* SilcClientConnection conn,
* SilcChannelEntry channel,
* SilcChannelPrivateKey key,
* SilcMessageFlags flags,
* unsigned char *data,
* SilcUInt32 data_len,
* SilcClientConnection conn,
* SilcChannelEntry channel,
* SilcChannelPrivateKey key,
* SilcMessageFlags flags,
* unsigned char *data,
* SilcUInt32 data_len,