1/* close replacement.
2   Copyright (C) 2008-2012 Free Software Foundation, Inc.
3
4   This program is free software: you can redistribute it and/or modify
5   it under the terms of the GNU General Public License as published by
6   the Free Software Foundation; either version 3 of the License, or
7   (at your option) any later version.
8
9   This program is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12   GNU General Public License for more details.
13
14   You should have received a copy of the GNU General Public License
15   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
16
17#include <config.h>
18
19/* Specification.  */
20#include <unistd.h>
21
22#include <errno.h>
23
24#include "fd-hook.h"
25#include "msvc-inval.h"
26
27#undef close
28
29#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
30static int
31close_nothrow (int fd)
32{
33  int result;
34
35  TRY_MSVC_INVAL
36    {
37      result = close (fd);
38    }
39  CATCH_MSVC_INVAL
40    {
41      result = -1;
42      errno = EBADF;
43    }
44  DONE_MSVC_INVAL;
45
46  return result;
47}
48#else
49# define close_nothrow close
50#endif
51
52/* Override close() to call into other gnulib modules.  */
53
54int
55rpl_close (int fd)
56{
57#if WINDOWS_SOCKETS
58  int retval = execute_all_close_hooks (close_nothrow, fd);
59#else
60  int retval = close_nothrow (fd);
61#endif
62
63#if REPLACE_FCHDIR
64  if (retval >= 0)
65    _gl_unregister_fd (fd);
66#endif
67
68  return retval;
69}
70