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ddclient.in
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#!/usr/bin/perl
######################################################################
#
# DDCLIENT - a Perl client for updating DynDNS information
#
# Author: Paul Burry (paul+ddclient@burry.ca)
# ddclient developers: see https://github.com/orgs/ddclient/people
#
# website: https://ddclient.net
#
# Support for multiple IP numbers added by
# Astaro AG, Ingo Schwarze <ischwarze-OOs/4mkCeqbQT0dZR+AlfA@public.gmane.org> September 16, 2008
#
# Support for multiple domain support for Namecheap by Robert Ian Hawdon 2010-09-03: https://robertianhawdon.me.uk/
#
# Initial Cloudflare support by Ian Pye, updated by Robert Ian Hawdon 2012-07-16
# Further updates by Peter Roberts to support the new API 2013-09-26, 2014-06-22: http://blog.peter-r.co.uk/
#
#
######################################################################
package ddclient;
require v5.10.1;
use strict;
use warnings;
use File::Basename;
use File::Path qw(make_path);
use File::Temp;
use Getopt::Long;
use IO::Socket::INET;
use Socket qw(AF_INET AF_INET6 PF_INET PF_INET6);
use Sys::Hostname;
use POSIX qw(strftime);
use version 0.77; our $VERSION = version->declare('v3.9.1');
(my $version = $VERSION->stringify()) =~ s/^v//;
my $programd = $0;
$programd =~ s%^.*/%%;
my $program = $programd;
$program =~ s/d$//;
my $now = time;
my $hostname = hostname();
# subst_var(subst, default) returns subst unless it looks like @foo@ in which case it returns
# default. The @foo@ strings are expected to be replaced by make; this function makes it possible
# to run this file as a Perl script before those substitutions are made.
sub subst_var {
my ($subst, $default) = @_;
return $default if $subst =~ qr'^@\w+@$';
return $subst;
}
my $etc = subst_var('@sysconfdir@', '/etc/ddclient');
my $cachedir = subst_var('@localstatedir@', '/var') . '/cache/ddclient';
my $savedir = '/tmp';
if ($program =~ /test/i) {
$etc = '.';
$cachedir = '.';
$savedir = 'URL';
}
my $msgs = '';
my $last_msgs = '';
## If run as *d (e.g., ddclientd) then daemonize by default (but allow
## flags and options to override).
my $daemon_default = ($programd =~ /d$/) ? interval('5m') : 0;
use vars qw($file $lineno);
local $file = '';
local $lineno = '';
$ENV{'PATH'} = (exists($ENV{PATH}) ? "$ENV{PATH}:" : "") . "/sbin:/usr/sbin:/bin:/usr/bin:/etc:/usr/lib:";
our %globals;
my ($result, %config, %cache);
my $saved_cache;
my %saved_opt;
my $daemon;
