PEM_read_X509
LCRYPTO_USED(PEM_read_X509);
LCRYPTO_ALIAS(PEM_read_X509);
cert = PEM_read_X509(certfp, NULL, NULL, NULL);
cert = PEM_read_X509(certfp, NULL, NULL);
if ((x = PEM_read_X509(f, NULL, NULL, NULL)) == NULL) {
X509* x = PEM_read_X509(in, NULL, NULL, NULL);