- require 'socket'
- include Socket::Constants
- def scan_port
- if $*[0] == nil or $*[1] == nil or $*[2] == nil
- abort "用法示例:ruby #$0 ip地址 开始端口 结束端口 EX:如ruby #$0 localhost 1 1024"
- end
- time = Time.now
- scan $*[0], $*[1], $*[2]
- puts "\n共耗时:#{Time.now - time}秒"
- end
- private
- def scan(address, start_port, end_port)
- threads = []
- for port in start_port..end_port
- threads << Thread.new(port) do |theport|
- begin
- socket = Socket.new(AF_INET, SOCK_STREAM, 0) #生成新的套接字
- sockaddr = Socket.pack_sockaddr_in(theport, address)
- socket.connect(sockaddr)
- puts "Port:#{theport} is Opend!\n"
- socket.close
- rescue
- end
- end
- end
- threads.each {|thr| thr.join}
- end