161     FILE *key_file = NULL;  in save_key()  local
166     SYS_CHECK((key_file = fopen(output_file_name, "wb")) != NULL);  in save_key()
168     mbedtls_setbuf(key_file, NULL);  in save_key()
169     SYS_CHECK(fwrite(key_data, 1, key_size, key_file) == key_size);  in save_key()
170     SYS_CHECK(fclose(key_file) == 0);  in save_key()
171     key_file = NULL;  in save_key()
174     if (key_file != NULL) {  in save_key()
175         fclose(key_file);  in save_key()
220     FILE *key_file = NULL;  in import_key_from_file()  local
223     SYS_CHECK((key_file = fopen(key_file_name, "rb")) != NULL);  in import_key_from_file()
225     mbedtls_setbuf(key_file, NULL);  in import_key_from_file()
227                                 key_file)) != 0);  in import_key_from_file()
228     if (fread(&extra_byte, 1, 1, key_file) != 0) {  in import_key_from_file()
234     SYS_CHECK(fclose(key_file) == 0);  in import_key_from_file()
235     key_file = NULL;  in import_key_from_file()
242     if (key_file != NULL) {  in import_key_from_file()
243         fclose(key_file);  in import_key_from_file()