Buffering issue when echoing user input

[Alan Gardner <gardner@xxxxxxxxxxx>]

Hey Guys,

Back with a few more questions. I've got the client connected, with a PTY
and a shell opened. I can read on the channel and see what the user types,
and I can write to the channel and have it displayed in the client. However:

- Writes to the client seem to be buffered or somehow delayed until I read
from the client. If I echo back user input, they only receive my response
after a second keypress. For example, if the user types 'abc', they'll see
'ab'. If they then press enter, they'll get the c as well. With logging on
it looks like the data has been written, but I noticed that the code to
flush the socket doesn't have any logging, so I suppose it might be hung up
there.

- Is there a non-callback way to handle protocol messages once I've got a
channel open? I'm using a vanilla select() on the client socket, so it
fires even when non-channel data comes in - for example, if the client
resizes the PTY. Is there a way I can read the data into a buffer, and use
libssh to determine whether it's a protocol message or just input on the
channel?

Thanks,
Alan

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