+# ifndef OPENSSL_NO_HEARTBEATS
+# define SSL_DTLSEXT_HB_ENABLED 0x01
+# define SSL_DTLSEXT_HB_DONT_SEND_REQUESTS 0x02
+# define SSL_DTLSEXT_HB_DONT_RECV_REQUESTS 0x04
+# define SSL_get_dtlsext_heartbeat_pending(ssl) \
+ SSL_ctrl((ssl),SSL_CTRL_GET_DTLS_EXT_HEARTBEAT_PENDING,0,NULL)
+# define SSL_set_dtlsext_heartbeat_no_requests(ssl, arg) \
+ SSL_ctrl((ssl),SSL_CTRL_SET_DTLS_EXT_HEARTBEAT_NO_REQUESTS,arg,NULL)
+
+# if OPENSSL_API_COMPAT < 0x10100000L
+# define SSL_CTRL_TLS_EXT_SEND_HEARTBEAT \
+ SSL_CTRL_DTLS_EXT_SEND_HEARTBEAT
+# define SSL_CTRL_GET_TLS_EXT_HEARTBEAT_PENDING \
+ SSL_CTRL_GET_DTLS_EXT_HEARTBEAT_PENDING
+# define SSL_CTRL_SET_TLS_EXT_HEARTBEAT_NO_REQUESTS \
+ SSL_CTRL_SET_DTLS_EXT_HEARTBEAT_NO_REQUESTS
+# define SSL_TLSEXT_HB_ENABLED \
+ SSL_DTLSEXT_HB_ENABLED
+# define SSL_TLSEXT_HB_DONT_SEND_REQUESTS \
+ SSL_DTLSEXT_HB_DONT_SEND_REQUESTS
+# define SSL_TLSEXT_HB_DONT_RECV_REQUESTS \
+ SSL_DTLSEXT_HB_DONT_RECV_REQUESTS
+# define SSL_get_tlsext_heartbeat_pending(ssl) \
+ SSL_get_dtlsext_heartbeat_pending(ssl)
+# define SSL_set_tlsext_heartbeat_no_requests(ssl, arg) \
+ SSL_set_dtlsext_heartbeat_no_requests(ssl, arg)
+# endif
+# endif
+