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for-gentoo/sys-fs/udev/files/151/shell-compat-KV.sh
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2010-03-01 09:05:17 +01:00

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# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# provides get_KV and KV_to_int as not all openrc-versions installed via ebuild have these
cmd_exist()
{
type "$1" >/dev/null 2>&1
}
# does exist in baselayout-1
# does not exist in openrc, but is added by openrc-ebuild since some time
if ! cmd_exist KV_to_int; then
KV_to_int() {
[ -z $1 ] && return 1
local x=${1%%-*}
local KV_MAJOR=${x%%.*}
x=${x#*.}
local KV_MINOR=${x%%.*}
x=${x#*.}
local KV_MICRO=${x%%.*}
local KV_int=$((${KV_MAJOR} * 65536 + ${KV_MINOR} * 256 + ${KV_MICRO} ))
# We make version 2.2.0 the minimum version we will handle as
# a sanity check ... if its less, we fail ...
[ "${KV_int}" -lt 131584 ] && return 1
echo "${KV_int}"
}
fi
# same as KV_to_int
if ! cmd_exist get_KV; then
_RC_GET_KV_CACHE=""
get_KV() {
[ -z "${_RC_GET_KV_CACHE}" ] \
&& _RC_GET_KV_CACHE="$(uname -r)"
echo "$(KV_to_int "${_RC_GET_KV_CACHE}")"
return $?
}
fi