#!/bin/sh
#
# $FreeBSD$
#

# Should probably in the future allow running as non-root
# and enable multiple interfaces in some cleaner way.

# PROVIDE: tangd
# REQUIRE: NETWORKING DAEMON
# KEYWORD: nojail

. /etc/rc.subr

name="tangd"
desc="Network Presence Binding Daemon (tang)"
rcvar="tangd_enable"
command="/usr/local/bin/socat"

load_rc_config $name
: ${tangd_enable:=no}
: ${tangd_ip="127.0.0.1"}
: ${tangd_port="8888"}
: ${tangd_jwkdir="@jwkdir@"}
: ${tangd_logfile="/var/log/tang"}
: ${tangd_executable="@libexecdir@/tangd"}

pidfile="/var/run/${name}.pid"
required_files="@libexecdir@/${name}"
required_dirs="${tangd_jwkdir}"

start_postcmd="${name}_poststart"
_tangd_listen_args="TCP-LISTEN:${tangd_port},bind=${tangd_ip},fork"
command_args="${_tangd_listen_args} SYSTEM:\"${tangd_executable} ${tangd_jwkdir} 2>> ${tangd_logfile} \" &"

# Since we may not be the only socat running we can't use the built-in process
# management, so we'll need to use a pid file and find the pid from unique arguments.
tangd_poststart() {
  ps_pid=`ps ax -o pid= -o command= | grep ${_tangd_listen_args} | grep -v grep | awk '{print $1}'`
  if [ -z "$ps_pid" ]; then
    err 1 "Cannot get pid for ${command} ${command_args}"
  fi
  echo $ps_pid > ${pidfile}
  return $?
}

run_rc_command "$1"