--- /dev/null
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=ddns-scripts
+PKG_VERSION:=1.0.0
+PKG_RELEASE:=22
+
+PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/ddns-scripts
+ SECTION:=net
+ CATEGORY:=Network
+ SUBMENU:=IP Addresses and Names
+ TITLE:=Dynamic DNS Scripts
+ PKGARCH:=all
+endef
+
+define Package/ddns-scripts/description
+ A highly configurable set of scripts for doing
+ dynamic dns updates
+endef
+
+define Build/Prepare
+endef
+
+define Build/Configure
+endef
+
+define Build/Compile
+endef
+
+define Package/ddns-scripts/conffiles
+/etc/config/ddns
+endef
+
+define Package/ddns-scripts/install
+ $(INSTALL_DIR) $(1)
+ $(CP) ./files/* $(1)/
+ $(INSTALL_DIR) $(1)/etc/init.d
+ $(INSTALL_BIN) ./files/etc/init.d/ddns $(1)/etc/init.d/
+endef
+
+$(eval $(call BuildPackage,ddns-scripts))
--- /dev/null
+#################################################################
+# In order to enable dynamic dns you need at least one section,
+# and in that seciton the "enabled" option must be set to one
+#
+# Each section represents an update to a different service
+#
+# You specify your domain name, your username and your password
+# with the optins "domain", "username" and "password" respectively
+#
+# Next you need to specify the name of the service you are
+# connecting to "eg. dyndns.org". The format of the update
+# urls for several different dynamic dns services is specified
+# in the /usr/lib/ddns/services file. This list is hardly complete
+# as there are many, many different dynamic dns services. If your
+# service is on the list you can merely specify it with the
+# "service_name" option. Otherwise you will need to determine
+# the format of the url to update with. You can either add an
+# entry to the /usr/lib/ddns/services file or specify this with
+# the "update_url" option.
+#
+# We also need to specify the source of the ip address to associate with
+# your domain. The "ip_source" option can be "network", "interface"
+# or "web", with "network" as the default.
+#
+# If "ip_source" is "network" you specify a network section in your
+# /etc/network config file (e.g. "wan", which is the default) with
+# the "ip_network" option. If you specify "wan", you will update
+# with whatever the ip for your wan is.
+#
+# If "ip_source" is "interface" you specify a hardware interface
+# (e.g. "eth1") and whatever the current ip of this interface is
+# will be associated with the domain when an update is performed.
+#
+# If "ip_source" is "script" you specify a script to obtain ip address.
+# The "ip_script" option should contain path to your script.
+#
+# The last possibility is that "ip_source" is "web", which means
+# that in order to obtain our ip address we will connect to a
+# website, and the first valid ip address listed on that page
+# will be assumed to be ours. If you are behind another firewall
+# this is the best option since none of the local networks or
+# interfaces will have the external ip. The website to connect
+# to is specified by the "ip_url" option. You may specify multiple
+# urls in the option, separated by whitespace.
+#
+# Finally we need to specify how often to check whether we need
+# to check whether the ip address has changed (and if so update
+# it) and how often we need to force an update ( many services
+# will expire your domain if you don't connect and do an update
+# every so often). Use the "check_interval" to specify how
+# often to check whether an update is necessary, the "retry_interval"
+# to specify how often to retry in case the update has failed, and
+# the "force_interval" option to specify how often to force an
+# update. Specify the units for these values with the "check_unit",
+# the "retry_init" and the "force_unit" options. Units can be
+# "days", "hours", "minutes" or "seconds". The default force_unit
+# is hours, the default retry_unit is seconds and the default
+# check_unit is seconds. The default check_interval is 600 seconds,
+# or ten minutes. The default retry_interval is 60 seconds, or one
+# minute. The default force_interval is 72 hours or 3 days.
