Client fails occasionally while reading socket

[ddrcode]

On rare occasions Charon client fails with message:

Error: EOF while parsing a value at line 1 column 0

It refers to handle_daemon_event method in app.rs.

Expected behavior:

• log the error
• prevent client app from crashing

Additionally:

• Investigate why client receives empty-string messages.

[ddrcode]

It actually happens more frequently. Usually on wake up from sleep (of Charon, not the host).