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#
# ipaddr.rb - A class to manipulate an IP address
#
# Copyright (c) 2002 Hajimu UMEMOTO <ume@mahoroba.org>.
# Copyright (c) 2007, 2009, 2012 Akinori MUSHA <knu@iDaemons.org>.
# All rights reserved.
#
# You can redistribute and/or modify it under the same terms as Ruby.
#
# $Id: ipaddr.rb 39423 2013-02-23 04:03:59Z knu $
#
# Contact:
# - Akinori MUSHA <knu@iDaemons.org> (current maintainer)
#
# TODO:
# - scope_id support
#
require 'socket'
# IPAddr provides a set of methods to manipulate an IP address. Both IPv4 and
# IPv6 are supported.
#
# == Example
#
# require 'ipaddr'
#
# ipaddr1 = IPAddr.new "3ffe:505:2::1"
#
# p ipaddr1 #=> #<IPAddr: IPv6:3ffe:0505:0002:0000:0000:0000:0000:0001/ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff>
#
# p ipaddr1.to_s #=> "3ffe:505:2::1"
#
# ipaddr2 = ipaddr1.mask(48) #=> #<IPAddr: IPv6:3ffe:0505:0002:0000:0000:0000:0000:0000/ffff:ffff:ffff:0000:0000:0000:0000:0000>
#
# p ipaddr2.to_s #=> "3ffe:505:2::"
#
# ipaddr3 = IPAddr.new "192.168.2.0/24"
#
# p ipaddr3 #=> #<IPAddr: IPv4:192.168.2.0/255.255.255.0>
class IPAddr
# 32 bit mask for IPv4
IN4MASK = 0xffffffff
# 128 bit mask for IPv4
IN6MASK = 0xffffffffffffffffffffffffffffffff
# Format string for IPv6
IN6FORMAT = (["%.4x"] * 8).join(':')
# Regexp _internally_ used for parsing IPv4 address.
RE_IPV4ADDRLIKE = %r{
\A
(\d+) \. (\d+) \. (\d+) \. (\d+)
\z
}x
# Regexp _internally_ used for parsing IPv6 address.
RE_IPV6ADDRLIKE_FULL = %r{
\A
(?:
(?: [\da-f]{1,4} : ){7} [\da-f]{1,4}
|
( (?: [\da-f]{1,4} : ){6} )
(\d+) \. (\d+) \. (\d+) \. (\d+)
)
\z
}xi
# Regexp _internally_ used for parsing IPv6 address.
RE_IPV6ADDRLIKE_COMPRESSED = %r{
\A
( (?: (?: [\da-f]{1,4} : )* [\da-f]{1,4} )? )
::
( (?:
( (?: [\da-f]{1,4} : )* )
(?:
[\da-f]{1,4}
|
(\d+) \. (\d+) \. (\d+) \. (\d+)
)
)? )
\z
}xi
# Generic IPAddr related error. Exceptions raised in this class should
# inherit from Error.
class Error < ArgumentError; end
# Raised when the provided IP address is an invalid address.
class InvalidAddressError < Error; end
# Raised when the address family is invalid such as an address with an
# unsupported family, an address with an inconsistent family, or an address
# who's family cannot be determined.
class AddressFamilyError < Error; end
# Raised when the address is an invalid length.
class InvalidPrefixError < InvalidAddressError; end
# Returns the address family of this IP address.
attr_reader :family
# Creates a new ipaddr containing the given network byte ordered
# string form of an IP address.
def IPAddr::new_ntoh(addr)
return IPAddr.new(IPAddr::ntop(addr))
end
# Convert a network byte ordered string form of an IP address into
# human readable form.
def IPAddr::ntop(addr)
case addr.size
when 4
s = addr.unpack('C4').join('.')
when 16
s = IN6FORMAT % addr.unpack('n8')
else
raise AddressFamilyError, "unsupported address family"
end
return s
end
# Returns a new ipaddr built by bitwise AND.
def &(other)
return self.clone.set(@addr & coerce_other(other).to_i)
end
# Returns a new ipaddr built by bitwise OR.
def |(other)
return self.clone.set(@addr | coerce_other(other).to_i)
end
# Returns a new ipaddr built by bitwise right-shift.
def >>(num)
return self.clone.set(@addr >> num)
end
# Returns a new ipaddr built by bitwise left shift.
def <<(num)
return self.clone.set(addr_mask(@addr << num))
end
# Returns a new ipaddr built by bitwise negation.
def ~
return self.clone.set(addr_mask(~@addr))
end
# Returns true if two ipaddrs are equal.
def ==(other)
other = coerce_other(other)
return @family == other.family && @addr == other.to_i
end
# Returns a new ipaddr built by masking IP address with the given
# prefixlen/netmask. (e.g. 8, 64, "255.255.255.0", etc.)
def mask(prefixlen)
return self.clone.mask!(prefixlen)
