codesys-v2-discover.nse.diff

➜  Redpoint git:(master) ✗ git diff
diff --git a/codesys-v2-discover.nse b/codesys-v2-discover.nse
index f50e502..e3c73ef 100644
--- a/codesys-v2-discover.nse
+++ b/codesys-v2-discover.nse
@@ -56,9 +56,9 @@ end
 -- @param port port that was scanned via nmap
 action = function( host, port )
   -- little endian query
-  lile_query = bin.pack("H", "bbbb0100000001")
+  lile_query = string.pack("s16", "bbbb0100000001")
   -- big endian query
-  bige_query = bin.pack("H", "bbbb0100000101")
+  bige_query = string.pack("s16", "bbbb0100000101")
   -- set up table for output
   local output = stdnse.output_table()
   -- create socket
@@ -106,16 +106,16 @@ action = function( host, port )
     end
   end
   -- unpack first byte to see if it is 0xbb
-  local pos, codesys_check = bin.unpack("C", response, 1)
+  local pos, codesys_check = string.unpack("I1", response, 1)
   -- is first byte 0xbb?
   if (codesys_check ~= 0xbb) then
     sock:close()
     return nil
   end 
 
-  local pos, os_name = bin.unpack("z", response, 65)
-  local pos , os_type = bin.unpack("z", response, 97)
-  local pos, product_type = bin.unpack("z", response, 129)
+  local pos, os_name = string.unpack("z", response, 65)
+  local pos , os_type = string.unpack("z", response, 97)
+  local pos, product_type = string.unpack("z", response, 129)
   -- close socket
   sock:close()
   -- set nmap port