luaposix 36.2.1 Reference

## netlink-uevent.lua

    #! /usr/bin/env lua

    local M = require 'posix.sys.socket'

    if M.AF_NETLINK ~= nil then
       local getpid = require 'posix.unistd'.getpid

       local fd, err = M.socket(M.AF_NETLINK, M.SOCK_DGRAM, M.NETLINK_KOBJECT_UEVENT)
       assert(fd, err)

       local ok, err = M.bind(fd, {family=M.AF_NETLINK, pid=getpid(), groups=-1})
       assert(ok, err)

       while true do
          local data, err = M.recv(fd, 16384)
          assert(data, err)
          for k, v in string.gmatch(data, '%z(%u+)=([^%z]+)') do
             print(k, v)
          end
          print '\n'
       end
    end

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