petoasm

#!/bin/bash

# petoasm:

# bash shell script to convert binary microsoft portable executable

# file format to intel style assembly mnemonic.

# author    : sumadi <madiqq83@gmail.com

# revision 1: 4 may 2024:13:08:50

# revision 2: saturday 18 january 2025 16:30:00

# revision 3: wednesday 28 may 2025 21:00:00

IFS=$'\n'

error()

{

    echo -en "[error $1]: " > "/dev/stderr";

    case "$1" in

        1) echo "must have 2 parameters" > "/dev/stderr";

           echo -en "USAGE: $0 \"/dir/input-file.exe\" \"/dir/output-file.asm\"\n\n" >\

           "/dev/stderr"

           ;;

        2) echo "put input file in first parameter" > "/dev/stderr"

           ;;

        3)  echo "output file must empty" > "/dev/stderr"

            ;;

        4)  echo "why cannot create temporary directory ?"

            ;;

        5)  echo "horrible technical error ..." > "/dev/stderr"

            break

            ;;

    esac

    exit "$1"

}

if [[ "$#" != "2" ]]; then

    error 1;

fi

I=`realpath "$1"`

if ! [[ -s "$I" ]]; then

    error 2;

fi

O=`realpath "$2"`

if [[ -s "$2" ]]; then

    error 3;

fi

_PWD="$PWD";

WS=`mktemp -d`;

if ! cd "$WS"; then

    error 4;

fi

echo "[START]: converting \"$1\" to \"$2\"" > "/dev/stderr";

if ! objdump -D -M intel,intel-mnemonic "$I" > 1 2> "/dev/null";

then

    error 5;

fi

grep -v '^Disassembly of section' <1 >2;

grep -v '\...' 2 >1;

tr '\t' ' ' <1 >2;

tr -s ' ' <2 >1;

sed 's/^ //g' 1 >2;

sed 's/: / /g' <2 >1;

grep -v ^$ 1 >2;

cp 2 "$O";

rm 1 2;

cd "$_PWD";

rm -rf "$WS";

echo "[END]: converting \"$1\" to \"$2\"" > "/dev/stderr";

exit 0;