X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=lib%2Fdirfd.c;h=81993c502c1f89c71304d7390c9df8240a86d782;hb=10a856eb3aa7ffe196fa20c9901d356f2109c40f;hp=3458e99b203bc9764b745e71dd3e3dc9a9e845e5;hpb=2cf6b078ffb5955943be20eec0a1d6742b118c5e;p=gnulib.git

diff --git a/lib/dirfd.c b/lib/dirfd.c
index 3458e99b2..81993c502 100644
--- a/lib/dirfd.c
+++ b/lib/dirfd.c
@@ -1,6 +1,6 @@
 /* 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
@@ -20,9 +20,13 @@
 #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;
 }