Detecting remote disconnects

[Peter von Konigsmark <peter@xxxxxxxxxx>]

Hi all,

I've got an app that launches executables on a remote machine using 
ssh_channel_request_exec().  How can I detect when the remote end is no 
longer available due to the cable being unplugged etc?  When the cable 
is removed:

ssh_channel_is_eof() returns 0
ssh_is_connected() returns 1
ssh_get_status() returns 0 signalling everything is OK.

I can detect when the remote end is rebooted (nicely), but not when it 
becomes otherwise unreachable.  I'm using libssh 0.5.2.

Thanks,
Peter