1 files changed, 41 insertions, 0 deletions
diff --git a/otherlibs/win32unix/errmsg.c b/otherlibs/win32unix/errmsg.c
new file mode 100644
index 000000000..7a6cf654e
--- /dev/null
+++ b/otherlibs/win32unix/errmsg.c
@@ -0,0 +1,41 @@
+/***********************************************************************/
+/*                                                                     */
+/*                           Objective Caml                            */
+/*                                                                     */
+/*            Xavier Leroy, projet Cristal, INRIA Rocquencourt         */
+/*                                                                     */
+/*  Copyright 2001 Institut National de Recherche en Informatique et   */
+/*  en Automatique.  All rights reserved.  This file is distributed    */
+/*  under the terms of the GNU Library General Public License.         */
+/*                                                                     */
+/***********************************************************************/
+
+/* $Id$ */
+
+#include <errno.h>
+#include <string.h>
+#include <mlvalues.h>
+#include <alloc.h>
+#include "unixsupport.h"
+
+extern int error_table[];
+
+CAMLprim value unix_error_message(value err)
+{
+  int errnum;
+  char buffer[512];
+  
+  errnum = Is_block(err) ? Int_val(Field(err, 0)) : error_table[Int_val(err)];
+  if (errnum > 0)
+    return copy_string(strerror(errnum));
+  if (FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
+                    NULL,
+                    -errnum,
+                    0,
+                    buffer,
+                    sizeof(buffer),
+                    NULL))
+    return copy_string(buffer);
+  return copy_string("unknown error");
+}
+