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