1 /* $NetBSD: pnullfs.c,v 1.18 2008/11/26 14:03:48 pooka Exp $ */
4 * Copyright (c) 2007 Antti Kantee. All Rights Reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * pnullfs: puffs nullfs example
38 static void usage(void);
44 errx(1, "usage: %s [-s] [-o mntopts] nullpath mountpath",
49 main(int argc, char *argv[])
51 struct puffs_usermount *pu;
52 struct puffs_ops *pops;
53 struct puffs_pathobj *po_root;
54 struct puffs_node *pn_root;
65 pflags = mntflags = 0;
67 while ((ch = getopt(argc, argv, "o:s")) != -1) {
70 getmntopts(optarg, puffsmopts, &mntflags, &pflags);
77 pflags |= PUFFS_FLAG_BUILDPATH;
81 if (pflags & PUFFS_FLAG_OPDUMP)
87 if (lstat(argv[0], &sb) == -1)
88 err(1, "stat %s", argv[0]);
89 if ((sb.st_mode & S_IFDIR) == 0)
90 errx(1, "%s is not a directory", argv[0]);
93 puffs_null_setops(pops);
95 if ((pu = puffs_init(pops, argv[0], "pnullfs", NULL, pflags)) == NULL)
98 pn_root = puffs_pn_new(pu, NULL);
100 err(1, "puffs_pn_new");
101 puffs_setroot(pu, pn_root);
102 puffs_setfhsize(pu, 0, PUFFS_FHFLAG_PASSTHROUGH);
104 po_root = puffs_getrootpathobj(pu);
106 err(1, "getrootpathobj");
107 po_root->po_path = argv[0];
108 po_root->po_len = strlen(argv[0]);
109 puffs_stat2vattr(&pn_root->pn_va, &sb);
112 if (puffs_daemon(pu, 1, 1) == -1)
113 err(1, "puffs_daemon");
115 if (puffs_mount(pu, argv[1], mntflags, pn_root) == -1)
116 err(1, "puffs_mount");
117 if (puffs_mainloop(pu) == -1)