get_cipher_by_char again (and put_cipher_by_char)

[Stuart Henderson]

        //Ciphers list. It is stored after the Session ID.
        const unsigned char *ciphers = hello + 44 + sessIDLen;
        int ciphersLen = (ciphers[0] << 8) | ciphers[1];
        ciphers += 2;
        if (ciphersLen) {
            const SSL_METHOD *method = SSLv3_method();
            int cs = method->put_cipher_by_char(NULL, NULL);
            assert(cs > 0);
            for (int i = 0; i < ciphersLen; i += cs) {
                const SSL_CIPHER *c = method->get_cipher_by_char((ciphers + i));
                if (c != NULL) {
                    if (!clientRequestedCiphers.empty())
                        clientRequestedCiphers.append(":");
                    clientRequestedCiphers.append(c->name);
                } else
                    unknownCiphers = true;
            }
        }
        debugs(83, 7, "Ciphers requested by client: " << 
clientRequestedCiphers);

Does anyone have advice on porting this for use wth libressl? Or would
I be better off spending the time working out how to build it with OpenSSL
instead? (It's from ssl proxy code which forwards a client connection to
a server and looks at the serverhello to decide whether to intercept or
splice the connection).