glibc/sysdeps/nacl/dup.c

/* Duplicate a file descriptor.  NaCl version.
   Copyright (C) 2015-2017 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, returning a new file descriptor open on the same file.  */
int
__dup (int fd)
{
  int result;
  return NACL_CALL (__nacl_irt_fdio.dup (fd, &result), result);
}
libc_hidden_def (__dup)
weak_alias (__dup, dup)