+#
+#
+#########################################################
+
+config service "myddns"
+ option enabled "0"
+ option interface "wan"
+ option use_syslog "1"
+
+ option service_name "dyndns.org"
+ option domain "mypersonaldomain.dyndns.org"
+ option username "myusername"
+ option password "mypassword"
+ option use_https "0"
+
+ option force_interval "72"
+ option force_unit "hours"
+ option check_interval "10"
+ option check_unit "minutes"
+ option retry_interval "60"
+ option retry_unit "seconds"
+
+ #option ip_source "network"
+ #option ip_network "wan"
+
+ #option ip_source "interface"
+ #option ip_interface "eth0.1"
+
+ #option ip_source "script"
+ #option ip_script "path to your scrip"
+
+ option ip_source "web"
+ option ip_url "http://checkip.dyndns.com/"
+
+ #option update_url "http://[USERNAME]:[PASSWORD]@members.dyndns.org/nic/update?hostname=[DOMAIN]&myip=[IP]"
+
+
--- /dev/null
+#!/bin/sh
+
+. /usr/lib/ddns/dynamic_dns_functions.sh
+
+if [ "$ACTION" = "ifup" ]; then
+ start_daemon_for_all_ddns_sections "$INTERFACE"
+fi
+
+
--- /dev/null
+#!/bin/sh /etc/rc.common
+START=95
+
+start() {
+ . /usr/lib/ddns/dynamic_dns_functions.sh
+ start_daemon_for_all_ddns_sections
+}
+
+stop() {
+ killall -9 dynamic_dns_updater.sh
+}
+
--- /dev/null
+# /usr/lib/dynamic_dns/dynamic_dns_functions.sh
+#
+# Written by Eric Paul Bishop, Janary 2008
+# Distributed under the terms of the GNU General Public License (GPL) version 2.0
+#
+# This script is (loosely) based on the one posted by exobyte in the forums here:
+# http://forum.openwrt.org/viewtopic.php?id=14040
+
+
+
+. /lib/functions.sh
+. /lib/functions/network.sh
+
+
+#loads all options for a given package and section
+#also, sets all_option_variables to a list of the variable names
+load_all_config_options()
+{
+ pkg_name="$1"
+ section_id="$2"
+
+ ALL_OPTION_VARIABLES=""
+ # this callback loads all the variables
+ # in the section_id section when we do
+ # config_load. We need to redefine
+ # the option_cb for different sections
+ # so that the active one isn't still active
+ # after we're done with it. For reference
+ # the $1 variable is the name of the option
+ # and $2 is the name of the section
+ config_cb()
+ {
+ if [ ."$2" = ."$section_id" ]; then
+ option_cb()
+ {
+ ALL_OPTION_VARIABLES="$ALL_OPTION_VARIABLES $1"
+ }
+ else
+ option_cb() { return 0; }
+ fi
+ }
+
+
+ config_load "$pkg_name"
+ for var in $ALL_OPTION_VARIABLES
+ do
+ config_get "$var" "$section_id" "$var"
+ done
+}
+
+
+get_current_ip()
+{
+
+ #if ip source is not defined, assume we want to get ip from wan
+ if [ "$ip_source" != "interface" ] && [ "$ip_source" != "web" ] && [ "$ip_source" != "script" ]
+ then
+ ip_source="network"
+ fi
+
+ if [ "$ip_source" = "network" ]
+ then
+ if [ -z "$ip_network" ]
+ then
+ ip_network="wan"
+ fi
+ fi
+
+ current_ip='';
+ if [ "$ip_source" = "network" ]
+ then
+ network_get_ipaddr current_ip "$ip_network" || return
+ elif [ "$ip_source" = "interface" ]
+ then
+ current_ip=$(ifconfig $ip_interface | grep -o 'inet addr:[0-9.]*' | grep -o "$ip_regex")
+ elif [ "$ip_source" = "script" ]
+ then
+ # get ip from script
+ current_ip=$($ip_script)
+ else
+ # get ip from web
+ # we check each url in order in ip_url variable, and if no ips are found we use dyndns ip checker
+ # ip is set to FIRST expression in page that matches the ip_regex regular expression
+ for addr in $ip_url
+ do
+ if [ -z "$current_ip" ]
+ then
+ current_ip=$(echo $( wget -O - $addr 2>/dev/null) | grep -o "$ip_regex")
+ fi
+ done
+
+ #here we hard-code the dyndns checkip url in case no url was specified
+ if [ -z "$current_ip" ]
+ then
+ current_ip=$(echo $( wget -O - http://checkip.dyndns.org 2>/dev/null) | grep -o "$ip_regex")
+ fi
+ fi
+
+ echo "$current_ip"
+}
+
+
+verbose_echo()
+{
+ if [ "$verbose_mode" = 1 ]
+ then
+ echo $1
+ fi
+}
+
+syslog_echo()
+{
+ if [ "$use_syslog" = 1 ]
+ then
+ echo $1|logger -t ddns-scripts-$service_id
+ fi
+}
+
+start_daemon_for_all_ddns_sections()
+{
+ local event_interface="$1"
+
+ SECTIONS=""
+ config_cb()
+ {
+ SECTIONS="$SECTIONS $2"
+ }
+ config_load "ddns"
+
+ for section in $SECTIONS
+ do
+ local iface
+ config_get iface "$section" interface "wan"
+ [ "$iface" = "$event_interface" ] || continue
+ /usr/lib/ddns/dynamic_dns_updater.sh $section 0 > /dev/null 2>&1 &
+ done
+}
+
+monotonic_time()
+{
+ local uptime
+ read uptime < /proc/uptime
+ echo "${uptime%%.*}"
+}
--- /dev/null
+#!/bin/sh
+# /usr/lib/dynamic_dns/dynamic_dns_updater.sh
+#
+# Written by Eric Paul Bishop, Janary 2008
+# Distributed under the terms of the GNU General Public License (GPL) version 2.0
+#
+# This script is (loosely) based on the one posted by exobyte in the forums here:
+# http://forum.openwrt.org/viewtopic.php?id=14040
+#
+
+. /usr/lib/ddns/dynamic_dns_functions.sh
+
+
+service_id=$1
+if [ -z "$service_id" ]
+then
+ echo "ERRROR: You must specify a service id (the section name in the /etc/config/ddns file) to initialize dynamic DNS."
