text: /* 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;
  }
  