Allow access to ssl::SslStream for advanced usage

[GrahamBarnett]

Please add accessors to get to the ssl::SslStream.

It would help a lot as we currently have to patch tokio-native-tls and native-tls just to add this accessor.

I am happy to do a a PR rather than a diff if I can get access.

Many thanks !

diff --git a/src/imp/openssl.rs b/src/imp/openssl.rs
index 8fc4362..12775ab 100644
--- a/src/imp/openssl.rs
+++ b/src/imp/openssl.rs
@@ -401,6 +401,14 @@ impl<S> TlsStream<S> {
     pub fn get_mut(&mut self) -> &mut S {
         self.0.get_mut()
     }
+
+    pub fn get_inner_ref(&self) -> &ssl::SslStream<S> {
+        &self.0
+    }
+
+    pub fn get_inner_mut(&mut self) -> &mut ssl::SslStream<S> {
+        &mut self.0
+    }
 }

 impl<S: io::Read + io::Write> TlsStream<S> {
diff --git a/src/lib.rs b/src/lib.rs
index cc86502..8b85946 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -664,6 +664,16 @@ impl<S> TlsStream<S> {
     pub fn get_mut(&mut self) -> &mut S {
         self.0.get_mut()
     }
+
+    /// Returns a shared reference to the inner object
+    pub fn get_inner_ref(&self) -> &imp::TlsStream<S> {
+        &self.0
+    }
+
+    /// Returns a mutable reference to the inner object
+    pub fn get_inner_mut(&mut self) -> &mut imp::TlsStream<S> {
+        &mut self.0
+    }
 }

 impl<S: io::Read + io::Write> TlsStream<S> {

[sfackler]

https://github.com/sfackler/rust-native-tls/issues/283