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Sign up| #!/bin/bash | |
| bddc_version="0.3.9" | |
| ################################################################################ | |
| # licensed under the # | |
| # The MIT License # | |
| # # | |
| # Copyright (c) <2006 - 2009> <florian[at]klien[dot]cx> # | |
| # # | |
| # Permission is hereby granted, free of charge, to any person obtaining a copy # | |
| # of this software and associated documentation files (the "Software"), to # | |
| # deal in the Software without restriction, including without limitation the # | |
| # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or # | |
| # sell copies of the Software, and to permit persons to whom the Software is # | |
| # furnished to do so, # | |
| # subject to the following conditions: # | |
| # # | |
| # # | |
| # The above copyright notice and this permission notice shall be included in # | |
| # all copies or substantial portions of the Software. # | |
| # # | |
| # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # | |
| # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # | |
| # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # | |
| # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # | |
| # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING # | |
| # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS # | |
| # IN THE SOFTWARE. # | |
| # # | |
| ################################################################################ | |
| # # | |
| # BashDynDnsChecker (bddc) # | |
| # # | |
| # This is a dyndns check and synchronizing script # | |
| # the executables it needs are: # | |
| # grep, egrep, expr, curl, echo, sed, ifconfig, date, tail, uniq, cut, cat, # | |
| # ping, rm and wget or curl. # | |
| # which should be available in every *nix system. # | |
| # # | |
| # copyright 2006 - 2009 by florian klien # | |
| # florian[at]klien[dot]cx # | |
| # # | |
| # supports ip reception from ifconfig, an external url (by http) # | |
| # and parsing from a router. # | |
| # # | |
| # supports dyndns synchronization with afraid.org, dyndns.org and no-ip.com # | |
| # # | |
| # (!) it needs to be called in crontab as a cronjob, or any other similar # | |
| # perpetual program. # | |
| # # | |
| # (!) if you use bddc on a wrt environment, change the very first line from # | |
| # '#/bin/bash' to '#/bin/sh', without the quotes # | |
| # and clear the cutting_string variable at the end of the edit space # | |
| # you should further turn the log level very low, after you made sure bddc # | |
| # works correctly. this would otherwise fill up your memory quickly. # | |
| # # | |
| # (!) Ping-Check is a feature that controls the update of your new dyn-ip. # | |
| # Just use it if you know what it does! # | |
| # If you want a safety net for your home server enable Ping-Check. # | |
| # BE CAREFUL about your settings! # | |
| # You MUST NOT choose an update interval that is too short (interval < 5min) # | |
| # You MUST NOT use an internal DNS server with your dyn-hostname as a record. # | |
| # This record is most likely to send an internal IP for this hostname. Make # | |
| # sure you get a DNS result from an external server, with the correct IP. # | |
| # How does it work? # | |
| # Ping-Check compares the IP it gets back from the ping. The ping is of # | |
| # course done against the dyn-hostname. If the IP is not the same as on # | |
| # record an other update is forced. # | |
| # # | |
| # (I) if you want your router to be supported, # | |
| # *) send us a patch of your changes (plus the version number of bddc on # | |
| # which the patch works on.) # | |
| # OR # | |
| # *) send us your own parsing string and # | |
| # *) the value of the ip when offline (maybe other possible errors) # | |
| # as we do in the script and put it on the feature request forum on # | |
| # sourceforge.net. # | |
| # *) plus full name of the router # | |
| # *) your name and email address for contact and testing purpose before # | |
| # a release is done. # | |
| # OR # | |
| # add the following information to the feature request site on # | |
| # sourceforge.net: # | |
| # *) the url under which the external ip can be read from your router # | |
| # *) a copy of the html source code from this site (each online and offline) # | |
| # *) the complete name of your router # | |
| # *) the url to call for logout of the router # | |
| # *) your name and email address for contact and testing purpose before # | |
| # a release is done. # | |
| # # | |
| # exit codes: # | |
| # 0 -> everything went fine # | |
| # 1 -> some error occured during runtime # | |
| # 2 -> some config error was caught # | |
| # 11 -> ip address was private # | |
| # 28 -> timeout at connecting to some host # | |
| # # | |
| ################################################################################ | |
| # change to your needs # | |
| ################################################################################ | |
| # executable paths | |
| cat=cat | |
| curl=curl | |
| cut=cut | |
| date=date | |
| echo=echo | |
| egrep=egrep | |
| expr=expr | |
| grep=grep | |
| ifconfig=ifconfig | |
| ping=ping | |
