conf_error_msg
extern void conf_error_msg(conf_err_t err, char *buf, int buflen,
conf_error_msg(err, msgbuf, MAX_CONF_MSG_LEN, &strans);
conf_error_msg(err, msgbuf, MAX_CONF_MSG_LEN, NULL);
conf_error_msg(conferr, msgbuf, MAX_CONF_MSG_LEN, NULL);
conf_error_msg(conferr, msgbuf, MAX_CONF_MSG_LEN, ptr);