fix php_win_err (wasn't threadsafe)

win32/winutil.c

@@ -1,19 +1,31 @@
-#include <php.h>
+/*
+   +----------------------------------------------------------------------+
+   | PHP version 4.0                                                      |
+   +----------------------------------------------------------------------+
+   | Copyright (c) 1997-2001 The PHP Group                                |
+   +----------------------------------------------------------------------+
+   | This source file is subject to version 2.02 of the PHP license,      |
+   | that is bundled with this package in the file LICENSE, and is        |
+   | available at through the world-wide-web at                           |
+   | http://www.php.net/license/2_02.txt.                                 |
+   | If you did not receive a copy of the PHP license and are unable to   |
+   | obtain it through the world-wide-web, please send a note to          |
+   | license@php.net so we can mail you a copy immediately.               |
+   +----------------------------------------------------------------------+
+   | Author:                                                              |
+   +----------------------------------------------------------------------+
+ */
 
-#ifndef THREAD_SAFE
-static char Win_Error_msg[256];
-#endif
+#include <php.h>
 
-PHPAPI char *php_win_err(void)
+PHPAPI char *php_win_err(int error)
 {
+	char *buf;
+
 	FormatMessage(
-					 FORMAT_MESSAGE_FROM_SYSTEM,
-					 NULL,
-					 GetLastError(),
-					 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),	/* Default language */
-					  (LPTSTR) Win_Error_msg,
-					 256,
-					 NULL);
+		FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |	FORMAT_MESSAGE_IGNORE_INSERTS,
+		NULL, error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),	(LPTSTR)&buf, 0, NULL
+	);
 
-	return Win_Error_msg;
+	return (buf ? (char *) buf : "");
 }

win32/winutil.h

@@ -1 +1,21 @@
-PHPAPI extern char *php_win_err(void);
+/*
+   +----------------------------------------------------------------------+
+   | PHP version 4.0                                                      |
+   +----------------------------------------------------------------------+
+   | Copyright (c) 1997-2001 The PHP Group                                |
+   +----------------------------------------------------------------------+
+   | This source file is subject to version 2.02 of the PHP license,      |
+   | that is bundled with this package in the file LICENSE, and is        |
+   | available at through the world-wide-web at                           |
+   | http://www.php.net/license/2_02.txt.                                 |
+   | If you did not receive a copy of the PHP license and are unable to   |
+   | obtain it through the world-wide-web, please send a note to          |
+   | license@php.net so we can mail you a copy immediately.               |
+   +----------------------------------------------------------------------+
+   | Author:                                                              |
+   +----------------------------------------------------------------------+
+ */
+
+PHPAPI char *php_win_err(int error);
+
+#define php_win_err()	php_win_err(GetLastError())