python: Pass $PYTHON environment variable to tests.

[libguestfs.git] / generator / generator_utils.ml

diff --git a/generator/generator_utils.ml b/generator/generator_utils.ml
index 27b543d..4180c0d 100644 (file)
--- a/generator/generator_utils.ml
+++ b/generator/generator_utils.ml
@@ -1,5 +1,5 @@
 (* libguestfs
- * Copyright (C) 2009-2010 Red Hat Inc.
+ * Copyright (C) 2009-2011 Red Hat Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -28,6 +28,21 @@ open Printf
 
 open Generator_types
 
+let errcode_of_ret = function
+  | RConstOptString _ ->
+      `CannotReturnError
+  | RErr | RInt _ | RBool _ | RInt64 _ ->
+      `ErrorIsMinusOne
+  | RConstString _
+  | RString _ | RBufferOut _
+  | RStringList _ | RHashtable _
+  | RStruct _ | RStructList _ ->
+      `ErrorIsNULL
+
+let string_of_errcode = function
+  | `ErrorIsMinusOne -> "-1"
+  | `ErrorIsNULL -> "NULL"
+
 (* Generate a uuidgen-compatible UUID (used in tests).  However to
  * avoid having the UUID change every time we rebuild the tests,
  * generate it as a function of the contents of the
@@ -40,6 +55,14 @@ open Generator_types
  *)
 let uuidgen () =
   let s = Digest.to_hex (Digest.file "generator/generator_actions.ml") in
+
+  (* In util-linux <= 2.19, mkswap -U cannot handle the first byte of
+   * the UUID being zero, so we artificially rewrite such UUIDs.
+   * http://article.gmane.org/gmane.linux.utilities.util-linux-ng/4273
+   *)
+  if s.[0] = '0' && s.[1] = '0' then
+    s.[0] <- '1';
+
   String.sub s 0 8 ^ "-"
   ^ String.sub s 8 4 ^ "-"
   ^ String.sub s 12 4 ^ "-"