2.5-18.1

106 files changed, 6449 insertions, 90 deletions

diff --git a/io/Makefile b/io/Makefile
index 906d1e3301..6623551769 100644
--- a/io/Makefile
+++ b/io/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1992-2002, 2003 Free Software Foundation, Inc.
+# Copyright (C) 1992-2002,2003,2005,2006, 2007 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
@@ -26,38 +26,47 @@ headers := sys/stat.h bits/stat.h sys/statfs.h bits/statfs.h sys/vfs.h \
 	   poll.h sys/poll.h bits/poll.h \
 	   utime.h ftw.h fts.h sys/sendfile.h
 
-routines :=							      \
-	utime							      \
-	mkfifo							      \
-	stat fstat lstat mknod stat64 fstat64 lstat64		      \
-	xstat fxstat lxstat xmknod xstat64 fxstat64 lxstat64	      \
-	statfs fstatfs statfs64 fstatfs64			      \
-	statvfs fstatvfs statvfs64 fstatvfs64			      \
-	umask chmod fchmod lchmod mkdir				      \
-	open open64 close read write lseek lseek64 access euidaccess  \
-	fcntl flock lockf lockf64				      \
-	dup dup2 pipe						      \
-	creat creat64						      \
-	chdir fchdir						      \
-	getcwd getwd getdirname					      \
-	chown fchown lchown					      \
-	ttyname ttyname_r isatty				      \
-	link symlink readlink					      \
-	unlink rmdir						      \
-	ftw ftw64 fts poll					      \
-	posix_fadvise posix_fadvise64				      \
-	posix_fallocate posix_fallocate64			      \
+routines :=								\
+	utime								\
+	mkfifo mkfifoat							\
+	stat fstat lstat stat64 fstat64 lstat64 fstatat fstatat64	\
+	xstat fxstat lxstat xstat64 fxstat64 lxstat64			\
+	mknod mknodat xmknod xmknodat					\
+	fxstatat fxstatat64						\
+	statfs fstatfs statfs64 fstatfs64				\
+	statvfs fstatvfs statvfs64 fstatvfs64				\
+	umask chmod fchmod lchmod fchmodat				\
+	mkdir mkdirat							\
+	open open64 openat openat64 close				\
+	read write lseek lseek64 access euidaccess faccessat		\
+	fcntl flock lockf lockf64					\
+	dup dup2 pipe							\
+	creat creat64							\
+	chdir fchdir							\
+	getcwd getwd getdirname						\
+	chown fchown lchown fchownat					\
+	ttyname ttyname_r isatty					\
+	link linkat symlink symlinkat readlink readlinkat		\
+	unlink unlinkat rmdir						\
+	ftw ftw64 fts poll ppoll					\
+	posix_fadvise posix_fadvise64					\
+	posix_fallocate posix_fallocate64				\
 	sendfile sendfile64
 
 # These routines will be omitted from the libc shared object.
 # Instead the static object files will be included in a special archive
 # linked against when the shared library will be used.
-static-only-routines = stat fstat lstat mknod stat64 fstat64 lstat64
+static-only-routines = stat fstat lstat stat64 fstat64 lstat64	\
+		       fstatat fstatat64 mknod mknodat
 
 others		:= pwd
 test-srcs	:= ftwtest
 tests		:= test-utime test-stat test-stat2 test-lfs tst-getcwd \
-		   tst-fcntl bug-ftw1 bug-ftw2 bug-ftw3 bug-ftw4 tst-statvfs
+		   tst-fcntl bug-ftw1 bug-ftw2 bug-ftw3 bug-ftw4 tst-statvfs \
+		   tst-openat tst-unlinkat tst-fstatat tst-futimesat \
+		   tst-renameat tst-fchownat tst-fchmodat tst-faccessat \
+		   tst-symlinkat tst-linkat tst-readlinkat tst-mkdirat \
+		   tst-mknodat tst-mkfifoat tst-ttyname_r bug-ftw5
 
 distribute	:= ftwtest-sh
 
@@ -65,6 +74,7 @@ include ../Rules
 
 CFLAGS-fcntl.c = -fexceptions -fasynchronous-unwind-tables
 CFLAGS-poll.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-ppoll.c = -fexceptions -fasynchronous-unwind-tables
 CFLAGS-lockf.c = -fexceptions
 CFLAGS-statfs.c = -fexceptions
 CFLAGS-fstatfs.c = -fexceptions
@@ -88,6 +98,9 @@ CFLAGS-mknod.c = -DHAVE_DOT_HIDDEN
 CFLAGS-stat64.c = -DHAVE_DOT_HIDDEN
 CFLAGS-fstat64.c = -DHAVE_DOT_HIDDEN
 CFLAGS-lstat64.c = -DHAVE_DOT_HIDDEN
+CFLAGS-fstatat.c = -DHAVE_DOT_HIDDEN
+CFLAGS-fstatat64.c = -DHAVE_DOT_HIDDEN
+CFLAGS-mknodat.c = -DHAVE_DOT_HIDDEN
 endif
 
 test-stat2-ARGS = Makefile . $(objpfx)test-stat2
diff --git a/io/Versions b/io/Versions
index 5b311ee03b..bc9c9d2685 100644
--- a/io/Versions
+++ b/io/Versions
@@ -97,4 +97,20 @@ libc {
     # n*
     nftw; nftw64;
   }
+  GLIBC_2.4 {
+    eaccess;
+
+    faccessat;
+    fchmodat;
+    fchownat;
+    __fxstatat; __fxstatat64;
+    linkat;
+    mkdirat; mkfifoat; __xmknodat;
+    openat; openat64;
+    readlinkat;
+    symlinkat;
+    unlinkat;
+
+    ppoll;
+  }
 }
diff --git a/io/access.c b/io/access.c
new file mode 100644
index 0000000000..c266e945a9
--- /dev/null
+++ b/io/access.c
@@ -0,0 +1,41 @@
+/* Copyright (C) 1991, 1995, 1996, 1997 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 <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+
+/* Test for access to FILE.  */
+int
+__access (file, type)
+     const char *file;
+     int type;
+{
+  if (file == NULL || (type & ~(R_OK|W_OK|X_OK|F_OK)) != 0)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (access)
+
+weak_alias (__access, access)
+#include <stub-tag.h>
diff --git a/io/bug-ftw5.c b/io/bug-ftw5.c
new file mode 100644
index 0000000000..c1cd81d30e
--- /dev/null
+++ b/io/bug-ftw5.c
@@ -0,0 +1,25 @@
+#include <errno.h>
+#include <ftw.h>
+#include <stdio.h>
+
+static int
+fn (const char *file, const struct stat *sb, int flag, struct FTW *s)
+{
+  puts (file);
+  return FTW_STOP;
+}
+
+static int
+do_test (void)
+{
+  if (nftw ("/", fn, 0, FTW_CHDIR | FTW_ACTIONRETVAL) < 0)
+    {
+      printf ("nftw / FTW_CHDIR: %m\n");
+      return 1;
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/io/chdir.c b/io/chdir.c
new file mode 100644
index 0000000000..afaeef8787
--- /dev/null
+++ b/io/chdir.c
@@ -0,0 +1,40 @@
+/* Copyright (C) 1991, 1995, 1996, 1997 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 <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+
+/* Change the current directory to PATH.  */
+int
+__chdir (path)
+     const char *path;
+{
+  if (path == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (chdir)
+
+weak_alias (__chdir, chdir)
+#include <stub-tag.h>
diff --git a/io/chmod.c b/io/chmod.c
new file mode 100644
index 0000000000..38b05127c9
--- /dev/null
+++ b/io/chmod.c
@@ -0,0 +1,42 @@
+/* Copyright (C) 1991, 1995, 1996, 1997 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 <errno.h>
+#include <stddef.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+/* Change the protections of FILE to MODE.  */
+int
+__chmod (file, mode)
+     const char *file;
+     mode_t mode;
+{
+  if (file == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (chmod)
+
+weak_alias (__chmod, chmod)
+#include <stub-tag.h>
diff --git a/io/chown.c b/io/chown.c
new file mode 100644
index 0000000000..0e368f2ac4
--- /dev/null
+++ b/io/chown.c
@@ -0,0 +1,45 @@
+/* Copyright (C) 1991, 1992, 1995, 1996, 1997, 2002
+   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 <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+/* Change the owner and group of FILE.  */
+int
+__chown (file, owner, group)
+     const char *file;
+     uid_t owner;
+     gid_t group;
+{
+  if (file == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+libc_hidden_def (__chown)
+stub_warning (chown)
+
+weak_alias (__chown, chown)
+#include <stub-tag.h>
diff --git a/io/close.c b/io/close.c
new file mode 100644
index 0000000000..0856ba851b
--- /dev/null
+++ b/io/close.c
@@ -0,0 +1,40 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 2002 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 <errno.h>
+#include <unistd.h>
+
+/* Close the file descriptor FD.  */
+int
+__close (fd)
+     int fd;
+{
+  if (fd < 0)
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+libc_hidden_def (__close)
+stub_warning (close)
+
+weak_alias (__close, close)
+#include <stub-tag.h>
diff --git a/io/creat.c b/io/creat.c
new file mode 100644
index 0000000000..462882415c
--- /dev/null
+++ b/io/creat.c
@@ -0,0 +1,36 @@
+/* Copyright (C) 1991, 1996, 1997, 2003 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 <fcntl.h>
+#include <sys/types.h>
+#include <sysdep-cancel.h>
+
+#undef	creat
+
+/* Create FILE with protections MODE.  */
+int
+__libc_creat (file, mode)
+     const char *file;
+     mode_t mode;
+{
+  return __open (file, O_WRONLY|O_CREAT|O_TRUNC, mode);
+}
+weak_alias (__libc_creat, creat)
+
+/* __open handles cancellation.  */
+LIBC_CANCEL_HANDLED ();
diff --git a/io/creat64.c b/io/creat64.c
new file mode 100644
index 0000000000..39f4580571
--- /dev/null
+++ b/io/creat64.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 1991, 1996, 1997 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 <fcntl.h>
+#include <sys/types.h>
+
+#undef	creat
+
+/* Create FILE with protections MODE.  */
+int
+creat64 (file, mode)
+     const char *file;
+     mode_t mode;
+{
+  return __open64 (file, O_WRONLY|O_CREAT|O_TRUNC, mode);
+}
diff --git a/io/dup.c b/io/dup.c
new file mode 100644
index 0000000000..5d5e1b4cd5
--- /dev/null
+++ b/io/dup.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 1991, 1995, 1996, 1997 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 <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+/* Duplicate FD, returning a new file descriptor open on the same file.  */
+int
+__dup (fd)
+     int fd;
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (dup)
+
+weak_alias (__dup, dup)
+#include <stub-tag.h>
diff --git a/io/dup2.c b/io/dup2.c
new file mode 100644
index 0000000000..2b897896f6
--- /dev/null
+++ b/io/dup2.c
@@ -0,0 +1,48 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 2002 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 <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+
+/* Duplicate FD to FD2, closing the old FD2 and making FD2 be
+   open the same file as FD is.  Return FD2 or -1.  */
+int
+__dup2 (fd, fd2)
+     int fd;
+     int fd2;
+{
+  if (fd < 0 || fd2 < 0)
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+
+  if (fd == fd2)
+    /* No way to check that they are valid.  */
+    return fd2;
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+libc_hidden_def (__dup2)
+stub_warning (dup2)
+
+weak_alias (__dup2, dup2)
+#include <stub-tag.h>
diff --git a/io/euidaccess.c b/io/euidaccess.c
new file mode 100644
index 0000000000..943f1f7c82
--- /dev/null
+++ b/io/euidaccess.c
@@ -0,0 +1,42 @@
+/* Test for access to FILE using effective UID and GID.  Stub version.
+   Copyright (C) 1991,1995,1996,1997,2006 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 <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+
+int
+__euidaccess (file, type)
+     const char *file;
+     int type;
+{
+  if (file == NULL || (type & ~(R_OK|W_OK|X_OK|F_OK)) != 0)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+weak_alias (__euidaccess, euidaccess)
+weak_alias (__euidaccess, eaccess)
+stub_warning (euidaccess)
+stub_warning (eaccess)
+#include <stub-tag.h>
diff --git a/io/faccessat.c b/io/faccessat.c
new file mode 100644
index 0000000000..8e41d37c21
--- /dev/null
+++ b/io/faccessat.c
@@ -0,0 +1,51 @@
+/* Test for access to file, relative to open directory.  Stub version.
+   Copyright (C) 2006 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 <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+int
+faccessat (fd, file, type, flag)
+     int fd;
+     const char *file;
+     int type;
+     int flag;
+{
+  if (file == NULL || (flag & ~(AT_SYMLINK_NOFOLLOW | AT_EACCESS)) != 0
+      || (type & ~(R_OK|W_OK|X_OK|F_OK)) != 0)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (fd < 0 && fd != AT_FDCWD)
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (faccessat)
+
+#include <stub-tag.h>
diff --git a/io/fchdir.c b/io/fchdir.c
new file mode 100644
index 0000000000..db1e4f8f35
--- /dev/null
+++ b/io/fchdir.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 1991, 1995, 1996, 1997 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 <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+
+/* Change the current directory to FD.  */
+int
+fchdir (fd)
+     int fd;
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+stub_warning (fchdir)
+#include <stub-tag.h>
diff --git a/io/fchmod.c b/io/fchmod.c
new file mode 100644
index 0000000000..4b5eacb3eb
--- /dev/null
+++ b/io/fchmod.c
@@ -0,0 +1,42 @@
+/* Copyright (C) 1991, 1992, 1995, 1996, 1997 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 <errno.h>
+#include <stddef.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+/* Change the protections of the file FD refers to to MODE.  */
+int
+__fchmod (fd, mode)
+     int fd;
+     mode_t mode;
+{
+  if (fd < 0)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (fchmod)
+
+weak_alias (__fchmod, fchmod)
+#include <stub-tag.h>
diff --git a/io/fchmodat.c b/io/fchmodat.c
new file mode 100644
index 0000000000..6aecf2ac23
--- /dev/null
+++ b/io/fchmodat.c
@@ -0,0 +1,50 @@
+/* Change the protections of file relative to open directory.  Stub version.
+   Copyright (C) 2006 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 <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+int
+fchmodat (fd, file, mode, flag)
+     int fd;
+     const char *file;
+     mode_t mode;
+     int flag;
+{
+  if (file == NULL || (flag & ~AT_SYMLINK_NOFOLLOW) != 0)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (fd < 0 && fd != AT_FDCWD)
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (fchownat)
+
+#include <stub-tag.h>
diff --git a/io/fchown.c b/io/fchown.c
new file mode 100644
index 0000000000..e0d42dd293
--- /dev/null
+++ b/io/fchown.c
@@ -0,0 +1,43 @@
+/* Copyright (C) 1991, 1992, 1995, 1996, 1997 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 <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+/* Change the owner and group of the file referred to by FD.  */
+int
+__fchown (fd, owner, group)
+     int fd;
+     uid_t owner;
+     gid_t group;
+{
+  if (fd < 0)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (fchown)
+
+weak_alias (__fchown, fchown)
+#include <stub-tag.h>
diff --git a/io/fchownat.c b/io/fchownat.c
new file mode 100644
index 0000000000..f6921c9012
--- /dev/null
+++ b/io/fchownat.c
@@ -0,0 +1,51 @@
+/* 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 <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+/* Change the owner and group of FILE.  */
+int
+fchownat (fd, file, owner, group, flag)
+     int fd;
+     const char *file;
+     uid_t owner;
+     gid_t group;
+     int flag;
+{
+  if (file == NULL || (flag & ~AT_SYMLINK_NOFOLLOW) != 0)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (fd < 0 && fd != AT_FDCWD)
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (fchownat)
+
+#include <stub-tag.h>
diff --git a/io/fcntl.c b/io/fcntl.c
new file mode 100644
index 0000000000..db6fbc399c
--- /dev/null
+++ b/io/fcntl.c
@@ -0,0 +1,41 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 2002 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 <errno.h>
+#include <fcntl.h>
+
+/* Perform file control operations on FD.  */
+int
+__fcntl (fd, cmd)
+     int fd;
+     int cmd;
+{
+  if (fd < 0)
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+libc_hidden_def (__fcntl)
+stub_warning (fcntl)
+
+weak_alias (__fcntl, fcntl)
+#include <stub-tag.h>
diff --git a/io/fcntl.h b/io/fcntl.h
index ef9d5f9b81..72a944b3d4 100644
--- a/io/fcntl.h
+++ b/io/fcntl.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 1991,1992,1994-2001,2003,2004 Free Software Foundation, Inc.
+/* Copyright (C) 1991,1992,1994-2001,2003,2004,2005,2006
+	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
@@ -55,6 +56,18 @@ __BEGIN_DECLS
 # define SEEK_END	2	/* Seek from end of file.  */
 #endif	/* XPG */
 
+#ifdef __USE_ATFILE
+# define AT_FDCWD		-100	/* Special value used to indicate
+					   the *at functions should use the
+					   current working directory. */
+# define AT_SYMLINK_NOFOLLOW	0x100	/* Do not follow symbolic links.  */
+# define AT_REMOVEDIR		0x200	/* Remove directory instead of
+					   unlinking file.  */
+# define AT_SYMLINK_FOLLOW	0x400	/* Follow symbolic links.  */
+# define AT_EACCESS		0x200	/* Test access permitted for
+					   effective IDs, not real IDs.  */
+#endif
+
 /* Do the file control operation described by CMD on FD.
    The remaining arguments are interpreted depending on CMD.
 
