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e275c824 | 1 | /* Internal declarations for getopt. |
ab422c4d | 2 | Copyright (C) 1989-1994, 1996-1999, 2001, 2003-2004, 2009-2013 Free Software |
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3 | Foundation, Inc. |
4 | This file is part of the GNU C Library. | |
5 | ||
6 | This program is free software: you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #ifndef _GETOPT_INT_H | |
20 | #define _GETOPT_INT_H 1 | |
21 | ||
22 | #include <getopt.h> | |
23 | ||
24 | extern int _getopt_internal (int ___argc, char **___argv, | |
25 | const char *__shortopts, | |
26 | const struct option *__longopts, int *__longind, | |
27 | int __long_only, int __posixly_correct); | |
28 | ||
29 | \f | |
30 | /* Reentrant versions which can handle parsing multiple argument | |
31 | vectors at the same time. */ | |
32 | ||
33 | /* Describe how to deal with options that follow non-option ARGV-elements. | |
34 | ||
35 | If the caller did not specify anything, | |
36 | the default is REQUIRE_ORDER if the environment variable | |
37 | POSIXLY_CORRECT is defined, PERMUTE otherwise. | |
38 | ||
39 | REQUIRE_ORDER means don't recognize them as options; | |
40 | stop option processing when the first non-option is seen. | |
41 | This is what Unix does. | |
42 | This mode of operation is selected by either setting the environment | |
caf8a9b2 | 43 | variable POSIXLY_CORRECT, or using '+' as the first character |
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44 | of the list of option characters, or by calling getopt. |
45 | ||
46 | PERMUTE is the default. We permute the contents of ARGV as we | |
47 | scan, so that eventually all the non-options are at the end. | |
48 | This allows options to be given in any order, even with programs | |
49 | that were not written to expect this. | |
50 | ||
51 | RETURN_IN_ORDER is an option available to programs that were | |
52 | written to expect options and other ARGV-elements in any order | |
53 | and that care about the ordering of the two. We describe each | |
54 | non-option ARGV-element as if it were the argument of an option | |
caf8a9b2 | 55 | with character code 1. Using '-' as the first character of the |
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56 | list of option characters selects this mode of operation. |
57 | ||
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58 | The special argument '--' forces an end of option-scanning regardless |
59 | of the value of 'ordering'. In the case of RETURN_IN_ORDER, only | |
60 | '--' can cause 'getopt' to return -1 with 'optind' != ARGC. */ | |
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61 | |
62 | enum __ord | |
63 | { | |
64 | REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER | |
65 | }; | |
66 | ||
67 | /* Data type for reentrant functions. */ | |
68 | struct _getopt_data | |
69 | { | |
70 | /* These have exactly the same meaning as the corresponding global | |
71 | variables, except that they are used for the reentrant | |
72 | versions of getopt. */ | |
73 | int optind; | |
74 | int opterr; | |
75 | int optopt; | |
76 | char *optarg; | |
77 | ||
78 | /* Internal members. */ | |
79 | ||
80 | /* True if the internal members have been initialized. */ | |
81 | int __initialized; | |
82 | ||
83 | /* The next char to be scanned in the option-element | |
84 | in which the last option character we returned was found. | |
85 | This allows us to pick up the scan where we left off. | |
86 | ||
87 | If this is zero, or a null string, it means resume the scan | |
88 | by advancing to the next ARGV-element. */ | |
89 | char *__nextchar; | |
90 | ||
91 | /* See __ord above. */ | |
92 | enum __ord __ordering; | |
93 | ||
94 | /* If the POSIXLY_CORRECT environment variable is set | |
95 | or getopt was called. */ | |
96 | int __posixly_correct; | |
97 | ||
98 | ||
99 | /* Handle permutation of arguments. */ | |
100 | ||
101 | /* Describe the part of ARGV that contains non-options that have | |
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102 | been skipped. 'first_nonopt' is the index in ARGV of the first |
103 | of them; 'last_nonopt' is the index after the last of them. */ | |
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104 | |
105 | int __first_nonopt; | |
106 | int __last_nonopt; | |
107 | ||
108 | #if defined _LIBC && defined USE_NONOPTION_FLAGS | |
109 | int __nonoption_flags_max_len; | |
110 | int __nonoption_flags_len; | |
9411886d | 111 | #endif |
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112 | }; |
113 | ||
114 | /* The initializer is necessary to set OPTIND and OPTERR to their | |
115 | default values and to clear the initialization flag. */ | |
116 | #define _GETOPT_DATA_INITIALIZER { 1, 1 } | |
117 | ||
118 | extern int _getopt_internal_r (int ___argc, char **___argv, | |
119 | const char *__shortopts, | |
120 | const struct option *__longopts, int *__longind, | |
121 | int __long_only, struct _getopt_data *__data, | |
122 | int __posixly_correct); | |
123 | ||
124 | extern int _getopt_long_r (int ___argc, char **___argv, | |
125 | const char *__shortopts, | |
126 | const struct option *__longopts, int *__longind, | |
127 | struct _getopt_data *__data); | |
128 | ||
129 | extern int _getopt_long_only_r (int ___argc, char **___argv, | |
130 | const char *__shortopts, | |
131 | const struct option *__longopts, | |
132 | int *__longind, | |
133 | struct _getopt_data *__data); | |
134 | ||
135 | #endif /* getopt_int.h */ |