From 6d2f8d67f2423ba6a337359ecf0188bd52227dce Mon Sep 17 00:00:00 2001
From: Ummon <greg.burri@gmail.com>
Date: Wed, 10 Dec 2014 22:25:32 +0100
Subject: Add the openssl function prototype 'HMAC_CTX_cleanup'.

---
 src/crypto/hmac.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src')

diff --git a/src/crypto/hmac.rs b/src/crypto/hmac.rs
index a7a854b7..8096a948 100644
--- a/src/crypto/hmac.rs
+++ b/src/crypto/hmac.rs
@@ -61,6 +61,14 @@ impl HMAC {
     }
 }
 
+impl Drop for HMAC {
+    fn drop(&mut self) {
+        unsafe {
+            ffi::HMAC_CTX_cleanup(&mut self.ctx);
+        }
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use serialize::hex::FromHex;
-- 
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