end
# Returns true if the given ipaddr is in the range.
#
# e.g.:
# require 'ipaddr'
# net1 = IPAddr.new("192.168.2.0/24")
# net2 = IPAddr.new("192.168.2.100")
# net3 = IPAddr.new("192.168.3.0")
# p net1.include?(net2) #=> true
# p net1.include?(net3) #=> false
def include?(other)
other = coerce_other(other)
if ipv4_mapped?
if (@mask_addr >> 32) != 0xffffffffffffffffffffffff
return false
end
mask_addr = (@mask_addr & IN4MASK)
addr = (@addr & IN4MASK)
family = Socket::AF_INET
else
mask_addr = @mask_addr
addr = @addr
family = @family
end
if other.ipv4_mapped?
other_addr = (other.to_i & IN4MASK)
other_family = Socket::AF_INET
else
other_addr = other.to_i
other_family = other.family
end
if family != other_family
return false
end
return ((addr & mask_addr) == (other_addr & mask_addr))
end
alias === include?
# Returns the integer representation of the ipaddr.
def to_i
return @addr
end
# Returns a string containing the IP address representation.
def to_s
str = to_string
return str if ipv4?
str.gsub!(/\b0{1,3}([\da-f]+)\b/i, '\1')
loop do
break if str.sub!(/\A0:0:0:0:0:0:0:0\z/, '::')
break if str.sub!(/\b0:0:0:0:0:0:0\b/, ':')
break if str.sub!(/\b0:0:0:0:0:0\b/, ':')
break if str.sub!(/\b0:0:0:0:0\b/, ':')
break if str.sub!(/\b0:0:0:0\b/, ':')
break if str.sub!(/\b0:0:0\b/, ':')
break if str.sub!(/\b0:0\b/, ':')
break
end
str.sub!(/:{3,}/, '::')
if /\A::(ffff:)?([\da-f]{1,4}):([\da-f]{1,4})\z/i =~ str
str = sprintf('::%s%d.%d.%d.%d', $1, $2.hex / 256, $2.hex % 256, $3.hex / 256, $3.hex % 256)
end
str
end
# Returns a string containing the IP address representation in
# canonical form.
def to_string
return _to_string(@addr)
end
# Returns a network byte ordered string form of the IP address.
def hton
case @family
when Socket::AF_INET
return [@addr].pack('N')
when Socket::AF_INET6
return (0..7).map { |i|
(@addr >> (112 - 16 * i)) & 0xffff
}.pack('n8')
else
raise AddressFamilyError, "unsupported address family"
end
end
# Returns true if the ipaddr is an IPv4 address.
def ipv4?
return @family == Socket::AF_INET
end
# Returns true if the ipaddr is an IPv6 address.
def ipv6?
return @family == Socket::AF_INET6
end
# Returns true if the ipaddr is an IPv4-mapped IPv6 address.
def ipv4_mapped?
return ipv6? && (@addr >> 32) == 0xffff
end
# Returns true if the ipaddr is an IPv4-compatible IPv6 address.
def ipv4_compat?
if !ipv6? || (@addr >> 32) != 0
return false
end
a = (@addr & IN4MASK)
return a != 0 && a != 1
end
# Returns a new ipaddr built by converting the native IPv4 address
# into an IPv4-mapped IPv6 address.
def ipv4_mapped
if !ipv4?
raise InvalidAddressError, "not an IPv4 address"
end
return self.clone.set(@addr | 0xffff00000000, Socket::AF_INET6)
end
# Returns a new ipaddr built by converting the native IPv4 address
# into an IPv4-compatible IPv6 address.
def ipv4_compat
if !ipv4?
raise InvalidAddressError, "not an IPv4 address"
end
return self.clone.set(@addr, Socket::AF_INET6)
end
# Returns a new ipaddr built by converting the IPv6 address into a
# native IPv4 address. If the IP address is not an IPv4-mapped or
# IPv4-compatible IPv6 address, returns self.
def native
if !ipv4_mapped? && !ipv4_compat?
