/* Duplicate an open file descriptor to a specified file descriptor.
- Copyright (C) 1999, 2004-2007, 2009-2016 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2004-2007, 2009-2018 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
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/>. */
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* written by Paul Eggert */
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
-# include "msvc-inval.h"
+# if HAVE_MSVC_INVALID_PARAMETER_HANDLER
+# include "msvc-inval.h"
+# endif
/* Get _get_osfhandle. */
-# include "msvc-nothrow.h"
+# if GNULIB_MSVC_NOTHROW
+# include "msvc-nothrow.h"
+# else
+# include <io.h>
+# endif
+
+# if HAVE_MSVC_INVALID_PARAMETER_HANDLER
+static int
+dup2_nothrow (int fd, int desired_fd)
+{
+ int result;
+
+ TRY_MSVC_INVAL
+ {
+ result = dup2 (fd, desired_fd);
+ }
+ CATCH_MSVC_INVAL
+ {
+ errno = EBADF;
+ result = -1;
+ }
+ DONE_MSVC_INVAL;
+
+ return result;
+}
+# else
+# define dup2_nothrow dup2
+# endif
static int
ms_windows_dup2 (int fd, int desired_fd)
}
/* Wine 1.0.1 return 0 when desired_fd is negative but not -1:
- http://bugs.winehq.org/show_bug.cgi?id=21289 */
+ https://bugs.winehq.org/show_bug.cgi?id=21289 */
if (desired_fd < 0)
{
errno = EBADF;
return -1;
}
- TRY_MSVC_INVAL
- {
- result = dup2 (fd, desired_fd);
- }
- CATCH_MSVC_INVAL
- {
- errno = EBADF;
- result = -1;
- }
- DONE_MSVC_INVAL;
+ result = dup2_nothrow (fd, desired_fd);
if (result == 0)
result = desired_fd;