#!/sbin/runscript
# Copyright 2007 Roy Marples
# All rights reserved

# 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 AUTHOR 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 AUTHOR 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.

description="Saves a kernel dump."

depend() {
	need checkfs
	before swap
}

start() {
	local dump_dir=${dump_dir:-/var/crash}
	if ! [ -d "${dump_dir}" ]; then
		mkdir -p "${dump_dir}"
		chmod 700 "${dump_dir}"
	fi

	if [ "${RC_UNAME}" = "FreeBSD" ]; then
		# Don't quote ${dump_device}, so that if it's unset,
		# savecore will check on the partitions listed in fstab
		# without errors in the output
		savecore -C "${dump_dir}" ${dump_device} >/dev/null
	else
		ls "${dump_dir}"/bsd* > /dev/null 2>&1
	fi
	[ $? = 0 ] || return 0

	local sopts="${dump_dir} ${dump_device}"
	yesno ${dump_compress} && sopts="-z ${sopts}"
	ebegin "Saving kernel core dump in ${dump_dir}"
	savecore ${sopts} >/dev/null
	eend $?
}