- Add Configuration file support for 'bind_get_domain_by_hostname.sh'.
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@ -1,94 +1,214 @@
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#!/usr/bin/env bash
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# - Bind configuration file containing zone definitions
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# -
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ZONE_CONF_FILE=/etc/bind/named.conf.local
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working_dir="$(dirname $(realpath $0))"
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conf_file="${working_dir}/conf/bind.conf"
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## --
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## -- End: Variable definitions
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log_file="$(mktemp)"
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## ***
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## *** Don't make changes after this line ***
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## ***
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#---------------------------------------
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#-----------------------------
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# Base Function(s)
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#-----------------------------
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#---------------------------------------
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usage() {
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echo
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[ -n "$1" ] && echo -e "Error: $1\n"
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cat<<EOF
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Usage: $(basename $0) [Options] <full-qualified-hostname>
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Script checks if a given hostname is supported by this nameserver. Hostname can
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alos be a TLD name.
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As result the Script returns the zone (domain) of the given hostname." In silent
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mode (-q), script returns an empty String, if the given hostname is not
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supported by this nameserver.
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Options:
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-h
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Prints this help.
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-q
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Runs in silent mode.
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EOF
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clean_up 1
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}
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clean_up() {
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# Perform program exit housekeeping
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rm $log_file
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exit $1
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}
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## --- some functions
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## ---
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echononl(){
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echo X\\c > /tmp/shprompt$$
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if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
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echo -e -n "$*\\c" 1>&2
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else
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echo -e -n "$*" 1>&2
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if $verbose ; then
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echo X\\c > /tmp/shprompt$$
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if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
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echo -e -n "$*\\c" 1>&2
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else
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echo -e -n "$*" 1>&2
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fi
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rm /tmp/shprompt$$
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fi
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rm /tmp/shprompt$$
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}
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warn (){
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echo ""
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echo -e "\t[ \033[33m\033[1mWarning\033[m ]: $*"
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echo ""
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if $verbose ; then
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echo ""
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echo -e "\t[ \033[33m\033[1mWarning\033[m ]: $*"
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echo ""
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fi
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}
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info (){
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echo ""
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echo -e "\t[ \033[32m\033[1mInfo\033[m ]: $*"
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echo ""
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if $verbose ; then
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echo ""
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echo -e "\t[ \033[32m\033[1mInfo\033[m ]: $*"
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echo ""
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fi
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}
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error(){
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echo ""
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echo -e "\t[ \033[31m\033[1mFehler\033[m ]: $*"
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echo ""
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if $verbose ; then
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echo ""
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echo -e "\t[ \033[31m\033[1mFehler\033[m ]: $*"
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echo ""
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fi
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}
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echo_ok() {
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echo -e "\033[75G[ \033[32mok\033[m ]"
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if $verbose ; then
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echo -e "\033[75G[ \033[32mok\033[m ]"
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fi
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}
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echo_failed(){
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echo -e "\033[75G[ \033[1;31mfailed\033[m ]"
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if $verbose ; then
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echo -e "\033[75G[ \033[1;31mfailed\033[m ]"
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fi
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}
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echo_skipped() {
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echo -e "\033[75G[ \033[33m\033[1mskipped\033[m ]"
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if $verbose ; then
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echo -e "\033[75G[ \033[33m\033[1mskipped\033[m ]"
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fi
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}
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## ---
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## --- END: functions
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hostname=$1
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# - Test whether stdout (file descriptor 1) is a terminal or not (e.g. cron
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# - or if you pipe the output to some other program)
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#
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if [[ -t 1 ]] ; then
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verbose=true
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verbose=true
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else
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verbose=false
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fi
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while getopts hq opt ; do
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case $opt in
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q) verbose=false
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;;
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h) usage
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;;
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*)
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;;
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esac
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done
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shift $(expr $OPTIND - 1)
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if [[ $# -ne 1 ]] ; then
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if $verbose ; then
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usage "wrong number of arguments"
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else
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clean_up 10
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fi
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fi
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hostname=$1
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$verbose && echo ""
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if [[ -z "$hostname" ]] ; then
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error "No hostname/domain given!"
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clean_up 10
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fi
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#---------------------------------------
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#-----------------------------
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# Setting Defaults
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#-----------------------------
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#---------------------------------------
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DEFAULT_CONF_FILE_DIR="/etc/bind"
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#---------------------------------------
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#-----------------------------
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# Load default values from bind.conf
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#
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# Overwrites the settings above
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#
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#-----------------------------
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#---------------------------------------
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if $verbose ; then
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clear
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echo ""
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echo -e "\033[32mRunning script \033[1m"$(basename $0)"\033[m .."
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echo ""
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fi
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info "Given hostname: \033[1m${hostname}\033[m"
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echononl "\t Loading default Configuration values from $(basename ${conf_file}).."
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if [[ ! -f "$conf_file" ]]; then
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echo_skipped
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else
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source "${conf_file}" > $log_file 2>&1
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if [[ $? -eq 0 ]]; then
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echo_ok
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else
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echo_failed
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fatal "$(cat $log_file)"
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fi
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fi
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[[ -n "$CONF_FILE_DIR" ]] || CONF_FILE_DIR="$DEFAULT_CONF_FILE_DIR"
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[[ -n "$ZONES_DECLARATION_FILE" ]] || ZONES_DECLARATION_FILE="${CONF_FILE_DIR}/named.conf.local"
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$verbose && echo ""
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# - Validate Syntax of given domain
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# -
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valid_domain_regex="^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])(\.([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]{0,61}[a-zA-Z0-9]))*$"
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$verbose && echononl "\tValidate syntax of given hostname/domain.."
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echononl "\t Validate syntax of given hostname/domain.."
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if [[ $hostname =~ $valid_domain_regex ]]; then
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if [[ ! $hostname =~ \. ]]; then
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$verbose && echo_failed
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$verbose && error "Invalid hostname/domain given!"
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exit 10
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echo_failed
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error "Invalid hostname/domain given!"
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clean_up 10
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else
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$verbose && echo_ok
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echo_ok
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fi
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else
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$verbose && echo_failed
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$verbose && error "Invalid hostname/domain given!"
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exit 10
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echo_failed
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error "Invalid hostname/domain given!"
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clean_up 10
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fi
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_failed=false
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_hostname=$(echo ${hostname//\./\\.})
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while ! grep -e "$_hostname" $ZONE_CONF_FILE > /dev/null 2>&1 ; do
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while ! grep -E "^\s*zone\s+\"?$_hostname" $ZONES_DECLARATION_FILE > /dev/null 2>&1 ; do
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hostname=${hostname#*.}
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_hostname=$(echo ${hostname//\./\\.})
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if [[ ! $_hostname =~ \. ]]; then
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@ -102,12 +222,12 @@ if $_failed ; then
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else
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domain=$hostname
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if $verbose ; then
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info "Domain: $domain"
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info "Hosted Zone: \033[1m${domain}\033[m"
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else
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echo "$domain"
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fi
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fi
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$verbose && echo
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exit 0
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clean_up 0
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