@@ -82,6 +95,32 @@ extern int __REDIRECT (open, (__const char *__file, int __oflag, ...), open64)
 extern int open64 (__const char *__file, int __oflag, ...) __nonnull ((1));
 #endif
 
+#ifdef __USE_ATFILE
+/* Similar to `open' but a relative path name is interpreted relative to
+   the directory for which FD is a descriptor.
+
+   NOTE: some other `openat' implementation support additional functionality
+   through this interface, especially using the O_XATTR flag.  This is not
+   yet supported here.
+
+   This function is a cancellation point and therefore not marked with
+   __THROW.  */
+# ifndef __USE_FILE_OFFSET64
+extern int openat (int __fd, __const char *__file, int __oflag, ...)
+     __nonnull ((2));
+# else
+#  ifdef __REDIRECT
+extern int __REDIRECT (openat, (int __fd, __const char *__file, int __oflag,
+				...), openat64) __nonnull ((2));
+#  else
+#   define openat openat64
+#  endif
+# endif
+
+extern int openat64 (int __fd, __const char *__file, int __oflag, ...)
+     __nonnull ((2));
+#endif
+
 /* Create and open FILE, with mode MODE.  This takes an `int' MODE
    argument because that is what `mode_t' will be widened to.
 
diff --git a/io/flock.c b/io/flock.c
new file mode 100644
index 0000000000..db3bfcfcbe
--- /dev/null
+++ b/io/flock.c
@@ -0,0 +1,36 @@
+/* Copyright (C) 1992, 1995, 1996, 1997 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 <errno.h>
+#include <sys/file.h>
+
+/* Apply or remove an advisory lock, according to OPERATION,
+   on the file FD refers to.  */
+int
+__flock (fd, operation)
+     int fd;
+     int operation;
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+weak_alias (__flock, flock)
+
+stub_warning (flock)
+#include <stub-tag.h>
diff --git a/io/fstatat.c b/io/fstatat.c
new file mode 100644
index 0000000000..1ac80597a0
--- /dev/null
+++ b/io/fstatat.c
@@ -0,0 +1,58 @@
+/* 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file with other
+   programs, and to distribute those programs without any restriction
+   coming from the use of this file. (The GNU Lesser General Public
+   License restrictions do apply in other respects; for example, they
+   cover modification of the file, and distribution when not linked
+   into another program.)
+
+   Note that people who make modified versions of this file are not
+   obligated to grant this special exception for their modified
+   versions; it is their choice whether to do so. The GNU Lesser
+   General Public License gives permission to release a modified
+   version without this exception; this exception also makes it
+   possible to release a modified version which carries forward this
+   exception.
+
+   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 <sys/stat.h>
+
+/* This definition is only used if inlining fails for this function; see
+   the last page of <sys/stat.h>.  The real work is done by the `x'
+   function which is passed a version number argument.  We arrange in the
+   makefile that when not inlined this function is always statically
+   linked; that way a dynamically-linked executable always encodes the
+   version number corresponding to the data structures it uses, so the `x'
+   functions in the shared library can adapt without needing to recompile
+   all callers.  */
+
+#undef fstatat
+int
+fstatat (int fd, const char *file, struct stat *buf, int flag)
+{
+  return __fxstatat (_STAT_VER, fd, file, buf, flag);
+}
+
+/* Hide the symbol so that no definition but the one locally in the
+   executable or DSO is used.  */
+#ifdef HAVE_DOT_HIDDEN
+asm (".hidden\tfstatat");
+#endif
diff --git a/io/fstatat64.c b/io/fstatat64.c
new file mode 100644
index 0000000000..a14b42d42e
--- /dev/null
+++ b/io/fstatat64.c
@@ -0,0 +1,58 @@
+/* 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file with other
+   programs, and to distribute those programs without any restriction
+   coming from the use of this file. (The GNU Lesser General Public
+   License restrictions do apply in other respects; for example, they
+   cover modification of the file, and distribution when not linked
+   into another program.)
+
+   Note that people who make modified versions of this file are not
+   obligated to grant this special exception for their modified
+   versions; it is their choice whether to do so. The GNU Lesser
+   General Public License gives permission to release a modified
+   version without this exception; this exception also makes it
+   possible to release a modified version which carries forward this
+   exception.
+
+   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 <sys/stat.h>
+
+/* This definition is only used if inlining fails for this function; see
+   the last page of <sys/stat.h>.  The real work is done by the `x'
+   function which is passed a version number argument.  We arrange in the
+   makefile that when not inlined this function is always statically
+   linked; that way a dynamically-linked executable always encodes the
+   version number corresponding to the data structures it uses, so the `x'
+   functions in the shared library can adapt without needing to recompile
+   all callers.  */
+
+#undef fstatat64
+int
+fstatat64 (int fd, const char *file, struct stat64 *buf, int flag)
+{
+  return __fxstatat64 (_STAT_VER, fd, file, buf, flag);
+}
+
+/* Hide the symbol so that no definition but the one locally in the
+   executable or DSO is used.  */
+#ifdef HAVE_DOT_HIDDEN
+asm (".hidden\tfstatat64");
+#endif
diff --git a/io/fstatfs.c b/io/fstatfs.c
new file mode 100644
index 0000000000..4a1a996cbc
--- /dev/null
+++ b/io/fstatfs.c
@@ -0,0 +1,34 @@
+/* Return information about the filesystem on which FD resides.
+   Copyright (C) 1996, 1997 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 <errno.h>
+#include <sys/statfs.h>
+#include <stddef.h>
+
+/* Return information about the filesystem on which FD resides.  */
+int
+__fstatfs (int fd, struct statfs *buf)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (fstatfs)
+
+weak_alias (__fstatfs, fstatfs)
+#include <stub-tag.h>
diff --git a/io/fstatfs64.c b/io/fstatfs64.c
new file mode 100644
index 0000000000..249b97ea44
--- /dev/null
+++ b/io/fstatfs64.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 1998, 2000 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 <errno.h>
+#include <sys/statfs.h>
+
+/* Return information about the filesystem on which FD resides.  */
+int
+__fstatfs64 (int fd, struct statfs64 *buf)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+weak_alias (__fstatfs64, fstatfs64)
+
+stub_warning (fstatfs64)
+#include <stub-tag.h>
diff --git a/io/fstatvfs.c b/io/fstatvfs.c
new file mode 100644
index 0000000000..c5f75a7c97
--- /dev/null
+++ b/io/fstatvfs.c
@@ -0,0 +1,33 @@
+/* Return information about the filesystem on which FD resides.
+   Copyright (C) 1996, 1997, 1998, 2002 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 <errno.h>
+#include <sys/statvfs.h>
+
+/* Return information about the filesystem on which FD resides.  */
+int
+__fstatvfs (int fd, struct statvfs *buf)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (fstatvfs)
+weak_alias (__fstatvfs, fstatvfs)
+libc_hidden_weak (fstatvfs)
+#include <stub-tag.h>
diff --git a/io/fstatvfs64.c b/io/fstatvfs64.c
new file mode 100644
index 0000000000..47d4e266e2
--- /dev/null
+++ b/io/fstatvfs64.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 1998, 2001 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 <errno.h>
+#include <sys/statvfs.h>
+
+/* Return information about the filesystem on which FD resides.  */
+int
+__fstatvfs64 (int fd, struct statvfs64 *buf)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+weak_alias (__fstatvfs64, fstatvfs64)
+
+stub_warning (fstatvfs64)
+#include <stub-tag.h>
diff --git a/io/fts.c b/io/fts.c
index f0df56cc7b..8e628b481d 100644
--- a/io/fts.c
+++ b/io/fts.c
@@ -53,7 +53,7 @@ static char sccsid[] = "@(#)fts.c	8.6 (Berkeley) 8/14/94";
 #endif
 
 
-static FTSENT	*fts_alloc (FTS *, const char *, int) internal_function;
+static FTSENT	*fts_alloc (FTS *, const char *, size_t) internal_function;
 static FTSENT	*fts_build (FTS *, int) internal_function;
 static void	 fts_lfree (FTSENT *) internal_function;
 static void	 fts_load (FTS *, FTSENT *) internal_function;
@@ -93,8 +93,8 @@ fts_open(argv, options, compar)
 	register FTS *sp;
 	register FTSENT *p, *root;
 	register int nitems;
-	FTSENT *parent, *tmp;
-	int len;
+	FTSENT *parent = NULL;
+	FTSENT *tmp;
 
 	/* Options check. */
 	if (options & ~FTS_OPTIONMASK) {
@@ -120,18 +120,22 @@ fts_open(argv, options, compar)
 #ifndef MAXPATHLEN
 #define MAXPATHLEN 1024
 #endif
-	if (fts_palloc(sp, MAX(fts_maxarglen(argv), MAXPATHLEN)))
+	size_t maxarglen = fts_maxarglen(argv);
+	if (fts_palloc(sp, MAX(maxarglen, MAXPATHLEN)))
 		goto mem1;
 
 	/* Allocate/initialize root's parent. */
-	if ((parent = fts_alloc(sp, "", 0)) == NULL)
-		goto mem2;
-	parent->fts_level = FTS_ROOTPARENTLEVEL;
+	if (*argv != NULL) {
+		if ((parent = fts_alloc(sp, "", 0)) == NULL)
+			goto mem2;
+		parent->fts_level = FTS_ROOTPARENTLEVEL;
+	  }
 
 	/* Allocate/initialize root(s). */
 	for (root = NULL, nitems = 0; *argv != NULL; ++argv, ++nitems) {
 		/* Don't allow zero-length paths. */
-		if ((len = strlen(*argv)) == 0) {
+		size_t len = strlen(*argv);
+		if (len == 0) {
 			__set_errno (ENOENT);
 			goto mem3;
 		}
@@ -247,8 +251,7 @@ fts_close(sp)
 	/* Free up child linked list, sort array, path buffer. */
 	if (sp->fts_child)
 		fts_lfree(sp->fts_child);
-	if (sp->fts_array)
-		free(sp->fts_array);
+	free(sp->fts_array);
 	free(sp->fts_path);
 
 	/* Return to original directory, save errno if necessary. */
@@ -373,12 +376,14 @@ fts_read(sp)
 		}
 		p = sp->fts_child;
 		sp->fts_child = NULL;
+		sp->fts_cur = p;
 		goto name;
 	}
 
 	/* Move to the next node on this level. */
 next:	tmp = p;
 	if ((p = p->fts_link) != NULL) {
+		sp->fts_cur = p;
 		free(tmp);
 
 		/*
@@ -391,7 +396,7 @@ next:	tmp = p;
 				return (NULL);
 			}
 			fts_load(sp, p);
-			return (sp->fts_cur = p);
+			return p;
 		}
 
 		/*
@@ -417,11 +422,12 @@ next:	tmp = p;
 name:		t = sp->fts_path + NAPPEND(p->fts_parent);
 		*t++ = '/';
 		memmove(t, p->fts_name, p->fts_namelen + 1);
-		return (sp->fts_cur = p);
+		return p;
 	}
 
 	/* Move up to the parent node. */
 	p = tmp->fts_parent;
+	sp->fts_cur = p;
 	free(tmp);
 
 	if (p->fts_level == FTS_ROOTPARENTLEVEL) {
@@ -462,7 +468,7 @@ name:		t = sp->fts_path + NAPPEND(p->fts_parent);
 		return (NULL);
 	}
 	p->fts_info = p->fts_errno ? FTS_ERR : FTS_DP;
-	return (sp->fts_cur = p);
+	return p;
 }
 
 /*
@@ -690,7 +696,7 @@ fts_build(sp, type)
 		if (!ISSET(FTS_SEEDOT) && ISDOT(dp->d_name))
 			continue;
 
-		if ((p = fts_alloc(sp, dp->d_name, (int)_D_EXACT_NAMLEN (dp))) == NULL)
+		if ((p = fts_alloc(sp, dp->d_name, _D_EXACT_NAMLEN (dp))) == NULL)
 			goto mem1;
 		if (_D_EXACT_NAMLEN (dp) >= maxlen) {/* include space for NUL */
 			oldaddr = sp->fts_path;
@@ -701,8 +707,7 @@ fts_build(sp, type)
 				 * structures already allocated.
 				 */
 mem1:				saved_errno = errno;
-				if (p)
-					free(p);
+				free(p);
 				fts_lfree(head);
 				(void)__closedir(dirp);
 				cur->fts_info = FTS_ERR;
@@ -743,6 +748,10 @@ mem1:				saved_errno = errno;
 			p->fts_flags |= FTS_ISW;
 #endif
 
+#if 0
+		/* Unreachable code.  cderrno is only ever set to a nonnull
+		   value if dirp is closed at the same time.  But then we
+		   cannot enter this loop.  */
 		if (cderrno) {
 			if (nlinks) {
 				p->fts_info = FTS_NS;
@@ -750,7 +759,9 @@ mem1:				saved_errno = errno;
 			} else
 				p->fts_info = FTS_NSOK;
 			p->fts_accpath = cur->fts_accpath;
-		} else if (nlinks == 0
+		} else
+#endif
+		if (nlinks == 0
 #if defined DT_DIR && defined _DIRENT_HAVE_D_TYPE
 			   || (nostat &&
 			       dp->d_type != DT_DIR && dp->d_type != DT_UNKNOWN)
@@ -818,6 +829,7 @@ mem1:				saved_errno = errno;
 	     fts_safe_changedir(sp, cur->fts_parent, -1, ".."))) {
 		cur->fts_info = FTS_ERR;
 		SET(FTS_STOP);
+		fts_lfree(head);
 		return (NULL);
 	}
 
@@ -825,6 +837,7 @@ mem1:				saved_errno = errno;
 	if (!nitems) {
 		if (type == BREAD)
 			cur->fts_info = FTS_DP;
+		fts_lfree(head);
 		return (NULL);
 	}
 
@@ -961,7 +974,7 @@ internal_function
 fts_alloc(sp, name, namelen)
 	FTS *sp;
 	const char *name;
-	register int namelen;
+	size_t namelen;
 {
 	register FTSENT *p;
 	size_t len;
@@ -1031,10 +1044,7 @@ fts_palloc(sp, more)
 	 * We limit fts_pathlen to USHRT_MAX to be safe in both cases.
 	 */
 	if (sp->fts_pathlen < 0 || sp->fts_pathlen >= USHRT_MAX) {
-		if (sp->fts_path) {
-			free(sp->fts_path);
-			sp->fts_path = NULL;
-		}
+		free(sp->fts_path);
 		sp->fts_path = NULL;
 		__set_errno (ENAMETOOLONG);
 		return (1);
diff --git a/io/ftw.c b/io/ftw.c
index 7610851047..5495bc7ecc 100644
--- a/io/ftw.c
+++ b/io/ftw.c
@@ -1,5 +1,5 @@
 /* File tree walker functions.
-   Copyright (C) 1996-2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 1996-2003, 2004, 2006, 2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
@@ -36,7 +36,7 @@ char *alloca ();
 # endif
 #endif
 
-#if defined _LIBC
+#ifdef _LIBC
 # include <dirent.h>
 # define NAMLEN(dirent) _D_EXACT_NAMLEN (dirent)
 #else
@@ -59,12 +59,14 @@ char *alloca ();
 #endif
 
 #include <errno.h>
+#include <fcntl.h>
 #include <ftw.h>
 #include <limits.h>
 #include <search.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+#include <not-cancel.h>
 #if HAVE_SYS_PARAM_H || defined _LIBC
 # include <sys/param.h>
 #endif
@@ -142,9 +144,11 @@ int rpl_lstat (const char *, struct stat *);
 # ifdef _LIBC
 #  define LXSTAT __lxstat
 #  define XSTAT __xstat
+#  define FXSTATAT __fxstatat
 # else
 #  define LXSTAT(V,f,sb) lstat (f,sb)
 #  define XSTAT(V,f,sb) stat (f,sb)
+#  define FXSTATAT(V,d,f,sb,m) fstatat (d, f, sb, m)
 # endif
 # define FTW_FUNC_T __ftw_func_t
 # define NFTW_FUNC_T __nftw_func_t
@@ -161,6 +165,7 @@ int rpl_lstat (const char *, struct stat *);
 struct dir_data
 {
   DIR *stream;
+  int streamfd;
   char *content;
 };
 
@@ -262,7 +267,7 @@ find_object (struct ftw_data *data, struct STAT *st)
 
 static inline int
 __attribute ((always_inline))
-open_dir_stream (struct ftw_data *data, struct dir_data *dirp)
+open_dir_stream (int *dfdp, struct ftw_data *data, struct dir_data *dirp)
 {
   int result = 0;
 
@@ -296,8 +301,7 @@ open_dir_stream (struct ftw_data *data, struct dir_data *dirp)
 		      int save_err = errno;
 		      free (buf);
 		      __set_errno (save_err);
-		      result = -1;
-		      break;
+		      return -1;
 		    }
 		  buf = newp;
 		}
@@ -323,6 +327,7 @@ open_dir_stream (struct ftw_data *data, struct dir_data *dirp)
 	    {
 	      __closedir (st);
 	      data->dirstreams[data->actdir]->stream = NULL;
+	      data->dirstreams[data->actdir]->streamfd = -1;
 	      data->dirstreams[data->actdir] = NULL;
 	    }
 	}
@@ -331,15 +336,37 @@ open_dir_stream (struct ftw_data *data, struct dir_data *dirp)
   /* Open the new stream.  */
   if (result == 0)
     {
-      const char *name = ((data->flags & FTW_CHDIR)
-			  ? data->dirbuf + data->ftw.base: data->dirbuf);
       assert (data->dirstreams[data->actdir] == NULL);
 
-      dirp->stream = __opendir (name);
+      if (dfdp != NULL && *dfdp != -1)
+	{
+	  int fd = openat64_not_cancel_3 (*dfdp, data->dirbuf + data->ftw.base,
+					  O_RDONLY | O_DIRECTORY | O_NDELAY);
+	  dirp->stream = NULL;
+	  if (fd != -1 && (dirp->stream = __fdopendir (fd)) == NULL)
+	    close_not_cancel_no_status (fd);
+	}
+      else
+	{
+	  const char *name;
+
+	  if (data->flags & FTW_CHDIR)
+	    {
+	      name = data->dirbuf + data->ftw.base;
+	      if (name[0] == '\0')
+		name = ".";
+	    }
+	  else
+	    name = data->dirbuf;
+
+	  dirp->stream = __opendir (name);
+	}
+
       if (dirp->stream == NULL)
 	result = -1;
       else
 	{
+	  dirp->streamfd = dirfd (dirp->stream);
 	  dirp->content = NULL;
 	  data->dirstreams[data->actdir] = dirp;
 
@@ -355,7 +382,7 @@ open_dir_stream (struct ftw_data *data, struct dir_data *dirp)
 static int
 internal_function
 process_entry (struct ftw_data *data, struct dir_data *dir, const char *name,
-	       size_t namlen)
+	       size_t namlen, int d_type)
 {
   struct STAT st;
   int result = 0;
@@ -382,21 +409,40 @@ process_entry (struct ftw_data *data, struct dir_data *dir, const char *name,
 
   *((char *) __mempcpy (data->dirbuf + data->ftw.base, name, namlen)) = '\0';
 
-  if ((data->flags & FTW_CHDIR) == 0)
-    name = data->dirbuf;
+  int statres;
+  if (dir->streamfd != -1)
+    statres = FXSTATAT (_STAT_VER, dir->streamfd, name, &st,
+			(data->flags & FTW_PHYS) ? AT_SYMLINK_NOFOLLOW : 0);
+  else
+    {
+      if ((data->flags & FTW_CHDIR) == 0)
+	name = data->dirbuf;
 
