+EMUFS_REG_ID *emufs_idx_get(EMUFS *emu, EMUFS_REG_ID *cant)
+{
+ FILE *f_idx;
+ int count;
+ char name_f_idx[255];
+ EMUFS_REG_ID *tmp;
+ EMUFS_IDX reg;
+
+ strcpy(name_f_idx,emu->nombre);
+ strcat(name_f_idx, EMUFS_IDX_EXT);
+
+ if ( (f_idx = fopen(name_f_idx, "rb"))==NULL){
+ PERR("No se pudo abrir el archvo");
+ (*cant) = EMUFS_NOT_FOUND;
+ return NULL;
+ }
+
+ tmp = NULL;
+ count = 0;
+ while (!feof(f_idx)) {
+ if (fread(®, sizeof(EMUFS_IDX), 1, f_idx) != 1) continue;
+ if (reg.location != EMUFS_NOT_FOUND) {
+ count++;
+ tmp = realloc(tmp, count*sizeof(EMUFS_REG_ID));
+ tmp[count-1] = reg.id_reg;
+ }
+ }
+ fclose(f_idx);
+
+ (*cant) = count;
+ return tmp;
+}
+
+/** @todo FIXME borrar cuando se cambie emufs_gui/registros.c que es el unico
+ * que lo usa.
+ * @deprecated Usar emufs_idx_buscar_registro.
+ */
+int emufs_idx_existe_id(EMUFS *emu, int ID)
+{
+ FILE *f_idx;
+ char name_f_idx[255];
+ EMUFS_IDX reg;
+
+ strcpy(name_f_idx,emu->nombre);
+ strcat(name_f_idx, EMUFS_IDX_EXT);
+
+ if ( (f_idx = fopen(name_f_idx, "rb")) == NULL){
+ PERR("No se pudo abrir el archivo");
+ return -1;
+ }
+
+ if (fseek(f_idx, sizeof(EMUFS_IDX)*ID, SEEK_SET) == 0) {
+ fread(®, sizeof(EMUFS_IDX), 1, f_idx);
+ if (reg.location != EMUFS_NOT_FOUND) {
+ fclose(f_idx);
+ return 0;
+ }
+ }
+ fclose(f_idx);
+ return -1;/*no existe el id*/
+}
+
+int emufs_idx_actualizar(EMUFS *emu, int ID, EMUFS_BLOCK_ID bloque)
+{
+ FILE *f_idx;
+ char name_f_idx[255];
+ EMUFS_IDX reg;
+
+ strcpy(name_f_idx,emu->nombre);
+ strcat(name_f_idx, EMUFS_IDX_EXT);
+
+ if ( (f_idx = fopen(name_f_idx, "r+")) == NULL){
+ PERR("No se pudo abrir el archivo");
+ return -1;
+ }
+ fseek(f_idx,0,SEEK_SET);
+ fseek(f_idx,ID*sizeof(EMUFS_IDX),SEEK_SET);
+ fread(®,sizeof(EMUFS_IDX),1,f_idx);
+ reg.location = bloque;
+ fseek(f_idx,-sizeof(EMUFS_IDX),SEEK_CUR);
+ fwrite(®,sizeof(EMUFS_IDX),1,f_idx);
+ fclose(f_idx);
+ return 0;
+}