OpenSSL::SSL::SSLSocket#npn_protocol

() -> ::String?

ssl.npn_protocol => String | nil

static VALUE
ossl_ssl_npn_protocol(VALUE self)
{
    SSL *ssl;
    const unsigned char *out;
    unsigned int outlen;

    GetSSL(self, ssl);

    SSL_get0_next_proto_negotiated(ssl, &out, &outlen);
    if (!outlen)
        return Qnil;
    else
        return rb_str_new((const char *) out, outlen);
}

Returns the protocol string that was finally selected by the client during the handshake.

See also #hostname= #peer_cert #finished_message #peer_cert_chain also in 4.1 · 4.0 · 3.3 · 3.2 · 3.1 · 3.0

‹ prev#hostname= next ›#peer_cert