+ char device[PATH_SIZE];
+ char filename[PATH_SIZE * 2];
+ size_t start;
+ int fd;
+
+ /* directory with device name */
+ strlcpy(filename, udev_root, sizeof(filename));
+ start = strlcat(filename, "/"DB_NAME_INDEX_DIR"/", sizeof(filename));
+ strlcat(filename, name, sizeof(filename));
+ path_encode(&filename[start], sizeof(filename) - start);
+ /* entry with the devpath */
+ strlcpy(device, devpath, sizeof(device));
+ path_encode(device, sizeof(device));
+ strlcat(filename, "/", sizeof(filename));
+ strlcat(filename, device, sizeof(filename));
+
+ if (add) {
+ info("creating index: '%s'", filename);
+ create_path(filename);
+ fd = open(filename, O_WRONLY|O_TRUNC|O_CREAT, 0644);
+ if (fd > 0)
+ close(fd);
+ } else {
+ info("removing index: '%s'", filename);
+ unlink(filename);
+ delete_path(filename);
+ }
+ return 0;
+}
+
+int udev_db_get_devices_by_name(const char *name, struct list_head *name_list)
+{
+ char dirname[PATH_MAX];
+ size_t start;
+ DIR *dir;
+ int rc = 0;
+
+ strlcpy(dirname, udev_root, sizeof(dirname));
+ start = strlcat(dirname, "/"DB_NAME_INDEX_DIR"/", sizeof(dirname));
+ strlcat(dirname, name, sizeof(dirname));
+ path_encode(&dirname[start], sizeof(dirname) - start);
+
+ dir = opendir(dirname);
+ if (dir == NULL) {
+ info("no index directory '%s': %s", dirname, strerror(errno));
+ rc = -1;
+ goto out;
+ }
+
+ info("found index directory '%s'", dirname);
+ while (1) {
+ struct dirent *ent;
+ char device[PATH_SIZE];
+
+ ent = readdir(dir);
+ if (ent == NULL || ent->d_name[0] == '\0')
+ break;
+ if (ent->d_name[0] == '.')
+ continue;
+
+ strlcpy(device, ent->d_name, sizeof(device));
+ path_decode(device);
+ name_list_add(name_list, device, 0);
+ rc++;
+ }
+ closedir(dir);
+out:
+ return rc;
+}
+
+int udev_db_rename(const char *devpath_old, const char *devpath)
+{
+ char filename[PATH_SIZE];
+ char filename_old[PATH_SIZE];
+
+ devpath_to_db_path(devpath_old, filename_old, sizeof(filename_old));
+ devpath_to_db_path(devpath, filename, sizeof(filename));
+ return rename(filename_old, filename);