-  if (((data->flags & FTW_PHYS)
-       ? LXSTAT (_STAT_VER, name, &st)
-       : XSTAT (_STAT_VER, name, &st)) < 0)
+      statres = ((data->flags & FTW_PHYS)
+		 ? LXSTAT (_STAT_VER, name, &st)
+		 : XSTAT (_STAT_VER, name, &st));
+    }
+
+  if (statres < 0)
     {
       if (errno != EACCES && errno != ENOENT)
 	result = -1;
-      else if (!(data->flags & FTW_PHYS)
-	       && LXSTAT (_STAT_VER, name, &st) == 0
-	       && S_ISLNK (st.st_mode))
+      else if (data->flags & FTW_PHYS)
+	flag = FTW_NS;
+      else if (d_type == DT_LNK)
 	flag = FTW_SLN;
       else
-	flag = FTW_NS;
+	{
+	  if (dir->streamfd != -1)
+	    statres = FXSTATAT (_STAT_VER, dir->streamfd, name, &st,
+				AT_SYMLINK_NOFOLLOW);
+	  else
+	    statres = LXSTAT (_STAT_VER, name, &st);
+	  if (statres == 0 && S_ISLNK (st.st_mode))
+	    flag = FTW_SLN;
+	  else
+	    flag = FTW_NS;
+	}
     }
   else
     {
@@ -445,7 +491,8 @@ ftw_dir (struct ftw_data *data, struct STAT *st, struct dir_data *old_dir)
 
   /* Open the stream for this directory.  This might require that
      another stream has to be closed.  */
-  result = open_dir_stream (data, &dir);
+  result = open_dir_stream (old_dir == NULL ? NULL : &old_dir->streamfd,
+			    data, &dir);
   if (result != 0)
     {
       if (errno == EACCES)
@@ -465,6 +512,7 @@ ftw_dir (struct ftw_data *data, struct STAT *st, struct dir_data *old_dir)
 fail:
 	  save_err = errno;
 	  __closedir (dir.stream);
+	  dir.streamfd = -1;
 	  __set_errno (save_err);
 
 	  if (data->actdir-- == 0)
@@ -486,7 +534,7 @@ fail:
 
   /* Next, update the `struct FTW' information.  */
   ++data->ftw.level;
-  startp = strchr (data->dirbuf, '\0');
+  startp = __rawmemchr (data->dirbuf, '\0');
   /* There always must be a directory name.  */
   assert (startp != data->dirbuf);
   if (startp[-1] != '/')
@@ -495,7 +543,7 @@ fail:
 
   while (dir.stream != NULL && (d = __readdir64 (dir.stream)) != NULL)
     {
-      result = process_entry (data, &dir, d->d_name, NAMLEN (d));
+      result = process_entry (data, &dir, d->d_name, NAMLEN (d), d->d_type);
       if (result != 0)
 	break;
     }
@@ -509,6 +557,7 @@ fail:
       assert (dir.content == NULL);
 
       __closedir (dir.stream);
+      dir.streamfd = -1;
       __set_errno (save_err);
 
       if (data->actdir-- == 0)
@@ -524,7 +573,8 @@ fail:
 	{
 	  char *endp = strchr (runp, '\0');
 
-	  result = process_entry (data, &dir, runp, endp - runp);
+	  // XXX Should store the d_type values as well?!
+	  result = process_entry (data, &dir, runp, endp - runp, DT_UNKNOWN);
 
 	  runp = endp + 1;
 	}
@@ -585,6 +635,7 @@ ftw_startup (const char *dir, int is_nftw, void *func, int descriptors,
   struct STAT st;
   int result = 0;
   int save_err;
+  int cwdfd = -1;
   char *cwd = NULL;
   char *cp;
 
@@ -639,11 +690,26 @@ ftw_startup (const char *dir, int is_nftw, void *func, int descriptors,
   /* Now go to the directory containing the initial file/directory.  */
   if (flags & FTW_CHDIR)
     {
-      /* GNU extension ahead.  */
-      cwd =  __getcwd (NULL, 0);
-      if (cwd == NULL)
-	result = -1;
-      else if (data.ftw.base > 0)
+      /* We have to be able to go back to the current working
+	 directory.  The best way to do this is to use a file
+	 descriptor.  */
+      cwdfd = __open (".", O_RDONLY | O_DIRECTORY);
+      if (cwdfd == -1)
+	{
+	  /* Try getting the directory name.  This can be needed if
+	     the current directory is executable but not readable.  */
+	  if (errno == EACCES)
+	    /* GNU extension ahead.  */
+	    cwd =  __getcwd (NULL, 0);
+
+	  if (cwd == NULL)
+	    goto out_fail;
+	}
+      else if (data.maxdir > 1)
+	/* Account for the file descriptor we use here.  */
+	--data.maxdir;
+
+      if (data.ftw.base > 0)
 	{
 	  /* Change to the directory the file is in.  In data.dirbuf
 	     we have a writable copy of the file name.  Just NUL
@@ -664,9 +730,16 @@ ftw_startup (const char *dir, int is_nftw, void *func, int descriptors,
   /* Get stat info for start directory.  */
   if (result == 0)
     {
-      const char *name = ((data.flags & FTW_CHDIR)
-			  ? data.dirbuf + data.ftw.base
-			  : data.dirbuf);
+      const char *name;
+
+      if (data.flags & FTW_CHDIR)
+	{
+	  name = data.dirbuf + data.ftw.base;
+	  if (name[0] == '\0')
+	    name = ".";
+	}
+      else
+	name = data.dirbuf;
 
       if (((flags & FTW_PHYS)
 	   ? LXSTAT (_STAT_VER, name, &st)
@@ -713,7 +786,13 @@ ftw_startup (const char *dir, int is_nftw, void *func, int descriptors,
     }
 
   /* Return to the start directory (if necessary).  */
-  if (cwd != NULL)
+  if (cwdfd != -1)
+    {
+      int save_err = errno;
+      __fchdir (cwdfd);
+      __set_errno (save_err);
+    }
+  else if (cwd != NULL)
     {
       int save_err = errno;
       __chdir (cwd);
@@ -722,6 +801,7 @@ ftw_startup (const char *dir, int is_nftw, void *func, int descriptors,
     }
 
   /* Free all memory.  */
+ out_fail:
   save_err = errno;
   __tdestroy (data.known_objects, free);
   free (data.dirbuf);
@@ -755,7 +835,7 @@ NFTW_NAME (path, func, descriptors, flags)
 }
 #else
 
-#include <shlib-compat.h>
+# include <shlib-compat.h>
 
 int NFTW_NEW_NAME (const char *, NFTW_FUNC_T, int, int);
 
@@ -777,7 +857,7 @@ NFTW_NEW_NAME (path, func, descriptors, flags)
 
 versioned_symbol (libc, NFTW_NEW_NAME, NFTW_NAME, GLIBC_2_3_3);
 
-#if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_3_3)
+# if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_3_3)
 
 /* Older nftw* version just ignored all unknown flags.  */
 
@@ -796,5 +876,5 @@ NFTW_OLD_NAME (path, func, descriptors, flags)
 }
 
 compat_symbol (libc, NFTW_OLD_NAME, NFTW_NAME, GLIBC_2_1);
-#endif
+# endif
 #endif
diff --git a/io/ftw64.c b/io/ftw64.c
index 7913b7af17..39e6ceabf8 100644
--- a/io/ftw64.c
+++ b/io/ftw64.c
@@ -1,5 +1,5 @@
 /* File tree walker functions.  LFS version.
-   Copyright (C) 1996, 1997, 1998, 2001 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1998, 2001, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
@@ -26,6 +26,7 @@
 #define STAT stat64
 #define LXSTAT __lxstat64
 #define XSTAT __xstat64
+#define FXSTATAT __fxstatat64
 #define FTW_FUNC_T __ftw64_func_t
 #define NFTW_FUNC_T __nftw64_func_t
 
