From 2267758153d1f4d4c9a20c9cf7514ddff8eded55 Mon Sep 17 00:00:00 2001
From: Bert Belder <bertbelder@gmail.com>
Date: Wed, 4 May 2011 00:26:30 +0200
Subject: [PATCH] oio_strerror for windows

---
 oio-win.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/oio-win.c b/oio-win.c
index c26071f1..e9f1f54a 100644
--- a/oio-win.c
+++ b/oio-win.c
@@ -161,6 +161,8 @@ static HANDLE oio_iocp_;
 static const oio_err oio_ok_ = { OIO_OK, ERROR_SUCCESS };
 static oio_err oio_last_error_ = { OIO_OK, ERROR_SUCCESS };
 
+/* Error message string */
+static char* oio_err_str_ = NULL;
 
 /* Global alloc function */
 oio_alloc_cb oio_alloc_ = NULL;
@@ -217,6 +219,23 @@ oio_err oio_last_error() {
 }
 
 
+char* oio_strerror(oio_err err) {
+  if (oio_err_str_ != NULL) {
+    LocalFree((void*) oio_err_str_);
+  }
+
+  FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
+      FORMAT_MESSAGE_IGNORE_INSERTS, NULL, err.sys_errno_,
+      MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPSTR)&oio_err_str_, 0, NULL);
+
+  if (oio_err_str_) {
+    return oio_err_str_;
+  } else {
+    return "Unknown error";
+  }
+}
+
+
 static oio_err_code oio_translate_sys_error(int sys_errno) {
   switch (sys_errno) {
     case ERROR_SUCCESS:                     return OIO_OK;