#!/bin/sh
#
# Helper script - check if a binary is tagged as NX-compatible or not.

set -e

for FILE in "$@"; do

    if [ ! -f "${FILE}" ]; then
	echo "${FILE} does not exist. ABORT."
	exit 1
    fi

    echo "Checking NX bit on ${FILE}:"
    DLL_CHARACTERISTICS=$(objdump -x "${FILE}" | awk '/DllCharacteristics/ {print $2}')

    echo "  DllCharacteristics $DLL_CHARACTERISTICS"
    case $DLL_CHARACTERISTICS in
	00000000)
	    echo "  NOT tagged as NX-compatible"
	    ;;
	00000100)
	    echo "  tagged as NX-compatible"
	    ;;
	*)
	    echo "  UNRECOGNISED value, ABORT";
	    exit 1
	    ;;
    esac

done