wget/lib/closedir.c

82 lines
1.8 KiB
C

/* Stop reading the entries of a directory.
Copyright (C) 2006-2023 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 <dirent.h>
#if REPLACE_FCHDIR
# include <unistd.h>
#endif
#include <stdlib.h>
#if HAVE_CLOSEDIR
/* Override closedir(), to keep track of the open file descriptors.
Needed because there is a function dirfd(). */
#endif
#if GNULIB_defined_DIR
# include "dirent-private.h"
#endif
int
closedir (DIR *dirp)
#undef closedir
{
#if GNULIB_defined_DIR || REPLACE_FCHDIR || defined __KLIBC__
int fd = dirfd (dirp);
#endif
int retval;
#if HAVE_DIRENT_H /* equivalent to HAVE_CLOSEDIR */
# if GNULIB_defined_DIR
retval = closedir (dirp->real_dirp);
if (retval >= 0)
free (dirp);
# else
retval = closedir (dirp);
# endif
# ifdef __KLIBC__
if (!retval)
_gl_unregister_dirp_fd (fd);
# endif
#else
if (dirp->current != INVALID_HANDLE_VALUE)
FindClose (dirp->current);
free (dirp);
retval = 0;
#endif
#if GNULIB_defined_DIR
if (retval >= 0)
close (fd);
#elif REPLACE_FCHDIR
if (retval >= 0)
_gl_unregister_fd (fd);
#endif
return retval;
}