int main ( int argc, char **argv) {
  int option_index = 0;
  char *fname = "./commands";

  if(argc == 1){ 
	  //pass: error defined in file_open function.
	  file_open(fname);
  } 
  
while(optind < argc) {
  if(( option_index = getopt(argc, argv, "f:h:u:p:k:o:w:e")) != -1){	
   switch(option_index){
     case 'f':
       file_open(optarg);	     
       break;	     
     case 'h':
       host_open(optarg);
       break;
     case 'u':
       user_open(optarg);
       break;
     case 'p':
       port_open(optarg);
       break;
     case 'w':
       pass_open(optarg);
       break;
     default:
      usage();
      break;
     } 
   }
   else {
      file_open(fname);
      optind++;
   }
}
  
  return 0;
}

void args(char *howmany, ...){
  
  va_list ap;
  char *host, *user, *pass, *port;
  va_start(ap, howmany);
  
  while(*howmany) { 
     switch(*(howmany++)){
	     case 'h':
		host = va_arg(ap, char *);		
		printf("%s\n", host);
		break;
	     case 'u':
		user = va_arg(ap, char *);
		printf("%s\n", user);
		break;
	     case 'w':
		pass = va_arg(ap, char *);
		printf("%s\n", pass);
		break;
	     case 'p':
	        port = va_arg(ap, char *);
	        printf("%s\n", port);
	        break;
	     }	
  }

  va_end(ap);  

}