/usr/share/ada/adainclude/aws/aws-config-utils.adb is in libaws3.3.2.2-dev 17.2.2017-2.
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) 2006-2012, AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under terms of the GNU General Public License as published by the --
-- Free Software Foundation; either version 3, 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. --
-- --
-- --
-- --
-- --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
------------------------------------------------------------------------------
with Ada.Strings.Fixed;
with AWS.Net.Buffered;
with AWS.Utils;
package body AWS.Config.Utils is
-------------------
-- Parse_Strings --
-------------------
procedure Parse_Strings (Vector : in out SV.Vector; Line : String) is
use Ada.Strings;
First : Positive := Line'First;
Last : Natural;
procedure Append (Item : String);
------------
-- Append --
------------
procedure Append (Item : String) is
begin
SV.Append
(Vector, Fixed.Trim (Item, AWS.Utils.Spaces, AWS.Utils.Spaces));
end Append;
begin
SV.Clear (Vector);
if Line = "" then
return;
end if;
loop
Last := Fixed.Index (Line (First .. Line'Last), ",");
if Last = 0 then
Append (Line (First .. Line'Last));
exit;
end if;
Append (Line (First .. Last - 1));
First := Last + 1;
end loop;
end Parse_Strings;
-------------------
-- Set_Parameter --
-------------------
procedure Set_Parameter
(Param_Set : in out Parameter_Set;
Name : Parameter_Name;
Value : String;
Error_Context : String)
is
procedure Set_Parameter (Param : in out Values);
-- Set parameter depending on the type (Param.Kind)
procedure Error (Message : String);
-- Raises Constraint_Error with associated message and Error_Context
-- string.
function "+" (S : String)
return Unbounded_String
renames To_Unbounded_String;
-----------
-- Error --
-----------
procedure Error (Message : String) is
function Error_Message return String;
-------------------
-- Error_Message --
-------------------
function Error_Message return String is
begin
if Error_Context = "" then
return Message;
else
return Error_Context & ' ' & Message;
end if;
end Error_Message;
begin
raise Constraint_Error with Error_Message & '.';
end Error;
Expected_Type : Unbounded_String;
-------------------
-- Set_Parameter --
-------------------
procedure Set_Parameter (Param : in out Values) is
begin
case Param.Kind is
when Str =>
Expected_Type := +"string";
Param.Str_Value := +Value;
when Str_Vect =>
Expected_Type := +"string list";
Parse_Strings (Param.Strs_Value, Value);
when Dir =>
Expected_Type := +"string";
if Value (Value'Last) = '/'
or else Value (Value'Last) = '\'
then
Param.Dir_Value := +Value;
else
Param.Dir_Value := +(Value & '/');
end if;
when Pos =>
Expected_Type := +"positive";
Param.Pos_Value := Positive'Value (Value);
if Name = Input_Line_Size_Limit then
Net.Buffered.Set_Input_Limit (Param.Pos_Value);
end if;
when Nat =>
Expected_Type := +"natural";
Param.Nat_Value := Natural'Value (Value);
when Dur =>
Expected_Type := +"duration";
Param.Dur_Value := Duration'Value (Value);
when Bool =>
Expected_Type := +"boolean";
Param.Bool_Value := Boolean'Value (Value);
when Regexp =>
Expected_Type := +"regexp (string)";
Param.Pattern := GNAT.Regexp.Compile (Value);
Param.Is_Set := True;
end case;
exception
when others =>
Error
("wrong value for " & Parameter_Name'Image (Name)
& " " & To_String (Expected_Type) & " expected, but '"
& Value & "' found");
end Set_Parameter;
begin
if Name not in Param_Set'Range then
declare
Not_Supported_Msg : constant String :=
" option '" & Parameter_Name'Image (Name)
& "' not supported for this configuration"
& " context";
begin
if Name in Process_Parameter_Name'Range then
Error ("Per process" & Not_Supported_Msg);
else
Error ("Per server" & Not_Supported_Msg);
end if;
end;
return;
else
Set_Parameter (Param_Set (Name));
end if;
end Set_Parameter;
-----------
-- Value --
-----------
function Value
(Item : String; Error_Context : String) return Parameter_Name is
begin
return Parameter_Name'Value (Item);
exception
when Constraint_Error =>
raise Constraint_Error
with Error_Context & "unrecognized option " & Item;
end Value;
end AWS.Config.Utils;
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