sub T_ANY { 'any' }
sub T_STRING { 'string' }
sub T_EMAIL { 'e-mail address' }
sub T_NUMBER { 'number' }
sub T_DELAY { 'time delay (ie. 1d, 1hour, 1m)' }
sub T_LOGIN { 'login' }
sub T_PASSWD { 'password' }
sub T_BOOL { 'boolean value' }
sub T_FQDN { 'fully qualified host name' }
sub T_OFQDN { 'optional fully qualified host name' }
sub T_FILE { 'file name' }
sub T_FQDNP { 'fully qualified host name and optional port number' }
sub T_PROTO { 'protocol' }
sub T_USE { 'ip strategy' }
sub T_IF { 'interface' }
sub T_PROG { 'program name' }
sub T_IP { 'ip' }
sub T_POSTS { 'postscript' }
## strategies for obtaining an ip address.
my %builtinweb = (
'dyndns' => {'url' => 'http://checkip.dyndns.org/', 'skip' => 'Current IP Address:'},
'freedns' => {'url' => 'https://freedns.afraid.org/dynamic/check.php'},
'googledomains' => {'url' => 'https://domains.google.com/checkip'},
'he' => {'url' => 'http://checkip.dns.he.net/'},
'ip4only.me' => {'url' => 'http://ip4only.me/api/'},
'ip6only.me' => {'url' => 'http://ip6only.me/api/'},
'ipify-ipv4' => {'url' => 'https://api.ipify.org/'},
'ipify-ipv6' => {'url' => 'https://api6.ipify.org/'},
'loopia' => {'url' => 'http://dns.loopia.se/checkip/checkip.php', 'skip' => 'Current IP Address:'},
'myonlineportal' => {'url' => 'https://myonlineportal.net/checkip'},
'noip-ipv4' => {'url' => 'http://ip1.dynupdate.no-ip.com/'},
'noip-ipv6' => {'url' => 'http://ip1.dynupdate6.no-ip.com/'},
'nsupdate.info-ipv4' => {'url' => 'http://ipv4.nsupdate.info/myip'},
'nsupdate.info-ipv6' => {'url' => 'http://ipv6.nsupdate.info/myip'},
'zoneedit' => {'url' => 'http://dynamic.zoneedit.com/checkip.html'},
);
my %builtinfw = (
'2wire' => {
'name' => '2Wire 1701HG Gateway',
'url' => '/xslt?PAGE=B01',
'skip' => 'Internet Address:',
},
'3com-3c886a' => {
'name' => '3com 3c886a 56k Lan Modem',
'url' => '/stat3.htm',
'skip' => 'IP address in use',
},
'3com-oc-remote812' => {
'name' => '3com OfficeConnect Remote 812',
'url' => '/callEvent',
'skip' => '.*LOCAL',
},
'alcatel-510' => {
'name' => 'Alcatel Speed Touch 510',
'url' => '/cgi/ip/',
'skip' => 'ppp',
},
'alcatel-530' => {
'name' => 'Alcatel/Thomson SpeedTouch 530',
'url' => '/cgi/status/',
'skip' => 'IP Address',
},
'alcatel-stp' => {
'name' => 'Alcatel Speed Touch Pro',
'url' => '/cgi/router/',
'skip' => 'Brt',
},
'allnet-1298' => {
'name' => 'Allnet 1298',
'url' => '/cgi/router/',
'skip' => 'WAN',
},
'cayman-3220h' => {
'name' => 'Cayman 3220-H DSL',
'url' => '/shell/show+ip+interfaces',
'skip' => '.*inet',
},
'dlink-524' => {
'name' => 'D-Link DI-524',
'url' => '/st_device.html',
'skip' => 'WAN.*?Addres',
},
'dlink-604' => {
'name' => 'D-Link DI-604',
'url' => '/st_devic.html',
'skip' => 'WAN.*?IP.*Address',
},
'dlink-614' => {
'name' => 'D-Link DI-614+',
'url' => '/st_devic.html',
'skip' => 'WAN',
},
'e-tech' => {
'name' => 'E-tech Router',
'url' => '/Status.htm',
'skip' => 'Public IP Address',
},
'elsa-lancom-dsl10' => {
'name' => 'ELSA LanCom DSL/10 DSL FW',
'url' => '/config/1/6/8/3/',
'skip' => 'IP.Address',
},
'elsa-lancom-dsl10-ch01' => {
'name' => 'ELSA LanCom DSL/10 DSL FW (isdn ch01)',
'url' => '/config/1/6/8/3/',
'skip' => 'IP.Address.*?CH01',
},
'elsa-lancom-dsl10-ch02' => {
'name' => 'ELSA LanCom DSL/10 DSL FW (isdn ch01)',
'url' => '/config/1/6/8/3/',
'skip' => 'IP.Address.*?CH02',
},
'linksys' => {
'name' => 'Linksys FW',
'url' => '/Status.htm',
'skip' => 'WAN.*?Address',
},
'linksys-rv042-wan1' => {
'name' => 'Linksys RV042 Dual Homed Router WAN Port 2',
'url' => '/home.htm',
'skip' => 'WAN1 IP',
},
'linksys-rv042-wan2' => {
'name' => 'Linksys RV042 Dual Homed Router WAN Port 2',
'url' => '/home.htm',
'skip' => 'WAN2 IP',
},
'linksys-ver2' => {
'name' => 'Linksys FW version 2',
'url' => '/RouterStatus.htm',
'skip' => 'WAN.*?Address',
},
'linksys-ver3' => {
'name' => 'Linksys FW version 3',
'url' => '/Status_Router.htm',
'skip' => 'WAN.*?Address',
},
'linksys-wcg200' => {
'name' => 'Linksys WCG200 FW',
'url' => '/RgStatus.asp',
'skip' => 'WAN.IP.*?Address',
},
'linksys-wrt854g' => {
'name' => 'Linksys WRT854G FW',
'url' => '/Status_Router.asp',
'skip' => 'IP Address:',
},
'maxgate-ugate3x00' => {
