Called to create a new connection on top of the given stream. If
this is a TLS stream, then this function may be used to proxy a
TLS stream over an HTTP CONNECT session. If this is unset, then
HTTP CONNECT proxies will not be supported.
@param out_ The created stream
@param in An existing stream to add TLS to
@param host The hostname that the stream is connected to,
for certificate validation
@return 0 or an error code
Called to create a new connection on top of the given stream. If this is a TLS stream, then this function may be used to proxy a TLS stream over an HTTP CONNECT session. If this is unset, then HTTP CONNECT proxies will not be supported.
@param out_ The created stream @param in An existing stream to add TLS to @param host The hostname that the stream is connected to, for certificate validation @return 0 or an error code