[PATCH 2/6] msvcrt: fix error handling for _wgetcwd

[Bartosz Kosiorek]

From: Bartosz Kosiorek

---
 dlls/msvcrt/dir.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/dlls/msvcrt/dir.c b/dlls/msvcrt/dir.c
index 2c2c25b0e9d..6065e371b46 100644
--- a/dlls/msvcrt/dir.c
+++ b/dlls/msvcrt/dir.c
@@ -821,19 +821,23 @@ wchar_t* CDECL _wgetcwd(wchar_t * buf, int size)
   int dir_len = GetCurrentDirectoryW(MAX_PATH,dir);

if (dir_len < 1)
-    return NULL; /* FIXME: Real return value untested */
+    return NULL;

if (!buf)
   {
       if (size <= dir_len) size = dir_len + 1;
-      if (!(buf = malloc( size * sizeof(WCHAR) ))) return NULL;
+      if (!(buf = malloc( size * sizeof(WCHAR) )))
+      {
+        *_errno() = ENOMEM;
+        return NULL;
+      }
   }
   if (dir_len >= size)
   {
     *_errno() = ERANGE;
     return NULL; /* buf too small */
   }
-  wcscpy(buf,dir);
+  wcscpy_s(buf, size, dir);
   return buf;
 }