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# Fact: domain
#
# Purpose:
# Return the host's primary DNS domain name.
#
# Resolution:
# On UNIX (excluding Darwin), first try and use the hostname fact,
# which uses the hostname system command, and then parse the output
# of that.
# Failing that it tries the dnsdomainname system command.
# Failing that it uses /etc/resolv.conf and takes the domain from that, or as
# a final resort, the search from that.
# Otherwise returns nil.
#
# On Windows uses the win32ole gem and winmgmts to get the DNSDomain value
# from the Win32 networking stack.
#
# Caveats:
#
Facter.add(:domain) do
setcode do
# Get the domain from various sources; the order of these
# steps is important
Facter.value(:hostname)
next $domain if defined? $domain and ! $domain.nil?
domain = Facter::Util::Resolution.exec('dnsdomainname')
next domain if domain =~ /.+\..+/
if FileTest.exists?("/etc/resolv.conf")
domain = nil
search = nil
File.open("/etc/resolv.conf") { |file|
file.each { |line|
if line =~ /domain\s+(\S+)/
domain = $1
elsif line =~ /search\s+(\S+)/
search = $1
end
}
}
next domain if domain
next search if search
end
nil
end
end
Facter.add(:domain) do
confine :kernel => :windows
setcode do
require 'win32ole'
domain = ""
wmi = WIN32OLE.connect("winmgmts://")
query = "select DNSDomain from Win32_NetworkAdapterConfiguration where IPEnabled = True"
wmi.ExecQuery(query).each { |nic|
domain = nic.DNSDomain
break
}
domain
end
end
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