uuid: Break code to read /dev/urandom into a new module.

This code is useful for seeding other random number generators, so we might
as well make it a separate source file.

1 files changed, 24 insertions, 0 deletions

diff --git a/lib/entropy.h b/lib/entropy.h
new file mode 100644
index 00000000..6d256e0b
--- /dev/null
+++ b/lib/entropy.h
@@ -0,0 +1,24 @@
+/* Copyright (c) 2010 Nicira Networks
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ENTROPY_H
+#define ENTROPY_H 1
+
+#include <stddef.h>
+
+int get_entropy(void *, size_t);
+void get_entropy_or_die(void *, size_t);
+
+#endif /* entropy.h */