Cannot read/write from STDOUT and STDIN

[lionel-faber]

I tried invoking the safe_auth executable from a Java application as a shell process to authenticate it to the SAFE network. But, the secret and password prompts did not come via STDOUT.

I created a file creds with the following content:

thisIsMySecret
thisIsMyPassword

On running, ./safe_auth < creds I am still prompted for the secret and password.