| sed=sed | |
| tail=tail | |
| uniq=uniq | |
| wget=wget | |
| ###################### | |
| # change logging level | |
| # 4 -> log every step, this is fine to see what bddc does (debugging mode) | |
| # this is only prompted to the console if SILENT=0 AND LOGGING=4 | |
| # 3 -> log whenever a check is done | |
| # 2 -> log when ip changes | |
| # 1 -> log errors (recommended for WRT environments) | |
| # 0 -> log nothing | |
| LOGGING=3 | |
| LOGFILE=/var/log/bddc.log | |
| #LOGFILE=/tmp/bddc.log # (recommended for WRT environments) | |
| # cache file for ip address | |
| ip_cache=/tmp/bddc-ip-add.cache | |
| html_tmp_file=/tmp/bddc_html_tmp_file | |
| # turn silent mode on (no echo while running, [1 is silent]) | |
| SILENT=0 | |
| # submit your log also to twitter | |
| # (this can be a security issue, since your ip can be seen by anyone) | |
| # use 0 for no twittering | |
| # 1 for logging errors (although it might be that they do not make it to twitter) | |
| # 2 for twittering whenever ip changes | |
| # 3 for whenever a check is done (twitter will not accept identical messages) | |
| # 4 for twittering every little step (NOT RECOMMENDED) | |
| # use "USERNAME:PASSWD" | |
| TWITTER=0 | |
| TUSERPWD="USER:PASSWD" | |
| ################################# | |
| # mode of ip checking | |
| # 1 -> output of ifconfig | |
| # 2 -> remote website | |
| # 3 -> router info over http | |
| CHECKMODE=2 | |
| ################################# | |
| # ad 1: your internet interface (eth0,eth1,en0,en1...) | |
| inet_if=eth0 | |
| ################################# | |
| # ad 2: remote url to get ip from over http | |
| # (!) changing this needs you to change the | |
| # parsing string further down in the code. | |
| check_url=http://ipv4bot.whatismyipaddress.com/ | |
| # seconds to try for remote host: | |
| remote_timeout=10 | |
| ########### R O U T E R ######### | |
| # ad 3: router model | |
| # 1 -> DLink DI-624/DI-624+/DI-524 | |
| # 2 -> Netgear-TA612V | |
| # 3 -> Netgear WGT-624 | |
| # 4 -> Digitus DN 11001 | |
| # 5 -> Philips Wireless PSTN (currently testing...) | |
| # 6 -> Verizon Westell 327W (currently testing...) | |
| # 7 -> La Fonera (remote over wlan) | |
| ROUTER=1 | |
| router_timeout=5 | |
| router_tmp_file=/tmp/bddc_router_tmp_file | |
| #-------DLink-DI-624/DI-624+/DI-524--------- | |
| # ad 1: DLink DI-624/DI-624+/DI-524 conf | |
| dlink_user="ADMIN" | |
| dlink_passwd="PASSWD" | |
| dlink_ip=192.168.0.1 | |
| #choose one only | |
| dlink_wan_mode=PPTP/PPPoE/DHCP | |
| # this helps parsing, uncomment your router version | |
| dlink_url=st_devic.html # DI-624/DI-624+ | |
| #dlink_url=st_device.html # DI-524 | |
| dlink_mode=WAN | |
| #------/Dlink-DI-624/DI-624+/DI-524--------- | |
| #-------Netgear-TA612V-------- | |
| # ad 2: Netgear-TA612V conf | |
| netgear1_user="ADMIN" | |
| netgear1_passwd="PASSWD" | |
| netgear1_ip=192.168.0.1 | |
| # this helps parsing (do not change) | |
| netgear1_url=s_status.htm | |
| netgear1_logout=logout.htm | |
| #------/Netgear-TA612V-------- | |
| #-------Netgear WGT-624-------- | |
| # ad 3: WGT 624 conf | |
| wgt624_user="ADMIN" | |
| wgt624_passwd="PASSWD" | |
| wgt624_ip=192.168.0.1 | |
| # this helps parsing (do not change) | |
| wgt624_url=RST_status.htm | |
| wgt624_logout=LGO_logout.htm | |
| #-------/Netgear WGT-624------- | |
| #-------Digitus DN 11001------- | |
| # ad 4: Digitus DN 11001 conf | |
| digitusDN_user="ADMIN" | |
| digitusDN_passwd="PASSWD" | |
| digitusDN_ip=192.168.0.1 | |
| # this helps parsing (do not change) | |
| digitusDN_url=status.htm | |
| #-------/Digitus DN 11001------ | |
| #-------Philips Wireless PSTN------- Not confirmed working... | |
| # ad 5: Philips Wireless PSTN conf | |
| philipsPSTN_user="ADMIN" | |
| philipsPSTN_passwd="PASSWD" | |
| philipsPSTN_ip=192.168.0.1 | |
| # this helps parsing (do not change) | |
| philipsPSTN_url=status_main.stm | |
| philipsPSTN_loginpath=cgi-bin/login.exe | |
| philipsPSTN_logoutpath=cgi-bin/logout.exe | |
| #-------/Philips Wireless PSTN------ | |
| #-------Westell 327W------- Not confirmed working... | |
| # ad 6: Westell 327W conf | |
| west327_user="ADMIN" | |
| west327_passwd="PASSWD" | |
| west327_ip=192.168.0.1 | |
| west327_url=advstat.htm | |
| #------/Westell 327W------- | |
| #-------La Fonera (FON2100A/B/C)------- | |
| # ad 7: La Fonera conf | |
| lafonera_user="ADMIN" # is not needed, status page is accessable without username | |
| lafonera_passwd="PASSWD" # is not needed, status page is accessable without pwd | |
| lafonera_ip=192.168.10.1 | |
| lafonera_url=cgi-bin/status.sh | |
| #------/La Fonera (FON2100A/B/C)------- | |
| ######### / R O U T E R ######### | |
| ########## DNS Server Section ########### | |
| # mode of syndication | |
| # 1 -> use afraid.org url | |
| # 2 -> use dyndns.org | |
| # 3 -> use no-ip.com | |
| # T -> testing option (doing nothing) | |
| IPSYNMODE=T | |
| #------------afraid.org----------------- | |
| # ad 1: your update url using afraid.org | |
| # enter your syndication url from afraid.org | |
| afraid_url=http://freedns.afraid.org/dynamic/update.php........................... | |
| #-----------/afraid.org----------------- | |