'name' => 'MaxGate UGATE-3x00 FW',
'url' => '/Status.htm',
'skip' => 'WAN.*?IP Address',
},
'netcomm-nb3' => {
'name' => 'NetComm NB3',
'url' => '/MainPage?id=6',
'skip' => 'ppp-0',
},
'netgear-dg834g' => {
'name' => 'netgear-dg834g',
'url' => '/setup.cgi?next_file=s_status.htm&todo=cfg_init',
'skip' => '',
},
'netgear-rp614' => {
'name' => 'Netgear RP614 FW',
'url' => '/sysstatus.html',
'skip' => 'IP Address',
},
'netgear-rt3xx' => {
'name' => 'Netgear FW',
'url' => '/mtenSysStatus.html',
'skip' => 'IP Address',
},
'netgear-wgt624' => {
'name' => 'Netgear WGT624',
'url' => '/RST_st_dhcp.htm',
'skip' => 'IP Address</B></td><TD NOWRAP width="50%">',
},
'netgear-wpn824' => {
'name' => 'Netgear WPN824 FW',
'url' => '/RST_status.htm',
'skip' => 'IP Address',
},
'netopia-r910' => {
'name' => 'Netopia R910 FW',
'url' => '/WanEvtLog',
'skip' => 'local:',
},
'olitec-SX200' => {
'name' => 'olitec-SX200',
'url' => '/doc/wan.htm',
'skip' => 'st_wan_ip[0] = "',
},
'rtp300' => {
'name' => 'Linksys RTP300',
'url' => '/cgi-bin/webcm?getpage=%2Fusr%2Fwww_safe%2Fhtml%2Fstatus%2FRouter.html',
'skip' => 'Internet.*?IP Address',
},
'siemens-ss4200' => {
'name' => 'Siemens SpeedStream 4200',
'url' => '/summary.htm',
'skip' => '',
},
'sitecom-dc202' => {
'name' => 'Sitecom DC-202 FW',
'url' => '/status.htm',
'skip' => 'Internet IP Address',
},
'smc-barricade' => {
'name' => 'SMC Barricade FW',
'url' => '/status.htm',
'skip' => 'IP Address',
},
'smc-barricade-7004vbr' => {
'name' => 'SMC Barricade FW (7004VBR model config)',
'url' => '/status_main.stm',
'skip' => 'var wan_ip=',
},
'smc-barricade-7401bra' => {
'name' => 'SMC Barricade 7401BRA FW',
'url' => '/admin/wan1.htm',
'skip' => 'IP Address',
},
'smc-barricade-alt' => {
'name' => 'SMC Barricade FW (alternate config)',
'url' => '/status.HTM',
'skip' => 'WAN IP',
},
'sohoware-nbg800' => {
'name' => 'SOHOWare BroadGuard NBG800',
'url' => '/status.htm',
'skip' => 'Internet IP',
},
'sveasoft' => {
'name' => 'Sveasoft WRT54G/WRT54GS',
'url' => '/Status_Router.asp',
'skip' => 'var wan_ip',
},
'thomson-st536v6' => {
'name' => 'Thomson SpeedTouch 536v6',
'url' => '/cgi/b/is/',
'skip' => 'IP Address',
},
'thomson-tg782' => {
'name' => 'Thomson/Technicolor TG782',
'url' => '/cgi/b/is/',
'skip' => 'IP Address',
},
'vigor-2200usb' => {
'name' => 'Vigor 2200 USB',
'url' => '/doc/online.sht',
'skip' => 'PPPoA',
},
'watchguard-edge-x' => {
'name' => 'Watchguard Edge X FW',
'url' => '/netstat.htm',
'skip' => 'inet addr:',
},
'watchguard-soho' => {
'name' => 'Watchguard SOHO FW',
'url' => '/pubnet.htm',
'skip' => 'NAME=IPAddress VALUE=',
},
'westell-6100' => {
'name' => 'Westell C90-610015-06 DSL Router',
'url' => '/advstat.htm',
'skip' => 'IP.+?Address',
},
'xsense-aero' => {
'name' => 'Xsense Aero',
'url' => '/A_SysInfo.htm',
'skip' => 'WAN.*?IP Address',
},
);
my %ip_strategies = (
'ip' => ": use IP given by '-ip <address>'",
'web' => ": obtain IP from the web-based IP discovery service given by '-web <service>|<url>'",
'fw' => ": obtain IP from a firewall/router device by visiting the URL given by '-fw <url>'",
'if' => ": obtain IP from the interface given by '-if <interface>'",
'cmd' => ": obtain IP by running the command given by '-cmd <command>'",
'cisco' => ": obtain IP from Cisco FW device at the address given by '-fw <address>'",
'cisco-asa' => ": obtain IP from Cisco ASA device at the address given by '-fw <address>'",
map({ $_ => sprintf(": obtain IP from %s device at the address given by '-fw <address>'",
$builtinfw{$_}->{'name'}) }
keys(%builtinfw)),
);
sub ip_strategies_usage {
return map({ sprintf(" -use=%-22s %s.", $_, $ip_strategies{$_}) }
('ip', 'web', 'if', 'cmd', 'fw', sort('cisco', 'cisco-asa', keys(%builtinfw))));
}
sub setv {
return {
'type' => shift,
'required' => shift,
'cache' => shift,
'default' => shift,
'minimum' => shift,
};
}
my %variables = (
'global-defaults' => {
'daemon' => setv(T_DELAY, 0, 0, $daemon_default, interval('60s')),
'foreground' => setv(T_BOOL, 0, 0, 0, undef),
'file' => setv(T_FILE, 0, 0, "$etc/$program.conf", undef),
'cache' => setv(T_FILE, 0, 0, "$cachedir/$program.cache", undef),
'pid' => setv(T_FILE, 0, 0, "", undef),
