Run socat as a SysV service to write TCP stream contents to a file

etc_init.d_foo

#!/bin/bash
### BEGIN INIT INFO
# Provides: foo
# Defalt-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Description: Writes TCP on port 8725 to a file
### END INIT INFO

source /etc/rc.d/init.d/functions

start() {
    /usr/sbin/daemonize \
        -u foo \
        -p /var/run/foo.pid \
        -l /var/lock/subsys/foo \
        /usr/bin/socat -u \
        TCP4-LISTEN:8725,reuseaddr,fork \
        OPEN:/var/log/foo.log,creat,append
}

case "$1" in
    start)
        start
        ;;
    stop)
        killproc foo
        ;;
    status)
        status foo
        ;;
    *)
        echo "Usage: $0 {start|stop|status}"
        exit 1
        ;;
esac