return self
end
return self.clone.set(@addr & IN4MASK, Socket::AF_INET)
end
# Returns a string for DNS reverse lookup. It returns a string in
# RFC3172 form for an IPv6 address.
def reverse
case @family
when Socket::AF_INET
return _reverse + ".in-addr.arpa"
when Socket::AF_INET6
return ip6_arpa
else
raise AddressFamilyError, "unsupported address family"
end
end
# Returns a string for DNS reverse lookup compatible with RFC3172.
def ip6_arpa
if !ipv6?
raise InvalidAddressError, "not an IPv6 address"
end
return _reverse + ".ip6.arpa"
end
# Returns a string for DNS reverse lookup compatible with RFC1886.
def ip6_int
if !ipv6?
raise InvalidAddressError, "not an IPv6 address"
end
return _reverse + ".ip6.int"
end
# Returns the successor to the ipaddr.
def succ
return self.clone.set(@addr + 1, @family)
end
# Compares the ipaddr with another.
def <=>(other)
other = coerce_other(other)
return nil if other.family != @family
return @addr <=> other.to_i
end
include Comparable
# Checks equality used by Hash.
def eql?(other)
return self.class == other.class && self.hash == other.hash && self == other
end
# Returns a hash value used by Hash, Set, and Array classes
def hash
return ([@addr, @mask_addr].hash << 1) | (ipv4? ? 0 : 1)
end
# Creates a Range object for the network address.
def to_range
begin_addr = (@addr & @mask_addr)
case @family
when Socket::AF_INET
end_addr = (@addr | (IN4MASK ^ @mask_addr))
when Socket::AF_INET6
end_addr = (@addr | (IN6MASK ^ @mask_addr))
else
raise AddressFamilyError, "unsupported address family"
end
return clone.set(begin_addr, @family)..clone.set(end_addr, @family)
end
# Returns a string containing a human-readable representation of the
# ipaddr. ("#<IPAddr: family:address/mask>")
def inspect
case @family
when Socket::AF_INET
af = "IPv4"
when Socket::AF_INET6
af = "IPv6"
else
raise AddressFamilyError, "unsupported address family"
end
return sprintf("#<%s: %s:%s/%s>", self.class.name,
af, _to_string(@addr), _to_string(@mask_addr))
end
protected
# Set +@addr+, the internal stored ip address, to given +addr+. The
# parameter +addr+ is validated using the first +family+ member,
# which is +Socket::AF_INET+ or +Socket::AF_INET6+.
def set(addr, *family)
case family[0] ? family[0] : @family
when Socket::AF_INET
if addr < 0 || addr > IN4MASK
raise InvalidAddressError, "invalid address"
end
when Socket::AF_INET6
if addr < 0 || addr > IN6MASK
raise InvalidAddressError, "invalid address"
end
else
raise AddressFamilyError, "unsupported address family"
end
@addr = addr
if family[0]
@family = family[0]
end
return self
end
# Set current netmask to given mask.
def mask!(mask)
if mask.kind_of?(String)
if mask =~ /^\d+$/
prefixlen = mask.to_i
else
m = IPAddr.new(mask)
if m.family != @family
raise InvalidPrefixError, "address family is not same"
end
@mask_addr = m.to_i
@addr &= @mask_addr
return self
end
else
prefixlen = mask
end
case @family
when Socket::AF_INET
if prefixlen < 0 || prefixlen > 32
raise InvalidPrefixError, "invalid length"
end
masklen = 32 - prefixlen
@mask_addr = ((IN4MASK >> masklen) << masklen)
when Socket::AF_INET6
if prefixlen < 0 || prefixlen > 128
raise InvalidPrefixError, "invalid length"
end
masklen = 128 - prefixlen
@mask_addr = ((IN6MASK >> masklen) << masklen)
else
raise AddressFamilyError, "unsupported address family"
end
@addr = ((@addr >> masklen) << masklen)