+ return 1
+fi
+
+#default mode is verbose_mode, but easily turned off with second parameter
+verbose_mode="1"
+if [ -n "$2" ]
+then
+ verbose_mode="$2"
+fi
+
+###############################################################
+# Leave this comment here, to clearly document variable names
+# that are expected/possible
+#
+# Now use load_all_config_options to load config
+# options, which is a much more flexible solution.
+#
+#
+#config_load "ddns"
+#
+#config_get enabled $service_id enabled
+#config_get service_name $service_id service_name
+#config_get update_url $service_id update_url
+#
+#
+#config_get username $service_id username
+#config_get password $service_id password
+#config_get domain $service_id domain
+#
+#
+#config_get use_https $service_id use_https
+#config_get use_syslog $service_id use_syslog
+#config_get cacert $service_id cacert
+#
+#config_get ip_source $service_id ip_source
+#config_get ip_interface $service_id ip_interface
+#config_get ip_network $service_id ip_network
+#config_get ip_url $service_id ip_url
+#
+#config_get force_interval $service_id force_interval
+#config_get force_unit $service_id force_unit
+#
+#config_get check_interval $service_id check_interval
+#config_get check_unit $service_id check_unit
+#########################################################
+load_all_config_options "ddns" "$service_id"
+
+
+#some defaults
+if [ -z "$check_interval" ]
+then
+ check_interval=600
+fi
+
+if [ -z "$retry_interval" ]
+then
+ retry_interval=60
+fi
+
+if [ -z "$check_unit" ]
+then
+ check_unit="seconds"
+fi
+
+if [ -z "$force_interval" ]
+then
+ force_interval=72
+fi
+
+if [ -z "$force_unit" ]
+then
+ force_unit="hours"
+fi
+
+if [ -z $use_syslog ]
+then
+ use_syslog=0
+fi
+
+if [ -z "$use_https" ]
+then
+ use_https=0
+fi
+
+
+#some constants
+
+retrieve_prog="/usr/bin/wget -O - ";
+if [ "x$use_https" = "x1" ]
+then
+ /usr/bin/wget --version 2>&1 |grep -q "\+ssl"
+ if [ $? -eq 0 ]
+ then
+ if [ -f "$cacert" ]
+ then
+ retrieve_prog="${retrieve_prog}--ca-certificate=${cacert} "
+ elif [ -d "$cacert" ]
+ then
+ retrieve_prog="${retrieve_prog}--ca-directory=${cacert} "
+ fi
+ else
+ retrieve_prog="/usr/bin/curl "
+ if [ -f "$cacert" ]
+ then
+ retrieve_prog="${retrieve_prog}--cacert $cacert "
+ elif [ -d "$cacert" ]
+ then
+ retrieve_prog="${retrieve_prog}--capath $cacert "
+ fi
+ fi
+fi
+
+
+service_file="/usr/lib/ddns/services"
+
+ip_regex="[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}"
+
+NEWLINE_IFS='
+'
+
+#determine what update url we're using if the service_name is supplied
+if [ -n "$service_name" ]
+then
+ #remove any lines not containing data, and then make sure fields are enclosed in double quotes
+ quoted_services=$(cat $service_file | grep "^[\t ]*[^#]" | awk ' gsub("\x27", "\"") { if ($1~/^[^\"]*$/) $1="\""$1"\"" }; { if ( $NF~/^[^\"]*$/) $NF="\""$NF"\"" }; { print $0 }' )
+
+
+ #echo "quoted_services = $quoted_services"
+ OLD_IFS=$IFS
+ IFS=$NEWLINE_IFS
+ for service_line in $quoted_services
+ do
+ #grep out proper parts of data and use echo to remove quotes
+ next_name=$(echo $service_line | grep -o "^[\t ]*\"[^\"]*\"" | xargs -r -n1 echo)
+ next_url=$(echo $service_line | grep -o "\"[^\"]*\"[\t ]*$" | xargs -r -n1 echo)
+
+ if [ "$next_name" = "$service_name" ]
+ then
+ update_url=$next_url
+ fi
+ done
