Prevent null concatenation when /deleteblocks is provided an incorrect format

2015-01-27 22:36:53 -05:00 · 2015-01-27 22:36:53 -05:00 · a8ec7876a6
parent ad690c46b1
commit a8ec7876a6
1 changed files with 4 additions and 0 deletions
--- a/builtin/game/chatcommands.lua
+++ b/builtin/game/chatcommands.lua
@ -420,6 +420,10 @@ core.register_chatcommand("deleteblocks", {
 			p2 = p1
 		else
 			local pos1, pos2 = unpack(param:split(") ("))
+			if pos1 == nil or pos2 == nil then
+				return false, "Incorrect area format. Expected: (x1,y1,z1) (x2,y2,z2)"
+			end
+
 			p1 = core.string_to_pos(pos1 .. ")")
 			p2 = core.string_to_pos("(" .. pos2)