xref: /freebsd/tools/regression/tmpfs/t_symlink (revision d0b2dbfa0ecf2bbc9709efc5e20baf8e4b44bbbf)

#!/bin/sh
#
# $NetBSD: t_symlink,v 1.6 2006/11/09 16:20:06 jmmv Exp $
#
# Copyright (c) 2005, 2006 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Julio M. Merino Vidal, developed as part of Google's Summer of Code
# 2005 program.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
#

#
# Verifies that the symlink and readlink operations work.
#

test_run() {
	test_mount

	test_name "Creation of an empty file"
	touch a || die
	test_name "Creation of a symlink pointing to it"
	ln -s a b || die
	test_name "Symlink points to correct file"
	[ $(md5 b | cut -d ' ' -f 4) = d41d8cd98f00b204e9800998ecf8427e ] || die

	test_name "Changing original file"
	echo foo >a || die
	test_name "Symlink reflects the changes"
	[ $(md5 b | cut -d ' ' -f 4) = d3b07384d113edec49eaa6238ad5ff00 ] || die

	test_name "Creation of symlink to a known system file"
	ln -s /bin/cp cp || die
	test_name "Trying to see if it works"
	./cp b c || die
	[ -f c ] || die

	test_name "Symlinking directories works"
	mkdir d || die
	[ -f d/foo ] && die
	[ -f e/foo ] && die
	ln -s d e || die
	touch d/foo || die
	[ -f d/foo ] || die
	[ -f e/foo ] || die

	mkdir dir || die
	echo 'ln -s non-existent dir/a' | kqueue_monitor 1 dir || die
	test_name "Creating a symlink raises NOTE_WRITE on the parent" \
	    "directory"
	kqueue_check dir NOTE_WRITE || die
	rm dir/a || die
	rmdir dir || die

	test_unmount
}

. ${SUBRDIR}/h_funcs.subr