#!/bin/bash
#

host=127.0.0.1
port=9900
error_rc=255

prgname=${0##*/}
prgdir=${0%$prgname}

showusage() {
    echo ""
    echo "    $0 [ -ip <ipaddress> -port <port> ] <command>"
    echo ""
    echo "    Supported commands are:"
    echo ""
    echo "    list [ numsessions | sessions | session <callid> ]"
    echo "         numsessions           : prints the number of sessions"
    echo "         sessions              : print one-liner session information"
    echo "         session <callid>      : print detail about one session"
    echo "         totals                : print total statistics (does not include current sessions)"
    echo ""
    echo "    terminate [ all | <callid> ]"
    echo "         all                   : terminates all current sessions"
    echo "         <callid>              : session is immediately terminated"
    echo ""
    echo ""
    echo "    Return Value:"
    echo "    0 on success with ouput from server side, other values for failure."
    echo ""
    exit 0
}

if [ $# -eq 0 ]; then showusage; fi


command -v nc 2>&1 >/dev/null
if [ $? -ne 0 ]; then
    echo "Error: $0 requires netcat to be installed."
    exit 0
fi

while [ $# -gt 0 ]; do
    case $1 in
   "-?"|"-help"|"-h")
       showusage
       ;;
   "-ip")
       shift
       if [ $# -gt 0 ]; then
       host=$1
       else
       echo "Missing parameter for option '-ip'" >&2
       fi
       ;;
   "-port")
       shift
       if [ $# -gt 0 ]; then
       port=$1
       else
       echo "Missing parameter for option '-port'" >&2
       fi
       ;;
   *)
       varargs="$varargs $1"
    esac
    shift
done

echo -n ${varargs} | nc ${host} ${port}