File nagios-exec-start-post of Package nagios

#! /bin/sh
# Copyright (c) 2014 SUSE LINUX Products GmbH, Nuernberg, Germany
#
# Original Author: Tim Hardeck
# bases on the SUSE Icinga init script from Wolfgang Rosenauer, Lars Vogdt
#
CONFIG='/etc/nagios/nagios.cfg'

# grab a config option
get_var() {
    if [ -n "$2" ]; then
        set -- `grep ^$1 $2 | sed 's@=@ @' | tr -d '[:cntrl:]'`
    else
        set -- `grep ^$1 "$CONFIG" | sed 's@=@ @' | tr -d '[:cntrl:]'`
    fi
    shift # remove first ARG => search-string
    echo $*
}

# get variables from config file
log_file="$(get_var log_file)"
nagios_user="$(get_var nagios_user)"
nagios_group="$(get_var nagios_group)"
nagios_cmdgrp="$(get_var nagios_cmdgrp)"
resource_file="$(get_var resource_file)"
state_retention_file="$(get_var state_retention_file)"
status_file="$(get_var status_file)"

# use default values if above check doesn't work
: ${log_file:=/var/log/nagios/nagios.log}
: ${nagios_user:=nagios}
: ${nagios_group:=nagios}
: ${nagios_cmdgrp:=nagcmd}
: ${resource_file:=/etc/nagios/resource.cfg}
: ${state_retention_file:=/var/log/nagios/retention.dat}
: ${status_file:=/var/log/nagios/status.dat}

# set default access rights for files and directories
for file in "$log_file" "$state_retention_file" "$status_file"; do
    if [ ! -e "$file" ]; then
        touch "$file"
    fi
    chown --no-dereference ${nagios_user}:${nagios_cmdgrp} "$file"
done