File : agpl-geoip-embedded.adb


------------------------------------------------------------------------------

--                         ADAGIO - ADALID - AENEA.                         --

--                                                                          --

--                            Copyright (C) 2003                            --

--                                 A. Mosteo.                               --

--                                                                          --

--  Authors: A. Mosteo. (adagio@mosteo.com)                                 --

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--  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   --

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--  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.                                --

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--  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.          --

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--  networks Adagio connects with. All data collected with Adagio or a tool --

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------------------------------------------------------------------------------

--  $Id: agpl-geoip-embedded.adb,v 1.1 2004/01/26 20:47:37 Jano Exp $


--  Uses the CSV database from www.maxmind.com


--  Allows initialization from an embedded database, if present.


with Aws.Resources;

package body Agpl.Geoip.Embedded is

   ------------------------------------------------------------------------

   -- Init                                                               --

   ------------------------------------------------------------------------

   -- Call it before any other subroutine.

   -- Database is the name of the embedded resource (using Awsres).

   procedure Init (Database : in String; Success : out Boolean) is
      use Aws.Resources;
      F    : File_type;
      Line : String (1 .. 255);
      Last : Natural;
   begin
      Success := false; -- By now


      if not Aws.Resources.Is_regular_file (Database) then
         Success := false;
         return;  --  <-- Early exit, file not found.

      end if;

      Open (F, Database);
      while not End_of_file (F) loop
         Get_line (F, Line, Last);
         Parse_line (Line (Line'First .. Last));
      end loop;
      Close (F);

      Success := true;
   exception
      when others =>
         Close (F);
         raise;
   end Init;

end Agpl.Geoip.Embedded;