90 lines
2.6 KiB
Bash
90 lines
2.6 KiB
Bash
#!/bin/sh
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#
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# $NetBSD: osrelease.sh,v 1.120 2009/11/15 18:41:08 dsl Exp $
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#
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# Copyright (c) 1997 The NetBSD Foundation, Inc.
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# All rights reserved.
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#
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# This code is derived from software contributed to The NetBSD Foundation
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# by Luke Mewburn.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# We use the number specified in <sys/param.h>
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path="$0"
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[ "${path#/*}" = "$path" ] && path="./$path"
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exec < ${path%/*}/../sys/param.h
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# Search for line
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# #define __NetBSD_Version__ <ver_num> /* NetBSD <ver_text> */
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#
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# <ver_num> and <ver_text> should match!
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while
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read define ver_tag rel_num comment_start NetBSD rel_text rest || exit 1
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do
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[ "$define" = "#define" ] || continue;
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[ "$ver_tag" = "__NetBSD_Version__" ] || continue
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break
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done
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# default: return MM.mm.pp
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# -m: return MM, representing only the major number; however, for -current,
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# return the next major number (e.g. for 5.99.nn, return 6)
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# -n: return MM.mm
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# -s: return MMmmpp (no dots)
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option="$1"
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# ${rel_num} is [M]Mmm00pp00
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rel_num=${rel_num%??}
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rel_MMmm=${rel_num%????}
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rel_MM=${rel_MMmm%??}
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rel_mm=${rel_MMmm#${rel_MM}}
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# rel_pp=${rel_num#${rel_MMmm}00}
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# Get patch from text version
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IFS=.
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set -- - $rel_text
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shift 3
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IFS=' '
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set -- $rel_MM ${rel_mm#0} $*
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case "$option" in
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-m)
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echo "$(((${rel_MMmm}+1)/100))"
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;;
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-n)
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echo "${rel_MM}.${rel_mm#0}"
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;;
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-s)
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IFS=
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echo "$*"
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;;
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*)
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IFS=.
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echo "$*"
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;;
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esac
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