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