except the pointers returned are not constant and can be modified:
for example to initialise them.
+=head1 RETURN VALUES
+
+X509_SIG_get0() and X509_SIG_getm() return no values.
+
=head1 SEE ALSO
L<d2i_X509(3)>
=head1 COPYRIGHT
-Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved.
+Copyright 2002-2018 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy