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[for-15.05] ddns-scripts: backport of 2.7.6-10
Backport of current version 2.7.6-10 - more services - more functionality - be prepared for next versions compiled ipk-packages available at https://github.com/chris5560/OpenWrt-Backports/tree/master/for-CC15.05.01/ddns-scripts_2.7.6-10 Signed-off-by: Christian Schoenebeck <christian.schoenebeck@gmail.com>
This commit is contained in:
Christian Schoenebeck
@@ -1,77 +1,129 @@
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#!/bin/sh
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# /usr/lib/ddns/luci_dns_helper.sh
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# /usr/lib/ddns/dynamic_dns_lucihelper.sh
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#
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#.Distributed under the terms of the GNU General Public License (GPL) version 2.0
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#
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# Written in August 2014 by
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#.Christian Schoenebeck <christian dot schoenebeck at gmail dot com>
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#.2014-2017 Christian Schoenebeck <christian dot schoenebeck at gmail dot com>
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# This script is used by luci-app-ddns
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# - getting registered IP
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# - check if possible to get local IP
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# - verifing given DNS- or Proxy-Server
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#
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# variables in small chars are read from /etc/config/ddns as parameter given here
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# variables in big chars are defined inside these scripts as gloval vars
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# variables in big chars beginning with "__" are local defined inside functions only
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# set -vx #script debugger
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[ $# -lt 2 ] && exit 1
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. /usr/lib/ddns/dynamic_dns_functions.sh # global vars are also defined here
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# preset some variables, wrong or not set in dynamic_dns_functions.sh
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usage() {
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cat << EOF
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Usage:
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$MYPROG [options] -- command
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Commands:
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get_local_ip using given INTERFACE or NETWORK or SCRIPT or URL
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get_registered_ip for given FQDN
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verify_dns given DNS-SERVER
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verify_proxy given PROXY
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start start given SECTION
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reload force running ddns processes to reload changed configuration
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restart restart all ddns processes
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Parameters:
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-6 => use_ipv6=1 (default 0)
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-d DNS-SERVER => dns_server=SERVER[:PORT]
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-f => force_ipversion=1 (default 0)
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-g => is_glue=1 (default 0)
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-i INTERFACE => ip_interface=INTERFACE; ip_source="interface"
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-l FQDN => lookup_host=FQDN
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-n NETWORK => ip_network=NETWORK; ip_source="network"
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-p PROXY => proxy=[USER:PASS@]PROXY:PORT
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-s SCRIPT => ip_script=SCRIPT; ip_source="script"
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-t => force_dnstcp=1 (default 0)
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-u URL => ip_url=URL; ip_source="web"
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-S SECTION SECTION to start
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-h => show this help and exit
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-L => use_logfile=1 (default 0)
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-v LEVEL => VERBOSE=LEVEL (default 0)
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-V => show version and exit
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EOF
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}
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usage_err() {
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printf %s\\n "$MYPROG: $@" >&2
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usage >&2
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exit 255
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}
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# preset some variables, wrong or not set in ddns-functions.sh
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SECTION_ID="lucihelper"
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LOGFILE="$LOGDIR/$SECTION_ID.log"
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DATFILE="$RUNDIR/$SECTION_ID.$$.dat" # save stdout data of WGet and other extern programs called
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ERRFILE="$RUNDIR/$SECTION_ID.$$.err" # save stderr output of WGet and other extern programs called
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VERBOSE_MODE=0 # no console logging
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LOGFILE="$ddns_logdir/$SECTION_ID.log"
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DATFILE="$ddns_rundir/$SECTION_ID.$$.dat" # save stdout data of WGet and other extern programs called
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ERRFILE="$ddns_rundir/$SECTION_ID.$$.err" # save stderr output of WGet and other extern programs called
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DDNSPRG="/usr/lib/ddns/dynamic_dns_updater.sh"
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VERBOSE=0 # no console logging
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# global variables normally set by reading DDNS UCI configuration
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use_syslog=0 # no syslog
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use_logfile=0 # by default no logfile, can be changed here
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use_logfile=0 # no logfile
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use_ipv6=0 # Use IPv6 - default IPv4
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force_ipversion=0 # Force IP Version - default 0 - No
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force_dnstcp=0 # Force TCP on DNS - default 0 - No
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is_glue=0 # Is glue record - default 0 - No
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use_https=0 # not needed but must be set
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while getopts ":6d:fghi:l:n:p:s:S:tu:Lv:V" OPT; do
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case "$OPT" in
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6) use_ipv6=1;;
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d) dns_server="$OPTARG";;
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f) force_ipversion=1;;
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g) is_glue=1;;
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i) ip_interface="$OPTARG"; ip_source="interface";;
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l) lookup_host="$OPTARG";;
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n) ip_network="$OPTARG"; ip_source="network";;
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p) proxy="$OPTARG";;
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s) ip_script="$OPTARG"; ip_source="script";;
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t) force_dnstcp=1;;
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u) ip_url="$OPTARG"; ip_source="web";;
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h) usage; exit 255;;
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L) use_logfile=1;;
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v) VERBOSE=$OPTARG;;
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S) SECTION=$OPTARG;;
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V) printf %s\\n "ddns-scripts $VERSION"; exit 255;;
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:) usage_err "option -$OPTARG missing argument";;
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\?) usage_err "invalid option -$OPTARG";;
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*) usage_err "unhandled option -$OPT $OPTARG";;
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esac
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done
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shift $((OPTIND - 1 )) # OPTIND is 1 based
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[ $# -eq 0 ] && usage_err "missing command"
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__RET=0
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case "$1" in
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get_registered_ip)
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local IP
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domain=$2 # Hostname/Domain
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use_ipv6=${3:-"0"} # Use IPv6 - default IPv4
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force_ipversion=${4:-"0"} # Force IP Version - default 0 - No
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force_dnstcp=${5:-"0"} # Force TCP on DNS - default 0 - No
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dns_server=${6:-""} # DNS server - default No DNS
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[ -z "$lookup_host" ] && usage_err "command 'get_registered_ip': 'lookup_host' not set"
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write_log 7 "-----> get_registered_ip IP"
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IP=""
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get_registered_ip IP
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__RET=$?
