PATH_RAMFILE
fd = open(PATH_RAMFILE, O_RDONLY);
fd = creat(PATH_RAMFILE, 0666);
err(1, "Creating %s", PATH_RAMFILE);
err(1, "Writing %s", PATH_RAMFILE);
fd = open(PATH_RAMFILE, O_RDONLY);
err(1, "Opening %s", PATH_RAMFILE);
err(1, "reading %s", PATH_RAMFILE);
sramfd = open(PATH_RAMFILE, O_WRONLY);
err(1, "Opening %s", PATH_RAMFILE);
err(1, "Writing %s", PATH_RAMFILE);