diff --git a/io/fxstat.c b/io/fxstat.c
new file mode 100644
index 0000000000..b750daca63
--- /dev/null
+++ b/io/fxstat.c
@@ -0,0 +1,50 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 2002 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 <errno.h>
+#include <stddef.h>
+#include <sys/stat.h>
+
+/* Get information about the file descriptor FD in BUF.  */
+int
+__fxstat (int vers, int fd, struct stat *buf)
+{
+  if (vers != _STAT_VER)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (fd < 0)
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+  else if (buf == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (fstat)
+hidden_def (__fxstat)
+weak_alias (__fxstat, _fxstat)
+#include <stub-tag.h>
diff --git a/io/fxstat64.c b/io/fxstat64.c
new file mode 100644
index 0000000000..865ba49484
--- /dev/null
+++ b/io/fxstat64.c
@@ -0,0 +1,49 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 2002 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 <errno.h>
+#include <stddef.h>
+#include <sys/stat.h>
+
+/* Get information about the file descriptor FD in BUF.  */
+int
+__fxstat64 (int vers, int fd, struct stat64 *buf)
+{
+  if (vers != _STAT_VER)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (fd < 0)
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+  else if (buf == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+hidden_def (__fxstat64)
+stub_warning (fstat64)
+#include <stub-tag.h>
diff --git a/io/fxstatat.c b/io/fxstatat.c
new file mode 100644
index 0000000000..2486c73c84
--- /dev/null
+++ b/io/fxstatat.c
@@ -0,0 +1,50 @@
+/* Copyright (C) 2005, 2006 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 <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <sys/stat.h>
+
+/* Get information about the file descriptor FD in BUF.  */
+int
+__fxstatat (int vers, int fd, const char *filename, struct stat *buf, int flag)
+{
+  if (vers != _STAT_VER)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (fd < 0 && fd != AT_FDCWD)
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+  if (buf == NULL || (flag & ~AT_SYMLINK_NOFOLLOW) != 0)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+libc_hidden_def (__fxstatat)
+stub_warning (fstatat)
+#include <stub-tag.h>
diff --git a/io/fxstatat64.c b/io/fxstatat64.c
new file mode 100644
index 0000000000..20bdd610c3
--- /dev/null
+++ b/io/fxstatat64.c
@@ -0,0 +1,51 @@
+/* Copyright (C) 2005, 2006 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 <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <sys/stat.h>
+
+/* Get information about the file descriptor FD in BUF.  */
+int
+__fxstatat64 (int vers, int fd, const char *filename, struct stat64 *buf,
+	      int flag)
+{
+  if (vers != _STAT_VER)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (fd < 0 && fd != AT_FDCWD)
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+  if (buf == NULL || (flag & ~AT_SYMLINK_NOFOLLOW) != 0)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+libc_hidden_def (__fxstatat64)
+stub_warning (fstatat64)
+#include <stub-tag.h>
diff --git a/io/getcwd.c b/io/getcwd.c
new file mode 100644
index 0000000000..c472d1d7a6
--- /dev/null
+++ b/io/getcwd.c
@@ -0,0 +1,40 @@
+/* Copyright (C) 1991, 1992, 1995, 1996, 1997 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 <errno.h>
+#include <unistd.h>
+#include <stddef.h>
+
+/* Get the pathname of the current working directory,
+   and put it in SIZE bytes of BUF.  Returns NULL if the
+   directory couldn't be determined or SIZE was too small.
+   If successful, returns BUF.  In GNU, if BUF is NULL,
+   an array is allocated with `malloc'; the array is SIZE
+   bytes long, unless SIZE <= 0, in which case it is as
+   big as necessary.  */
+char *
+__getcwd (char *buf, size_t size)
+{
+  __set_errno (ENOSYS);
+  return NULL;
+}
+weak_alias (__getcwd, getcwd)
+
+stub_warning (__getcwd)
+stub_warning (getcwd)
+#include <stub-tag.h>
diff --git a/io/isatty.c b/io/isatty.c
new file mode 100644
index 0000000000..9b0410c614
--- /dev/null
+++ b/io/isatty.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 1991, 1995, 1996, 1997 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 <errno.h>
+#include <unistd.h>
+
+/* Return 1 if FD is a terminal, 0 if not.  */
+int
+__isatty (fd)
+     int fd;
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+weak_alias (__isatty, isatty)
+
+stub_warning (isatty)
+#include <stub-tag.h>
diff --git a/io/lchmod.c b/io/lchmod.c
new file mode 100644
index 0000000000..524b24c1ed
--- /dev/null
+++ b/io/lchmod.c
@@ -0,0 +1,33 @@
+/* lchmod -- Change the protections of a file or symbolic link.  Stub version.
+   Copyright (C) 2002 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 <errno.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+/* Change the protections of FILE to MODE.  */
+int
+lchmod (const char *file, mode_t mode)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+stub_warning (lchmod)
+#include <stub-tag.h>
diff --git a/io/lchown.c b/io/lchown.c
new file mode 100644
index 0000000000..4e0330e526
--- /dev/null
+++ b/io/lchown.c
@@ -0,0 +1,43 @@
+/* Copyright (C) 1996 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 <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+/* Change the owner and group of FILE.  */
+int
+__lchown (file, owner, group)
+     const char *file;
+     uid_t owner;
+     gid_t group;
+{
+  if (file == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (lchown)
+
+weak_alias (__lchown, lchown)
+#include <stub-tag.h>
diff --git a/io/link.c b/io/link.c
new file mode 100644
index 0000000000..70c9949704
--- /dev/null
+++ b/io/link.c
@@ -0,0 +1,42 @@
+/* Copyright (C) 1991, 1995, 1996, 1997 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 <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+
+
+/* Make a link to FROM called TO.  */
+int
+__link (from, to)
+     const char *from;
+     const char *to;
+{
+  if (from == NULL || to == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (link)
+
+weak_alias (__link, link)
+#include <stub-tag.h>
diff --git a/io/linkat.c b/io/linkat.c
new file mode 100644
index 0000000000..9afcf61a3c
--- /dev/null
+++ b/io/linkat.c
@@ -0,0 +1,52 @@
+/* Copyright (C) 2005, 2006 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 <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <unistd.h>
+
+
+/* Make a link to FROM relative to FROMFD called TO relative to TOFD.  */
+int
+linkat (fromfd, from, tofd, to, flags)
+     int fromfd;
+     const char *from;
+     int tofd;
+     const char *to;
+     int flags;
+{
+  if (from == NULL || to == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if ((tofd != AT_FDCWD && tofd < 0 && *to != '/')
+      || (fromfd != AT_FDCWD && fromfd < 0 && *from != '/'))
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (linkat)
+
+#include <stub-tag.h>
diff --git a/io/lockf.c b/io/lockf.c
new file mode 100644
index 0000000000..7b23f66bc9
--- /dev/null
+++ b/io/lockf.c
@@ -0,0 +1,74 @@
+/* Copyright (C) 1994,1996,1997,1998,2000,2003 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 <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+
+/* lockf is a simplified interface to fcntl's locking facilities.  */
+
+int
+lockf (int fd, int cmd, off_t len)
+{
+  struct flock fl;
+
+  memset ((char *) &fl, '\0', sizeof (fl));
+
+  /* lockf is always relative to the current file position.  */
+  fl.l_whence = SEEK_CUR;
+  fl.l_start = 0;
+  fl.l_len = len;
+
+  switch (cmd)
+    {
+    case F_TEST:
+      /* Test the lock: return 0 if FD is unlocked or locked by this process;
+	 return -1, set errno to EACCES, if another process holds the lock.  */
+      fl.l_type = F_RDLCK;
+      if (__fcntl (fd, F_GETLK, &fl) < 0)
+	return -1;
+      if (fl.l_type == F_UNLCK || fl.l_pid == __getpid ())
+	return 0;
+      __set_errno (EACCES);
+      return -1;
+
+    case F_ULOCK:
+      fl.l_type = F_UNLCK;
+      cmd = F_SETLK;
+      break;
+    case F_LOCK:
+      fl.l_type = F_WRLCK;
+      cmd = F_SETLKW;
+      break;
+    case F_TLOCK:
+      fl.l_type = F_WRLCK;
+      cmd = F_SETLK;
+      break;
+
+    default:
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  /* lockf() is a cancellation point but so is fcntl() if F_SETLKW is
+     used.  Therefore we don't have to care about cancellation here,
+     the fcntl() function will take care of it.  */
+  return __fcntl (fd, cmd, &fl);
+}
diff --git a/io/lockf64.c b/io/lockf64.c
new file mode 100644
index 0000000000..e3b110cd3f
--- /dev/null
+++ b/io/lockf64.c
@@ -0,0 +1,79 @@
+/* Copyright (C) 1994,96,97,98,99,2000 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 <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+
+/* lockf is a simplified interface to fcntl's locking facilities.  */
+
+int
+lockf64 (int fd, int cmd, off64_t len64)
+{
+  struct flock fl;
+  off_t len = (off_t) len64;
+
+  if (len64 != (off64_t) len)
+    {
+      /* We can't represent the length.  */
+      __set_errno (EOVERFLOW);
+      return -1;
+    }
+
+  memset ((char *) &fl, '\0', sizeof (fl));
+
+  /* lockf is always relative to the current file position.  */
+  fl.l_whence = SEEK_CUR;
+  fl.l_start = 0;
+  fl.l_len = len;
+
+  switch (cmd)
+    {
+    case F_TEST:
+      /* Test the lock: return 0 if FD is unlocked or locked by this process;
+	 return -1, set errno to EACCES, if another process holds the lock.  */
+      fl.l_type = F_RDLCK;
+      if (__fcntl (fd, F_GETLK, &fl) < 0)
+	return -1;
+      if (fl.l_type == F_UNLCK || fl.l_pid == __getpid ())
+	return 0;
+      __set_errno (EACCES);
+      return -1;
+
+    case F_ULOCK:
+      fl.l_type = F_UNLCK;
+      cmd = F_SETLK;
+      break;
+    case F_LOCK:
+      fl.l_type = F_WRLCK;
+      cmd = F_SETLKW;
+      break;
+    case F_TLOCK:
+      fl.l_type = F_WRLCK;
+      cmd = F_SETLK;
+      break;
+
+    default:
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  return __fcntl (fd, cmd, &fl);
+}
diff --git a/io/lseek64.c b/io/lseek64.c
new file mode 100644
index 0000000000..d0a8cff03e
--- /dev/null
+++ b/io/lseek64.c
@@ -0,0 +1,49 @@
+/* Copyright (C) 1991,95,96,97,98,2000 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 <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+/* Seek to OFFSET on FD, starting from WHENCE.  */
+off64_t
+__libc_lseek64 (int fd, off64_t offset, int whence)
+{
+  if (fd < 0)
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+  switch (whence)
+    {
+    case SEEK_SET:
+    case SEEK_CUR:
+    case SEEK_END:
+      break;
+    default:
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+weak_alias (__libc_lseek64, __lseek64)
+weak_alias (__libc_lseek64, lseek64)
+stub_warning (lseek64)
+#include <stub-tag.h>
diff --git a/io/lxstat.c b/io/lxstat.c
new file mode 100644
index 0000000000..23d4442b5c
--- /dev/null
+++ b/io/lxstat.c
@@ -0,0 +1,27 @@
+/* Copyright (C) 1991,1992,1995,1996,1997,2002 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 <sys/stat.h>
+
+int
+__lxstat (int version, const char *file, struct stat *buf)
+{
+  return __xstat (version, file, buf);
+}
+hidden_def (__lxstat)
+weak_alias (__lxstat, _lxstat)
diff --git a/io/lxstat64.c b/io/lxstat64.c
new file mode 100644
index 0000000000..596ecd2277
--- /dev/null
+++ b/io/lxstat64.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 2002 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 <errno.h>
+#include <stddef.h>
+#include <sys/stat.h>
+
+/* Get file information about FILE in BUF.
+   If FILE is a symbolic link, do not follow it.  */
+int
+__lxstat64 (int vers, const char *file, struct stat64 *buf)
+{
+  if (vers != _STAT_VER || file == NULL || buf == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+hidden_def (__lxstat64)
+stub_warning (__lxstat64)
+#include <stub-tag.h>
diff --git a/io/mkdir.c b/io/mkdir.c
new file mode 100644
index 0000000000..8037dfb3ee
--- /dev/null
+++ b/io/mkdir.c
@@ -0,0 +1,43 @@
+/* Copyright (C) 1991, 1995, 1996, 1997 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 <errno.h>
+#include <stddef.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+
+/* Create a directory named PATH with protections MODE.  */
+int
+__mkdir (path, mode)
+     const char *path;
+     mode_t mode;
+{
+  if (path == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (mkdir)
+
+weak_alias (__mkdir, mkdir)
+#include <stub-tag.h>
diff --git a/io/mkdirat.c b/io/mkdirat.c
new file mode 100644
index 0000000000..ccea3aa8d8
--- /dev/null
+++ b/io/mkdirat.c
@@ -0,0 +1,58 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 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 <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+
+/* Create a directory named PATH relative to FD with protections MODE.  */
+int
+mkdirat (fd, path, mode)
+     int fd;
+     const char *path;
+     mode_t mode;
+{
+  if (path == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (fd != AT_FDCWD && path[0] != '/')
+    {
+      /* Check FD is associated with a directory.  */
+      struct stat64 st;
+      if (__fxstat64 (_STAT_VER, fd, &st) != 0)
+	return -1;
+
+      if (!S_ISDIR (st.st_mode))
+	{
+	  __set_errno (ENOTDIR);
+	  return -1;
+	}
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (mkdirat)
+
+#include <stub-tag.h>
diff --git a/io/mkfifo.c b/io/mkfifo.c
new file mode 100644
index 0000000000..614ebe97c3
--- /dev/null
+++ b/io/mkfifo.c
@@ -0,0 +1,43 @@
+/* Copyright (C) 1991, 1995, 1996, 1997 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 <errno.h>
+#include <stddef.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+
+/* Create a named pipe (FIFO) named PATH with protections MODE.  */
+int
+mkfifo (path, mode)
+     const char *path;
+     mode_t mode;
+{
+  if (path == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+
+stub_warning (mkfifo)
+#include <stub-tag.h>
diff --git a/io/mkfifoat.c b/io/mkfifoat.c
new file mode 100644
index 0000000000..48c38c8182
--- /dev/null
+++ b/io/mkfifoat.c
@@ -0,0 +1,60 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 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 <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+
+/* Create a named pipe (FIFO) named PATH relative to FD with
+   protections MODE.  */
+int
+mkfifoat (fd, path, mode)
+     int fd;
+     const char *path;
+     mode_t mode;
+{
+  if (path == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (fd != AT_FDCWD && path[0] != '/')
+    {
+      /* Check FD is associated with a directory.  */
+      struct stat64 st;
+      if (__fxstat64 (_STAT_VER, fd, &st) != 0)
+	return -1;
+
+      if (!S_ISDIR (st.st_mode))
+	{
+	  __set_errno (ENOTDIR);
+	  return -1;
+	}
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+
+stub_warning (mkfifoat)
+#include <stub-tag.h>
diff --git a/io/mknod.c b/io/mknod.c
new file mode 100644
index 0000000000..7d43593a25
--- /dev/null
+++ b/io/mknod.c
@@ -0,0 +1,62 @@
+/* Copyright (C) 1995, 1996, 2001 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file with other
+   programs, and to distribute those programs without any restriction
+   coming from the use of this file. (The GNU Lesser General Public
+   License restrictions do apply in other respects; for example, they
+   cover modification of the file, and distribution when not linked
+   into another program.)
+
+   Note that people who make modified versions of this file are not
+   obligated to grant this special exception for their modified
+   versions; it is their choice whether to do so. The GNU Lesser
+   General Public License gives permission to release a modified
+   version without this exception; this exception also makes it
+   possible to release a modified version which carries forward this
+   exception.
+
+   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 <sys/types.h>
+#include <sys/stat.h>
+
+/* This definition is only used if inlining fails for this function; see
+   the last page of <sys/stat.h>.  The real work is done by the `x'
+   function which is passed a version number argument.  We arrange in the
+   makefile that when not inlined this function is always statically
+   linked; that way a dynamically-linked executable always encodes the
+   version number corresponding to the data structures it uses, so the `x'
+   functions in the shared library can adapt without needing to recompile
+   all callers.  */
+
+int
+__mknod (const char *path, mode_t mode, dev_t dev)
+{
+  return __xmknod (_MKNOD_VER, path, mode, &dev);
+}
+
+weak_alias (__mknod, mknod)
+
+/* Hide the symbol so that no definition but the one locally in the
+   executable or DSO is used.  */
+#ifdef HAVE_DOT_HIDDEN
+asm (".hidden\tmknod");
+asm (".hidden\t__mknod");
+#endif
diff --git a/io/mknodat.c b/io/mknodat.c
new file mode 100644
index 0000000000..ac515b5b48
--- /dev/null
+++ b/io/mknodat.c
@@ -0,0 +1,60 @@
+/* Copyright (C) 1995, 1996, 2001, 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file with other
+   programs, and to distribute those programs without any restriction
+   coming from the use of this file. (The GNU Lesser General Public
+   License restrictions do apply in other respects; for example, they
+   cover modification of the file, and distribution when not linked
+   into another program.)
+
+   Note that people who make modified versions of this file are not
+   obligated to grant this special exception for their modified
+   versions; it is their choice whether to do so. The GNU Lesser
+   General Public License gives permission to release a modified
+   version without this exception; this exception also makes it
+   possible to release a modified version which carries forward this
+   exception.
+
+   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 <sys/types.h>
+#include <sys/stat.h>
+
+/* This definition is only used if inlining fails for this function; see
+   the last page of <sys/stat.h>.  The real work is done by the `x'
+   function which is passed a version number argument.  We arrange in the
+   makefile that when not inlined this function is always statically
+   linked; that way a dynamically-linked executable always encodes the
+   version number corresponding to the data structures it uses, so the `x'
+   functions in the shared library can adapt without needing to recompile
+   all callers.  */
+
+int
+mknodat (int fd, const char *path, mode_t mode, dev_t dev)
+{
+  return __xmknodat (_MKNOD_VER, fd, path, mode, &dev);
+}
+
+
+/* Hide the symbol so that no definition but the one locally in the
+   executable or DSO is used.  */
+#ifdef HAVE_DOT_HIDDEN
+asm (".hidden\tmknodat");
+#endif
diff --git a/io/open.c b/io/open.c
new file mode 100644
index 0000000000..188110b3f3
--- /dev/null
+++ b/io/open.c
@@ -0,0 +1,54 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 2002 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 <errno.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stddef.h>
+
+/* Open FILE with access OFLAG.  If OFLAG includes O_CREAT,
+   a third argument is the file protection.  */
+int
+__open (file, oflag)
+     const char *file;
+     int oflag;
+{
+  int mode;
+
+  if (file == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (oflag & O_CREAT)
+    {
+      va_list arg;
+      va_start(arg, oflag);
+      mode = va_arg(arg, int);
+      va_end(arg);
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+libc_hidden_def (__open)
+stub_warning (open)
+
+weak_alias (__open, open)
+#include <stub-tag.h>
diff --git a/io/open64.c b/io/open64.c
new file mode 100644
index 0000000000..d9a38112ac
--- /dev/null
+++ b/io/open64.c
@@ -0,0 +1,57 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 1999, 2000, 2002
+   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 <errno.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <bp-sym.h>
+
+/* Open FILE with access OFLAG.  If OFLAG includes O_CREAT,
+   a third argument is the file protection.  */
+int
+__libc_open64 (file, oflag)
+     const char *file;
+     int oflag;
+{
+  int mode;
+
+  if (file == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (oflag & O_CREAT)
+    {
+      va_list arg;
+      va_start (arg, oflag);
+      mode = va_arg (arg, int);
+      va_end (arg);
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+strong_alias (__libc_open64, __open64)
+libc_hidden_def (__open64)
+weak_alias (__libc_open64, BP_SYM (open64))
+
+stub_warning (open64)
+#include <stub-tag.h>
diff --git a/io/openat.c b/io/openat.c
new file mode 100644
index 0000000000..c65ad19c7a
--- /dev/null
+++ b/io/openat.c
@@ -0,0 +1,71 @@
+/* Copyright (C) 2005, 2006 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 <errno.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <sys/stat.h>
+
+/* Open FILE with access OFLAG.  Interpret relative paths relative to
+   the directory associated with FD.  If OFLAG includes O_CREAT, a
+   third argument is the file protection.  */
+int
+__openat (fd, file, oflag)
+     int fd;
+     const char *file;
+     int oflag;
+{
+  int mode;
+
+  if (file == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (fd != AT_FDCWD && file[0] != '/')
+    {
+      /* Check FD is associated with a directory.  */
+      struct stat64 st;
+      if (__fxstat64 (_STAT_VER, fd, &st) != 0)
+	return -1;
+
+      if (!S_ISDIR (st.st_mode))
+	{
+	  __set_errno (ENOTDIR);
+	  return -1;
+	}
+    }
+
+  if (oflag & O_CREAT)
+    {
+      va_list arg;
+      va_start (arg, oflag);
+      mode = va_arg (arg, int);
+      va_end (arg);
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+libc_hidden_def (__openat)
+weak_alias (__openat, openat)
+stub_warning (openat)
+
+#include <stub-tag.h>
diff --git a/io/openat64.c b/io/openat64.c
new file mode 100644
index 0000000000..830701a949
--- /dev/null
+++ b/io/openat64.c
@@ -0,0 +1,71 @@
+/* Copyright (C) 2005, 2006 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 <errno.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <sys/stat.h>
+
+/* Open FILE with access OFLAG.  Interpret relative paths relative to
+   the directory associated with FD.  If OFLAG includes O_CREAT, a
+   third argument is the file protection.  */
+int
+__openat64 (fd, file, oflag)
+     int fd;
+     const char *file;
+     int oflag;
+{
+  int mode;
+
+  if (file == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (fd != AT_FDCWD && file[0] != '/')
+    {
+      /* Check FD is associated with a directory.  */
+      struct stat64 st;
+      if (__fxstat64 (_STAT_VER, fd, &st) != 0)
+	return -1;
+
+      if (!S_ISDIR (st.st_mode))
+	{
+	  __set_errno (ENOTDIR);
+	  return -1;
+	}
+    }
+
+  if (oflag & O_CREAT)
+    {
+      va_list arg;
+      va_start (arg, oflag);
+      mode = va_arg (arg, int);
+      va_end (arg);
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+libc_hidden_def (__openat64)
+weak_alias (__openat64, openat64)
+stub_warning (openat64)
+
+#include <stub-tag.h>
diff --git a/io/pipe.c b/io/pipe.c
new file mode 100644
index 0000000000..babaf9c24b
--- /dev/null
+++ b/io/pipe.c
@@ -0,0 +1,44 @@
+/* Copyright (C) 1991, 1995, 1996, 2002 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 <errno.h>
+#include <unistd.h>
+#include <stddef.h>
+
+/* Create a one-way communication channel (__pipe).
+   If successful, two file descriptors are stored in PIPEDES;
+   bytes written on PIPEDES[1] can be read from PIPEDES[0].
+   Returns 0 if successful, -1 if not.  */
+int
+__pipe (__pipedes)
+     int __pipedes[2];
+{
+  if (__pipedes == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+libc_hidden_def (__pipe)
+stub_warning (pipe)
+
+weak_alias (__pipe, pipe)
+#include <stub-tag.h>
diff --git a/io/poll.c b/io/poll.c
new file mode 100644
index 0000000000..9f2f191764
--- /dev/null
+++ b/io/poll.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 1994, 1995, 1996, 1997, 2001 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 <sys/poll.h>
+#include <errno.h>
+
+/* Poll the file descriptors described by the NFDS structures starting at
+   FDS.  If TIMEOUT is nonzero and not -1, allow TIMEOUT milliseconds for
+   an event to occur; if TIMEOUT is -1, block until an event occurs.
+   Returns the number of file descriptors with events, zero if timed out,
+   or -1 for errors.  */
+
+int
+poll (fds, nfds, timeout)
+     struct pollfd *fds;
+     nfds_t nfds;
+     int timeout;
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+stub_warning (poll)
+#include <stub-tag.h>
diff --git a/io/posix_fadvise.c b/io/posix_fadvise.c
new file mode 100644
index 0000000000..92f8bb8974
--- /dev/null
+++ b/io/posix_fadvise.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 2000, 2003 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 <errno.h>
+#include <fcntl.h>
+
+/* Advice the system about the expected behaviour of the application with
+   respect to the file associated with FD.  */
+
+int
+posix_fadvise (int fd, __off_t offset, __off_t len, int advise)
+{
+  return ENOSYS;
+}
+stub_warning (posix_fadvise)
+#include <stub-tag.h>
diff --git a/io/posix_fadvise64.c b/io/posix_fadvise64.c
new file mode 100644
index 0000000000..e7eae5e6e3
--- /dev/null
+++ b/io/posix_fadvise64.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 2000, 2003 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 <errno.h>
+#include <fcntl.h>
+
+/* Advice the system about the expected behaviour of the application with
+   respect to the file associated with FD.  */
+
+int
+posix_fadvise64 (int fd, __off64_t offset, __off64_t len, int advise)
+{
+  return ENOSYS;
+}
+stub_warning (posix_fadvise64)
+#include <stub-tag.h>
diff --git a/io/posix_fallocate.c b/io/posix_fallocate.c
new file mode 100644
index 0000000000..218b4adbe3
--- /dev/null
+++ b/io/posix_fallocate.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 2000, 2003 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 <errno.h>
+#include <fcntl.h>
+
+/* Reserve storage for the data of the file associated with FD.  */
+
+int
+posix_fallocate (int fd, __off_t offset, __off_t len)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (posix_fallocate)
+#include <stub-tag.h>
diff --git a/io/posix_fallocate64.c b/io/posix_fallocate64.c
new file mode 100644
index 0000000000..80c1cd385d
--- /dev/null
+++ b/io/posix_fallocate64.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 2000, 2003 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 <errno.h>
+#include <fcntl.h>
+
+/* Reserve storage for the data of the file associated with FD.  */
+
+int
+posix_fallocate64 (int fd, __off64_t offset, __off64_t len)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (posix_fallocate64)
+#include <stub-tag.h>
diff --git a/io/ppoll.c b/io/ppoll.c
new file mode 100644
index 0000000000..a035cfeb1f
--- /dev/null
+++ b/io/ppoll.c
@@ -0,0 +1,76 @@
+/* Copyright (C) 2006 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2006.
+
+   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 <errno.h>
+#include <limits.h>
+#include <signal.h>
+#include <stddef.h>	/* For NULL.  */
+#include <sys/poll.h>
+#include <sysdep-cancel.h>
+
+
+int
+ppoll (struct pollfd *fds, nfds_t nfds, const struct timespec *timeout,
+       const sigset_t *sigmask)
+{
+  int tval = -1;
+
+  /* poll uses a simple millisecond value.  Convert it.  */
+  if (timeout != NULL)
+    {
+      if (timeout->tv_sec < 0
+	  || timeout->tv_nsec < 0 || timeout->tv_nsec >= 1000000000)
+	{
+	  __set_errno (EINVAL);
+	  return -1;
+	}
+
+      if (timeout->tv_sec > INT_MAX / 1000
+	  || (timeout->tv_sec == INT_MAX / 1000
+	      && ((timeout->tv_nsec + 999999) / 1000000 > INT_MAX % 1000)))
+	/* We cannot represent the timeout in an int value.  Wait
+	   forever.  */
+	tval = -1;
+      else
+	tval = (timeout->tv_sec * 1000
+		+ (timeout->tv_nsec + 999999) / 1000000);
+    }
+
+  /* The setting and restoring of the signal mask and the select call
+     should be an atomic operation.  This can't be done without kernel
+     help.  */
+  sigset_t savemask;
+  if (sigmask != NULL)
+    __sigprocmask (SIG_SETMASK, sigmask, &savemask);
+
+  /* Note the ppoll() is a cancellation point.  But since we call
+     poll() which itself is a cancellation point we do not have
+     to do anything here.  */
+  int retval = __poll (fds, nfds, tval);
+
+  if (sigmask != NULL)
+    __sigprocmask (SIG_SETMASK, &savemask, NULL);
+
+  return retval;
+}
+
+#ifndef ppoll
+/* __poll handles cancellation.  */
+LIBC_CANCEL_HANDLED ();
+#endif
diff --git a/io/read.c b/io/read.c
new file mode 100644
index 0000000000..3943edd689
--- /dev/null
+++ b/io/read.c
@@ -0,0 +1,49 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 2002 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 <errno.h>
+#include <unistd.h>
+#include <stddef.h>
+
+/* Read NBYTES into BUF from FD.  Return the number read or -1.  */
+ssize_t
+__libc_read (int fd, void *buf, size_t nbytes)
+{
+  if (nbytes == 0)
+    return 0;
+  if (fd < 0)
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+  if (buf == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+libc_hidden_def (__libc_read)
+stub_warning (read)
+
+weak_alias (__libc_read, __read)
+libc_hidden_weak (__read)
+weak_alias (__libc_read, read)
+#include <stub-tag.h>
diff --git a/io/readlink.c b/io/readlink.c
new file mode 100644
index 0000000000..b69d08695c
--- /dev/null
+++ b/io/readlink.c
@@ -0,0 +1,37 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 2006 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 <errno.h>
+#include <unistd.h>
+
+/* Read the contents of the symbolic link PATH into no more than
+   LEN bytes of BUF.  The contents are not null-terminated.
+   Returns the number of characters read, or -1 for errors.  */
+ssize_t
+__readlink (path, buf, len)
+     const char *path;
+     char *buf;
+     size_t len;
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (readlink)
+
+weak_alias (__readlink, readlink)
+#include <stub-tag.h>
diff --git a/io/readlinkat.c b/io/readlinkat.c
new file mode 100644
index 0000000000..7e6a2227d8
--- /dev/null
+++ b/io/readlinkat.c
@@ -0,0 +1,51 @@
+/* Copyright (C) 2005, 2006 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 <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+/* Read the contents of the symbolic link PATH relative to FD into no
+   more than LEN bytes of BUF.  The contents are not null-terminated.
+   Returns the number of characters read, or -1 for errors.  */
+ssize_t
+readlinkat (fd, path, buf, len)
+     int fd;
+     const char *path;
+     char *buf;
+     size_t len;
+{
+  if (path == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (fd != AT_FDCWD && fd < 0 && *path != '/')
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (readlinkat)
+libc_hidden_def (readlinkat)
+
+#include <stub-tag.h>
diff --git a/io/rmdir.c b/io/rmdir.c
new file mode 100644
index 0000000000..5a16fd4284
--- /dev/null
+++ b/io/rmdir.c
@@ -0,0 +1,41 @@
+/* Copyright (C) 1991, 1995, 1996, 1997 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 <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+
+
+/* Remove the directory PATH.  */
+int
+__rmdir (path)
+     const char *path;
+{
+  if (path == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (rmdir)
+
+weak_alias (__rmdir, rmdir)
+#include <stub-tag.h>
diff --git a/io/sendfile.c b/io/sendfile.c
new file mode 100644
index 0000000000..98dc9a814d
--- /dev/null
+++ b/io/sendfile.c
@@ -0,0 +1,33 @@
+/* sendfile -- copy data directly from one file descriptor to another
+   Copyright (C) 2002 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 <sys/sendfile.h>
+#include <errno.h>
+
+/* Send COUNT bytes from file associated with IN_FD starting at OFFSET to
+   descriptor OUT_FD.  */
+ssize_t
+sendfile (int out_fd, int in_fd, off_t *offset, size_t count)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (sendfile)
+
+#include <stub-tag.h>
diff --git a/io/sendfile64.c b/io/sendfile64.c
new file mode 100644
index 0000000000..76b961e22a
--- /dev/null
+++ b/io/sendfile64.c
@@ -0,0 +1,33 @@
+/* sendfile -- copy data directly from one file descriptor to another
+   Copyright (C) 2002 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 <sys/sendfile.h>
+#include <errno.h>
+
+/* Send COUNT bytes from file associated with IN_FD starting at OFFSET to
+   descriptor OUT_FD.  */
+ssize_t
+sendfile64 (int out_fd, int in_fd, off64_t *offset, size_t count)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (sendfile64)
+
+#include <stub-tag.h>
diff --git a/io/statfs.c b/io/statfs.c
new file mode 100644
index 0000000000..af4a9ea4e5
--- /dev/null
+++ b/io/statfs.c
@@ -0,0 +1,35 @@
+/* statfs -- Return information about the filesystem on which FILE resides.
+   Copyright (C) 1996, 1997, 2002 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 <errno.h>
+#include <sys/statfs.h>
+#include <stddef.h>
+
+/* Return information about the filesystem on which FILE resides.  */
+int
+__statfs (const char *file, struct statfs *buf)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+libc_hidden_def (__statfs)
+weak_alias (__statfs, statfs)
+
+stub_warning (statfs)
+#include <stub-tag.h>
diff --git a/io/statfs64.c b/io/statfs64.c
new file mode 100644
index 0000000000..cf1a7d82a4
--- /dev/null
+++ b/io/statfs64.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 1998, 2000 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 <errno.h>
+#include <sys/statfs.h>
+
+/* Return information about the filesystem on which FILE resides.  */
+int
+__statfs64 (const char *file, struct statfs64 *buf)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+weak_alias (__statfs64, statfs64)
+
+stub_warning (statfs64)
+#include <stub-tag.h>
diff --git a/io/statvfs.c b/io/statvfs.c
new file mode 100644
index 0000000000..22e24cfeeb
--- /dev/null
+++ b/io/statvfs.c
@@ -0,0 +1,34 @@
+/* Return information about the filesystem on which FILE resides.
+   Copyright (C) 1998, 2002 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 <errno.h>
+#include <sys/statvfs.h>
+#include <stddef.h>
+
+/* Return information about the filesystem on which FILE resides.  */
+int
+__statvfs (const char *file, struct statvfs *buf)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+weak_alias (__statvfs, statvfs)
+libc_hidden_weak (statvfs)
+stub_warning (statvfs)
+#include <stub-tag.h>
diff --git a/io/statvfs64.c b/io/statvfs64.c
new file mode 100644
index 0000000000..4424abdbea
--- /dev/null
+++ b/io/statvfs64.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 1998, 2001 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 <errno.h>
+#include <sys/statvfs.h>
+
+/* Return information about the filesystem on which FILE resides.  */
+int
+__statvfs64 (const char *file, struct statvfs64 *buf)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+weak_alias (__statvfs64, statvfs64)
+
+stub_warning (statvfs64)
+#include <stub-tag.h>
diff --git a/io/symlink.c b/io/symlink.c
new file mode 100644
index 0000000000..e6c6709f1a
--- /dev/null
+++ b/io/symlink.c
@@ -0,0 +1,42 @@
+/* Copyright (C) 1991, 1995, 1996, 1997 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 <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+
+
+/* Make a link to FROM called TO.  */
+int
+__symlink (from, to)
+     const char *from;
+     const char *to;
+{
+  if (from == NULL || to == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (symlink)
+
+weak_alias (__symlink, symlink)
+#include <stub-tag.h>
diff --git a/io/symlinkat.c b/io/symlinkat.c
new file mode 100644
index 0000000000..5c2f3f553a
--- /dev/null
+++ b/io/symlinkat.c
@@ -0,0 +1,49 @@
+/* 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 <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <unistd.h>
+
+
+/* Make a link to FROM called TO relative to FD.  */
+int
+symlinkat (from, fd, to)
+     const char *from;
+     int fd;
+     const char *to;
+{
+  if (from == NULL || to == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (fd != AT_FDCWD && fd < 0 && *to != '/')
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (symlinkat)
+
+#include <stub-tag.h>
diff --git a/io/sys/poll.h b/io/sys/poll.h
index 89a27eab2b..4085b785ee 100644
--- a/io/sys/poll.h
+++ b/io/sys/poll.h
@@ -1,5 +1,5 @@
 /* Compatibility definitions for System V `poll' interface.
-   Copyright (C) 1994,96,97,98,99,2000,2001,2004 Free Software Foundation, Inc.
+   Copyright (C) 1994,1996-2001,2004,2005,2006 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
@@ -24,6 +24,13 @@
 
