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ddns-scripts: Added support for custom update scripts
Squashed commit of the following: commit2701c8868eAuthor: Christian Schoenebeck <christian.schoenebeck@gmail.com> Date: Sun Oct 5 11:01:57 2014 +0200 ddns-scripts: Added support for custom update scripts Sample script Signed-off-by: Christian Schoenebeck <christian.schoenebeck@gmail.com> commite07ecb90faAuthor: Christian Schoenebeck <christian.schoenebeck@gmail.com> Date: Sun Oct 5 11:00:11 2014 +0200 ddns-scripts: Added support for custom update scripts Added support for custom update scripts with new option update_script. function get_service_url() renamed to get_service_data() and extended to detect scripts inside service / service_ipv6 for later use function send_update() modified to support custom update scripts. Signed-off-by: Christian Schoenebeck <christian.schoenebeck@gmail.com> commit39e41b2151Author: Christian Schoenebeck <christian.schoenebeck@gmail.com> Date: Sun Oct 5 10:52:44 2014 +0200 ddns-scripts: Added support for custom update scripts Added support for custom update scripts with new option update_script Signed-off-by: Christian Schoenebeck <christian.schoenebeck@gmail.com> commit33f264768eAuthor: Christian Schoenebeck <christian.schoenebeck@gmail.com> Date: Sun Oct 5 10:48:21 2014 +0200 ddns-scripts: Insert description for NEW option update_script Insert description for NEW option update_script Signed-off-by: Christian Schoenebeck <christian.schoenebeck@gmail.com> commit6f6a60244dAuthor: Christian Schoenebeck <christian.schoenebeck@gmail.com> Date: Sun Oct 5 10:43:52 2014 +0200 ddns-scripts: Update PKG_RELEASE Update_PKG_RELEASE to reflect changes Signed-off-by: Christian Schoenebeck <christian.schoenebeck@gmail.com>
This commit is contained in:
Steven Barth
@@ -6,7 +6,9 @@
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# (Loosely) based on the script on the one posted by exobyte in the forums here:
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# http://forum.openwrt.org/viewtopic.php?id=14040
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#
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# extended and partial rewritten by Christian Schoenebeck in August 2014 to support:
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# extended and partial rewritten in August 2014
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# by Christian Schoenebeck <christian dot schoenebeck at gmail dot com>
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# to support:
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# - IPv6 DDNS services
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# - setting DNS Server to retrieve current IP including TCP transport
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# - Proxy Server to send out updates or retrieving WEB based IP detection
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@@ -215,9 +217,11 @@ __urlencode() {
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# extract update_url for given DDNS Provider from
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# file /usr/lib/ddns/services for IPv4 or from
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# file /usr/lib/ddns/services_ipv6 for IPv6
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get_service_url() {
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get_service_data() {
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# $1 Name of Variable to store url to
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local __LINE __FILE __NAME __URL __SERVICES
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# $2 Name of Variable to store script to
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local __LINE __FILE __NAME __URL __SERVICES __DATA
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local __SCRIPT=""
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local __OLD_IFS=$IFS
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local __NEWLINE_IFS='
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' #__NEWLINE_IFS
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@@ -234,15 +238,20 @@ get_service_url() {
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do
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#grep out proper parts of data and use echo to remove quotes
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__NAME=$(echo $__LINE | grep -o "^[\t ]*\"[^\"]*\"" | xargs -r -n1 echo)
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__URL=$(echo $__LINE | grep -o "\"[^\"]*\"[\t ]*$" | xargs -r -n1 echo)
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__DATA=$(echo $__LINE | grep -o "\"[^\"]*\"[\t ]*$" | xargs -r -n1 echo)
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if [ "$__NAME" = "$service_name" ]; then
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break # found so leave for loop
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fi
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done
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IFS=$__OLD_IFS
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# check is URL or SCRIPT is given
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__URL=$(echo "$__URL" | grep "^http:")
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[ -z "$__URL" ] && __SCRIPT="/usr/lib/ddns/$__DATA"
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eval "$1='$__URL'"
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eval "$2='$__SCRIPT'"
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return 0
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}
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@@ -589,30 +598,35 @@ __do_transfer() {
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send_update() {
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# $1 # IP to set at DDNS service provider
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local __IP __URL __ANSWER __ERR __USER __PASS
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local __IP
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# verify given IP / no private IPv4's / no IPv6 addr starting with fxxx of with ":"
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[ $use_ipv6 -eq 0 ] && __IP=$(echo $1 | grep -v -E "(^0|^10\.|^127|^172\.1[6-9]\.|^172\.2[0-9]\.|^172\.3[0-1]\.|^192\.168)")
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[ $use_ipv6 -eq 1 ] && __IP=$(echo $1 | grep "^[0-9a-eA-E]")
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[ -z "$__IP" ] && critical_error "Invalid or no IP '$1' given"
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[ -z "$__IP" ] && critical_error "Private or invalid or no IP '$1' given"
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# do replaces in URL
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__urlencode __USER "$username" # encode username, might be email or something like this
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__urlencode __PASS "$password" # encode password, might have special chars for security reason
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__URL=$(echo $update_url | sed -e "s#\[USERNAME\]#$__USER#g" -e "s#\[PASSWORD\]#$__PASS#g" \
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-e "s#\[DOMAIN\]#$domain#g" -e "s#\[IP\]#$__IP#g")
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[ $use_https -ne 0 ] && __URL=$(echo $__URL | sed -e 's#^http:#https:#')
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if [ -n "$update_script" ]; then
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verbose_echo " update =: parsing script '$update_script'"
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. $update_script
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else
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local __URL __ANSWER __ERR __USER __PASS
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__do_transfer __ANSWER "$__URL"
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__ERR=$?
