1 /* 2 NOTE: 3 I cannot get the vanilla getopt code to work (i.e. compile only what 4 is needed and not duplicate symbols found in the standard library) 5 on all the platforms that FLAC supports. In particular the gating 6 of code with the ELIDE_CODE #define is not accurate enough on systems 7 that are POSIX but not glibc. If someone has a patch that works on 8 GNU/Linux, Darwin, AND Solaris please submit it on the project page: 9 https://sourceforge.net/p/flac/patches/ 10 11 In the meantime I have munged the global symbols and removed gates 12 around code, while at the same time trying to touch the original as 13 little as possible. 14 */ 15 /* Declarations for getopt. 16 Copyright (C) 1989,90,91,92,93,94,96,97,98 Free Software Foundation, Inc. 17 This file is part of the GNU C Library. 18 19 The GNU C Library is free software; you can redistribute it and/or 20 modify it under the terms of the GNU Library General Public License as 21 published by the Free Software Foundation; either version 2 of the 22 License, or (at your option) any later version. 23 24 The GNU C Library is distributed in the hope that it will be useful, 25 but WITHOUT ANY WARRANTY; without even the implied warranty of 26 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 27 Library General Public License for more details. 28 29 You should have received a copy of the GNU Library General Public 30 License along with the GNU C Library; see the file COPYING.LIB. If not, 31 write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 32 Boston, MA 02110-1301, USA. */ 33 34 #ifndef SHARE__GETOPT_H 35 #define SHARE__GETOPT_H 36 37 /*[JEC] was:#ifndef __need_getopt*/ 38 /*[JEC] was:# define _GETOPT_H 1*/ 39 /*[JEC] was:#endif*/ 40 41 #ifdef __cplusplus 42 extern "C" { 43 #endif 44 45 /* For communication from `share__getopt' to the caller. 46 When `share__getopt' finds an option that takes an argument, 47 the argument value is returned here. 48 Also, when `ordering' is RETURN_IN_ORDER, 49 each non-option ARGV-element is returned here. */ 50 51 extern char *share__optarg; 52 53 /* Index in ARGV of the next element to be scanned. 54 This is used for communication to and from the caller 55 and for communication between successive calls to `share__getopt'. 56 57 On entry to `share__getopt', zero means this is the first call; initialize. 58 59 When `share__getopt' returns -1, this is the index of the first of the 60 non-option elements that the caller should itself scan. 61 62 Otherwise, `share__optind' communicates from one call to the next 63 how much of ARGV has been scanned so far. */ 64 65 extern int share__optind; 66 67 /* Callers store zero here to inhibit the error message `share__getopt' prints 68 for unrecognized options. */ 69 70 extern int share__opterr; 71 72 /* Set to an option character which was unrecognized. */ 73 74 extern int share__optopt; 75 76 /*[JEC] was:#ifndef __need_getopt */ 77 /* Describe the long-named options requested by the application. 78 The LONG_OPTIONS argument to share__getopt_long or share__getopt_long_only is a vector 79 of `struct share__option' terminated by an element containing a name which is 80 zero. 81 82 The field `has_arg' is: 83 share__no_argument (or 0) if the option does not take an argument, 84 share__required_argument (or 1) if the option requires an argument, 85 share__optional_argument (or 2) if the option takes an optional argument. 86 87 If the field `flag' is not NULL, it points to a variable that is set 88 to the value given in the field `val' when the option is found, but 89 left unchanged if the option is not found. 90 91 To have a long-named option do something other than set an `int' to 92 a compiled-in constant, such as set a value from `share__optarg', set the 93 option's `flag' field to zero and its `val' field to a nonzero 94 value (the equivalent single-letter option character, if there is 95 one). For long options that have a zero `flag' field, `share__getopt' 96 returns the contents of the `val' field. */ 97 98 struct share__option 99 { 100 # if defined __STDC__ && __STDC__ 101 const char *name; 102 # else 103 char *name; 104 # endif 105 /* has_arg can't be an enum because some compilers complain about 106 type mismatches in all the code that assumes it is an int. */ 107 int has_arg; 108 int *flag; 109 int val; 110 }; 111 112 /* Names for the values of the `has_arg' field of `struct share__option'. */ 113 114 # define share__no_argument 0 115 # define share__required_argument 1 116 # define share__optional_argument 2 117 /*[JEC] was:#endif*/ /* need getopt */ 118 119 120 /* Get definitions and prototypes for functions to process the 121 arguments in ARGV (ARGC of them, minus the program name) for 122 options given in OPTS. 123 124 Return the option character from OPTS just read. Return -1 when 125 there are no more options. For unrecognized options, or options 126 missing arguments, `share__optopt' is set to the option letter, and '?' is 127 returned. 128 129 The OPTS string is a list of characters which are recognized option 130 letters, optionally followed by colons, specifying that that letter 131 takes an argument, to be placed in `share__optarg'. 132 133 If a letter in OPTS is followed by two colons, its argument is 134 optional. This behavior is specific to the GNU `share__getopt'. 135 136 The argument `--' causes premature termination of argument 137 scanning, explicitly telling `share__getopt' that there are no more 138 options. 139 140 If OPTS begins with `--', then non-option arguments are treated as 141 arguments to the option '\0'. This behavior is specific to the GNU 142 `share__getopt'. */ 143 144 /*[JEC] was:#if defined __STDC__ && __STDC__*/ 145 /*[JEC] was:# ifdef __GNU_LIBRARY__*/ 146 /* Many other libraries have conflicting prototypes for getopt, with 147 differences in the consts, in stdlib.h. To avoid compilation 148 errors, only prototype getopt for the GNU C library. */ 149 extern int share__getopt (int argc, char *const *argv, const char *shortopts); 150 /*[JEC] was:# else*/ /* not __GNU_LIBRARY__ */ 151 /*[JEC] was:extern int getopt ();*/ 152 /*[JEC] was:# endif*/ /* __GNU_LIBRARY__ */ 153 154 /*[JEC] was:# ifndef __need_getopt*/ 155 extern int share__getopt_long (int argc, char *const *argv, const char *shortopts, 156 const struct share__option *longopts, int *longind); 157 extern int share__getopt_long_only (int argc, char *const *argv, 158 const char *shortopts, 159 const struct share__option *longopts, int *longind); 160 161 /* Internal only. Users should not call this directly. */ 162 extern int share___getopt_internal (int argc, char *const *argv, 163 const char *shortopts, 164 const struct share__option *longopts, int *longind, 165 int long_only); 166 /*[JEC] was:# endif*/ 167 /*[JEC] was:#else*/ /* not __STDC__ */ 168 /*[JEC] was:extern int getopt ();*/ 169 /*[JEC] was:# ifndef __need_getopt*/ 170 /*[JEC] was:extern int getopt_long ();*/ 171 /*[JEC] was:extern int getopt_long_only ();*/ 172 173 /*[JEC] was:extern int _getopt_internal ();*/ 174 /*[JEC] was:# endif*/ 175 /*[JEC] was:#endif*/ /* __STDC__ */ 176 177 #ifdef __cplusplus 178 } 179 #endif 180 181 /* Make sure we later can get all the definitions and declarations. */ 182 /*[JEC] was:#undef __need_getopt*/ 183 184 #endif /* getopt.h */ 185
