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      1 /* Error handling for Windows
      2 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
      3 2006 Free Software Foundation, Inc.
      4 This file is part of GNU Make.
      5 
      6 GNU Make is free software; you can redistribute it and/or modify it under the
      7 terms of the GNU General Public License as published by the Free Software
      8 Foundation; either version 2, or (at your option) any later version.
      9 
     10 GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
     11 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
     12 A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
     13 
     14 You should have received a copy of the GNU General Public License along with
     15 GNU Make; see the file COPYING.  If not, write to the Free Software
     16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.  */
     17 
     18 #include <windows.h>
     19 #include "w32err.h"
     20 
     21 /*
     22  * Description: the windows32 version of perror()
     23  *
     24  * Returns:  a pointer to a static error
     25  *
     26  * Notes/Dependencies:  I got this from
     27  *      comp.os.ms-windows.programmer.win32
     28  */
     29 char *
     30 map_windows32_error_to_string (DWORD ercode) {
     31 /* __declspec (thread) necessary if you will use multiple threads on MSVC */
     32 #ifdef _MSC_VER
     33 __declspec (thread) static char szMessageBuffer[128];
     34 #else
     35 static char szMessageBuffer[128];
     36 #endif
     37 	/* Fill message buffer with a default message in
     38 	 * case FormatMessage fails
     39 	 */
     40     wsprintf (szMessageBuffer, "Error %ld\n", ercode);
     41 
     42 	/*
     43 	 *  Special code for winsock error handling.
     44 	 */
     45 	if (ercode > WSABASEERR) {
     46 		HMODULE hModule = GetModuleHandle("wsock32");
     47 		if (hModule != NULL) {
     48 			FormatMessage(FORMAT_MESSAGE_FROM_HMODULE,
     49 				hModule,
     50 				ercode,
     51 				LANG_NEUTRAL,
     52 				szMessageBuffer,
     53 				sizeof(szMessageBuffer),
     54 				NULL);
     55 			FreeLibrary(hModule);
     56 		}
     57 	} else {
     58 		/*
     59 		 *  Default system message handling
     60 		 */
     61     	FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,
     62                   NULL,
     63                   ercode,
     64                   LANG_NEUTRAL,
     65                   szMessageBuffer,
     66                   sizeof(szMessageBuffer),
     67                   NULL);
     68 	}
     69     return szMessageBuffer;
     70 }
     71 
     72