SSL_client_hello_get0_ciphers
size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out);
if (p == NULL || SSL_client_hello_get0_random(s, &p) == 0 || SSL_client_hello_get0_ciphers(s, &p) == 0 || SSL_client_hello_get0_compression_methods(s, &p) == 0) {
len = SSL_client_hello_get0_ciphers(s, &p);