| #------------dyndns.org---------------- | |
| # ad 2: data you got at dyndns.org | |
| dyndnsorg_username="USER" | |
| dyndnsorg_passwd="PASSWD" | |
| dyndnsorg_hostnameS=1st.domain.com,2nd.domain.com | |
| #--do not edit----- | |
| dyndnsorg_wildcard=NOCHG | |
| dyndnsorg_mail=NOCHG | |
| dyndnsorg_backmx=NOCHG | |
| dyndnsorg_offline=NO | |
| #for testing | |
| dyndnsorg_ip= | |
| #-----------/dyndns.org---------------- | |
| #------------no-ip.com----------------- | |
| # ad 3: your data you got at no-ip.com | |
| # username is an email address | |
| noipcom_username="USERNAME@yourdomain.com" | |
| noipcom_passwd="PASSWD" | |
| noipcom_hostnameS=1st.domain.com,2nd.domain.com | |
| #for testing | |
| noipcom_ip= | |
| #-----------/no-ip.com----------------- | |
| ########## / DNS Server Section ########### | |
| # the name of the client that is sent with updates and requests (do not change) | |
| bddc_name="bashdyndnschecker (bddc v${bddc_version})/bddc.klienux.org" | |
| # Ping check !!! - ONLY ENABLE IF YOU KNOW WHAT THIS DOES - !!! | |
| # see header for details, or http://bddc.klienux.org/faq.php | |
| # checks if the dns service edited your ip. | |
| # pings your hostname (my_url) to check for the ip. | |
| # updates again if ip differs from current ip. | |
| # enabled if 1. | |
| ping_check=0 | |
| # the url that needs the dyndns | |
| # is used for Ping-Check, to check for successful dns update. | |
| # only used when ping_check is enabled. (if you are using multiple domains, | |
| # you MUST ONLY list one.) | |
| my_url=your.domain.com | |
| # list of preferred url fetchers | |
| # it is safe to leave this at default setting. this simply specifies order in | |
| # which they are checked. must not be empty. | |
| preferred_fetchers="$wget $curl" | |
| # if you are using bddc on a wrt environment clear the cutting_string variable | |
| # do NOT edit this otherwise | |
| cutting_string="$echo ${str:${in1}:${in2}};" # for full featured Linux and Mac Os X | |
| #cutting_string= # (essential for WRT environments!!!) | |
| ################################################################################ | |
| # End of editspace, just go further if you know what you are doing # | |
| ################################################################################ | |
| ####################################### | |
| #### Functions | |
| # choose_fetcher: finds available url fetchers and sets variable "fetcher" to point | |
| # to correct wrapper function; | |
| choose_fetcher() { | |
| # Go through preferred fetchers list and try to find which program is available | |
| [ -z "$preferred_fetchers" ] && { msg_error "Fetchers list empty, check settings"; exit 2; } | |
| local urlfetcher | |
| for urlfetcher in $preferred_fetchers; do | |
| # First check if it even exists | |
| $urlfetcher --help >/dev/null 2>&1 | |
| [ $? -eq 127 ] && continue | |
| # Get the id string | |
| urlfetcher_id=$($urlfetcher --version 2>&1 |head -n1) | |
| if expr "$urlfetcher_id" : ".*unrecognized option.*" >/dev/null; then urlfetcher_id=$($urlfetcher --help 2>&1 |head -n1); fi | |
| # See what we have | |
| case "$urlfetcher_id" in | |
| BusyBox*) fetcher="_fetcher_bbwget" ;; | |
| curl*) fetcher="$curl" ;; | |
| "GNU Wget"*) fetcher="_fetcher_wget" ;; | |
| esac | |
| # Verify that we have it/it's implemented, if not reset $fetcher so we can try another one | |
| $fetcher --help >/dev/null 2>&1 | |
| [ $? -eq 127 ] && fetcher= | |
| done #for urlfetcher in $preferred_fetchers | |
| [ -z "$fetcher" ] && { msg_error "Could not find any suitable fetchers, function can be unimplemented"; exit 1; } | |
| return 0 | |
| } | |
| login_data_valid () { | |
| if [ "$1" == "ADMIN" ] || [ "$2" == "PASSWD" ]; then | |
| msg_error "check the login settings for your router" | |
| return 0; | |
| fi | |
| return 1; | |
| } | |
| # msg_error: print and/or log message of level error (1) according to settings; pass msg as arg; | |
| msg_error() { | |
| [ $SILENT -eq 0 ] && _msg_console "$@" | |
| [ $LOGGING -ge 1 ] && _msg_log "ERROR: $@" | |
| [ $TWITTER -ge 1 ] && _msg_tw "ERROR: $@" | |
| } | |
| msg_info() { | |
| [ $SILENT -eq 0 ] && _msg_console "$@" | |
| [ $LOGGING -ge 2 ] && _msg_log "INFO: $@" | |
| [ $TWITTER -ge 2 ] && _msg_tw "INFO: $@" | |
| } | |
| msg_verbose() { | |
| [ $SILENT -eq 0 ] && _msg_console "$@" | |
| [ $LOGGING -ge 3 ] && _msg_log "VERBOSE: $@" | |
| [ $TWITTER -ge 3 ] && _msg_tw "VERBOSE: $@" | |
| } | |
| msg_tattle() { | |
| if [ $LOGGING -ge 4 ]; then | |
| _msg_log "TATTLE: $@" | |
| [ $SILENT -eq 0 ] && _msg_console "$@" | |
| fi | |
| [ $TWITTER -ge 4 ] && _msg_tw "$@" | |
| } | |
| # _fetcher_bbwget: download specified target with busybox's wget; expects options | |
| # for curl and translates them to wget if possible; | |
| _fetcher_bbwget() { | |
| # Catch parameters and use whichever you can | |
| local optstr= | |
| local proto= | |
| local host= | |
| local address= | |
| local have_out=0 | |
| for a in $(seq 1 $#); do | |
| case $1 in | |
| -d) | |
| # data as POST; unsupported, better scream cause there's gonna be problems | |
| msg_error "Fetcher cannot proceed, command not supported, aborting ..." | |
