Fix .so files loading

rebar.config

@@ -20,15 +20,18 @@
 %%%
 %%%----------------------------------------------------------------------
 
-{require_min_otp_vsn, "16"}.
+{require_min_otp_vsn, "R16"}.
 
 {erl_opts, [debug_info, {src_dirs, ["src"]}]}.
 
-{port_env, [{"CFLAGS", "$CFLAGS"}, {"LDFLAGS", "$LDFLAGS"}]}.
+{port_env, [{"CFLAGS", "$CFLAGS"}, {"LDFLAGS", "$LDFLAGS -lssl -lcrypto"}]}.
+
+{port_specs, [{"priv/lib/p1_tls_drv.so", ["c_src/p1_tls_drv.c"]},
+              {"priv/lib/p1_sha.so", ["c_src/p1_sha.c"]}]}.
 
 {deps, [{p1_utils, ".*", {git, "git://github.com/processone/p1_utils", {tag, "1.0.2"}}}]}.
 
-{clean_files, ["c_src/p1_tls.gcda", "c_src/p1_tls.gcno",
+{clean_files, ["c_src/p1_tls_drv.gcda", "c_src/p1_tls_drv.gcno",
                "c_src/p1_sha.gcda", "c_src/p1_sha.gcno"]}.
 
 {cover_enabled, true}.

src/p1_tls.erl

@@ -402,13 +402,10 @@ cert_verify_code(X) ->
 integer_to_binary(I) ->
     list_to_binary(integer_to_list(I)).
 
-get_so_path() ->
-    EbinDir = filename:dirname(code:which(?MODULE)),
-    AppDir = filename:dirname(EbinDir),
-    filename:join([AppDir, "priv", "lib"]).
-
 load_driver() ->
-    case erl_ddll:load_driver(get_so_path(), p1_tls_drv) of
+    SOPath = p1_nif_utils:get_so_path(p1_tls, [fast_tls, p1_tls], "p1_tls_drv"),
+    Dir = filename:dirname(SOPath),
+    case erl_ddll:load_driver(Dir, "p1_tls_drv") of
         ok ->
             ok;
         {error, already_loaded} ->