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/* Copyright (C) 1993,94,95,96,97,98,2001,2003 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <limits.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include <hurd.h>
#include <hurd/fd.h>
#include "dirstream.h"
/* Open a directory stream on NAME. */
DIR *
__opendir (const char *name)
{
DIR *dirp;
int fd;
struct hurd_fd *d;
if (name[0] == '\0')
{
/* POSIX.1-1990 says an empty name gets ENOENT;
but `open' might like it fine. */
__set_errno (ENOENT);
return NULL;
}
{
/* Append trailing slash to directory name to force ENOTDIR
if it's not a directory.
We open using the O_NONBLOCK flag so that a nondirectory with
blocking behavior (FIFO or device) gets ENOTDIR immediately
rather than waiting for the special file's open wakeup predicate. */
size_t len = strlen (name);
if (name[len - 1] == '/')
fd = __open (name, O_RDONLY | O_NONBLOCK);
else
{
char n[len + 2];
memcpy (n, name, len);
n[len] = '/';
n[len + 1] = '\0';
fd = __open (n, O_RDONLY | O_NONBLOCK);
}
}
if (fd < 0)
return NULL;
dirp = (DIR *) malloc (sizeof (DIR));
if (dirp == NULL)
{
__close (fd);
return NULL;
}
/* Extract the pointer to the descriptor structure. */
__mutex_lock (&_hurd_dtable_lock);
d = dirp->__fd = _hurd_dtable[fd];
__mutex_unlock (&_hurd_dtable_lock);
/* Set the descriptor to close on exec. */
__spin_lock (&d->port.lock);
d->flags |= FD_CLOEXEC;
__spin_unlock (&d->port.lock);
dirp->__data = dirp->__ptr = NULL;
dirp->__entry_data = dirp->__entry_ptr = 0;
dirp->__allocation = 0;
dirp->__size = 0;
__libc_lock_init (dirp->__lock);
return dirp;
}
weak_alias (__opendir, opendir)
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