Chris@1: /*
Chris@1: 	NOTE:
Chris@1: 	I cannot get the vanilla getopt code to work (i.e. compile only what
Chris@1: 	is needed and not duplicate symbols found in the standard library)
Chris@1: 	on all the platforms that FLAC supports.  In particular the gating
Chris@1: 	of code with the ELIDE_CODE #define is not accurate enough on systems
Chris@1: 	that are POSIX but not glibc.  If someone has a patch that works on
Chris@1: 	GNU/Linux, Darwin, AND Solaris please submit it on the project page:
Chris@1: 		http://sourceforge.net/projects/flac
Chris@1: 
Chris@1: 	In the meantime I have munged the global symbols and removed gates
Chris@1: 	around code, while at the same time trying to touch the original as
Chris@1: 	little as possible.
Chris@1: */
Chris@1: /* Declarations for getopt.
Chris@1:    Copyright (C) 1989,90,91,92,93,94,96,97,98 Free Software Foundation, Inc.
Chris@1:    This file is part of the GNU C Library.
Chris@1: 
Chris@1:    The GNU C Library is free software; you can redistribute it and/or
Chris@1:    modify it under the terms of the GNU Library General Public License as
Chris@1:    published by the Free Software Foundation; either version 2 of the
Chris@1:    License, or (at your option) any later version.
Chris@1: 
Chris@1:    The GNU C Library is distributed in the hope that it will be useful,
Chris@1:    but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@1:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Chris@1:    Library General Public License for more details.
Chris@1: 
Chris@1:    You should have received a copy of the GNU Library General Public
Chris@1:    License along with the GNU C Library; see the file COPYING.LIB.  If not,
Chris@1:    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Chris@1:    Boston, MA 02111-1307, USA.  */
Chris@1: 
Chris@1: #ifndef SHARE__GETOPT_H
Chris@1: #define SHARE__GETOPT_H
Chris@1: 
Chris@1: /*[JEC] was:#ifndef __need_getopt*/
Chris@1: /*[JEC] was:# define _GETOPT_H 1*/
Chris@1: /*[JEC] was:#endif*/
Chris@1: 
Chris@1: #ifdef	__cplusplus
Chris@1: extern "C" {
Chris@1: #endif
Chris@1: 
Chris@1: /* For communication from `share__getopt' to the caller.
Chris@1:    When `share__getopt' finds an option that takes an argument,
Chris@1:    the argument value is returned here.
Chris@1:    Also, when `ordering' is RETURN_IN_ORDER,
Chris@1:    each non-option ARGV-element is returned here.  */
Chris@1: 
Chris@1: extern char *share__optarg;
Chris@1: 
Chris@1: /* Index in ARGV of the next element to be scanned.
Chris@1:    This is used for communication to and from the caller
Chris@1:    and for communication between successive calls to `share__getopt'.
Chris@1: 
Chris@1:    On entry to `share__getopt', zero means this is the first call; initialize.
Chris@1: 
Chris@1:    When `share__getopt' returns -1, this is the index of the first of the
Chris@1:    non-option elements that the caller should itself scan.
Chris@1: 
Chris@1:    Otherwise, `share__optind' communicates from one call to the next
Chris@1:    how much of ARGV has been scanned so far.  */
Chris@1: 
Chris@1: extern int share__optind;
Chris@1: 
Chris@1: /* Callers store zero here to inhibit the error message `share__getopt' prints
Chris@1:    for unrecognized options.  */
Chris@1: 
Chris@1: extern int share__opterr;
Chris@1: 
Chris@1: /* Set to an option character which was unrecognized.  */
Chris@1: 
Chris@1: extern int share__optopt;
Chris@1: 
Chris@1: /*[JEC] was:#ifndef __need_getopt */
Chris@1: /* Describe the long-named options requested by the application.
Chris@1:    The LONG_OPTIONS argument to share__getopt_long or share__getopt_long_only is a vector
Chris@1:    of `struct share__option' terminated by an element containing a name which is
Chris@1:    zero.
Chris@1: 
Chris@1:    The field `has_arg' is:
Chris@1:    share__no_argument		(or 0) if the option does not take an argument,
Chris@1:    share__required_argument	(or 1) if the option requires an argument,
Chris@1:    share__optional_argument 	(or 2) if the option takes an optional argument.
Chris@1: 
Chris@1:    If the field `flag' is not NULL, it points to a variable that is set
Chris@1:    to the value given in the field `val' when the option is found, but
Chris@1:    left unchanged if the option is not found.
