update_kcfconf
rc = update_kcfconf(pent, DELETE_MODE);
rc = update_kcfconf(pent, MODIFY_MODE);
rc = update_kcfconf(pent, ADD_MODE);
rc = update_kcfconf(pent, MODIFY_MODE);
if (update_kcfconf(pent, MODIFY_MODE) == FAILURE) {
rc = update_kcfconf(pent, DELETE_MODE);
rc = update_kcfconf(pent, MODIFY_MODE);
rc = update_kcfconf(pent, MODIFY_MODE);
extern int update_kcfconf(entry_t *, int);