Hi,

I am trying to transfer a file from an SSH server using libssh2. The SSH server 
in question is running under RouterOS (http://www.mikrotik.com) and seems to be 
misbehaving, but I don't know enough to narrow the problem down further.

The client can connect to the server and authenticate OK. I can also execute 
commands on the remote shell OK. However, when I try and call 
libssh2_scp_recv() I always get a null result. After the failure, 
libssh2_session_lasterror returns an empty string, and 
libssh2_session_lasterrno returns zero.

Test code and debug logs are available here:

http://gist.github.com/620189

The most noticeable log line is

[libssh2] 1.001111 Failure Event: -28 - Timed out waiting for SCP response

I believe on one occasion I got this error message returned by 
libssh2_session_lasterror() but I can't reproduce that. I don't know what the 
timeout should be, but it certainly isn't waiting very long before timing out 
(a fraction of a second at most).

I'd be grateful for any pointers as to how to proceed with this. I don't mind 
dipping into the libssh2 code, but I don't have the time to grok it at the 
moment. I'm fairly sure the problem ultimately lies on the RouterOS side, but I 
don't want to give up if there's a simple workaround.

Tim
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