回复: [Boost.Asio] [SSL] C an I set the host name before performing a ha ndshake?

Thanks a lot. It's helpful
________________________________
发件人: Boost-users <[email protected]> 代表 Richard Hodges via Boost-users <[email protected]>
发送时间: 2022年5月1日 18:14
收件人: Thomas Quarendon via Boost-users <[email protected]>
抄送: Richard Hodges <[email protected]>
主题: Re: [Boost-users] [Boost.Asio] [SSL] Can I set the host name before performing a handshake?



On Sun, 1 May 2022 at 09:11, B Aleck via Boost-users <[email protected]<mailto:[email protected]>> wrote:
In openssl you call SSL_set_tlsext_host_name to set that
Can I do that in boost?

Yes.

Example from one of my projects:

asio::awaitable< void >
connect(ssl::stream< tcp::socket > &stream, std::string const &host, std::string const &service)
{
    using asio::use_awaitable;

    co_await connect(stream.next_layer(), host, service);

    // ==================== Set TLS host name here ====================

    if (!SSL_set_tlsext_host_name(stream.native_handle(), host.c_str()))
        throw sys::system_error(ERR_get_error(), asio::error::get_ssl_category());

    // ================================================================

    co_await stream.async_handshake(ssl::stream_base::client, use_awaitable);
}



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