Ruby : IP 범위를 IP 배열로 변환하는 방법

Question

IP 범위를 IP 배열로 변환하는 쉬운 방법이 있습니까?

def convertIPrange (start_ip, end_ip) 
#output: array of ips end 
end 

입력

('192.168.1.105', '192.168.1.108') 

출력

['192.168.1.105','192.158.1.106','192.158.1.107','192.158.1.108'] 

Answer 1

사용하여 루비 표준 라이브러리 IPAddr

# I would suggest naming your function using underscore rather than camelcase 
# because of Ruby naming conventions 
# 
require 'ipaddr' 

def convert_ip_range(start_ip, end_ip) 
    start_ip = IPAddr.new(start_ip) 
    end_ip = IPAddr.new(end_ip) 

    # map to_s if you like, you can also call to_a, 
    # IPAddrs have some neat functions regarding IPs, 
    # be sure to check them out 
    # 
    (start_ip..end_ip).map(&:to_s) 
end 

Answer 2

def convertIPrange first, last 
    first, last = [first, last] 
    .map{|s| s.split(".").inject(0){|i, s| i = 256 * i + s.to_i}} 
    (first..last).map do |q| 
    a = [] 
    (q, r = q.divmod(256)) && a.unshift(r) until q.zero? 
    a.join(".") 
    end 
end 

convertIPrange('192.168.1.105', '192.168.1.108') 
# => ["192.168.1.105", "192.168.1.106", "192.168.1.107", "192.168.1.108"] 

convertIPrange('192.255.255.254', '193.0.0.1') 
# => ["192.255.255.254", "192.255.255.255", "193.0.0.0", "193.0.0.1"]