Updated stdnse.get_script_args() function to take arrays in addition to strings. If an array is passed, currently, the first name is considered 'valid' and the others are considered 'deprecated'. This behaviour is still under discussion.

nselib/stdnse.lua

@@ -589,14 +589,29 @@ function get_script_args (...)
   local args, args_num = {}, select("#", ...)
 
   for i = 1, args_num do
-    local option = select(i, ...)
+    local options = select(i, ...)
 
-    if nmap.registry.args[option] then
-      args[i] = nmap.registry.args[option]
-    else
-      for _, v in ipairs(nmap.registry.args) do
-        if v == option then
-          args[i] = 1
+    if(type(options) == 'string') then
+      options = {options}
+    end
+
+    -- Save the first option (which will be the primary, non-deprecated one)
+    local first_option = options[1]
+
+    for _, option in ipairs(options) do
+      if nmap.registry.args[option] then
+        if(option ~= first_option) then
+          print_debug(1, "WARNING: Option '%s' is deprecated; use '%s' instead.", option, first_option)
+        end
+        args[i] = nmap.registry.args[option]
+      else
+        for _, v in ipairs(nmap.registry.args) do
+          if v == option then
+            if(option ~= first_option) then
+              print_debug(1, "WARNING: Option '%s' is deprecated; use '%s' instead.", option, first_option)
+            end
+            args[i] = 1
+          end
         end
       end
     end