como ejecutar pcp_recovery_node -h 192.168.1.48 -p 9898 -U pgpool -n 1 y enviar la contraseña

int main(int argc, char *argv[])
{

	char *host;
	int port;
	char *username;
	int nodeid;
	
	int opt;

	/* parse options */
	while ((opt = getopt_long(argc, argv, "h:p:U:n:", long_options, NULL)) != -1)
	{
		switch (opt)
		{
			case 'h':
				host = optarg;
				break;
			case 'p':
				port = atoi(optarg);
				break;
			case 'U':
				username = optarg;
				break;
			case 'n':
				nodeid = atoi(optarg);
				break;
			default:
				usage();
				exit(1);
				break;
		}
	}

	if