module Aio::Base::Toolkit::IPAddr
Public Class Methods
mask_dotted_to_i(mask)
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子网掩码从点分十进制转换为数值 255.255.255.0 => 24
# File lib/aio/base/toolkit/ipaddr.rb, line 6 def mask_dotted_to_i(mask) arr = mask.split(".") binary = "" arr.each do |m| binary << m.to_i.to_s(2) end return binary.scan(/1/).size end
mask_i_to_dotted(int)
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子网掩码从十进制到点分十进制 24 => 255.255.255.0
# File lib/aio/base/toolkit/ipaddr.rb, line 17 def mask_i_to_dotted(int) int = int.to_i arr = [nil, nil, nil, nil] binary = (2 ** int - 1) << (32 - int) 4.times do |t| arr[3-t] = (binary & 255).to_s binary = binary >> 8 end return arr.join(".") end