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., 59 Temple Place - Suite 330, Boston, MA 02110-1301, USA. */ 19 20 #ifndef _GETOPT_INT_H 21 #define _GETOPT_INT_H 1 22 23 extern int _getopt_internal ( 24 int ___argc, 25 char *const *___argv, 26 const char *__shortopts, 27 const struct option *__longopts, 28 int *__longind, 29 int __long_only 30 ); 31 32 33 /* Reentrant versions which can handle parsing multiple argument 34 vectors at the same time. */ 35 36 /* Data type for reentrant functions. */ 37 struct _getopt_data 38 { 39 /* These have exactly the same meaning as the corresponding global 40 variables, except that they are used for the reentrant 41 versions of getopt. */ 42 int optind; 43 int opterr; 44 int optopt; 45 char *optarg; 46 47 /* Internal members. */ 48 49 /* True if the internal members have been initialized. */ 50 int __initialized; 51 52 /* The next char to be scanned in the option-element 53 in which the last option character we returned was found. 54 This allows us to pick up the scan where we left off. 55 56 If this is zero, or a null string, it means resume the scan 57 by advancing to the next ARGV-element. */ 58 char *__nextchar; 59 60 /* Describe how to deal with options that follow non-option ARGV-elements. 61 62 If the caller did not specify anything, 63 the default is REQUIRE_ORDER if the environment variable 64 POSIXLY_CORRECT is defined, PERMUTE otherwise. 65 66 REQUIRE_ORDER means don't recognize them as options; 67 stop option processing when the first non-option is seen. 68 This is what Unix does. 69 This mode of operation is selected by either setting the environment 70 variable POSIXLY_CORRECT, or using `+' as the first character 71 of the list of option characters. 72 73 PERMUTE is the default. We permute the contents of ARGV as we 74 scan, so that eventually all the non-options are at the end. 75 This allows options to be given in any order, even with programs 76 that were not written to expect this. 77 78 RETURN_IN_ORDER is an option available to programs that were 79 written to expect options and other ARGV-elements in any order 80 and that care about the ordering of the two. We describe each 81 non-option ARGV-element as if it were the argument of an option 82 with character code 1. Using `-' as the first character of the 83 list of option characters selects this mode of operation. 84 85 The special argument `--' forces an end of option-scanning regardless 86 of the value of `ordering'. In the case of RETURN_IN_ORDER, only 87 `--' can cause `getopt' to return -1 with `optind' != ARGC. */ 88 89 enum 90 { 91 REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER 92 } __ordering; 93 94 /* If the POSIXLY_CORRECT environment variable is set. */ 95 int __posixly_correct; 96 97 98 /* Handle permutation of arguments. */ 99 100 /* Describe the part of ARGV that contains non-options that have 101 been skipped. `first_nonopt' is the index in ARGV of the first 102 of them; `last_nonopt' is the index after the last of them. */ 103 104 int __first_nonopt; 105 int __last_nonopt; 106 107 #if defined _LIBC && defined USE_NONOPTION_FLAGS 108 int __nonoption_flags_max_len; 109 int __nonoption_flags_len; 110 # endif 111 }; 112 113 /* The initializer is necessary to set OPTIND and OPTERR to their 114 default values and to clear the initialization flag. */ 115 #define _GETOPT_DATA_INITIALIZER { 1, 1 } 116 117 extern int _getopt_internal_r ( 118 int ___argc, 119 char *const *___argv, 120 const char *__shortopts, 121 const struct option *__longopts, 122 int *__longind, 123 int __long_only, 124 struct _getopt_data *__data 125 ); 126 127 extern int _getopt_long_r ( 128 int ___argc, 129 char *const *___argv, 130 const char *__shortopts, 131 const struct option *__longopts, 132 int *__longind, 133 struct _getopt_data *__data 134 ); 135 136 extern int _getopt_long_only_r ( 137 int ___argc, 138 char *const *___argv, 139 const char *__shortopts, 140 const struct option *__longopts, 141 int *__longind, 142 struct _getopt_data *__data 143 ); 144 145 #endif /* getopt_int.h */ 146