ifdtool.c

	}

	filename = argv[optind];
	if (optind + 2 != argc)
		outfile = argv[optind + 1];

	if (create)
		bios_fd = open(filename, O_WRONLY | O_CREAT, 0666);
	else
		bios_fd = open(filename, outfile ? O_RDONLY : O_RDWR);

	if (bios_fd == -1) {
		perror("Could not open file");
		exit(EXIT_FAILURE);
	}

	if (!create) {
		if (fstat(bios_fd, &buf) == -1) {
			perror("Could not stat file");
			exit(EXIT_FAILURE);
		}
		size = buf.st_size;
	}

	debug("File %s is %d bytes\n", filename, size);

	if (rom_size == -1)
		rom_size = size;

	image = malloc(rom_size);
	if (!image) {
		printf("Out of memory.\n");
		exit(EXIT_FAILURE);
	}

	memset(image, '\xff', rom_size);
	if (!create && read(bios_fd, image, size) != size) {
		perror("Could not read file");
		exit(EXIT_FAILURE);
	}
	if (size != rom_size) {
		debug("ROM size changed to %d bytes\n", rom_size);
		size = rom_size;
	}

	write_it = true;
	ret = 0;
	if (mode_dump) {
		ret = dump_fd(image, size);
		write_it = false;
	}

	if (mode_extract) {
		ret = write_regions(image, size);
		write_it = false;
	}

	if (mode_write_descriptor)
		ret = write_data(image, size, -size, desc_fname, 0, 0);

	if (mode_inject)
		ret = inject_region(image, size, region_type, inject_fname);

	if (mode_write) {
		int offset_uboot_top = 0;
		int offset_uboot_start = 0;

		for (wr_idx = 0; wr_idx < wr_num; wr_idx++) {
			ifile = &input_file[wr_idx];
			ret = write_data(image, size, ifile->addr,
					 ifile->fname, offset_uboot_top,
					 offset_uboot_start);
			if (ret < 0)
				break;
		}
	}

	if (mode_spifreq)
		set_spi_frequency(image, size, spifreq);

	if (mode_em100)
		set_em100_mode(image, size);

	if (mode_locked)
		lock_descriptor(image, size);

	if (mode_unlocked)
		unlock_descriptor(image, size);

	if (write_it) {
		if (outfile) {
			ret = write_image(outfile, image, size);
		} else {
			if (lseek(bios_fd, 0, SEEK_SET)) {
				perror("Error while seeking");
				ret = -1;
			}
			if (write(bios_fd, image, size) != size) {
				perror("Error while writing");
				ret = -1;
			}
		}
	}

	free(image);
	close(bios_fd);

	return ret < 0 ? 1 : 0;
}