+ IFS=$OLD_IFS
+fi
+
+if [ "x$use_https" = x1 ]
+then
+ update_url=$(echo $update_url | sed -e 's/^http:/https:/')
+fi
+
+verbose_echo "update_url=$update_url"
+
+#if this service isn't enabled then quit
+if [ "$enabled" != "1" ]
+then
+ return 0
+fi
+
+#compute update interval in seconds
+case "$force_unit" in
+ "days" )
+ force_interval_seconds=$(($force_interval*60*60*24))
+ ;;
+ "hours" )
+ force_interval_seconds=$(($force_interval*60*60))
+ ;;
+ "minutes" )
+ force_interval_seconds=$(($force_interval*60))
+ ;;
+ "seconds" )
+ force_interval_seconds=$force_interval
+ ;;
+ * )
+ #default is hours
+ force_interval_seconds=$(($force_interval*60*60))
+ ;;
+esac
+
+
+#compute check interval in seconds
+case "$check_unit" in
+ "days" )
+ check_interval_seconds=$(($check_interval*60*60*24))
+ ;;
+ "hours" )
+ check_interval_seconds=$(($check_interval*60*60))
+ ;;
+ "minutes" )
+ check_interval_seconds=$(($check_interval*60))
+ ;;
+ "seconds" )
+ check_interval_seconds=$check_interval
+ ;;
+ * )
+ #default is seconds
+ check_interval_seconds=$check_interval
+ ;;
+esac
+
+
+#compute retry interval in seconds
+case "$retry_unit" in
+ "days" )
+ retry_interval_seconds=$(($retry_interval*60*60*24))
+ ;;
+ "hours" )
+ retry_interval_seconds=$(($retry_interval*60*60))
+ ;;
+ "minutes" )
+ retry_interval_seconds=$(($retry_interval*60))
+ ;;
+ "seconds" )
+ retry_interval_seconds=$retry_interval
+ ;;
+ * )
+ #default is seconds
+ retry_interval_seconds=$retry_interval
+ ;;
+esac
+
+
+verbose_echo "force seconds = $force_interval_seconds"
+verbose_echo "check seconds = $check_interval_seconds"
+
+#kill old process if it exists & set new pid file
+if [ -d /var/run/dynamic_dns ]
+then
+ #if process is already running, stop it
+ if [ -e "/var/run/dynamic_dns/$service_id.pid" ]
+ then
+ old_pid=$(cat /var/run/dynamic_dns/$service_id.pid)
+ test_match=$(ps | grep "^[\t ]*$old_pid")
+ verbose_echo "old process id (if it exists) = \"$test_match\""
+ if [ -n "$test_match" ]
+ then
+ kill $old_pid
+ fi
+ fi
+
+else
+ #make dir since it doesn't exist
+ mkdir /var/run/dynamic_dns
+fi
+echo $$ > /var/run/dynamic_dns/$service_id.pid
+
+
+
+
+#determine when the last update was
+current_time=$(monotonic_time)
+last_update=$(( $current_time - (2*$force_interval_seconds) ))
+if [ -e "/var/run/dynamic_dns/$service_id.update" ]
+then
+ last_update=$(cat /var/run/dynamic_dns/$service_id.update)
+fi
+time_since_update=$(($current_time - $last_update))
+
+
+human_time_since_update=$(( $time_since_update / ( 60 * 60 ) ))
+verbose_echo "time_since_update = $human_time_since_update hours"
+
+
+
+#do update and then loop endlessly, checking ip every check_interval and forcing an updating once every force_interval
+
+while [ true ]
+do
+ registered_ip=$(echo $(nslookup "$domain" 2>/dev/null) | grep -o "Name:.*" | grep -o "$ip_regex")
+ current_ip=$(get_current_ip)
+
+
+ current_time=$(monotonic_time)
+ time_since_update=$(($current_time - $last_update))
+
+ syslog_echo "Running IP check ..."
+ verbose_echo "Running IP check..."
+ verbose_echo "current system ip = $current_ip"
+ verbose_echo "registered domain ip = $registered_ip"
+
+
+ if [ "$current_ip" != "$registered_ip" ] || [ $force_interval_seconds -lt $time_since_update ]
+ then
+ verbose_echo "update necessary, performing update ..."
