71 #define SYS_CHECK(expr)                                       \  macro
166     SYS_CHECK((key_file = fopen(output_file_name, "wb")) != 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()
223     SYS_CHECK((key_file = fopen(key_file_name, "rb")) != NULL);  in import_key_from_file()
226     SYS_CHECK((key_size = fread(key_data, 1, sizeof(key_data),  in import_key_from_file()
234     SYS_CHECK(fclose(key_file) == 0);  in import_key_from_file()
363     SYS_CHECK((input_file = fopen(input_file_name, "rb")) != NULL);  in wrap_data()
366     SYS_CHECK(fseek(input_file, 0, SEEK_END) == 0);  in wrap_data()
367     SYS_CHECK((input_position = ftell(input_file)) != -1);  in wrap_data()
388     SYS_CHECK(fseek(input_file, 0, SEEK_SET) == 0);  in wrap_data()
389     SYS_CHECK((buffer = calloc(1, buffer_size)) != NULL);  in wrap_data()
390     SYS_CHECK(fread(buffer, 1, input_size, input_file) == input_size);  in wrap_data()
391     SYS_CHECK(fclose(input_file) == 0);  in wrap_data()
409     SYS_CHECK((output_file = fopen(output_file_name, "wb")) != NULL);  in wrap_data()
412     SYS_CHECK(fwrite(&header, 1, sizeof(header),  in wrap_data()
414     SYS_CHECK(fwrite(buffer, 1, ciphertext_size,  in wrap_data()
416     SYS_CHECK(fclose(output_file) == 0);  in wrap_data()
449     SYS_CHECK((input_file = fopen(input_file_name, "rb")) != NULL);  in unwrap_data()
452     SYS_CHECK(fread(&header, 1, sizeof(header),  in unwrap_data()
477     SYS_CHECK((buffer = calloc(1, ciphertext_size)) != NULL);  in unwrap_data()
478     SYS_CHECK(fread(buffer, 1, ciphertext_size,  in unwrap_data()
485     SYS_CHECK(fclose(input_file) == 0);  in unwrap_data()
502     SYS_CHECK((output_file = fopen(output_file_name, "wb")) != NULL);  in unwrap_data()
505     SYS_CHECK(fwrite(buffer, 1, plaintext_size,  in unwrap_data()
507     SYS_CHECK(fclose(output_file) == 0);  in unwrap_data()