| exit 1 | |
| ;; | |
| --help) | |
| # print help | |
| optstr="${optstr:+$optstr }--help" | |
| shift; continue | |
| ;; | |
| -o) | |
| # outfile | |
| have_out=1 | |
| optstr="${optstr:+$optstr }-O \"$2\"" | |
| shift 2; continue | |
| ;; | |
| -s) | |
| # silent | |
| optstr="${optstr:+$optstr }-q" | |
| shift; continue | |
| ;; | |
| -u) | |
| # user/pass; lets try to pass it in the URL | |
| local authstr=$2 | |
| shift 2; continue | |
| ;; | |
| http*|ftp*) | |
| # remote address | |
| proto="${1%%:*}" | |
| host="${1#*://}" | |
| shift; continue | |
| ;; | |
| '') | |
| # ignore | |
| continue | |
| ;; | |
| *) | |
| # catchall for all possibly unsupported options (should not effect functionality) | |
| msg_tattle "Fetcher got an unrecognized argument, ignoring ($1)" | |
| shift; continue | |
| ;; | |
| esac | |
| done | |
| # Curl by default dumps to stdout, so if -o wasn't specified assume that. | |
| [ "$have_out" -eq "0" ] && optstr="${optstr:+$optstr }-O -" | |
| # Assemble the address | |
| address="${proto}://${authstr:+$authstr@}${host}" | |
| # Ready to roll | |
| # eval echo wget "$optstr" "\"$address\"" >&2 | |
| eval wget "$optstr" "\"$address\"" | |
| return $? | |
| } | |
| # this is for normal wget | |
| _fetcher_wget() { | |
| # Catch parameters and use whichever you can | |
| local optstr= | |
| local proto= | |
| local host= | |
| local address= | |
| local have_out=0 | |
| for a in $(seq 1 $#); do | |
| case $1 in | |
| --connect-timeout) | |
| # timeout | |
| optstr="${optstr:+$optstr }--timeout=$2" | |
| shift 2; continue | |
| ;; | |
| -d) | |
| # data as POST; | |
| optstr="${optstr:+$optstr }--post-data=\"$2\"" | |
| shift 2; continue | |
| ;; | |
| --help) | |
| # print help | |
| optstr="${optstr:+$optstr }--help" | |
| shift; continue | |
| ;; | |
| -o) | |
| # outfile | |
| have_out=1 | |
| optstr="${optstr:+$optstr }-O \"$2\"" | |
| shift 2; continue | |
| ;; | |
| -s) | |
| # silent | |
| optstr="${optstr:+$optstr }-q" | |
| shift; continue | |
| ;; | |
| -u) | |
| # user/pass; lets try to pass it in the URL | |
| local authstr=$2 | |
| shift 2; continue | |
| ;; | |
| http*|ftp*) | |
| # remote address | |
| proto="${1%%:*}" | |
| host="${1#*://}" | |
| shift; continue | |
| ;; | |
| '') | |
| # silent ignore | |
| continue | |
| ;; | |
| -A) | |
| # setting bddc as reference URL | |
| optstr="${optstr:+$optstr }--referer=\"$2\"" | |
| shift 2; continue | |
| ;; | |
| *) | |
| # catchall for all possibly unsupported options | |
| msg_verbose "Fetcher got an unrecognized argument, ignoring ($1)" | |
| shift; continue | |
| ;; | |
| esac | |
| done | |
| # Curl by default dumps to stdout, so if -o wasn't specified assume that. | |
| [ "$have_out" -eq "0" ] && optstr="${optstr:+$optstr }-O -" | |
| # Assemble the address | |
| address="${proto}://${authstr:+$authstr@}${host}" | |
| echo $host | |
| echo $address | |
| echo $optstr | |
| echo $authstr | |
| # Ready to roll | |
| # eval echo wget "$optstr" "\"$address\"" >&2 | |
| eval wget "$optstr" "\"$address\"" | |
| return $? | |
| } | |
| _cut_string() { | |
| str=$1 | |
| in1=$2 | |
| in2=$3 | |
| if [ "$( $expr substr "okokokok" 1 2 2> /dev/null )" == "ok" ]; then | |
| $echo $( $expr substr "${str}" ${in1} ${in2} ) | |
| else | |
| let "in1=$in1 - 1" | |
| # moved this line into config space | |
| # (wrt users will get an error if this line is in the code) | |
| # $echo ${str:${in1}:${in2}}; | |
| ${cutting_string} | |
| fi | |
| } | |
| # _msg_console: print message to console; pass msg as arg; | |
| _msg_console() { | |
| $echo -e "$@" | |
| } | |
| _msg_log() { | |
| $echo -e "[`$date +%d/%b/%Y:%T`] | $@" >> $LOGFILE | |
| } | |
| _msg_tw() { | |
| # it may occur that twitter does not update every time (especially when the message | |
| # does not change). in this case try embedding the timestamp (as below). | |
| #text="[`$date +%d/%b/%Y:%T`] $@" | |
| text="$@" | |
| chars=$(echo -ne $text| wc -c) | |
| if [ "$chars" -gt "140" ]; then | |
| #msg_error "twitter msg too long"; return; fi | |
| msg_tattle "cropping next msg for twitters 140 chars" | |
| text=${text:0:140} | |
| fi | |
| user=$TUSERPWD | |
| curl -s --basic --user $user --data-ascii "status=$text" "http://twitter.com/statuses/update.json" 1> /dev/null && _msg_log "twitter update successful" | |
| } | |
| #### end of Functions | |
| ####################################### | |
| if [ $LOGGING -ge 1 ]; then | |
| if [ ! -e ${LOGFILE} ] || [ ! -s ${LOGFILE} ]; then | |
| $echo "${bddc_name} Logfile:" >> ${LOGFILE} 2> /dev/null | |
| fi | |
| if [ ! -r ${LOGFILE} ] || [ ! -w ${LOGFILE} ] || [ -d ${LOGFILE} ]; then | |
| $echo "ERROR: Script has no write and/or no read permission for logfile ${LOGFILE}!" | |
| exit 2 | |
| fi | |
| fi | |
| if [ ! -e ${ip_cache} ] || [ ! -s ${ip_cache} ]; then | |
| $echo "0.0.0.0" > ${ip_cache} 2> /dev/null | |
| fi | |
| if [ ! -r ${ip_cache} ] || [ ! -w ${ip_cache} ] || [ -d ${ip_cache} ]; then | |
| msg_error "Script has no write and/or no read permission for ${ip_cache}!" | |
| [ $CHECKMODE -eq 3 ] && msg_verbose "NOTICE: the script needs permission to write to this file too: ${router_tmp_file}"; | |