return self
end
private
# Creates a new ipaddr object either from a human readable IP
# address representation in string, or from a packed in_addr value
# followed by an address family.
#
# In the former case, the following are the valid formats that will
# be recognized: "address", "address/prefixlen" and "address/mask",
# where IPv6 address may be enclosed in square brackets (`[' and
# `]'). If a prefixlen or a mask is specified, it returns a masked
# IP address. Although the address family is determined
# automatically from a specified string, you can specify one
# explicitly by the optional second argument.
#
# Otherwise an IP address is generated from a packed in_addr value
# and an address family.
#
# The IPAddr class defines many methods and operators, and some of
# those, such as &, |, include? and ==, accept a string, or a packed
# in_addr value instead of an IPAddr object.
def initialize(addr = '::', family = Socket::AF_UNSPEC)
if !addr.kind_of?(String)
case family
when Socket::AF_INET, Socket::AF_INET6
set(addr.to_i, family)
@mask_addr = (family == Socket::AF_INET) ? IN4MASK : IN6MASK
return
when Socket::AF_UNSPEC
raise AddressFamilyError, "address family must be specified"
else
raise AddressFamilyError, "unsupported address family: #{family}"
end
end
prefix, prefixlen = addr.split('/')
if prefix =~ /^\[(.*)\]$/i
prefix = $1
family = Socket::AF_INET6
end
# It seems AI_NUMERICHOST doesn't do the job.
#Socket.getaddrinfo(left, nil, Socket::AF_INET6, Socket::SOCK_STREAM, nil,
# Socket::AI_NUMERICHOST)
@addr = @family = nil
if family == Socket::AF_UNSPEC || family == Socket::AF_INET
@addr = in_addr(prefix)
if @addr
@family = Socket::AF_INET
end
end
if !@addr && (family == Socket::AF_UNSPEC || family == Socket::AF_INET6)
@addr = in6_addr(prefix)
@family = Socket::AF_INET6
end
if family != Socket::AF_UNSPEC && @family != family
raise AddressFamilyError, "address family mismatch"
end
if prefixlen
mask!(prefixlen)
else
@mask_addr = (@family == Socket::AF_INET) ? IN4MASK : IN6MASK
end
end
def coerce_other(other)
case other
when IPAddr
other
when String
self.class.new(other)
else
self.class.new(other, @family)
end
end
def in_addr(addr)
case addr
when Array
octets = addr
else
m = RE_IPV4ADDRLIKE.match(addr) or return nil
octets = m.captures
end
octets.inject(0) { |i, s|
(n = s.to_i) < 256 or raise InvalidAddressError, "invalid address"
s.match(/\A0./) and raise InvalidAddressError, "zero-filled number in IPv4 address is ambiguous"
i << 8 | n
}
end
def in6_addr(left)
case left
when RE_IPV6ADDRLIKE_FULL
if $2
addr = in_addr($~[2,4])
left = $1 + ':'
else
addr = 0
end
right = ''
when RE_IPV6ADDRLIKE_COMPRESSED
if $4
left.count(':') <= 6 or raise InvalidAddressError, "invalid address"
addr = in_addr($~[4,4])
left = $1
right = $3 + '0:0'
else
left.count(':') <= ($1.empty? || $2.empty? ? 8 : 7) or
raise InvalidAddressError, "invalid address"
left = $1
right = $2
addr = 0
end
else
raise InvalidAddressError, "invalid address"
end
l = left.split(':')
r = right.split(':')
rest = 8 - l.size - r.size
if rest < 0
return nil
end
(l + Array.new(rest, '0') + r).inject(0) { |i, s|
i << 16 | s.hex
} | addr
end
def addr_mask(addr)
case @family
when Socket::AF_INET
return addr & IN4MASK
when Socket::AF_INET6
return addr & IN6MASK
else
raise AddressFamilyError, "unsupported address family"
end
end
def _reverse
case @family
when Socket::AF_INET
return (0..3).map { |i|
(@addr >> (8 * i)) & 0xff
}.join('.')
when Socket::AF_INET6
return ("%.32x" % @addr).reverse!.gsub!(/.(?!$)/, '\&.')
else
raise AddressFamilyError, "unsupported address family"
end
end
def _to_string(addr)
case @family
when Socket::AF_INET
return (0..3).map { |i|
(addr >> (24 - 8 * i)) & 0xff
}.join('.')