'proxy' => setv(T_FQDNP, 0, 0, undef, undef),
'protocol' => setv(T_PROTO, 0, 0, 'dyndns2', undef),
'use' => setv(T_USE, 0, 0, 'ip', undef),
'ip' => setv(T_IP, 0, 0, undef, undef),
'if' => setv(T_IF, 0, 0, 'ppp0', undef),
'web' => setv(T_STRING,0, 0, 'dyndns', undef),
'web-skip' => setv(T_STRING,1, 0, '', undef),
'fw' => setv(T_ANY, 0, 0, '', undef),
'fw-skip' => setv(T_STRING,1, 0, '', undef),
'fw-login' => setv(T_LOGIN, 1, 0, '', undef),
'fw-password' => setv(T_PASSWD,1, 0, '', undef),
'cmd' => setv(T_PROG, 0, 0, '', undef),
'cmd-skip' => setv(T_STRING,1, 0, '', undef),
'timeout' => setv(T_DELAY, 0, 0, interval('120s'), interval('120s')),
'retry' => setv(T_BOOL, 0, 0, 0, undef),
'force' => setv(T_BOOL, 0, 0, 0, undef),
'ssl' => setv(T_BOOL, 0, 0, 0, undef),
'curl' => setv(T_BOOL, 0, 0, 0, undef),
'ipv6' => setv(T_BOOL, 0, 0, 0, undef),
'syslog' => setv(T_BOOL, 0, 0, 0, undef),
'facility' => setv(T_STRING,0, 0, 'daemon', undef),
'priority' => setv(T_STRING,0, 0, 'notice', undef),
'mail' => setv(T_EMAIL, 0, 0, '', undef),
'mail-failure' => setv(T_EMAIL, 0, 0, '', undef),
'exec' => setv(T_BOOL, 0, 0, 1, undef),
'debug' => setv(T_BOOL, 0, 0, 0, undef),
'verbose' => setv(T_BOOL, 0, 0, 0, undef),
'quiet' => setv(T_BOOL, 0, 0, 0, undef),
'help' => setv(T_BOOL, 0, 0, 0, undef),
'test' => setv(T_BOOL, 0, 0, 0, undef),
'geturl' => setv(T_STRING,0, 0, '', undef),
'postscript' => setv(T_POSTS, 0, 0, '', undef),
'ssl_ca_dir' => setv(T_FILE, 0, 0, undef, undef),
'ssl_ca_file' => setv(T_FILE, 0, 0, undef, undef),
},
'service-common-defaults' => {
'server' => setv(T_FQDNP, 1, 0, 'members.dyndns.org', undef),
'login' => setv(T_LOGIN, 1, 0, '', undef),
'password' => setv(T_PASSWD,1, 0, '', undef),
'host' => setv(T_STRING,1, 1, '', undef),
'use' => setv(T_USE, 0, 0, 'ip', undef),
'if' => setv(T_IF, 0, 0, 'ppp0', undef),
'web' => setv(T_STRING,0, 0, 'dyndns', undef),
'web-skip' => setv(T_STRING,0, 0, '', undef),
'web-ssl-validate' => setv(T_BOOL, 0, 0, 1, undef),
'fw' => setv(T_ANY, 0, 0, '', undef),
'fw-skip' => setv(T_STRING,0, 0, '', undef),
'fw-login' => setv(T_LOGIN, 0, 0, '', undef),
'fw-password' => setv(T_PASSWD,0, 0, '', undef),
'fw-ssl-validate' => setv(T_BOOL, 0, 0, 1, undef),
'cmd' => setv(T_PROG, 0, 0, '', undef),
'cmd-skip' => setv(T_STRING,0, 0, '', undef),
'ipv6' => setv(T_BOOL, 0, 0, 0, undef),
'ip' => setv(T_IP, 0, 1, undef, undef),
'wtime' => setv(T_DELAY, 0, 1, 0, interval('30s')),
'mtime' => setv(T_NUMBER,0, 1, 0, undef),
'atime' => setv(T_NUMBER,0, 1, 0, undef),
'status' => setv(T_ANY, 0, 1, '', undef),
'min-interval' => setv(T_DELAY, 0, 0, interval('30s'), 0),
'max-interval' => setv(T_DELAY, 0, 0, interval('25d'), 0),
'min-error-interval' => setv(T_DELAY, 0, 0, interval('5m'), 0),
'warned-min-interval' => setv(T_ANY, 0, 1, 0, undef),
'warned-min-error-interval' => setv(T_ANY, 0, 1, 0, undef),
},
'dyndns-common-defaults' => {
'backupmx' => setv(T_BOOL, 0, 1, 0, undef),
'mx' => setv(T_OFQDN, 0, 1, '', undef),
'static' => setv(T_BOOL, 0, 1, 0, undef),
'wildcard' => setv(T_BOOL, 0, 1, 0, undef),
},
);
my %services = (
'changeip' => {
'updateable' => undef,
'update' => \&nic_changeip_update,
'examples' => \&nic_changeip_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'min-interval' => setv(T_DELAY, 0, 0, 0, interval('5m')),
'server' => setv(T_FQDNP, 1, 0, 'nic.changeip.com', undef),
},
},
'cloudflare' => {
'updateable' => undef,
'update' => \&nic_cloudflare_update,
'examples' => \&nic_cloudflare_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'backupmx' => setv(T_BOOL, 0, 1, 0, undef),
'login' => setv(T_LOGIN, 0, 0, 'token', undef),
'min-interval' => setv(T_DELAY, 0, 0, interval('5m'), 0),
'mx' => setv(T_OFQDN, 0, 1, '', undef),
'server' => setv(T_FQDNP, 1, 0, 'api.cloudflare.com/client/v4', undef),
'static' => setv(T_BOOL, 0, 1, 0, undef),
'ttl' => setv(T_NUMBER, 1, 0, 1, undef),
'wildcard' => setv(T_BOOL, 0, 1, 0, undef),
'zone' => setv(T_FQDN, 1, 0, '', undef),
},
},
'cloudns' => {
'updateable' => undef,
'update' => \&nic_cloudns_update,
'examples' => \&nic_cloudns_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'dynurl' => setv(T_STRING, 1, 0, undef, undef),
