. |
252b5132 | 3 | |
f6528837 DD |
4 | NOTE: This source is derived from an old version taken from the GNU C |
5 | Library (glibc). | |
252b5132 RH |
6 | |
7 | This program is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU General Public License as published by the | |
9 | Free Software Foundation; either version 2, or (at your option) any | |
10 | later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
979c05d3 | 19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, |
252b5132 RH |
20 | USA. */ |
21 | \f | |
22 | #ifdef HAVE_CONFIG_H | |
23 | #include <config.h> | |
24 | #endif | |
25 | ||
252b5132 RH |
26 | #if !defined __STDC__ || !__STDC__ |
27 | /* This is a separate conditional since some stdc systems | |
28 | reject `defined (const)'. */ | |
29 | #ifndef const | |
30 | #define const | |
31 | #endif | |
32 | #endif | |
33 | ||
34 | #include <stdio.h> | |
35 | ||
2349f557 DD |
36 | #include "getopt.h" |
37 | ||
252b5132 RH |
38 | /* Comment out all this code if we are using the GNU C Library, and are not |
39 | actually compiling the library itself. This code is part of the GNU C | |
40 | Library, but also included in many other GNU distributions. Compiling | |
41 | and linking in this code is a waste when using the GNU C library | |
42 | (especially if it is a shared library). Rather than having every GNU | |
43 | program understand `configure --with-gnu-libc' and omit the object files, | |
44 | it is simpler to just do this in the source for each such file. */ | |
45 | ||
46 | #define GETOPT_INTERFACE_VERSION 2 | |
47 | #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 | |
48 | #include <gnu-versions.h> | |
49 | #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION | |
50 | #define ELIDE_CODE | |
51 | #endif | |
52 | #endif | |
53 | ||
54 | #ifndef ELIDE_CODE | |
55 | ||
56 | ||
57 | /* This needs to come after some library #include | |
58 | to get __GNU_LIBRARY__ defined. */ | |
59 | #ifdef __GNU_LIBRARY__ | |
60 | #include <stdlib.h> | |
61 | #endif | |
62 | ||
63 | #ifndef NULL | |
64 | #define NULL 0 | |
65 | #endif | |
66 | ||
67 | int | |
49b1fae4 DD |
68 | getopt_long (int argc, char *const *argv, const char *options, |
69 | const struct option *long_options, int *opt_index) | |
252b5132 RH |
70 | { |
71 | return _getopt_internal (argc, argv, options, long_options, opt_index, 0); | |
72 | } | |
73 | ||
74 | /* Like getopt_long, but '-' as well as '--' can indicate a long option. | |
75 | If an option that starts with '-' (not '--') doesn't match a long option, | |
76 | but does match a short option, it is parsed as a short option | |
77 | instead. */ | |
78 | ||
79 | int | |
49b1fae4 DD |
80 | getopt_long_only (int argc, char *const *argv, const char *options, |
81 | const struct option *long_options, int *opt_index) | |
252b5132 RH |
82 | { |
83 | return _getopt_internal (argc, argv, options, long_options, opt_index, 1); | |
84 | } | |
85 | ||
86 | ||
87 | #endif /* Not ELIDE_CODE. */ | |
88 | \f | |
89 | #ifdef TEST | |
90 | ||
91 | #include <stdio.h> | |
92 | ||
93 | int | |
49b1fae4 | 94 | main (int argc, char **argv) |
252b5132 RH |
95 | { |
96 | int c; | |
97 | int digit_optind = 0; | |
98 | ||
99 | while (1) | |
100 | { | |
101 | int this_option_optind = optind ? optind : 1; | |
102 | int option_index = 0; | |
103 | static struct option long_options[] = | |
104 | { | |
105 | {"add", 1, 0, 0}, | |
106 | {"append", 0, 0, 0}, | |
107 | {"delete", 1, 0, 0}, | |
108 | {"verbose", 0, 0, 0}, | |
109 | {"create", 0, 0, 0}, | |
110 | {"file", 1, 0, 0}, | |
111 | {0, 0, 0, 0} | |
112 | }; | |
113 | ||
114 | c = getopt_long (argc, argv, "abc:d:0123456789", | |
115 | long_options, &option_index); | |
116 | if (c == -1) | |
117 | break; | |
118 | ||
119 | switch (c) | |
120 | { | |
121 | case 0: | |
122 | printf ("option %s", long_options[option_index].name); | |
123 | if (optarg) | |
124 | printf (" with arg %s", optarg); | |
125 | printf ("\n"); | |
126 | break; | |
127 | ||
128 | case '0': | |
129 | case '1': | |
130 | case '2': | |
131 | case '3': | |
132 | case '4': | |
133 | case '5': | |
134 | case '6': | |
135 | case '7': | |
136 | case '8': | |
137 | case '9': | |
138 | if (digit_optind != 0 && digit_optind != this_option_optind) | |
139 | printf ("digits occur in two different argv-elements.\n"); | |
140 | digit_optind = this_option_optind; | |
141 | printf ("option %c\n", c); | |
142 | break; | |
143 | ||
144 | case 'a': | |
145 | printf ("option a\n"); | |
146 | break; | |
147 | ||
148 | case 'b': | |
149 | printf ("option b\n"); | |
150 | break; | |
151 | ||
152 | case 'c': | |
153 | printf ("option c with value `%s'\n", optarg); | |
154 | break; | |
155 | ||
156 | case 'd': | |
157 | printf ("option d with value `%s'\n", optarg); | |
158 | break; | |
159 | ||
160 | case '?': | |
161 | break; | |
162 | ||
163 | default: | |
164 | printf ("?? getopt returned character code 0%o ??\n", c); | |
165 | } | |
166 | } | |
167 | ||
168 | if (optind < argc) | |
169 | { | |
170 | printf ("non-option ARGV-elements: "); | |
171 | while (optind < argc) | |
172 | printf ("%s ", argv[optind++]); | |
173 | printf ("\n"); | |
174 | } | |
175 | ||
176 | exit (0); | |
177 | } | |
178 | ||
179 | #endif /* TEST */ |