How to log out when using Net::SFTP

Question

I'm trying to get started with Net::SFTP, but I wasn't able to find in its documentation or in the documentation for Net::SSH::Perl, how we're supposed to log out of the SFTP server.

What am I missing?

Is logout handled by garbage control?

Answer 1

You can't.

I've looked at the source code for both Net::SFTP and Net::SSH::Perl. Neither of them has a DESTROY method, so there is no explicit cleanup being done. There are also no disconnect or quit or similar.

Net::SSH::Perl has a sub _disconnect which is empty. It's called by sub fatal_disconnect. fatal_disconnect is used by Net::SFTP in case an SFTP request failed. But that's it. Nothing else.

The objects get cleaned up by Perl as soon as they go out of scope.

{
    my $sftp = Net::SFTP->connect; # example
    # do stuff...
}

# here it has been cleaned up and DESTROY was called on it

But since there is no code, nothing else happens. I cannot find code that tells the SSH to log out. Maybe it just times out. We would have to look at the server logs to see what happens.