| exit 2 | |
| fi | |
| if [ $CHECKMODE -eq 2 ]; then | |
| echo "" > ${html_tmp_file} | |
| if [ ! -r ${html_tmp_file} ] || [ ! -w ${html_tmp_file} ] || [ -d ${html_tmp_file} ]; then | |
| msg_error "Script has no write and/or no read permission for ${html_tmp_file}!" | |
| exit 2 | |
| fi | |
| fi | |
| if [ $CHECKMODE -eq 3 ]; then | |
| echo "" > ${router_tmp_file} | |
| if [ ! -r ${router_tmp_file} ] || [ ! -w ${router_tmp_file} ] || [ -d ${router_tmp_file} ]; then | |
| msg_error "Script has no write and/or no read permission for ${router_tmp_file}!" | |
| exit 2 | |
| fi | |
| fi | |
| msg_tattle "Looking for URL fetcher" | |
| fetcher= | |
| choose_fetcher | |
| msg_tattle "Using fetcher: \"$fetcher\"" | |
| case "$CHECKMODE" in | |
| # ifconfig mode | |
| 1) | |
| feedback=`$ifconfig | $grep $inet_if` | |
| if [ -z "$feedback" ]; then | |
| msg_error "internet interface ($inet_if) is down!" | |
| exit 1 | |
| fi | |
| current_ip=`$ifconfig ${inet_if} |$grep "inet " | $sed 's/[^0-9]*//;s/ .*//'`; | |
| ;; | |
| # remote website mode | |
| 2) | |
| # only edit if you know what you do! | |
| # edit line of current_ip to a form that only the ip remains when you get the html file | |
| # in this format: '123.123.132.132' | |
| string=`$fetcher --connect-timeout "${remote_timeout}" -s -A "${bddc_name}" $check_url -o ${html_tmp_file}` | |
| # this fixes return values without ending newline, like wahtismyip.com automation page | |
| $echo -ne "\n\n" >> ${html_tmp_file} | |
| case $? in | |
| 28) msg_error "timeout (${remote_timeout} second(s) tried on host: ${check_url})"; exit 28 ;; | |
| 1) msg_error "Could not download from host: \"${check_url}\", is it up?"; exit 1 ;; | |
| 0) msg_tattle "Got IP address from host: \"${check_url}\"" ;; | |
| esac | |
| # Note: this was tested on few different sites and it works. Your mileage may vary. | |
| #+ This looks for anything that is formatted like an IP number and prints it. | |
| # Sites tested: | |
| #o http://www.whatismyip.com/automation/n09230945.asp | |
| #o http://ipdetect.dnspark.com:8888/ | |
| #o http://www.ipchicken.com/ | |
| #o http://checkip.dyndns.org/ | |
| #o http://www.ip-number.com/index.asp | |
| #o http://www.lawrencegoetz.com/programs/ipinfo/ | |
| #o http://www.cloudnet.com/support/getting_Connected/system.php | |
| #o http://www.mediacollege.com/internet/utilities/show-ip.shtml | |
| # alt : |$sed -ne "s/[^0-9.]*\(\([0-9]\{1,3\}\.\)\{3\}\([0-9]\{1,3\}\)\).*/\1/p" # doesn't work when there's a dot in the same line BEFORE the addr | |
| # alt2: |$sed -ne "s/.*[^0-9]\(\([0-9]\{1,3\}\.\)\{3\}\([0-9]\{1,3\}\)\).*/\1/p" # works well, one exception is when addr is on beginning of the line | |
| # alt3: |$sed -ne "s/\(^\|.*[^0-9]\)\(\([0-9]\{1,3\}\.\)\{3\}\([0-9]\{1,3\}\)\).*/\2/p" |uniq # works with all tested sites | |
| current_ip=`$cat $html_tmp_file |$sed -ne "s/\(^\|.*[^0-9]\)\(\([0-9]\{1,3\}\.\)\{3\}\([0-9]\{1,3\}\)\).*/\2/p" |$uniq` | |
| # current_ip=`$cat $html_tmp_file |$sed -ne "s/.*[^0-9]\(\([0-9]\{1,3\}\.\)\{3\}\([0-9]\{1,3\}\)\).*/\1/p" | $uniq ` # works well on Mac Os X | |
| #current_ip=`$cat $html_tmp_file | $egrep -e ^[\ \t]*\([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}| $sed 's/ //g'` | |
| ## uncomment the next two lines for testing, to see if it works: | |
| # $echo $current_ip | |
| # exit 0 | |
| rm $html_tmp_file | |
| ;; | |
| ###################### | |
| # router per http mode | |
| 3) | |
| case $ROUTER in | |
| # DLink DI-624/524 | |
| 1) | |
| login_data_valid ${dlink_user} ${dlink_passwd} | |
| loginIsValid=$? | |
| if [ $loginIsValid == 0 ]; then | |
| exit 2 | |
| fi | |
| string=`$fetcher --connect-timeout "${router_timeout}" -s --anyauth -u ${dlink_user}:"${dlink_passwd}" -o "${router_tmp_file}" http://${dlink_ip}/${dlink_url}` | |
| case $? in | |
| 28) msg_error "timeout (${router_timeout} second(s) tried on host: http://${dlink_ip}/${dlink_url})"; exit 28 ;; | |
| 1) msg_error "Could not download from host: \"http://${dlink_ip}/${dlink_url}\", is it up?"; exit 1 ;; | |
| 0) msg_tattle "Got IP address from host: \"http://${dlink_ip}/${dlink_url}\"" ;; | |
| esac | |
| line=`$grep -A 20 ${dlink_mode} ${router_tmp_file} | $grep onnected` | |
| line2=${line#" ${dlink_wan_mode} "} | |
| # In ASH/BusyBox we don't have that construct, unfortunatelly | |
| #disconnected=${line2:0:9} # cutting Connected out of file | |
| disconnected=$(_cut_string "${line2}" 1 9) # cutting Connected out of file | |
| if [ "$disconnected" != "Connected" ]; then | |
| # Try the DI-524 version | |
| disconnected=$(_cut_string "${line2}" 14 9) | |
| if [ "$disconnected" != "Connected" ]; then | |
| msg_error "DLink DI-624/524 internet interface is down!" | |
| exit 1 | |
| fi | |
| fi | |
| current_ip=`$grep -A 30 ${dlink_mode} ${router_tmp_file}|$grep -A 9 ${dlink_wan_mode} |$egrep -e \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\} | $sed 's/<[^>]*>//g;/</N;'|$sed 's/^[^0-9]*//;s/[^0-9]*$//' |$egrep -e \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}` | |
| ;; | |
| # Netgear-TA612V | |
| 2) | |
| login_data_valid ${netgear1_user} ${netgear1_passwd} | |
