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kuredev/show_interface_flags.rb

Created December 16, 2020 15:03
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show_interface_flags.rb
require "socket"
SIOCGIFFLAGS = 0x8913
sock = Socket.new(Socket::AF_INET, Socket::SOCK_DGRAM, 0)
ifreq = ["eth0"].pack("a4")
sock.ioctl(SIOCGIFFLAGS, ifreq)
result = ifreq[Socket::IFNAMSIZ, 0x02].dup
puts result[1].ord.to_s(2) + result[0].ord.to_s(2)
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kuredev commented Dec 16, 2020

https://kure.hatenablog.jp/entry/2020/12/17/002848

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