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-- 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.Strings.Unbounded;
with Ada.Text_IO;
with Ada.Text_IO.Text_Streams;
with Natools.Getopt_Long;
with Natools.S_Expressions;
with Natools.S_Expressions.Encodings;
procedure HMAC.Main is
procedure Base64_Output (Digest : in Ada.Streams.Stream_Element_Array);
-- Output the given binary Digest in base-64
procedure Lower_Hex_Output (Digest : in Ada.Streams.Stream_Element_Array);
-- Output the given binary Digest in lower-case hexadecimal
procedure Raw_Output (Digest : in Ada.Streams.Stream_Element_Array);
-- Output the given binary Direct directly
procedure Upper_Hex_Output (Digest : in Ada.Streams.Stream_Element_Array);
-- Output the given binary Digest in upper-case hexadecimal
package Options is
type Id is
(Base64_Output,
Lower_Hex_Output,
Raw_Output,
Upper_Hex_Output);
end Options;
package Getopt is new Natools.Getopt_Long (Options.Id);
type Encode_Output is not null access procedure
(Digest : in Ada.Streams.Stream_Element_Array);
type Callback is new Getopt.Handlers.Callback with record
Output : Encode_Output := Lower_Hex_Output'Access;
Key : Ada.Strings.Unbounded.Unbounded_String;
Has_Key : Boolean := False;
Done : Boolean := False;
end record;
overriding procedure Option
(Handler : in out Callback;
Id : in Options.Id;
Argument : in String);
overriding procedure Argument
(Handler : in out Callback;
Argument : in String);
overriding procedure Option
(Handler : in out Callback;
Id : in Options.Id;
Argument : in String)
is
pragma Unreferenced (Argument);
begin
case Ada.Command_Line.Argument_Count is
when 0 =>
Ada.Text_IO.Put_Line ("Usage: "
& Ada.Command_Line.Command_Name
begin
case Id is
when Options.Base64_Output =>
Handler.Output := Base64_Output'Access;
when Options.Lower_Hex_Output =>
Handler.Output := Lower_Hex_Output'Access;
when Options.Raw_Output =>
Handler.Output := Raw_Output'Access;
when Options.Upper_Hex_Output =>
Handler.Output := Upper_Hex_Output'Access;
end case;
end Option;
& " 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;
|