Fix a few problems in fopen and freopen

fopen should set the FD_CLOEXEC flag if requested evenif the kernel does
not support an aotmic operation.

freopen should reuse the file descriptor for the stream.  This is
especially important for calls to change the standard streams (stin,
stdout, stderr).

1 files changed, 2 insertions, 1 deletions

diff --git a/io/dup3.c b/io/dup3.c
index 162ab4e68b..17bc88a018 100644
--- a/io/dup3.c
+++ b/io/dup3.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2008 Free Software Foundation, Inc.
+/* Copyright (C) 2008, 2011 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
@@ -43,6 +43,7 @@ dup3 (fd, fd2, flags)
   __set_errno (ENOSYS);
   return -1;
 }
+libc_hidden_def (dup3)
 stub_warning (dup3)
 
 #include <stub-tag.h>