* sysdeps/mach/hurd/opendir.c (_hurd_fd_opendir): New function, broken

	out of ...
	(__opendir): ... here.  Call it.
	* sysdeps/mach/hurd/fdopendir.c: New file.

1 files changed, 55 insertions, 0 deletions

diff --git a/sysdeps/mach/hurd/fdopendir.c b/sysdeps/mach/hurd/fdopendir.c
new file mode 100644
index 0000000000..d08e478c61
--- /dev/null
+++ b/sysdeps/mach/hurd/fdopendir.c
@@ -0,0 +1,55 @@
+/* Open a directory stream from a file descriptor.  Hurd version.
+   Copyright (C) 2005 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
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <dirent.h>
+#include <errno.h>
+#include <hurd.h>
+#include <hurd/fd.h>
+
+DIR *_hurd_fd_opendir (struct hurd_fd *d); /* opendir.c */
+
+/* Open a directory stream on FD.  */
+DIR *
+fdopendir (int fd)
+{
+  struct hurd_fd *d = _hurd_fd_get (d);
+
+  if (d == NULL)
+    {
+      errno = EBADF;
+      return NULL;
+    }
+
+  /* Ensure that it's a directory.  */
+  error_t err = HURD_FD_PORT_USE
+    (d, ({
+	file_t dir = __file_name_lookup_under (port, "/", O_NOTRANS, 0);
+	if (dir != MACH_PORT_NULL)
+	  __mach_port_deallocate (__mach_task_self (), dir);
+	dir != MACH_PORT_NULL ? 0 : errno;
+      }));
+
+  if (err)
+    {
+      errno = err;
+      return NULL;
+    }
+
+  return _hurd_fd_opendir (d);
+}