rdr_help_t
rdr_help_t help_data;
*buf_size = sizeof (rdr_help_t);
(void) memcpy(bufptr, &help_data, sizeof (rdr_help_t));
bufptr += sizeof (rdr_help_t);
rdr_help_t help_data;
(void) memcpy(&help_data, bufptr, sizeof (rdr_help_t));
bufptr += sizeof (rdr_help_t);
rdr_help_t help;