98 lines
2.6 KiB
Erlang
98 lines
2.6 KiB
Erlang
%%%----------------------------------------------------------------------
|
|
%%% File : sha.erl
|
|
%%% Author : Alexey Shchepin <alexey@process-one.net>
|
|
%%% Purpose :
|
|
%%% Created : 20 Dec 2002 by Alexey Shchepin <alexey@process-one.net>
|
|
%%%
|
|
%%%
|
|
%%% ejabberd, Copyright (C) 2002-2012 ProcessOne
|
|
%%%
|
|
%%% This program is free software; you can redistribute it and/or
|
|
%%% modify it under the terms of the GNU General Public License as
|
|
%%% published by the Free Software Foundation; either version 2 of the
|
|
%%% License, or (at your option) any later version.
|
|
%%%
|
|
%%% This program is distributed in the hope that it will be useful,
|
|
%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
%%% General Public License for more details.
|
|
%%%
|
|
%%% You should have received a copy of the GNU General Public License
|
|
%%% along with this program; if not, write to the Free Software
|
|
%%% Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
%%% 02111-1307 USA
|
|
%%%
|
|
%%%----------------------------------------------------------------------
|
|
|
|
-module(sha).
|
|
-author('alexey@process-one.net').
|
|
|
|
-export([start/0, sha/1, sha1/1, sha224/1, sha256/1, sha384/1,
|
|
sha512/1]).
|
|
|
|
-ifdef(HAVE_MD2).
|
|
-export([md2/1]).
|
|
-endif.
|
|
|
|
-include("ejabberd.hrl").
|
|
|
|
-define(DRIVER, sha_drv).
|
|
|
|
start() ->
|
|
crypto:start(),
|
|
Res = case erl_ddll:load_driver(ejabberd:get_so_path(), ?DRIVER) of
|
|
ok -> ok;
|
|
{error, already_loaded} -> ok;
|
|
Err -> Err
|
|
end,
|
|
case Res of
|
|
ok ->
|
|
Port = open_port({spawn, atom_to_list(?DRIVER)}, [binary]),
|
|
register(?DRIVER, Port);
|
|
{error, Reason} ->
|
|
?CRITICAL_MSG("unable to load driver '~s': ~s",
|
|
[driver_path(), erl_ddll:format_error(Reason)])
|
|
end.
|
|
|
|
digit_to_xchar(D) when (D >= 0) and (D < 10) ->
|
|
D + 48;
|
|
digit_to_xchar(D) ->
|
|
D + 87.
|
|
|
|
sha(Text) ->
|
|
Bin = crypto:sha(Text),
|
|
lists:reverse(ints_to_rxstr(binary_to_list(Bin), [])).
|
|
|
|
ints_to_rxstr([], Res) ->
|
|
Res;
|
|
ints_to_rxstr([N | Ns], Res) ->
|
|
ints_to_rxstr(Ns, [digit_to_xchar(N rem 16),
|
|
digit_to_xchar(N div 16) | Res]).
|
|
|
|
sha1(Text) ->
|
|
crypto:sha(Text).
|
|
|
|
sha224(Text) ->
|
|
erlang:port_control(?DRIVER, 224, Text).
|
|
|
|
sha256(Text) ->
|
|
erlang:port_control(?DRIVER, 256, Text).
|
|
|
|
sha384(Text) ->
|
|
erlang:port_control(?DRIVER, 384, Text).
|
|
|
|
sha512(Text) ->
|
|
erlang:port_control(?DRIVER, 512, Text).
|
|
|
|
-ifdef(HAVE_MD2).
|
|
md2(Text) ->
|
|
erlang:port_control(?DRIVER, 2, Text).
|
|
-endif.
|
|
|
|
driver_path() ->
|
|
Suffix = case os:type() of
|
|
{win32, _} -> ".dll";
|
|
_ -> ".so"
|
|
end,
|
|
filename:join(ejabberd:get_so_path(), atom_to_list(?DRIVER) ++ Suffix).
|