Module: NetAddr

Defined in:
lib/ipv4.rb,
lib/ipv6.rb,
lib/util.rb,
lib/eui48.rb,
lib/eui64.rb,
lib/mask32.rb,
lib/ipv4net.rb,
lib/ipv6net.rb,
lib/mask128.rb,
lib/netaddr.rb

Defined Under Namespace

Classes: EUI48, EUI64, IPv4, IPv4Net, IPv6, IPv6Net, Mask128, Mask32, Util, ValidationError

Constant Summary collapse

F32 =

32 bits worth of ‘1’

2**32-1
F128 =

128 bits worth of ‘1’

2**128-1

Class Method Summary collapse

Class Method Details

.ipv4_prefix_len(size) ⇒ Object

ipv4_prefix_len returns the prefix length needed to hold the number of IP addresses specified by “size”.



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# File 'lib/netaddr.rb', line 26

def ipv4_prefix_len(size)
	prefix_len = 32
	32.downto(0) do |i|
		hostbits = 32 - prefix_len
		max = 1 << hostbits
		if (size <= max)
			break
		end
		prefix_len -= 1
	end
	return prefix_len
end

.sort_IPv4(list) ⇒ Object

sort_IPv4 sorts a list of IPv4 objects in ascending order. It will return a new list with any non IPv4 objects removed.



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# File 'lib/netaddr.rb', line 42

def sort_IPv4(list)
	if ( !list.kind_of?(Array) )
		raise ArgumentError, "Expected an Array for 'list' but got a #{list.class}."
	end
	filtered = Util.filter_IPv4(list)
	return Util.quick_sort(filtered)
end

.sort_IPv4Net(list) ⇒ Object

sort_IPv4Net sorts a list of IPv4Net objects in ascending order. It will return a new list with any non IPv4Net objects removed.



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# File 'lib/netaddr.rb', line 64

def sort_IPv4Net(list)
	if ( !list.kind_of?(Array) )
		raise ArgumentError, "Expected an Array for 'list' but got a #{list.class}."
	end
	filtered = Util.filter_IPv4Net(list)
	return Util.quick_sort(filtered)
end

.sort_IPv6(list) ⇒ Object

sort_IPv6 sorts a list of IPv6 objects in ascending order. It will return a new list with any non IPv6 objects removed.



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# File 'lib/netaddr.rb', line 53

def sort_IPv6(list)
	if ( !list.kind_of?(Array) )
		raise ArgumentError, "Expected an Array for 'list' but got a #{list.class}."
	end
	filtered = Util.filter_IPv6(list)
	return Util.quick_sort(filtered)
end

.sort_IPv6Net(list) ⇒ Object

sort_IPv6Net sorts a list of IPv6Net objects in ascending order. It will return a new list with any non IPv6Net objects removed.



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# File 'lib/netaddr.rb', line 75

def sort_IPv6Net(list)
	if ( !list.kind_of?(Array) )
		raise ArgumentError, "Expected an Array for 'list' but got a #{list.class}."
	end
	filtered = Util.filter_IPv6Net(list)
	return Util.quick_sort(filtered)
end

.summ_IPv4Net(list) ⇒ Object

summ_IPv4Net summarizes a list of IPv4Net objects as much as possible. It will return a new list with any non IPv4Net objects removed.



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# File 'lib/netaddr.rb', line 86

def summ_IPv4Net(list)
	list = Util.filter_IPv4Net(list)
	if (list.length>1)
		list = Util.discard_subnets(list)
		return Util.summ_peers(list)
	end
	return [].concat(list)
end

.summ_IPv6Net(list) ⇒ Object

summ_IPv6Net summarizes a list of IPv6Net objects as much as possible. It will return a new list with any non IPv6Net objects removed.



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# File 'lib/netaddr.rb', line 98

def summ_IPv6Net(list)
	list = Util.filter_IPv6Net(list)
	if (list.length>1)
		list = Util.discard_subnets(list)
		return Util.summ_peers(list)
	end
	return [].concat(list)
end