Chris@1: 
Chris@1:    To have a long-named option do something other than set an `int' to
Chris@1:    a compiled-in constant, such as set a value from `share__optarg', set the
Chris@1:    option's `flag' field to zero and its `val' field to a nonzero
Chris@1:    value (the equivalent single-letter option character, if there is
Chris@1:    one).  For long options that have a zero `flag' field, `share__getopt'
Chris@1:    returns the contents of the `val' field.  */
Chris@1: 
Chris@1: struct share__option
Chris@1: {
Chris@1: # if defined __STDC__ && __STDC__
Chris@1:   const char *name;
Chris@1: # else
Chris@1:   char *name;
Chris@1: # endif
Chris@1:   /* has_arg can't be an enum because some compilers complain about
Chris@1:      type mismatches in all the code that assumes it is an int.  */
Chris@1:   int has_arg;
Chris@1:   int *flag;
Chris@1:   int val;
Chris@1: };
Chris@1: 
Chris@1: /* Names for the values of the `has_arg' field of `struct share__option'.  */
Chris@1: 
Chris@1: # define share__no_argument		0
Chris@1: # define share__required_argument	1
Chris@1: # define share__optional_argument	2
Chris@1: /*[JEC] was:#endif*/	/* need getopt */
Chris@1: 
Chris@1: 
Chris@1: /* Get definitions and prototypes for functions to process the
Chris@1:    arguments in ARGV (ARGC of them, minus the program name) for
Chris@1:    options given in OPTS.
Chris@1: 
Chris@1:    Return the option character from OPTS just read.  Return -1 when
Chris@1:    there are no more options.  For unrecognized options, or options
Chris@1:    missing arguments, `share__optopt' is set to the option letter, and '?' is
Chris@1:    returned.
Chris@1: 
Chris@1:    The OPTS string is a list of characters which are recognized option
Chris@1:    letters, optionally followed by colons, specifying that that letter
Chris@1:    takes an argument, to be placed in `share__optarg'.
Chris@1: 
Chris@1:    If a letter in OPTS is followed by two colons, its argument is
Chris@1:    optional.  This behavior is specific to the GNU `share__getopt'.
Chris@1: 
Chris@1:    The argument `--' causes premature termination of argument
Chris@1:    scanning, explicitly telling `share__getopt' that there are no more
Chris@1:    options.
Chris@1: 
Chris@1:    If OPTS begins with `--', then non-option arguments are treated as
Chris@1:    arguments to the option '\0'.  This behavior is specific to the GNU
Chris@1:    `share__getopt'.  */
Chris@1: 
Chris@1: /*[JEC] was:#if defined __STDC__ && __STDC__*/
Chris@1: /*[JEC] was:# ifdef __GNU_LIBRARY__*/
Chris@1: /* Many other libraries have conflicting prototypes for getopt, with
Chris@1:    differences in the consts, in stdlib.h.  To avoid compilation
Chris@1:    errors, only prototype getopt for the GNU C library.  */
Chris@1: extern int share__getopt (int argc, char *const *argv, const char *shortopts);
Chris@1: /*[JEC] was:# else*/ /* not __GNU_LIBRARY__ */
Chris@1: /*[JEC] was:extern int getopt ();*/
Chris@1: /*[JEC] was:# endif*/ /* __GNU_LIBRARY__ */
Chris@1: 
Chris@1: /*[JEC] was:# ifndef __need_getopt*/
Chris@1: extern int share__getopt_long (int argc, char *const *argv, const char *shortopts,
Chris@1: 		        const struct share__option *longopts, int *longind);
Chris@1: extern int share__getopt_long_only (int argc, char *const *argv,
Chris@1: 			     const char *shortopts,
Chris@1: 		             const struct share__option *longopts, int *longind);
Chris@1: 
Chris@1: /* Internal only.  Users should not call this directly.  */
Chris@1: extern int share___getopt_internal (int argc, char *const *argv,
Chris@1: 			     const char *shortopts,
Chris@1: 		             const struct share__option *longopts, int *longind,
Chris@1: 			     int long_only);
Chris@1: /*[JEC] was:# endif*/
Chris@1: /*[JEC] was:#else*/ /* not __STDC__ */
Chris@1: /*[JEC] was:extern int getopt ();*/
Chris@1: /*[JEC] was:# ifndef __need_getopt*/
Chris@1: /*[JEC] was:extern int getopt_long ();*/
Chris@1: /*[JEC] was:extern int getopt_long_only ();*/
Chris@1: 
Chris@1: /*[JEC] was:extern int _getopt_internal ();*/
Chris@1: /*[JEC] was:# endif*/
Chris@1: /*[JEC] was:#endif*/ /* __STDC__ */
Chris@1: 
Chris@1: #ifdef	__cplusplus
Chris@1: }
Chris@1: #endif
Chris@1: 
Chris@1: /* Make sure we later can get all the definitions and declarations.  */
Chris@1: /*[JEC] was:#undef __need_getopt*/
Chris@1: 
Chris@1: #endif /* getopt.h */