# nic_updateable() assumes that every service uses a username and password but that is
# not true for CloudNS. Silence warnings by redefining the username and password
# variables as non-required with a non-empty default.
'login' => setv(T_STRING, 0, 0, 'unused', undef),
'password' => setv(T_STRING, 0, 0, 'unused', undef),
},
},
'dinahosting' => {
'updateable' => undef,
'update' => \&nic_dinahosting_update,
'examples' => \&nic_dinahosting_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'min-error-interval' => setv(T_DELAY, 0, 0, interval('8m'), 0),
'script' => setv(T_STRING, 0, 1, '/special/api.php', undef),
'server' => setv(T_FQDNP, 1, 0, 'dinahosting.com', undef),
},
},
'dnsmadeeasy' => {
'updateable' => undef,
'update' => \&nic_dnsmadeeasy_update,
'examples' => \&nic_dnsmadeeasy_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'script' => setv(T_STRING, 1, 1, '/servlet/updateip', undef),
'server' => setv(T_FQDNP, 1, 0, 'cp.dnsmadeeasy.com', undef),
},
},
'dondominio' => {
'updateable' => undef,
'update' => \&nic_dondominio_update,
'examples' => \&nic_dondominio_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'server' => setv(T_FQDNP, 1, 0, 'dondns.dondominio.com', undef),
},
},
'dslreports1' => {
'updateable' => undef,
'update' => \&nic_dslreports1_update,
'examples' => \&nic_dslreports1_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'server' => setv(T_FQDNP, 1, 0, 'www.dslreports.com', undef),
'host' => setv(T_NUMBER, 1, 1, 0, undef),
},
},
'duckdns' => {
'updateable' => undef,
'update' => \&nic_duckdns_update,
'examples' => \&nic_duckdns_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'login' => setv(T_LOGIN, 0, 0, 'unused', undef),
'server' => setv(T_FQDNP, 1, 0, 'www.duckdns.org', undef),
},
},
'dyndns1' => {
'updateable' => \&nic_dyndns2_updateable,
'update' => \&nic_dyndns1_update,
'examples' => \&nic_dyndns1_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
%{$variables{'dyndns-common-defaults'}},
},
},
'dyndns2' => {
'updateable' => \&nic_dyndns2_updateable,
'update' => \&nic_dyndns2_update,
'examples' => \&nic_dyndns2_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
%{$variables{'dyndns-common-defaults'}},
'custom' => setv(T_BOOL, 0, 1, 0, undef),
'script' => setv(T_STRING, 1, 1, '/nic/update', undef),
},
},
'easydns' => {
'updateable' => undef,
'update' => \&nic_easydns_update,
'examples' => \&nic_easydns_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'backupmx' => setv(T_BOOL, 0, 1, 0, undef),
'min-interval' => setv(T_DELAY, 0, 0, interval('5m'), 0),
'mx' => setv(T_OFQDN, 0, 1, '', undef),
'server' => setv(T_FQDNP, 1, 0, 'members.easydns.com', undef),
'wildcard' => setv(T_BOOL, 0, 1, 0, undef),
},
},
'freedns' => {
'updateable' => undef,
'update' => \&nic_freedns_update,
'examples' => \&nic_freedns_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'min-interval' => setv(T_DELAY, 0, 0, 0, interval('5m')),
'server' => setv(T_FQDNP, 1, 0, 'freedns.afraid.org', undef),
},
},
'freemyip' => {
'updateable' => undef,
'update' => \&nic_freemyip_update,
'examples' => \&nic_freemyip_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'login' => setv(T_LOGIN, 0, 0, 'unused', undef),
'server' => setv(T_FQDNP, 1, 0, 'freemyip.com', undef),
},
},
'gandi' => {
'updateable' => undef,
'update' => \&nic_gandi_update,
'examples' => \&nic_gandi_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'min-interval' => setv(T_DELAY, 0, 0, 0, interval('5m')),
