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-rw-r--r--gl/close.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/gl/close.c b/gl/close.c
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1/* close replacement.
2 Copyright (C) 2008-2023 Free Software Foundation, Inc.
3
4 This file is free software: you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as
6 published by the Free Software Foundation; either version 2.1 of the
7 License, or (at your option) any later version.
8
9 This file 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 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program. If not, see <https://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#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
26# include "msvc-inval.h"
27#endif
28
29#undef close
30
31#if defined _WIN32 && !defined __CYGWIN__
32# if HAVE_MSVC_INVALID_PARAMETER_HANDLER
33static int
34close_nothrow (int fd)
35{
36 int result;
37
38 TRY_MSVC_INVAL
39 {
40 result = _close (fd);
41 }
42 CATCH_MSVC_INVAL
43 {
44 result = -1;
45 errno = EBADF;
46 }
47 DONE_MSVC_INVAL;
48
49 return result;
50}
51# else
52# define close_nothrow _close
53# endif
54#else
55# define close_nothrow close
56#endif
57
58/* Override close() to call into other gnulib modules. */
59
60int
61rpl_close (int fd)
62{
63#if WINDOWS_SOCKETS
64 int retval = execute_all_close_hooks (close_nothrow, fd);
65#else
66 int retval = close_nothrow (fd);
67#endif
68
69#if REPLACE_FCHDIR
70 if (retval >= 0)
71 _gl_unregister_fd (fd);
72#endif
73
74 return retval;
75}