+
−/* Duplicate an open file descriptor.
+
−
+
−   Copyright (C) 2011-2012 Free Software Foundation, Inc.
+
−
+
−   This program is free software: you can redistribute it and/or modify
+
−   it under the terms of the GNU General Public License as published by
+
−   the Free Software Foundation; either version 3 of the License, or
+
−   (at your option) any later version.
+
−
+
−   This program 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 General Public License for more details.
+
−
+
−   You should have received a copy of the GNU General Public License
+
−   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
−
+
−#include <config.h>
+
−
+
−/* Specification.  */
+
−#include <unistd.h>
+
−
+
−#include <errno.h>
+
−
+
−#include "msvc-inval.h"
+
−
+
−#undef dup
+
−
+
−#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
+
−static inline int
+
−dup_nothrow (int fd)
+
−{
+
−  int result;
+
−
+
−  TRY_MSVC_INVAL
+
−    {
+
−      result = dup (fd);
+
−    }
+
−  CATCH_MSVC_INVAL
+
−    {
+
−      result = -1;
+
−      errno = EBADF;
+
−    }
+
−  DONE_MSVC_INVAL;
+
−
+
−  return result;
+
−}
+
−#else
+
−# define dup_nothrow dup
+
−#endif
+
−
+
−int
+
−rpl_dup (int fd)
+
−{
+
−  int result = dup_nothrow (fd);
+
−#if REPLACE_FCHDIR
+
−  if (result >= 0)
+
−    result = _gl_register_dup (fd, result);
+
−#endif
+
−  return result;
+
−}