Trying to reimplement getopt for Fun

getopt.h

/****************************************************************************/
/* Copyright (c) 2011, Vasudev Kamath <[email protected]>             */
/*                                                                          */
/* Permission to use, copy, modify, and/or distribute this software for any */
/* purpose with or without fee is hereby granted, provided that the above   */
/* copyright notice and this permission notice appear in all copies.        */
/*                                                                          */
/* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES */
/* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF         */
/* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR  */
/* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES   */
/* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN    */
/* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF  */
/* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.           */
/****************************************************************************/

#include <stdio.h>

typedef struct 
{
    char *command;
    char **short_options;
    char **other_args;
    
} Options;

Options* getopt(int number,char **arguments);