+
+ #do replacement
+ final_url=$update_url
+ for option_var in $ALL_OPTION_VARIABLES
+ do
+ if [ "$option_var" != "update_url" ]
+ then
+ replace_name=$(echo "\[$option_var\]" | tr 'a-z' 'A-Z')
+ replace_value=$(eval echo "\$$option_var")
+ replace_value=$(echo $replace_value | sed -f /usr/lib/ddns/url_escape.sed)
+ final_url=$(echo $final_url | sed s^"$replace_name"^"$replace_value"^g )
+ fi
+ done
+ final_url=$(echo $final_url | sed s^"\[HTTPAUTH\]"^"${username//^/\\^}${password:+:${password//^/\\^}}"^g )
+ final_url=$(echo $final_url | sed s/"\[IP\]"/"$current_ip"/g )
+
+
+ verbose_echo "updating with url=\"$final_url\""
+
+ #here we actually connect, and perform the update
+ update_output=$( $retrieve_prog "$final_url" )
+ if [ $? -gt 0 ]
+ then
+ syslog_echo "update failed, retrying in $retry_interval_seconds seconds"
+ verbose_echo "update failed"
+ sleep $retry_interval_seconds
+ continue
+ fi
+ syslog_echo "Update successful"
+ verbose_echo "Update Output:"
+ verbose_echo "$update_output"
+ verbose_echo ""
+
+ #save the time of the update
+ current_time=$(monotonic_time)
+ last_update=$current_time
+ time_since_update='0'
+ registered_ip=$current_ip
+
+ human_time=$(date)
+ verbose_echo "update complete, time is: $human_time"
+
+ echo "$last_update" > "/var/run/dynamic_dns/$service_id.update"
+ else
+ human_time=$(date)
+ human_time_since_update=$(( $time_since_update / ( 60 * 60 ) ))
+ verbose_echo "update unnecessary"
+ verbose_echo "time since last update = $human_time_since_update hours"
+ verbose_echo "the time is now $human_time"
+ fi
+
+ #sleep for 10 minutes, then re-check ip && time since last update
+ sleep $check_interval_seconds
+done
+
+#should never get here since we're a daemon, but I'll throw it in anyway
+return 0
+
+
+
+
--- /dev/null
+#!/bin/sh
+# /usr/lib/dynamic_dns/dynamic_dns_updater.sh
+#
+# Written by Eric Paul Bishop, Janary 2008
+# Distributed under the terms of the GNU General Public License (GPL) version 2.0
+#
+# This script is (loosely) based on the one posted by exobyte in the forums here:
+# http://forum.openwrt.org/viewtopic.php?id=14040
+#
+
+. /usr/lib/ddns/dynamic_dns_functions.sh
+
+
+service_id=$1
+if [ -z "$service_id" ]
+then
+ echo "ERRROR: You must specify a service id (the section name in the /etc/config/ddns file) to initialize dynamic DNS."
+ return 1
+fi
+
+#default mode is verbose_mode, but easily turned off with second parameter
+verbose_mode="1"
+if [ -n "$2" ]
+then
+ verbose_mode="$2"
+fi
+
+###############################################################
+# Leave this comment here, to clearly document variable names
+# that are expected/possible
+#
+# Now use load_all_config_options to load config
+# options, which is a much more flexible solution.
+#
+#
+#config_load "ddns"
+#
+#config_get enabled $service_id enabled
+#config_get service_name $service_id service_name
+#config_get update_url $service_id update_url
+#
+#
+#config_get username $service_id username
+#config_get password $service_id password
+#config_get domain $service_id domain
+#
+#
+#config_get use_https $service_id use_https
+#config_get use_syslog $service_id use_syslog
+#config_get cacert $service_id cacert
+#
+#config_get ip_source $service_id ip_source
+#config_get ip_interface $service_id ip_interface
+#config_get ip_network $service_id ip_network
+#config_get ip_url $service_id ip_url
+#
+#config_get force_interval $service_id force_interval
+#config_get force_unit $service_id force_unit
+#
+#config_get check_interval $service_id check_interval
+#config_get check_unit $service_id check_unit
+#########################################################
+load_all_config_options "ddns" "$service_id"
+
+
+#some defaults
+if [ -z "$check_interval" ]
+then
+ check_interval=600
+fi
+
+if [ -z "$retry_interval" ]
+then
+ retry_interval=60
+fi
+
+if [ -z "$check_unit" ]
+then
+ check_unit="seconds"
+fi
+
+if [ -z "$force_interval" ]
+then
+ force_interval=72
+fi
+
+if [ -z "$force_unit" ]
+then
+ force_unit="hours"
+fi
+
+if [ -z $use_syslog ]
+then
+ use_syslog=0
+fi
+
+if [ -z "$use_https" ]
+then
+ use_https=0
+fi
+
+
+#some constants
+
+retrieve_prog="/usr/bin/wget -O - ";
+if [ "x$use_https" = "x1" ]
+then
+ /usr/bin/wget --version 2>&1 |grep -q "\+ssl"
+ if [ $? -eq 0 ]
+ then
+ if [ -f "$cacert" ]
+ then
