+ struct option opts[] = {
+ { .name = "device", .has_arg = required_argument, .val = 'd' },
+ { .name = "help", .has_arg = no_argument, .val = 'h' },
+ { .name = "mode", .has_arg = required_argument, .val = 'm' },
+ { .name = "major", .has_arg = required_argument, .val = 'M' },
+ { .name = "minor", .has_arg = required_argument, .val = 'N' },
+ { .name = NULL }
+ };
+ const char *path;
+ mode_t mode = S_IFREG | 0644;
+ dev_t dev = 0;
+ int rc;
+ int c;
+
+ while ((c = getopt_long(argc, argv, "d:hm:M:N:", opts, NULL)) != -1) {
+ switch (c) {
+ case 'd':
+ dev = strtoul(optarg, NULL, 0);
+ break;
+ case 'h':
+ usage(argv[0], 0);
+ case 'm':
+ mode = strtoul(optarg, NULL, 0);
+ break;
+ case 'M':
+ dev = makedev(strtoul(optarg, NULL, 0), minor(dev));
+ break;
+ case 'N':
+ dev = makedev(major(dev), strtoul(optarg, NULL, 0));
+ break;
+ case '?':
+ usage(argv[0], 1);
+ }
+ }
+
+ if (argc - optind != 1)
+ usage(argv[0], 1);
+
+ path = argv[optind];
+
+ if ((mode & S_IFMT) == S_IFDIR)
+ rc = mkdir(path, mode & ~S_IFMT);
+ else if ((mode & S_IFMT) == S_IFLNK)
+ rc = symlink("oldpath", path);
+ else
+ rc = mknod(path, mode, dev);
+
+ if (rc) {
+ rc = errno;
+ fprintf(stderr, "%s: cannot create `%s' with mode %#o: %s\n",
+ argv[0], path, mode, strerror(rc));
+ }
+
+ return rc;