null_context_old = gss_context_old->internal_ctx_id;
memcpy(null_context_new, null_context_old, sizeof(*null_context_new));
gss_context_new->internal_ctx_id = null_context_new;
null_context_old = gss_context_old->internal_ctx_id;
memcpy(null_context_new, null_context_old, sizeof(*null_context_new));
gss_context_new->internal_ctx_id = null_context_new;