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--
-- Copyright (C) 2012 secunet Security Networks AG
-- Copyright (C) 2012-2016 Reto Buerki <reet@codelabs.ch>
-- Copyright (C) 2012-2016 Adrian-Ken Rueegsegger <ken@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. See <http://www.fsf.org/copyleft/gpl.txt>.
--
-- 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.
--
-- 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.
--
private with Ada.Strings.Unbounded;
with Anet.Sockets.Thin.Unix;
package Anet.Sockets.Unix is
subtype Path_Range is Positive range 1 .. Thin.Unix.UNIX_PATH_MAX - 1;
-- Range of unix paths.
type Path_Type is array (Path_Range range <>) of Character;
-- Unix path type.
subtype Full_Path_Type is Path_Type (Path_Range);
-- Unix path with max. possible size.
function Is_Valid (Path : String) return Boolean;
-- Returns true if the given path is a valid unix path.
function To_String (Path : Full_Path_Type) return String;
-- Returned trimmed string representation of given full path.
type Unix_Socket_Type is abstract new Socket_Type with private;
-- UNIX domain socket.
overriding
procedure Close (Socket : in out Unix_Socket_Type);
-- Close given UNIX domain socket.
procedure Bind
(Socket : in out Unix_Socket_Type;
Path : Path_Type);
-- Bind given UNIX domain socket to path.
procedure Connect
(Socket : in out Unix_Socket_Type;
Path : Path_Type);
-- Connect given UNIX domain socket to path.
type UDP_Socket_Type is new Unix_Socket_Type
and Dgram_Socket_Type with private;
-- UNIX domain socket in datagram mode.
procedure Init (Socket : in out UDP_Socket_Type);
-- Initialize given UNIX/UDP socket.
procedure Receive
(Socket : UDP_Socket_Type;
Src : out Full_Path_Type;
Item : out Ada.Streams.Stream_Element_Array;
Last : out Ada.Streams.Stream_Element_Offset);
-- Receive data from given Unix/UDP socket. This procedure blocks until
-- data has been received. Last is the index value such that Item (Last) is
-- the last character assigned. An exception is raised if a socket error
-- occurs. The source argument is set to the socket path from which the
-- data was received.
type TCP_Socket_Type is new Unix_Socket_Type
and Stream_Socket_Type with private;
-- UNIX domain socket in stream mode.
procedure Init (Socket : in out TCP_Socket_Type);
-- Initialize given UNIX/TCP socket.
overriding
procedure Accept_Connection
(Socket : TCP_Socket_Type;
New_Socket : out TCP_Socket_Type);
-- Accept first connection request from listening socket and return new
-- connected socket.
private
type Unix_Socket_Type is abstract new Socket_Type with record
Path : Ada.Strings.Unbounded.Unbounded_String;
Delete_On_Close : Boolean := True;
end record;
type UDP_Socket_Type is new Unix_Socket_Type
and Dgram_Socket_Type with null record;
type TCP_Socket_Type is new Unix_Socket_Type
and Stream_Socket_Type with null record;
end Anet.Sockets.Unix;
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