| loginIsValid=$? | |
| if [ $loginIsValid == 0 ]; then | |
| exit 2 | |
| fi | |
| string=`$fetcher --connect-timeout "${router_timeout}" -s --anyauth -u ${netgear1_user}:"${netgear1_passwd}" -o "${router_tmp_file}" http://${netgear1_ip}/${netgear1_url}` | |
| case $? in | |
| 28) msg_error "timeout (${router_timeout} second(s) tried on host: http://${netgear1_ip}/${netgear1_url})"; exit 28 ;; | |
| 1) msg_error "Could not download from host: \"http://${netgear1_ip}/${netgear1_url}\", is it up?"; exit 1 ;; | |
| 0) msg_tattle "Got IP address from host: \"http://${netgear1_ip}/${netgear1_url}\"" ;; | |
| esac | |
| current_ip=`$grep -A 20 "Internet Port" ${router_tmp_file} |$grep -A 1 "IP Address"|egrep -e \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\} | $sed 's/<[^>]*>//g;/</N;'|$sed 's/^[^0-9]*//;s/[^0-9]*$//'` | |
| if [ -z "$current_ip" ]; then | |
| msg_error "Netgear-TA612V internet interface is down!" | |
| exit 1 | |
| fi | |
| $fetcher --connect-timeout "${router_timeout}" -s --anyauth -u ${netgear1_user}:${netgear1_passwd} http://${netgear1_ip}/${netgear1_logout} | |
| case $? in | |
| 28) msg_error "timeout (${router_timeout} second(s) tried on host: http://${netgear1_ip}/${netgear1_logout}"; exit 28 ;; | |
| 1) msg_error "Could not log out from host: \"http://${netgear1_ip}/${netgear1_logout}\", is it up?" ;; | |
| 0) msg_tattle "Log out from host: \"http://${netgear1_ip}/${netgear1_logout}\"" ;; | |
| esac | |
| ;; | |
| # Netgear WGT 624 | |
| 3) | |
| login_data_valid ${wgt624_user} ${wgt624_passwd} | |
| loginIsValid=$? | |
| if [ $loginIsValid == 0 ]; then | |
| exit 2 | |
| fi | |
| string=`$fetcher --connect-timeout "${router_timeout}" -s --anyauth -u ${wgt624_user}:"${wgt624_passwd}" -o "${router_tmp_file}" http://${wgt624_ip}/${wgt624_url}` | |
| case $? in | |
| 28) msg_error "timeout (${router_timeout} second(s) tried on host: http://${wgt624_ip}/${wgt624_url})"; exit 28 ;; | |
| 1) msg_error "Could not download from host: \"http://${wgt624_ip}/${wgt624_url}\", is it up?"; exit 1 ;; | |
| 0) msg_tattle "Got IP address from host: \"http://${wgt624_ip}/${wgt624_url}\"" ;; | |
| esac | |
| current_ip=`$grep -A 20 "Internet Port" ${router_tmp_file}| $grep -A 1 "IP Address" | $egrep -e \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\} | $sed 's/<[^>]*>//g;/</N;'| $sed 's/^[^0-9]*//;s/[^0-9]*$//'` | |
| if [ "$current_ip" == "0.0.0.0" ]; then | |
| msg_error "WGT 624 internet interface is down!" | |
| exit 1 | |
| fi | |
| $fetcher --connect-timeout "${router_timeout}" -s --anyauth -u ${wgt624_user}:${wgt624_passwd} http://${wgt624_ip}/${wgt624_logout} | |
| case $? in | |
| 28) msg_error "timeout (${router_timeout} second(s) tried on host: http://${wgt624_ip}/${wgt624_logout})"; exit 28 ;; | |
| 1) msg_error "Could not log out from host: \"http://${wgt624_ip}/${wgt624_logout}\", is it up?" ;; | |
| 0) msg_tattle "Log out from host: \"http://${wgt624_ip}/${wgt624_logout}\"" ;; | |
| esac | |
| ;; | |
| # Digitus DN 11001 | |
| 4) | |
| login_data_valid ${digitusDN_user} ${digitusDN_passwd} | |
| loginIsValid=$? | |
| if [ $loginIsValid == 0 ]; then | |
| exit 2 | |
| fi | |
| string=`$fetcher --connect-timeout "${router_timeout}" -s --anyauth -u ${digitusDN_user}:"${digitusDN_passwd}" -o "${router_tmp_file}" http://${digitusDN_ip}/${digitusDN_url}` | |
| case $? in | |
| 28) msg_error "timeout (${router_timeout} second(s) tried on host: http://${digitusDN_ip}/${digitusDN_url})"; exit 28 ;; | |
| 1) msg_error "Could not download from host: \"http://${digitusDN_ip}/${digitusDN_url}\", is it up?"; exit 1 ;; | |
| 0) msg_tattle "Got IP address from host: \"http://${digitusDN_ip}/${digitusDN_url}\"" ;; | |
| esac | |
| current_ip=`$grep IP ${router_tmp_file}|$grep Adr |$egrep -e \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\} | $sed 's/<[^>]*>//g;/</N;'| $sed 's/^[^0-9]*//;s/[^0-9]*$//'` | |
| if [ "$current_ip" == "0.0.0.0" ]; then | |
| msg_error "Digitus DN 11001 internet interface is down!" | |
| exit 1 | |
| fi | |
| ;; | |
| # Philips Wireless PSTN | |
| 5) | |
| login_data_valid ${philipsPSTN_user} ${philipsPSTN_passwd} | |
| loginIsValid=$? | |
| if [ $loginIsValid == 0 ]; then | |
| exit 2 | |
| fi | |
| # login to router | |
| #$wget --timeout=${router_timeout} --post-data 'pws=${philipsPSTN_passwd}' http://${philipsPSTN_ip}/${philipsPSTN_loginpath} | |
| #$curl --max-time ${router_timeout} -d name=${philipsPSTN_user} -d pws=${philipsPSTN_passwd} http://${philipsPSTN_ip}/${philipsPSTN_loginpath} | |
| $fetcher --max-time ${router_timeout} -d pws=${philipsPSTN_passwd} http://${philipsPSTN_ip}/${philipsPSTN_loginpath} | |
| string=`$fetcher --connect-timeout "${router_timeout}" -s -o "${router_tmp_file}" http://${philipsPSTN_ip}/${philipsPSTN_url}` | |
| case $? in | |
| 28) msg_error "timeout (${router_timeout} second(s) tried on host: http://${philipsPSTN_ip}/${philipsPSTN_url})"; exit 28 ;; | |
| 1) msg_error "Could not download from host: \"http://${philipsPSTN_ip}/${philipsPSTN_url}\", is it up?"; exit 1 ;; | |
| 0) msg_tattle "Got IP address from host: \"http://${philipsPSTN_ip}/${philipsPSTN_url}\"" ;; | |
| esac | |
