- struct udevice dev;
- int root = 0;
- enum query_type query = NONE;
- char result[NAME_SIZE] = "";
- char path[NAME_SIZE] = "";
- char name[NAME_SIZE] = "";
-
- /* get command line options */
- while (1) {
- option = getopt(argc, argv, short_options);
- if (option == -1)
- break;
-
- dbg("option '%c'", option);
- switch (option) {
- case 'n':
- dbg("udev name: %s\n", optarg);
- strfieldcpy(name, optarg);
- break;
-
- case 'p':
- dbg("udev path: %s\n", optarg);
- strfieldcpy(path, optarg);
- break;
-
- case 'q':
- dbg("udev query: %s\n", optarg);
-
- if (strcmp(optarg, "name") == 0) {
- query = NAME;
- break;
- }
-
- if (strcmp(optarg, "symlink") == 0) {
- query = SYMLINK;
- break;
- }
-
- if (strcmp(optarg, "owner") == 0) {
- query = OWNER;
- break;
- }
-
- if (strcmp(optarg, "group") == 0) {
- query = GROUP;
- break;
- }
-
- if (strcmp(optarg, "path") == 0) {
- query = PATH;
- break;
- }
-
- printf("unknown query type\n");
- return -EINVAL;
-
- case 'r':
- root = 1;
- break;
-
- case 'd':
- retval = udevdb_open_ro();
- if (retval != 0) {
- printf("unable to open udev database\n");
- return -EACCES;
- }
- retval = udevdb_call_foreach(print_record);
- udevdb_exit();
- return retval;
-
- case 'V':
- printf("udev, version %s\n", UDEV_VERSION);
- return 0;
-
- case 'h':
- retval = 0;
- case '?':
- default:
- goto help;
- }
- }
-
- /* process options */
- if (query != NONE) {
- retval = udevdb_open_ro();
- if (retval != 0) {
- printf("unable to open udev database\n");
- return -EACCES;
- }
-
- if (path[0] != '\0') {
- retval = udevdb_get_dev(path, &dev);
- if (retval != 0) {
- printf("device not found in database\n");
- goto exit;
- }
- goto print;
- }
-
- if (name[0] != '\0') {
- retval = udevdb_get_dev_byname(name, path, &dev);
- if (retval != 0) {
- printf("device not found in database\n");
- goto exit;
- }
- goto print;
- }
-
- printf("query needs device path(-p) or node name(-n) specified\n");
- goto exit;
-
-print:
- switch(query) {
- case NAME:
- if (root)
- strfieldcpy(result, udev_root);
- strncat(result, dev.name, sizeof(result));
- break;
-
- case SYMLINK:
- strfieldcpy(result, dev.symlink);
- break;
-
- case GROUP:
- strfieldcpy(result, dev.group);
- break;
-
- case OWNER:
- strfieldcpy(result, dev.owner);
- break;
-
- case PATH:
- strfieldcpy(result, path);
- break;