NAME

Keystone - Perl extension for keystone-engine

SYNOPSIS

use Keystone ':all';

$ks = Keystone->new(KS_ARCH_X86, KS_MODE_64) || die "Can't init Keystone\n";
@opcodes = $ks->asm("pop rax; inc rbx; ret");

foreach(@opcodes) {
  printf "0x%.2x ", $_;
}
print "\n";

DESCRIPTION

This module is a Perl wrapper for the keystone-engine library.

Keystone is a lightweight multi-platform, multi-architecture assembler framework.

Further information are available at http://www.keystone-engine.org

METHODS

• new(arch, mode)

    $ks = Keystone->new(KS_ARCH_X86, KS_MODE_32);
  

  Create a new keystone object. Take two arguments, the arch (KS_ARCH_*) and the mode (KS_MODE_*). See ks_open() in keystone-engine documentation

• asm(code, address)

    @opcodes = $ks->asm("pop rax; ret");
  

  Assemble code, and return a list of opcodes.

  See ks_asm() in keystone-engine documentation.

• strerror()

    printf "%s\n", $ks->strerror();
  

  Get the last error string

  See ks_strerror() in keystone-engine documentation.

• errno()

    printf "%d\n", $ks->errno();
  

  Get the last error code (KS_ERR_* constants)

  See ks_errno() in keystone-engine documentation.

FUNCTIONS

• version()

    ($maj, $min) = Keystone::version();
  

  Get the major and the minor version of the Keystone engine. See ks_version() in keystone-engine documentation

• arch_supported(arch)

    printf "%d\n", Keystone::arch_supported(KS_ARCH_X86);
  

  Return 1 if the KS_ARCH_* is supported, 0 overwise. See ks_arch_supported() in keystone-engine documentation

EXAMPLES

#!/usr/bin/perl

use ExtUtils::testlib;
use Keystone ':all';

use strict;
use warnings;

my @asm = ("push ebp",
           "mov rdx, rdi",
           "int 0x80",
           "inc rdx",
           "mov eax, 0x12345678",
           "mov bx, 5");

# Open a Keystone object
my $ks = Keystone->new(KS_ARCH_X86, KS_MODE_64) ||
    die "[-] Can't open Keystone\n";


for my $ins(@asm) {

    # Assemble...
    my @opcodes = $ks->asm($ins);

    if(!scalar(@opcodes)) {
        printf "Assembly failed (\"$ins\") : %s\n", $ks->strerror();
    } else {
        # Print opcodes
        printf "%-20s %s\n", join(' ', map {sprintf "%.2x", $_} @opcodes), $ins;
    }
}

SEE ALSO

http://keystone-engine.org/

https://github.com/t00sh/perl-keystone

AUTHOR

Tosh, [email protected]

COPYRIGHT AND LICENSE

Copyright (C) 2016 by Tosh

This library is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.