xref: /netbsd-src/lib/librefuse/refuse/v22.c (revision ec9afb42821c4c1dc720bf626e8bbd4d8ab9d6b4)
1 /* $NetBSD: v22.c,v 1.1 2022/01/22 08:09:40 pho Exp $ */
2 
3 /*
4  * Copyright (c) 2021 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. The name of the author may not be used to endorse or promote
16  *    products derived from this software without specific prior written
17  *    permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
20  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
23  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
25  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #include <sys/cdefs.h>
33 #if !defined(lint)
34 __RCSID("$NetBSD: v22.c,v 1.1 2022/01/22 08:09:40 pho Exp $");
35 #endif /* !lint */
36 
37 #include <fuse_internal.h>
38 
39 struct fuse *
fuse_setup_v22(int argc,char * argv[],const void * op,int op_version,char ** mountpoint,int * multithreaded,int * fd)40 fuse_setup_v22(int argc, char *argv[], const void *op, int op_version,
41                char **mountpoint, int *multithreaded, int *fd) {
42     /*
43      * This is conceptually the part of fuse_main() before the event
44      * loop. However, FUSE 2.2 fuse_setup() takes a pointer to store a
45      * channel fd, which is supposed to be obtained by calling FUSE
46      * 2.1 fuse_mount(). The problem is that we don't really have such
47      * a thing as channel fd. Luckily for us, the only valid use of
48      * the channel fd is to pass to fuse_new(), which is a part of
49      * fuse_setup() itself. So it should be okay to just put a dummy
50      * value there.
51      */
52     struct fuse* fuse;
53 
54     fuse = fuse_setup_v26(argc, argv, op, op_version, mountpoint, multithreaded, NULL);
55     if (fuse == NULL)
56         return NULL;
57 
58     *fd = -1;
59     return fuse;
60 }
61 
62 void
fuse_teardown_v22(struct fuse * fuse,int fd,char * mountpoint)63 fuse_teardown_v22(struct fuse *fuse,
64                   int fd __attribute__((__unused__)),
65                   char *mountpoint __attribute__((__unused__))) {
66     __fuse_teardown(fuse);
67 }
68