96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
/* Copyright (C) 1993,94,95,96,97,98,2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <errno.h>
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#include <limits.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include <dirent.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <hurd.h>
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#include <hurd/fd.h>
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#include "dirstream.h"
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/* Open a directory stream on NAME. */
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DIR *
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__opendir (const char *name)
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{
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DIR *dirp;
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int fd;
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struct hurd_fd *d;
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if (name[0] == '\0')
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{
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/* POSIX.1-1990 says an empty name gets ENOENT;
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but `open' might like it fine. */
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__set_errno (ENOENT);
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return NULL;
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}
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{
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/* Append trailing slash to directory name to force ENOTDIR
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if it's not a directory. */
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size_t len = strlen (name);
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if (name[len - 1] == '/')
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fd = __open (name, O_RDONLY);
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else
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{
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char n[len + 2];
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memcpy (n, name, len);
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n[len] = '/';
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n[len + 1] = '\0';
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fd = __open (n, O_RDONLY);
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}
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}
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if (fd < 0)
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return NULL;
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dirp = (DIR *) malloc (sizeof (DIR));
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if (dirp == NULL)
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{
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__close (fd);
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return NULL;
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}
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/* Extract the pointer to the descriptor structure. */
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__mutex_lock (&_hurd_dtable_lock);
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d = dirp->__fd = _hurd_dtable[fd];
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__mutex_unlock (&_hurd_dtable_lock);
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/* Set the descriptor to close on exec. */
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__spin_lock (&d->port.lock);
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d->flags |= FD_CLOEXEC;
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__spin_unlock (&d->port.lock);
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dirp->__data = dirp->__ptr = NULL;
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dirp->__entry_data = dirp->__entry_ptr = 0;
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dirp->__allocation = 0;
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dirp->__size = 0;
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__libc_lock_init (dirp->__lock);
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return dirp;
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}
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weak_alias (__opendir, opendir)
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