ASN1_buf_print
if (ASN1_buf_print(bp, tmp, n, indent + 4) == 0)
if (ASN1_buf_print(bp, priv, privlen, off + 4) == 0)
if (ASN1_buf_print(bp, pub, publen, off + 4) == 0)
if (ASN1_buf_print(bp, ecxkey->privkey, KEYLEN(pkey),
if (ASN1_buf_print(bp, ecxkey->pubkey, KEYLEN(pkey),
int ASN1_buf_print(BIO *bp, const unsigned char *buf, size_t buflen, int off);