when Socket::AF_INET6
return (("%.32x" % addr).gsub!(/.{4}(?!$)/, '\&:'))
else
raise AddressFamilyError, "unsupported address family"
end
end
end
unless Socket.const_defined? :AF_INET6
class Socket < BasicSocket
# IPv6 protocol family
AF_INET6 = Object.new
end
class << IPSocket
private
def valid_v6?(addr)
case addr
when IPAddr::RE_IPV6ADDRLIKE_FULL
if $2
$~[2,4].all? {|i| i.to_i < 256 }
else
true
end
when IPAddr::RE_IPV6ADDRLIKE_COMPRESSED
if $4
addr.count(':') <= 6 && $~[4,4].all? {|i| i.to_i < 256}
else
addr.count(':') <= 7
end
else
false
end
end
alias getaddress_orig getaddress
public
# Returns a +String+ based representation of a valid DNS hostname,
# IPv4 or IPv6 address.
#
# IPSocket.getaddress 'localhost' #=> "::1"
# IPSocket.getaddress 'broadcasthost' #=> "255.255.255.255"
# IPSocket.getaddress 'www.ruby-lang.org' #=> "221.186.184.68"
# IPSocket.getaddress 'www.ccc.de' #=> "2a00:1328:e102:ccc0::122"
def getaddress(s)
if valid_v6?(s)
s
else
getaddress_orig(s)
end
end
end
end
if $0 == __FILE__
eval DATA.read, nil, $0, __LINE__+4
end
__END__
require 'test/unit'
class TC_IPAddr < Test::Unit::TestCase
def test_s_new
[
["3FFE:505:ffff::/48"],
["0:0:0:1::"],
["2001:200:300::/48"],
["2001:200:300::192.168.1.2/48"],
["1:2:3:4:5:6:7::"],
["::2:3:4:5:6:7:8"],
].each { |args|
assert_nothing_raised {
IPAddr.new(*args)
}
}
a = IPAddr.new
assert_equal("::", a.to_s)
assert_equal("0000:0000:0000:0000:0000:0000:0000:0000", a.to_string)
assert_equal(Socket::AF_INET6, a.family)
a = IPAddr.new("0123:4567:89ab:cdef:0ABC:DEF0:1234:5678")
assert_equal("123:4567:89ab:cdef:abc:def0:1234:5678", a.to_s)
assert_equal("0123:4567:89ab:cdef:0abc:def0:1234:5678", a.to_string)
assert_equal(Socket::AF_INET6, a.family)
a = IPAddr.new("3ffe:505:2::/48")
assert_equal("3ffe:505:2::", a.to_s)
assert_equal("3ffe:0505:0002:0000:0000:0000:0000:0000", a.to_string)
assert_equal(Socket::AF_INET6, a.family)
assert_equal(false, a.ipv4?)
assert_equal(true, a.ipv6?)
assert_equal("#<IPAddr: IPv6:3ffe:0505:0002:0000:0000:0000:0000:0000/ffff:ffff:ffff:0000:0000:0000:0000:0000>", a.inspect)
a = IPAddr.new("3ffe:505:2::/ffff:ffff:ffff::")
assert_equal("3ffe:505:2::", a.to_s)
assert_equal("3ffe:0505:0002:0000:0000:0000:0000:0000", a.to_string)
assert_equal(Socket::AF_INET6, a.family)
a = IPAddr.new("0.0.0.0")
assert_equal("0.0.0.0", a.to_s)
assert_equal("0.0.0.0", a.to_string)
assert_equal(Socket::AF_INET, a.family)
a = IPAddr.new("192.168.1.2")
assert_equal("192.168.1.2", a.to_s)
assert_equal("192.168.1.2", a.to_string)
assert_equal(Socket::AF_INET, a.family)
assert_equal(true, a.ipv4?)
assert_equal(false, a.ipv6?)
