uuid-win32.diff

diff --git a/src/uuid.cc b/src/uuid.cc
index ff0d6ec..9ab9647 100644
--- a/src/uuid.cc
+++ b/src/uuid.cc
@@ -2,14 +2,29 @@
 #include <node.h>
 #include <node_object_wrap.h>
 #include <assert.h>
+
+#ifdef _WIN32
+#include <Objbase.h>
+typedef GUID uuid_t;
+#else
 #include <uuid/uuid.h>
+#endif
+
 #include <ctype.h>
 #undef UUID_STR_LEN
 #define UUID_STR_LEN 36
+
 static inline void my_uuid_unparse_lower(uuid_t in, char *out) {
   int i;
+#ifdef _WIN32
+  int j;
+  wchar_t ostr[UUID_STR_LEN + 3];
+  StringFromGUID2(in, (LPOLESTR)ostr, UUID_STR_LEN + 3);
+  for(i=1, j=0; i < UUID_STR_LEN + 1; i++, j++) out[j] = tolower(ostr[i]);
+#else
   uuid_unparse(in, out);
-  for(i=0;i<36;i++) out[i] = tolower(out[i]);
+  for(i=0;i<UUID_STR_LEN;i++) out[i] = tolower(out[i]);
+#endif
 }
 
 using namespace v8;
@@ -28,14 +43,21 @@ class libuuid {
 
   protected:
     static Handle<Value> Create(const Arguments& args) {
-      uuid_t id;
       HandleScope scope;
-      char uuid_str[37];
+      uuid_t id;
+      char uuid_str[UUID_STR_LEN + 1];
+
+#ifdef _WIN32
+      if (CoCreateGuid(&id) != S_OK) {
+        v8::ThrowException(v8::Exception::Error(String::New("Failed to create GUID")));
+	return scope.Close(Undefined());
+      }
+#else
       uuid_generate(id);
+#endif
 
       my_uuid_unparse_lower(id, uuid_str);
       String::New(uuid_str);
-
       return scope.Close(String::New(uuid_str));
     }