Merge commit 'refs/top-bases/t/bigmem' into t/bigmem

1 files changed, 31 insertions, 0 deletions

diff --git a/sysdeps/nacl/dup2.c b/sysdeps/nacl/dup2.c
new file mode 100644
index 0000000000..948a10892f
--- /dev/null
+++ b/sysdeps/nacl/dup2.c
@@ -0,0 +1,31 @@
+/* Duplicate a file descriptor to a chosen number.  NaCl version.
+   Copyright (C) 2015 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <unistd.h>
+#include <nacl-interfaces.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 (int fd, int fd2)
+{
+  return NACL_CALL (__nacl_irt_fdio.dup2 (fd, fd2), fd2);
+}
+libc_hidden_def (__dup2)
+weak_alias (__dup2, dup2)