blob: 1eb1e6a572698237d539e58365a4cfccb86f5057 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
%%% Copyright (c) 2014, NORDUnet A/S.
%%% See LICENSE for licensing information.
-module(hex).
-export([bin_to_hexstr/1,hexstr_to_bin/1]).
-spec bin_to_hexstr(binary()) -> string().
bin_to_hexstr(Bin) ->
lists:flatten([io_lib:format("~2.16.0B", [X]) ||
X <- binary_to_list(Bin)]).
hexstr_to_bin(S) ->
hexstr_to_bin(S, []).
hexstr_to_bin([], Acc) ->
list_to_binary(lists:reverse(Acc));
hexstr_to_bin([X,Y|T], Acc) ->
{ok, [V], []} = io_lib:fread("~16u", [X,Y]),
hexstr_to_bin(T, [V | Acc]).
|