 /* Get the platform dependent bits of `poll'.  */
 #include <bits/poll.h>
+#ifdef __USE_GNU
+/* Get the __sigset_t definition.  */
+# include <bits/sigset.h>
+/* Get the timespec definition.  */
+# define __need_timespec
+# include <time.h>
+#endif
 
 
 /* Type used for the number of file descriptors.  */
@@ -44,9 +51,24 @@ __BEGIN_DECLS
    FDS.  If TIMEOUT is nonzero and not -1, allow TIMEOUT milliseconds for
    an event to occur; if TIMEOUT is -1, block until an event occurs.
    Returns the number of file descriptors with events, zero if timed out,
-   or -1 for errors.  */
+   or -1 for errors.
+
+   This function is a cancellation point and therefore not marked with
+   __THROW.  */
 extern int poll (struct pollfd *__fds, nfds_t __nfds, int __timeout);
 
+#ifdef __USE_GNU
+/* Like poll, but before waiting the threads signal mask is replaced
+   with that specified in the fourth parameter.  For better usability,
+   the timeout value is specified using a TIMESPEC object.
+
+   This function is a cancellation point and therefore not marked with
+   __THROW.  */
+extern int ppoll (struct pollfd *__fds, nfds_t __nfds,
+		  __const struct timespec *__timeout,
+		  __const __sigset_t *__ss);
+#endif
+
 __END_DECLS
 
 #endif	/* sys/poll.h */
diff --git a/io/sys/sendfile.h b/io/sys/sendfile.h
index 24256b5414..4c1367b6be 100644
--- a/io/sys/sendfile.h
+++ b/io/sys/sendfile.h
@@ -32,19 +32,19 @@ __BEGIN_DECLS
    case of error.  */
 #ifndef __USE_FILE_OFFSET64
 extern ssize_t sendfile (int __out_fd, int __in_fd, off_t *__offset,
-			 size_t __count) __THROW __nonnull ((3));
+			 size_t __count) __THROW;
 #else
 # ifdef __REDIRECT_NTH
 extern ssize_t __REDIRECT_NTH (sendfile,
 			       (int __out_fd, int __in_fd, __off64_t *__offset,
-				size_t __count), sendfile64) __nonnull ((3));
+				size_t __count), sendfile64);
 # else
 #  define sendfile sendfile64
 # endif
 #endif
 #ifdef __USE_LARGEFILE64
 extern ssize_t sendfile64 (int __out_fd, int __in_fd, __off64_t *__offset,
-			   size_t __count) __THROW __nonnull ((3));
+			   size_t __count) __THROW;
 #endif
 
 __END_DECLS
diff --git a/io/sys/stat.h b/io/sys/stat.h
index 7075003922..4cc0b429a2 100644
--- a/io/sys/stat.h
+++ b/io/sys/stat.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991,1992,1995-2002,2003,2004 Free Software Foundation, Inc.
+/* Copyright (C) 1991,1992,1995-2004,2005,2006 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
@@ -228,6 +228,30 @@ extern int stat64 (__const char *__restrict __file,
 extern int fstat64 (int __fd, struct stat64 *__buf) __THROW __nonnull ((2));
 #endif
 
+#ifdef __USE_ATFILE
+/* Similar to stat, get the attributes for FILE and put them in BUF.
+   Relative path names are interpreted relative to FD unless FD is
+   AT_FDCWD.  */
+# ifndef __USE_FILE_OFFSET64
+extern int fstatat (int __fd, __const char *__restrict __file,
+		    struct stat *__restrict __buf, int __flag)
+     __THROW __nonnull ((2, 3));
+# else
+#  ifdef __REDIRECT_NTH
+extern int __REDIRECT_NTH (fstatat, (int __fd, __const char *__restrict __file,
+				     struct stat *__restrict __buf,
+				     int __flag),
+			   fstatat64) __nonnull ((2, 3));
+#  else
+#   define fstatat fstatat64
+#  endif
+# endif
+
+extern int fstatat64 (int __fd, __const char *__restrict __file,
+		      struct stat64 *__restrict __buf, int __flag)
+     __THROW __nonnull ((2, 3));
+#endif
+
 #if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
 # ifndef __USE_FILE_OFFSET64
 /* Get file attributes about FILE and put them in BUF.
@@ -269,6 +293,14 @@ extern int lchmod (__const char *__file, __mode_t __mode)
 extern int fchmod (int __fd, __mode_t __mode) __THROW;
 #endif
 
+#ifdef __USE_ATFILE
+/* Set file access permissions of FILE relative to
+   the directory FD is open on.  */
+extern int fchmodat (int __fd, __const char *__file, __mode_t mode, int __flag)
+     __THROW __nonnull ((2)) __wur;
+#endif /* Use ATFILE.  */
+
+
 
 /* Set the file creation mask of the current process to MASK,
    and return the old creation mask.  */
@@ -284,6 +316,14 @@ extern __mode_t getumask (void) __THROW;
 extern int mkdir (__const char *__path, __mode_t __mode)
      __THROW __nonnull ((1));
 
+#ifdef __USE_ATFILE
+/* Like mkdir, create a new directory with permission bits MODE.  But
+   interpret relative PATH names relative to the directory associated
+   with FD.  */
+extern int mkdirat (int __fd, __const char *__path, __mode_t __mode)
+     __THROW __nonnull ((2));
+#endif
+
 /* Create a device file named PATH, with permission and special bits MODE
    and device number DEV (which can be constructed from major and minor
    device numbers with the `makedev' macro above).  */
@@ -292,10 +332,26 @@ extern int mknod (__const char *__path, __mode_t __mode, __dev_t __dev)
      __THROW __nonnull ((1));
 #endif
 
+#ifdef __USE_ATFILE
+/* Like mknod, create a new device file with permission bits MODE and
+   device number DEV.  But interpret relative PATH names relative to
+   the directory associated with FD.  */
+extern int mknodat (int __fd, __const char *__path, __mode_t __mode,
+		    __dev_t __dev) __THROW __nonnull ((2));
+#endif
+
 
 /* Create a new FIFO named PATH, with permission bits MODE.  */
 extern int mkfifo (__const char *__path, __mode_t __mode)
      __THROW __nonnull ((1));
+
+#ifdef __USE_ATFILE
+/* Like mkfifo, create a new FIFO with permission bits MODE.  But
+   interpret relative PATH names relative to the directory associated
+   with FD.  */
+extern int mkfifoat (int __fd, __const char *__path, __mode_t __mode)
+     __THROW __nonnull ((2));
+#endif
 
 /* To allow the `struct stat' structure and the file type `mode_t'
    bits to vary without changing shared library major version number,
@@ -327,6 +383,9 @@ extern int __xstat (int __ver, __const char *__filename,
 		    struct stat *__stat_buf) __THROW __nonnull ((2, 3));
 extern int __lxstat (int __ver, __const char *__filename,
 		     struct stat *__stat_buf) __THROW __nonnull ((2, 3));
+extern int __fxstatat (int __ver, int __fildes, __const char *__filename,
+		       struct stat *__stat_buf, int __flag)
+     __THROW __nonnull ((3, 4));
 #else
 # ifdef __REDIRECT_NTH
 extern int __REDIRECT_NTH (__fxstat, (int __ver, int __fildes,
@@ -338,6 +397,10 @@ extern int __REDIRECT_NTH (__xstat, (int __ver, __const char *__filename,
 extern int __REDIRECT_NTH (__lxstat, (int __ver, __const char *__filename,
 				      struct stat *__stat_buf), __lxstat64)
      __nonnull ((2, 3));
+extern int __REDIRECT_NTH (__fxstatat, (int __ver, int __fildes,
+					__const char *__filename,
+					struct stat *__stat_buf, int __flag),
+			   __fxstatat64) __nonnull ((3, 4));
 
 # else
 #  define __fxstat __fxstat64
@@ -353,10 +416,17 @@ extern int __xstat64 (int __ver, __const char *__filename,
 		      struct stat64 *__stat_buf) __THROW __nonnull ((2, 3));
 extern int __lxstat64 (int __ver, __const char *__filename,
 		       struct stat64 *__stat_buf) __THROW __nonnull ((2, 3));
+extern int __fxstatat64 (int __ver, int __fildes, __const char *__filename,
+			 struct stat64 *__stat_buf, int __flag)
+     __THROW __nonnull ((3, 4));
 #endif
 extern int __xmknod (int __ver, __const char *__path, __mode_t __mode,
 		     __dev_t *__dev) __THROW __nonnull ((2, 4));
 
+extern int __xmknodat (int __ver, int __fd, __const char *__path,
+		       __mode_t __mode, __dev_t *__dev)
+     __THROW __nonnull ((3, 5));
+
 #if defined __GNUC__ && __GNUC__ >= 2
 /* Inlined versions of the real stat and mknod functions.  */
 
@@ -380,6 +450,15 @@ __NTH (fstat (int __fd, struct stat *__statbuf))
   return __fxstat (_STAT_VER, __fd, __statbuf);
 }
 
+# ifdef __USE_ATFILE
+extern __inline__ int
+__NTH (fstatat (int __fd, __const char *__filename, struct stat *__statbuf,
+		int __flag))
+{
+  return __fxstatat (_STAT_VER, __fd, __filename, __statbuf, __flag);
+}
+# endif
+
 # if defined __USE_MISC || defined __USE_BSD
 extern __inline__ int
 __NTH (mknod (__const char *__path, __mode_t __mode, __dev_t __dev))
@@ -388,6 +467,15 @@ __NTH (mknod (__const char *__path, __mode_t __mode, __dev_t __dev))
 }
 # endif
 
+# ifdef __USE_ATFILE
+extern __inline__ int
+__NTH (mknodat (int __fd, __const char *__path, __mode_t __mode,
+		__dev_t __dev))
+{
+  return __xmknodat (_MKNOD_VER, __fd, __path, __mode, &__dev);
+}
+# endif
+
 # if defined __USE_LARGEFILE64 \
   && (! defined __USE_FILE_OFFSET64 \
       || (defined __REDIRECT_NTH && defined __OPTIMIZE__))
@@ -410,6 +498,16 @@ __NTH (fstat64 (int __fd, struct stat64 *__statbuf))
 {
   return __fxstat64 (_STAT_VER, __fd, __statbuf);
 }
+
+#  ifdef __USE_GNU
+extern __inline__ int
+__NTH (fstatat64 (int __fd, __const char *__filename, struct stat64 *__statbuf,
+		  int __flag))
+{
+  return __fxstatat64 (_STAT_VER, __fd, __filename, __statbuf, __flag);
+}
+#  endif
+
 # endif
 
