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511676f7 | 1 | /* Internal declarations for getopt. |
f7a9f785 | 2 | Copyright (C) 1989-2016 Free Software Foundation, Inc. |
511676f7 UD |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
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18 | |
19 | #ifndef _GETOPT_INT_H | |
20 | #define _GETOPT_INT_H 1 | |
21 | ||
22 | extern int _getopt_internal (int ___argc, char *const *___argv, | |
23 | const char *__shortopts, | |
24 | const struct option *__longopts, int *__longind, | |
2e6d6bac | 25 | int __long_only, int posixly_correct); |
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26 | |
27 | \f | |
28 | /* Reentrant versions which can handle parsing multiple argument | |
29 | vectors at the same time. */ | |
30 | ||
31 | /* Data type for reentrant functions. */ | |
32 | struct _getopt_data | |
33 | { | |
34 | /* These have exactly the same meaning as the corresponding global | |
35 | variables, except that they are used for the reentrant | |
36 | versions of getopt. */ | |
37 | int optind; | |
38 | int opterr; | |
39 | int optopt; | |
40 | char *optarg; | |
41 | ||
42 | /* Internal members. */ | |
43 | ||
44 | /* True if the internal members have been initialized. */ | |
45 | int __initialized; | |
46 | ||
47 | /* The next char to be scanned in the option-element | |
48 | in which the last option character we returned was found. | |
49 | This allows us to pick up the scan where we left off. | |
50 | ||
51 | If this is zero, or a null string, it means resume the scan | |
52 | by advancing to the next ARGV-element. */ | |
53 | char *__nextchar; | |
54 | ||
55 | /* Describe how to deal with options that follow non-option ARGV-elements. | |
56 | ||
57 | If the caller did not specify anything, | |
58 | the default is REQUIRE_ORDER if the environment variable | |
59 | POSIXLY_CORRECT is defined, PERMUTE otherwise. | |
60 | ||
61 | REQUIRE_ORDER means don't recognize them as options; | |
62 | stop option processing when the first non-option is seen. | |
63 | This is what Unix does. | |
64 | This mode of operation is selected by either setting the environment | |
65 | variable POSIXLY_CORRECT, or using `+' as the first character | |
66 | of the list of option characters. | |
67 | ||
68 | PERMUTE is the default. We permute the contents of ARGV as we | |
69 | scan, so that eventually all the non-options are at the end. | |
70 | This allows options to be given in any order, even with programs | |
71 | that were not written to expect this. | |
72 | ||
73 | RETURN_IN_ORDER is an option available to programs that were | |
74 | written to expect options and other ARGV-elements in any order | |
75 | and that care about the ordering of the two. We describe each | |
76 | non-option ARGV-element as if it were the argument of an option | |
77 | with character code 1. Using `-' as the first character of the | |
78 | list of option characters selects this mode of operation. | |
79 | ||
80 | The special argument `--' forces an end of option-scanning regardless | |
81 | of the value of `ordering'. In the case of RETURN_IN_ORDER, only | |
82 | `--' can cause `getopt' to return -1 with `optind' != ARGC. */ | |
83 | ||
84 | enum | |
85 | { | |
86 | REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER | |
87 | } __ordering; | |
88 | ||
89 | /* If the POSIXLY_CORRECT environment variable is set. */ | |
90 | int __posixly_correct; | |
91 | ||
92 | ||
93 | /* Handle permutation of arguments. */ | |
94 | ||
95 | /* Describe the part of ARGV that contains non-options that have | |
96 | been skipped. `first_nonopt' is the index in ARGV of the first | |
97 | of them; `last_nonopt' is the index after the last of them. */ | |
98 | ||
99 | int __first_nonopt; | |
100 | int __last_nonopt; | |
101 | ||
102 | #if defined _LIBC && defined USE_NONOPTION_FLAGS | |
103 | int __nonoption_flags_max_len; | |
104 | int __nonoption_flags_len; | |
105 | # endif | |
106 | }; | |
107 | ||
108 | /* The initializer is necessary to set OPTIND and OPTERR to their | |
109 | default values and to clear the initialization flag. */ | |
110 | #define _GETOPT_DATA_INITIALIZER { 1, 1 } | |
111 | ||
112 | extern int _getopt_internal_r (int ___argc, char *const *___argv, | |
113 | const char *__shortopts, | |
114 | const struct option *__longopts, int *__longind, | |
2e6d6bac UD |
115 | int __long_only, struct _getopt_data *__data, |
116 | int posixly_correct); | |
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117 | |
118 | extern int _getopt_long_r (int ___argc, char *const *___argv, | |
119 | const char *__shortopts, | |
120 | const struct option *__longopts, int *__longind, | |
121 | struct _getopt_data *__data); | |
122 | ||
123 | extern int _getopt_long_only_r (int ___argc, char *const *___argv, | |
124 | const char *__shortopts, | |
125 | const struct option *__longopts, | |
126 | int *__longind, | |
127 | struct _getopt_data *__data); | |
128 | ||
129 | #endif /* getopt_int.h */ |