| current_ip=`$grep "var wan_ip" "${router_tmp_file}" | cut -d \" -f 2` | |
| if [ "$current_ip" == "0.0.0.0" ]; then | |
| msg_error "Philips Wireless PSTN internet interface is down!" | |
| exit 1 | |
| fi | |
| # logout from router | |
| $fetcher http://${philipsPSTN_ip}/${philipsPSTN_logoutpath} 2> /dev/null | |
| ;; | |
| # Westell 327W | |
| 6) | |
| login_data_valid ${west327_user} ${west327_passwd} | |
| loginIsValid=$? | |
| if [ $loginIsValid == 0 ]; then | |
| exit 2 | |
| fi | |
| string=`$fetcher --connect-timeout "${router_timeout}" -s --anyauth -u ${west327_user}:"${west327_passwd}" -o "${router_tmp_file}" http://${west327_ip}/${west327_url}` | |
| case $? in | |
| 28) msg_error "timeout (${router_timeout} second(s) tried on host: http://${west327_ip}/${west327_url})"; exit 28 ;; | |
| 1) msg_error "Could not download from host: \"http://${west327_ip}/${west327_url}\", is it up?"; exit 1 ;; | |
| 0) msg_tattle "Got IP address from host: \"http://${west327_ip}/${west327_url}\"" ;; | |
| esac | |
| #current_ip=`$grep -A 1 Secondary ${router_tmp_file} |$egrep -e \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\} | gawk -F";" ' {print $2}' | $sed 's/<br> //'` | |
| current_ip=`$grep -A 1 Secondary ${router_tmp_file} | $egrep -e \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\} | $cut -d ';' -f 2 | $sed 's/<br> //'` | |
| if [ "$current_ip" == "0.0.0.0" ]; then | |
| msg_error "Westell 327W internet interface is down!" | |
| exit 1 | |
| fi | |
| ;; | |
| # La Fonera | |
| 7) | |
| string=`$fetcher --connect-timeout "${router_timeout}" -s -o "${router_tmp_file}" http://${lafonera_ip}/${lafonera_url}` | |
| case $? in | |
| 28) msg_error "timeout (${router_timeout} second(s) tried on host: http://${lafonera_ip}/${lafonera_url})"; exit 28 ;; | |
| 1) msg_error "Could not download from host: \"http://${lafonera_ip}/${lafonera_url}\", is it up?"; exit 1 ;; | |
| 0) msg_tattle "Got IP address from host: \"http://${lafonera_ip}/${lafonera_url}\"" ;; | |
| esac | |
| current_ip=`$cat ${router_tmp_file} | $grep -A 2 -i Internet | $grep IP| $cut -d : -f 2 | $sed 's/<[^>]*>//g' | $sed 's/ //g'` | |
| if [ "$current_ip" == "N/A" ]; then | |
| msg_error "La Fonera internet interface is down!" | |
| exit 1 | |
| fi | |
| ;; | |
| esac | |
| rm ${router_tmp_file} | |
| ;; | |
| esac | |
| #---------IP-checking-part----------------------- | |
| # check if ip is in a private range == not visible to others | |
| if [ "$current_ip" != "$old_ip" ]; then | |
| first_part=`echo $current_ip | cut -d . -f 1` | |
| second_part=`echo $current_ip | cut -d . -f 2` | |
| case $current_ip in | |
| 127.0.0.1) | |
| msg_error "IP address $current_ip is localhost" | |
| exit 11 | |
| ;; | |
| 255.255.255.255) | |
| msg_error "IP address $current_ip is broadcast" | |
| exit 11 | |
| ;; | |
| esac | |
| case $first_part in | |
| 10) | |
| msg_error "IP address $current_ip is part of private network" | |
| exit 11 | |
| ;; | |
| 169) | |
| if [ "$second_part" == "254" ]; then | |
| msg_error "IP address $current_ip is part of private network" | |
| exit 11 | |
| fi | |
| ;; | |
| 172) | |
| if [ $second_part -ge 16 ] && [ $second_part -le 31 ] | |
| then | |
| msg_error "IP address $current_ip is part of private network" | |
| exit 11 | |
| fi | |
| ;; | |
| 192) | |
| if [ "$second_part" == "168" ]; then | |
| msg_error "IP address $current_ip is part of private network" | |
| exit 11 | |
| fi | |
| ;; | |
| esac | |
| msg_tattle "IP $current_ip seems alright, passing to syndication part" | |
| fi | |
| #---------IP-syndication-part-------------------- | |
| old_ip=`$cat $ip_cache` | |
| if [ "$current_ip" != "$old_ip" ] | |
| then | |
| case $IPSYNMODE in | |
| # afraid.org | |
| 1) | |
| # afraid.org gets IP over the http request of your url | |
| afraid_feedback=`$fetcher --connect-timeout "${remote_timeout}" -A "${bddc_name}" -s "$afraid_url"` | |
| case $? in | |
| 28) msg_error "timeout (${remote_timeout} second(s) tried on host: ${afraid_url})"; | |
| exit 28 ;; | |
| 1) msg_error "Could not download from host: \"${afraid_url}\", is it up?"; exit 1 ;; | |
| 0) # everything went fine | |
| msg_tattle "Updated IP address on host: \"${afraid_url}\"" | |
| ;; | |
| esac | |
| # those are the possible error messages from afraid.org: | |
| #"ERROR: \"$address\" is an invalid IP address."; | |
| #"ERROR: Please clear your RBL listing of $address with: $return"; | |
| #"ERROR: Missing S/key and DataID, check your update URL."; | |
| #"ERROR: Hostname has been ICED."; | |
| #"ERROR: Address $address has not changed."; | |
| #"ERROR: Account frozen."; | |
| #"ERROR: $resp"; | |
| #"ERROR: " . $res['matchitem'] . " is listed on SBL : " . $res['rblresults'] . ". Please clear your listing with them first."; | |
| #"ERROR: " . $res['matchitem'] . " is on the local banned IP list."; | |
| #"ERROR: Only premium members are permitted to point to IPs into this range."; | |
| if [ "ERROR" = "$(_cut_string "${afraid_feedback}" 1 5)" ]; then | |
| msg_error "afraid.org: ${afraid_feedback}" | |
| # do not exit on any error, timeout is there too | |
| fi | |
| ;; | |
| # dyndns.org | |
| 2) | |
| dyndnsorg_ip=$current_ip; | |