 #endif
diff --git a/io/test-lfs.c b/io/test-lfs.c
index a4669c3984..c27af408eb 100644
--- a/io/test-lfs.c
+++ b/io/test-lfs.c
@@ -50,7 +50,7 @@ int fd;
 void
 do_prepare (int argc, char *argv[])
 {
-  char name_len;
+  size_t name_len;
   struct rlimit64 rlim;
 
   name_len = strlen (test_dir);
diff --git a/io/tst-faccessat.c b/io/tst-faccessat.c
new file mode 100644
index 0000000000..48532070a7
--- /dev/null
+++ b/io/tst-faccessat.c
@@ -0,0 +1,212 @@
+/* Test for faccessat function.  */
+
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+
+#include "../test-skeleton.c"
+
+static int dir_fd;
+
+static void
+prepare (void)
+{
+  size_t test_dir_len = strlen (test_dir);
+  static const char dir_name[] = "/tst-faccessat.XXXXXX";
+
+  size_t dirbuflen = test_dir_len + sizeof (dir_name);
+  char *dirbuf = malloc (dirbuflen);
+  if (dirbuf == NULL)
+    {
+      puts ("out of memory");
+      exit (1);
+    }
+
+  snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
+  if (mkdtemp (dirbuf) == NULL)
+    {
+      puts ("cannot create temporary directory");
+      exit (1);
+    }
+
+  add_temp_file (dirbuf);
+
+  dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
+  if (dir_fd == -1)
+    {
+      puts ("cannot open directory");
+      exit (1);
+    }
+}
+
+
+static int
+do_test (void)
+{
+  /* fdopendir takes over the descriptor, make a copy.  */
+  int dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty save the . and .. files.  */
+  DIR *dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("fdopendir failed");
+      return 1;
+    }
+  struct dirent64 *d;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  /* Try to create a file.  */
+  int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
+  if (fd == -1)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("*at functions not supported");
+	  return 0;
+	}
+
+      puts ("file creation failed");
+      return 1;
+    }
+  write (fd, "hello", 5);
+  puts ("file created");
+
+  /* Before closing the file, try using this file descriptor to open
+     another file.  This must fail.  */
+  if (faccessat (fd, "should-not-work", F_OK, AT_EACCESS) != -1)
+    {
+      puts ("faccessat using descriptor for normal file worked");
+      return 1;
+    }
+  if (errno != ENOTDIR)
+    {
+      puts ("\
+error for faccessat using descriptor for normal file not ENOTDIR ");
+      return 1;
+    }
+
+  close (fd);
+
+  int result = 0;
+
+  if (faccessat (dir_fd, "some-file", F_OK, AT_EACCESS))
+    {
+      printf ("faccessat F_OK: %m\n");
+      result = 1;
+    }
+  if (faccessat (dir_fd, "some-file", W_OK, AT_EACCESS))
+    {
+      printf ("faccessat W_OK: %m\n");
+      result = 1;
+    }
+
+  errno = 0;
+  if (faccessat (dir_fd, "some-file", X_OK, AT_EACCESS) == 0
+      || errno != EACCES)
+    {
+      printf ("faccessat X_OK on nonexecutable: %m\n");
+      result = 1;
+    }
+
+  if (fchmodat (dir_fd, "some-file", 0400, 0) != 0)
+    {
+      printf ("fchownat failed: %m\n");
+      return 1;
+    }
+
+  if (faccessat (dir_fd, "some-file", R_OK, AT_EACCESS))
+    {
+      printf ("faccessat R_OK: %m\n");
+      result = 1;
+    }
+
+  errno = 0;
+  if (faccessat (dir_fd, "some-file", W_OK, AT_EACCESS) == 0
+      ? (geteuid () != 0) : (errno != EACCES))
+    {
+      printf ("faccessat W_OK on unwritable file: %m\n");
+      result = 1;
+    }
+
+  /* Create a file descriptor which is closed again right away.  */
+  int dir_fd2 = dup (dir_fd);
+  if (dir_fd2 == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  close (dir_fd2);
+
+  /* With the file descriptor closed the next call must fail.  */
+  if (faccessat (dir_fd2, "some-file", F_OK, AT_EACCESS) != -1)
+    {
+      puts ("faccessat using closed descriptor succeeded");
+      return 1;
+    }
+  if (errno != EBADF)
+    {
+      puts ("faccessat using closed descriptor did not set EBADF");
+      return 1;
+    }
+
+  /* Same with a non-existing file.  */
+  if (faccessat (dir_fd2, "non-existing-file", F_OK, AT_EACCESS) != -1)
+    {
+      puts ("2nd faccessat using closed descriptor succeeded");
+      return 1;
+    }
+  if (errno != EBADF)
+    {
+      puts ("2nd faccessat using closed descriptor did not set EBADF");
+      return 1;
+    }
+
+  if (unlinkat (dir_fd, "some-file", 0) != 0)
+    {
+      puts ("unlinkat failed");
+      result = 1;
+    }
+
+  close (dir_fd);
+
+  fd = faccessat (-1, "some-file", F_OK, AT_EACCESS);
+  if (fd != -1)
+    {
+      puts ("faccessat using -1 descriptor succeeded");
+      return 1;
+    }
+  if (errno != EBADF)
+    {
+      puts ("faccessat using -1 descriptor did not set EBADF");
+      return 1;
+    }
+
+  return result;
+}
diff --git a/io/tst-fchmodat.c b/io/tst-fchmodat.c
new file mode 100644
index 0000000000..bfb75d62e5
--- /dev/null
+++ b/io/tst-fchmodat.c
@@ -0,0 +1,191 @@
+/* Test for fchmodat function.  */
+
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+
+#include "../test-skeleton.c"
+
+static int dir_fd;
+
+static void
+prepare (void)
+{
+  size_t test_dir_len = strlen (test_dir);
+  static const char dir_name[] = "/tst-fchmodat.XXXXXX";
+
+  size_t dirbuflen = test_dir_len + sizeof (dir_name);
+  char *dirbuf = malloc (dirbuflen);
+  if (dirbuf == NULL)
+    {
+      puts ("out of memory");
+      exit (1);
+    }
+
+  snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
+  if (mkdtemp (dirbuf) == NULL)
+    {
+      puts ("cannot create temporary directory");
+      exit (1);
+    }
+
+  add_temp_file (dirbuf);
+
+  dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
+  if (dir_fd == -1)
+    {
+      puts ("cannot open directory");
+      exit (1);
+    }
+}
+
+
+static int
+do_test (void)
+{
+  /* fdopendir takes over the descriptor, make a copy.  */
+  int dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty save the . and .. files.  */
+  DIR *dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("fdopendir failed");
+      return 1;
+    }
+  struct dirent64 *d;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  umask (022);
+
+  /* Try to create a file.  */
+  int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
+  if (fd == -1)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("*at functions not supported");
+	  return 0;
+	}
+
+      puts ("file creation failed");
+      return 1;
+    }
+  write (fd, "hello", 5);
+  puts ("file created");
+
+  struct stat64 st1;
+  if (fstat64 (fd, &st1) != 0)
+    {
+      puts ("fstat64 failed");
+      return 1;
+    }
+
+  /* Before closing the file, try using this file descriptor to open
+     another file.  This must fail.  */
+  if (fchmodat (fd, "some-file", 0400, 0) != -1)
+    {
+      puts ("fchmodat using descriptor for normal file worked");
+      return 1;
+    }
+  if (errno != ENOTDIR)
+    {
+      puts ("\
+error for fchmodat using descriptor for normal file not ENOTDIR ");
+      return 1;
+    }
+
+  close (fd);
+
+  if ((st1.st_mode & 0777) != 0644)
+    {
+      printf ("openat created mode %04o, not 0644\n", (st1.st_mode & 0777));
+      return 1;
+    }
+
+  if (fchmodat (dir_fd, "some-file", 0400, 0) != 0)
+    {
+      puts ("fchownat failed");
+      return 1;
+    }
+
+  struct stat64 st2;
+  if (fstatat64 (dir_fd, "some-file", &st2, 0) != 0)
+    {
+      puts ("fstatat64 failed");
+      return 1;
+    }
+
+  if ((st2.st_mode & 0777) != 0400)
+    {
+      puts ("mode change failed");
+      return 1;
+    }
+
+  if (unlinkat (dir_fd, "some-file", 0) != 0)
+    {
+      puts ("unlinkat failed");
+      return 1;
+    }
+
+  /* Create a file descriptor which is closed again right away.  */
+  int dir_fd2 = dup (dir_fd);
+  if (dir_fd2 == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  close (dir_fd2);
+
+  if (fchmodat (dir_fd2, "some-file", 0400, 0) != -1)
+    {
+      puts ("fchmodat using closed descriptor worked");
+      return 1;
+    }
+  if (errno != EBADF)
+    {
+      puts ("error for fchmodat using closed descriptor not EBADF ");
+      return 1;
+    }
+
+  close (dir_fd);
+
+  if (fchmodat (-1, "some-file", 0400, 0) != -1)
+    {
+      puts ("fchmodat using invalid descriptor worked");
+      return 1;
+    }
+  if (errno != EBADF)
+    {
+      puts ("error for fchmodat using invalid descriptor not EBADF ");
+      return 1;
+    }
+
+  return 0;
+}
diff --git a/io/tst-fchownat.c b/io/tst-fchownat.c
new file mode 100644
index 0000000000..fd32ac9e6b
--- /dev/null
+++ b/io/tst-fchownat.c
@@ -0,0 +1,190 @@
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+
+#include "../test-skeleton.c"
+
+static int dir_fd;
+
+static void
+prepare (void)
+{
+#if _POSIX_CHOWN_RESTRICTED > 0
+  uid_t uid = getuid ();
+  if (uid != 0)
+    {
+      puts ("need root privileges");
+      exit (0);
+    }
+#endif
+
+  size_t test_dir_len = strlen (test_dir);
+  static const char dir_name[] = "/tst-fchownat.XXXXXX";
+
+  size_t dirbuflen = test_dir_len + sizeof (dir_name);
+  char *dirbuf = malloc (dirbuflen);
+  if (dirbuf == NULL)
+    {
+      puts ("out of memory");
+      exit (1);
+    }
+
+  snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
+  if (mkdtemp (dirbuf) == NULL)
+    {
+      puts ("cannot create temporary directory");
+      exit (1);
+    }
+
+  add_temp_file (dirbuf);
+
+  dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
+  if (dir_fd == -1)
+    {
+      puts ("cannot open directory");
+      exit (1);
+    }
+}
+
+
+static int
+do_test (void)
+{
+  /* fdopendir takes over the descriptor, make a copy.  */
+  int dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty safe the . and .. files.  */
+  DIR *dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("fdopendir failed");
+      return 1;
+    }
+  struct dirent64 *d;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  /* Try to create a file.  */
+  int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
+  if (fd == -1)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("*at functions not supported");
+	  return 0;
+	}
+
+      puts ("file creation failed");
+      return 1;
+    }
+  write (fd, "hello", 5);
+  puts ("file created");
+
+  struct stat64 st1;
+  if (fstat64 (fd, &st1) != 0)
+    {
+      puts ("fstat64 failed");
+      return 1;
+    }
+
+  /* Before closing the file, try using this file descriptor to open
+     another file.  This must fail.  */
+  if (fchownat (fd, "some-file", 1, 1, 0) != -1)
+    {
+      puts ("fchownat using descriptor for normal file worked");
+      return 1;
+    }
+  if (errno != ENOTDIR)
+    {
+      puts ("\
+error for fchownat using descriptor for normal file not ENOTDIR ");
+      return 1;
+    }
+
+  close (fd);
+
+  if (fchownat (dir_fd, "some-file", st1.st_uid + 1, st1.st_gid + 1, 0) != 0)
+    {
+      puts ("fchownat failed");
+      return 1;
+    }
+
+  struct stat64 st2;
+  if (fstatat64 (dir_fd, "some-file", &st2, 0) != 0)
+    {
+      puts ("fstatat64 failed");
+      return 1;
+    }
+
+  if (st1.st_uid + 1 != st2.st_uid || st1.st_gid + 1 != st2.st_gid)
+    {
+      puts ("owner change failed");
+      return 1;
+    }
+
+  if (unlinkat (dir_fd, "some-file", 0) != 0)
+    {
+      puts ("unlinkat failed");
+      return 1;
+    }
+
+  /* Create a file descriptor which is closed again right away.  */
+  int dir_fd2 = dup (dir_fd);
+  if (dir_fd2 == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  close (dir_fd2);
+
+  if (fchownat (dir_fd2, "some-file", 1, 1, 0) != -1)
+    {
+      puts ("fchownat using closed descriptor worked");
+      return 1;
+    }
+  if (errno != EBADF)
+    {
+      puts ("error for fchownat using closed descriptor not EBADF ");
+      return 1;
+    }
+
+  close (dir_fd);
+
+  if (fchownat (-1, "some-file", 1, 1, 0) != -1)
+    {
+      puts ("fchownat using invalid descriptor worked");
+      return 1;
+    }
+  if (errno != EBADF)
+    {
+      puts ("error for fchownat using invalid descriptor not EBADF ");
+      return 1;
+    }
+
+  return 0;
+}
diff --git a/io/tst-fcntl.c b/io/tst-fcntl.c
index fed884913c..93ea9b0b02 100644
--- a/io/tst-fcntl.c
+++ b/io/tst-fcntl.c
@@ -42,7 +42,7 @@ static char *name;
 void
 do_prepare (int argc, char *argv[])
 {
-   char name_len;
+   size_t name_len;
 
