/usr/share/ada/adainclude/anet/anet-sockets-unix.adb is in libanet0.3.1-dev 0.3.1-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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-- Copyright (C) 2012-2013 secunet Security Networks AG
-- Copyright (C) 2012-2014 Reto Buerki <reet@codelabs.ch>
-- Copyright (C) 2012-2014 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.
--
with Anet.OS;
package body Anet.Sockets.Unix is
package C renames Interfaces.C;
-------------------------------------------------------------------------
procedure Accept_Connection
(Socket : TCP_Socket_Type;
New_Socket : out TCP_Socket_Type)
is
Res : C.int;
Sock : Thin.Unix.Sockaddr_Un_Type;
Len : aliased C.int := Sock'Size / 8;
begin
New_Socket.Sock_FD := -1;
Res := Thin.C_Accept (S => Socket.Sock_FD,
Name => Sock'Address,
Namelen => Len'Access);
case Check_Accept (Result => Res)
is
when Accept_Op_Aborted => return;
when Accept_Op_Error =>
raise Socket_Error with "Unable to accept connection on UNIX/TCP "
& "socket - " & Get_Errno_String;
when Accept_Op_Ok =>
New_Socket.Sock_FD := Res;
New_Socket.Path := Socket.Path;
end case;
end Accept_Connection;
-------------------------------------------------------------------------
procedure Bind
(Socket : in out Unix_Socket_Type;
Path : Path_Type)
is
Res : C.int;
C_Path : constant C.char_array := C.To_C (String (Path));
Value : Thin.Unix.Sockaddr_Un_Type;
begin
OS.Delete_File (Filename => String (Path));
Value.Pathname (1 .. C_Path'Length) := C_Path;
Res := Thin.C_Bind (S => Socket.Sock_FD,
Name => Value'Address,
Namelen => Value'Size / 8);
if Res = C_Failure then
raise Socket_Error with "Unable to bind unix socket to path "
& String (Path) & " - " & Get_Errno_String;
end if;
Socket.Path := Ada.Strings.Unbounded.To_Unbounded_String
(String (Path));
end Bind;
-------------------------------------------------------------------------
procedure Close (Socket : in out Unix_Socket_Type)
is
begin
if Socket.Sock_FD /= -1 then
OS.Delete_File (Filename => Ada.Strings.Unbounded.To_String
(Socket.Path));
Socket_Type (Socket).Close;
end if;
end Close;
-------------------------------------------------------------------------
procedure Connect
(Socket : in out Unix_Socket_Type;
Path : Path_Type)
is
Res : C.int;
C_Path : constant C.char_array := C.To_C (String (Path));
Value : Thin.Unix.Sockaddr_Un_Type;
begin
Value.Pathname (1 .. C_Path'Length) := C_Path;
Res := Thin.C_Connect (S => Socket.Sock_FD,
Name => Value'Address,
Namelen => Value'Size / 8);
if Res = C_Failure then
raise Socket_Error with "Unable to connect unix socket to path "
& String (Path) & " - " & Get_Errno_String;
end if;
end Connect;
-------------------------------------------------------------------------
procedure Init (Socket : in out UDP_Socket_Type)
is
begin
Init (Socket => Socket,
Family => Socket_Families.Family_Unix,
Mode => Datagram_Socket);
end Init;
-------------------------------------------------------------------------
procedure Init (Socket : in out TCP_Socket_Type)
is
begin
Init (Socket => Socket,
Family => Socket_Families.Family_Unix,
Mode => Stream_Socket);
end Init;
-------------------------------------------------------------------------
function Is_Valid (Path : String) return Boolean
is
begin
return Path'Length in Path_Range;
end Is_Valid;
-------------------------------------------------------------------------
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)
is
Path : constant String := Ada.Strings.Unbounded.To_String (Socket.Path);
begin
Socket_Type (Socket).Receive (Item => Item,
Last => Last);
Src (Src'First .. Path'Length) := Path_Type (Path);
end Receive;
end Anet.Sockets.Unix;
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