Function silc_sftp_client_start
SYNOPSIS
SilcSFTP silc_sftp_client_start(SilcSocketConnection sock,
SilcSFTPSendPacketCallback send_packet,
void *send_context,
SilcSFTPVersionCallback callback,
void *context);
DESCRIPTION
Starts SFTP client by associating the socket connection `sock' to the
created SFTP client context. The version callback indicated by the
`callback' will be called after the SFTP session has been started
and server has returned the version of the protocol. The SFTP client
context is returned in the callback too. This returns the allocated
SFTP client context or NULL on error.