[Minor] Use portable macro for old OpenSSL

diff --git a/src/lua/lua_rsa.c b/src/lua/lua_rsa.c
index d797e3c19ad1deb68279647bd13bcd542b57521f..4b9aa03546b2550c2df55fd17e8dcba688c8edf8 100644 (file)
--- a/src/lua/lua_rsa.c
+++ b/src/lua/lua_rsa.c
@@ -760,7 +760,7 @@ lua_rsa_sign_memory(lua_State *L)
        data = luaL_checklstring(L, 2, &sz);
 
        if (pkey != NULL && data != NULL) {
-               signature = rspamd_fstring_sized_new(EVP_PKEY_get_size(pkey));
+               signature = rspamd_fstring_sized_new(EVP_PKEY_size(pkey));
 
                EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new(pkey, NULL);
                g_assert(pctx != NULL);