Start main, wait for server to start...
Server started

Client Filename = test.out
Server Filename = upload_dir/.test.out
=> call ok

Client Filename = upload5.adb
Server Filename = upload_dir/.upload5.adb
=> call ok

Client Filename = file%29.txt
Server Filename = upload_dir/.file%29.txt
=> call ok

Client Filename = fi%87le%12.txt
Server Filename = upload_dir/.fi%87le%12.txt
=> call ok