+ retrieve_prog="${retrieve_prog}--ca-certificate=${cacert} "
+ elif [ -d "$cacert" ]
+ then
+ retrieve_prog="${retrieve_prog}--ca-directory=${cacert} "
+ fi
+ else
+ retrieve_prog="/usr/bin/curl "
+ if [ -f "$cacert" ]
+ then
+ retrieve_prog="${retrieve_prog}--cacert $cacert "
+ elif [ -d "$cacert" ]
+ then
+ retrieve_prog="${retrieve_prog}--capath $cacert "
+ fi
+ fi
+fi
+
+
+service_file="/usr/lib/ddns/services"
+
+ip_regex="[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}"
+
+NEWLINE_IFS='
+'
+
+#determine what update url we're using if the service_name is supplied
+if [ -n "$service_name" ]
+then
+ #remove any lines not containing data, and then make sure fields are enclosed in double quotes
+ quoted_services=$(cat $service_file | grep "^[\t ]*[^#]" | awk ' gsub("\x27", "\"") { if ($1~/^[^\"]*$/) $1="\""$1"\"" }; { if ( $NF~/^[^\"]*$/) $NF="\""$NF"\"" }; { print $0 }' )
+
+
+ #echo "quoted_services = $quoted_services"
+ OLD_IFS=$IFS
+ IFS=$NEWLINE_IFS
+ for service_line in $quoted_services
+ do
+ #grep out proper parts of data and use echo to remove quotes
+ next_name=$(echo $service_line | grep -o "^[\t ]*\"[^\"]*\"" | xargs -r -n1 echo)
+ next_url=$(echo $service_line | grep -o "\"[^\"]*\"[\t ]*$" | xargs -r -n1 echo)
+
+ if [ "$next_name" = "$service_name" ]
+ then
+ update_url=$next_url
+ fi
+ done
+ IFS=$OLD_IFS
+fi
+
+if [ "x$use_https" = x1 ]
+then
+ update_url=$(echo $update_url | sed -e 's/^http:/https:/')
+fi
+
+verbose_echo "update_url=$update_url"
+
+#if this service isn't enabled then quit
+if [ "$enabled" != "1" ]
+then
+ return 0
+fi
+
+#compute update interval in seconds
+case "$force_unit" in
+ "days" )
+ force_interval_seconds=$(($force_interval*60*60*24))
+ ;;
+ "hours" )
+ force_interval_seconds=$(($force_interval*60*60))
+ ;;
+ "minutes" )
+ force_interval_seconds=$(($force_interval*60))
+ ;;
+ "seconds" )
+ force_interval_seconds=$force_interval
+ ;;
+ * )
+ #default is hours
+ force_interval_seconds=$(($force_interval*60*60))
+ ;;
+esac
+
+
+#compute check interval in seconds
+case "$check_unit" in
+ "days" )
+ check_interval_seconds=$(($check_interval*60*60*24))
+ ;;
+ "hours" )
+ check_interval_seconds=$(($check_interval*60*60))
+ ;;
+ "minutes" )
+ check_interval_seconds=$(($check_interval*60))
+ ;;
+ "seconds" )
+ check_interval_seconds=$check_interval
+ ;;
+ * )
+ #default is seconds
+ check_interval_seconds=$check_interval
+ ;;
+esac
+
+
+#compute retry interval in seconds
+case "$retry_unit" in
+ "days" )
+ retry_interval_seconds=$(($retry_interval*60*60*24))
+ ;;
+ "hours" )
+ retry_interval_seconds=$(($retry_interval*60*60))
+ ;;
+ "minutes" )
+ retry_interval_seconds=$(($retry_interval*60))
+ ;;
+ "seconds" )
+ retry_interval_seconds=$retry_interval
+ ;;
+ * )
+ #default is seconds
+ retry_interval_seconds=$retry_interval
+ ;;
+esac
+
+
+verbose_echo "force seconds = $force_interval_seconds"
+verbose_echo "check seconds = $check_interval_seconds"
+
+#kill old process if it exists & set new pid file
+if [ -d /var/run/dynamic_dns ]
+then
+ #if process is already running, stop it
+ if [ -e "/var/run/dynamic_dns/$service_id.pid" ]
+ then
+ old_pid=$(cat /var/run/dynamic_dns/$service_id.pid)
+ test_match=$(ps | grep "^[\t ]*$old_pid")
+ verbose_echo "old process id (if it exists) = \"$test_match\""
+ if [ -n "$test_match" ]
+ then
+ kill $old_pid
+ fi
+ fi
+
+else
+ #make dir since it doesn't exist
+ mkdir /var/run/dynamic_dns
+fi
+echo $$ > /var/run/dynamic_dns/$service_id.pid
+
+
+
+
+#determine when the last update was
+current_time=$(monotonic_time)
+last_update=$(( $current_time - (2*$force_interval_seconds) ))
+if [ -e "/var/run/dynamic_dns/$service_id.update" ]
+then
+ last_update=$(cat /var/run/dynamic_dns/$service_id.update)
+fi
+time_since_update=$(($current_time - $last_update))
+
+
+human_time_since_update=$(( $time_since_update / ( 60 * 60 ) ))
+verbose_echo "time_since_update = $human_time_since_update hours"
+
+
+
+#do update and then loop endlessly, checking ip every check_interval and forcing an updating once every force_interval
+
+while [ true ]
+do
+ registered_ip=$(echo $(nslookup "$domain" 2>/dev/null) | grep -o "Name:.*" | grep -o "$ip_regex")
+ current_ip=$(get_current_ip)
+
+
+ current_time=$(monotonic_time)
+ time_since_update=$(($current_time - $last_update))
+
+ syslog_echo "Running IP check ..."
