class BytesCode

# File lib/BytesCode.rb, line 7
def self.countdown(shellcode)
    shellcode_array = shellcode.split('\x')
    no_authorized = ["00", "FF", "0D", "0A", "ff", "0d", "0a"]
    final_rez = []
    shellcode_array.each do |bytes|
       
        no_authorized.each do |no_auth|
            if bytes == no_auth
                shellcode_array.delete(bytes)
            end
        end
    end

    shellcode_array.each do |octet|
        if octet != ""
            final_rez << "\\x#{octet}"
        end

    end
    return final_rez.join

end

# File lib/BytesCode.rb, line 30
def self.to_opcode(file, countdown=false)

    if(File.file?(file) == false)
        raise FileError, "#{file} => File not found"
    end
    cmd = `objdump -d #{file} | grep "^ "|cut -f2`

    cmd_to_a = cmd.split(/\n/)


    testt = cmd_to_a.join("").split(" ")

    final_res = []
    testt.each do |data|
        final_res << "\\x#{data}"
    end

    if(countdown == false)
        return final_res.join
    else
        return self.countdown(final_res.join)
    end
end