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authorkwolekr <kwolekr@minetest.net>2015-01-27 22:36:53 -0500
committerkwolekr <kwolekr@minetest.net>2015-01-27 22:36:53 -0500
commita8ec7876a68cb4abbf2d517526822f17d7ac0efc (patch)
treea3d7db13b6113d6a92ec5e86deb4d87d823409da /builtin
parentad690c46b10423b23d515bda0e89228b51f5b5e9 (diff)
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Prevent null concatenation when /deleteblocks is provided an incorrect format
Diffstat (limited to 'builtin')
-rw-r--r--builtin/game/chatcommands.lua4
1 files changed, 4 insertions, 0 deletions
diff --git a/builtin/game/chatcommands.lua b/builtin/game/chatcommands.lua
index 8ce1cfef5..2d94817e8 100644
--- 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)