+ verbose_echo "Running IP check..."
+ verbose_echo "current system ip = $current_ip"
+ verbose_echo "registered domain ip = $registered_ip"
+
+
+ if [ "$current_ip" != "$registered_ip" ] || [ $force_interval_seconds -lt $time_since_update ]
+ then
+ verbose_echo "update necessary, performing update ..."
+
+ #do replacement
+ final_url=$update_url
+ for option_var in $ALL_OPTION_VARIABLES
+ do
+ if [ "$option_var" != "update_url" ]
+ then
+ replace_name=$(echo "\[$option_var\]" | tr 'a-z' 'A-Z')
+ replace_value=$(eval echo "\$$option_var")
+ replace_value=$(echo $replace_value | sed -f /usr/lib/ddns/url_escape.sed)
+ final_url=$(echo $final_url | sed s^"$replace_name"^"$replace_value"^g )
+ fi
+ done
+ final_url=$(echo $final_url | sed s^"\[HTTPAUTH\]"^"${username//^/\\^}${password:+:${password//^/\\^}}"^g )
+ final_url=$(echo $final_url | sed s/"\[IP\]"/"$current_ip"/g )
+
+
+ verbose_echo "updating with url=\"$final_url\""
+
+ #here we actually connect, and perform the update
+ update_output=$( $retrieve_prog "$final_url" )
+ if [ $? -gt 0 ]
+ then
+ syslog_echo "update failed, retrying in $retry_interval_seconds seconds"
+ verbose_echo "update failed"
+ sleep $retry_interval_seconds
+ continue
+ fi
+ syslog_echo "Update successful"
+ verbose_echo "Update Output:"
+ verbose_echo "$update_output"
+ verbose_echo ""
+
+ #save the time of the update
+ current_time=$(monotonic_time)
+ last_update=$current_time
+ time_since_update='0'
+ registered_ip=$current_ip
+
+ human_time=$(date)
+ verbose_echo "update complete, time is: $human_time"
+
+ echo "$last_update" > "/var/run/dynamic_dns/$service_id.update"
+ else
+ human_time=$(date)
+ human_time_since_update=$(( $time_since_update / ( 60 * 60 ) ))
+ verbose_echo "update unnecessary"
+ verbose_echo "time since last update = $human_time_since_update hours"
+ verbose_echo "the time is now $human_time"
+ fi
+
+ #sleep for 10 minutes, then re-check ip && time since last update
+ sleep $check_interval_seconds
+done
+
+#should never get here since we're a daemon, but I'll throw it in anyway
+return 0
+
+
+
+
--- /dev/null
+# This file contains the update urls for various dynamic dns services.
+# Column one contains the service name, column two contains the update url.