    name_len = strlen (test_dir);
    name = malloc (name_len + sizeof ("/fcntlXXXXXX"));
diff --git a/io/tst-fstatat.c b/io/tst-fstatat.c
new file mode 100644
index 0000000000..5493102167
--- /dev/null
+++ b/io/tst-fstatat.c
@@ -0,0 +1,188 @@
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+
+#include "../test-skeleton.c"
+
+static int dir_fd;
+
+static void
+prepare (void)
+{
+  size_t test_dir_len = strlen (test_dir);
+  static const char dir_name[] = "/tst-fstatat.XXXXXX";
+
+  size_t dirbuflen = test_dir_len + sizeof (dir_name);
+  char *dirbuf = malloc (dirbuflen);
+  if (dirbuf == NULL)
+    {
+      puts ("out of memory");
+      exit (1);
+    }
+
+  snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
+  if (mkdtemp (dirbuf) == NULL)
+    {
+      puts ("cannot create temporary directory");
+      exit (1);
+    }
+
+  add_temp_file (dirbuf);
+
+  dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
+  if (dir_fd == -1)
+    {
+      puts ("cannot open directory");
+      exit (1);
+    }
+}
+
+
+static int
+do_test (void)
+{
+  /* fdopendir takes over the descriptor, make a copy.  */
+  int dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty safe the . and .. files.  */
+  DIR *dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("fdopendir failed");
+      return 1;
+    }
+  struct dirent64 *d;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  /* Try to create a file.  */
+  int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
+  if (fd == -1)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("*at functions not supported");
+	  return 0;
+	}
+
+      puts ("file creation failed");
+      return 1;
+    }
+  write (fd, "hello", 5);
+  puts ("file created");
+
+  struct stat64 st1;
+
+  /* Before closing the file, try using this file descriptor to open
+     another file.  This must fail.  */
+  if (fstatat64 (fd, "some-file", &st1, 0) != -1)
+    {
+      puts ("fstatatat using descriptor for normal file worked");
+      return 1;
+    }
+  if (errno != ENOTDIR)
+    {
+      puts ("error for fstatat using descriptor for normal file not ENOTDIR ");
+      return 1;
+    }
+
+  if (fstat64 (fd, &st1) != 0)
+    {
+      puts ("fstat64 failed");
+      return 1;
+    }
+
+  close (fd);
+
+  struct stat64 st2;
+  if (fstatat64 (dir_fd, "some-file", &st2, 0) != 0)
+    {
+      puts ("fstatat64 failed");
+      return 1;
+    }
+
+  if (st1.st_dev != st2.st_dev
+      || st1.st_ino != st2.st_ino
+      || st1.st_size != st2.st_size)
+    {
+      puts ("stat results do not match");
+      return 1;
+    }
+
+  if (unlinkat (dir_fd, "some-file", 0) != 0)
+    {
+      puts ("unlinkat failed");
+      return 1;
+    }
+
+  if (fstatat64 (dir_fd, "some-file", &st2, 0) == 0)
+    {
+      puts ("second fstatat64 succeeded");
+      return 1;
+    }
+  if (errno != ENOENT)
+    {
+      puts ("second fstatat64 did not fail with ENOENT");
+      return 1;
+    }
+
+  /* Create a file descriptor which is closed again right away.  */
+  int dir_fd2 = dup (dir_fd);
+  if (dir_fd2 == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  close (dir_fd2);
+
+  if (fstatat64 (dir_fd2, "some-file", &st1, 0) != -1)
+    {
+      puts ("fstatat64 using closed descriptor worked");
+      return 1;
+    }
+  if (errno != EBADF)
+    {
+      puts ("error for fstatat using closed descriptor not EBADF ");
+      return 1;
+    }
+
+  close (dir_fd);
+
+  if (fstatat64 (-1, "some-file", &st1, 0) != -1)
+    {
+      puts ("fstatat64 using invalid descriptor worked");
+      return 1;
+    }
+  if (errno != EBADF)
+    {
+      puts ("error for fstatat using invalid descriptor not EBADF ");
+      return 1;
+    }
+
+  return 0;
+}
diff --git a/io/tst-futimesat.c b/io/tst-futimesat.c
new file mode 100644
index 0000000000..c1e8d93f41
--- /dev/null
+++ b/io/tst-futimesat.c
@@ -0,0 +1,147 @@
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/time.h>
+
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+
+#include "../test-skeleton.c"
+
+static int dir_fd;
+
+static void
+prepare (void)
+{
+  size_t test_dir_len = strlen (test_dir);
+  static const char dir_name[] = "/tst-futimesat.XXXXXX";
+
+  size_t dirbuflen = test_dir_len + sizeof (dir_name);
+  char *dirbuf = malloc (dirbuflen);
+  if (dirbuf == NULL)
+    {
+      puts ("out of memory");
+      exit (1);
+    }
+
+  snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
+  if (mkdtemp (dirbuf) == NULL)
+    {
+      puts ("cannot create temporary directory");
+      exit (1);
+    }
+
+  add_temp_file (dirbuf);
+
+  dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
+  if (dir_fd == -1)
+    {
+      puts ("cannot open directory");
+      exit (1);
+    }
+}
+
+
+static int
+do_test (void)
+{
+  /* fdopendir takes over the descriptor, make a copy.  */
+  int dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty safe the . and .. files.  */
+  DIR *dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("fdopendir failed");
+      return 1;
+    }
+  struct dirent64 *d;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  /* Try to create a file.  */
+  int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
+  if (fd == -1)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("*at functions not supported");
+	  return 0;
+	}
+
+      puts ("file creation failed");
+      return 1;
+    }
+  write (fd, "hello", 5);
+  puts ("file created");
+
+  struct stat64 st1;
+  if (fstat64 (fd, &st1) != 0)
+    {
+      puts ("fstat64 failed");
+      return 1;
+    }
+
+  close (fd);
+
+  struct timeval tv[2];
+  tv[0].tv_sec = st1.st_atime + 1;
+  tv[0].tv_usec = 0;
+  tv[1].tv_sec = st1.st_mtime + 1;
+  tv[1].tv_usec = 0;
+  if (futimesat (dir_fd, "some-file", tv) != 0)
+    {
+      puts ("futimesat failed");
+      return 1;
+    }
+
+  struct stat64 st2;
+  if (fstatat64 (dir_fd, "some-file", &st2, 0) != 0)
+    {
+      puts ("fstatat64 failed");
+      return 1;
+    }
+
+  if (st2.st_mtime != tv[1].tv_sec
+#ifdef _STATBUF_ST_NSEC
+      || st2.st_mtim.tv_nsec != 0
+#endif
+      )
+    {
+      puts ("stat shows different mtime");
+      return 1;
+    }
+
+
+  if (unlinkat (dir_fd, "some-file", 0) != 0)
+    {
+      puts ("unlinkat failed");
+      return 1;
+    }
+
+  close (dir_fd);
+
+  return 0;
+}
diff --git a/io/tst-linkat.c b/io/tst-linkat.c
new file mode 100644
index 0000000000..d63c982751
--- /dev/null
+++ b/io/tst-linkat.c
@@ -0,0 +1,171 @@
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+
+#include "../test-skeleton.c"
+
+static int dir_fd;
+
+static void
+prepare (void)
+{
+  size_t test_dir_len = strlen (test_dir);
+  static const char dir_name[] = "/tst-linkat.XXXXXX";
+
+  size_t dirbuflen = test_dir_len + sizeof (dir_name);
+  char *dirbuf = malloc (dirbuflen);
+  if (dirbuf == NULL)
+    {
+      puts ("out of memory");
+      exit (1);
+    }
+
+  snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
+  if (mkdtemp (dirbuf) == NULL)
+    {
+      puts ("cannot create temporary directory");
+      exit (1);
+    }
+
+  add_temp_file (dirbuf);
+
+  dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
+  if (dir_fd == -1)
+    {
+      puts ("cannot open directory");
+      exit (1);
+    }
+}
+
+
+static int
+do_test (void)
+{
+  /* fdopendir takes over the descriptor, make a copy.  */
+  int dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty safe the . and .. files.  */
+  DIR *dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("fdopendir failed");
+      return 1;
+    }
+  struct dirent64 *d;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  /* Try to create a file.  */
+  int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
+  if (fd == -1)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("*at functions not supported");
+	  return 0;
+	}
+
+      puts ("file creation failed");
+      return 1;
+    }
+  write (fd, "hello", 5);
+  puts ("file created");
+
+  struct stat64 st1;
+  if (fstat64 (fd, &st1) != 0)
+    {
+      puts ("fstat64 failed");
+      return 1;
+    }
+
+  close (fd);
+
+  if (linkat (dir_fd, "some-file", dir_fd, "another-file", 0) != 0)
+    {
+      puts ("symlinkat failed");
+      return 1;
+    }
+
+  struct stat64 st2;
+  if (fstatat64 (dir_fd, "some-file", &st2, 0) != 0)
+    {
+      puts ("fstatat64 failed");
+      return 1;
+    }
+  if (st1.st_dev != st2.st_dev || st1.st_ino != st2.st_ino)
+    {
+      puts ("file changed after symlinkat");
+      return 1;
+    }
+
+  if (fstatat64 (dir_fd, "another-file", &st2, AT_SYMLINK_NOFOLLOW) != 0)
+    {
+      puts ("2nd fstatat64 failed");
+      return 1;
+    }
+  if (S_ISLNK (st2.st_mode))
+    {
+      puts ("2nd fstatat64 shows file is a symlink");
+      return 1;
+    }
+  if (st1.st_dev != st2.st_dev
+      || st1.st_ino != st2.st_ino
+      || st1.st_size != st2.st_size)
+    {
+      puts ("stat results for linked file do not match");
+      return 1;
+    }
+
+  if (fstatat64 (dir_fd, "another-file", &st2, 0) != 0)
+    {
+      puts ("3rd fstatat64 failed");
+      return 1;
+    }
+  if (st1.st_dev != st2.st_dev
+      || st1.st_ino != st2.st_ino
+      || st1.st_size != st2.st_size)
+    {
+      puts ("stat results do not match");
+      return 1;
+    }
+
+  if (unlinkat (dir_fd, "another-file", 0) != 0)
+    {
+      puts ("unlinkat failed");
+      return 1;
+    }
+  if (unlinkat (dir_fd, "some-file", 0) != 0)
+    {
+      puts ("2nd unlinkat failed");
+      return 1;
+    }
+
+  close (dir_fd);
+
+  return 0;
+}
diff --git a/io/tst-mkdirat.c b/io/tst-mkdirat.c
new file mode 100644
index 0000000000..3efa4622ef
--- /dev/null
+++ b/io/tst-mkdirat.c
@@ -0,0 +1,162 @@
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+
+#include "../test-skeleton.c"
+
+static int dir_fd;
+
+static void
+prepare (void)
+{
+  size_t test_dir_len = strlen (test_dir);
+  static const char dir_name[] = "/tst-mkdirat.XXXXXX";
+
+  size_t dirbuflen = test_dir_len + sizeof (dir_name);
+  char *dirbuf = malloc (dirbuflen);
+  if (dirbuf == NULL)
+    {
+      puts ("out of memory");
+      exit (1);
+    }
+
+  snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
+  if (mkdtemp (dirbuf) == NULL)
+    {
+      puts ("cannot create temporary directory");
+      exit (1);
+    }
+
+  add_temp_file (dirbuf);
+
+  dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
+  if (dir_fd == -1)
+    {
+      puts ("cannot open directory");
+      exit (1);
+    }
+}
+
+
+static int
+do_test (void)
+{
+  /* fdopendir takes over the descriptor, make a copy.  */
+  int dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty safe the . and .. files.  */
+  DIR *dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("fdopendir failed");
+      return 1;
+    }
+  struct dirent64 *d;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  /* Create a new directory.  */
+  int e = mkdirat (dir_fd, "some-dir", 0777);
+  if (e == -1)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("*at functions not supported");
+	  return 0;
+	}
+
+      puts ("directory creation failed");
+      return 1;
+    }
+
+  struct stat64 st1;
+  if (fstatat64 (dir_fd, "some-dir", &st1, 0) != 0)
+    {
+      puts ("fstat64 failed");
+      return 1;
+    }
+  if (!S_ISDIR (st1.st_mode))
+    {
+      puts ("mkdirat did not create a directory");
+      return 1;
+    }
+
+  dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("2nd fdopendir failed");
+      return 1;
+    }
+  bool has_some_dir = false;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, "some-dir") == 0)
+      {
+	has_some_dir = true;
+#ifdef _DIRENT_HAVE_D_TYPE
+	if (d->d_type != DT_UNKNOWN && d->d_type != DT_DIR)
+	  {
+	    puts ("d_type for some-dir wrong");
+	    return 1;
+	  }
+#endif
+      }
+    else if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  if (!has_some_dir)
+    {
+      puts ("some-dir not in directory list");
+      return 1;
+    }
+
+  if (unlinkat (dir_fd, "some-dir", AT_REMOVEDIR) != 0)
+    {
+      puts ("unlinkat failed");
+      return 1;
+    }
+
+  close (dir_fd);
+
+  return 0;
+}
diff --git a/io/tst-mkfifoat.c b/io/tst-mkfifoat.c
new file mode 100644
index 0000000000..2bf29f63af
--- /dev/null
+++ b/io/tst-mkfifoat.c
@@ -0,0 +1,162 @@
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+
+#include "../test-skeleton.c"
+
+static int dir_fd;
+
+static void
+prepare (void)
+{
+  size_t test_dir_len = strlen (test_dir);
+  static const char dir_name[] = "/tst-mkfifoat.XXXXXX";
+
+  size_t dirbuflen = test_dir_len + sizeof (dir_name);
+  char *dirbuf = malloc (dirbuflen);
+  if (dirbuf == NULL)
+    {
+      puts ("out of memory");
+      exit (1);
+    }
+
+  snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
+  if (mkdtemp (dirbuf) == NULL)
+    {
+      puts ("cannot create temporary directory");
+      exit (1);
+    }
+
+  add_temp_file (dirbuf);
+
+  dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
+  if (dir_fd == -1)
+    {
+      puts ("cannot open directory");
+      exit (1);
+    }
+}
+
+
+static int
+do_test (void)
+{
+  /* fdopendir takes over the descriptor, make a copy.  */
+  int dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty safe the . and .. files.  */
+  DIR *dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("fdopendir failed");
+      return 1;
+    }
+  struct dirent64 *d;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  /* Create a new directory.  */
+  int e = mkfifoat (dir_fd, "some-fifo", 0777);
+  if (e == -1)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("*at functions not supported");
+	  return 0;
+	}
+
+      puts ("fifo creation failed");
+      return 1;
+    }
+
+  struct stat64 st1;
+  if (fstatat64 (dir_fd, "some-fifo", &st1, 0) != 0)
+    {
+      puts ("fstat64 failed");
+      return 1;
+    }
+  if (!S_ISFIFO (st1.st_mode))
+    {
+      puts ("mkfifoat did not create FIFO");
+      return 1;
+    }
+
+  dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("2nd fdopendir failed");
+      return 1;
+    }
+  bool has_some_fifo = false;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, "some-fifo") == 0)
+      {
+	has_some_fifo = true;
+#ifdef _DIRENT_HAVE_D_TYPE
+	if (d->d_type != DT_UNKNOWN && d->d_type != DT_FIFO)
+	  {
+	    puts ("d_type for some-fifo wrong");
+	    return 1;
+	  }
+#endif
+      }
+    else if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  if (!has_some_fifo)
+    {
+      puts ("some-fifo not in directory list");
+      return 1;
+    }
+
+  if (unlinkat (dir_fd, "some-fifo", 0) != 0)
+    {
+      puts ("unlinkat failed");
+      return 1;
+    }
+
+  close (dir_fd);
+
+  return 0;
+}
diff --git a/io/tst-mknodat.c b/io/tst-mknodat.c
new file mode 100644
index 0000000000..9158c0dfd4
--- /dev/null
+++ b/io/tst-mknodat.c
@@ -0,0 +1,162 @@
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+
+#include "../test-skeleton.c"
+
+static int dir_fd;
+
+static void
+prepare (void)
+{
+  size_t test_dir_len = strlen (test_dir);
+  static const char dir_name[] = "/tst-mknodat.XXXXXX";
+
+  size_t dirbuflen = test_dir_len + sizeof (dir_name);
+  char *dirbuf = malloc (dirbuflen);
+  if (dirbuf == NULL)
+    {
+      puts ("out of memory");
+      exit (1);
+    }
+
+  snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
+  if (mkdtemp (dirbuf) == NULL)
+    {
+      puts ("cannot create temporary directory");
+      exit (1);
+    }
+
+  add_temp_file (dirbuf);
+
+  dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
+  if (dir_fd == -1)
+    {
+      puts ("cannot open directory");
+      exit (1);
+    }
+}
+
+
+static int
+do_test (void)
+{
+  /* fdopendir takes over the descriptor, make a copy.  */
+  int dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty safe the . and .. files.  */
+  DIR *dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("fdopendir failed");
+      return 1;
+    }
+  struct dirent64 *d;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  /* Create a new directory.  */
+  int e = mknodat (dir_fd, "some-sock", 0777 | S_IFSOCK, 0);
+  if (e == -1)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("*at functions not supported");
+	  return 0;
+	}
+
+      puts ("socket creation failed");
+      return 1;
+    }
+
+  struct stat64 st1;
+  if (fstatat64 (dir_fd, "some-sock", &st1, 0) != 0)
+    {
+      puts ("fstat64 failed");
+      return 1;
+    }
+  if (!S_ISSOCK (st1.st_mode))
+    {
+      puts ("mknodat did not create a Unix domain socket");
+      return 1;
+    }
+
+  dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("2nd fdopendir failed");
+      return 1;
+    }
+  bool has_some_sock = false;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, "some-sock") == 0)
+      {
+	has_some_sock = true;
+#ifdef _DIRENT_HAVE_D_TYPE
+	if (d->d_type != DT_UNKNOWN && d->d_type != DT_SOCK)
+	  {
+	    puts ("d_type for some-sock wrong");
+	    return 1;
+	  }
+#endif
+      }
+    else if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  if (!has_some_sock)
+    {
+      puts ("some-sock not in directory list");
+      return 1;
+    }
+
+  if (unlinkat (dir_fd, "some-sock", 0) != 0)
+    {
+      puts ("unlinkat failed");
+      return 1;
+    }
+
+  close (dir_fd);
+
+  return 0;
+}
diff --git a/io/tst-openat.c b/io/tst-openat.c
new file mode 100644
index 0000000000..0ceb745880
--- /dev/null
+++ b/io/tst-openat.c
@@ -0,0 +1,209 @@
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+
+#include "../test-skeleton.c"
+
+static int dir_fd;
+
+static void
+prepare (void)
+{
+  size_t test_dir_len = strlen (test_dir);
+  static const char dir_name[] = "/tst-openat.XXXXXX";
+
+  size_t dirbuflen = test_dir_len + sizeof (dir_name);
+  char *dirbuf = malloc (dirbuflen);
+  if (dirbuf == NULL)
+    {
+      puts ("out of memory");
+      exit (1);
+    }
+
+  snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
+  if (mkdtemp (dirbuf) == NULL)
+    {
+      puts ("cannot create temporary directory");
+      exit (1);
+    }
+
+  add_temp_file (dirbuf);
+
+  dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
+  if (dir_fd == -1)
+    {
+      puts ("cannot open directory");
+      exit (1);
+    }
+}
+
+
+static int
+do_test (void)
+{
+  /* fdopendir takes over the descriptor, make a copy.  */
+  int dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty safe the . and .. files.  */
+  DIR *dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("fdopendir failed");
+      return 1;
+    }
+  struct dirent64 *d;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  /* Try to create a file.  */
+  int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
+  if (fd == -1)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("*at functions not supported");
+	  return 0;
+	}
+
+      puts ("file creation failed");
+      return 1;
+    }
+  write (fd, "hello", 5);
+
+  /* Before closing the file, try using this file descriptor to open
+     another file.  This must fail.  */
+  int fd2 = openat (fd, "should-not-work", O_CREAT|O_RDWR, 0666);
+  if (fd2 != -1)
+    {
+      puts ("openat using descriptor for normal file worked");
+      return 1;
+    }
+  if (errno != ENOTDIR)
+    {
+      puts ("error for openat using descriptor for normal file not ENOTDIR ");
+      return 1;
+    }
+
+  close (fd);
+  puts ("file created");
+
+  /* fdopendir takes over the descriptor, make a copy.  */
+  dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("2nd lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty safe the . and .. files.  */
+  dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("fdopendir failed");
+      return 1;
+    }
+  bool seen_file = false;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	if (strcmp (d->d_name, "some-file") != 0)
+	  {
+	    printf ("temp directory contains file \"%s\"\n", d->d_name);
+	    return 1;
+	  }
+
+	seen_file = true;
+      }
+  closedir (dir);
+
+  if (!seen_file)
+    {
+      puts ("file not created in correct directory");
+      return 1;
+    }
+
+  int cwdfd = open (".", O_RDONLY | O_DIRECTORY);
+  if (cwdfd == -1)
+    {
+      puts ("cannot get descriptor for cwd");
+      return 1;
+    }
+
+  if (fchdir (dir_fd) != 0)
+    {
+      puts ("1st fchdir failed");
+      return 1;
+    }
+
+  if (unlink ("some-file") != 0)
+    {
+      puts ("unlink failed");
+      return 1;
+    }
+
+  if (fchdir (cwdfd) != 0)
+    {
+      puts ("2nd fchdir failed");
+      return 1;
+    }
+
+  close (dir_fd);
+  close (cwdfd);
+
+  /* With the file descriptor closed the next call must fail.  */
+  fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
+  if (fd != -1)
+    {
+      puts ("openat using closed descriptor succeeded");
+      return 1;
+    }
+  if (errno != EBADF)
+    {
+      puts ("openat using closed descriptor did not set EBADF");
+      return 1;
+    }
+
+  fd = openat (-1, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
+  if (fd != -1)
+    {
+      puts ("openat using -1 descriptor succeeded");
+      return 1;
+    }
+  if (errno != EBADF)
+    {
+      puts ("openat using -1 descriptor did not set EBADF");
+      return 1;
+    }
+
+  return 0;
+}
diff --git a/io/tst-readlinkat.c b/io/tst-readlinkat.c
new file mode 100644
index 0000000000..891b6e6817
--- /dev/null
+++ b/io/tst-readlinkat.c
@@ -0,0 +1,136 @@
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+
+#include "../test-skeleton.c"
+
+static int dir_fd;
+
+static void
+prepare (void)
+{
+  size_t test_dir_len = strlen (test_dir);
+  static const char dir_name[] = "/tst-symlinkat.XXXXXX";
+
+  size_t dirbuflen = test_dir_len + sizeof (dir_name);
+  char *dirbuf = malloc (dirbuflen);
+  if (dirbuf == NULL)
+    {
