- T((T_CALLED("define_key(%s,%d)"), _nc_visbuf(str), keycode));
- if (keycode > 0) {
- if (str != 0) {
- define_key(str, 0);
- } else if (has_key(keycode)) {
- while (_nc_remove_key(&(SP->_keytry), keycode))
- code = OK;
- }
- if (str != 0) {
- (void) _nc_add_to_try(&(SP->_keytry), str, keycode);
- code = OK;
+ T((T_CALLED("define_key(%s,%d)"), _nc_visbuf(str), keycode));
+ if (SP == 0) {
+ code = ERR;
+ } else if (keycode > 0) {
+ unsigned ukey = (unsigned) keycode;
+
+ if (str != 0) {
+ define_key(str, 0);
+ } else if (has_key(keycode)) {
+ while (_nc_remove_key(&(SP->_keytry), ukey))
+ code = OK;
+ }
+ if (str != 0) {
+ if (key_defined(str) == 0) {
+ if (_nc_add_to_try(&(SP->_keytry), str, ukey) == OK) {
+ code = OK;
+ } else {
+ code = ERR;