sk_X509_free
sk_X509_free(signers);
sk_X509_free(untrusted);
sk_X509_free(signers);
sk_X509_free(signers);
sk_X509_free(signers);
sk_X509_free(signers);
sk_X509_free(signers);
sk_X509_free(signers);
sk_X509_free(signers);
sk_X509_free(signers);
sk_X509_free(sktmp);
sk_X509_free(combined);
sk_X509_free(certs);
sk_X509_free(certs);
sk_X509_free(certs);
sk_X509_free(certs);
sk_X509_free(signers);
sk_X509_free(signers);
sk_X509_free(morecerts);
sk_X509_free(chain2);
sk_X509_free(signers);
sk_X509_free(signers);
sk_X509_free(certs);
sk_X509_free(intermediates);
sk_X509_free(root);
sk_X509_free(intermediates);
sk_X509_free(root);
sk_X509_free(signers);
sk_X509_free(validsigners);
sk_X509_free(signers);
sk_X509_free(validsigners);