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#!/bin/sh
#
# $NetBSD: osrelease.sh,v 1.122 2012/02/16 23:56:57 christos Exp $
#
# Copyright (c) 1997 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Luke Mewburn.
#
# 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.
#
# We use the number specified in <sys/param.h>
path="$0"
[ "${path#/*}" = "$path" ] && path="./$path"
exec < ${path%/*}/../sys/param.h
# Search for line
# #define __NetBSD_Version__ <ver_num> /* NetBSD <ver_text> */
#
# <ver_num> and <ver_text> should match!
while
read define ver_tag rel_num comment_start NetBSD rel_text rest || exit 1
do
[ "$define" = "#define" ] || continue;
[ "$ver_tag" = "__NetBSD_Version__" ] || continue
break
done
# default: return MM.mm.pp
# -m: return MM, representing only the major number; however, for -current,
# return the next major number (e.g. for 5.99.nn, return 6)
# -n: return MM.mm
# -s: return MMmmpp (no dots)
# -k: return MM.mm on release branch, MM.mm.pp on current.
option="$1"
# ${rel_num} is [M]Mmm00pp00
rel_num=${rel_num%??}
rel_MMmm=${rel_num%????}
rel_MM=${rel_MMmm%??}
rel_mm=${rel_MMmm#${rel_MM}}
# rel_pp=${rel_num#${rel_MMmm}00}
# Get patch from text version
IFS=.
set -- - $rel_text
beta=${3#[0-9]}
beta=${beta#[0-9]}
shift 3
IFS=' '
set -- $rel_MM ${rel_mm#0}$beta $*
case "$option" in
-k)
if [ ${rel_mm#0} = 99 ]
then
IFS=.
echo "$*"
else
echo "${rel_MM}.${rel_mm#0}"
fi
;;
-m)
echo "$(((${rel_MMmm}+1)/100))"
;;
-n)
echo "${rel_MM}.${rel_mm#0}"
;;
-s)
IFS=
echo "$*"
;;
*)
IFS=.
echo "$*"
;;
esac
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