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/* close replacement. 
   Copyright (C) 2008-2013 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 "fd-hook.h" 
#include "msvc-inval.h" 
 
#undef close 
 
#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 
 
/* 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; 
}