'server' => setv(T_FQDNP, 1, 0, 'api.gandi.net', undef),
'script' => setv(T_STRING, 1, 1, '/v5', undef),
'ttl' => setv(T_DELAY, 0, 0, undef, interval('5m')),
'zone' => setv(T_FQDN, 1, 0, undef, undef),
# Unused variables.
'login' => setv(T_STRING, 0, 0, 'unused', undef),
}
},
'googledomains' => {
'updateable' => undef,
'update' => \&nic_googledomains_update,
'examples' => \&nic_googledomains_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'min-interval' => setv(T_DELAY, 0, 0, interval('5m'), 0),
'server' => setv(T_FQDNP, 1, 0, 'domains.google.com', undef),
},
},
'namecheap' => {
'updateable' => undef,
'update' => \&nic_namecheap_update,
'examples' => \&nic_namecheap_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'min-interval' => setv(T_DELAY, 0, 0, 0, interval('5m')),
'server' => setv(T_FQDNP, 1, 0, 'dynamicdns.park-your-domain.com', undef),
},
},
'nfsn' => {
'updateable' => undef,
'update' => \&nic_nfsn_update,
'examples' => \&nic_nfsn_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'min_interval' => setv(T_FQDNP, 0, 0, 0, interval('5m')),
'server' => setv(T_FQDNP, 1, 0, 'api.nearlyfreespeech.net', undef),
'ttl' => setv(T_NUMBER, 1, 0, 300, undef),
'zone' => setv(T_FQDN, 1, 0, undef, undef),
},
},
'noip' => {
'updateable' => undef,
'update' => \&nic_noip_update,
'examples' => \&nic_noip_examples,
'variables' => {
'atime' => setv(T_NUMBER, 0, 1, 0, undef),
'custom' => setv(T_BOOL, 0, 1, 0, undef),
'host' => setv(T_STRING, 1, 1, '', undef),
'ip' => setv(T_IP, 0, 1, undef, undef),
'login' => setv(T_LOGIN, 1, 0, '', undef),
'max-interval' => setv(T_DELAY, 0, 0, interval('25d'), 0),
'min-error-interval' => setv(T_DELAY, 0, 0, interval('5m'), 0),
'min-interval' => setv(T_DELAY, 0, 0, interval('30s'), 0),
'mtime' => setv(T_NUMBER, 0, 1, 0, undef),
'password' => setv(T_PASSWD, 1, 0, '', undef),
'server' => setv(T_FQDNP, 1, 0, 'dynupdate.no-ip.com', undef),
'static' => setv(T_BOOL, 0, 1, 0, undef),
'status' => setv(T_ANY, 0, 1, '', undef),
'warned-min-error-interval' => setv(T_ANY, 0, 1, 0, undef),
'warned-min-interval' => setv(T_ANY, 0, 1, 0, undef),
'wtime' => setv(T_DELAY, 0, 1, 0, interval('30s')),
},
},
'nsupdate' => {
'updateable' => undef,
'update' => \&nic_nsupdate_update,
'examples' => \&nic_nsupdate_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'login' => setv(T_LOGIN, 1, 0, '/usr/bin/nsupdate', undef),
'tcp' => setv(T_BOOL, 0, 1, 0, undef),
'ttl' => setv(T_NUMBER, 0, 1, 600, undef),
'zone' => setv(T_STRING, 1, 1, '', undef),
},
},
'ovh' => {
'updateable' => undef,
'update' => \&nic_ovh_update,
'examples' => \&nic_ovh_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'login' => setv(T_LOGIN, 1, 0, '', undef),
'password' => setv(T_PASSWD, 1, 0, '', undef),
'script' => setv(T_STRING, 1, 1, '/nic/update', undef),
'server' => setv(T_FQDNP, 1, 0, 'www.ovh.com', undef),
},
},
'sitelutions' => {
'updateable' => undef,
'update' => \&nic_sitelutions_update,
'examples' => \&nic_sitelutions_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'server' => setv(T_FQDNP, 1, 0, 'www.sitelutions.com', undef),
'min-interval' => setv(T_DELAY, 0, 0, 0, interval('5m')),
},
},
'woima' => {
'updateable' => undef,
'update' => \&nic_woima_update,
'examples' => \&nic_woima_examples,
'variables' => {
'atime' => setv(T_NUMBER, 0, 1, 0, undef),
'backupmx' => setv(T_BOOL, 0, 1, 0, undef),
'custom' => setv(T_BOOL, 0, 1, 0, undef),
'ip' => setv(T_IP, 0, 1, undef, undef),
'login' => setv(T_LOGIN, 1, 0, '', undef),
'max-interval' => setv(T_DELAY, 0, 0, interval('25d'), 0),
'min-error-interval' => setv(T_DELAY, 0, 0, interval('5m'), 0),
'min-interval' => setv(T_DELAY, 0, 0, interval('30s'), 0),
'mtime' => setv(T_NUMBER, 0, 1, 0, undef),
'mx' => setv(T_OFQDN, 0, 1, '', undef),
'password' => setv(T_PASSWD, 1, 0, '', undef),
'script' => setv(T_STRING, 1, 1, '/nic/update', undef),
'server' => setv(T_FQDNP, 1, 0, 'dyn.woima.fi', undef),
'static' => setv(T_BOOL, 0, 1, 0, undef),
'status' => setv(T_ANY, 0, 1, '', undef),
'warned-min-error-interval' => setv(T_ANY, 0, 1, 0, undef),
'warned-min-interval' => setv(T_ANY, 0, 1, 0, undef),
'wildcard' => setv(T_BOOL, 0, 1, 0, undef),
'wtime' => setv(T_DELAY, 0, 1, 0, interval('30s')),
},
},
'yandex' => {
'updateable' => undef,
'update' => \&nic_yandex_update,
'examples' => \&nic_yandex_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'min-interval' => setv(T_DELAY, 0, 0, interval('5m'), 0),
'server' => setv(T_FQDNP, 1, 0, 'pddimp.yandex.ru', undef),
},
},
'zoneedit1' => {
'updateable' => undef,
'update' => \&nic_zoneedit1_update,
'examples' => \&nic_zoneedit1_examples,
'variables' => {
%{$variables{'service-common-defaults'}},
'min-interval' => setv(T_DELAY, 0, 0, interval('5m'), 0),
'server' => setv(T_FQDNP, 1, 0, 'dynamic.zoneedit.com', undef),
'zone' => setv(T_OFQDN, 0, 0, undef, undef),
},
},
);
$variables{'merged'} = {
map({ %{$services{$_}{'variables'}} } keys(%services)),
%{$variables{'dyndns-common-defaults'}},
%{$variables{'service-common-defaults'}},
%{$variables{'global-defaults'}},
};
