H_OUTPUT
if (!strcmp(arg, "-") && how == H_OUTPUT)
else if (how == H_OUTPUT)
return (new tape_dev(fd, arg, how == H_OUTPUT));
return (new file_set(fd, arg, how == H_OUTPUT));
return (new flat_file(fd, arg, how == H_OUTPUT));
return (new tap_file(fd, arg, how == H_OUTPUT));
output = open_arg(argv[1], H_OUTPUT, rawfile);