/usr/share/ada/adainclude/aws/aws-utils-streams.adb is in libaws2.10.2-dev 2.10.2-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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-- Ada Web Server --
-- --
-- Copyright (C) 2009, AdaCore --
-- --
-- This library 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 library 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 library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
------------------------------------------------------------------------------
with AWS.Translator;
package body AWS.Utils.Streams is
----------
-- Open --
----------
procedure Open
(Stream : in out Strings'Class; Str : String) is
begin
Stream.Str := To_Unbounded_String (Str);
Stream.Read_Index := 1;
end Open;
----------
-- Read --
----------
overriding procedure Read
(Stream : in out Strings;
Item : out Stream_Element_Array;
Last : out Stream_Element_Offset)
is
Str : constant String := Slice
(Stream.Str, Stream.Read_Index, Stream.Read_Index + Item'Length - 1);
J : Stream_Element_Offset := Item'First;
begin
for S in Str'Range loop
Item (J) := Stream_Element (Character'Pos (Str (S)));
J := J + 1;
end loop;
Last := Item'First + Str'Length - 1;
Stream.Read_Index := Stream.Read_Index + Item'Length;
end Read;
overriding procedure Read
(Stream : in out SHA1;
Item : out Stream_Element_Array;
Last : out Stream_Element_Offset) is
begin
Item := Translator.To_Stream_Element_Array (GNAT.SHA1.Digest (Stream.C));
Last := Item'Last;
end Read;
-----------
-- Value --
-----------
function Value (Stream : access Strings'Class) return String is
begin
return To_String (Stream.Str);
end Value;
function Value
(Stream : access SHA1'Class) return GNAT.SHA1.Message_Digest
is
Result : GNAT.SHA1.Message_Digest;
begin
GNAT.SHA1.Message_Digest'Read (Stream, Result);
return Result;
end Value;
-----------
-- Write --
-----------
overriding procedure Write
(Stream : in out Strings; Item : Stream_Element_Array)
is
Str : String (1 .. Integer (Item'Length));
S : Integer := Str'First;
begin
for J in Item'Range loop
Str (S) := Character'Val (Item (J));
S := S + 1;
end loop;
Append (Stream.Str, Str);
end Write;
overriding procedure Write
(Stream : in out SHA1; Item : Stream_Element_Array) is
begin
GNAT.SHA1.Update (Stream.C, Item);
end Write;
end AWS.Utils.Streams;
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