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|
# frozen_string_literal: false
=begin
= Win32 DNS and DHCP I/F
=end
require 'win32/registry'
module Win32
module Resolv
API = Registry::API
def self.get_hosts_path
path = get_hosts_dir
path = File.expand_path('hosts', path)
File.exist?(path) ? path : nil
end
def self.get_resolv_info
search, nameserver = get_info
if search.empty?
search = nil
else
search.delete("")
search.uniq!
end
if nameserver.empty?
nameserver = nil
else
nameserver.delete("")
nameserver.delete("0.0.0.0")
nameserver.uniq!
end
[ search, nameserver ]
end
end
kernel32 = Module.new do
extend Importer
dlload "kernel32"
end
getv = kernel32.extern "int GetVersionExA(void *)", :stdcall
info = [ 148, 0, 0, 0, 0 ].pack('V5') + "\0" * 128
getv.call(info)
if info.unpack('V5')[4] == 2 # VER_PLATFORM_WIN32_NT
#====================================================================
# Windows NT
#====================================================================
module Resolv
TCPIP_NT = 'SYSTEM\CurrentControlSet\Services\Tcpip\Parameters'
class << self
private
def get_hosts_dir
Registry::HKEY_LOCAL_MACHINE.open(TCPIP_NT) do |reg|
reg.read_s_expand('DataBasePath')
end
end
def get_info
search = nil
nameserver = []
Registry::HKEY_LOCAL_MACHINE.open(TCPIP_NT) do |reg|
begin
slist = reg.read_s('SearchList')
search = slist.split(/,\s*/) unless slist.empty?
rescue Registry::Error
end
if add_search = search.nil?
search = []
begin
nvdom = reg.read_s('NV Domain')
unless nvdom.empty?
@search = [ nvdom ]
if reg.read_i('UseDomainNameDevolution') != 0
if /^\w+\./ =~ nvdom
devo = $'
end
end
end
rescue Registry::Error
end
end
reg.open('Interfaces') do |h|
h.each_key do |iface,|
h.open(iface) do |regif|
begin
[ 'NameServer', 'DhcpNameServer' ].each do |key|
begin
ns = regif.read_s(key)
rescue
else
unless ns.empty?
nameserver.concat(ns.split(/[,\s]\s*/))
break
end
end
end
rescue Registry::Error
end
if add_search
begin
[ 'Domain', 'DhcpDomain' ].each do |key|
dom = regif.read_s(key)
unless dom.empty?
search.concat(dom.split(/,\s*/))
break
end
end
rescue Registry::Error
end
end
end
end
end
search << devo if add_search and devo
end
[ search.uniq, nameserver.uniq ]
end
end
end
else
require_relative 'resolv9x'
end
end
|
