1#!/bin/sh
2#
3# $NetBSD: h_funcs.subr,v 1.3 2010/06/23 11:19:17 pooka Exp $
4#
5# Copyright (c) 2007 The NetBSD Foundation, Inc.
6# All rights reserved.
7#
8# Redistribution and use in source and binary forms, with or without
9# modification, are permitted provided that the following conditions
10# are met:
11# 1. Redistributions of source code must retain the above copyright
12#    notice, this list of conditions and the following disclaimer.
13# 2. Redistributions in binary form must reproduce the above copyright
14#    notice, this list of conditions and the following disclaimer in the
15#    documentation and/or other materials provided with the distribution.
16#
17# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
18# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
21# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27# POSSIBILITY OF SUCH DAMAGE.
28#
29
30#
31# require_fs name
32#
33#	Checks that the given file system is built into the kernel and
34#	that its corresponding mount(8) utility is available.  Otherwise
35#	skips the test.
36#
37require_fs() {
38	local name
39	local autoload
40	name="${1}"
41
42	atf_require_prog mount
43	atf_require_prog mount_${name}
44	atf_require_prog umount
45
46	# if we have autoloadable modules, just assume the file system
47	atf_require_prog sysctl
48	autoload=$(sysctl -n kern.module.autoload)
49	[ "${autoload}" = "1" ] && return 0
50
51	set -- $(sysctl -n vfs.generic.fstypes)
52	found=no
53	while [ ${#} -gt 1 ];  do
54		if [ ${1} = ${name} ]; then
55			found=yes
56			break
57		fi
58		shift
59	done
60	[ ${found} = yes ] || \
61		atf_skip "The kernel does not include support the " \
62		         "\`${name}' file system"
63}
64