# This will hold the processed args.
my %opt = ();
my $deprecated_handler = sub { warning("'-$_[0]' is deprecated and does nothing"); };
$opt{'fw-banlocal'} = $deprecated_handler;
$opt{'if-skip'} = $deprecated_handler;
my @opt = (
"usage: ${program} [options]",
"options are:",
["daemon", "=s", "-daemon <delay> : run as a daemon, specify <delay> as an interval"],
["foreground", "!", "-foreground : do not fork"],
["proxy", "=s", "-proxy <host> : use <host> as the HTTP proxy"],
["server", "=s", "-server <host> : update DNS information on <host>"],
["protocol", "=s", "-protocol <type> : update protocol used"],
["file", "=s", "-file <path> : load configuration information from <path>"],
["cache", "=s", "-cache <path> : record address used in <path>"],
["pid", "=s", "-pid <path> : record process id in <path> if daemonized"],
"",
["use", "=s", "-use <which> : how the IP address should be obtained"],
&ip_strategies_usage(),
"",
" Options that apply to 'use=ip':",
["ip", "=s", "-ip <address> : set the IP address to <address>"],
"",
" Options that apply to 'use=if':",
["if", "=s", "-if <interface> : obtain IP address from <interface>"],
"",
" Options that apply to 'use=web':",
["web", "=s", "-web <service>|<url> : obtain IP address from a web-based IP discovery service, either a known <service> or a custom <url>"],
["web-skip", "=s", "-web-skip <pattern> : skip any IP addresses before <pattern> in the text returned from the web-based IP discovery service"],
"",
" Options that apply to 'use=fw' and 'use=<device>':",
["fw", "=s", "-fw <address>|<url> : obtain IP address from device with IP address <address> or URL <url>"],
["fw-skip", "=s", "-fw-skip <pattern> : skip any IP addresses before <pattern> in the text returned from the device"],
["fw-login", "=s", "-fw-login <login> : use <login> when getting the IP from the device"],
["fw-password", "=s", "-fw-password <secret> : use password <secret> when getting the IP from the device"],
"",
" Options that apply to 'use=cmd':",
["cmd", "=s", "-cmd <command> : obtain IP address from the output of <command>"],
["cmd-skip", "=s", "-cmd-skip <pattern> : skip any IP addresses before <pattern> in the command's output"],
"",
["login", "=s", "-login <user> : log in to the dynamic DNS service as <user>"],
["password", "=s", "-password <secret> : log in to the dynamic DNS service with password <secret>"],
["host", "=s", "-host <host> : update DNS information for <host>"],
"",
["options", "=s", "-options <opt>=<val>[,<opt>=<val>,...]\n : optional per-service arguments (see below)"],
"",
["ssl", "!", "-{no}ssl : do updates over encrypted SSL connection"],
["ssl_ca_dir", "=s", "-ssl_ca_dir <dir> : look in <dir> for certificates of trusted certificate authorities (default: auto-detect)"],
["ssl_ca_file", "=s", "-ssl_ca_file <file> : look at <file> for certificates of trusted certificate authorities (default: auto-detect)"],
["fw-ssl-validate","!", "-{no}fw-ssl-validate : Validate SSL certificate when retrieving IP address from firewall"],
["web-ssl-validate","!","-{no}web-ssl-validate : Validate SSL certificate when retrieving IP address from web"],
["curl", "!", "-{no}curl : use curl for network connections"],
["retry", "!", "-{no}retry : retry failed updates"],
["force", "!", "-{no}force : force an update even if the update may be unnecessary"],
["timeout", "=i", "-timeout <max> : when fetching a URL, wait at most <max> seconds for a response"],
["syslog", "!", "-{no}syslog : log messages to syslog"],
["facility", "=s", "-facility <type> : log messages to syslog to facility <type>"],
["priority", "=s", "-priority <pri> : log messages to syslog with priority <pri>"],
["mail", "=s", "-mail <address> : e-mail messages to <address>"],
["mail-failure", "=s", "-mail-failure <addr> : e-mail messages for failed updates to <addr>"],
["exec", "!", "-{no}exec : do {not} execute; just show what would be done"],
["debug", "!", "-{no}debug : print {no} debugging information"],
["verbose", "!", "-{no}verbose : print {no} verbose information"],
["quiet", "!", "-{no}quiet : print {no} messages for unnecessary updates"],
["ipv6", "!", "-{no}ipv6 : use ipv6"],
["help", "", "-help : display this message and exit"],
["postscript", "", "-postscript : script to run after updating ddclient, has new IP as param"],
["query", "!", "-{no}query : print {no} ip addresses and exit"],
["fw-banlocal", "!", ""], ## deprecated
["if-skip", "=s", ""], ## deprecated
["test", "!", ""], ## hidden
["geturl", "=s", ""], ## hidden
"",
nic_examples(),
"$program version $version, ",
" originally written by Paul Burry, paul+ddclient\@burry.ca",
" project now maintained on https://github.com/ddclient/ddclient"
);
sub main {
## process args
my $opt_usage = process_args(@opt);
$saved_cache = '';
%saved_opt = %opt;
$result = 'OK';
test_geturl(opt('geturl')) if opt('geturl');
if (opt('help')) {
printf "%s\n", $opt_usage;
exit 0;
