- char *temp;
- char *udev_db = UDEV_DB;
- char *udev_config = UDEV_CONFIG_FILE;
- char *udev_permission = UDEV_CONFIG_PERMISSION_FILE;
- int retval;
-
- retval = sysfs_get_mnt_path(sysfs_path, SYSFS_PATH_MAX);
- if (retval)
- dbg("sysfs_get_mnt_path failed");
-
- /* see if we should try to override any of the default values */
- temp = getenv("UDEV_TEST");
- if (temp != NULL) {
- /* hm testing is happening, use the specified values, if they are present */
- temp = getenv("UDEV_SYSFS_PATH");
- if (temp)
- strncpy(sysfs_path, temp, sizeof(sysfs_path));
- temp = getenv("UDEV_CONFIG_DIR");
- if (temp)
- udev_config_dir = temp;
- temp = getenv("UDEV_ROOT");
- if (temp)
- udev_root = temp;
- temp = getenv("UDEV_DB");
- if (temp)
- udev_db = temp;
- temp = getenv("UDEV_CONFIG_FILE");
- if (temp)
- udev_config = temp;
- temp = getenv("UDEV_PERMISSION_FILE");
- if (temp)
- udev_permission = temp;
+ static const char short_options[] = "q:rVh";
+ int option;
+ int retval = -EINVAL;
+ struct udevice dev;
+
+ while (1) {
+ option = getopt(argc, argv, short_options);
+ if (option == -1)
+ break;
+
+ dbg("option '%c'", option);
+ switch (option) {
+ case 'q':
+ dbg("udev query: %s\n", optarg);
+ retval = udevdb_open_ro();
+ if (retval != 0) {
+ printf("unable to open udev database\n");
+ return -1;
+ }
+ retval = udevdb_get_dev(optarg, &dev);
+ if (retval == 0) {
+ printf("%s\n", dev.name);
+ } else {
+ printf("device not found in udev database\n");
+ }
+ udevdb_exit();
+ return retval;
+
+ case 'r':
+ printf("%s\n", udev_root);
+ return 0;
+
+ case 'V':
+ printf("udev, version %s\n", UDEV_VERSION);
+ return 0;
+
+ case 'h':
+ retval = 0;
+ case '?':
+ default:
+ goto help;
+ }