Allow sending files to destinations with absolute paths

[GreenMobius]

My use case for teleport is going to be using it programmatically for some system testing-

It would be really nice to be able to keep the preceding slash e.g. /tmp/file when transferring something, as I have some files that may use local paths from the testing directory, and some files that use absolute paths for some configuration changes.

Essentially, would it be possible to find a way to allow absolute path transfers without needing a command-line flag?

[genonullfree]

This should be relatively easy, we could disable the removal of any / at the beginning of the filename path in the client, and on the server side have a flag to disable the check for the beginning /. Could add a command argument like --allow-absolute when starting the server to disable the check.