+      puts ("out of memory");
+      exit (1);
+    }
+
+  snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
+  if (mkdtemp (dirbuf) == NULL)
+    {
+      puts ("cannot create temporary directory");
+      exit (1);
+    }
+
+  add_temp_file (dirbuf);
+
+  dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
+  if (dir_fd == -1)
+    {
+      puts ("cannot open directory");
+      exit (1);
+    }
+}
+
+
+static int
+do_test (void)
+{
+  /* fdopendir takes over the descriptor, make a copy.  */
+  int dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty safe the . and .. files.  */
+  DIR *dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("fdopendir failed");
+      return 1;
+    }
+  struct dirent64 *d;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  static const char symlinkcontent[] = "some-file";
+  if (symlinkat (symlinkcontent, dir_fd, "another-file") != 0)
+    {
+      puts ("symlinkat failed");
+      return 1;
+    }
+
+  struct stat64 st2;
+  if (fstatat64 (dir_fd, "another-file", &st2, AT_SYMLINK_NOFOLLOW) != 0)
+    {
+      puts ("fstatat64 failed");
+      return 1;
+    }
+  if (!S_ISLNK (st2.st_mode))
+    {
+      puts ("2nd fstatat64 does not show file is a symlink");
+      return 1;
+    }
+
+  if (fstatat64 (dir_fd, symlinkcontent, &st2, AT_SYMLINK_NOFOLLOW) == 0)
+    {
+      puts ("2nd fstatat64 succeeded");
+      return 1;
+    }
+
+  char buf[100];
+  int n = readlinkat (dir_fd, "another-file", buf, sizeof (buf));
+  if (n == -1)
+    {
+      puts ("readlinkat failed");
+      return 1;
+    }
+  if (n != sizeof (symlinkcontent) - 1)
+    {
+      printf ("readlinkat returned %d, expected %zu\n",
+	      n, sizeof (symlinkcontent) - 1);
+      return 1;
+    }
+  if (strncmp (buf, symlinkcontent, n) != 0)
+    {
+      puts ("readlinkat retrieved wrong link content");
+      return 1;
+    }
+
+  if (unlinkat (dir_fd, "another-file", 0) != 0)
+    {
+      puts ("unlinkat failed");
+      return 1;
+    }
+
+  close (dir_fd);
+
+  return 0;
+}
diff --git a/io/tst-renameat.c b/io/tst-renameat.c
new file mode 100644
index 0000000000..a7c0ec16c4
--- /dev/null
+++ b/io/tst-renameat.c
@@ -0,0 +1,225 @@
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+
+#include "../test-skeleton.c"
+
+static int dir_fd;
+
+static void
+prepare (void)
+{
+  size_t test_dir_len = strlen (test_dir);
+  static const char dir_name[] = "/tst-renameat.XXXXXX";
+
+  size_t dirbuflen = test_dir_len + sizeof (dir_name);
+  char *dirbuf = malloc (dirbuflen);
+  if (dirbuf == NULL)
+    {
+      puts ("out of memory");
+      exit (1);
+    }
+
+  snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
+  if (mkdtemp (dirbuf) == NULL)
+    {
+      puts ("cannot create temporary directory");
+      exit (1);
+    }
+
+  add_temp_file (dirbuf);
+
+  dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
+  if (dir_fd == -1)
+    {
+      puts ("cannot open directory");
+      exit (1);
+    }
+}
+
+
+static int
+do_test (void)
+{
+  /* fdopendir takes over the descriptor, make a copy.  */
+  int dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty safe the . and .. files.  */
+  DIR *dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("fdopendir failed");
+      return 1;
+    }
+  struct dirent64 *d;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  /* Try to create a file.  */
+  int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
+  if (fd == -1)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("*at functions not supported");
+	  return 0;
+	}
+
+      puts ("file creation failed");
+      return 1;
+    }
+  write (fd, "hello", 5);
+  puts ("file created");
+
+  struct stat64 st1;
+  if (fstat64 (fd, &st1) != 0)
+    {
+      puts ("fstat64 failed");
+      return 1;
+    }
+
+  /* Using a descriptor for a normal file must fail.  */
+  if (renameat (fd, "some-file", dir_fd, "another-file") == 0)
+    {
+      puts ("renameat with normal file descriptor succeeded");
+      return 1;
+    }
+  if (errno != ENOTDIR)
+    {
+      puts ("error for renameat with normal file descriptor not ENOTDIR");
+      return 1;
+    }
+
+  if (renameat (dir_fd, "some-file", fd, "another-file") == 0)
+    {
+      puts ("2nd renameat with normal file descriptor succeeded");
+      return 1;
+    }
+  if (errno != ENOTDIR)
+    {
+      puts ("error for 2nd renameat with normal file descriptor not ENOTDIR");
+      return 1;
+    }
+
+  close (fd);
+
+  if (renameat (dir_fd, "some-file", dir_fd, "another-file") != 0)
+    {
+      puts ("renameat failed");
+      return 1;
+    }
+
+  struct stat64 st2;
+  if (fstatat64 (dir_fd, "some-file", &st2, 0) == 0)
+    {
+      puts ("fstatat64 succeeded");
+      return 1;
+    }
+  if (errno != ENOENT)
+    {
+      puts ("fstatat64 did not fail with ENOENT");
+      return 1;
+    }
+
+  if (fstatat64 (dir_fd, "another-file", &st2, 0) != 0)
+    {
+      puts ("2nd fstatat64 failed");
+      return 1;
+    }
+
+  if (st1.st_dev != st2.st_dev
+      || st1.st_ino != st2.st_ino
+      || st1.st_size != st2.st_size)
+    {
+      puts ("stat results do not match");
+      return 1;
+    }
+
+  /* Create a file descriptor which is closed again right away.  */
+  int dir_fd2 = dup (dir_fd);
+  if (dir_fd2 == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  close (dir_fd2);
+
+  if (renameat (dir_fd2, "another-file", dir_fd, "some-file") == 0)
+    {
+      puts ("renameat with closed file descriptor succeeded");
+      return 1;
+    }
+  if (errno != EBADF)
+    {
+      puts ("error for renameat with closed file descriptor not EBADF");
+      return 1;
+    }
+
+  if (renameat (dir_fd, "another-file", dir_fd2, "some-file") == 0)
+    {
+      puts ("2nd renameat with closed file descriptor succeeded");
+      return 1;
+    }
+  if (errno != EBADF)
+    {
+      puts ("error for 2nd renameat with closed file descriptor not EBADF");
+      return 1;
+    }
+
+  if (unlinkat (dir_fd, "another-file", 0) != 0)
+    {
+      puts ("unlinkat failed");
+      return 1;
+    }
+
+  if (renameat (-1, "another-file", dir_fd, "some-file") == 0)
+    {
+      puts ("renameat with invalid file descriptor succeeded");
+      return 1;
+    }
+  if (errno != EBADF)
+    {
+      puts ("error for renameat with invalid file descriptor not EBADF");
+      return 1;
+    }
+
+  if (renameat (dir_fd, "another-file", -1, "some-file") == 0)
+    {
+      puts ("2nd renameat with invalid file descriptor succeeded");
+      return 1;
+    }
+  if (errno != EBADF)
+    {
+      puts ("error for 2nd renameat with invalid file descriptor not EBADF");
+      return 1;
+    }
+
+  close (dir_fd);
+
+  return 0;
+}
diff --git a/io/tst-symlinkat.c b/io/tst-symlinkat.c
new file mode 100644
index 0000000000..1e98588fc8
--- /dev/null
+++ b/io/tst-symlinkat.c
@@ -0,0 +1,164 @@
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+
+#include "../test-skeleton.c"
+
+static int dir_fd;
+
+static void
+prepare (void)
+{
+  size_t test_dir_len = strlen (test_dir);
+  static const char dir_name[] = "/tst-symlinkat.XXXXXX";
+
+  size_t dirbuflen = test_dir_len + sizeof (dir_name);
+  char *dirbuf = malloc (dirbuflen);
+  if (dirbuf == NULL)
+    {
+      puts ("out of memory");
+      exit (1);
+    }
+
+  snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
+  if (mkdtemp (dirbuf) == NULL)
+    {
+      puts ("cannot create temporary directory");
+      exit (1);
+    }
+
+  add_temp_file (dirbuf);
+
+  dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
+  if (dir_fd == -1)
+    {
+      puts ("cannot open directory");
+      exit (1);
+    }
+}
+
+
+static int
+do_test (void)
+{
+  /* fdopendir takes over the descriptor, make a copy.  */
+  int dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty safe the . and .. files.  */
+  DIR *dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("fdopendir failed");
+      return 1;
+    }
+  struct dirent64 *d;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  /* Try to create a file.  */
+  int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
+  if (fd == -1)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("*at functions not supported");
+	  return 0;
+	}
+
+      puts ("file creation failed");
+      return 1;
+    }
+  write (fd, "hello", 5);
+  puts ("file created");
+
+  struct stat64 st1;
+  if (fstat64 (fd, &st1) != 0)
+    {
+      puts ("fstat64 failed");
+      return 1;
+    }
+
+  close (fd);
+
+  if (symlinkat ("some-file", dir_fd, "another-file") != 0)
+    {
+      puts ("symlinkat failed");
+      return 1;
+    }
+
+  struct stat64 st2;
+  if (fstatat64 (dir_fd, "some-file", &st2, 0) != 0)
+    {
+      puts ("fstatat64 failed");
+      return 1;
+    }
+  if (st1.st_dev != st2.st_dev || st1.st_ino != st2.st_ino)
+    {
+      puts ("file changed after symlinkat");
+      return 1;
+    }
+
+  if (fstatat64 (dir_fd, "another-file", &st2, AT_SYMLINK_NOFOLLOW) != 0)
+    {
+      puts ("2nd fstatat64 failed");
+      return 1;
+    }
+  if (!S_ISLNK (st2.st_mode))
+    {
+      puts ("2nd fstatat64 does not show file is a symlink");
+      return 1;
+    }
+
+  if (fstatat64 (dir_fd, "another-file", &st2, 0) != 0)
+    {
+      puts ("3rd fstatat64 failed");
+      return 1;
+    }
+  if (st1.st_dev != st2.st_dev
+      || st1.st_ino != st2.st_ino
+      || st1.st_size != st2.st_size)
+    {
+      puts ("stat results do not match");
+      return 1;
+    }
+
+  if (unlinkat (dir_fd, "another-file", 0) != 0)
+    {
+      puts ("unlinkat failed");
+      return 1;
+    }
+  if (unlinkat (dir_fd, "some-file", 0) != 0)
+    {
+      puts ("2nd unlinkat failed");
+      return 1;
+    }
+
+  close (dir_fd);
+
+  return 0;
+}
diff --git a/io/tst-ttyname_r.c b/io/tst-ttyname_r.c
new file mode 100644
index 0000000000..8e2f30c972
--- /dev/null
+++ b/io/tst-ttyname_r.c
@@ -0,0 +1,42 @@
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+
+static void do_prepare (void);
+#define PREPARE(argc, argv) do_prepare ()
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+#include <test-skeleton.c>
+
+static int temp_fd;
+
+static void
+do_prepare (void)
+{
+  char *temp_file;
+  temp_fd = create_temp_file ("tst-ttyname_r.", &temp_file);
+  if (temp_fd == -1)
+    error (1, errno, "cannot create temporary file");
+}
+
+static int
+do_test (void)
+{
+  int ret = 0;
+  char buf[sysconf (_SC_TTY_NAME_MAX) + 1];
+  int res = ttyname_r (-1, buf, sizeof (buf));
+  if (res != EBADF)
+    {
+      printf ("1st ttyname_r returned with res %d\n", res);
+      ret++;
+    }
+  res = ttyname_r (temp_fd, buf, sizeof (buf));
+  if (res != ENOTTY)
+    {
+      printf ("2nd ttyname_r returned with res %d\n", res);
+      ret++;
+    }
+  return ret;
+}
diff --git a/io/tst-unlinkat.c b/io/tst-unlinkat.c
new file mode 100644
index 0000000000..c25443c27f
--- /dev/null
+++ b/io/tst-unlinkat.c
@@ -0,0 +1,178 @@
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+
+#include "../test-skeleton.c"
+
+static int dir_fd;
+
+static void
+prepare (void)
+{
+  size_t test_dir_len = strlen (test_dir);
+  static const char dir_name[] = "/tst-unlinkat.XXXXXX";
+
+  size_t dirbuflen = test_dir_len + sizeof (dir_name);
+  char *dirbuf = malloc (dirbuflen);
+  if (dirbuf == NULL)
+    {
+      puts ("out of memory");
+      exit (1);
+    }
+
+  snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
+  if (mkdtemp (dirbuf) == NULL)
+    {
+      puts ("cannot create temporary directory");
+      exit (1);
+    }
+
+  add_temp_file (dirbuf);
+
+  dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
+  if (dir_fd == -1)
+    {
+      puts ("cannot open directory");
+      exit (1);
+    }
+}
+
+
+static int
+do_test (void)
+{
+  /* fdopendir takes over the descriptor, make a copy.  */
+  int dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("1st lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty safe the . and .. files.  */
+  DIR *dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("fdopendir failed");
+      return 1;
+    }
+  struct dirent64 *d;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	printf ("temp directory contains file \"%s\"\n", d->d_name);
+	return 1;
+      }
+  closedir (dir);
+
+  /* Try to create a file.  */
+  int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
+  if (fd == -1)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("*at functions not supported");
+	  return 0;
+	}
+
+      puts ("file creation failed");
+      return 1;
+    }
+  write (fd, "hello", 5);
+  close (fd);
+  puts ("file created");
+
+  /* fdopendir takes over the descriptor, make a copy.  */
+  dupfd = dup (dir_fd);
+  if (dupfd == -1)
+    {
+      puts ("2nd dup failed");
+      return 1;
+    }
+  if (lseek (dupfd, 0, SEEK_SET) != 0)
+    {
+      puts ("2nd lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty safe the . and .. files.  */
+  dir = fdopendir (dupfd);
+  if (dir == NULL)
+    {
+      puts ("2nd fdopendir failed");
+      return 1;
+    }
+  bool seen_file = false;
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	if (strcmp (d->d_name, "some-file") != 0)
+	  {
+	    printf ("temp directory contains file \"%s\"\n", d->d_name);
+	    return 1;
+	  }
+
+	seen_file = true;
+      }
+  closedir (dir);
+
+  if (!seen_file)
+    {
+      puts ("file not created in correct directory");
+      return 1;
+    }
+
+  /* Remove the file now.  */
+  if (unlinkat (dir_fd, "some-file", 0) != 0)
+    {
+      puts ("unlinkat failed");
+      return 1;
+    }
+
+  /* We won't need dir_fd anymore after this, so use it.  */
+  if (lseek (dir_fd, 0, SEEK_SET) != 0)
+    {
+      puts ("3rd lseek failed");
+      return 1;
+    }
+
+  /* The directory should be empty safe the . and .. files.  */
+  dir = fdopendir (dir_fd);
+  if (dir == NULL)
+    {
+      puts ("3rd fdopendir failed");
+      return 1;
+    }
+  while ((d = readdir64 (dir)) != NULL)
+    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
+      {
+	if (strcmp (d->d_name, "some-file") == 0)
+	  {
+	    puts ("some-file not removed");
+	    return 1;
+	  }
+	else
+	  {
+	    printf ("temp directory contains file \"%s\"\n", d->d_name);
+	    return 1;
+	  }
+      }
+  closedir (dir);
+
+  return 0;
+}
diff --git a/io/ttyname.c b/io/ttyname.c
new file mode 100644
index 0000000000..088ba918a8
--- /dev/null
+++ b/io/ttyname.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 1991, 1995, 1996, 1997 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 <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+
+
+char *__ttyname = NULL;
+
+/* Return the pathname of the terminal FD is open on, or NULL on errors.
+   The returned storage is good only until the next call to this function.  */
+char *
+ttyname (fd)
+     int fd;
+{
+  __set_errno (ENOSYS);
+  return NULL;
+}
+
+
+stub_warning (ttyname)
+#include <stub-tag.h>
diff --git a/io/ttyname_r.c b/io/ttyname_r.c
new file mode 100644
index 0000000000..14c1209096
--- /dev/null
+++ b/io/ttyname_r.c
@@ -0,0 +1,37 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 1998 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 <errno.h>
+#include <unistd.h>
+
+
+/* Store at most BUFLEN characters the pathname of the terminal FD is
+   open on in BUF.  Return 0 on success,  otherwise an error number.  */
+int
+__ttyname_r (fd, buf, buflen)
+     int fd;
+     char *buf;
+     size_t buflen;
+{
+  __set_errno (ENOSYS);
+  return ENOSYS;
+}
+weak_alias (__ttyname_r, ttyname_r)
+
+stub_warning (ttyname_r)
+#include <stub-tag.h>
diff --git a/io/umask.c b/io/umask.c
new file mode 100644
index 0000000000..588d57e1ce
--- /dev/null
+++ b/io/umask.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 1991, 1995, 1996, 1997 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 <sys/stat.h>
+#include <errno.h>
+#include <sys/types.h>
+
+/* Set the file creation mask to MASK, returning the old mask.  */
+mode_t
+__umask (mask)
+     mode_t mask;
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (umask)
+
+weak_alias (__umask, umask)
+#include <stub-tag.h>
diff --git a/io/unlink.c b/io/unlink.c
new file mode 100644
index 0000000000..1ec6d87ae1
--- /dev/null
+++ b/io/unlink.c
@@ -0,0 +1,41 @@
+/* Copyright (C) 1991, 1995, 1996, 1997 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 <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+
+
+/* Remove the link named NAME.  */
+int
+__unlink (name)
+     const char *name;
+{
+  if (name == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (unlink)
+
+weak_alias (__unlink, unlink)
+#include <stub-tag.h>
diff --git a/io/unlinkat.c b/io/unlinkat.c
new file mode 100644
index 0000000000..f9a08b9903
--- /dev/null
+++ b/io/unlinkat.c
@@ -0,0 +1,49 @@
+/* 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 <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <unistd.h>
+
+
+/* Remove the link named NAME.  */
+int
+unlinkat (fd, name, flag)
+     int fd;
+     const char *name;
+     int flag;
+{
+  if (name == NULL || (flag & AT_REMOVEDIR) != 0)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (fd < 0 && fd != AT_FDCWD)
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (unlinkat)
+
+#include <stub-tag.h>
diff --git a/io/utime.c b/io/utime.c
new file mode 100644
index 0000000000..3a3bcc38cc
--- /dev/null
+++ b/io/utime.c
@@ -0,0 +1,43 @@
+/* Copyright (C) 1991,95,96,97,2002 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 <errno.h>
+#include <stddef.h>
+#include <utime.h>
+
+
+/* Set the access and modification times of FILE to those given in TIMES.
+   If TIMES is NULL, set them to the current time.  */
+int
+utime (file, times)
+     const char *file;
+     const struct utimbuf *times;
+{
+  if (file == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+libc_hidden_def (utime)
+
+stub_warning (utime)
+#include <stub-tag.h>
diff --git a/io/write.c b/io/write.c
new file mode 100644
index 0000000000..928d43ced2
--- /dev/null
+++ b/io/write.c
@@ -0,0 +1,50 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 2002 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 <sysdep.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stddef.h>
+
+/* Write NBYTES of BUF to FD.  Return the number written, or -1.  */
+ssize_t
+__libc_write (int fd, const void *buf, size_t nbytes)
+{
+  if (nbytes == 0)
+    return 0;
+  if (fd < 0)
+    {
+      __set_errno (EBADF);
+      return -1;
+    }
+  if (buf == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+libc_hidden_def (__libc_write)
+stub_warning (write)
+
+weak_alias (__libc_write, __write)
+libc_hidden_weak (__write)
+weak_alias (__libc_write, write)
+#include <stub-tag.h>
diff --git a/io/xmknod.c b/io/xmknod.c
new file mode 100644
index 0000000000..c2daa46e07
--- /dev/null
+++ b/io/xmknod.c
@@ -0,0 +1,48 @@
+/* Copyright (C) 1991,1993,1995-1997,2002,2005 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 <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+/* Create a device file named PATH, with permission and special bits MODE
+   and device number DEV (which can be constructed from major and minor
+   device numbers with the `makedev' macro above).  */
+int
+__xmknod (int vers, const char *path, mode_t mode, dev_t *dev)
+{
+  if (vers != _MKNOD_VER)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (path == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (__xmknod)
+
+weak_alias (__xmknod, _xmknod)
+libc_hidden_def (__xmknod)
+#include <stub-tag.h>
diff --git a/io/xmknodat.c b/io/xmknodat.c
new file mode 100644
index 0000000000..48dc1b2630
--- /dev/null
+++ b/io/xmknodat.c
@@ -0,0 +1,64 @@
+/* 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 <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+/* Create a device file named PATH relative to FD, with permission and
+   special bits MODE and device number DEV (which can be constructed
+   from major and minor device numbers with the `makedev' macro
+   above).  */
+int
+__xmknodat (int vers, int fd, const char *path, mode_t mode, dev_t *dev)
+{
+  if (vers != _MKNOD_VER)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (path == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (fd != AT_FDCWD && path[0] != '/')
+    {
+      /* Check FD is associated with a directory.  */
+      struct stat64 st;
+      if (__fxstat64 (_STAT_VER, fd, &st) != 0)
+	return -1;
+
+      if (!S_ISDIR (st.st_mode))
+	{
+	  __set_errno (ENOTDIR);
+	  return -1;
+	}
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (__xmknodat)
+
+libc_hidden_def (__xmknodat)
+#include <stub-tag.h>
diff --git a/io/xstat.c b/io/xstat.c
new file mode 100644
index 0000000000..e7328cc10e
--- /dev/null
+++ b/io/xstat.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 2002 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 <errno.h>
+#include <sys/stat.h>
+#include <stddef.h>
+
+/* Get file information about FILE in BUF.  */
+int
+__xstat (int vers, const char *file, struct stat *buf)
+{
+  if (vers != _STAT_VER || file == NULL || buf == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+hidden_def (__xstat)
+stub_warning (stat)
+weak_alias (__xstat, _xstat)
+#include <stub-tag.h>
diff --git a/io/xstat64.c b/io/xstat64.c
new file mode 100644
index 0000000000..2fb94cf331
--- /dev/null
+++ b/io/xstat64.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 2002 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 <errno.h>
+#include <sys/stat.h>
+#include <stddef.h>
+
+/* Get file information about FILE in BUF.  */
+int
+__xstat64 (int vers, const char *file, struct stat64 *buf)
+{
+  if (vers != _STAT_VER || file == NULL || buf == NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+hidden_def (__xstat64)
+stub_warning (stat64)
+#include <stub-tag.h>