OOB Port Utils

Hello, I was looking for a nice recent OOB port attacker that can attack on any port preferably with some type of confirmation. Additionally if anyone had one with the C source that would be great. The more features the better as I am trying to learn about this type of exploit. Thanks in advance and as I am new to this list please disregard if this is off topic. Thanks again. Joe Graham Joe@chironconsulting.com