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/* close replacement.
Copyright (C) 2008-2022 Free Software Foundation, Inc.
This file 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.
This file 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 this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include <unistd.h>
#include <errno.h>
#include "fd-hook.h"
#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
# include "msvc-inval.h"
#endif
#undef close
#if defined _WIN32 && !defined __CYGWIN__
# if HAVE_MSVC_INVALID_PARAMETER_HANDLER
static int
close_nothrow (int fd)
{
int result;
TRY_MSVC_INVAL
{
result = _close (fd);
}
CATCH_MSVC_INVAL
{
result = -1;
errno = EBADF;
}
DONE_MSVC_INVAL;
return result;
}
# else
# define close_nothrow _close
# endif
#else
# define close_nothrow close
#endif
/* Override close() to call into other gnulib modules. */
int
rpl_close (int fd)
{
#if WINDOWS_SOCKETS
int retval = execute_all_close_hooks (close_nothrow, fd);
#else
int retval = close_nothrow (fd);
#endif
#if REPLACE_FCHDIR
if (retval >= 0)
_gl_unregister_fd (fd);
#endif
return retval;
}
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