- /* 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;
-}