------------------------------------------------------------------------------
-- Copyright (c) 2014, Natacha Porté --
-- --
-- Permission to use, copy, modify, and distribute this software for any --
-- purpose with or without fee is hereby granted, provided that the above --
-- copyright notice and this permission notice appear in all copies. --
-- --
-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES --
-- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF --
-- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR --
-- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES --
-- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN --
-- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF --
-- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. --
------------------------------------------------------------------------------
with Ada.Command_Line;
with Ada.Streams;
with Ada.Text_IO;
with Ada.Text_IO.Text_Streams;
with Natools.S_Expressions;
with Natools.S_Expressions.Encodings;
procedure HMAC.Main is
begin
case Ada.Command_Line.Argument_Count is
when 0 =>
Ada.Text_IO.Put_Line ("Usage: "
& Ada.Command_Line.Command_Name
& " key [message]");
when 1 =>
declare
Context : HMAC_Implementation.Context
:= HMAC_Implementation.Create (Ada.Command_Line.Argument (1));
Block : Ada.Streams.Stream_Element_Array (1 .. 64);
Last : Ada.Streams.Stream_Element_Offset;
Input : constant Ada.Text_IO.Text_Streams.Stream_Access
:= Ada.Text_IO.Text_Streams.Stream (Ada.Text_IO.Current_Input);
begin
loop
Input.Read (Block, Last);
exit when Last not in Block'Range;
HMAC_Implementation.Update
(Context, Block (Block'First .. Last));
end loop;
Ada.Text_IO.Put_Line
(Natools.S_Expressions.To_String
(Natools.S_Expressions.Encodings.Encode_Hex
(HMAC_Implementation.Digest (Context),
Natools.S_Expressions.Encodings.Lower)));
end;
when others =>
for I in 2 .. Ada.Command_Line.Argument_Count loop
Ada.Text_IO.Put_Line
(Natools.S_Expressions.To_String
(Natools.S_Expressions.Encodings.Encode_Hex
(HMAC_Implementation.Digest
(Ada.Command_Line.Argument (1),
Natools.S_Expressions.To_Atom
(Ada.Command_Line.Argument (I))),
Natools.S_Expressions.Encodings.Lower)));
end loop;
end case;
end HMAC.Main;