1/*-
2 * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: stable/11/sys/cddl/compat/opensolaris/kern/opensolaris_lookup.c 315842 2017-03-23 08:14:41Z avg $");
29
30#include <sys/param.h>
31#include <sys/kernel.h>
32#include <sys/systm.h>
33#include <sys/pathname.h>
34#include <sys/vfs.h>
35#include <sys/vnode.h>
36
37int
38lookupname(char *dirname, enum uio_seg seg, enum symfollow follow,
39    vnode_t **dirvpp, vnode_t **compvpp)
40{
41
42	return (lookupnameat(dirname, seg, follow, dirvpp, compvpp, NULL));
43}
44
45int
46lookupnameat(char *dirname, enum uio_seg seg, enum symfollow follow,
47    vnode_t **dirvpp, vnode_t **compvpp, vnode_t *startvp)
48{
49	struct nameidata nd;
50	int error, ltype;
51
52	ASSERT(dirvpp == NULL);
53
54	vref(startvp);
55	ltype = VOP_ISLOCKED(startvp);
56	VOP_UNLOCK(startvp, 0);
57	NDINIT_ATVP(&nd, LOOKUP, LOCKLEAF | follow, seg, dirname,
58	    startvp, curthread);
59	error = namei(&nd);
60	*compvpp = nd.ni_vp;
61	NDFREE(&nd, NDF_ONLY_PNBUF);
62	vn_lock(startvp, ltype | LK_RETRY);
63	return (error);
64}
65