Give precedence to vector push function

diff --git a/lib/gnutls_buffers.c b/lib/gnutls_buffers.c
index ef2ad236b322ba883bba5c48ba091bed978bf383..e4279a229e841b3854deece69a105c00df51dd61 100644 (file)
--- a/lib/gnutls_buffers.c
+++ b/lib/gnutls_buffers.c
@@ -483,11 +483,13 @@ _gnutls_writev(gnutls_session_t session, const giovec_t * giovec,
                }
        }
 
-       if (session->internals.push_func != NULL || no_writev != 0)
-               i = _gnutls_writev_emu(session, fd, giovec, giovec_cnt);
-       else
+       if (session->internals.vec_push_func != NULL && no_writev == 0)
                i = session->internals.vec_push_func(fd, giovec,
                                                     giovec_cnt);
+       else if (session->internals.push_func)
+               i = _gnutls_writev_emu(session, fd, giovec, giovec_cnt);
+       else
+               return gnutls_assert_val(GNUTLS_E_INTERNAL_ERROR);
 
        if (i == -1) {
                int err = get_errno(session);