77 lines
3.9 KiB
Ada
77 lines
3.9 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT COMPILER COMPONENTS --
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-- --
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-- GNAT.SOCKETS.THIN.HOST_ERROR_MESSAGES --
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-- --
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-- B o d y --
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-- --
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-- Copyright (C) 2007-2008, AdaCore --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 2, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNAT; see file COPYING. If not, write --
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-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
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-- Boston, MA 02110-1301, USA. --
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-- --
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-- As a special exception, if other files instantiate generics from this --
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-- unit, or you link this unit with other files to produce an executable, --
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-- this unit does not by itself cause the resulting executable to be --
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-- covered by the GNU General Public License. This exception does not --
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-- however invalidate any other reasons why the executable file might be --
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-- covered by the GNU Public License. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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-- This is the default implementation of this unit, providing explicit
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-- literal messages (we do not use hstrerror from the standard C library,
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-- as this function is obsolete).
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separate (GNAT.Sockets.Thin)
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package body Host_Error_Messages is
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package Messages is
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HOST_NOT_FOUND : aliased char_array := "Host not found" & nul;
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TRY_AGAIN : aliased char_array := "Try again" & nul;
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NO_RECOVERY : aliased char_array := "No recovery" & nul;
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NO_DATA : aliased char_array := "No address" & nul;
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Unknown_Error : aliased char_array := "Unknown error" & nul;
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end Messages;
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function Host_Error_Message (H_Errno : Integer) return C.Strings.chars_ptr
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is
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use Interfaces.C.Strings;
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function TCP
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(P : char_array_access; Nul_Check : Boolean := False) return chars_ptr
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renames To_Chars_Ptr;
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begin
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case H_Errno is
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when SOSC.HOST_NOT_FOUND =>
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return TCP (Messages.HOST_NOT_FOUND'Access);
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when SOSC.TRY_AGAIN =>
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return TCP (Messages.TRY_AGAIN'Access);
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when SOSC.NO_RECOVERY =>
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return TCP (Messages.NO_RECOVERY'Access);
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when SOSC.NO_DATA =>
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return TCP (Messages.NO_DATA'Access);
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when others =>
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return TCP (Messages.Unknown_Error'Access);
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end case;
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end Host_Error_Message;
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end Host_Error_Messages;
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