a = IPAddr.new("192.168.1.2/24")
assert_equal("192.168.1.0", a.to_s)
assert_equal("192.168.1.0", a.to_string)
assert_equal(Socket::AF_INET, a.family)
assert_equal("#<IPAddr: IPv4:192.168.1.0/255.255.255.0>", a.inspect)
a = IPAddr.new("192.168.1.2/255.255.255.0")
assert_equal("192.168.1.0", a.to_s)
assert_equal("192.168.1.0", a.to_string)
assert_equal(Socket::AF_INET, a.family)
assert_equal("0:0:0:1::", IPAddr.new("0:0:0:1::").to_s)
assert_equal("2001:200:300::", IPAddr.new("2001:200:300::/48").to_s)
assert_equal("2001:200:300::", IPAddr.new("[2001:200:300::]/48").to_s)
assert_equal("1:2:3:4:5:6:7:0", IPAddr.new("1:2:3:4:5:6:7::").to_s)
assert_equal("0:2:3:4:5:6:7:8", IPAddr.new("::2:3:4:5:6:7:8").to_s)
assert_raises(IPAddr::InvalidAddressError) { IPAddr.new("192.168.0.256") }
assert_raises(IPAddr::InvalidAddressError) { IPAddr.new("192.168.0.011") }
assert_raises(IPAddr::InvalidAddressError) { IPAddr.new("fe80::1%fxp0") }
assert_raises(IPAddr::InvalidAddressError) { IPAddr.new("[192.168.1.2]/120") }
assert_raises(IPAddr::InvalidPrefixError) { IPAddr.new("::1/255.255.255.0") }
assert_raises(IPAddr::InvalidPrefixError) { IPAddr.new("::1/129") }
assert_raises(IPAddr::InvalidPrefixError) { IPAddr.new("192.168.0.1/33") }
assert_raises(IPAddr::AddressFamilyError) { IPAddr.new(1) }
assert_raises(IPAddr::AddressFamilyError) { IPAddr.new("::ffff:192.168.1.2/120", Socket::AF_INET) }
end
def test_s_new_ntoh
addr = ''
IPAddr.new("1234:5678:9abc:def0:1234:5678:9abc:def0").hton.each_byte { |c|
addr += sprintf("%02x", c)
}
assert_equal("123456789abcdef0123456789abcdef0", addr)
addr = ''
IPAddr.new("123.45.67.89").hton.each_byte { |c|
addr += sprintf("%02x", c)
}
assert_equal(sprintf("%02x%02x%02x%02x", 123, 45, 67, 89), addr)
a = IPAddr.new("3ffe:505:2::")
assert_equal("3ffe:505:2::", IPAddr.new_ntoh(a.hton).to_s)
a = IPAddr.new("192.168.2.1")
assert_equal("192.168.2.1", IPAddr.new_ntoh(a.hton).to_s)
end
def test_ipv4_compat
a = IPAddr.new("::192.168.1.2")
assert_equal("::192.168.1.2", a.to_s)
assert_equal("0000:0000:0000:0000:0000:0000:c0a8:0102", a.to_string)
assert_equal(Socket::AF_INET6, a.family)
assert_equal(true, a.ipv4_compat?)
b = a.native
assert_equal("192.168.1.2", b.to_s)
assert_equal(Socket::AF_INET, b.family)
assert_equal(false, b.ipv4_compat?)
a = IPAddr.new("192.168.1.2")
b = a.ipv4_compat
assert_equal("::192.168.1.2", b.to_s)
assert_equal(Socket::AF_INET6, b.family)
end
def test_ipv4_mapped
a = IPAddr.new("::ffff:192.168.1.2")
assert_equal("::ffff:192.168.1.2", a.to_s)
assert_equal("0000:0000:0000:0000:0000:ffff:c0a8:0102", a.to_string)
assert_equal(Socket::AF_INET6, a.family)
assert_equal(true, a.ipv4_mapped?)
b = a.native
assert_equal("192.168.1.2", b.to_s)
assert_equal(Socket::AF_INET, b.family)
assert_equal(false, b.ipv4_mapped?)
a = IPAddr.new("192.168.1.2")
b = a.ipv4_mapped
assert_equal("::ffff:192.168.1.2", b.to_s)
assert_equal(Socket::AF_INET6, b.family)
end
def test_reverse
assert_equal("f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.0.5.0.5.0.e.f.f.3.ip6.arpa", IPAddr.new("3ffe:505:2::f").reverse)
assert_equal("1.2.168.192.in-addr.arpa", IPAddr.new("192.168.2.1").reverse)
end
def test_ip6_arpa
assert_equal("f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.0.5.0.5.0.e.f.f.3.ip6.arpa", IPAddr.new("3ffe:505:2::f").ip6_arpa)
assert_raises(IPAddr::InvalidAddressError) {
IPAddr.new("192.168.2.1").ip6_arpa
}
end
def test_ip6_int
