X509_PUBKEY_free
X509_PUBKEY_free(*x);
X509_PUBKEY_free(pk);
X509_PUBKEY_free(xpk);
X509_PUBKEY_free(xpk);
X509_PUBKEY_free(pub);
X509_PUBKEY_free(log_pkey);
void X509_PUBKEY_free(X509_PUBKEY *a);