| myurl=`$echo "http://${dyndnsorg_username}:${dyndnsorg_passwd}@members.dyndns.org/nic/update?system=dyndns&hostname=${dyndnsorg_hostnameS}&myip=${dyndnsorg_ip}&wildcard=${dyndnsorg_wildcard}&mx=${dyndnsorg_mail}&backmx=${dyndnsorg_backmx}&offline=${dyndnsorg_offline}"` | |
| dyndnsorg_feedback=`$fetcher --connect-timeout "${remote_timeout}" -s -A "${bddc_name}" ${myurl}` | |
| case $? in | |
| 28) msg_error "timeout (${remote_timeout} second(s) tried on host: ${myurl})"; exit 28 ;; | |
| 1) msg_error "Could not connect to host: \"${myurl}\", is it up?"; exit 1 ;; | |
| 0) # everything went fine | |
| msg_tattle "Connected to host: \"${myurl}\"" | |
| ;; | |
| esac | |
| if [ "$(_cut_string "${dyndnsorg_feedback}" 1 8)" == "badagent" ]; then | |
| msg_error "dyndns.org: ERROR The user agent that was sent has been blocked for not following the specifications (${dyndnsorg_feedback})" | |
| exit 1 | |
| fi | |
| if [ "$(_cut_string "${dyndnsorg_feedback}" 1 5)" == "abuse" ]; then | |
| msg_error "dyndns.org: ERROR account blocked because of abuse (${dyndnsorg_feedback})" | |
| exit 1 | |
| fi | |
| if [ "$(_cut_string "${dyndnsorg_feedback}" 1 7)" == "notfqdn" ]; then | |
| msg_error "dyndns.org: ERROR domain name is not fully qualified (${dyndnsorg_feedback})" | |
| exit 1 | |
| fi | |
| if [ "$(_cut_string "${dyndnsorg_feedback}" 1 7)" == "badauth" ]; then | |
| msg_error "dyndns.org: ERROR bad authentication (${dyndnsorg_feedback})" | |
| exit 2 | |
| fi | |
| if [ "$(_cut_string "${dyndnsorg_feedback}" 1 4)" == "good" ]; then | |
| msg_info "dyndns.org: update successful (${dyndnsorg_feedback})" | |
| fi | |
| if [ "$(_cut_string "${dyndnsorg_feedback}" 1 5)" == "nochg" ]; then | |
| msg_verbose "dyndns.org: still the same ip (${dyndnsorg_feedback})" | |
| fi | |
| msg_tattle "dyndns.org: $dyndnsorg_feedback" | |
| ;; | |
| 3) | |
| noipcom_ip=$current_ip; | |
| myurl=`$echo "http://dynupdate.no-ip.com/nic/update?hostname=${noipcom_hostnameS}&myip=${noipcom_ip}"` | |
| noipcom_feedback=`$fetcher --connect-timeout "${remote_timeout}" -s -A "${bddc_name}" --basic -u ${noipcom_username}:${noipcom_passwd} ${myurl}` | |
| case $? in | |
| 28) msg_error "timeout (${remote_timeout} second(s) tried on host: ${myurl})"; exit 28 ;; | |
| 1) msg_error "Could not connect to host: \"${myurl}\", is it up?"; exit 1 ;; | |
| 0) msg_tattle "Connected to host: \"${myurl}\"" ;; | |
| esac | |
| if [ "$(_cut_string "${noipcom_feedback}" 1 8)" == "badagent" ]; then | |
| msg_error "no-ip.com: ERROR The user agent that was sent has been blocked for not following the specifications (${noipcom_feedback})" | |
| msg_error "no-ip.com: ERROR Client disabled. Client should exit and not perform any more updates without user intervention. (${noipcom_feedback})" | |
| exit 1 | |
| fi | |
| if [ "$(_cut_string "${noipcom_feedback}" 1 5)" == "abuse" ]; then | |
| msg_error "no-ip.com: ERROR Account disabled due to violation of No-IP terms of service. Our terms of service can be viewed at http://www.no-ip.com/legal/tos (${noipcom_feedback})" | |
| exit 1 | |
| fi | |
| if [ "$(_cut_string "${noipcom_feedback}" 1 6)" == "nohost" ]; then | |
| msg_error "no-ip.com: ERROR Hostname supplied does not exist (${noipcom_feedback})" | |
| exit 1 | |
| fi | |
| if [ "$(_cut_string "${noipcom_feedback}" 1 7)" == "badauth" ]; then | |
| msg_error "no-ip.com: ERROR Invalid username (${noipcom_feedback})" | |
| exit 2 | |
| fi | |
| if [ "$(_cut_string "${noipcom_feedback}" 1 4)" == "good" ]; then | |
| msg_info "no-ip.com: DNS hostname update successful (${noipcom_feedback})" | |
| fi | |
| if [ "$(_cut_string "${noipcom_feedback}" 1 5)" == "nochg" ]; then | |
| msg_verbose "no-ip.com: IP address is current, no update performed (${noipcom_feedback})" | |
| fi | |
| msg_tattle "no-ip.com: $noipcom_feedback" | |
| ;; | |
| T) | |
| # testing option for scripting, that you dont get banned from a service | |
| msg_info "Performing no update (T option active) ;)" | |
| ;; | |
| esac | |
| msg_tattle "writing current ip '$current_ip' to ip cache '$ip_cache'" | |
| $echo $current_ip > $ip_cache | |
| msg_info "ip changed: $current_ip" | |
| else | |
| msg_tattle "IP Address not changed since last update, skipping." | |
| fi #/ if ip changed | |
| # check if nameserver got ip! | |
| if [ $ping_check -eq 1 ]; then | |
| sleep 20 | |
| ns_ip=`$ping -c 1 ${my_url} | $grep PING | $cut -d \( -f 2 | $cut -d \) -f 1` | |
| msg_tattle "Performed ping check, NS returned IP: $ns_ip" | |
| if [ "$current_ip" != "$ns_ip" ]; then | |
| msg_tattle "Nameservers did not register the change yet." | |
| if [ "$old_ip" == "--NOT---SYNCED--" ]; then | |
| msg_error "your dns service did not update your ip the first time\nMaybe you forgot to set the IPSYNMODE option to a correct value (T is just for testing)\ndns record: $ns_ip | your ip: $current_ip" | |
| fi | |
| # this forces an update at next check and prompts the error message | |
| msg_tattle "writing '--NOT---SYNCED--' to ip cache to force update!!!" | |
| $echo "--NOT---SYNCED--" > $ip_cache | |
| fi | |
| fi | |
| #/ check if nameserver got ip! | |
| msg_verbose "current ip: $current_ip" | |
| exit 0 | |