#!/bin/sh
#
# Copyright (c) 2019-2021 Mischa Peters <mischa @ openbsd.amsterdam>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#
HOST="s1.obsda.ms"
COMMUNITY="public"

#15259107187 / 8640000 = days (+remainder) = 176.6107855324074
#0.6107855324074 * 24 = hours (+remainder) = 14.65885277777778
#0.65885277777778 * 60 = minutes (+remainder) = 39.53116666666667
#0.53116666666667 * 60 = seconds.milliseconds = 31.87

echo
TICKS=$(snmp get -c ${COMMUNITY} ${HOST} hrSystemUptime.0 | awk -F"[()]" '{print $2}')
echo "TICKS: $TICKS"

TICKS="1193085988"

DAYS=$(echo "${TICKS}/8640000" | bc -l)
echo "DAYS_REM: ${DAYS##*.}"
echo "DAYS: ${DAYS%.*}"

HOURS=$(echo "0.${DAYS##*.} * 24" | bc -l)
echo "HOURS: ${HOURS}"
echo "HOURS: ${HOURS%.*}"
echo "HOURS: ${HOURS##*.}"

MINUTES=$(echo "0.${HOURS##*.} * 60" | bc -l)
echo "MINUTES: ${MINUTES}"
echo "MINUTES: ${MINUTES%.*}"
echo "MINUTES: ${MINUTES##*.}"

SECS=$(echo "0.${MINUTES##*.} * 60" | bc -l)
echo "SECONDS: ${SECS}"
echo "SECONDS: ${SECS%.*}"
echo "SECONDS: ${SECS##*.}"

test -n "$DAYS" && printf "%s days, " "${DAYS%.*}"
printf '%02d:%02d:%02d\n' "${HOURS%.*}" "${MINUTES%.*}" "${SECS%.*}"