/usr/share/doc/libdbusada0.2-dev/examples/nm-dhcp-action/nm_dhcp_client_action.adb is in libdbusada0.2-dev 0.2-2.
This file is owned by root:root, with mode 0o644.
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-- D_Bus/Ada - An Ada binding to D-Bus
--
-- Copyright (C) 2011 Reto Buerki <reet@codelabs.ch>
--
-- 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 your option) any later version.
--
-- 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.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
-- USA.
--
-- As a special exception, if other files instantiate generics from this
-- unit, or you link this unit with other files to produce an
-- executable this unit does not by itself cause the resulting
-- executable to be covered by the GNU General Public License. This
-- exception does not however invalidate any other reasons why the
-- executable file might be covered by the GNU Public License.
--
with Ada.Strings.Unbounded;
with Ada.Environment_Variables;
with Ada.Containers.Ordered_Maps;
with D_Bus.Connection;
with D_Bus.Arguments.Basic;
with D_Bus.Arguments.Containers;
procedure NM_DHCP_Client_Action
is
use Ada.Strings.Unbounded;
use D_Bus;
use type D_Bus.Arguments.Containers.Array_Type;
Ignored_Args : constant array (1 .. 5) of Unbounded_String
:= (To_Unbounded_String ("PATH"),
To_Unbounded_String ("SHLVL"),
To_Unbounded_String ("_"),
To_Unbounded_String ("PWD"),
To_Unbounded_String ("dhc_dbus"));
-- Env args to ignore.
package Name_Value_Map_Package is new Ada.Containers.Ordered_Maps
(Key_Type => Unbounded_String,
Element_Type => Unbounded_String);
package NVMP renames Name_Value_Map_Package;
DHCP_Args : NVMP.Map;
Conn : constant Connection.Connection_Type
:= Connection.Connect (Bus => Bus_System);
Args : Arguments.Containers.Array_Type;
-------------------------------------------------------------------------
procedure Append_Arg (Position : NVMP.Cursor);
-- Append dhcp env arg as D-Bus dict entry to array.
procedure Append_Arg (Position : NVMP.Cursor)
is
use D_Bus.Arguments.Containers;
use D_Bus.Arguments.Basic;
Value : constant String := To_String (NVMP.Element (Position));
Dict : Dict_Entry_Type;
Variant : Variant_Type;
Byte_Array : Array_Type;
begin
for B in Value'Range loop
Byte_Array.Append (New_Item => +Byte'(Character'Pos (Value (B))));
end loop;
Variant := Create (Source => Byte_Array);
Dict := Create (Key => +To_String (NVMP.Key (Position)),
Value => Variant);
Args.Append (New_Item => Dict);
end Append_Arg;
-------------------------------------------------------------------------
procedure Filter_Arg (Name, Value : String);
-- Check if given env arg should be ignored.
procedure Filter_Arg (Name, Value : String)
is
begin
if Value'Length = 0 then
return;
end if;
for A in Ignored_Args'Range loop
if Name = To_String (Ignored_Args (A)) then
return;
end if;
end loop;
DHCP_Args.Insert (Key => To_Unbounded_String (Name),
New_Item => To_Unbounded_String (Value));
end Filter_Arg;
begin
Ada.Environment_Variables.Iterate (Process => Filter_Arg'Access);
DHCP_Args.Iterate (Process => Append_Arg'Access);
Connection.Request_Name
(Connection => Conn,
Name => "org.freedesktop.nm_dhcp_client");
Connection.Send_Signal (Connection => Conn,
Object_Name => "/",
Iface => "org.freedesktop.nm_dhcp_client",
Name => "Event",
Args => +Args);
end NM_DHCP_Client_Action;
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