+static void
+print_vdev_tree(libzfs_handle_t *hdl, const char *name, nvlist_t *nv,
+ int indent)
+{
+ nvlist_t **child;
+ uint_t c, children;
+ char *vname;
+ uint64_t is_log = 0;
+
+ (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG,
+ &is_log);
+
+ if (name != NULL)
+ (void) printf("\t%*s%s%s\n", indent, "", name,
+ is_log ? " [log]" : "");
+
+ if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
+ &child, &children) != 0)
+ return;
+
+ for (c = 0; c < children; c++) {
+ vname = zpool_vdev_name(hdl, NULL, child[c], B_TRUE);
+ print_vdev_tree(hdl, vname, child[c], indent + 2);
+ free(vname);
+ }
+}
+