sk_X509_pop_free
sk_X509_pop_free(ctx->trustedCAs, X509_free);
sk_X509_pop_free(ctx->intermediateCAs, X509_free);
sk_X509_pop_free(certstack, X509_free);
sk_X509_pop_free(signerCerts, X509_free);
sk_X509_pop_free(verified_chain, X509_free);
sk_X509_pop_free(newchain, X509_free);
sk_X509_pop_free(*out, X509_free);
sk_X509_pop_free(trust, X509_free);
sk_X509_pop_free(untrusted, X509_free);
sk_X509_pop_free(encryption_recips, X509_free);
sk_X509_pop_free(untrusted, X509_free);
sk_X509_pop_free(certs, X509_free);
sk_X509_pop_free(sc->session->peer_chain, X509_free);
sk_X509_pop_free(sc->session->peer_chain, X509_free);