1*4882a593Smuzhiyun#!/bin/sh 2*4882a593Smuzhiyun 3*4882a593Smuzhiyunusage() { 4*4882a593Smuzhiyun ( 5*4882a593Smuzhiyun echo "Usage: $0 <board-IP> [board-port [board-in-port]]" 6*4882a593Smuzhiyun echo "" 7*4882a593Smuzhiyun echo "If port is not specified, '6666' will be used" 8*4882a593Smuzhiyun [ -z "$*" ] && exit 0 9*4882a593Smuzhiyun echo "" 10*4882a593Smuzhiyun echo "ERROR: $*" 11*4882a593Smuzhiyun exit 1 12*4882a593Smuzhiyun ) 1>&2 13*4882a593Smuzhiyun exit $? 14*4882a593Smuzhiyun} 15*4882a593Smuzhiyun 16*4882a593Smuzhiyunwhile [ -n "$1" ] ; do 17*4882a593Smuzhiyun case $1 in 18*4882a593Smuzhiyun -h|--help) usage;; 19*4882a593Smuzhiyun --) break;; 20*4882a593Smuzhiyun -*) usage "Invalid option $1";; 21*4882a593Smuzhiyun *) break;; 22*4882a593Smuzhiyun esac 23*4882a593Smuzhiyun shift 24*4882a593Smuzhiyundone 25*4882a593Smuzhiyun 26*4882a593Smuzhiyunip=$1 27*4882a593Smuzhiyunboard_out_port=${2:-6666} 28*4882a593Smuzhiyunboard_in_port=${3:-${board_out_port}} 29*4882a593Smuzhiyun 30*4882a593Smuzhiyunecho Board out port: ${board_out_port} 31*4882a593Smuzhiyunecho Board in port: ${board_in_port} 32*4882a593Smuzhiyun 33*4882a593Smuzhiyunif [ -z "${ip}" ] || [ -n "$4" ] ; then 34*4882a593Smuzhiyun usage "Invalid number of arguments" 35*4882a593Smuzhiyunfi 36*4882a593Smuzhiyun 37*4882a593Smuzhiyunfor nc in netcat nc ; do 38*4882a593Smuzhiyun type ${nc} >/dev/null 2>&1 && break 39*4882a593Smuzhiyundone 40*4882a593Smuzhiyun 41*4882a593Smuzhiyuntrap "stty icanon echo intr ^C" 0 2 3 5 10 13 15 42*4882a593Smuzhiyunecho "NOTE: the interrupt signal (normally ^C) has been remapped to ^T" 43*4882a593Smuzhiyun 44*4882a593Smuzhiyunstty -icanon -echo intr ^T 45*4882a593Smuzhiyun( 46*4882a593Smuzhiyunif type ncb 2>/dev/null ; then 47*4882a593Smuzhiyun # see if ncb is in $PATH 48*4882a593Smuzhiyun exec ncb ${board_out_port} 49*4882a593Smuzhiyun 50*4882a593Smuzhiyunelif [ -x ${0%/*}/ncb ] ; then 51*4882a593Smuzhiyun # maybe it's in the same dir as the netconsole script 52*4882a593Smuzhiyun exec ${0%/*}/ncb ${board_out_port} 53*4882a593Smuzhiyun 54*4882a593Smuzhiyunelse 55*4882a593Smuzhiyun # blah, just use regular netcat 56*4882a593Smuzhiyun while ${nc} -u -l -p ${board_out_port} < /dev/null ; do 57*4882a593Smuzhiyun : 58*4882a593Smuzhiyun done 59*4882a593Smuzhiyunfi 60*4882a593Smuzhiyun) & 61*4882a593Smuzhiyunpid=$! 62*4882a593Smuzhiyun${nc} -u ${ip} ${board_in_port} 63*4882a593Smuzhiyunkill ${pid} 2>/dev/null 64