kgss_transfer_context
res.major_status = kgss_transfer_context(ctx, NULL);
res.major_status = kgss_transfer_context(ctx, &res.lucid);
res.major_status = kgss_transfer_context(ctx, NULL);
res.major_status = kgss_transfer_context(ctx, &res.lucid);
extern OM_uint32 kgss_transfer_context(gss_ctx_id_t ctx, void *lctx);