| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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| -- as this function is obsolete).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; |