#!/bin/sh
prg=$(basename "$0")
port="$1"
if [ -z "$port" -o "$port" = "-h" ]
then
  echo "usage: $0 <port>" >&2
  echo "Connect to <port> and dump the content of last crash using D21 to stdout" >&2
  exit 1
fi

set -e
tmp=$(mktemp)
trap "rm -f \"$tmp\"" EXIT

echo D21 > "$tmp"
printcore -v "$port" "$tmp" 2>&1 | \
    sed -ne '/^RECV: D21 /,/RECV: ok$/s/^RECV: //p'