-static void print_record(char *path, struct udevice *dev)
-{
- printf("P: %s\n", path);
- printf("N: %s\n", dev->name);
- printf("S: %s\n", dev->symlink);
- printf("O: %s\n", dev->owner);
- printf("G: %s\n", dev->group);
- printf("\n");
-}
-
-enum query_type {
- NONE,
- NAME,
- SYMLINK,
- OWNER,
- GROUP
-};
-
-static inline int udev_user(int argc, char **argv)
-{
- static const char short_options[] = "dp:q:rVh";
- int option;
- int retval = -EINVAL;
- struct udevice dev;
- int root = 0;
- enum query_type query = NONE;
- char result[NAME_SIZE] = "";
- char path[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 '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;
- }
-
- 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_dump(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) {
- if (path[0] == '\0') {
- printf("query needs device path specified\n");
- return -EINVAL;
- }
-
- retval = udevdb_open_ro();
- if (retval != 0) {
- printf("unable to open udev database\n");
- return -EACCES;
- }
- retval = udevdb_get_dev(path, &dev);
- if (retval == 0) {
- 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;
-
- default:
- break;
- }
- printf("%s\n", result);
- } else {
- printf("device not found in udev database\n");
- }
- udevdb_exit();
- return retval;
- }
-
- if (root) {
- printf("%s\n", udev_root);
- return 0;
- }
-
-help:
- printf("Usage: [-pqrdVh]\n"
- " -q TYPE query database for the specified value:\n"
- " 'name' name of device node\n"
- " 'symlink' pointing to node\n"
- " 'owner' of node\n"
- " 'group' of node\n"
- " -p PATH sysfs device path used for query\n"
- " -r print udev root\n"
- " -d dump whole database\n"
- " -V print udev version\n"
- " -h print this help text\n"
- "\n");
- return retval;
-}
-