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[ $__ERR -gt 0 ] && {
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verbose_echo "\n!!!!!!!!! ERROR =: Error sending update to DDNS Provider\n"
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return 1
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}
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# do replaces in URL
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__urlencode __USER "$username" # encode username, might be email or something like this
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__urlencode __PASS "$password" # encode password, might have special chars for security reason
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__URL=$(echo $update_url | sed -e "s#\[USERNAME\]#$__USER#g" -e "s#\[PASSWORD\]#$__PASS#g" \
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-e "s#\[DOMAIN\]#$domain#g" -e "s#\[IP\]#$__IP#g")
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[ $use_https -ne 0 ] && __URL=$(echo $__URL | sed -e 's#^http:#https:#')
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verbose_echo " update send =: DDNS Provider answered\n$__ANSWER"
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return 0
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__do_transfer __ANSWER "$__URL"
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__ERR=$?
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[ $__ERR -gt 0 ] && {
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verbose_echo "\n!!!!!!!!! ERROR =: Error sending update to DDNS Provider\n"
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return 1
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}
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verbose_echo " update send =: DDNS Provider answered\n$__ANSWER"
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return 0
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fi
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}
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get_local_ip () {
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@@ -6,7 +6,9 @@
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# (Loosely) based on the script on the one posted by exobyte in the forums here:
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# http://forum.openwrt.org/viewtopic.php?id=14040
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#
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# extended and partial rewritten by Christian Schoenebeck in August 2014 to support:
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# extended and partial rewritten in August 2014
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# by Christian Schoenebeck <christian dot schoenebeck at gmail dot com>
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# to support:
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# - IPv6 DDNS services
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# - DNS Server to retrieve registered IP including TCP transport
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# - Proxy Server to send out updates
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@@ -62,6 +64,7 @@ LOGFILE="$LOGDIR/$SECTION_ID.log" # log file
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#
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# service_name Which DDNS service do you use or "custom"
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# update_url URL to use to update your "custom" DDNS service
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# update_script SCRIPT to use to update your "custom" DDNS service
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#
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# domain Your DNS name / replace [DOMAIN] in update_url
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# username Username of your DDNS service account / replace [USERNAME] in update_url
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@@ -161,8 +164,10 @@ verbose_echo " retry counter =: $retry_count times"
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# determine what update url we're using if a service_name is supplied
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# otherwise update_url is set inside configuration (custom service)
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[ -n "$service_name" ] && get_service_url update_url
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[ -z "$update_url" ] && critical_error "no update url found/defined"
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# or update_script is set inside configuration (custom update script)
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[ -n "$service_name" ] && get_service_data update_url update_script
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[ -z "$update_url" -a -z "$update_script" ] && critical_error "no update_url found/defined or no update_script found/defined"
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[ -n "$update_script" -a ! -f "$update_script" ] && critical_error "custom update_script not found"
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#kill old process if it exists & set new pid file
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if [ -d $RUNDIR ]; then
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37
net/ddns-scripts/files/usr/lib/ddns/update_sample.sh
Normal file
37
net/ddns-scripts/files/usr/lib/ddns/update_sample.sh
Normal file
@@ -0,0 +1,37 @@
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# sample script for sending user defined updates
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# 2014 Christian Schoenebeck <christian dot schoenebeck at gmail dot com>
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#
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# activated inside /etc/config/ddns by setting
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#
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# option update_script '/usr/lib/ddns/update_sample.sh'
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#
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# the script is parsed (not executed) inside send_update() function
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# of /usr/lib/ddns/dynamic_dns_functions.sh
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# so you can use all available functions and global variables inside this script
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# already defined in dynamic_dns_updater.sh and dynamic_dns_functions.sh
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#
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# It make sence to define the update url ONLY inside this script
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# because it's anyway unique to the update script
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# otherwise it should work with the default scripts
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#
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# the code here is the copy of the default used inside send_update()
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#
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local __USER __PASS __ANSWER
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# tested with spdns.de
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local __URL="http://[USERNAME]:[PASSWORD]@update.spdns.de/nic/update?hostname=[DOMAIN]&myip=[IP]"
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# do replaces in URL
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__urlencode __USER "$username" # encode username, might be email or something like this
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__urlencode __PASS "$password" # encode password, might have special chars for security reason
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__URL=$(echo $__URL | sed -e "s#\[USERNAME\]#$__USER#g" -e "s#\[PASSWORD\]#$__PASS#g" \
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-e "s#\[DOMAIN\]#$domain#g" -e "s#\[IP\]#$__IP#g")
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[ $use_https -ne 0 ] && __URL=$(echo $__URL | sed -e 's#^http:#https:#')
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__do_transfer __ANSWER "$__URL"
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__ERR=$?
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[ $__ERR -gt 0 ] && {
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verbose_echo "\n!!!!!!!!! ERROR =: Error sending update to DDNS Provider\n"
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return 1
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}
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verbose_echo " update send =: DDNS Provider answered\n$__ANSWER"
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return 0
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