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-------------------------------------------------------------------------------
--- --
--- GNAT COMPILER COMPONENTS --
--- --
--- GNAT.SOCKETS.THIN.HOST_ERROR_MESSAGES --
--- --
--- B o d y --
--- --
--- Copyright (C) 2007-2008, AdaCore --
--- --
--- GNAT is free software; you can redistribute it and/or modify it under --
--- terms of the GNU General Public License as published by the Free Soft- --
--- ware Foundation; either version 2, or (at your option) any later ver- --
--- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
--- OUT 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 distributed with GNAT; see file COPYING. If not, write --
--- to the Free Software Foundation, 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. --
--- --
--- GNAT was originally developed by the GNAT team at New York University. --
--- Extensive contributions were provided by Ada Core Technologies Inc. --
--- --
-------------------------------------------------------------------------------
-
--- This is the default implementation of this unit, providing explicit
--- literal messages (we do not use hstrerror from the standard C library,
--- as this function is obsolete).
-
-separate (GNAT.Sockets.Thin)
-package body Host_Error_Messages is
-
- package Messages is
- HOST_NOT_FOUND : aliased char_array := "Host not found" & nul;
- TRY_AGAIN : aliased char_array := "Try again" & nul;
- NO_RECOVERY : aliased char_array := "No recovery" & nul;
- NO_DATA : aliased char_array := "No address" & nul;
- Unknown_Error : aliased char_array := "Unknown error" & nul;
- end Messages;
-
- function Host_Error_Message (H_Errno : Integer) return C.Strings.chars_ptr
- is
- use Interfaces.C.Strings;
- function TCP
- (P : char_array_access; Nul_Check : Boolean := False) return chars_ptr
- renames To_Chars_Ptr;
-
- begin
- case H_Errno is
- when SOSC.HOST_NOT_FOUND =>
- return TCP (Messages.HOST_NOT_FOUND'Access);
-
- when SOSC.TRY_AGAIN =>
- return TCP (Messages.TRY_AGAIN'Access);
-
- when SOSC.NO_RECOVERY =>
- return TCP (Messages.NO_RECOVERY'Access);
-
- when SOSC.NO_DATA =>
- return TCP (Messages.NO_DATA'Access);
-
- when others =>
- return TCP (Messages.Unknown_Error'Access);
-
- end case;
- end Host_Error_Message;
-
-end Host_Error_Messages;