IP address target range

This program is designed to scan the entire Internet. It works something like this:

# masscan 0.0.0.0/0 -p 80,8080,3128

This will scan the entire Internet for port 80. However, sometimes you want to scan smaller ranges. For example, within a company you might want to scan just the private IP address ranges:

# masscan 10.0.0.0/24 192.168.0.0/16 172.16.0.0/20 -p80,8080,3128

The above assumes "CIDR" addressing, but smaller ranges can be provided:

# masscan 10.0.0.100-10.0.0.200 -p80,8080,3128

Or, if scanning only a single host:

# masscan 192.168.1.2 -p80,8080,3128

Nmap Compatibility: This is similar to nmap. One major difference is that ONLY IP addresses can be specified, not hostnames that require a DNS lookup. Secondly, the weird nmap method of subranges won't work, the one that looks like 10.0.100-200.1. I suppose I could make it work, but I think it's just stupid.