Gallopsled / pwntools / 1

from __future__ import absolute_import

from __future__ import division

import shutil

from argparse import ArgumentParser

from subprocess import CalledProcessError

from subprocess import check_output

from tempfile import NamedTemporaryFile

import pwnlib.args

pwnlib.args.free_form = False

from pwn import *

from pwnlib.commandline import common

def dump(objdump, path):

    n = NamedTemporaryFile(delete=False)

    o = check_output([objdump,'-d','-x','-s',path])

    n.write(o)

    n.flush()

    return n.name

def diff(a,b):

    try: return check_output(['diff',a,b], universal_newlines=True)

    except CalledProcessError as e:

        return e.output

p = common.parser_commands.add_parser(

p.add_argument('a')

p.add_argument('b')

def main(a):

    with context.silent:

        x = ELF(a.a)

        y = ELF(a.b)

    if x.arch != y.arch:

        log.error("Architectures are not the same: %s vs %s" % (x.arch, y.arch))

    context.arch = x.arch

    objdump = pwnlib.asm.which_binutils('objdump')

    tmp = NamedTemporaryFile()

    name = tmp.name

    shutil.copy(x.path, name)

    x = dump(objdump, name)

    shutil.copy(y.path, name)

    y = dump(objdump, name)

    print(diff(x, y))

if __name__ == '__main__':

    pwnlib.commandline.common.main(__file__)