Fail gracefully in the face of a corrupted thread.

1 files changed, 4 insertions, 0 deletions

diff --git a/telem.lua b/telem.lua
index 0bd6cb3..f4aec34 100755
--- a/telem.lua
+++ b/telem.lua
@@ -426,6 +426,10 @@ function do_type()
 	end
 	current_thread = current_board_threads[thread_id]
 	current_thread_posts = get_posts(current_thread)
+	if current_thread == nil or #current_thread_posts == 0 then
+		print("This thread appears corrupted!  Aborting.")
+		return
+	end
 	current_post_index = #current_thread_posts
 	do_type_show_post()
 	dispatch_loop(type_dispatch, "d",