rfbFileTransferProtocol

[pyromanci]

Ok,

I've been working on a android vnc server (for my personal use/experimenting). I've taken some existing projects and have been able to port them over just fine. One feature I would like to play with implementing is the file transfer feature.

While shifting through the code and a few clients code. I have been having a hard time coming up with how the client/server tells the other "hey I support the FTProtocol".

I see bit like:

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SendFTProtocolMsg()
{
    rfbFileTransferMsg ft;
    memset(&ft, 0, sizeof ft);
    ft.type = rfbFileTransfer;
    ft.contentType = rfbFileTransferProtocolVersion;
    ft.contentParam = FT_PROTO_VERSION_3;
    m_socket->SendExact((char *)&ft, sz_rfbFileTransferMsg, rfbFileTransfer);
}

When the server is reading the SetEncoding message I do see

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if (Swap32IfLE(encoding) == rfbEncodingFTProtocolVersion) 

Problem is when I look at the client's code. I cannot see this encoding being set and sent in the initial hand shake.

So I'm a little confused at the moment and any insight in how/when the server/client should be telling the other that it supports file transfer would be great.

[Rudi De Vos]

Its handle as a pseudo encoder.
The viewer and server exchange the supported encoders ( like hextile, tight,zrle..), rfbEncodingFTProtocolVersion
Viewer

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encs[se->nEncodings++] = Swap32IfLE(rfbEncodingServerState);
    encs[se->nEncodings++] = Swap32IfLE(rfbEncodingEnableKeepAlive);
    encs[se->nEncodings++] = Swap32IfLE(rfbEncodingFTProtocolVersion);

server

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if (Swap32IfLE(encoding) == rfbEncodingFTProtocolVersion) {
                        need_ft_version_msg = true;
						vnclog.Print(LL_INTINFO, VNCLOG("FTProtocolVersion protocol extension enabled\n"));
                        continue;
					}

server

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if (need_ft_version_msg)
        {
            // send a ft protocol message to client.
            m_client->SendFTProtocolMsg();
            need_ft_version_msg = false;
        }