From ea7416a993694df4e81edfc8ff38ca2150c269c9 Mon Sep 17 00:00:00 2001
From: Paul Kehrer <paul.l.kehrer@gmail.com>
Date: Thu, 20 Feb 2014 22:27:43 -0600
Subject: add a comment to explain this damn function

---
 cryptography/hazmat/bindings/openssl/osrandom_engine.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cryptography/hazmat/bindings/openssl/osrandom_engine.py b/cryptography/hazmat/bindings/openssl/osrandom_engine.py
index 01e0c5dd..750cc435 100644
--- a/cryptography/hazmat/bindings/openssl/osrandom_engine.py
+++ b/cryptography/hazmat/bindings/openssl/osrandom_engine.py
@@ -174,6 +174,8 @@ static RAND_METHOD osrandom_rand = {
     osrandom_rand_status,
 };
 
+/* Returns 1 if successfully added, 2 if engine has previously been added,
+   and 0 for error. */
 int Cryptography_add_osrandom_engine(void) {
     ENGINE *osrandom_engine = ENGINE_by_id(Cryptography_osrandom_engine_id);
     if (osrandom_engine != NULL) {
-- 
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