Folks:

While working on configuration of libcurl, I noticed that libcurl has  
an option to do ssh transfers for you.  This would be superior to  
invoking a separate "ssh" process if it satisfied our needs.

However, libcurl's ssh feature is only for scp and sftp, and I think  
that modern darcs has its own custom, low-overhead, one-connection,  
pipelined protocol over ssh.

I'm not entirely sure about that.

Regards,

Zooko