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| 1 /* Internal declarations for getopt. |
| 2 Copyright (C) 1989-1994,1996-1999,2001,2003,2004 |
| 3 Free Software 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 2, or (at your option) |
| 9 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 along |
| 17 with this program; if not, write to the Free Software Foundation, |
| 18 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 19 |
| 20 #ifndef _GETOPT_INT_H |
| 21 #define _GETOPT_INT_H 1 |
| 22 |
| 23 extern int _getopt_internal (int ___argc, char **___argv, |
| 24 const char *__shortopts, |
| 25 const struct option *__longopts, int *__longind, |
| 26 int __long_only, int __posixly_correct); |
| 27 |
| 28 |
| 29 /* Reentrant versions which can handle parsing multiple argument |
| 30 vectors at the same time. */ |
| 31 |
| 32 /* Data type for reentrant functions. */ |
| 33 struct _getopt_data |
| 34 { |
| 35 /* These have exactly the same meaning as the corresponding global |
| 36 variables, except that they are used for the reentrant |
| 37 versions of getopt. */ |
| 38 int optind; |
| 39 int opterr; |
| 40 int optopt; |
| 41 char *optarg; |
| 42 |
| 43 /* Internal members. */ |
| 44 |
| 45 /* True if the internal members have been initialized. */ |
| 46 int __initialized; |
| 47 |
| 48 /* The next char to be scanned in the option-element |
| 49 in which the last option character we returned was found. |
| 50 This allows us to pick up the scan where we left off. |
| 51 |
| 52 If this is zero, or a null string, it means resume the scan |
| 53 by advancing to the next ARGV-element. */ |
| 54 char *__nextchar; |
| 55 |
| 56 /* Describe how to deal with options that follow non-option ARGV-elements. |
| 57 |
| 58 If the caller did not specify anything, |
| 59 the default is REQUIRE_ORDER if the environment variable |
| 60 POSIXLY_CORRECT is defined, PERMUTE otherwise. |
| 61 |
| 62 REQUIRE_ORDER means don't recognize them as options; |
| 63 stop option processing when the first non-option is seen. |
| 64 This is what Unix does. |
| 65 This mode of operation is selected by either setting the environment |
| 66 variable POSIXLY_CORRECT, or using `+' as the first character |
| 67 of the list of option characters, or by calling getopt. |
| 68 |
| 69 PERMUTE is the default. We permute the contents of ARGV as we |
| 70 scan, so that eventually all the non-options are at the end. |
| 71 This allows options to be given in any order, even with programs |
| 72 that were not written to expect this. |
| 73 |
| 74 RETURN_IN_ORDER is an option available to programs that were |
| 75 written to expect options and other ARGV-elements in any order |
| 76 and that care about the ordering of the two. We describe each |
| 77 non-option ARGV-element as if it were the argument of an option |
| 78 with character code 1. Using `-' as the first character of the |
| 79 list of option characters selects this mode of operation. |
| 80 |
| 81 The special argument `--' forces an end of option-scanning regardless |
| 82 of the value of `ordering'. In the case of RETURN_IN_ORDER, only |
| 83 `--' can cause `getopt' to return -1 with `optind' != ARGC. */ |
| 84 |
| 85 enum |
| 86 { |
| 87 REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER |
| 88 } __ordering; |
| 89 |
| 90 /* If the POSIXLY_CORRECT environment variable is set |
| 91 or getopt was called. */ |
| 92 int __posixly_correct; |
| 93 |
| 94 |
| 95 /* Handle permutation of arguments. */ |
| 96 |
| 97 /* Describe the part of ARGV that contains non-options that have |
| 98 been skipped. `first_nonopt' is the index in ARGV of the first |
| 99 of them; `last_nonopt' is the index after the last of them. */ |
| 100 |
| 101 int __first_nonopt; |
| 102 int __last_nonopt; |
| 103 |
| 104 #if defined _LIBC && defined USE_NONOPTION_FLAGS |
| 105 int __nonoption_flags_max_len; |
| 106 int __nonoption_flags_len; |
| 107 # endif |
| 108 }; |
| 109 |
| 110 /* The initializer is necessary to set OPTIND and OPTERR to their |
| 111 default values and to clear the initialization flag. */ |
| 112 #define _GETOPT_DATA_INITIALIZER { 1, 1 } |
| 113 |
| 114 extern int _getopt_internal_r (int ___argc, char **___argv, |
| 115 const char *__shortopts, |
| 116 const struct option *__longopts, int *__longind, |
| 117 int __long_only, int __posixly_correct, |
| 118 struct _getopt_data *__data); |
| 119 |
| 120 extern int _getopt_long_r (int ___argc, char **___argv, |
| 121 const char *__shortopts, |
| 122 const struct option *__longopts, int *__longind, |
| 123 struct _getopt_data *__data); |
| 124 |
| 125 extern int _getopt_long_only_r (int ___argc, char **___argv, |
| 126 const char *__shortopts, |
| 127 const struct option *__longopts, |
| 128 int *__longind, |
| 129 struct _getopt_data *__data); |
| 130 |
| 131 #endif /* getopt_int.h */ |
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