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/* Open a directory stream from a file descriptor. Hurd version.
Copyright (C) 2005-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library 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.
The GNU C Library 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 the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <dirent.h>
#include <errno.h>
#include <hurd.h>
#include <hurd/fd.h>
#include <fcntl.h>
DIR *_hurd_fd_opendir (struct hurd_fd *d); /* opendir.c */
/* Open a directory stream on FD. */
DIR *
__fdopendir (int fd)
{
struct hurd_fd *d = _hurd_fd_get (fd);
if (d == NULL)
{
errno = EBADF;
return NULL;
}
/* Ensure that it's a directory. */
error_t err = HURD_FD_PORT_USE
(d, ({
file_t dir = __file_name_lookup_under (port, "/",
O_DIRECTORY | O_NOTRANS, 0);;
if (dir != MACH_PORT_NULL)
__mach_port_deallocate (__mach_task_self (), dir);
dir != MACH_PORT_NULL ? 0 : errno;
}));
if (err)
{
errno = err;
return NULL;
}
return _hurd_fd_opendir (d);
}
weak_alias (__fdopendir, fdopendir)
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