Hurd: Fix mkdir / error value

1 files changed, 6 insertions, 3 deletions

diff --git a/sysdeps/mach/hurd/mkdirat.c b/sysdeps/mach/hurd/mkdirat.c
index 9201f7d35e..d6d672ead9 100644
--- a/sysdeps/mach/hurd/mkdirat.c
+++ b/sysdeps/mach/hurd/mkdirat.c
@@ -1,6 +1,5 @@
 /* Create a directory named relative to another open directory.  Hurd version.
-   Copyright (C) 1991,1993,1994,1995,1996,1997,2002,2006
-	Free Software Foundation, Inc.
+   Copyright (C) 1991-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -22,6 +21,7 @@
 #include <sys/stat.h>
 #include <hurd.h>
 #include <hurd/fd.h>
+#include <string.h>
 
 int
 mkdirat (fd, path, mode)
@@ -31,7 +31,10 @@ mkdirat (fd, path, mode)
 {
   error_t err;
   const char *name;
-  file_t parent = __directory_name_split_at (fd, path, (char **) &name);
+  file_t parent;
+  if (!strcmp (path, "/"))
+    return __hurd_fail (EEXIST);
+  parent = __directory_name_split_at (fd, path, (char **) &name);
   if (parent == MACH_PORT_NULL)
     return -1;
   err = __dir_mkdir (parent, name, mode & ~_hurd_umask);