Sha256: caf71709a788f55b9c088c1a3845bd1d355b97260bcb2ff709999c7bf6fdaa08
Contents?: true
Size: 599 Bytes
Versions: 18
Compression:
Stored size: 599 Bytes
Contents
module Aio::Base::Toolkit::IPAddr
class << self
# 子网掩码从点分十进制转换为数值
# 255.255.255.0 => 24
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
# 子网掩码从十进制到点分十进制
# 24 => 255.255.255.0
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
end
end
Version data entries
18 entries across 18 versions & 1 rubygems