lintodev
dev_t lintodev();
linedev = lintodev(optarg);
tbuf[tsize].tdev = lintodev(wb.ut_line);
dev_t lintodev();
tbuf[tsize].tdev = lintodev(wb.ut_line);
dev_t lintodev();
if (lintodev(file_name+5) == device) {
dev_t lintodev();