package macaddr

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Class type

A library for manipulation of MAC address representations.

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exception Parse_error of string * string

Parse_error (err,packet) is raised when parsing of the MAC address syntax fails. err contains a human-readable error and packet is the original octet list that failed to parse.

type t

Type of the hardware address (MAC) of an ethernet interface.

Functions converting MAC addresses to/from octets/string

val of_octets_exn : string -> t

of_octets_exn buf is the hardware address extracted from buf. Raises Parse_error if buf has not length 6.

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

Same as of_octets_exn but returns a result type instead of raising an exception.

val of_string_exn : string -> t

of_string_exn mac_string is the human-readable hardware address represented by mac_string. Raises Parse_error if mac_string is not a valid representation of a MAC address.

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

Same as of_string_exn but returns a result type instead of raising an exception.

val to_octets : t -> string

to_octets mac_addr is a string of size 6 encoding mac_addr as a sequence of bytes.

val to_string : ?sep:char -> t -> string

to_string ?(sep=':') mac_addr is the sep-separated string representation of mac_addr, i.e. xx:xx:xx:xx:xx:xx.

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

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

val broadcast : t

broadcast is ff:ff:ff:ff:ff:ff.

val make_local : (int -> int) -> t

make_local bytegen creates a unicast, locally administered MAC address given a function mapping octet offset to octet value.

val get_oui : t -> int

get_oui macaddr is the integer organization identifier for macaddr.

val is_local : t -> bool

is_local macaddr is the predicate on the locally administered bit of macaddr.

val is_unicast : t -> bool

is_unicast macaddr the is the predicate on the unicast bit of macaddr.

include Stdlib.Map.OrderedType with type t := t
val compare : t -> t -> int

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