bash - xinetd / netcat - redirecting stdin/stdout -

i have simple xinetd controlled script wraps simple java application listens on given port. xinetd talks via stdin/stdout, use netcat redirect traffic to/from java app. @ moment have following configuration.

xinetd

service my_server  {    type            = unlisted    disable         = no    socket_type     = stream    protocol        = tcp    wait            = no    user            = root    port            = 2177    log_on_success += duration host userid    server          = /opt/stuff/my_server.sh } 

my_server.sh

port=2111  # start java process on given port java -jar /opt/stuff/myserver.jar "$port" &  # redirect traffic using netcat retry_counter=0 until nc -v 127.0.0.1 ${port}   let "retry_counter++"   echo "retrying... (${retry_counter})" >> /var/log/smpp_nc   sleep 0.1 done 

it seems netcat job of sending data app, not other way around... help/hints appreciated!

assuming you're in control of java server code, you're adding layer of redirection isn't needed. instead of configuring xinetd call shell script, configure call java application. use system.in , system.out java - simple!

your server able use stdin/stdout once it's hooked xinetd.