1 /* $NetBSD: getopt_int.h,v 1.1.1.1 2016/01/14 00:11:29 christos Exp $ */ 2 3 /* Internal declarations for getopt. 4 Copyright (C) 1989-1994,1996-1999,2001,2003,2004 5 Free Software Foundation, Inc. 6 This file is part of the GNU C Library. 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 2, or (at your option) 11 any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License along 19 with this program; if not, write to the Free Software Foundation, 20 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 21 22 #ifndef _GETOPT_INT_H 23 #define _GETOPT_INT_H 1 24 25 extern int _getopt_internal (int ___argc, char *const *___argv, 26 const char *__shortopts, 27 const struct option *__longopts, int *__longind, 28 int __long_only); 29 30 31 /* Reentrant versions which can handle parsing multiple argument 32 vectors at the same time. */ 33 34 /* Data type for reentrant functions. */ 35 struct _getopt_data 36 { 37 /* These have exactly the same meaning as the corresponding global 38 variables, except that they are used for the reentrant 39 versions of getopt. */ 40 int optind; 41 int opterr; 42 int optopt; 43 char *optarg; 44 45 /* Internal members. */ 46 47 /* True if the internal members have been initialized. */ 48 int __initialized; 49 50 /* The next char to be scanned in the option-element 51 in which the last option character we returned was found. 52 This allows us to pick up the scan where we left off. 53 54 If this is zero, or a null string, it means resume the scan 55 by advancing to the next ARGV-element. */ 56 char *__nextchar; 57 58 /* Describe how to deal with options that follow non-option ARGV-elements. 59 60 If the caller did not specify anything, 61 the default is REQUIRE_ORDER if the environment variable 62 POSIXLY_CORRECT is defined, PERMUTE otherwise. 63 64 REQUIRE_ORDER means don't recognize them as options; 65 stop option processing when the first non-option is seen. 66 This is what Unix does. 67 This mode of operation is selected by either setting the environment 68 variable POSIXLY_CORRECT, or using `+' as the first character 69 of the list of option characters. 70 71 PERMUTE is the default. We permute the contents of ARGV as we 72 scan, so that eventually all the non-options are at the end. 73 This allows options to be given in any order, even with programs 74 that were not written to expect this. 75 76 RETURN_IN_ORDER is an option available to programs that were 77 written to expect options and other ARGV-elements in any order 78 and that care about the ordering of the two. We describe each 79 non-option ARGV-element as if it were the argument of an option 80 with character code 1. Using `-' as the first character of the 81 list of option characters selects this mode of operation. 82 83 The special argument `--' forces an end of option-scanning regardless 84 of the value of `ordering'. In the case of RETURN_IN_ORDER, only 85 `--' can cause `getopt' to return -1 with `optind' != ARGC. */ 86 87 enum 88 { 89 REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER 90 } __ordering; 91 92 /* If the POSIXLY_CORRECT environment variable is set. */ 93 int __posixly_correct; 94 95 96 /* Handle permutation of arguments. */ 97 98 /* Describe the part of ARGV that contains non-options that have 99 been skipped. `first_nonopt' is the index in ARGV of the first 100 of them; `last_nonopt' is the index after the last of them. */ 101 102 int __first_nonopt; 103 int __last_nonopt; 104 105 #if defined _LIBC && defined USE_NONOPTION_FLAGS 106 int __nonoption_flags_max_len; 107 int __nonoption_flags_len; 108 # endif 109 }; 110 111 /* The initializer is necessary to set OPTIND and OPTERR to their 112 default values and to clear the initialization flag. */ 113 #define _GETOPT_DATA_INITIALIZER { 1, 1 } 114 115 extern int _getopt_internal_r (int ___argc, char *const *___argv, 116 const char *__shortopts, 117 const struct option *__longopts, int *__longind, 118 int __long_only, struct _getopt_data *__data); 119 120 extern int _getopt_long_r (int ___argc, char *const *___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 *const *___argv, 126 const char *__shortopts, 127 const struct option *__longopts, 128 int *__longind, 129 struct _getopt_data *__data); 130 131 #endif /* getopt_int.h */ 132