}
## read config file because 'daemon' mode may be defined there.
read_config($opt{'file'} // default('file'), \%config, \%globals);
init_config();
test_possible_ip() if opt('query');
my $caught_hup = 0;
my $caught_term = 0;
my $caught_int = 0;
$SIG{'HUP'} = sub { $caught_hup = 1; };
$SIG{'TERM'} = sub { $caught_term = 1; };
$SIG{'INT'} = sub { $caught_int = 1; };
# don't fork() if foreground
if (opt('foreground')) {
;
} elsif (opt('daemon')) {
$SIG{'CHLD'} = 'IGNORE';
my $pid = fork;
if ($pid < 0) {
print STDERR "${program}: can not fork ($!)\n";
exit -1;
} elsif ($pid) {
exit 0;
}
$SIG{'CHLD'} = 'DEFAULT';
open(STDOUT, ">/dev/null");
open(STDERR, ">/dev/null");
open(STDIN, "</dev/null");
write_pid();
}
umask 077;
do {
$now = time;
$result = 'OK';
%opt = %saved_opt;
if (opt('help')) {
*STDERR = *STDOUT;
printf("Help found");
}
read_config($opt{'file'} // default('file'), \%config, \%globals);
init_config();
read_cache(opt('cache'), \%cache);
print_info() if opt('debug') && opt('verbose');
fatal("invalid argument '-use %s'; possible values are:\n%s", $opt{'use'}, join("\n", ip_strategies_usage()))
unless exists $ip_strategies{lc opt('use')};
$daemon = opt('daemon');
update_nics();
if ($daemon) {
debug("sleep %s", $daemon);
sendmail();
my $left = $daemon;
while (($left > 0) && !$caught_hup && !$caught_term && !$caught_int) {
my $delay = $left > 10 ? 10 : $left;
$0 = sprintf("%s - sleeping for %s seconds", $program, $left);
$left -= sleep $delay;
# preventing deep sleep - see [bugs:#46]
if ($left > $daemon) {
$left = $daemon;
}
}
$caught_hup = 0;
$result = 0;
} elsif (!scalar(%config)) {
warning("no hosts to update.") unless !opt('quiet') || opt('verbose') || !$daemon;
$result = 1;
} else {
$result = $result eq 'OK' ? 0 : 1;
}
} while ($daemon && !$result && !$caught_term && !$caught_int);
warning("caught SIGINT; exiting") if $caught_int;
unlink_pid();
sendmail();
exit($result);
}
######################################################################
## runpostscript
######################################################################
sub runpostscript {
my ($ip) = @_;
if (defined $globals{postscript}) {
if (-x $globals{postscript}) {
system("$globals{postscript} $ip &");
} else {
warning("Can not execute post script: %s", $globals{postscript});
}
}
}
######################################################################
## update_nics
######################################################################
sub update_nics {
my %examined = ();
my %iplist = ();
foreach my $s (sort keys %services) {
my (@hosts, %ips) = ();
my $updateable = $services{$s}{'updateable'};
my $update = $services{$s}{'update'};
foreach my $h (sort keys %config) {
next if $config{$h}{'protocol'} ne lc($s);
$examined{$h} = 1;
# we only do this once per 'use' and argument combination
my $use = opt('use', $h);
my $arg_ip = opt('ip', $h) // '';
my $arg_fw = opt('fw', $h) // '';
my $arg_if = opt('if', $h) // '';
my $arg_web = opt('web', $h) // '';
my $arg_cmd = opt('cmd', $h) // '';
my $ip = "";
if (exists $iplist{$use}{$arg_ip}{$arg_fw}{$arg_if}{$arg_web}{$arg_cmd}) {
$ip = $iplist{$use}{$arg_ip}{$arg_fw}{$arg_if}{$arg_web}{$arg_cmd};
} else {
$ip = get_ip($use, $h);
if (!defined($ip)) {
warning("unable to determine IP address")
if !$daemon || opt('verbose');
next;
}
$iplist{$use}{$arg_ip}{$arg_fw}{$arg_if}{$arg_web}{$arg_cmd} = $ip;
}
$config{$h}{'wantip'} = $ip;