File : agpl-ip.adb


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

--                         ADAGIO - ADALID - AENEA.                         --

--                                                                          --

--                            Copyright (C) 2003                            --

--                                 A. Mosteo.                               --

--                                                                          --

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

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--  If you have any questions in regard to this software, please address    --

--  them to the above email.                                                --

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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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--  whose output would be used to harass or prosecute other users of the    --

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

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--  $Id: agpl-ip.adb,v 1.1 2004/01/25 22:55:07 Jano Exp $


-- Utilities for IP conversions


with Agpl.Strings.Fields;

package body Agpl.Ip is

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

   -- Strip_port                                                         --

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

   -- Removes the port portion, if present

   function Strip_port (Address : in Any_address) return Any_address is
      use Agpl.Strings.Fields;
   begin
      return Select_field (Address, 1, ':');
   end Strip_port;

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

   -- To_number                                                          --

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

   -- Returns a dotted_address as long long integer

   -- w.x.y.z = w * 256**3 + x * 256**2 + y * 256**1 + z

   function To_number (Address : in Dotted_address) return Long_long_integer 
   is
      Result : Long_long_integer := 0;
      use Agpl.Strings.Fields;
   begin
      for N in 1 .. 4 loop
         Result := Result + Long_long_integer'Value (
            Select_field (Address, N, '.')) * 256**(4 - N);
      end loop;

      return Result;
   end To_number;

end Agpl.Ip;