ibcs2_util.c revision 330897 
1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1994 Christos Zoulas
5 * Copyright (c) 1995 Frank van der Linden
6 * Copyright (c) 1995 Scott Bartram
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. The name of the author may not be used to endorse or promote products
18 *    derived from this software without specific prior written permission
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 *	from: svr4_util.c,v 1.5 1995/01/22 23:44:50 christos Exp
32 */
33
34#include <sys/cdefs.h>
35__FBSDID("$FreeBSD: stable/11/sys/i386/ibcs2/ibcs2_util.c 330897 2018-03-14 03:19:51Z eadler $");
36
37#include <sys/fcntl.h>
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/syscallsubr.h>
41
42#include <i386/ibcs2/ibcs2_util.h>
43
44
45const char      ibcs2_emul_path[] = "/compat/ibcs2";
46
47/*
48 * Search an alternate path before passing pathname arguments on
49 * to system calls. Useful for keeping a separate 'emulation tree'.
50 *
51 * If cflag is set, we check if an attempt can be made to create
52 * the named file, i.e. we check if the directory it should
53 * be in exists.
54 */
55int
56ibcs2_emul_find(struct thread *td, char *path, enum uio_seg pathseg,
57    char **pbuf, int cflag)
58{
59
60	return (kern_alternate_path(td, ibcs2_emul_path, path, pathseg, pbuf,
61	    cflag, AT_FDCWD));
62}
63