From 28f375974a21342f3ae4c39f0a4df17570d89e69 Mon Sep 17 00:00:00 2001
From: Steven Fackler <sfackler@gmail.com>
Date: Mon, 31 Oct 2016 19:56:03 -0700
Subject: [PATCH] Convert Dh

---
 openssl/src/dh.rs      | 31 ++-----------------------------
 openssl/src/ssl/mod.rs |  5 +++--
 2 files changed, 5 insertions(+), 31 deletions(-)

diff --git a/openssl/src/dh.rs b/openssl/src/dh.rs
index 5c5ea05e..4ae145d6 100644
--- a/openssl/src/dh.rs
+++ b/openssl/src/dh.rs
@@ -3,25 +3,12 @@ use error::ErrorStack;
 use bio::MemBioSlice;
 use std::ptr;
 use std::mem;
-use std::ops::Deref;
 
 use {cvt, cvt_p};
 use bn::BigNum;
-use opaque::Opaque;
+use types::OpenSslType;
 
-pub struct DhRef(Opaque);
-
-impl DhRef {
-    pub unsafe fn from_ptr<'a>(ptr: *mut ffi::DH) -> &'a DhRef {
-        &*(ptr as *mut _)
-    }
-
-    pub fn as_ptr(&self) -> *mut ffi::DH {
-        self as *const _ as *mut _
-    }
-}
-
-pub struct Dh(*mut ffi::DH);
+type_!(Dh, ffi::DH, ffi::DH_free);
 
 impl Dh {
     pub fn from_params(p: BigNum, g: BigNum, q: BigNum) -> Result<Dh, ErrorStack> {
@@ -63,20 +50,6 @@ impl Dh {
     }
 }
 
-impl Drop for Dh {
-    fn drop(&mut self) {
-        unsafe { ffi::DH_free(self.0) }
-    }
-}
-
-impl Deref for Dh {
-    type Target = DhRef;
-
-    fn deref(&self) -> &DhRef {
-        unsafe { DhRef::from_ptr(self.0) }
-    }
-}
-
 #[cfg(ossl110)]
 mod compat {
     pub use ffi::DH_set0_pqg;
diff --git a/openssl/src/ssl/mod.rs b/openssl/src/ssl/mod.rs
index 5466f26e..695b2382 100644
--- a/openssl/src/ssl/mod.rs
+++ b/openssl/src/ssl/mod.rs
@@ -91,7 +91,7 @@ use std::marker::PhantomData;
 use ffi;
 
 use {init, cvt, cvt_p};
-use dh::DhRef;
+use dh::Dh;
 use ec_key::EcKeyRef;
 use x509::{X509StoreContextRef, X509FileType, X509, X509Ref, X509VerifyError};
 #[cfg(any(ossl102, ossl110))]
@@ -99,6 +99,7 @@ use verify::X509VerifyParamRef;
 use pkey::PKeyRef;
 use error::ErrorStack;
 use opaque::Opaque;
+use types::Ref;
 
 mod error;
 mod connector;
@@ -513,7 +514,7 @@ impl SslContextBuilder {
         }
     }
 
-    pub fn set_tmp_dh(&mut self, dh: &DhRef) -> Result<(), ErrorStack> {
+    pub fn set_tmp_dh(&mut self, dh: &Ref<Dh>) -> Result<(), ErrorStack> {
         unsafe { cvt(ffi::SSL_CTX_set_tmp_dh(self.as_ptr(), dh.as_ptr()) as c_int).map(|_| ()) }
     }