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      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 *
     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
     63 fuse_teardown_v22(struct fuse *fuse,
     64                   int fd __attribute__((__unused__)),
     65                   char *mountpoint __attribute__((__unused__))) {
     66     __fuse_teardown(fuse);
     67 }
     68