X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=generator%2Fgenerator_xdr.ml;h=5714c803fbbcfbef30a48ef9847d492581bb96cf;hb=f341624668d10c58e2899354cef1e11c4175992a;hp=ca114c5921ec2d430aede04cf78a97023a37408a;hpb=3aa8182c3cc478bf723205f1a4dd84e160768448;p=libguestfs.git

diff --git a/generator/generator_xdr.ml b/generator/generator_xdr.ml
index ca114c5..5714c80 100644
--- a/generator/generator_xdr.ml
+++ b/generator/generator_xdr.ml
@@ -65,12 +65,14 @@ let generate_xdr () =
 
   List.iter (
     fun (shortname, (ret, args, optargs), _, _, _, _, _) ->
-      if optargs <> [] then
-        failwithf "optional arguments not supported in XDR yet";
-
       let name = "guestfs_" ^ shortname in
 
-      (match args with
+      (* Ordinary arguments and optional arguments are concatenated
+       * together in the XDR args struct.  The optargs_bitmask field
+       * in the header controls which optional arguments are
+       * meaningful.
+       *)
+      (match args @ optargs with
        | [] -> ()
        | args ->
            pr "struct %s_args {\n" name;