/* dirfd.c -- return the file descriptor associated with an open DIR*
- Copyright (C) 2001, 2006, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2006, 2008-2009 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <config.h>
#include <dirent.h>
+#include <errno.h>
int
dirfd (DIR const *dir_p)
{
- return DIR_TO_FD (dir_p);
+ int fd = DIR_TO_FD (dir_p);
+ if (fd == -1)
+ errno = ENOTSUP;
+ return fd;
}