1 | /* Internal declarations for getopt. |
2 | Copyright (C) 1989-2016 Free Software Foundation, Inc. |
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 |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ |
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, |
25 | int __long_only, int posixly_correct); |
26 | |
27 | |
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, |
115 | int __long_only, struct _getopt_data *__data, |
116 | int posixly_correct); |
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 */ |
130 | |