A multi-threaded class C network scanner. Loosely based on propecia.c by Bind.
Added functionality to input multiple ports to scan or multiple class C networks.
Introduced argument passing to the Python application.
Modified by Ryan Villarreal
Created by Michael Allen (http://www.MikeAllen.org)
Based on the original propecia port scanner written by Bind, available here: http://packetstormsecurity.com/files/14232/propecia.c.html
Performs a simple TCP port scan on a single port and outputs a list of IP addresses with that port open.
usage: propecia.py [-h] --port PORT [PORT ...] [-V]
(--multi [MULTI] | --addr ADDR [ADDR ...])
propecia.py: error: argument --port/-p is required
example: ./propecia.py --port 80 --addr 192.168.0
example: ./propecia.py -p 80 -a 192.168.0
example: ./propecia.py -p 80 443 139 -a 192.168.0
example: ./propecia.py -p 80 -m list.txt