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[ $__RET -ne 0 ] && IP=""
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echo -n "$IP" # suppress LF
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printf "%s" "$IP"
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;;
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verify_dns)
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# $2 : dns-server to verify # no need for force_dnstcp because
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# verify with nc (netcat) uses tcp anyway
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use_ipv6=${3:-"0"} # Use IPv6 - default IPv4
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force_ipversion=${4:-"0"} # Force IP Version - default 0 - No
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write_log 7 "-----> verify_dns '$2'"
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verify_dns "$2"
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[ -z "$dns_server" ] && usage_err "command 'verify_dns': 'dns_server' not set"
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write_log 7 "-----> verify_dns '$dns_server'"
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verify_dns "$dns_server"
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__RET=$?
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;;
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verify_proxy)
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# $2 : proxy string to verify
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use_ipv6=${3:-"0"} # Use IPv6 - default IPv4
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force_ipversion=${4:-"0"} # Force IP Version - default 0 - No
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write_log 7 "-----> verify_proxy '$2'"
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verify_proxy "$2"
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[ -z "$proxy" ] && usage_err "command 'verify_proxy': 'proxy' not set"
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write_log 7 "-----> verify_proxy '$proxy'"
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verify_proxy "$proxy"
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__RET=$?
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;;
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get_local_ip)
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local IP
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use_ipv6="$2" # Use IPv6
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ip_source="$3" # IP source
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ip_network="$4" # set if source = "network" otherwise "-"
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ip_url="$5" # set if source = "web" otherwise "-"
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ip_interface="$6" # set if source = "interface" itherwiase "-"
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ip_script="$7" # set if source = "script" otherwise "-"
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proxy="$8" # proxy if set
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force_ipversion="0" # not needed but must be set
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use_https="0" # not needed but must be set
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[ -z "$ip_source" ] && usage_err "command 'get_local_ip': 'ip_source' not set"
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[ -n "$proxy" -a "$ip_source" = "web" ] && {
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# proxy defined, used for ip_source=web
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export HTTP_PROXY="http://$proxy"
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@@ -80,17 +132,34 @@ case "$1" in
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export https_proxy="http://$proxy"
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}
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# don't need IP only the return code
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[ "$ip_source" = "web" -o "$ip_source" = "script" ] && {
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IP=""
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if [ "$ip_source" = "web" -o "$ip_source" = "script" ]; then
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# we wait only 3 seconds for an
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# answer from "web" or "script"
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write_log 7 "-----> timeout 3 -- get_local_ip IP"
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timeout 3 -- get_local_ip IP
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} || {
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else
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write_log 7 "-----> get_local_ip IP"
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get_local_ip IP
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}
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fi
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__RET=$?
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;;
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start)
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[ -z "$SECTION" ] && usage_err "command 'start': 'SECTION' not set"
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if [ $VERBOSE -eq 0 ]; then # start in background
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$DDNSPRG -v 0 -S $SECTION -- start &
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else
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$DDNSPRG -v $VERBOSE -S $SECTION -- start
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fi
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;;
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reload)
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$DDNSPRG -- reload
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;;
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restart)
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$DDNSPRG -- stop
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sleep 1
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$DDNSPRG -- start
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;;
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*)
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__RET=255
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;;
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@@ -99,4 +168,4 @@ esac
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# remove out and err file
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[ -f $DATFILE ] && rm -f $DATFILE
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[ -f $ERRFILE ] && rm -f $ERRFILE
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return $__RET
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return $__RET
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