ipaddr 5.3.0 · OCaml Package

A module for manipulating IPv4 network prefixes (CIDR).

type addr = t

type t

Type of a internet protocol subnet: an address and prefix length.

val mask : int -> addr

mask n is the pseudo-address of an n bit subnet mask.

val make : int -> addr -> t

make n addr is the cidr of addr with n bits prefix.

val prefix : t -> t

prefix cidr is the subnet prefix of cidr where all non-prefix bits set to 0.

val network_address : t -> addr -> addr

network_address cidr addr is the address with prefix cidr and suffix from addr. See <http://tools.ietf.org/html/rfc4291#section-2.3>.

val of_string : string -> (t, [> `Msg of string ]) Pervasives.result

of_string cidr is the subnet prefix represented by the CIDR string, cidr. Returns a human-readable parsing error message if cidr is not a valid representation of a CIDR notation routing prefix.

val of_string_exn : string -> t

of_string_exn cidr is the subnet prefix represented by the CIDR string, cidr. Raises Parse_error if cidr is not a valid representation of a CIDR notation routing prefix.

val of_string_raw : string -> int Pervasives.ref -> t

Same as of_string_exn but takes as an extra argument the offset into the string for reading.

val to_string : t -> string

to_string cidr is the CIDR notation string representation of cidr, i.e. XXX.XX.X.XXX/XX.

val pp : Format.formatter -> t -> unit

pp f cidr outputs a human-readable representation of cidr to the formatter f.

val to_buffer : Buffer.t -> t -> unit

to_buffer buf cidr writes the string representation of cidr into the buffer buf.

val of_netmask_exn : netmask:addr -> address:addr -> t

of_netmask_exn ~netmask ~address is the subnet prefix of address with netmask netmask.

val of_netmask : 
  netmask:addr ->
  address:addr ->
  (t, [> `Msg of string ]) Pervasives.result

of_netmask ~netmask ~address is the cidr of address with netmask netmask.

val mem : addr -> t -> bool

mem ip subnet checks whether ip is found within subnet.

val subset : subnet:t -> network:t -> bool

subset ~subnet ~network checks whether subnet is contained within network.

val of_addr : addr -> t

of_addr ip create a subnet composed of only one address, ip. It is the same as make 32 ip.

val global : t

The default route, all addresses in IPv4-space, 0.0.0.0/0.

val loopback : t

The host loopback network, 127.0.0.0/8.

val link : t

The local-link network, 169.254.0.0/16.

val relative : t

The relative addressing network, 0.0.0.0/8.

val multicast : t

The multicast network, 224.0.0.0/4.

val private_10 : t

The private subnet with 10 as first octet, 10.0.0.0/8.

val private_172 : t

The private subnet with 172 as first octet, 172.16.0.0/12.

val private_192 : t

The private subnet with 192 as first octet, 192.168.0.0/16.

val private_blocks : t list

The privately addressable networks: loopback, link, private_10, private_172, private_192.

val broadcast : t -> addr

broadcast subnet is the broadcast address for subnet.

val network : t -> addr

network subnet is the address for subnet.

val netmask : t -> addr

netmask subnet is the netmask for subnet.

val address : t -> addr

address cidr is the address for cidr.

val bits : t -> int

bits cidr is the bit size of the cidr prefix.

val first : t -> addr

first cidr is first valid unicast address in this cidr.

val last : t -> addr

last cidr is last valid unicast address in this cidr.

include Map.OrderedType with type t := t

val compare : t -> t -> int

A total ordering function over the keys. This is a two-argument function f such that f e1 e2 is zero if the keys e1 and e2 are equal, f e1 e2 is strictly negative if e1 is smaller than e2, and f e1 e2 is strictly positive if e1 is greater than e2. Example: a suitable ordering function is the generic structural comparison function Pervasives.compare.

package ipaddr