assert_equal("f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.0.5.0.5.0.e.f.f.3.ip6.int", IPAddr.new("3ffe:505:2::f").ip6_int)
assert_raises(IPAddr::InvalidAddressError) {
IPAddr.new("192.168.2.1").ip6_int
}
end
def test_to_s
assert_equal("3ffe:0505:0002:0000:0000:0000:0000:0001", IPAddr.new("3ffe:505:2::1").to_string)
assert_equal("3ffe:505:2::1", IPAddr.new("3ffe:505:2::1").to_s)
end
end
class TC_Operator < Test::Unit::TestCase
IN6MASK32 = "ffff:ffff::"
IN6MASK128 = "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"
def setup
@in6_addr_any = IPAddr.new()
@a = IPAddr.new("3ffe:505:2::/48")
@b = IPAddr.new("0:0:0:1::")
@c = IPAddr.new(IN6MASK32)
end
alias set_up setup
def test_or
assert_equal("3ffe:505:2:1::", (@a | @b).to_s)
a = @a
a |= @b
assert_equal("3ffe:505:2:1::", a.to_s)
assert_equal("3ffe:505:2::", @a.to_s)
assert_equal("3ffe:505:2:1::",
(@a | 0x00000000000000010000000000000000).to_s)
end
def test_and
assert_equal("3ffe:505::", (@a & @c).to_s)
a = @a
a &= @c
assert_equal("3ffe:505::", a.to_s)
assert_equal("3ffe:505:2::", @a.to_s)
assert_equal("3ffe:505::", (@a & 0xffffffff000000000000000000000000).to_s)
end
def test_shift_right
assert_equal("0:3ffe:505:2::", (@a >> 16).to_s)
a = @a
a >>= 16
assert_equal("0:3ffe:505:2::", a.to_s)
assert_equal("3ffe:505:2::", @a.to_s)
end
def test_shift_left
assert_equal("505:2::", (@a << 16).to_s)
a = @a
a <<= 16
assert_equal("505:2::", a.to_s)
assert_equal("3ffe:505:2::", @a.to_s)
end
def test_carrot
a = ~@in6_addr_any
assert_equal(IN6MASK128, a.to_s)
assert_equal("::", @in6_addr_any.to_s)
end
def test_equal
assert_equal(true, @a == IPAddr.new("3FFE:505:2::"))
assert_equal(true, @a == IPAddr.new("3ffe:0505:0002::"))
assert_equal(true, @a == IPAddr.new("3ffe:0505:0002:0:0:0:0:0"))
assert_equal(false, @a == IPAddr.new("3ffe:505:3::"))
assert_equal(true, @a != IPAddr.new("3ffe:505:3::"))
assert_equal(false, @a != IPAddr.new("3ffe:505:2::"))
end
def test_mask
a = @a.mask(32)
assert_equal("3ffe:505::", a.to_s)
assert_equal("3ffe:505:2::", @a.to_s)
end
def test_include?
assert_equal(true, @a.include?(IPAddr.new("3ffe:505:2::")))
assert_equal(true, @a.include?(IPAddr.new("3ffe:505:2::1")))
assert_equal(false, @a.include?(IPAddr.new("3ffe:505:3::")))
net1 = IPAddr.new("192.168.2.0/24")
assert_equal(true, net1.include?(IPAddr.new("192.168.2.0")))
assert_equal(true, net1.include?(IPAddr.new("192.168.2.255")))
assert_equal(false, net1.include?(IPAddr.new("192.168.3.0")))
# test with integer parameter
int = (192 << 24) + (168 << 16) + (2 << 8) + 13
assert_equal(true, net1.include?(int))
assert_equal(false, net1.include?(int+255))
end
def test_hash
a1 = IPAddr.new('192.168.2.0')
a2 = IPAddr.new('192.168.2.0')
a3 = IPAddr.new('3ffe:505:2::1')
a4 = IPAddr.new('3ffe:505:2::1')
a5 = IPAddr.new('127.0.0.1')
a6 = IPAddr.new('::1')
a7 = IPAddr.new('192.168.2.0/25')
a8 = IPAddr.new('192.168.2.0/25')
h = { a1 => 'ipv4', a2 => 'ipv4', a3 => 'ipv6', a4 => 'ipv6', a5 => 'ipv4', a6 => 'ipv6', a7 => 'ipv4', a8 => 'ipv4'}
assert_equal(5, h.size)
assert_equal('ipv4', h[a1])
assert_equal('ipv4', h[a2])
assert_equal('ipv6', h[a3])
assert_equal('ipv6', h[a4])
require 'set'
s = Set[a1, a2, a3, a4, a5, a6, a7, a8]
assert_equal(5, s.size)
assert_equal(true, s.include?(a1))
assert_equal(true, s.include?(a2))
assert_equal(true, s.include?(a3))
assert_equal(true, s.include?(a4))
assert_equal(true, s.include?(a5))
assert_equal(true, s.include?(a6))
end
end