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Diffstat (limited to 'bin/freebsd-version/freebsd-version.sh.in')
| -rw-r--r-- | bin/freebsd-version/freebsd-version.sh.in | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/bin/freebsd-version/freebsd-version.sh.in b/bin/freebsd-version/freebsd-version.sh.in new file mode 100644 index 000000000000..9541b86a2636 --- /dev/null +++ b/bin/freebsd-version/freebsd-version.sh.in @@ -0,0 +1,141 @@ +#!/bin/sh +#- +# Copyright (c) 2013 Dag-Erling Smørgrav +# 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. +# +# $FreeBSD$ +# + +set -e + +USERLAND_VERSION="@@REVISION@@-@@BRANCH@@" + +: ${ROOT:=} +: ${LOADER_DIR:=$ROOT/boot} +: ${LOADER_CONF_FILES:=$LOADER_DIR/defaults/loader.conf $LOADER_DIR/loader.conf $LOADER_DIR/loader.conf.local} +LOADER_RE1='^\([A-Z_a-z][0-9A-Z_a-z]*=[-./0-9A-Z_a-z]\{1,\}\).*$' +LOADER_RE2='^\([A-Z_a-z][0-9A-Z_a-z]*="[-./0-9A-Z_a-z]\{1,\}"\).*$' +KERNEL_RE='^@@TYPE@@ \([-.0-9A-Za-z]\{1,\}\) .*$' + +progname=${0##*/} + +# +# Print an error message and exit. +# +error() { + echo "$progname: $*" >&2 + exit 1 +} + +# +# Try to get the name of the installed kernel from loader.conf and +# return the full path. If loader.conf does not exist or we could not +# read it, return the path to the default kernel. +# +kernel_file() { + eval $(sed -n "s/$LOADER_RE1/\\1;/p; s/$LOADER_RE2/\\1;/p" \ + $LOADER_CONF_FILES 2>/dev/null) + echo "$LOADER_DIR/${kernel:-kernel}/${bootfile:-kernel}" +} + +# +# Extract the kernel version from the installed kernel. +# +kernel_version() { + kernfile=$(kernel_file) + if [ ! -f "$kernfile" -o ! -r "$kernfile" ] ; then + error "unable to locate kernel" + fi + what -qs "$kernfile" | sed -n "s/$KERNEL_RE/\\1/p" +} + +# +# Print the version of the currently running kernel. +# +running_version() { + sysctl -n kern.osrelease +} + +# +# Print the hardcoded userland version. +# +userland_version() { + echo $USERLAND_VERSION +} + +# +# Print a usage string and exit. +# +usage() { + echo "usage: $progname [-kru]" >&2 + exit 1 +} + +# +# Main program. +# +main() { + # parse command-line arguments + while getopts "kru" option ; do + case $option in + k) + opt_k=1 + ;; + r) + opt_r=1 + ;; + u) + opt_u=1 + ;; + *) + usage + ;; + esac + done + if [ $OPTIND -le $# ] ; then + usage + fi + + # default is -u + if [ $((opt_k + opt_r + opt_u)) -eq 0 ] ; then + opt_u=1 + fi + + # print installed kernel version + if [ $opt_k ] ; then + kernel_version + fi + + # print running kernel version + if [ $opt_r ] ; then + running_version + fi + + # print userland version + if [ $opt_u ] ; then + userland_version + fi +} + +main "$@" |