Move openssl version compatibility defines into a new header.

1 files changed, 41 insertions, 0 deletions

diff --git a/src/common/compat_openssl.h b/src/common/compat_openssl.h
new file mode 100644
index 0000000000..96c00c7993
--- /dev/null
+++ b/src/common/compat_openssl.h
@@ -0,0 +1,41 @@
+/* Copyright (c) 2001, Matej Pfajfar.
+ * Copyright (c) 2001-2004, Roger Dingledine.
+ * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
+ * Copyright (c) 2007-2015, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+#ifndef TOR_COMPAT_OPENSSL_H
+#define TOR_COMPAT_OPENSSL_H
+
+#include <openssl/opensslv.h> 
+
+/**
+ * \file compat_openssl.h
+ *
+ * \brief compatability definitions for working with different openssl forks
+ **/
+
+#if OPENSSL_VERSION_NUMBER < OPENSSL_V_SERIES(1,0,0)
+#error "We require OpenSSL >= 1.0.0"
+#endif
+
+#if OPENSSL_VERSION_NUMBER < OPENSSL_V_SERIES(1,1,0)
+#define OPENSSL_VERSION SSLEAY_VERSION
+#define OpenSSL_version(v) SSLeay_version(v)
+#define OpenSSL_version_num() SSLeay()
+#define RAND_OpenSSL() RAND_SSLeay()
+#define tor_ERR_remove_cur_thread_state() ERR_remove_state(0)
+#ifndef SSL_get_state
+#define SSL_get_state(ssl) SSL_state(ssl)
+#endif
+#define STATE_IS_SW_SERVER_HELLO(st)       \
+  (((st) == SSL3_ST_SW_SRVR_HELLO_A) ||    \
+   ((st) == SSL3_ST_SW_SRVR_HELLO_B))
+#define OSSL_HANDSHAKE_STATE int
+#else
+#define tor_ERR_remove_cur_thread_state() ERR_remove_thread_state(NULL)
+#define STATE_IS_SW_SERVER_HELLO(st) \
+  ((st) == TLS_ST_SW_SRVR_HELLO)
+#endif
+
+#endif