Add support for OpenSSL 1.1.0

zyklonb.c

@@ -2011,11 +2011,16 @@ main (int argc, char *argv[])
 	print_status (PROGRAM_NAME " " PROGRAM_VERSION " starting");
 	setup_signal_handlers ();
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
 	SSL_library_init ();
+	// XXX: this list is probably not complete
 	atexit (EVP_cleanup);
 	SSL_load_error_strings ();
-	// XXX: ERR_load_BIO_strings()?  Anything else?
 	atexit (ERR_free_strings);
+#else
+	// Cleanup is done automatically via atexit()
+	OPENSSL_init_ssl (0, NULL);
+#endif
 
 	struct bot_context ctx;
 	bot_context_init (&ctx);