ossl_core_bio_new_from_bio
if ((cbio = ossl_core_bio_new_from_bio(bio)) == NULL) {
ok = (cbio = ossl_core_bio_new_from_bio(current_out)) != NULL;
OSSL_CORE_BIO *cbio = ossl_core_bio_new_from_bio(bp);
OSSL_CORE_BIO *ossl_core_bio_new_from_bio(BIO *bio);