+# within the update url there are 4 variables you can use: [USERNAME],
+# [PASSWORD], [DOMAIN] and [IP]. These are substituted for the username,
+# password, and domain name specified in the /etc/config/ddns file when an
+# update is performed. The IP is substituted for the current ip address of the
+# router. These variables are case sensitive, while urls generally are not, so
+# if you need to enter the same text in the url (which seems very unlikely) put
+# that text in lowercase, while the variables should remain in uppercase
+
+"dyndns.org" "http://[USERNAME]:[PASSWORD]@members.dyndns.org/nic/update?hostname=[DOMAIN]&myip=[IP]"
+"changeip.com" "http://[USERNAME]:[PASSWORD]@nic.changeip.com/nic/update?u=[USERNAME]&p=[PASSWORD]&cmd=update&hostname=[DOMAIN]&ip=[IP]"
+"zoneedit.com" "http://[USERNAME]:[PASSWORD]@dynamic.zoneedit.com/auth/dynamic.html?host=[DOMAIN]&dnsto=[IP]"
+"free.editdns.net" "http://dyndns-free.editdns.net/api/dynLinux.php?p=[PASSWORD]&r=[DOMAIN]"
+
+#noip is an alias of no-ip, so allow both names for the same service
+"no-ip.com" "http://[USERNAME]:[PASSWORD]@dynupdate.no-ip.com/nic/update?hostname=[DOMAIN]&myip=[IP]"
+"noip.com" "http://[USERNAME]:[PASSWORD]@dynupdate.no-ip.com/nic/update?hostname=[DOMAIN]&myip=[IP]"
+
+#freedns.afraid.org is weird, you just need an update code, for which we use the password variable
+"freedns.afraid.org" "http://freedns.afraid.org/dynamic/update.php?[PASSWORD]&address=[IP]"
+
+#### ADD YOURS HERE! ######################################################################################
+# #
+# There are TONS of dynamic dns services out there. There's a huge list of them at: #
+# http://www.dmoz.org/Computers/Software/Internet/Servers/Address_Management/Dynamic_DNS_Services/ #
+# If anyone has time they could update this file to be compatible with a bunch of them #
+# #
+###########################################################################################################
+
+# DNS Max and resellers' update urls
+"dnsmax.com" "http://update.dnsmax.com/update/?username=[USERNAME]&password=[PASSWORD]&resellerid=1&clientname=openwrt&clientversion=8.09&protocolversion=2.0&updatehostname=[DOMAIN]&ip=[IP]"
+"thatip.com" "http://update.dnsmax.com/update/?username=[USERNAME]&password=[PASSWORD]&resellerid=2&clientname=openwrt&clientversion=8.09&protocolversion=2.0&updatehostname=[DOMAIN]&ip=[IP]"
+
+# Hurricane Electric Dynamic DNS
+"he.net" "http://[DOMAIN]:[PASSWORD]@dyn.dns.he.net/nic/update?hostname=[DOMAIN]&myip=[IP]"
+
+# DNSdynamic.org
+"dnsdynamic.org" "http://[USERNAME]:[PASSWORD]@www.dnsdynamic.org/api/?hostname=[DOMAIN]&myip=[IP]"
+
+# dnsExit.com free dynamic DNS update url
+"dnsexit.com" "http://www.dnsexit.com/RemoteUpdate.sv?login=[USERNAME]&password=[PASSWORD]&host=[DOMAIN]&myip=[IP]"
+
+# OVH
+"ovh.com" "http://[USERNAME]:[PASSWORD]@www.ovh.com/nic/update?system=dyndns&hostname=[DOMAIN]&myip=[IP]"
+
+# dns-o-matic is a free service by opendns.com for updating multiple hosts and
+# dynamic dns services in one api call. To update all your configured services
+# at once, use "all.dnsomatic.com as the hostname.
+"dnsomatic.com" "http://[USERNAME]:[PASSWORD]@updates.dnsomatic.com/nic/update?hostname=[DOMAIN]&myip=[IP]"
+
+# 3322.org
+"3322.org" "http://[USERNAME]:[PASSWORD]@members.3322.org/dyndns/update?system=dyndns&hostname=[DOMAIN]&myip=[IP]"
+
+# namecheap.com
+"namecheap.com" "http://dynamicdns.park-your-domain.com/update?host=[USERNAME]&domain=[DOMAIN]&password=[PASSWORD]&ip=[IP]"
+
+# easydns.com dynamic DNS
+"easydns.com" "http://[USERNAME]:[PASSWORD]@api.cp.easydns.com/dyn/tomato.php?hostname=[DOMAIN]&myip=[IP]"
+
+# Winco DDNS
+"ddns.com.br" "http://[DOMAIN]:[PASSWORD]@members.ddns.com.br/nic/update?hostname=[DOMAIN]&myip=[IP]"
+
+# Mythic Beasts (https://www.mythic-beasts.com) Dynamic DNS
+"mythic-beasts.com" "http://dnsapi4.mythic-beasts.com/?domain=[USERNAME]&password=[PASSWORD]&command=REPLACE%20[DOMAIN]%2060%20A%20DYNAMIC_IP"
--- /dev/null
+# sed url escaping
+s:%:%25:g
+s: :%20:g
+s:<:%3C:g
+s:>:%3E:g
+s:#:%23:g
+s:{:%7B:g
+s:}:%7D:g
+s:|:%7C:g
+s:\\:%5C:g
+s:\^:%5E:g
+s:~:%7E:g
+s:\[:%5B:g
+s:\]:%5D:g
+s:`:%60:g
+s:;:%3B:g
+s:/:%2F:g
+s:?:%3F:g
+s^:^%3A^g
+s:@:%40:g
+s:=:%3D:g
+s:&:%26:g
+s:\$:%24:g
+s:\!:%21:g
+s:\*:%2A:g
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