OpenSC API Reference sc_update_dir 3 opensc sc_update_dir Update application directory on a card Synopsis #include <opensc.h> int sc_update_dir(sc_card_t *card, sc_app_info_t *app); Description This function updates the application directory on card. If the card has a record-structured directory file, app may contain the application to update. Otherwise, the entire directory file is updated. Before calling this function, you MUST call sc_enum_apps() first. Return value Returns 0 if successful, or a negative value in case of error.